CN217735965U

CN217735965U - Non-standard shaft pin for vehicle and coaxiality detection equipment thereof

Info

Publication number: CN217735965U
Application number: CN202221397829.6U
Authority: CN
Inventors: 陈雄武
Original assignee: Ningbo Zhenhua Auto Parts Co ltd
Current assignee: Ningbo Zhenhua Auto Parts Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-11-04
Anticipated expiration: 2032-06-06

Abstract

A kind of vehicle uses the non-standard axle pin and its axiality check out test set, the vehicle uses the non-standard axle pin to include regular polygon prism shape first section, non-standard axle body section and cylindrical end section, the first mass axis of the first section of regular polygon prism shape and second mass axis of the cylindrical end section are coincident each other, the third mass axis of the non-standard axle body section is staggered each other with first mass axis/second mass axis; a connecting jack is arranged on the first section of the regular polygon prism; the cylindrical tail section is provided with an external inserting positioning section in a backward protruding way; the non-standard shaft body section is in a downward convex cam shape. The coaxiality detection equipment comprises a clamp base, two clamping mechanisms and a detection tool, wherein the two clamping mechanisms are arranged on the clamp base, and a detection gap used for clamping the non-standard shaft pin for the vehicle is formed between the two clamping mechanisms. The invention provides a coaxiality detection device special for a non-standard shaft pin for a vehicle, which realizes a differentiated action point through an XYZ three-way adjusting mechanism so as to reduce the bearing pressure of a detection tool and ensure that the whole operation is more stable and reliable.

Description

Non-standard shaft pin for vehicle and coaxiality detection equipment thereof

Technical Field

The utility model belongs to the technical field of the technique that automobile parts product and production detected and specifically relates to an automobile-used nonstandard axis round pin and axiality check out test set thereof.

Background

The shaft pin is a standard fastener, can be statically and fixedly connected, can also move relative to a connected piece, and is mainly used for the hinged part of two parts to form hinge connection. The shaft pin is usually locked by a split pin, so that the working is reliable and the disassembly is convenient.

In the automotive industry, a large number of types of shaft pin parts are used and, due to the complexity and versatility of the construction, the shapes thereof are varied, for example: the automobile brake pedal shaft pin is a commonly used part for connecting a brake pedal and a booster. Due to the reliability requirements of the pedal and the mechanism, the main structural materials of the connecting part of the pedal and the booster are made of metal materials. The brake pedal is used as a part which frequently works in the use process of the vehicle, and collision and abrasion caused by movement between metals cannot be avoided. Impact and wear can cause noise and loss of transmission efficiency. Or the backrest support and the seat cushion support of the automobile seat are connected through a riveting shaft pin, and the backrest support and the seat cushion support which are connected through the riveting shaft pin can rotate relatively; or as a component in a piston engine. Its function is to control the opening and closing action of the valve. Although the rotational speed of the camshaft is half of that of the crankshaft in a four-stroke engine (the rotational speed of the camshaft is the same as that of the crankshaft in a two-stroke engine), the rotational speed is still high and the camshaft is subjected to a large torque, so that the camshaft is required to be high in strength and support in design, and the camshaft is generally made of high-quality alloy steel or alloy steel.

The axle pin for the vehicle mostly adopts non-standard parts which are provided with standard round axle sections and non-standard special sections, and the vehicle has extremely high requirements on quality and operation conditions, so that the requirement on the precision of the product of the axle pin for the vehicle is very high.

In order to realize the production detection of the shaft pin products for the vehicle, for example, an invention patent of CN202010464780.0 discloses a double-top anti-offset cutting clamp of an automobile camshaft, which relates to the field of camshaft processing, solves the problem of material waste generated by the double-top clamp of the automobile camshaft in the prior art, and has the technical key points that: the automobile camshaft clamping device comprises a base, wherein a second clamping unit adopting a double-ejector-tip clamping mode is arranged in the base, the second clamping unit comprises an ejector pin driving unit arranged in the base, two groups of ejector pin frames are arranged on the ejector pin driving unit, a first ejector pin is arranged on one group of ejector pin frames, a second ejector pin is arranged on the other group of ejector pin frames, a dividing head is fixedly connected with the second ejector pin, a lifting cylinder used for driving the ejector pin driving unit to lift is further arranged below the ejector pin driving unit, and the dividing head drives an automobile camshaft to rotate through the second ejector pin; the upper end of the base is also fixedly provided with a first clamping unit used for fixing the camshaft during drilling.

However, tests show that the tool for clamping and positioning through hole sites still has defects when the camshaft is produced, and the reason is that the camshaft is not regular, so that sufficient balance and stability cannot be maintained in the rotating process (the protruding section wholly shifts downwards when the protruding section is located downwards, and the protruding section wholly shifts upwards when the protruding section is located upwards), and then detected data distortion is caused, and the reliability of the product in actual use is low.

Disclosure of Invention

In order to overcome the above-mentioned not enough of prior art, the utility model provides an automobile-used nonstandard axis round pin and axiality check out test set thereof.

The technical proposal of the utility model for solving the technical problem is that: a non-standard shaft pin for a vehicle comprises a regular polygon prism-shaped first section, a non-standard shaft body section and a cylindrical tail section which are sequentially arranged from front to back, wherein a first mass axis of the regular polygon prism-shaped first section is overlapped with a second mass axis of the cylindrical tail section, and a third mass axis of the non-standard shaft body section is staggered with the first mass axis/the second mass axis;

the regular polygon prism-shaped head section is provided with a connecting jack;

the cylindrical tail section is provided with an external insertion positioning section in a backward protruding manner;

the non-standard shaft body section is in a downward convex cam shape.

The technical scheme is further characterized in that an inclined transition section is further arranged between the non-standard shaft body section and the cylindrical tail section, and a fool-proof notch used for identifying the installation direction is arranged on one side of the inclined transition section.

The technical proposal is further that the cylindrical tail section is also provided with a bearing mounting groove.

The utility model also provides a axiality check out test set, it is applied to as above automobile-used nonstandard pivot round pin, be in including anchor clamps base, two clamping mechanism of setting on the anchor clamps base and movably setting examine utensil on the anchor clamps base, form between two clamping mechanism and be used for the centre gripping automobile-used nonstandard pivot's detection clearance.

The technical scheme is further characterized in that an XYZ three-way adjusting mechanism is arranged on the base, and the checking fixture is arranged on the XYZ three-way adjusting mechanism.

The XYZ three-direction adjustment device comprises a longitudinal straight line module, a transverse straight line module and a vertical straight line module, wherein the longitudinal straight line module is installed at the lower end of a clamp base and acts on the clamp base, the transverse straight line module is fixedly connected with the longitudinal straight line module, the vertical straight line module is driven by the transverse straight line module, and the checking fixture is installed on the vertical straight line module.

The technical scheme is further characterized by further comprising a balance sleeve, wherein the balance sleeve is provided with an imitated groove attached to the outer wall of the non-standard shaft body section, the periphery of the balance sleeve is cylindrical, and the balance sleeve is combined with the non-standard shaft body section and then provided with a fourth mass axis superposed with the first mass axis/the second mass axis.

The technical scheme is further characterized in that the balance sleeve is a magnetic balance sleeve, and the magnetic balance sleeve is magnetically connected with the non-standard shaft body section.

In relation to the above technical solution, it is further provided that the clamping mechanism includes a first clamping assembly and a second clamping assembly;

the first clamping assembly comprises a first fixed seat fixedly connected with the clamp base, a first mounting seat arranged in front of the first fixed seat, and a tip assembly penetrating in the first mounting seat, and the tip assembly can be aligned to and inserted into the connecting jack of the first section of the regular polygon prism;

the second clamping component comprises a second fixing seat fixedly connected with the clamp base, a second mounting seat arranged in front of the second fixing seat and a shaft hole formed in the front end of the second mounting seat, and the outer inserting positioning section of the cylindrical tail section can be aligned to and inserted into the shaft hole.

The fixture base is provided with a sliding groove, the first clamping assembly and the second clamping assembly are provided with guide ribs, the guide ribs are inserted into the sliding groove and can move along the sliding groove, and the first clamping assembly and the second clamping assembly can be fixed together with the fixture base through screws.

The beneficial effects of the utility model reside in that:

1. the two ends of the non-standard axle pin for the vehicle form transmission fit with external accessories through the external insertion positioning section and the connecting jack respectively, and one of the two parts is convex and concave, so that the whole stress of the non-standard axle pin for the vehicle is more balanced, and more severe use working conditions can be met. On the other hand, the non-standard shaft body section is in a downward convex cam shape to control the opening and closing action of a valve component (such as a valve).

2. The utility model provides a be exclusively used in axiality check out test set of automobile-used nonstandard pivot, it is through X to acting on anchor clamps base, Y to acting on vertical straight line module, Z to examining the utensil, has realized the effect position of differentiation formula to alleviate the bearing pressure who examines the utensil, make holistic operation more steady reliable.

3. Through the setting of balanced cover, cooperation non-mark axle body section uses in the testing process, can make whole automobile-used non-mark axle pin's barycenter axle coincide, and then each position receives gravity to influence the same when rotating for the data that detect are more accurate.

Drawings

Fig. 1 is a schematic structural view of the non-standard shaft pin for the middle car of the present invention.

Fig. 2 is a schematic structural view of another angle of the non-standard shaft pin for the middle vehicle of the present invention.

FIG. 3 is a schematic view of the fitting of the non-standard shaft body section and the balance sleeve.

Fig. 4 is a schematic view of each mass axis of the non-standard shaft pin for the motorcycle of the present invention.

Fig. 5 is a schematic view of a partial structure of the middle coaxiality detecting apparatus according to the present invention.

Fig. 6 is a schematic structural diagram of the XYZ three-way adjustment mechanism of the present invention.

Fig. 7 is a schematic diagram of the complete structure of the middle coaxiality detection apparatus of the present invention.

FIG. 8 is a schematic view of the axiality detection apparatus detecting a non-standard pin for a vehicle.

In the figure: 1. a regular polygonal prism-shaped first section; 2. a non-standard shaft body section; 3. a cylindrical tail section; 4. connecting the jacks; 5. externally inserting a positioning section; 6. a sloped transition section; 7. a fool-proof notch; 8. a bearing mounting groove; 9. a clamp base; 10. a checking fixture; 11. detecting a gap; 12. a longitudinal straight line module; 13. a transverse straight line module; 14. a vertical straight line module; 15. a balance sleeve; 16. a first clamping assembly; 17. a second clamping assembly; 18. a first fixed seat; 19. a first mounting seat; 20. a tip assembly; 21. a second fixed seat; 22. a second mounting seat; 23. a shaft hole; 24. a chute; 25. a guide rib; 26. a screw; 27. a non-standard shaft pin for a vehicle; 28. a coaxiality detection device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example one

Referring to fig. 1 to 3, a non-standard shaft pin 27 for a vehicle includes a regular polygonal first section 1, a non-standard shaft section 2 and a cylindrical tail section 3, which are sequentially arranged from front to back, wherein a first mass axis a of the regular polygonal first section 1 and a second mass axis b of the cylindrical tail section 3 are overlapped with each other, and a third mass axis c of the non-standard shaft section 2 and the first mass axis a/the second mass axis b are staggered with each other; the regular polygon prism-shaped first section 1 is provided with a connecting jack 4; the cylindrical tail section 3 is provided with an external insertion positioning section 5 in a backward protruding way; the non-standard shaft body section 2 is in a downward convex cam shape.

The above is the basic solution of the present invention, both ends of the non-standard axle pin 27 are respectively engaged with the external fittings through the external insertion positioning section 5 and the connection jack 4, and both are convex-concave, so that the overall stress of the non-standard axle pin is more balanced, and the more severe working condition can be satisfied. On the other hand, the non-standard shaft body section 2 is in a downward convex cam shape to control the opening and closing action of a valve component (such as a valve).

The further setting up about above-mentioned technical scheme still has slope changeover portion 6 between non-mark axle body section 2 and cylindric tail section 3, one of them side of slope changeover portion 6 be equipped with and be used for discerning the fool-proof breach 7 of installation direction to make things convenient for the staff to discern the direction fast and once install and target in place.

Further, the cylindrical tail section 3 is also provided with a bearing mounting groove 8. The bearing can be sleeved in the bearing mounting groove 8 to play a supporting role when the non-standard shaft pin 27 for the vehicle rotates, reduce the friction coefficient in the movement process and ensure the rotation precision.

Example two

Referring to fig. 4 to 8, the utility model also provides a axiality check out test set 28, it is applied to as above automobile-used nonstandard axle round pin 27, including anchor clamps base 9, set up two clamping mechanism on anchor clamps base 9 and movably setting up examine utensil 10 on anchor clamps base 9 forms between two clamping mechanism and is used for the centre gripping automobile-used nonstandard axle round pin 27's detection clearance 11.

Because automobile-used non-standard axle round pin 27 itself belongs to non-standard spare part, and then leads to current check out test set who is used for detecting this type of automobile-used non-standard axle round pin 27 also to be the customization, and single equipment can only detect single product, but the producer need produce the product of a great deal of different specification and dimension, and then needs various check out test set, occupies a large amount of place spaces, and greatly increased enterprise's economic burden. In order to solve the above defects, a single coaxiality detection device 28 can meet the detection use requirements of the non-standard axle pins 27 for vehicles with different specifications and sizes, specifically: the base is provided with an XYZ three-way adjusting mechanism, and the checking fixture 10 is installed on the XYZ three-way adjusting mechanism. The XYZ three-direction adjustment comprises a longitudinal straight line module 12, a transverse straight line module 13 and a vertical straight line module 14, wherein the longitudinal straight line module 12 is installed at the lower end of a clamp base 9 and acts on the clamp base 9, the transverse straight line module 13 is fixedly connected with the longitudinal straight line module 12, the vertical straight line module 14 is driven by the transverse straight line module 13, and the checking fixture 10 is installed on the vertical straight line module 14. When in use, the longitudinal linear module 12 can drive the clamp base 9 to move and adjust along the longitudinal direction; the transverse linear module 13 can drive the vertical linear module 14 to move and adjust along the transverse direction, and the vertical linear module 14 can drive the checking fixture 10 to move and adjust along the transverse direction, so that the three-way adjustment of the checking fixture 10 relative to the clamp base 9 in the X direction, the Y direction and the Z direction is realized; and act on through X to anchor clamps base 9, Y to act on to examine utensil 10 to 14, Z to acting on of vertical straight line module, realized the effect position of partition formula to alleviate the bearing pressure who examines utensil 10, make holistic operation more steady reliable.

The longitudinal linear module 12, the transverse linear module 13, and the vertical linear module 14 are preferably nut-screw motion mechanisms driven by motors.

EXAMPLE III

During detection, due to the existence of the non-standard shaft body section 2, the non-standard shaft body section is not regular, so that sufficient balance and stability cannot be kept in the rotating process (the convex section is wholly downwards offset when the convex section is arranged downwards, and the convex section is wholly upwards translated when the convex section is arranged upwards), further, the detected data distortion is caused, and the reliability of the product during actual use is low.

In order to solve the above defects of the prior art, the adopted scheme is as follows: referring to fig. 4, the non-standard shaft body section 2 further comprises a balance sleeve 15, the balance sleeve 15 is provided with a contour groove attached to the outer wall of the non-standard shaft body section 2, the outer periphery of the balance sleeve 15 is cylindrical, and the balance sleeve 15 is combined with the non-standard shaft body section 2 to form a fourth mass center axis d coinciding with the first mass center axis a/the second mass center axis b. Through the setting of balance sleeve 15, cooperation non-standard axle body section 2 uses in the testing process, can make whole automobile-used non-standard axle round pin 27's barycenter axle coincide, and then each position receives gravity to influence the same when rotating for the data that detect are more accurate.

In the rotating process, due to the existence of centrifugal force, the balance sleeve 15 and the non-standard shaft pin 27 for the vehicle can slide and loosen mutually under the condition of lacking the limit of the balance sleeve 15. In this embodiment, the balance sleeve 15 is a magnetic balance sleeve 15, and the magnetic balance sleeve 15 is magnetically connected with the non-standard shaft body section 2. By adopting the connection scheme, on one hand, the balance sleeve 15 and the non-standard shaft pin 27 for the vehicle can be conveniently disassembled and assembled; on the other hand, the connecting strength can be improved during connection, and the balance sleeve 15 is effectively prevented from sliding or loosening relative to the non-standard shaft pin 27 for the vehicle during rotation.

Example four

In order to improve the utility model discloses well axiality check out test set 28's commonality to the detection demand of the more specification products of adaptation, it is specific: referring to fig. 5-8, the clamping mechanism includes a first clamping assembly 16 and a second clamping assembly 17; the first clamping assembly 16 comprises a first fixed seat 18 fixedly connected with the clamp base 9, a first mounting seat 19 arranged in front of the first fixed seat 18, and a tip assembly 20 penetrating through the first mounting seat 19, wherein the tip assembly 20 can be aligned to and inserted into the connecting jack 4 of the regular polygonal prism-shaped first section 1; the second clamping assembly 17 comprises a second fixed seat 21 fixedly connected with the clamp base 9, a second mounting seat 22 arranged in front of the second fixed seat 21, and a shaft hole 23 formed in the front end of the second mounting seat 22, and the externally-inserted positioning section 5 of the cylindrical tail section 3 can be aligned to and inserted into the shaft hole 23. Furthermore, the fixture base 9 is provided with a sliding groove 24, the first clamping assembly 16 and the second clamping assembly 17 are both provided with a guide rib 25, the guide rib 25 is inserted into the sliding groove 24 and can move along the sliding groove 24, the purpose of adjusting the size of the detection gap 11 is achieved, and the first clamping assembly 16 and the second clamping assembly 17 can be fixed together with the fixture base 9 through screws 26.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to utility model technical entity to any simple modification, change and the equivalent structure change of doing above embodiment, all still belong to the utility model discloses technical scheme's within the scope of protection.

Claims

1. A non-standard shaft pin for a vehicle is characterized in that: the device comprises a regular polygon prism-shaped first section (1), a non-standard shaft section (2) and a cylindrical tail section (3) which are sequentially arranged from front to back, wherein a first mass axis of the regular polygon prism-shaped first section (1) is overlapped with a second mass axis of the cylindrical tail section (3), and a third mass axis of the non-standard shaft section (2) is staggered with the first mass axis/the second mass axis;

the regular polygon prism-shaped first section (1) is provided with a connecting jack (4);

the cylindrical tail section (3) is provided with an external insertion positioning section (5) in a backward protruding way;

the non-standard shaft body section (2) is in a downward convex cam shape.

2. The non-standard shaft pin for vehicle according to claim 1, wherein: non-mark axle body section (2) and cylindric tail section (3) between still have slope changeover portion (6), one of them side of slope changeover portion (6) be equipped with and be used for discerning slow-witted breach (7) of preventing of installation direction.

3. The non-standard shaft pin for vehicle according to claim 1, wherein: and a bearing mounting groove (8) is also formed in the cylindrical tail section (3).

4. A coaxiality detection device (28) applied to the non-standard shaft pin (27) for the vehicle as claimed in any one of claims 1 to 3, comprising a clamp base (9), two clamping mechanisms arranged on the clamp base (9), and a detection tool (10) movably arranged on the clamp base (9), wherein a detection gap (11) for clamping the non-standard shaft pin (27) for the vehicle is formed between the two clamping mechanisms.

5. The coaxiality detection apparatus according to claim 4, wherein: an XYZ three-way adjusting mechanism is arranged on the base, and the detection tool (10) is installed on the XYZ three-way adjusting mechanism.

6. The coaxiality detection apparatus according to claim 5, wherein: the XYZ three-direction adjustment device comprises a longitudinal straight line module (12) which is installed at the lower end of a clamp base (9) and acts on the clamp base (9), a transverse straight line module (13) which is fixedly connected with the longitudinal straight line module (12), and a vertical straight line module (14) driven by the transverse straight line module (13), wherein the inspection tool (10) is installed on the vertical straight line module (14).

7. The coaxiality detection apparatus according to claim 6, wherein: the non-standard shaft body section is characterized by further comprising a balance sleeve (15), wherein the balance sleeve (15) is provided with a profiling groove attached to the outer wall of the non-standard shaft body section (2), the periphery of the balance sleeve (15) is cylindrical, and the balance sleeve (15) is combined with the non-standard shaft body section (2) to form a fourth mass axis coincident with the first mass axis/the second mass axis.

8. The coaxiality detection apparatus according to claim 7, wherein: the balance sleeve (15) is a magnetic balance sleeve (15), and the magnetic balance sleeve (15) is magnetically connected with the non-standard shaft body section (2).

9. The coaxiality detection apparatus according to claim 4, wherein: the clamping mechanism comprises a first clamping component (16) and a second clamping component (17);

the first clamping assembly (16) comprises a first fixed seat (18) fixedly connected with the clamp base (9), a first mounting seat (19) arranged in front of the first fixed seat (18), and a tip assembly (20) penetrating through the first mounting seat (19), wherein the tip assembly (20) can be aligned to and inserted into the connecting jack (4) of the regular polygonal column-shaped first section (1);

the second clamping component (17) comprises a second fixing seat (21) fixedly connected with the clamp base (9), a second mounting seat (22) arranged in front of the second fixing seat (21) and a shaft hole (23) formed in the front end of the second mounting seat (22), and the externally inserted positioning section (5) of the cylindrical tail section (3) can be aligned to and inserted into the shaft hole (23).

10. The coaxiality detection apparatus according to claim 9, wherein: the clamp base (9) on seted up spout (24), first clamping component (16) and second clamping component (17) on all be equipped with direction muscle (25), direction muscle (25) insert in spout (24) and can remove along spout (24), just first clamping component (16) and second clamping component (17) can also through screw (26) with clamp base (9) fixed together.