CN203385376U

CN203385376U - Angle testing fixture for steering gear shaft

Info

Publication number: CN203385376U
Application number: CN201320490075.3U
Authority: CN
Inventors: 刘青林; 李丽平; 阎江
Original assignee: ZHEJIANG ZOMAX AUTO TRANSMISSION CO Ltd
Current assignee: ZHEJIANG ZOMAX TRANSMISSION CO., LTD.
Priority date: 2013-08-12
Filing date: 2013-08-12
Publication date: 2014-01-08
Anticipated expiration: 2023-08-12

Abstract

The utility model provides an angle testing fixture for a steering gear shaft. The angle testing fixture is characterized by being provided with a bottom plate; the two ends of the steering gear shaft abut against two centers arranged on the bottom plate; a positioning pin, which is provided with a spring at the lower end, is arranged on the bottom plate; the top end of the positioning pin abuts against the inner part of a tooth groove at a tooth groove section of the gear shaft; an end face of the tooth groove section abuts against a positioning block arranged on the bottom plate; the angle testing fixture is also provided with a U-shaped clamping frame and the steering gear shaft penetrates through a space which is defined by two branches of the U-shaped clamping frame and a clamping frame pin. An adjusting screw rod abuts against the steering gear shaft. The clamping frame pin is fit on the supper surface of a tail-part arc groove of the gear shaft. The two sides of the U-shaped clamping frame are provided with measurement support frames which are arranged on the bottom plate. Dial indicators are arranged on the measurement support frames. Test heads of the dial indicators are in complete contact with the clamping frame pin. The angle testing fixture for the steering gear shaft enables measurement of an inclined angle between the center of the tooth groove and the center of the tail-part arc groove to become simple, time to be saved and manufacturing precision and efficiency to be improved.

Description

Tooth sector shaft angle degree cubing

Technical field

The utility model belongs to mechanical inspection machine, relates in particular to the inspection machine that the parameter of a kind of teeth groove center of the tooth sector axle that automotive transmission is used and afterbody arc groove center angle is detected.

Background technology

The teeth groove center of the tooth sector axle of automotive transmission and afterbody arc groove center angle are important parameters of tooth sector axle, and the tooth sector axle of finished product must check this parameter to guarantee that it is qualified.At present, for the check of this parameter, be all hand test, there is no special cubing, checkability is low, unstable result.

The utility model content

The utility model provides a kind of tooth sector shaft angle degree cubing, its objective is and solves the shortcoming that prior art exists, and makes to measure the teeth groove center with afterbody arc groove center angle is convenient and simple, save time, and raising machining precision and efficiency.

The utility model solves the technical scheme that its technical matters adopts:

Tooth sector shaft angle degree cubing is characterized in that: have base plate, on contact two of arranging on base plate in tooth sector axle two ends are top; Base plate is provided with the register pin that lower end is provided with spring, and the top contact of register pin is in the teeth groove of the teeth groove section of tooth sector axle; On the locating piece that an end face contact of teeth groove section arranges on base plate; There is a U-shaped holding frame, a holding frame pin passes two branches of U-shaped holding frame, the bottom of U-shaped holding frame is provided with logical screw, an adjusting screw(rod) is arranged in logical screw and passes logical screw, the space that the tooth sector axle surrounds through two branches and the holding frame pin of U-shaped holding frame, the adjusting screw(rod) contact is on the tooth sector axle, and the holding frame pin is fitted in the upper surface of gear shaft afterbody arc groove; The both sides of U-shaped holding frame have the measurement bracing frame be located on base plate, measure bracing frame and are provided with dial gauge, and the gauge head of dial gauge is sold out full the contact with holding frame.

Usefulness of the present utility model is:

The conversion of the logical helical pitch to gear shaft of the utility model, be the detection to the difference in height of two points of the holding frame pin of the inclination of ad-hoc location by the angle transformation of the gear teeth teeth groove central plane of gear and tail end arc groove central plane, thereby control the stability of whole process; Measure convenient and simplely, save time, improve machining precision and efficiency.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the utility model vertical view;

Fig. 2 is that the C of Fig. 1 is to view;

Fig. 3 is the A-A cutaway view Amplified image of Fig. 1;

Fig. 4 is the B-B cutaway view Amplified image of Fig. 1.

Embodiment

Tooth sector axle 9 in the utility model refers to and needs the tooth sector axle of measuring that it has teeth groove section 91, and teeth groove section 91 has teeth groove 92, and teeth groove section 92 has end face 93, and the gear shaft afterbody has arc groove 94.What need measurement is to measure teeth groove 92 centers and afterbody arc groove 94 center angles.

As shown in Figure 1,2,3, 4:

The utlity model has base plate 5, the two ends of base plate 5 be provided with two flexible top 2,7, flexible top the 2, the 7th, can regulate flexible and can fix, on two top 2,7 that tooth sector axle 9 two ends contacts arrange on base plate 5, and held out against.

Base plate 5 is provided with a V-type support 4, be provided with edge cover 41 in the shrinkage pool that V-type support 4 is offered, be provided with a spring 81 in edge cover 41, spring 81 tops head on a bulb register pin 8, the bulb shape top 80 of register pin 8 fully ordinatedly contact in the teeth groove 92 of the teeth groove section 91 of tooth sector axle 9 (as Fig. 3); The close contact of an end face 93 of a V-block 3 (being also locating piece) teeth groove section 92 is installed on V-type support 4 on V-block 3; The V-type truss of the top of V-block 3, V-type support 4 is lived tooth sector axle 9.

As Fig. 4, there is a U-shaped holding frame 15, a holding frame pin 14 passes two branches of U-shaped holding frame 15, the bottom of U-shaped holding frame 15 is provided with logical screw, adjusting screw(rod) 12 is arranged in the space that two branches extending into U-shaped holding frame 15 in logical screw and through logical screw and holding frame pin 14 surround, the end of adjusting screw(rod) 12 outside U-shaped holding frame 15 has handle 16, and the end within U-shaped holding frame 15 has pressure head 11.The space that tooth sector axle 9 surrounds through two branches and the holding frame pin 14 of U-shaped holding frame 15, rotate adjusting screw(rod) 12 feedings by handle 16, make pressure head 11 contacts on tooth sector axle 9, holding frame pin 14 is fitted in the upper surface (namely holding frame pin 14 touches two coboundarys of gear shaft afterbody arc groove 94) of gear shaft afterbody arc groove 94.

The both sides of U-shaped holding frame 15 have the measurement bracing frame 6 be located on base plate 5, measure bracing frame 6 and are provided with dial gauge 13, and the gauge head 131 of dial gauge 13 contacts fully with holding frame pin 14.

Operating process is as follows:

(1) as shown in Figure 1, Figure 2, Figure 3, Figure 4, first the U-shaped holding frame 15 of tooth sector axle 9 use is clamped, guarantee

holding frame pin

14 and 94 laminatings of gear shaft afterbody arc groove, and locking adjusting screw(rod) 12;

(2) will hold out against with two flexible top 2,7 of tooth sector axle 9 use of U-shaped holding frame 15, notice during clamping guaranteeing that register pin 8 coordinates with teeth groove 92 fully, end face 93 is fitted fully with V-block 3, and guarantees that holding frame pin 14 is above tooth sector axle 9;

(3) digital display centimeter 13 is encased in to the measurement bracing frame 6 (any one) on cubing, guarantees that gauge head 131 contacts fully with holding frame pin 14 fully;

(4) numerical value of digital display centimeter 13 is made zero, then the another one that digital display centimeter 13 is encased on cubing is measured bracing frame 6, reading numerical values;

According to the data of reading, angle of gear deviation and the dial gauge reading table of comparisons that inquiry is made in advance, obtain measuring teeth groove 92 centers and afterbody arc groove 94 center angles, then just can judge that whether product is qualified; Principle is: contact is in the teeth groove 92 of the teeth groove section 91 of tooth sector axle 9 fully ordinatedly on the bulb shape top 80 of register pin 8, and at this moment the central plane of teeth groove 92 is vertical; The various parameters of teeth groove section 91 and teeth groove 92 are determined; Bulb shape top 80 is determined to the distance of end face 93; Holding frame pin 14 is because the existence of teeth groove 92 centers and afterbody arc groove 94 center angles is tilted, distance between the measuring point of two dial gauges 13 is determined, the holding frame pin 14 of measuring these two point positions can record a difference in height reading, this reading is after the formula obtained according to each accessory size parameter is converted, just can obtain measuring teeth groove 92 centers and afterbody arc groove 94 center angles, thereby can produce angle of gear deviation and the dial gauge reading table of comparisons of being convenient to inquiry.

(5) after measuring, take off dial gauge 13 and tooth sector axle 9.

In order to guarantee measuring accuracy, first manufacture a standard component according to product requirement, first measure with multipurpose instrument (tool) on standard component and indicate actual angle and detected value, after first with standard component, cubing being proofreaied and correct during measurement, then put 9 measurements of tooth sector axle.

Claims

1. tooth sector shaft angle degree cubing is characterized in that: have base plate, on contact two of arranging on base plate in tooth sector axle two ends are top; Base plate is provided with the register pin that lower end is provided with spring, and the top contact of register pin is in the teeth groove of the teeth groove section of tooth sector axle; On the locating piece that an end face contact of teeth groove section arranges on base plate; There is a U-shaped holding frame, a holding frame pin passes two branches of U-shaped holding frame, the bottom of U-shaped holding frame is provided with logical screw, an adjusting screw(rod) is arranged in logical screw and passes logical screw, the space that the tooth sector axle surrounds through two branches and the holding frame pin of U-shaped holding frame, the adjusting screw(rod) contact is on the tooth sector axle, and the holding frame pin is fitted in the upper surface of gear shaft afterbody arc groove; The both sides of U-shaped holding frame have the measurement bracing frame be located on base plate, measure bracing frame and are provided with dial gauge, and the gauge head of dial gauge is sold out full the contact with holding frame.