Special detection tool for position accuracy of inclined hole of sun wheel gear blank

Abstract

The utility model provides a special gauge for the position accuracy of an inclined hole of a sun wheel gear blank. The special gauge specifically comprises a measuring platform, a measuring seat, a positioning seat, a measuring rod and a guide sleeve, the measuring platform is of a square plate-shaped structure; the four measuring seats are symmetrically mounted on the surface of the measuring platform at intervals; the positioning seat is fixedly arranged at the symmetrical center position in the middle of the four measuring seats; the four measuring rods are respectively, independently and obliquely inserted into the top surface of the measuring seat in a penetrating manner, and are movably placed on the surface of the positioning seat; the guide sleeve is installed on the measuring seat and used for being connected with the measuring rod in a sleeved mode. The testing fixture can be used for measuring and evaluating at any time in the production process, and is convenient for field operation. The measurement working angle is fixed, and errors caused by measurement means are avoided. And the drilling diameter error can be considered in the location degree detection process.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tools and accessories processing, in particular to a special inspection tool for the position of an inclined hole of a sun gear blank. Background Art

[0002] Measuring the position of inclined holes in sun gear blanks requires extremely high accuracy and stability of the inspection fixture. For example, the position of the 4-2.5 hole on a part, located on a 41-degree slope, must be less than 0.3mm relative to the hole A datum. Direct evaluation of machining position is difficult, and most rely on automated three-dimensional coordinate measuring equipment. However, existing measurement and evaluation methods are limited, making it difficult to monitor and inspect samples for large-scale production processes. Relying on precision testing equipment results in high costs and low returns, and it is impossible to provide real-time monitoring of production processes. Summary of the Invention

[0003] Technical solution: In order to solve the above-mentioned technical problems, the utility model provides a special inspection tool for the position of the inclined hole of the sun gear blank, which specifically includes a measuring platform, a measuring seat, a positioning seat, a measuring rod, and a guide sleeve; the measuring platform is a square plate structure; four measuring seats are installed, which are symmetrically installed on the surface of the measuring platform; the positioning seat is fixedly installed at the symmetrical center position in the middle of the four measuring seats; four measuring rods are provided, which are independently and obliquely inserted through the top surface of the measuring seat and movably placed on the surface of the positioning seat; the guide sleeve is installed on the measuring seat for sleeve-connecting the measuring rod.

[0004] As an improvement, it further includes four feet, which are independently installed at the bottom of the four corners of the measuring platform.

[0005] As an improvement, it also includes four compression springs, each of which is installed in the measuring rod in a fitting manner and is placed in the guide sleeve in a sliding manner with a clearance fit with the measuring rod.

[0006] As an improvement, the end of the measuring seat is an inclined surface structure, and a through hole is provided along the vertical surface of the inclined surface structure, with the outlet aligned with the positioning seat for installing the guide sleeve.

[0007] As an improvement, a hexagon socket bolt is further included for fixing the connection between the positioning seat and the measuring platform.

[0008] Beneficial Effects: The sun gear blank oblique hole position accuracy test fixture proposed in this utility model allows for measurement and evaluation at any time during the production process, facilitating on-site operation. The measurement angle is fixed, eliminating errors caused by measurement methods. The position accuracy test also takes into account errors in both the drill hole diameter and the size. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1It is a structural diagram of the inspection tool of the present utility model.

[0010] Figure 2 This is the main view of the inspection tool of the present invention.

[0011] Figure 3 This is a front cross-sectional view of the inspection tool of the present invention.

[0012] In the figure: measuring platform 1, measuring base 2, positioning base 3, measuring rod 4, guide sleeve 5, and base 6. DETAILED DESCRIPTION

[0013] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0014] See Figure 1 As shown, a special inspection tool for the position of the inclined hole of the sun gear blank includes a measuring platform 1, a measuring seat 2, a positioning seat 3, a measuring rod 4, and a guide sleeve 5; the measuring platform 1 is a square plate structure; four measuring seats 2 are installed, which are symmetrically installed on the surface of the measuring platform 1 at intervals; the positioning seat 3 is fixedly installed at the symmetrical center position in the middle of the four measuring seats 2; four measuring rods 4 are provided, which are independently and obliquely inserted through the top surface of the measuring seat 2 and movably placed on the surface of the positioning seat 3; the guide sleeve 5 is installed on the measuring seat 2 for sleeve-connecting the measuring rod 4.

[0015] The present invention also includes four feet 6, which are independently installed at the bottom of the four corners of the measuring platform 1. The central measuring positioning seat 3 is fixed on the measuring platform 1. The four measuring seats 3 and the corresponding measuring rods 4 are fixed in symmetrical positions. The workpiece is centered at the center of the positioning seat 3, and the measuring rod 4 can be slid to perform position detection.

[0016] In order to ensure smooth sliding measurement of the measuring rod, four compression springs are provided, each of which is fitted in the measuring rod 4 and placed inside the guide sleeve 5 for sliding with the clearance fit of the measuring rod. The sliding measuring rod can perform sliding measurement by relying on the clearance fit and the spring.

[0017] The end of the measuring seat 2 is an inclined surface structure, and a through hole is provided along the vertical surface of the inclined surface structure, the outlet of which is aligned with the positioning seat 3 for installing the guide sleeve 5. It also includes a hexagon socket bolt for fixing the positioning seat and the measuring platform.

[0018] Working process and principle:

[0019] The required workpiece position angle can be, for example, 41 degrees, a non-standard angle. The measuring base is manufactured according to the drawing. The measuring platform is pre-assembled with a positioning device for the position point. The pre-assembled measuring base is then fixed to the positioning point to solidify the measured angle. The sliding sidebar utilizes a clearance fit and a spring to enable sliding measurement. Centering is based on the workpiece hole A datum requirement, fixing the workpiece center.

[0020] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A special inspection tool for the position of the oblique hole of a sun gear blank, characterized by: The invention comprises a measuring platform (1), a measuring seat (2), a positioning seat (3), a measuring rod (4), and a guide sleeve (5); the measuring platform (1) is a square plate-shaped structure; four measuring seats (2) are installed and are symmetrically spaced and installed on the surface of the measuring platform (1); the positioning seat (3) is fixedly installed at the symmetrical center position in the middle of the four measuring seats (2); four measuring rods (4) are provided, which are independently inserted obliquely through the top surface of the measuring seat (2) and movably placed on the surface of the positioning seat (3); the guide sleeve (5) is installed on the measuring seat (2) and is used for sleeve-connecting the measuring rod (4).

2. The sun gear blank oblique hole position inspection tool according to claim 1, characterized in that: It also includes footings (6); four footings (6) are provided and are independently installed at the bottoms of the four corners of the measuring platform (1).

3. The sun gear blank oblique hole position inspection tool according to claim 1, characterized in that: It also includes four compression springs, each of which is fitted in the measuring rod (4) and is slidably fitted in the measuring rod to be placed in the guide sleeve (5).

4. The sun gear blank oblique hole position detection tool according to claim 1, characterized in that: The end of the measuring seat (2) is an inclined surface structure, and a through hole is provided along the vertical surface of the inclined surface structure, with the outlet aligned with the positioning seat (3) for installing the guide sleeve (5).

5. The special inspection tool for the position accuracy of the oblique hole of the sun gear blank according to claim 1, characterized in that: It also includes a hexagon socket bolt (8) for fixing and connecting the positioning seat (3) and the measuring platform (1).

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