Valve body radial hole position accuracy testing fixture

Abstract

The utility model relates to a valve body radial hole position degree detection tool, and belongs to the technical field of detection tools. The utility model aims to solve the problems of low detection efficiency and low measurement precision when an existing detection tool is used for detecting the position degree of a radial hole of a steering gear valve body. The valve body detection device comprises a detection seat, a fixing piece and a detection pin, the detection seat is provided with a detection part extending outwards along a seat body, and when the detection seat is installed on a to-be-detected valve body through the fixing piece, the detection part is installed in a main hole of the to-be-detected valve body; a mounting hole is formed in the detection seat where the detection part is located, and one end of the mounting hole extends to the outer side of the detection part; the detection pin is slidably installed in the installation hole, and one end of the detection pin slides to the outer side of the installation hole under the driving of the driving member so as to form a radial hole position degree detection end. The detection tool is low in manufacturing cost, high in detection precision and high in detection efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to a valve body radial hole position degree gauge, and belongs to the technical field of detection tools. BACKGROUND

[0002] The valve body is an important load-bearing component of a hydraulic steering gear, and bears the function of loading internal parts and connecting with the host and running. Its main function is to control the flow direction and flow rate of hydraulic oil to ensure that the steering system can work according to the intention of the driver. The valve body controls the flow direction and flow rate of the pressure oil to realize the steering function of the vehicle. The existing steering gear valve body has strict quality requirements for the radial hole position degree inside the main hole of the valve body when it is delivered. The radial hole position degree and size of the valve body directly affect the normal work of the steering gear. If the radial hole position degree of the valve body does not meet the standard, abnormal situations such as abnormal flow direction of the pressure oil in the steering gear, vehicle deviation, abnormal noise and jamming may occur when the steering gear is used. However, the existing valve body cannot directly measure the radial hole position degree after production and processing, and is usually measured by relative position conversion measurement or three-coordinate measurement. The relative position conversion measurement has large measurement error and low measurement accuracy, and the three-coordinate measurement has the problems of high cost and long measurement period. Therefore, a valve body radial hole position degree gauge is needed to solve the problems of low detection efficiency and low measurement accuracy of the existing gauges for detecting the radial hole position degree of the steering gear valve body. CONTENT OF THE UTILITY MODEL

[0003] In view of the problems and deficiencies in the prior art, the valve body radial hole position degree gauge is provided to solve the above technical problems.

[0004] To achieve the above purpose, the application provides the following technical scheme: a valve body radial hole position degree gauge, comprising a detection seat, a fixing piece and a detection pin, the detection seat is provided with a detection part extending outward along the seat body, and when the detection seat is installed on the valve body to be detected through the fixing piece, the detection part is installed on the main hole of the valve body to be detected; the inside of the detection seat where the detection part is located is provided with a mounting hole, and one end of the mounting hole extends to the outside of the detection part; the detection pin is slidingly installed in the mounting hole, and one end thereof is slidingly driven to the outside of the mounting hole through a driving piece to form a radial hole position degree detection end.

[0005] Specifically, the fixing piece comprises a first shaft sleeve and a plug; the valve body to be detected is provided with a mounting threaded hole, the detection seat is provided with a fixing hole at a position corresponding to the mounting threaded hole, the first shaft sleeve is fixedly installed in the fixing hole, and when the detection seat is installed on the valve body to be detected, the fixing hole is arranged corresponding to the mounting threaded hole, and the detection seat is installed on the valve body to be detected by the plug penetrating through the fixing hole and being threadedly locked in the mounting threaded hole.

[0006] Specifically, a positioning hole is formed on the side of the detection seat facing the valve body to be detected, and a positioning pin is installed in the positioning hole; one end of the positioning pin extends to the outside of the positioning hole in the direction of the valve body to be detected, so as to form a height adjusting end; when the detection seat is installed on the valve body to be detected, the height adjusting end of the positioning pin abuts against the valve body to be detected.

[0007] Specifically, the positioning pin is divided into several types according to the length of the height adjusting end; the detection seat is installed with different types of positioning pins to adjust the installation length of the detection part into the main hole of the valve body to be detected.

[0008] Specifically, a first installation hole is formed on the detection seat and communicates with the installation hole, so as to install the driving part; the driving part includes a handle and a cylindrical pin; the cylindrical pin is fixedly installed in the first installation hole, the handle is provided with a pin hole in the handle body and is sleeved on the cylindrical pin through the pin hole, and is rotatably installed in the first installation hole, one end of the handle extends to the outside of the detection seat to form an operation part for rotating the handle, and the other end extends into the installation hole to form a connecting end for connecting with the detection pin.

[0009] Specifically, the first installation hole is a stepped structure, the hole diameter on the side of the installation hole is a small hole diameter structure, a second shaft sleeve is installed in the first installation hole with a large hole diameter, and a shaft sleeve hole with the same hole diameter as the small hole diameter end of the first installation hole is formed in the second shaft sleeve; the cylindrical pin is rotatably installed in the hole of the first installation hole with a large hole diameter.

[0010] Specifically, the connecting end of the handle is in a spherical structure, the detection pin is provided with a connecting hole at a position corresponding to the connecting end of the handle, and the handle is detachably installed in the connecting hole through the spherical connecting end, and the handle and the detection pin are rotatably connected.

[0011] Specifically, the shape of the detection pin is matched with the shape of the installation hole, and the shape of the radial hole position degree detection end of the detection pin is matched with the shape of the radial hole.

[0012] Specifically, when the detection seat is installed on the valve body to be detected, the bottom side of the detection seat is arranged in parallel with the surface of the valve body to be detected; the extension direction of the detection part extending outward along the seat body of the detection seat is consistent with the opening direction of the main hole of the valve body to be detected.

[0013] Specifically, the opening direction of the installation hole is consistent with the opening direction of the radial hole of the valve body to be detected.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] 1. The application realizes the installation of the detection seat on the valve body to be detected by setting the detection part extending outward along the seat body, and the detection part is installed in the main hole of the valve body to be detected. The installation hole is set in the inside of the detection part, and the detection pin is slidably installed in the installation hole, so that when the radial hole position of the valve body to be detected is detected, the detection pin is driven by the driving part to slide out of the installation hole, and whether the detection pin can smoothly slide out of the installation hole and insert into the radial hole is used to judge the accuracy of the radial hole position. The valve radial hole position gauge of the application has low manufacturing cost, small detection error, simple detection operation and high detection efficiency.

[0016] 2. On the basis of the foregoing, in order to improve the detection accuracy, the detection seat of the application is installed on the surface of the valve body to be detected by the fixing part, and the detection part is directly installed in the main hole. The fixing part of the application adopts the plug-in type fixing mode, the fixing hole is set on the detection seat corresponding to the installation thread hole of the valve body to be detected, and in order to make the plug cooperate closely with the fixing hole, the detection seat and the valve body to be detected will not shake left and right due to installation gap, which will cause low installation positioning property. The first shaft sleeve is set in the fixing hole to make the plug and the installation thread hole accurately positioned. In addition, when the detection seat is installed on the valve body to be detected, the bottom side of the detection seat is arranged in parallel with the surface of the valve body to be detected; the extension direction of the detection part extending outward along the seat body of the detection seat is consistent with the opening direction of the main hole of the valve body to be detected. When the detection seat is installed on the valve body to be detected, the detection part and the main hole of the valve body are accurately positioned, so that the radial height between the detection pin on the detection part and the detection seat is the radial height between the radial hole of the valve body to be detected and the surface of the valve body, and whether the detection pin can insert into the radial hole is used to judge whether the position of the radial hole is qualified.

[0017] 3. On the basis of the foregoing, in order to improve the applicability and compatibility of the valve radial hole position gauge of the application, the positioning hole is set on the side of the detection seat facing the valve body to be detected, the positioning pin is installed in the positioning hole, one end of the positioning pin extends to the outside of the positioning hole in the direction of the valve body to be detected to form the height adjusting end, and the height adjusting end of the positioning pin abuts against the valve body to be detected when the detection seat is installed on the valve body to be detected. The height between the radial hole of the detection seat and the valve body to be detected is adjusted by the positioning pin, so that for different models of valve bodies to be detected, the height between the radial hole of the detection seat and the valve body can be adjusted by selecting different models of positioning pins, which improves the applicability and compatibility of the gauge. In addition, the sizes of the main holes of different models of valve bodies are different, and in order to enable the handle to drive the detection pin in the small-diameter main hole, the second shaft sleeve is set in the first installation hole of the detection seat, the second shaft sleeve is selected when the size of the main hole is large to limit the driving stroke of the handle, and vice versa, the second shaft sleeve is removed to increase the driving stroke of the handle, which improves the applicability of the gauge.

[0018] 4. On the basis of the foregoing, the valve body radial hole position degree gauge of the application adopts split structure for the components, such as positioning peg, plug, detection pin and handle, to realize customization of the gauge components according to actual detection requirements, and the split components can be replaced individually when damaged, avoiding waste and loss caused by overall replacement of the gauge. In addition, the split components can be combined in various ways to adapt to various detection environments, greatly reducing the dependence on the site environment and improving one-time rapid detection. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the valve body radial hole position degree gauge of the embodiment;

[0020] Figure 2 It is a structure top view of the valve body radial hole position degree gauge of the embodiment;

[0021] Figure 3 It is a structure schematic view of the detection seat of the valve body radial hole position degree gauge of the embodiment;

[0022] Figure 4 It is a structure schematic view of the positioning peg of the valve body radial hole position degree gauge of the embodiment;

[0023] Figure 5 It is a structure schematic view of the handle of the valve body radial hole position degree gauge of the embodiment;

[0024] Figure 6 It is a structure schematic view of the plug of the valve body radial hole position degree gauge of the embodiment;

[0025] Figure 7 It is a structure schematic view of the detection pin of the valve body radial hole position degree gauge of the embodiment. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is specifically described below in combination with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the specific protection range requested by the utility model.

[0027] Please refer to Figures 1-7The embodiment discloses a valve body radial hole position degree gauge, which comprises a detection seat 1, a fixing piece and a detection pin 9, the detection seat is provided with a detection part extending outward along the seat body, and when the detection seat is installed on a valve body to be detected through the fixing piece, the detection part is installed on a main hole of the valve body to be detected; the inside of the detection seat where the detection part is located is provided with a mounting hole 8, and one end of the mounting hole extends to the outside of the detection part; the detection pin 9 is slidingly installed in the mounting hole, and one end thereof is slidingly extended to the outside of the mounting hole through the driving of a driving piece to form a radial hole position degree detection end.

[0028] The fixing piece of the embodiment comprises a first shaft sleeve 7 and a plug-in pin 6; the valve body to be detected is provided with a mounting threaded hole, the detection seat is provided with a fixing hole at a position corresponding to the mounting threaded hole, the first shaft sleeve is fixedly installed in the fixing hole, when the detection seat is installed on the valve body to be detected, the fixing hole is arranged in correspondence with the mounting threaded hole, and the detection seat is installed on the valve body to be detected by penetrating the fixing hole through the plug-in pin and being threadedly locked in the mounting threaded hole.

[0029] The side of the detection seat 1 of the embodiment facing the valve body to be detected is provided with a positioning hole in the seat body, and a positioning nail 2 is installed in the positioning hole; one end of the positioning nail extends to the outside of the positioning hole in the direction of the valve body to be detected to form a height adjusting end; when the detection seat is installed on the valve body to be detected, the height adjusting end of the positioning nail abuts against the valve body to be detected. In order to improve the applicability of the gauge of the embodiment, the positioning nail of the embodiment is divided into positioning nails of several types according to the length of the height adjusting end; the detection seat is provided with the positioning nails of different types to adjust the installation length of the detection part installed into the main hole of the valve body to be detected.

[0030] In addition, the detection seat of the embodiment is provided with a first mounting hole in communication with the mounting hole for mounting a driving piece; the driving piece comprises a handle 5 and a cylindrical pin 4; the cylindrical pin 4 is fixedly installed in the first mounting hole, the handle is provided with a pin hole in the handle body and is sleeved on the cylindrical pin through the pin hole and is rotationally installed in the first mounting hole, one end of the handle extends to the outside of the detection seat to form an operation part for rotating the handle, and the other end extends to the mounting hole to form a connecting end for connecting with the detection pin. The first mounting hole of the embodiment is a stepped structure, the hole diameter of the hole on the side of the mounting hole is a small hole diameter structure, a second shaft sleeve 3 is installed in the first mounting hole of the large hole diameter area, the second shaft sleeve is provided with a shaft sleeve hole with the same hole diameter as the small hole diameter end of the first mounting hole, and the cylindrical pin is rotationally installed in the hole of the first mounting hole at the large hole diameter end. The connecting end of the handle is a spherical structure, the detection pin is provided with a connecting hole at a position corresponding to the connecting end of the handle, the handle is detachably installed in the connecting hole through the spherical connecting end, and the handle and the detection pin are rotationally connected.

[0031] Further, the shape of the detection pin of the embodiment is matched with the shape of the mounting hole, and the shape of the radial hole position degree detection end of the detection pin is matched with the shape of the radial hole. When the detection seat of the embodiment is mounted on the valve body to be detected, the bottom side surface of the detection seat is arranged in parallel with the surface of the valve body to be detected, and the extension direction of the detection part extending outward along the detection seat body is consistent with the opening direction of the main hole of the valve body to be detected. It should be noted that the opening direction of the main hole of the valve body to be detected of the embodiment is perpendicular to the surface of the valve body, and the opening direction of the radial hole is perpendicular to the main hole. Therefore, the detection part of the embodiment extends outward vertically relative to the detection seat, and the mounting hole inside the detection part is arranged vertically relative to the detection part.

[0032] Working principle: When the valve body radial hole position degree gauge of the embodiment is used, the tester determines the position degree data of the main hole and the radial hole of the valve body to be detected according to the specifications and models of the valve body to be detected. Then the tester assembles the positioning peg, the plug and other components to complete the assembly of the gauge components.

[0033] When detecting, the tester installs the positioning peg on the detection seat, then installs the detection part in the main hole of the valve body to be detected, and then installs the plug through the fixing hole of the detection seat and screws it to the mounting screw hole of the valve body to fix and install the detection seat on the valve body. At this time, it should be noted that the bottom surface of the detection seat is arranged in parallel with the surface of the valve body, and the detection part of the detection seat is installed on the valve body vertically. In addition, the detection seat is abutted on the valve body to be detected by the height adjustment end of the positioning peg, and the distance between the detection seat and the mounting hole of the detection part is the distance between the radial hole of the standard valve body and the surface of the valve body, that is, the position degree of the radial hole. After the detection seat is fixed and installed, the tester manually drives the handle to drive the detection pin to slide out of the mounting hole, and determines whether the position degree of the radial hole of the valve body to be detected is qualified according to whether the radial hole position degree detection end of the detection pin can smoothly slide into the radial hole. If the radial hole position degree detection end can smoothly enter, it means that the position degree of the radial hole is qualified, otherwise it is unqualified.

[0034] The embodiments of the application are described in detail above in combination with the embodiments, but the application is not limited to the above-described embodiments. For those skilled in the art, after learning the content described in the application, without departing from the principles of the application, a number of equivalent transformations and substitutions can be made, which should also be regarded as belonging to the protection scope of the application.

Claims

1. A valve body radial hole location gauge, comprising a detection seat, a fixing member and a detection pin, characterized in that: The detection seat is provided with a detection part extending outward along the seat body, and when the detection seat is installed on the valve body to be detected by the fixing part, the detection part is installed on the main hole of the valve body to be detected; the inside of the detection seat where the detection part is located is provided with a mounting hole, and one end of the mounting hole extends to the outside of the detection part; the detection pin is slidingly installed in the mounting hole, and one end thereof is slidingly extended to the outside of the mounting hole by the driving of the driving part, so as to form a radial hole position degree detection end.

2. The valve body radial bore position gage of claim 1, wherein: The fixing part comprises a first shaft sleeve and a plug; the valve body to be detected is provided with a mounting threaded hole, and the detection seat is provided with a fixing hole at a position corresponding to the mounting threaded hole; the first shaft sleeve is fixedly installed in the fixing hole; when the detection seat is installed on the valve body to be detected, the fixing hole is arranged in correspondence with the mounting threaded hole, and the detection seat is installed on the valve body to be detected by the plug penetrating through the fixing hole and being threadedly locked in the mounting threaded hole.

3. The valve body radial bore position gage of claim 1, wherein: The detection seat is provided with a positioning hole on the side of the seat body facing the valve body to be detected, and a positioning pin is installed in the positioning hole; one end of the positioning pin extends to the outside of the positioning hole in the direction of the valve body to be detected, so as to form a height adjusting end; when the detection seat is installed on the valve body to be detected, the height adjusting end of the positioning pin abuts against the valve body to be detected.

4. The valve body radial bore position gage of claim 3, wherein: The positioning pin is divided into several types according to the length of the height adjusting end; the detection seat is provided with different types of positioning pins, so as to adjust the installation length of the detection part installed in the main hole of the valve body to be detected.

5. The valve body radial bore position gage of claim 1, wherein: The detection seat is provided with a first mounting hole communicating with the mounting hole, so as to install the driving part; the driving part comprises a handle and a cylindrical pin; the cylindrical pin is fixedly installed in the first mounting hole; the handle is provided with a pin hole in the handle body, and is sleeved with the cylindrical pin through the pin hole, and is rotationally installed in the first mounting hole, and one end thereof extends to the outside of the detection seat, so as to form an operation part for rotating the handle, and the other end extends to the mounting hole, so as to form a connecting end for connecting with the detection pin.

6. A valve body radial bore position gage according to claim 5 wherein: The first mounting hole is a stepped structure, and the hole diameter on the side of the mounting hole is a small hole diameter structure, and a second shaft sleeve is installed in the first mounting hole of the large hole diameter region, and the second shaft sleeve is provided with a shaft sleeve hole with the same hole diameter as the small hole diameter end of the first mounting hole; the cylindrical pin is rotationally installed in the hole of the first mounting hole at the large hole diameter end.

7. A valve body radial bore position tool according to claim 6, wherein: The connecting end of the handle is a spherical structure, the detection pin is provided with a connecting hole at a position corresponding to the connecting end of the handle, and the handle is detachably installed in the connecting hole through the spherical connecting end, and is rotationally connected with the detection pin.

8. The valve body radial bore position gage of claim 1, wherein: The shape of the detection pin is matched with the shape of the mounting hole, and the shape of the radial hole position degree detection end of the detection pin is matched with the shape of the radial hole.

9. The valve body radial bore position gage of claim 1 wherein: When the detection seat is installed on the valve body to be detected, the bottom side of the detection seat is arranged in parallel with the surface of the valve body to be detected; the extension direction of the detection part extending outward along the seat body of the detection seat is consistent with the hole opening direction of the main hole of the valve body to be detected.

10. The valve body radial bore position tool of claim 1, wherein: The hole opening direction of the mounting hole is consistent with the hole opening direction of the radial hole of the valve body to be detected.

Images