CN216781640U

CN216781640U - VVT phaser assembly fixture

Info

Publication number: CN216781640U
Application number: CN202220156680.6U
Authority: CN
Inventors: 曹邦贵
Original assignee: Yibin Tiangong Machinery Co ltd
Current assignee: Yibin Tiangong Machinery Co ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-06-21
Anticipated expiration: 2032-01-20

Abstract

The utility model belongs to the technical field of VVT phasers, and discloses an assembling tool for a VVT phaser, which is mainly used for solving the problems of multiple working procedures, troublesome processing and high cost of the conventional mode for assembling the traditional VVT phaser. This frock includes the bottom plate, be equipped with the dabber on the bottom plate, its axis perpendicular to bottom plate plane, the spindle still overlaps and is equipped with spacing dish, be clearance fit between spacing dish and the dabber, still be equipped with the sprocket bayonet lock on the spacing dish, adopt the mode of dabber location, only need with the sprocket, the rotor, stator cover is in the spindle correspondingly, it makes the sprocket corresponding with the screw hole on the stator to finely tune respective relative position again, at last will lap through connecting screw, the stator, the sprocket links together, the assembly is accomplished promptly, the overall structure of this frock is simple compact, operating procedure is few, manufacturing cost is lower than the cost in processing location pinhole, the time that the assembly is single product required is shorter, assembly efficiency is higher, can be applicable to the assembly work of big batch VVT phaser product.

Description

VVT phaser assembly fixture

Technical Field

The utility model belongs to the technical field of VVT phasers, and particularly relates to an assembling tool for a VVT phaser.

Background

With the continuous progress of modern automobile research and development technology, the requirements of users on the comfort of automobiles and the power and economy of engines are continuously improved, and the accompanying new technology is also endlessly developed. Among them, since the engine requires a large valve overlap angle and an intake valve closing angle at a high speed and a large load and requires a small valve overlap angle and an intake valve closing angle at a low speed and a small load to achieve optimization of dynamic property, economy, and emission performance, the variable valve mechanism technology has been rapidly developed. The main current large-scale application is Variable Valve Timing (VVT) technology, which has essentially become the standard of engines. The technology drives the VVT phaser to adjust the phase of the camshaft of the engine through the equipped electric control system and the engine oil control valve, so that the opening and closing time of the valve is changed along with the change of the rotating speed of the engine, the inflation efficiency is improved, and the power of the engine is increased.

The main structure of the current VVT phaser includes a sprocket, a stator, a rotor, a cover plate, a camshaft, etc., wherein the sprocket, the stator and the cover plate are generally assembled and positioned by a positioning pin, i.e., the sprocket and the stator are firstly fixed at relative positions by the positioning pin, and then the connecting screw is screwed down to achieve the mounting purpose. The disadvantage of this mounting method is that the sprocket and the stator need to be machined with locating pin holes, which requires high position accuracy, has a complex structure, is difficult to machine, has high machining cost, and needs to spend more machining time on a single part, so that the final cycle of the VVT phaser is longer, which is not favorable for mass production.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide an assembling tool for a VVT phaser, which does not need to machine positioning pin holes on a sprocket and a stator.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the assembly tool for the VVT phaser comprises a base plate, wherein a mandrel is arranged on the base plate, and the axis of the mandrel is perpendicular to the plane of the base plate. The connection mode of the mandrel and the bottom plate can be, but is not limited to, threaded connection, welding and interference fit.

Furthermore, the mandrel is also sleeved with a limiting disc, and the limiting disc and the mandrel are in clearance fit.

Furthermore, a chain wheel bayonet lock is further arranged on the limiting disc.

Further, still the cover is equipped with the fixed disk on the dabber, and the fixed disk is located between bottom plate and the spacing dish, fixed disk and bottom plate fixed connection.

Furthermore, the fixed disc and the bottom plate are correspondingly provided with positioning pins.

Furthermore, a groove is arranged on the end face of the limiting disc, which is in contact with the fixed disc.

Furthermore, still include adjusting screw, adjusting screw connects spacing dish and fixed disk, still is equipped with the arc spout with adjusting screw looks adaptation on the spacing dish.

Furthermore, a handle is arranged on the side wall of the limiting disc. The connection mode of the handle and the limiting disc can be but is not limited to threaded connection, welding and interference fit.

Furthermore, the bottom plate is provided with a mounting hole, and handles are arranged on two sides of the bottom plate.

Furthermore, the upper end face of the mandrel is provided with a camshaft positioning pin.

Compared with the prior art, the utility model has the following beneficial effects:

one, this frock adopts the mode of dabber location, only need with the sprocket, the rotor, the corresponding cover of stator is at the dabber, it is corresponding to make the screw hole on sprocket and the stator finely tune respective relative position again, at last with the apron through connecting screw, the stator, the sprocket links together, the assembly is accomplished promptly, the overall structure of this frock is simple compact, operating procedure is few, can perfectly play the location installation effect to sprocket and stator, guarantee the installation accuracy of VVT phaser, and the manufacturing cost of this frock is compared in the cost lower of processing location pinhole, the time that assembly one-piece product needs is shorter, assembly efficiency is higher, can be applicable to the assembly work of big batch VVT phaser product.

Two, still the cover is equipped with spacing dish on the dabber, only need when assembling the VVT phaser with the sprocket, the stator, the rotor, the apron sheathe in the dabber in proper order put on spacing dish can, be clearance fit between spacing dish and the dabber, can make spacing dish can rotate around the dabber, and then drive the sprocket that is located on spacing dish and rotate, adjust the relative position of sprocket and stator, and simple structure is reasonable, can guarantee that the relative position between sprocket and the stator is accurate, can reduce installation error.

Thirdly, still be equipped with the sprocket bayonet lock on spacing dish, the position of sprocket bayonet lock and the sprocket teeth of a cogwheel position looks adaptation of assembling, it can die the teeth of a cogwheel card of sprocket, and then makes sprocket and spacing dish can not take place relative rotation, guarantees to rotate the angle of spacing dish and be the turned angle of sprocket promptly, improves regulation accuracy and assembly efficiency.

Fourthly, still the cover is equipped with the fixed disk at the dabber, and the fixed disk is located between bottom plate and the spacing dish, fixed disk and bottom plate fixed connection, and the fixed disk plays the effect of transition in the middle of bottom plate and the spacing dish, not only can make things convenient for the spacing dish of rotation, can also prevent that spacing dish is direct to contact with the bottom plate and lead to the bottom plate wearing and tearing very fast, can improve holistic life.

And fifthly, the fixed disc and the bottom plate are correspondingly provided with positioning pins, the positioning pins play a role in positioning when the fixed disc and the bottom plate are installed, the coaxiality requirement between the fixed disc and the bottom plate can be ensured, the axis of the mandrel can be ensured to be perpendicular to the bottom plate and the fixed disc at the same time, the installation precision of the VVT phase shifter can be increased, and the assembly error is reduced.

Sixthly, be equipped with the recess on the terminal surface that spacing dish and fixed disk contacted, can reduce the area of contact of spacing dish and fixed disk, not only can reduce wearing and tearing speed between them, reduce wearing and tearing, can also reduce the rotational resistance of spacing dish through the mode that reduces frictional force, make it more laborsaving when rotating, can adjust the position of sprocket better.

Seventhly, still include adjusting screw, adjusting screw connects spacing dish and fixed disk, can make spacing dish and fixed disk keep on same axis, avoids spacing dish drunkenness from top to bottom and influences the installation of VVT phaser insecure, still is equipped with the arc spout with adjusting screw looks adaptation on the spacing dish, guarantees that spacing dish can rotate for the fixed disk to spacing dish can only be at the within range angle internal rotation of arc spout, can play the effect of fine setting to the sprocket, can avoid careless turned angle too much and influence the assembly efficiency of VVT phaser.

Eighthly, a handle is arranged on the side wall of the limiting disc, a worker only needs to hold the handle to slightly rotate, the positions of the chain wheel and the stator on the limiting disc can be adjusted, the labor is saved, the rotating force can be better mastered, the adjusting precision is improved, and the assembling efficiency is improved.

Ninth, be equipped with the mounting hole on the bottom plate, the mounting hole is used for fixing the bottom plate in ground basis or fixed frame, guarantees assembly job's stability, and its connected mode is not limited to screw, bolt etc. still is equipped with the handle in the both sides of bottom plate, can conveniently carry this frock to be applied to different workplaces.

And tenthly, a camshaft positioning pin is further arranged on the upper end face of the mandrel and is mainly used for positioning between the camshaft and the mandrel, the coaxiality requirement between the camshaft and the mandrel is guaranteed to reach the standard, and the mounting precision between the VVT phaser and the camshaft is further improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a top view of the present invention.

The device comprises a base plate 1, a mandrel 2, a limiting disc 3, a sprocket clamping pin 4, a fixing disc 5, a positioning pin 6, an adjusting screw 7, a handle 8, a mounting hole 9, a lifting handle 10 and a camshaft positioning pin 11.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 to 3, the VVT phaser assembling tool includes a bottom plate 1, a mandrel 2 is arranged on the bottom plate 1, an axis of the mandrel 2 is perpendicular to a plane of the bottom plate 1, corresponding threaded holes are axially arranged on the mandrel 2 and the bottom plate 1, and the mandrel 2 is connected with the bottom plate 1 through screws. This frock adopts the mode of dabber 2 location, only need with the sprocket, the rotor, the corresponding cover of stator is on dabber 2, it is corresponding to make the screw hole on sprocket and the stator finely tune respective relative position again, at last with the apron through connecting screw, the stator, the sprocket links together, the assembly is accomplished promptly, the overall structure of this frock is simple compact, operating procedure is few, can perfectly play the location installation effect to sprocket and stator, guarantee the installation accuracy of VVT phaser, and the manufacturing cost of this frock is compared in the cost lower of processing locating pin hole, the time that assembly singleton product needs is shorter, assembly efficiency is higher, can be applicable to the assembly work of big batch VVT phaser product.

It is equipped with spacing dish 3 still to overlap on dabber 2, only need with the sprocket when assembling VVT phaser, a stator, a rotor, the apron sheathe dabber 2 in proper order put on spacing dish 3 can, be clearance fit between spacing dish 3 and the dabber 2, can make spacing dish 3 rotate around dabber 2, and then drive the sprocket that is located on spacing dish 3 and rotate, adjust the relative position of sprocket and stator, moreover, the steam generator is simple in structure rationally, can guarantee that the relative position between sprocket and the stator is accurate, can reduce installation error.

Still be equipped with sprocket bayonet lock 4 on spacing dish 3, sprocket bayonet lock 4's position and the sprocket teeth of a cogwheel position looks adaptation of assembling, it can die the teeth of a cogwheel card of sprocket, and then makes sprocket and spacing dish 3 can not take place relative rotation, guarantees to rotate the angle of spacing dish 3 promptly for the turned angle of sprocket, improves regulation precision and assembly efficiency.

Still the cover is equipped with fixed disk 5 on dabber 2, and fixed disk 5 is located between bottom plate 1 and the spacing dish 3, through screw fixed connection between fixed disk 5 and the bottom plate 1, fixed disk 5 plays the effect of transition in bottom plate 1 and the spacing 3 middle of twining, not only can make things convenient for rotatory spacing dish 3, can also prevent that spacing dish 3 is direct to contact with bottom plate 1 and lead to bottom plate 1 wearing and tearing very fast, can improve holistic life.

The fixed disc 5 and the bottom plate 1 are correspondingly provided with the positioning pins 6, the positioning pins 6 play a role in positioning when the fixed disc 5 and the bottom plate 1 are installed, the coaxiality requirement between the fixed disc 5 and the bottom plate 1 can be guaranteed, the axis of the mandrel 2 can be perpendicular to the bottom plate 1 and the fixed disc 5 at the same time, the installation precision of the VVT phaser can be increased, and the assembly error is reduced.

Be equipped with the recess on the terminal surface that spacing dish 3 and fixed disk 5 contacted, the recess sets up around dabber 2, make the terminal surface of spacing dish 3 and fixed disk 5 both only in the partial contact of outer fringe, can reduce the area of contact of spacing dish 3 and fixed disk 5, not only can reduce wearing and tearing speed between them, reduce wearing and tearing, can also reduce spacing dish 3's rotation resistance through the mode that reduces frictional force, make it more laborsaving when rotating, can adjust the position of sprocket better.

Still include adjusting screw 7, adjusting screw 7 connects spacing dish 3 and fixed disk 5, can make spacing dish 3 and fixed disk 5 keep on same axis, avoids spacing dish 3 drunkenness from top to bottom and influences the installation of VVT phaser insecure, still is equipped with the arc spout with adjusting screw 7 looks adaptation on spacing dish 3, and spacing dish 3 can only be at the within range angular rotation of arc spout, can play the effect of fine setting to the sprocket, can avoid careless turned angle too much and influence the assembly efficiency of VVT phaser.

Be equipped with handle 8 on the lateral wall of spacing dish 3, handle 8 is the minor axis form, and its one end is equipped with the screw thread, is equipped with the screw hole of looks adaptation on the lateral wall of spacing dish 3, and both pass through threaded connection, and the staff only need hold handle 8 slightly and rotate, just can adjust the position that is located sprocket and stator on spacing dish 3, and is convenient laborsaving, can master the rotation dynamics better, and then improves the regulation precision, improves assembly efficiency.

Be equipped with mounting hole 9 on bottom plate 1, mounting hole 9 is used for fixing bottom plate 1 in ground basis or fixed frame, and its connected mode is for installing the briquetting in mounting hole 9, inserting ground basis or fixed frame through the bolt, still be equipped with handle 10 in the both sides of bottom plate 1, handle 10 is "Contraband" shape, its both ends that open and shut pass through the screw vertical connection on the plane of bottom plate 1, the closed end is certain angle with the vertical section, can conveniently carry this frock to be applied to different workplaces.

Still be equipped with camshaft locating pin 11 at the up end of dabber 2, its mainly used camshaft and the location between dabber 2 guarantee that the axiality between the two requires up to standard, and then improves the installation accuracy between VVT phaser and the camshaft.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a VVT phaser assembly fixture, its characterized in that includes bottom plate (1), is equipped with dabber (2) on bottom plate (1), the axis perpendicular to bottom plate (1) plane of dabber (2), it is spacing dish (3) still to overlap on dabber (2), is clearance fit between spacing dish (3) and dabber (2), still be equipped with sprocket bayonet lock (4) on spacing dish (3).

2. The assembly tooling for the VVT phaser of claim 1, wherein the mandrel (2) is further sleeved with a fixed disc (5), the fixed disc (5) is positioned between the bottom plate (1) and the limiting disc (3), and the fixed disc (5) is fixedly connected with the bottom plate (1).

3. The VVT phaser assembly tool of claim 2, wherein the fixed plate (5) and the base plate (1) are correspondingly provided with positioning pins (6).

4. The VVT phaser assembly tool of claim 2, wherein a groove is provided on an end surface of the limiting disc (3) contacting the fixed disc (5).

5. The assembly tooling for the VVT phaser of claim 2, further comprising an adjusting screw (7), wherein the adjusting screw (7) is connected with the limiting disc (3) and the fixed disc (5), and the limiting disc (3) is further provided with an arc-shaped chute matched with the adjusting screw (7).

6. The VVT phaser assembly tool of any one of claims 2 to 5, wherein a handle (8) is provided on a sidewall of the limiting plate (3).

7. The assembly tooling for the VVT phaser of claim 1, wherein the bottom plate (1) is provided with mounting holes (9), and handles (10) are arranged on two sides of the bottom plate (1).

8. The VVT phaser assembly tool of claim 1, wherein a camshaft positioning pin (11) is provided on an upper end face of the mandrel (2).