CN219416028U - Small modulus spline span and top diameter contrast measuring tool - Google Patents

Abstract

The utility model discloses a small-modulus spline span and diameter-jacking contrast measuring tool which comprises a dial indicator, a meter chuck, a measuring tool body, an upper measuring head and a bottom thimble, wherein an upper base plate is arranged on the top surface of the measuring tool body; the measuring tool is suitable for the span and top diameter contrast measurement of the steering gear small-modulus spline shaft; the quick measurement can be realized, the operation is simple, the dependence on operators is reduced, and the measurement precision and efficiency are improved.

Description

Small modulus spline span and top diameter contrast measuring tool

Technical Field

The utility model relates to the technical field of measurement of spline spans and propping diameters, in particular to a small-modulus spline span and propping diameter comparison measuring tool.

Background

The input shaft is a power transmission part of an automobile hydraulic steering gear, the connecting part of the input shaft adopts a spline structure, the prior spline is required to use a micrometer and a measuring rod to measure the span and the top diameter of the spline after rolling, and the micrometer cannot accurately position the maximum sizes of the span and the top diameter of the spline due to smaller modulus, so that the measuring result is very dependent on the skill level of an operator.

The measurement of the spline span and the top diameter of the input shaft of the steering gear is inaccurate and has low efficiency, because: 1. measuring the span, namely measuring by using a micrometer and measuring sticks, wherein two measuring sticks are symmetrically placed in a central tooth socket of a spline when the span is measured, and then measuring by using the micrometer to find the highest point of the measuring sticks, so that the highest point of the two measuring sticks is not easy to find, and measurement deviation occurs; 2. measuring the top diameter: two tooth tops in the 180-degree direction of the spline are needed to be found by using a micrometer, and the largest tooth top is not easy to find by measuring data, so that measurement deviation occurs.

Disclosure of Invention

The utility model aims to overcome the existing defects and provide a small-modulus spline span and top diameter comparison measuring tool which is suitable for span and top diameter comparison measurement of a steering gear small-modulus spline shaft; the quick measurement can be realized, the operation is simple, the dependence on operators is reduced, the measurement precision and efficiency are improved, and the problems in the background technology can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a small modulus spline span, top footpath contrast gauge, includes amesdial, table chuck, survey a body, go up gauge head and bottom thimble, and the top surface of survey a body is provided with the upper padding plate, passes through long screw fixation between table chuck, upper padding plate, the survey a body three, and the amesdial is installed on the table chuck to through hexagon socket head cap screw fastening, go up the gauge head and wear in the gauge head upper inner hole of survey a body, and be provided with compression spring between last gauge head and the upper padding plate, the upper end threaded connection of going up the gauge head has the measurement body, and the measurement body upper end center corresponds with the lower extreme measurement head of amesdial, the left side of upper padding plate is provided with lever assembly, and the lower terminal surface of survey a body is provided with the lower bolster, and the bottom thimble sets up in the thimble lower inner hole of survey a body, and bottom thimble and lower bolster pass through the fix with screw.

Further, the lever assembly comprises a cylindrical pin, a lever and a lever supporting block, the lever supporting block is fixed on the upper base plate, the lever is rotationally connected with the lever supporting block through the cylindrical pin, and the right end of the lever corresponds to the measuring body.

Further, the upper measuring head is a span upper measuring head, and a sphere structure is arranged at the lower end of the span upper measuring head.

Further, the upper measuring head is a top diameter upper measuring head, and the lower end of the span upper measuring head is provided with an arc structure.

Further, the center of the measuring tool body is provided with a center hole which is respectively communicated with the upper inner hole of the measuring head and the lower inner hole of the thimble.

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

the measuring tool is suitable for the span and top diameter contrast measurement of the steering gear small-modulus spline shaft; the quick measurement can be realized, the operation is simple, the dependence on operators is reduced, and the measurement precision and efficiency are improved.

Drawings

FIG. 1 is an isometric view of the present utility model;

FIG. 2 is a schematic view of a cross-sectional structure of the present utility model;

FIG. 3 is a schematic view of a top diameter measuring section structure of the present utility model;

FIG. 4 is a schematic diagram of a span measurement of the present utility model;

FIG. 5 is a schematic diagram of the top diameter measurement of the present utility model.

In the figure: the measuring device comprises a dial gauge 1, a meter chuck 2, a measuring body 3, an upper measuring head 4, a measuring tool body 5, a central hole 6, a cylindrical pin 7, a lever 8, a lever support block 9, a hexagon socket head cap screw 10, a lower backing plate 11, a compression spring 12, a span upper measuring head 13, a long screw 14, a bottom thimble 15, a top diameter upper measuring head 16, a measuring head upper inner hole 17, a backing plate 18 and a thimble lower inner hole 19.

Detailed Description

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a small modulus spline span, the contrast gauge of top diameter, including amesdial 1, table chuck 2, survey utensil body 5, go up gauge 4 and bottom thimble 15, the top surface of survey utensil body 5 is provided with upper backing plate 18, be fixed through long screw 14 between table chuck 2, upper backing plate 18, survey utensil body 5 three, amesdial 1 installs on table chuck 2, and fasten through hexagon socket head screw 10, go up gauge 4 and wear in survey gauge upper inner hole 17 of utensil body 5, and be provided with compression spring 12 between upper gauge 4 and upper backing plate 18, compression spring 12 provides decurrent force for last gauge 4, drive upper gauge 4 lower extreme and spline contact, cooperation bottom thimble 15 is measured the spline, upper end threaded connection of upper gauge 4 has measurement body 3, the upper end center of measurement body 3 corresponds with the lower extreme of amesdial 1, the left side of upper backing plate 18 is provided with the lever assembly, the lower terminal surface of survey utensil body 5 is provided with lower bolster 11, bottom thimble 15 sets up in the lower inner hole 19 of survey utensil body 5, bottom thimble 15 and lower backing plate 11 are provided with through fixed gauge 5's upper center hole 6 and lower hole 6 respectively, center hole 17 and lower hole 19 are connected with lower gauge 5.

The lever assembly comprises a cylindrical pin 7, a lever 8 and a lever supporting block 9, the lever supporting block 9 is fixed on an upper base plate 18, the lever 8 is rotationally connected with the lever supporting block 9 through the cylindrical pin 7, the right end of the lever 8 corresponds to the measuring body 3, the right end of the lever 8 drives the measuring body 3 by pressing down the lever 8, the measuring body 3 drives the upper measuring head 4 to overcome the elasticity of the compression spring 12 to move upwards, and at the moment, a spline of a measuring workpiece is inserted into the central hole 6, so that the operation is convenient.

The upper measuring head 4 is a span upper measuring head 13, a sphere structure is arranged at the lower end of the span upper measuring head 13, and the sphere structure of the span upper measuring head 13 can be inserted into a spline tooth socket.

The upper measuring head 4 is a top diameter upper measuring head 16, the lower end of the span upper measuring head 13 is provided with an arc structure, and the arc structure of the span upper measuring head 13 can be attached to the outer surface of the spline.

Measurement principle: when measuring the spline span of the workpiece, adopting the assembly scheme of fig. 2, an operator manually presses down the lever 8, and at the moment, the lever 8 pries the measuring body 3, the upper measuring head 13 of the span and the compression spring 12 to move upwards;

the gauge is inserted into the center hole 6 of the gauge body 5, meanwhile, an operator releases the lever 8 manually, at the moment, the bottom thimble 15 and the sphere of the upper gauge head 13 of the span are propped against the spline tooth socket, as shown in fig. 4, the bottom thimble 15 is a fixed part, the upper gauge head 13 of the span is a movable part, at the moment, the upper gauge head 13 of the span drives the compression spring 12 and the measuring body 3 to displace synchronously, the displacement change is transmitted to the dial indicator 1, and at the moment, the operator records pointer position data of the dial indicator 1.

The operator takes the workpiece to be measured, inserts the spline part of the workpiece into the central hole 6 of the measuring tool body 5, and records the pointer position data of the dial indicator 1 in the same way as the operation steps.

And the first measurement is compared with the span data of the workpiece, so that the span data of the workpiece can be directly read.

Similarly, when measuring the top diameter of the workpiece spline, the assembly scheme of fig. 3 is adopted, except that the upper span gauge head 13 is replaced by the upper top diameter gauge head 16.

The working principle is the same as above, when the gauge is used for calibrating, the arc surface below the upper gauge head 16 on the top diameter is attached to the top diameter of the gauge, the bottom thimble 15 is attached to the tooth socket of the gauge, as shown in fig. 5, and the pointer position data of the dial indicator 1 is read and recorded at the moment.

The pointer position data of the dial indicator 1 is read and recorded, and compared with the top diameter data of the workpiece measured for the first time, the top diameter data of the workpiece can be directly read.

And the span and the top diameter of the steering gear small-modulus spline are rapidly measured, and the measurement efficiency is high.

While the basic principles of the utility model have been shown and described, there are various changes and modifications to the utility model, which fall within the scope of the utility model as hereinafter claimed, without departing from the spirit and scope of the utility model.

Claims (5)

1. The utility model provides a little modulus spline span, top footpath contrast survey utensil, includes amesdial (1), table chuck (2), survey a body (5), goes up gauge head (4) and bottom thimble (15), its characterized in that: the top surface of survey utensil body (5) is provided with upper padding plate (18), fixed through long screw (14) between table chuck (2), upper padding plate (18), survey utensil body (5) three, the amesdial (1) is installed on table chuck (2) to through hexagon socket head cap screw (10) fastening, go up gauge head (4) and wear in survey gauge head up hole (17) of utensil body (5), and go up and be provided with compression spring (12) between gauge head (4) and upper padding plate (18), the upper end threaded connection of going up gauge head (4) has measurement body (3), the lower extreme measuring head of measurement body (3) upper end center and amesdial (1) corresponds, the left side of upper padding plate (18) is provided with lever assembly, the lower terminal surface of survey utensil body (5) is provided with lower bolster (11), bottom thimble (15) set up in survey thimble down hole (19) of utensil body (5), bottom thimble (15) are fixed through the screw.

2. The small modulus spline span, top diameter comparison gauge of claim 1, wherein: the lever assembly comprises a cylindrical pin (7), a lever (8) and a lever supporting block (9), the lever supporting block (9) is fixed on an upper base plate (18), the lever (8) is rotationally connected with the lever supporting block (9) through the cylindrical pin (7), and the right end of the lever (8) corresponds to the measuring body (3).

3. The small modulus spline span, top diameter comparison gauge of claim 1, wherein: the upper measuring head (4) is a span upper measuring head (13), and the lower end of the span upper measuring head (13) is provided with a sphere structure.

4. The small modulus spline span, top diameter comparison gauge of claim 1, wherein: the upper measuring head (4) is a top diameter upper measuring head (16), and the lower end of the span upper measuring head (13) is provided with an arc structure.

5. The small modulus spline span, top diameter comparison gauge of claim 1, wherein: the center of the measuring tool body (5) is provided with a center hole (6), and the center hole (6) is respectively communicated with an upper inner hole (17) of the measuring head and a lower inner hole (19) of the thimble.