Switching tool for measuring ear fork type part

Abstract

An adapter tool for measuring ear fork type parts comprises a target tool ball, a measuring rod used for being inserted into an ear fork hole, a half magnetic pin and an ear fork support, the two ends of the measuring rod are respectively provided with a containing hole used for containing the target tool ball, the middle of the measuring rod is provided with a pin hole used for being inserted into the half magnetic pin, and the half magnetic pin is inserted into the pin hole. The measuring rod is inserted into an ear fork hole of the ear fork support, and the half magnetic pin is tightly attached to the inner measuring surface of the ear fork support; and external threads are arranged at one end of the measuring rod. According to the utility model, the target tool ball and the ear fork hole are installed on the measuring rod and are in the same straight line, and the installation position of the ear fork support is continuously adjusted by means of the laser tracker until the real-time measurement data of the target tool ball at the two ends of the measuring rod and the theoretical data are in the error range, which indicates that the adapter tool is installed at the theoretical position. Therefore, the three-dimensional space position of the ear fork is determined, the installation efficiency of ear fork type parts is greatly improved, the assembly precision of the tool fixture is improved, and the size precision requirement of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary installation of tooling frames, in particular to a conversion tool for measuring ear fork-type parts. Background Art

[0002] As a precision spatial coordinate measuring device, the laser tracker combines laser interferometer and servo control equipment technology to measure the relative position of the target reflected by the target and the tracker. First, the theoretical data of a certain point or working surface is set on the supporting software of the laser tracker, and then the actual measured data is fed back to the supporting software in real time through the target ball. The positioning parts can be quickly adjusted and installed to the theoretical position. It has been widely used in the current tooling and fixture manufacturing.

[0003] Ear fork parts have always been a difficult problem in tooling jig assembly. The hole positioning accuracy required for ear fork parts is within the tolerance range of ±0.1mm, but the working surface of ear fork parts is generally the inner surface of the ear fork. There is no tolerance requirement for the outer surface of the ear fork, which cannot be used as the target ball mounting surface; when the ear fork groove size is small or the groove depth is deep, the target ball cannot be placed inside the ear fork, and the target ball mounting point cannot be set on the inner surface. Utility Model Content

[0004] The technical problem solved by the present invention is to provide a conversion tool for measuring ear fork-like parts, so as to solve the problems in the above-mentioned background technology.

[0005] The technical problem solved by the present invention is achieved by the following technical solutions:

[0006] A conversion tool for measuring ear fork-like parts comprises a target tool ball, a measuring rod for inserting into an ear fork hole, a half-magnetic pin and an ear fork support, wherein both ends of the measuring rod are provided with a receiving hole for placing the target tool ball, the middle portion of the measuring rod is provided with a pin hole for inserting the half-magnetic pin, the measuring rod is inserted into the ear fork hole of the ear fork support, and the half-magnetic pin is tightly attached to the inner measuring surface of the ear fork support; at the same time, an external thread is provided at one end of the measuring rod, and a nut is tightened on the external thread to fix the conversion tool and the ear fork as one.

[0007] In the present invention, a vent hole is provided on the side of the receiving hole to prevent gas from being trapped in the receiving hole and causing the target tool ball to be unable to be inserted.

[0008] In the present invention, the diameter of the measuring rod is the same as the aperture of the ear fork hole.

[0009] In the present invention, the measuring rod is a hollow structure.

[0010] In the utility model, a plane that is in close contact with the inner measuring surface of the ear fork is provided on the half magnetic pin.

[0011] In the utility model, when in use, the operator holds the tool, first takes out the half magnetic pin, inserts the measuring rod into the ear fork hole, and then inserts the half magnetic pin into the pin hole of the measuring rod, and makes the flat surface of the half magnetic pin close to the internal measuring surface of the ear fork, and then tightens the external thread with a nut to fix the tool and the ear fork into one; at this time, the target tool ball is placed on both ends of the measuring rod, and the installation position of the ear fork support is continuously adjusted with the help of a laser tracker until the real-time measurement data of the target tool balls at both ends of the measuring rod and the theoretical data are within the tolerance range of ±0.1mm, which indicates that the adapter tool has been installed to the theoretical position. The installation of the tool is equivalent to indirectly installing the ear fork in place, thereby determining the three-dimensional spatial position of the ear fork.

[0012] Beneficial effect: The utility model installs a target tool ball and an ear fork hole on the measuring rod, and the three are in the same straight line. With the help of a laser tracker, the installation position of the ear fork support is continuously adjusted until the real-time measurement data of the target tool balls at both ends of the measuring rod and the theoretical data are within the error range, which means that the adapter tool has been installed to the theoretical position, thereby determining the three-dimensional spatial position of the ear fork, greatly improving the installation efficiency of ear fork parts, and improving the assembly accuracy of the tooling frame, thereby improving the dimensional accuracy requirements of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation of a preferred embodiment of the present utility model.

[0014] Figure 2 This is a schematic diagram of the installation of the measuring rod and half of the magnetic pin in the preferred embodiment of the present utility model.

[0015] Figure 3 This is a schematic diagram of ear fork parts in a preferred embodiment of the present utility model. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0017] See also Figures 1 to 3 A conversion tool for measuring ear fork-like parts, comprising a target tool ball 1, a measuring rod 2, a half-magnetic pin 3 and an ear fork support 4, wherein both ends of the measuring rod 2 are respectively provided with accommodating holes for placing the target tool ball 1, and the middle part of the measuring rod 2 is provided with a pin hole for inserting the half-magnetic pin 3. The measuring rod 2 is inserted into the ear fork hole of the ear fork support 4, and the half-magnetic pin 3 is tightly attached to the inner measuring surface of the ear fork support 4; at the same time, an external thread is provided at one end of the measuring rod 2, and a nut is tightened on the external thread to fix the conversion tool and the ear fork as one.

[0018] In this embodiment, a vent hole is provided on the side of the receiving hole to prevent gas from being trapped in the receiving hole and causing the target tool ball 1 to be unable to be inserted.

[0019] In this embodiment, the diameter of the measuring rod 2 is the same as the diameter of the ear fork hole.

[0020] In this embodiment, the measuring rod 2 is a hollow structure.

[0021] In this embodiment, a plane that is in close contact with the inner measuring surface of the ear fork is provided on the half magnetic pin 3 .

[0022] In this embodiment, when in use, the operator holds the tool, first takes out the half magnetic pin 3, inserts the measuring rod 2 into the ear fork hole, and then inserts the half magnetic pin 3 into the pin hole of the measuring rod 2, and makes the flat surface of the half magnetic pin 3 close to the internal measuring surface of the ear fork, and then tightens the external thread with a nut to fix the tool and the ear fork into one; at this time, the target tool ball 1 is placed on both ends of the measuring rod 2, and the installation position of the ear fork support 4 is continuously adjusted with the help of a laser tracker until the real-time measurement data of the target tool ball 1 at both ends of the measuring rod 2 and the theoretical data are within the tolerance range of ±0.1mm, which indicates that the adapter tool has been installed to the theoretical position. The installation of the tool is equivalent to indirectly installing the ear fork in place, thereby determining the three-dimensional spatial position of the ear fork.

[0023] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A conversion tool for measuring ear fork parts, comprising a target tool ball, a measuring rod for inserting into the ear fork hole, a half magnetic pin and an ear fork support, characterized in that: Both ends of the measuring rod are respectively provided with accommodating holes for placing the target tool ball, and the middle part of the measuring rod is provided with a pin hole for inserting a half magnetic pin. The measuring rod is inserted into the ear fork hole of the ear fork support, and the half magnetic pin is close to the inner measuring surface of the ear fork support; at the same time, an external thread is provided at one end of the measuring rod.

2. The adapter tool for measuring ear fork parts according to claim 1, characterized in that: A vent hole is provided on the side of the accommodating hole.

3. The adapter tool for measuring ear fork parts according to claim 1, characterized in that: The diameter of the measuring rod is the same as the aperture of the ear fork hole.

4. The adapter tool for measuring ear fork parts according to claim 1, characterized in that: The measuring rod is a hollow structure.

5. The adapter tool for measuring ear fork parts according to claim 1, characterized in that: The half magnetic pin is provided with a plane which is in close contact with the inner measuring surface of the ear fork.

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