CN205245953U - Measuring tool is measured to terminal surface annular diameter - Google Patents

Abstract

The utility model relates to a measuring tool for measuring the diameter of an end face ring groove, which includes a main ruler and a slide rule. There is a compression screw and a vernier on the top, and the vernier is fastened on the slide rule by screws; a compression spring is set between the main ruler and the slide rule; there is a gap of 0.005-0.015 mm between the main ruler and the slide rule. The utility model has the advantages of simple structure, low manufacturing cost, easy operation, flexible movement of the slide rule, shortened measurement time, and improved measurement efficiency; The contact stability of the measured point is good, the measurement accuracy is high, the repeatability is good, and the indication accuracy reaches 0.02 mm. It can be used for measuring the diameter of end face ring grooves of different specifications, and has good versatility.

Description

End ring groove diameter measuring tool

technical field

The utility model relates to a measuring instrument, in particular to a measuring instrument for measuring the diameter of an end face ring groove of a shaft part.

Background technique

Many shaft parts have a narrow annular groove on the end face, and the diameter of the groove needs to be measured. Generally, the groove width is only 2-3mm, and the vernier caliper cannot be measured because the probe is too wide to fit in. If a special measuring tool is designed, one measuring tool can only measure one size, and the cost is too high.

Contents of the invention

The purpose of this utility model is to overcome the shortcomings in the above-mentioned measurement, and provide a measuring tool for measuring the diameter of the ring groove on the end face with simple structure, convenient use and operation, high measurement accuracy and wide measurement range.

The measuring tool for measuring the diameter of the ring groove on the end surface of the utility model includes a main ruler and a sliding rule, and is characterized in that: the fixed clamping foot of the main ruler is provided with a fixed measuring head, and the sliding clamping foot of the sliding ruler is provided with a sliding measuring head ; The slide rule is provided with a compression screw and a vernier, and the vernier is fastened on the slide rule by a screw.

In order to better achieve the above purpose:

A compression spring is arranged between the main scale and the sliding scale.

There is a gap of 0.005-0.015 mm between the main ruler and the sliding ruler.

The fixed measuring head and the sliding measuring head have the same shape, which is a boss type arc measuring head.

The utility model has the advantages of simple structure, low manufacturing cost, easy operation, flexible movement of the slide rule, and short measurement time; the position of the measuring head can be adjusted by pushing the sliding rule, and the contact stability between the measuring head and the measured point is good. , high measurement accuracy, good repeatability, and the indication accuracy reaches 0.02mm. It can be used to measure the diameter of end face ring grooves of different specifications, and has good versatility.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram along the line A-A of Fig. 1 .

In the figure: 1. Main ruler, 2. Slide rule, 3. Vernier, 4. Compression screw, 5. Screw, 6. Compression spring, 7. Fixed measuring head, 8. Sliding measuring head, 11. Fixed card Pin, 22, slide card pin.

detailed description

The measuring tool for measuring the diameter of an end face ring groove of the utility model comprises a main ruler 1 and a sliding ruler 2 . The fixed pin 11 of the main ruler 1 is provided with a fixed probe 7 , and the sliding pin 22 of the slide rule 2 is provided with a sliding probe 8 . A compression screw 4 and a vernier 3 are arranged on the slide rule 2, and the vernier 3 is fastened on the slide rule 2 with a screw 5. A compression spring piece 6 is arranged between the main ruler 1 and the sliding ruler 2 . The gap between main ruler 1 and slide ruler 2 is 0.01mm. The fixed measuring head 7 and the sliding measuring head 8 have the same shape, which are convex-shaped circular arc measuring heads, and the width of the measuring head is B.

When in use, hold the part in the left hand, hold the measuring tool in the right hand, move the slide rule 2 to the right with the thumb of the right hand, and adjust the distance between the main ruler 1 and the slide rule 2 to the position suitable for the measured ring groove. Insert the fixed probe 7 and the sliding probe 8 into the groove of the ring under test, so that the fixed probe 7 of the main scale 1 is close to the part. Move the slider 2 with the thumb of the right hand to the left until the sliding probe 8 of the slider 2 is also close to the part, tighten the compression screw 4, and the value read from the vernier 3 is the outer diameter of the ring groove on the end face of the part to be tested .

On the contrary, if you move the slider 2 to the right until the sliding probe 8 of the slider 2 is also close to the part, read the value from the cursor 3, add this value to the probe width value B, and the result is the The inner diameter value of the ring groove.

Claims (4)

1. an end face annular groove diameter measurement measurer, comprise main scale (1) and slide rule (2), it is characterized in that: the fixing card base (11) of described main scale (1) is provided with fixing gauge head (7), the slip card base (22) of slide rule (2) is provided with slip gauge head (8); Described slide rule (2) is provided with housing screw (4) and vernier (3), and vernier (3) is fixed tightly on slide rule (2) by screw (5).

2. end face annular groove diameter measurement measurer according to claim 1, is characterized in that: between described main scale (1) and slide rule (2), be provided with clamping leaf spring (6).

3. end face annular groove diameter measurement measurer according to claim 1, is characterized in that: between described main scale (1) and slide rule (2), have the gap of 0.005～0.015 millimeter.

4. end face annular groove diameter measurement measurer according to claim 1, is characterized in that: described fixing gauge head (7) and slip gauge head (8) are of similar shape, and is boss type circular arc gauge head.