CN105241359B - The survey cone device of quick measurement male cone (strobilus masculinus) taper - Google Patents

Abstract

The invention belongs to e measurement technology, is related to a kind of survey cone device of quick measurement male cone (strobilus masculinus) taper.The present invention is made up of interior survey cylinder (7), spring (2), exterior measuring cylinder (3) and spacer pin (4).The present invention proposes a kind of survey cone device that can quickly measure male cone (strobilus masculinus) taper, simplifies detection process, shortens the cycle, substantially increases detection efficiency.

Description

A Cone Meter for Quickly Measuring the Conicity of Outer Cone Surfaces

technical field

The invention belongs to the measurement technology, and relates to a cone measuring device for quickly measuring the taper of an outer cone surface.

Background technique

When the taper of the outer tapered surface on the part is detected in the batch production of some aviation parts, the detection process takes a long time, resulting in low detection efficiency. At present, the measurement of the taper of the outer cone surface on the part is usually to make a standard ring gauge, apply the revealing agent on the surface of the cone surface of the part, and judge the processing of the taper by observing the condition of the remaining revealing agent on the measured cone surface through the contact between the two. quality. The detection process of these methods is complicated, the cycle is long, and the efficiency is low, so it is difficult to apply to online real-time rapid measurement in batch production. Therefore, in production practice, there is an urgent need for a measuring tool that can quickly and conveniently detect the taper of the outer taper surface on the part.

Contents of the invention

The object of the present invention is to propose a cone measuring device capable of quickly measuring the taper of the outer cone surface, so as to simplify the detection process, shorten the cycle and improve the detection efficiency.

The technical solution of the present invention is: a cone measuring device for measuring the taper of the outer cone surface, which is characterized in that it is composed of an inner measuring cylinder 7, a spring 2, an outer measuring cylinder 3 and a limit pin 4;

A. The inner measuring cylinder 7 has the shape of a stepped shaft. The left section of the inner measuring cylinder 7 is a measuring handle 7a made of a solid cylinder, and the right section of the inner measuring cylinder 7 is a hollow cylinder 7b. The outer diameter of the measuring handle 7a is smaller than the hollow cylinder. The outer diameter of the cylinder 7b, the central inner hole 7c of the hollow cylinder 7b is a blind hole opened on the right end surface of the inner measuring cylinder 7, and there is a hole extending radially and axially on the outer cylindrical surface of the hollow cylinder 7b. An oblong limiting groove 7d, the limiting groove 7d is vertically connected with the central inner hole 7c of the hollow cylinder 7b;

B. The outer measuring cylinder 3 is a cylinder with an open right end. The left end of the outer measuring cylinder 3 has a central hole. The aperture of the central hole is smaller than the aperture of the inner hole of the outer measuring cylinder 3. 7b is located in the inner hole of the outer measuring cylinder 3 and maintains a clearance fit. The measuring handle 7a of the left section of the inner measuring cylinder 7 passes through the center hole of the left end surface of the outer measuring cylinder 3 to the left, and the measuring handle 7a and the left end surface of the outer measuring cylinder 3 The center hole of the outer measuring cylinder 3 has clearance fit, and there is a radially penetrating limit pin hole on the outer cylindrical surface of the outer measuring cylinder 3. The middle part of the limiting pin 4 penetrates into the limiting groove 7d of the inner measuring cylinder 7 and maintains a sliding gap. The two ends of the position pin 4 are located in the limit pin hole of the outer measuring cylinder 3 and maintain an interference fit;

C. The spring 2 is set on the measuring handle 7a of the left section of the inner measuring cylinder 7, the left end of the spring 2 withstands the bottom surface of the inner hole of the outer measuring cylinder 3, and the right end of the spring 2 withstands the step end surface of the inner measuring cylinder 7, before starting the measurement , the right end surface of the outer measuring cylinder 3 is located on the right side of the right end surface of the inner measuring cylinder 7;

D. On the cylindrical surface of the measuring handle 7a, there are two annular, mutually parallel detection marking lines, which are respectively: the left detection marking line 7e on the left and the right detection marking line 7f on the right, where the left detection marking line 7e is The plane is perpendicular to the axis of the inner measuring cylinder 7, and the distance L4 from the left detection mark line 7e to the right end surface of the inner measuring cylinder 7 is calculated according to the following formula:

L ₄ ＝L ₂ -[0.5×(d ₁ -d ₂ )÷tanγ ₁ ]……………………………………[1]

γ ₁ =0.5×(β+λ)…………………………………………[2]

In the formula: d ₁ is the inner diameter of the outer measuring cylinder 3, d ₂ is the inner diameter of the inner hole 7c in the center of the inner measuring cylinder 1, β is the nominal value of the taper angle of the outer tapered surface 6a on the tested piece 6, and λ is the outer tapered surface 6a The absolute value of the upper or lower deviation of the cone angle, the cone angle size of the outer cone surface 6a is expressed as β ± λ, L ₂ is the length of the outer measuring cylinder 3, γ ₁ is the cone of the inner cone surface 6a on the measured piece 6 One-half of the maximum value of the angle angle;

Calculate the distance L ₅ from the right detection mark line 7f to the right end surface of the inner cylinder 7 according to the following formula:

L ₅ ＝L ₂ -[0.5×(d ₁ -d ₂ )÷tanγ ₂ ]……………………………………[3]

γ ₂ =0.5×(β－λ)……………………………………………[4]

In the formula: d ₁ is the inner diameter of the outer measuring cylinder 3, d ₂ is the inner diameter of the inner hole 7c in the center of the inner measuring cylinder 1, β is the nominal value of the taper angle of the outer tapered surface 6a on the tested piece 6, and λ is the outer tapered surface 6a The absolute value of the upper or lower deviation of the cone angle, the cone angle size of the outer cone surface 6a is expressed as β ± λ, L ₂ is the length of the outer measuring cylinder 3, and γ ₂ is the cone of the inner cone surface 6a on the measured piece 6 Angle One-half the minimum value of the angle.

The invention has the advantages of providing a cone measuring device capable of quickly measuring the taper of the outer cone surface, which simplifies the detection process, shortens the period and greatly improves the detection efficiency. According to an embodiment of the present invention, the test proves that the detection efficiency is increased by more than 10 times.

Description of drawings

Figure 1 is a schematic diagram of the structure of a cone measuring instrument used for measuring the outer cone surface.

Fig. 2 is a schematic diagram of the structure of the tested part with the outer tapered surface in the embodiment.

detailed description

The present invention will be described in further detail below. Referring to Fig. 1, a kind of cone measuring device for measuring the conicity of the outer cone surface is characterized in that it is composed of an inner measuring cylinder 7, a spring 2, an outer measuring cylinder 3 and a limit pin 4;

A. The inner measuring cylinder 7 has the shape of a stepped shaft. The left section of the inner measuring cylinder 7 is a measuring handle 7a made of a solid cylinder, and the right section of the inner measuring cylinder 7 is a hollow cylinder 7b. The outer diameter of the measuring handle 7a is smaller than the hollow cylinder. The outer diameter of the cylinder 7b, the central inner hole 7c of the hollow cylinder 7b is a blind hole opened on the right end surface of the inner measuring cylinder 7, and there is a hole extending radially and axially on the outer cylindrical surface of the hollow cylinder 7b. 7d, oblong limiting groove 7d, the limiting groove 7d is vertically connected with the central inner hole 7c of the hollow cylinder 7b;

B. The outer measuring cylinder 3 is a cylinder with an open right end. The left end of the outer measuring cylinder 3 has a central hole. The aperture of the central hole is smaller than the aperture of the inner hole of the outer measuring cylinder 3. 7b is located in the inner hole of the outer measuring cylinder 3 and maintains a clearance fit. The measuring handle 7a of the left section of the inner measuring cylinder 7 passes through the center hole of the left end surface of the outer measuring cylinder 3 to the left, and the measuring handle 7a and the left end surface of the outer measuring cylinder 3 The center hole of the outer measuring cylinder 3 has clearance fit, and there is a radially penetrating limit pin hole on the outer cylindrical surface of the outer measuring cylinder 3. The middle part of the limiting pin 4 penetrates into the limiting groove 7d of the inner measuring cylinder 7 and maintains a sliding gap. The two ends of the position pin 4 are located in the limit pin hole of the outer measuring cylinder 3 and maintain an interference fit;

C. The spring 2 is set on the measuring handle 7a of the left section of the inner measuring cylinder 7, the left end of the spring 2 withstands the bottom surface of the inner hole of the outer measuring cylinder 3, and the right end of the spring 2 withstands the step end surface of the inner measuring cylinder 7, before starting the measurement , the right end surface of the outer measuring cylinder 3 is located on the right side of the right end surface of the inner measuring cylinder 7;

D. On the cylindrical surface of the measuring handle 7a, there are two annular, mutually parallel detection marking lines, which are respectively: the left detection marking line 7e on the left and the right detection marking line 7f on the right, where the left detection marking line 7e is The plane is perpendicular to the axis of the inner measuring cylinder 7, and the distance L4 from the left detection mark line 7e to the right end surface of the inner measuring cylinder 7 is calculated according to the following formula:

L ₄ ＝L ₂ -[0.5×(d ₁ -d ₂ )÷tanγ ₁ ]……………………………………[1]

γ ₁ =0.5×(β+λ)…………………………………………[2]

In the formula: d ₁ is the inner diameter of the outer measuring cylinder 3, d ₂ is the inner diameter of the inner hole 7c in the center of the inner measuring cylinder 1, β is the nominal value of the taper angle of the outer tapered surface 6a on the tested piece 6, and λ is the outer tapered surface 6a The absolute value of the upper or lower deviation of the cone angle, the cone angle size of the outer cone surface 6a is expressed as β ± λ, L ₂ is the length of the outer measuring cylinder 3, γ ₁ is the cone of the inner cone surface 6a on the measured piece 6 half the value of the maximum value of the angle angle;

Calculate the distance L ₅ from the right detection mark line 7f to the right end surface of the inner cylinder 7 according to the following formula:

L ₅ ＝L ₂ -[0.5×(d ₁ -d ₂ )÷tanγ ₂ ]……………………………………[3]

γ ₂ =0.5×(β－λ)……………………………………………[4]

In the formula: d ₁ is the inner diameter of the outer measuring cylinder 3, d ₂ is the inner diameter of the inner hole 7c in the center of the inner measuring cylinder 1, β is the nominal value of the taper angle of the outer tapered surface 6a on the tested piece 6, and λ is the outer tapered surface 6a The absolute value of the upper or lower deviation of the cone angle, the cone angle size of the outer cone surface 6a is expressed as β ± λ, L ₂ is the length of the outer measuring cylinder 3, and γ ₂ is the cone of the inner cone surface 6a on the measured piece 6 The half value of the minimum value of the angle angle.

The using method of the present invention is: when measuring the cone angle β (±λ) of the outer cone surface 6a on the measured piece 6, pass through the inner hole of the outer measuring cylinder 3, the inner hole of the hollow cylinder 7b and the outer cone to be detected. The corresponding diameters of the surfaces 6a are in contact with each other, and the taper measurement can be realized by monitoring the distance difference between the two end surfaces during contact.

The measurement process of the present invention is:

When measuring the outer taper size β (±λ), when the outer tapered surface 6a on the test piece 6 enters the measurement position, first the inner hole on the right end surface of the hollow cylinder 7b of the inner measuring cylinder 7 corresponds to the outer tapered surface 6a (with The inner hole of the right end surface of the hollow cylinder 7b has the same size), and the outer measuring cylinder 3 is pushed by hand so that the inner hole of the right end surface is in contact with the corresponding outer cone surface 6a (the same size as the inner hole of the right end of the outer measuring cylinder 3). This moment outer measuring tube 3 can't move to the right again. Observe the relative position of the left end surface of the outer measuring cylinder 3 and the left detection mark line 7e and the right detection mark line 7f, when the left end surface of the outer measurement cylinder 3 is between the left detection mark line 7e and the right detection mark line 7f, it can be determined The taper size value of the outer tapered surface 6a meets the requirement of β(±λ), that is, the taper is qualified. When the left end surface of the outer measuring cylinder 3 is on the side of the left detection mark line 7e and the right detection mark line 7f, it can be determined that the taper size value of the outer tapered surface 6a to be tested does not meet the requirements of β (±λ), that is, the taper is unqualified; When the left end face of the outer measuring cylinder 3 is on the left side of the left detection mark line 7e, the actual taper size value is greater than (β+λ); when the left end face of the outer measuring cylinder 3 is on the right side of the right detection mark line 7f, the actual taper size value is less than ( β-λ).

Example

There is an outer cone surface structure on the end cover of a certain sensor, see Figure 2, the taper size of the outer cone surface is 60°±30′, when testing it, the relevant parameters of the cone measuring device are as follows:

γ ₁ =0.5×(60°+30′)=30.25°;

γ ₂ =0.5×(60°−30′)=29.75°.

Select d ₁ =30mm, d ₂ =18mm, L ₂ =50mm, the values of L ₄ and L ₅ are calculated as follows:

L4＝50－[0.5×(30-18)÷tan(30.25)]＝ _39.712mm ;

L ₅ =L ₂ -[0.5×(30-18)÷tan(29.75)]=39.502mm.

When measuring the outer taper size of 60°±30′, the outer taper surface on the sensor end cover enters the measurement position, first the inner hole φ18 on the right end surface of the hollow cylinder 7b of the inner measuring cylinder 7 corresponds to the outer taper surface (with the hollow cylinder 7b the same size of the inner hole on the right end face), and push the outer measuring cylinder 3 by hand, so that the inner hole φ30 on the right end face is in contact with the corresponding outer cone surface (the same size as the inner hole at the right end of the outer measuring cylinder 3). Cylinder 3 can no longer be moved to the right. Observe the relative positions of the left end surface of the outer measuring cylinder 3 and the left detection mark line 7e and the right detection mark line 7f, when the left end surface of the outer measurement cylinder 3 is between the left detection mark line 7e and the right detection mark line 7f, it can be determined The taper dimension value of the outer taper surface meets the requirement of 60°±30′, that is, the taper is qualified. When the left end surface of the outer measuring cylinder 3 is on the side of the left detection mark line 7e and the right detection mark line 7f, it can be determined that the taper size value of the outer cone surface to be tested does not meet the requirement of 60°±30′, that is, the taper is unqualified; When the left end face of the cylinder 3 is on the left side of the left detection mark line 7e, the actual taper size value is greater than (60°+30′); when the left end face of the outer measuring cylinder 3 is on the right side of the right detection mark line 7f, the actual taper size value is less than ( 60°-30').

Claims (1)

1. a kind of survey cone device for being used to measure male cone (strobilus masculinus) taper, it is characterised in that it is by interior survey cylinder (7), spring (2), exterior measuring cylinder (3) formed with spacer pin (4)；

A, interior cylinder (7) of surveying has the profile of Step Shaft, and left section of interior survey cylinder (7) is the measurement handle (7a) that solid cylinder is formed, Interior survey cylinder (7) right section is hollow cylinder (7b), and the external diameter of measurement handle (7a) is less than the external diameter of hollow cylinder (7b), hollow cylinder The central bore (7c) of (7b) is to be opened on the blind hole of interior survey cylinder (7) right side, is had on hollow cylinder (7b) external cylindrical surface In the center of stopper slot (7d) radially penetrate, axially extended, Long Circle, stopper slot (7d) and hollow cylinder (7b) Hole (7c) vertically through；

B, exterior measuring cylinder (3) is the unlimited cylinder of a right-hand member, and exterior measuring cylinder (3) left side carries centre bore, the aperture of the centre bore Less than the aperture of exterior measuring cylinder (3) endoporus, the interior hollow cylinder (7b) for surveying right section of cylinder (7) is located in the endoporus of exterior measuring cylinder (3) and protected Gap cooperation is held, the interior measurement handle (7a) for surveying left section of cylinder (7) passes to the left from the centre bore of exterior measuring cylinder (3) left side, measures handle (7a) and the center interporal lacuna of exterior measuring cylinder (3) left side coordinate, and have the limit radially penetrated on the external cylindrical surface of exterior measuring cylinder (3) Position pin-and-hole, it is through in the middle part of spacer pin (4) in the stopper slot (7d) of interior survey cylinder (7) and keeps glade plane space, the two of spacer pin (4) End is in the limit pin hole of exterior measuring cylinder (3) and keeps being interference fitted；

C, spring (2) set is surveyed on the measurement handle (7a) of left section of cylinder (7) inside, and the left end of spring (2) withstands exterior measuring cylinder (3) endoporus Bottom surface, the right-hand member of spring (2) withstands the step end face of interior survey cylinder (7), and before starting measurement, the right side of exterior measuring cylinder (3) is positioned at interior Survey the right of cylinder (7) right side；

D, there are two detection mark lines that are annular, being parallel to each other on the face of cylinder of measurement handle (7a), be respectively：Positioned at the left side Left detection mark line (7e) and the right detection mark line (7f) positioned at the right, the plane where left detection mark line (7e) it is vertical In the axis of interior survey cylinder (7), left detection mark line (7e) is calculated to the distance of interior survey cylinder (7) right side according to following formula L4：

L₄=L₂-[0.5×(d₁-d₂)÷tanγ₁]…………………………………………[1]

γ₁=0.5 × (β+λ) ... ... ... ... ... ... ... ... ... ... ... [2]

In formula：d₁It is exterior measuring cylinder（3）Internal diameter, d₂It is interior survey cylinder（1）Central bore（7c）Internal diameter, β is measured piece（6）It is upper outer The conical surface（6a）The nominal value of coning angle, λ are male cone (strobilus masculinus)s（6a）The upper deviation of cone angle or the absolute value of lower deviation, male cone (strobilus masculinus)（6a） Cone angle size be expressed as β ± λ, L₂It is exterior measuring cylinder（3）Length, γ₁It is measured piece（6）Upper inner conical surface（6a）Angle of taper The half value of maximum；

Right detection mark line is calculated according to following formula（7f）To interior survey cylinder（7）The distance L of right side₅：

L₅=L₂-[0.5×(d₁-d₂)÷tanγ₂]…………………………………………[3]

γ₂=0.5 × (β-λ) ... ... ... ... ... ... ... ... ... ... ... [4]

In formula：d₁It is exterior measuring cylinder（3）Internal diameter, d₂It is interior survey cylinder（1）Central bore（7c）Internal diameter, β is measured piece（6）It is upper outer The conical surface（6a）The nominal value of coning angle, λ are male cone (strobilus masculinus)s（6a）The upper deviation of cone angle or the absolute value of lower deviation, male cone (strobilus masculinus)（6a） Cone angle size be expressed as β ± λ, L₂It is exterior measuring cylinder（3）Length, γ₂It is measured piece（6）Upper inner conical surface（6a）Angle of taper The half value of minimum value.