Blank surface inclined hole position on-line detection tool

Abstract

The utility model discloses a blank surface inclined hole position on-line testing fixture, which belongs to the technical field of dimension measurement after machining, and comprises a positioning frame, a sleeve is fixedly arranged on the positioning frame, a measuring column capable of axially sliding along the sleeve is mounted in the sleeve in a limiting and sliding manner, a limiting hole penetrating through the sleeve in the radial direction is formed in the sleeve, and the measuring column is arranged in the limiting hole. A limiting rod is detachably arranged in the limiting hole in a sliding mode, a limiting groove is formed in the outer wall of the measuring column, the limiting rod can extend into the limiting groove in a sliding mode, and when the top wall of the measuring column and the top wall of the sleeve are located on the same plane, the limiting rod is located at the midpoint position of the limiting groove. The beneficial effects of the utility model are that the device can measure the depth size and the position size of the conical surface of the inclined hole at the same time, thereby reducing time and labor cost; operation is simple, real-time online use can be achieved, and the error rate of products is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing dimension measurement technology, specifically relating to an online inspection tool for the position of oblique holes on a blank surface. Background Technology

[0002] In the machining industry, the common method for measuring the position of oblique holes is using a Coordinate Measuring Machine (CMM). The specific process is as follows: A CMM typically consists of a measuring platform, handwheels, probes, and a display. The method involves first moving the product to be measured to the CMM measuring area using a transfer cart, then placing the product on the CMM's measuring platform. Next, the CMM's probes are adjusted using the handwheel to collect data from the product's reference points. Then, the probes are adjusted again to measure the position of the oblique hole. Finally, a report is generated to determine if the measured object's dimensions are within acceptable limits. However, existing methods have the following problems: plug gauges and finger gauges can only measure the depth of oblique holes, not their position; they are difficult to measure the depth of the conical surface of a hole; CMM measurement is complex, with high time and labor costs; and existing methods cannot monitor the position of the oblique hole in real time.

[0003] Therefore, it is necessary to propose an online inspection tool for the position of the oblique hole on the blank surface to solve the above problems. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an online inspection tool for the position of the oblique hole on the blank surface, which can simultaneously measure the depth and position dimensions of the conical surface of the oblique hole, reducing time and labor costs; it is simple to operate and can be used online in real time, reducing the error rate of the product.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides an online inspection tool for the position of inclined holes on a blank surface, including a positioning frame. A sleeve is fixedly mounted on the positioning frame. A measuring column that can slide along the axial direction of the sleeve is slidably installed inside the sleeve. A limiting hole that penetrates the sleeve radially is provided on the sleeve. A limiting rod that can be slidably and detachably installed inside the limiting hole is provided. A limiting groove is provided on the outer wall of the measuring column. The limiting rod can slide and extend into the limiting groove. When the top wall of the measuring column and the top wall of the sleeve are on the same plane, the limiting rod is located at the midpoint of the limiting groove.

[0007] Furthermore, a calibration sleeve is detachably provided on the positioning frame. The calibration sleeve is coaxially arranged with the sleeve. The calibration sleeve is slidably fitted on the end of the measuring column that extends out of the sleeve, and the bottom wall of the calibration sleeve and the bottom wall of the measuring column are located on the same plane.

[0008] Furthermore, the positioning frame includes a positioning plate, which is fixedly mounted on the product to be tested by a first fixing pin. A connecting plate is fixedly connected to the positioning plate by a cylindrical pin, and a support plate is fixedly connected to the connecting plate. The sleeve is fixedly mounted on the support plate, and the support plate is provided with a through hole coaxial with the center hole of the sleeve.

[0009] Furthermore, the first fixing pin includes a round pin and a diamond pin respectively disposed at both ends of the positioning plate.

[0010] The advantages of this invention are: it can simultaneously measure the depth and position of the conical surface of an inclined hole, reducing time and labor costs; it is simple to operate and can be used online in real time, reducing the error rate of the product.

[0011] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0012] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the installation of the measuring column according to an embodiment of the present invention.

[0015] The following components are marked in the attached diagram: positioning frame 1, positioning plate 101, cylindrical pin 102, connecting plate 103, support plate 104, round pin 105, diamond pin 106, sleeve 2, limiting hole 201, measuring column 3, limiting groove 301, limiting rod 4, and calibration sleeve 5. Detailed Implementation

[0016] like Figures 1-2 As shown, this utility model provides an online inspection tool for the position of inclined holes on a blank surface, including: a positioning frame 1, a sleeve 2 fixedly mounted on the positioning frame 1, a measuring column 3 that can slide along the axial direction of the sleeve 2 is slidably installed inside the sleeve 2, a limiting hole 201 that radially penetrates the sleeve 2 is provided on the sleeve 2, a slidably detachable limiting rod 4 is provided inside the limiting hole 201, a limiting groove 301 is provided on the outer wall of the measuring column 3, the limiting rod 4 extends into the limiting groove 301, and when the top wall of the measuring column 3 and the top wall of the sleeve 2 are on the same plane, the limiting rod 4 is located at the midpoint of the limiting groove 301.

[0017] In this scheme, when measuring the position of the oblique hole on the blank surface, the middle dimension of the conical surface of the oblique hole opening is selected as the reference dimension. The positioning frame 1 is fixedly installed on the product, and the positioning frame 1 is in contact with the reference surface of the product, so that the position of the sleeve 2 corresponds to the position of the oblique hole, so that the measuring column 3 contacts the selected reference surface of the oblique hole, and the measuring column 3 can slide into the oblique hole. The measurement column 3 is checked by touching the top wall with a finger to see if it is inside the two ends of the sleeve 2. Finally, the position dimension of the oblique hole is controlled by controlling the upper and lower limits of the measuring column 3 and the sleeve 2.

[0018] In one embodiment of this utility model, a calibration sleeve 5 is detachably provided on the positioning frame 1. The calibration sleeve 5 is coaxially arranged with the sleeve 2 and slidably connected to the measuring column 3. The calibration sleeve 5 is sleeved on the end of the measuring column 3 that extends out of the sleeve 2, and the bottom wall of the calibration sleeve 5 and the bottom wall of the measuring column 3 are located on the same plane.

[0019] In this scheme, the height of the measuring column 3 is consistent with the distance from the bottom wall of the calibration sleeve 5 to the top wall of the sleeve 2. The accuracy of the measuring column 3 can be calibrated by the operator touching the bottom wall of the measuring column 3 and the bottom wall of the calibration sleeve 5, as well as the top wall of the measuring column 3 and the top wall of the calibration sleeve 5 to check for height differences.

[0020] In one embodiment of this utility model, the positioning frame 1 includes a positioning plate 101, which is fixedly installed on the product to be tested by a first fixing pin. A connecting plate 103 is fixedly connected to the positioning plate 101 by a cylindrical pin 102. A support plate 104 is fixedly connected to the connecting plate 103. The sleeve 2 is fixedly disposed on the support plate 104. The support plate 104 is provided with a through hole coaxially disposed with the center hole of the sleeve 2.

[0021] In one embodiment of this utility model, the first fixing pin includes a round pin 105 and a diamond pin 106 respectively disposed at both ends of the positioning plate 101. The round pin 105 is used to confirm the position of the parts, ensuring that the components can be accurately aligned during assembly. The diamond-shaped cross-section of the diamond pin 106 can prevent relative rotation of the parts, ensuring that no rotation occurs after assembly and providing higher positioning accuracy. The combination of the round pin 105 and the diamond pin 106 provides dual positioning, ensuring accurate positioning of the parts in multiple directions, enhancing the stability and reliability of the assembly, and reducing errors.

[0022] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. An online inspection tool for the position of oblique holes on a blank surface, comprising a positioning frame, characterized in that: A sleeve is fixedly installed on the positioning frame. A measuring column that can slide along the axial direction of the sleeve is slidably installed inside the sleeve. A limiting hole that penetrates the sleeve radially is provided on the sleeve. A limiting rod that can be slidably and detachably installed inside the limiting hole is provided. A limiting groove is provided on the outer wall of the measuring column. The limiting rod can slide and extend into the limiting groove. When the top wall of the measuring column and the top wall of the sleeve are on the same plane, the limiting rod is located at the midpoint of the limiting groove.

2. The online inspection tool for the position of the oblique hole on the blank surface according to claim 1, characterized in that: The positioning frame is detachably equipped with a calibration sleeve, which is coaxially arranged with the sleeve. The calibration sleeve is slidably fitted on the end of the measuring column that extends out of the sleeve, and the bottom wall of the calibration sleeve and the bottom wall of the measuring column are located on the same plane.

3. The online inspection tool for the position of the oblique hole on the blank surface according to claim 2, characterized in that: The positioning frame includes a positioning plate, which is fixedly mounted on the product to be tested by a first fixing pin. A connecting plate is fixedly connected to the positioning plate by a cylindrical pin. A support plate is fixedly connected to the connecting plate. The sleeve is fixedly mounted on the support plate. The support plate is provided with a through hole coaxial with the center hole of the sleeve.

4. The online inspection tool for the position of the oblique hole on the blank surface according to claim 3, characterized in that: The first fixing pin includes a round pin and a diamond pin respectively disposed at both ends of the positioning plate.

Images