CN210108261U

CN210108261U - Elastic measuring head for measuring aperture

Info

Publication number: CN210108261U
Application number: CN201921098995.4U
Authority: CN
Inventors: 郑双飞
Original assignee: Wuxi Vgage Measuring Equipment Co Ltd
Current assignee: Wuxi Wannaite Automation Equipment Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-02-21
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses an elasticity gauge head for aperture measurement aims at providing an elasticity material's measuring gauge head, and cooperation sensor is measured, has realized the gauge head of the electron measurement advantage in some minor diameter apertures, and the effectual irreplaceability of having avoided micro sensor reduces sensor cost. The measuring device is characterized in that a fixing part, a connecting part and a measuring part are sequentially and integrally designed, a sensing part is perpendicular to the connecting part, the inner diameters of the connecting part and the measuring part are larger than that of the fixing part, an elastic part is arranged between the fixing part and the connecting part, a detecting head is arranged on the measuring part, a sensor is arranged on one side of the sensing part, a sensor is arranged on the sensor, and the sensor props against the end part of the sensing part; the fixing seat is further provided with an air cylinder and an ejector rod, the air cylinder and the ejector rod are located between the fixing seat and the sensor, a lever of the air cylinder is arranged towards the sensing portion and located in the middle section of the sensing portion, the ejector rod is installed on an air cylinder rod, and the ejector rod abuts against the sensing portion.

Description

Elastic measuring head for measuring aperture

Technical Field

The utility model belongs to the detection field especially relates to an elasticity gauge head for aperture is measured.

Background

For the measurement of the diameter of the hole, there are measurement methods such as direct measurement, indirect measurement, and comprehensive measurement. Aperture measurement is one of the main contents of the length metering technique.

At present, chinese patent publication No. CN107389017A discloses a three-point aperture measuring instrument, which includes a ruler frame, a ruler body and measuring rods, wherein the ruler body is slidably disposed in the ruler frame, three measuring rods with the same length are circumferentially and uniformly disposed at the front end of the ruler frame, the inner end of each measuring rod is hinged in the ruler frame, each measuring rod is connected to the ruler body extending out of the front end of the ruler frame through an opening and closing mechanism, the opening and closing mechanism closes the measuring rod to the minimum aperture measuring position corresponding to the maximum extending amount of the measuring rod at the front end of the ruler frame, the opening and closing mechanism opens the measuring rod to the maximum aperture measuring position corresponding to the minimum extending amount of the measuring rod at the front end of the ruler frame, and a digital display device is disposed on the ruler frame for converting the retracting amount of the ruler body into the aperture measuring size of the measuring rod.

For some electronic measurements of aperture, it is traditionally simple to select a micro-sensor with high cost, in case the sensor with relatively low cost cannot be selected due to the limitation of aperture size. While microsensors are advantageous in size, they have several disadvantages. Such as: 1. the price is high, and the shelf life is long; 2. the grade difference is prevented, the cutting fluid is sensitive to media such as cutting fluid, oil, water and the like, and the use environment is limited; 3. the sensor measuring head directly contacts the workpiece and is easy to be damaged by collision. Based on the above situation, a measuring head structure using an elastic material is developed, and a measuring scheme of a common sensor is matched.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an elasticity gauge head for aperture measurement aims at providing one kind and utilizes the gauge head that elastic material measured, and the cooperation sensor is measured, has realized the gauge head of the electron measurement advantage in some minor diameter apertures, and the effectual irreplaceability of having avoided micro sensor reduces sensor cost.

The purpose of the utility model can be realized through the following technical scheme:

an elastic measuring head for measuring aperture comprises a measuring head sleeve, a fixed seat, an elastic measuring head, a measuring element and a sensor, wherein the measuring head sleeve is integrally a hollow cylinder, the fixed seat is positioned at the central position of the measuring head sleeve and is fixedly connected with the measuring head sleeve, the elastic measuring head is arranged on the fixed seat, the elastic measuring head comprises a fixed part, a connecting part, a measuring part and a sensing part, the fixed part, the connecting part and the measuring part are sequentially and integrally designed, the sensing part and the connecting part are vertically arranged, the inner diameters of the connecting part and the measuring part are larger than that of the fixed part, the elastic part is arranged between the fixed part and the connecting part, the measuring part is provided with the measuring head, the sensor is arranged on one side of the sensing part, the measuring element is arranged on the sensing part;

the fixed seat is further provided with an air cylinder and an ejector rod, the air cylinder and the ejector rod are located between the fixed seat and the sensor, a lever of the air cylinder is arranged towards the sensing part and is located in the middle section of the sensing part, the ejector rod is installed on an air cylinder rod, and the ejector rod abuts against the sensing part.

Preferably, one side of the measuring part, which is close to the fixed seat, is provided with a groove, the position, corresponding to the groove, of the fixed seat is also provided with a groove, and a spring is installed in the groove.

Preferably, one end of the ejector rod, which is far away from the cylinder, is an arc surface, and the arc surface abuts against the sensing part.

Preferably, the cylinder is in threaded connection with the ejector rod.

Preferably, the fixing portion is fixed to the fixing base by a bolt.

Preferably, at least two groups of elastic measuring heads are arranged on the circumference of the fixed seat.

Preferably, an inclined plane is arranged at the end part of the fixed seat.

The utility model has the advantages that:

the electronic measurement of some small-diameter apertures is realized by utilizing the elastic measuring head structure of the elastic material to be matched with the measurement of the sensor, the irreplaceability of the miniature sensor is effectively avoided, and the cost of the sensor is reduced.

Drawings

Fig. 1 is a schematic diagram of the internal cross-section structure of the elastic measuring head.

In the figure, the position of the upper end of the main shaft,

1. a head measuring sleeve; 2. a fixed seat;

3. an elastic probe; 31. a fixed part; 32. a connecting portion; 33. a measuring section; 34. a sensing section; 35. an elastic portion;

4. measuring the seeds; 5. a sensor; 6. a detection head; 7. a cylinder; 8. a top rod; 10. a bolt; 11. a spring.

Detailed Description

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

Example 1: an elastic measuring head for measuring aperture, as shown in figure 1, comprises a measuring head sleeve 1, a fixed seat 2, an elastic measuring head 3, a measuring element 4 and a sensor 5, the whole body of the head measuring sleeve 1 is a hollow cylinder, the fixed seat 2 is positioned at the central position of the head measuring sleeve 1, the measuring head is fixedly connected with the measuring head sleeve 1, the elastic measuring head 3 is arranged on the fixed seat 2, the elastic measuring head 3 comprises a fixed part 31, a connecting part 32, a measuring part 33 and a sensing part 34, the fixing portion 31, the connecting portion 32 and the measuring portion 33 are integrally designed in sequence, the sensing portion 34 is arranged perpendicular to the connecting portion 32, the inner diameters of the connecting part 32 and the measuring part 33 are larger than that of the fixing part 31, an elastic part 35 is arranged between the fixing part 31 and the connecting part 32, the measuring part 33 is provided with a detecting head 6, the sensor 5 is arranged at one side of the sensing part 34, the sensor is provided with a detector 4, and the detector 4 is propped against the end part of the sensing part 34;

still be equipped with cylinder 7 and ejector pin 8 on the fixing base 2, cylinder 7 and ejector pin 8 are located between fixing base 2 and the sensor 5 its lever of cylinder 7 sets up towards sensing portion 34, is located the setting of sensing portion 34 middle section, ejector pin 8 is installed on cylinder 7 pole, and ejector pin 8 withstands sensing portion 34 and sets up.

Preferably, one side of the measuring part 33 close to the fixed seat 2 is provided with a groove, the position of the fixed seat 2 corresponding to the groove is also provided with a groove, and the groove is internally provided with a spring 11.

Preferably, one end of the ejector rod 8, which is far away from the cylinder 7, is an arc surface, and the arc surface abuts against the sensing part 34.

Preferably, the cylinder 7 is connected with the ejector rod 8 through threads.

Preferably, the fixing portion 31 is fixed to the fixing base 2 by a bolt 10.

Preferably, at least two groups of elastic measuring heads 3 are arranged on the circumference of the fixed seat 2.

Preferably, an inclined plane is arranged at the end of the fixed seat 2.

Before measurement, the ejector rod 8 is abutted against the sensing part 34 under the action of the rod of the cylinder 7, the elastic part 35 is extruded, the measuring part 33 is abutted against the spring 11, the spring 11 is compressed, and the detection head 6 is in a contraction state;

during measurement, the end part of the fixed seat 2 extends into a detected pipeline, the air cylinder 7 contracts, the ejector rod 8 is separated from the sensing part 34, the elastic part 35 and the spring 11 reset, the detection head 6 extends out of the fixed seat 2 and contacts the inside of the measured pipeline, and the inner diameter of the pipeline is detected through the sensor 5 and the detector 4;

after the measurement is finished, the air cylinder 7 extends out, the detection head 6 retracts, the pipeline to be measured is drawn out, and the measurement is finished.

The electronic measurement of some small-diameter apertures is realized by utilizing the structure of the elastic measuring head 3 made of elastic materials and matching the measurement of the sensor 5, the irreplaceability of the micro sensor 5 is effectively avoided, and the cost of the sensor 5 is reduced.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, and it is intended that the appended claims cover such modifications and equivalents as fall within the true spirit and scope of the invention.

Claims

1. An elastic probe for measuring an aperture, characterized in that: comprises a measuring head sleeve (1), a fixed seat (2), an elastic measuring head (3), a measuring element (4) and a sensor (5), wherein the whole measuring head sleeve (1) is a hollow cylinder, the fixed seat (2) is positioned at the central position of the measuring head sleeve (1) and is fixedly connected with the measuring head sleeve (1), the elastic measuring head (3) is arranged on the fixed seat (2), the elastic measuring head (3) comprises a fixed part (31), a connecting part (32), a measuring part (33) and a sensing part (34), the fixed part (31), the connecting part (32) and the measuring part (33) are sequentially designed into a whole, the sensing part (34) is perpendicular to the connecting part (32), the inner diameters of the connecting part (32) and the measuring part (33) are larger than the inner diameter of the fixed part (31), an elastic part (35) is arranged between the fixed part (31) and the connecting part (32), and the measuring part (33) is provided with a detecting, the sensor (5) is arranged on one side of the sensing part (34), a detector (4) is arranged on the sensor (5), and the detector (4) is propped against the end part of the sensing part (34);

the sensor is characterized in that the fixing seat (2) is further provided with a cylinder (7) and an ejector rod (8), the cylinder (7) and the ejector rod (8) are located between the fixing seat (2) and the sensor (5), a cylinder rod of the cylinder (7) is arranged towards the sensing part (34) and is located in the middle section of the sensing part (34), the ejector rod (8) is installed on the cylinder rod, and the ejector rod (8) abuts against the sensing part (34).

2. A resilient probe for aperture measurement according to claim 1, wherein: the measuring part (33) is provided with a groove on one side close to the fixed seat (2), the fixed seat (2) is also provided with a groove corresponding to the groove, and the groove is internally provided with a spring (11).

3. A resilient probe for aperture measurement according to claim 1, wherein: one end of the ejector rod (8) departing from the air cylinder (7) is an arc surface, and the arc surface is abutted against the sensing part (34).

4. A resilient probe for aperture measurement according to claim 1, wherein: the cylinder (7) is connected with the ejector rod (8) through threads.

5. A resilient probe for aperture measurement according to claim 1, wherein: the fixing part (31) is fixed on the fixing seat (2) through a bolt (10).

6. A resilient probe for aperture measurement according to claim 1, wherein: the elastic measuring head (3) is at least provided with two groups on the circumference of the fixed seat (2).

7. A resilient probe for aperture measurement according to claim 3, wherein: the end part of the fixed seat (2) is provided with an inclined plane.