Inner diameter detection instrument adaptive to various apertures

Abstract

The utility model relates to the technical field of inner diameter detection, and particularly discloses an inner diameter detection instrument adaptive to various apertures, which comprises a detection main body, a plurality of sliding seats are slidably mounted in the detection main body, the sliding seats are rotatably connected with a plurality of connecting rods, the connecting rods are rotatably connected with a sensor fixing seat through a rotating shaft, and the sensor fixing seat is rotatably connected with the detection main body. An optical sensor is mounted on each sensor fixing seat, a corrugated pipe joint is mounted at the front end of the detection main body, a guide rod is connected between the sensor fixing seats, and a fixing seat through hole for the sensor fixing seats to extend out is formed in the side surface of the detection main body. According to the utility model, the sliding seat and the connecting rod are arranged to cooperate with the sensor fixing seat to perform telescopic motion, the high-precision optical sensor can cooperate with and control the host to measure the inner diameter size, the measurement range is wider, the test precision is higher, continuous distance measurement can be realized, the application range is wider, and the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of inner diameter detection, in particular to an inner diameter detection instrument adapted to multiple apertures. Background Art

[0002] In the machinery industry such as extruders, it is usually necessary to measure the inner diameter of the barrel to analyze the inner diameter size and obtain the wear data of the barrel inner diameter. In the past, the inner diameter measurement was basically done manually using an internal diameter micrometer. The disadvantage of this method is that the depth of the measuring hole is limited, the efficiency is low, and continuous distance measurement cannot be achieved.

[0003] After searching, the Chinese utility model patent with patent application number CN201720256104.8 discloses an extruder barrel inner diameter measuring instrument, which includes a probe, a host computer connected to the probe for data acquisition, a rangefinder connected to the host computer, and a host computer connected to the host computer. The probe includes a probe assembly, a guide wheel group, and a distance measuring reflective sticker. The probe assembly is provided with a coil winding. The probe assembly is also provided with multiple sensors, which are eddy current displacement sensors. The sensors are connected to the host computer via cables. The guide wheel group is provided on the probe to assist the probe assembly in moving within the barrel. The distance measuring reflective sticker is provided at the tail of the probe. The extruder barrel inner diameter measuring instrument can directly check the condition of the integrated barrel on the extruder production line; there is no need to disassemble the barrel one by one during measurement, and the data processing technology of the host computer and the host computer is used to detect the inner bore wear condition of the extruder throughout the process, which can save valuable time and maximize benefits.

[0004] Another example is a Chinese utility model patent application numbered CN202120762724.5, which discloses a screw barrel inner diameter measuring tool. The tool comprises a measuring barrel, wherein a fixed shaft is fixedly connected between the inner walls of the measuring barrel, two rotating rods are rotatably connected to the fixed shaft, and each of the rotating rods is fixedly connected to a connecting rod at both ends. An inner diameter measuring device is provided on the side wall of one end of the measuring barrel, and a pull rod is fixedly connected to the side wall of the two connecting rods on the left side, and a handle is fixedly connected to one end of each pull rod. This screw barrel inner diameter measuring tool has a reasonable design and an ingenious concept. It can quickly measure the inner diameter data of various locations in the screw barrel, is highly convenient, and is easy to promote.

[0005] Although the existing barrel inner diameter measuring instrument can meet the basic inner diameter requirements, it cannot adapt to the measurement of different apertures and has a small scope of application. The barrel inner diameter measuring tool needs to be measured by a measuring ruler, and the measurement data is prone to errors and has low efficiency. Utility Model Content

[0006] The technical problem to be solved by the present invention is that, in response to the above-mentioned defects of the prior art, an inner diameter detection instrument suitable for a variety of apertures is provided. A slide and a connecting rod are arranged to cooperate with a sensor fixing seat to perform telescopic movement. A high-precision optical sensor can be used in conjunction with a control host to measure the inner diameter size. The measurement range is wider and products with a diameter of less than 40 mm can be measured. The test accuracy is high and continuous distance measurement can be achieved. The scope of application is wide and the efficiency is high.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] An inner diameter detection instrument suitable for various apertures includes a detection body, a plurality of slides are slidably installed in the detection body, the slides are rotatably connected to a plurality of connecting rods, the connecting rods are rotatably connected to a sensor fixing seat via a rotating shaft, an optical sensor is installed on the sensor fixing seat, a bellows joint is installed at the front end of the detection body, a guide rod is connected between the sensor fixing seats, and a fixing seat through hole is opened on the side of the detection body for the sensor fixing seat to extend out.

[0009] Preferably, a plurality of sliding inner rods are provided on the inner side of the detection body, a plurality of inner rod through holes adapted to the sliding inner rods are opened on the sliding seat, and the sliding seat is slidably mounted on the sliding inner rods.

[0010] Preferably, the slide includes a first slide and a second slide, the connecting rod includes a first connecting rod group, a second connecting rod group, a third connecting rod group and a fourth connecting rod group, the first slide is rotatably connected to the first connecting rod group and the second connecting rod group respectively, and the second slide is rotatably connected to the third connecting rod group and the fourth connecting rod group respectively.

[0011] Preferably, the sensor fixing seat includes a first sensor fixing seat and a second sensor fixing seat that are symmetrically arranged with each other, the first sensor fixing seat is rotatably connected to the first connecting rod group and the fourth connecting rod group respectively, and the second sensor fixing seat is rotatably connected to the second connecting rod group and the third connecting rod group respectively.

[0012] Preferably, the guide rods include a plurality of upper guide rods and lower guide rods, and the sensor fixing seat is provided with guide rod through holes adapted to the upper guide rods and the lower guide rods.

[0013] Preferably, a sensor mounting groove is provided at the front end of the sensor fixing seat, and the optical sensor is mounted on the sensor mounting groove.

[0014] By adopting the above technical scheme, the utility model provides an inner diameter detection instrument that is suitable for a variety of apertures, which has the following beneficial effects: a plurality of slides are slidably installed in the detection body of the inner diameter detection instrument, and the slides are rotatably connected to a plurality of connecting rods, and the connecting rods are rotatably connected to the sensor fixing seat through a rotating shaft, and the sensor fixing seat is installed with an optical sensor, and a bellows joint is installed at the front end of the detection body, and a guide rod is connected between the sensor fixing seats. A fixing seat through hole for the sensor fixing seat to extend is provided on the side of the detection body, and the slides and connecting rods are arranged to cooperate with the sensor fixing seat to perform telescopic movement. By using a high-precision optical sensor and cooperating with an external control host, the measurement range is wider, and products with a diameter of less than 40mm can be measured, and the test accuracy is high, and the diameter data or three-dimensional grid data and internal imaging functions are realized every 1-3mm, and continuous distance measurement can be achieved, with a wide range of applications and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded view of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the use state of the utility model;

[0018] In the figure, 1-detection body, 2-slide, 3-connecting rod, 4-rotating shaft, 5-sensor fixing seat, 6-optical sensor, 7-bellows joint, 8-guide rod, 9-fixing seat through hole, 10-sliding inner rod, 11-inner rod through hole, 12-first slide, 13-second slide, 14-first connecting rod group, 15-second connecting rod group, 16-third connecting rod group, 17-fourth connecting rod group, 18-first sensor fixing seat, 19-second sensor fixing seat, 20-upper guide rod, 21-lower guide rod. DETAILED DESCRIPTION

[0019] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0022] like Figure 1-3 As shown, the internal diameter detection instrument adapted for various apertures includes a detection body 1, within which a plurality of slides 2 are slidably mounted. The slides 2 are rotatably connected to a plurality of connecting rods 3, which are rotatably connected to a sensor holder 5 via a rotating shaft 4. An optical sensor 6 is mounted on the sensor holder 5. A bellows joint 7 is mounted at the front end of the detection body 1. A guide rod 8 is connected between the sensor holders 5. The side of the detection body 1 is provided with a holder through-hole 9 through which the sensor holder 5 extends. It is understood that the optical sensor 6 can be a general optical measurement sensor, etc.; the internal diameter detector is used for deep hole internal diameter detection and internal diameter size analysis in the machinery industry, and is primarily used for wear data detection of barrel internal diameters in the extruder industry.

[0023] Specifically, a plurality of sliding inner rods 10 are provided on the inner side of the detection body 1, and a plurality of inner rod through holes 11 adapted to the sliding inner rod 10 are opened on the slide 2, and the slide 2 is slidably mounted on the sliding inner rod 10; the slide 2 includes a first slide 12 and a second slide 13, and the connecting rod 3 includes a first connecting rod group 14, a second connecting rod group 15, a third connecting rod group 16 and a fourth connecting rod group 17, the first slide 12 is rotatably connected to the first connecting rod group 14 and the second connecting rod group 15, respectively, and the second slide 13 is rotatably connected to the third connecting rod group 16 and the fourth connecting rod group 17 respectively; the sensor is fixed The seat 5 includes a first sensor fixing seat 18 and a second sensor fixing seat 19 which are symmetrically arranged. The first sensor fixing seat 18 is rotatably connected to the first connecting rod group 14 and the fourth connecting rod group 17 respectively, and the second sensor fixing seat 19 is rotatably connected to the second connecting rod group 15 and the third connecting rod group 16 respectively; the guide rod 8 includes a plurality of upper guide rods 20 and a lower guide rod 21, and the sensor fixing seat 5 is provided with a guide rod through hole which is compatible with the upper guide rod 20 and the lower guide rod 21; the front end of the sensor fixing seat 5 is provided with a sensor mounting groove, and the optical sensor 6 is installed on the sensor mounting groove. It can be understood that when the first slide 12 and the second slide 13 move closer to the inside, under the action of the connecting rod 3, the first sensor fixing seat 18 and the second sensor fixing seat 19 both extend outward; when the first slide 12 and the second slide 13 separate in the opposite direction to the outside, under the action of the connecting rod 3, the first sensor fixing seat 18 and the second sensor fixing seat 19 both retract inward, thereby adapting to barrels of different apertures.

[0024] It can be understood that in actual application, the detection body 1 can be installed with auxiliary tools such as rangefinders, laser probes, imagers, etc. The optical sensor 6, rangefinder and laser probe can all be connected to the control host for communication, so that the diameter data or three-dimensional grid data and internal imaging functions can be detected every 1-3mm, and the detection report can be automatically generated. The measurement range is wider and can measure products with a diameter of less than 40mm, including the detection of some small-diameter products. The product accuracy is high (±0.01mm), and the wear detection report is automatically generated to accurately provide users with the wear status of the production line, remind users to maintain or replace accessories of the production line, so that the products produced by users can achieve high quality, thereby improving the durability of the production line.

[0025] It can be understood that the utility model has a reasonable design and a unique structure. By setting a slide 2 and a connecting rod 3 to cooperate with the sensor fixing seat 5 to perform telescopic movement, and then using a high-precision optical sensor 6, when used in conjunction with an external control host, the measurement range is wider, and products with a diameter of less than 40 mm can be measured. The test accuracy is high, and the diameter data or three-dimensional grid data and internal imaging functions can be detected every 1-3 mm. Continuous distance measurement can be achieved, and the scope of application is wide and the efficiency is high.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. An inner diameter detection instrument adapted to various apertures, comprising a detection body, characterized in that: A plurality of slides are slidably installed in the detection body, and the slides are rotatably connected to a plurality of connecting rods. The connecting rods are rotatably connected to the sensor fixing seat through a rotating shaft. An optical sensor is installed on the sensor fixing seat. A bellows joint is installed at the front end of the detection body. A guide rod is connected between the sensor fixing seats. A fixing seat through hole is opened on the side of the detection body for the sensor fixing seat to extend out.

2. The inner diameter detection instrument adapted to various apertures according to claim 1, characterized in that: A plurality of sliding inner rods are arranged on the inner side of the detection body, a plurality of inner rod through holes adapted to the sliding inner rods are opened on the sliding seat, and the sliding seat is slidably mounted on the sliding inner rods.

3. The inner diameter detection instrument adapted to various apertures according to claim 1, characterized in that: The slide includes a first slide and a second slide, and the connecting rod includes a first connecting rod group, a second connecting rod group, a third connecting rod group and a fourth connecting rod group. The first slide is rotatably connected to the first connecting rod group and the second connecting rod group respectively, and the second slide is rotatably connected to the third connecting rod group and the fourth connecting rod group respectively.

4. The inner diameter detection instrument adapted to various apertures according to claim 3, characterized in that: The sensor fixing seat includes a first sensor fixing seat and a second sensor fixing seat which are symmetrically arranged with each other. The first sensor fixing seat is rotatably connected to the first connecting rod group and the fourth connecting rod group respectively, and the second sensor fixing seat is rotatably connected to the second connecting rod group and the third connecting rod group respectively.

5. The inner diameter detection instrument adapted to various apertures according to claim 1, characterized in that: The guide rods include a plurality of upper guide rods and lower guide rods, and the sensor fixing seat is provided with guide rod through holes which are matched with the upper guide rods and the lower guide rods.

6. The inner diameter detection instrument adapted to various apertures according to claim 1, characterized in that: A sensor mounting groove is provided at the front end of the sensor fixing seat, and the optical sensor is mounted on the sensor mounting groove.

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