A tool for measuring the angle of the tapered hole at the bottom of a deep groove cavity

Abstract

The present application belongs to the technical field of measuring tools, and in particular, relates to an instrument for quickly measuring the angle of a tapered hole at the bottom of a deep groove cavity, comprising a center rod, the top of which is connected to one end of a connecting rod, the other end of which is connected to a protractor, the protractor being arranged on an auxiliary measuring rod, the lower part of which is provided with a vertical sliding connection block, the vertical sliding connection block being connected to three cross bars, one of which is connected to the auxiliary measuring rod through a transverse sliding connection block, the remaining two cross bars being connected to a stop connecting rod respectively through a transverse sliding connection block, the bottom of the center rod being connected with a stop cylinder, the stop cylinder being connected to two stop connecting rods and the auxiliary measuring rod respectively through a stop measuring rod. This measuring tool has a simple structure and is easy to operate, can penetrate into the bottom of a deep groove cavity, can accurately and quickly read the specific value of the tapered hole angle, and can provide practical data for the analysis of the later processing conditions.

Description

Technical Field

[0001] The present application belongs to the technical field of measuring tools, and in particular relates to an instrument for quickly measuring the angle of a tapered hole at the bottom of a deep groove cavity. Background Art

[0002] In the production process of machined parts, the chamfer taper of the bottom hole of the deep groove cavity is one of the indicators to judge whether the part processing is qualified. At present, in the actual factory production, the most commonly used angle ruler is used to measure the angle. However, when measuring the tapered hole at the bottom of the deep groove cavity, the angle ruler is difficult to operate in the deep groove cavity, it is inconvenient to read, and even difficult to put into the deep groove cavity. Another method is to make plug gauges of specific specifications for different specifications of tapered holes for testing. This detection method is costly and can only determine whether the taper of the hole meets the tolerance requirements, but cannot read the specific value of the taper of the hole. For the tapered hole at the bottom of the deep groove cavity, it is difficult to observe the scale line on the plug gauge, and it is impossible to make an accurate judgment on whether the taper of the hole is qualified.

[0003] Therefore, in order to solve the problem of measuring the angle of the tapered hole at the bottom of a deep groove cavity, the present invention provides a tool for measuring the angle of the tapered hole at the bottom of a deep groove cavity. Summary of the invention

[0004] In view of the above problems, a tool for measuring the angle of the tapered hole at the bottom of a deep groove cavity is specially proposed.

[0005] In order to achieve the above technical effects, the technical solution of this application is as follows:

[0006] A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity, characterized in that it includes a center rod, the top of the center rod is connected to one end of a connecting rod, the other end of the connecting rod is connected to a protractor, the protractor is arranged on an auxiliary measuring rod, a vertical sliding connecting block is arranged at the lower part of the center rod, the vertical sliding connecting block is connected to three cross rods, one of the cross rods is connected to the auxiliary measuring rod through a transverse sliding connecting block, and the remaining two cross rods are each connected to a stop connecting rod through a transverse sliding connecting block, the bottom of the center rod is connected to a stop cylinder, and the stop cylinder is respectively connected to two stop connecting rods and the auxiliary measuring rod through the stop measuring rod.

[0007] The central rod comprises a short rod and a long rod, and the short rod and the long rod are connected to each other through a vertical sliding connection block.

[0008] The central rod is an L-shaped rod.

[0009] The diameter of the stop cylinder is greater than or equal to the minimum diameter of the tapered hole to be measured, and smaller than the maximum diameter of the tapered hole to be measured.

[0010] The central rod short rod is a transverse part in the L-shaped structure, and its length is equal to the radius of the disc of the stop end part.

[0011] The auxiliary measuring rod and the central rod have the same length at their long ends.

[0012] There are three stop-end measuring rods, and the connection points with the stop-end cylinder are three trisection points of the circular surface of the stop-end cylinder.

[0013] The length of the stop end connecting rod is equal to the length of the stop end measuring rod.

[0014] How this application works:

[0015] Place the stop end in the hole, and move the center rod downward until it cannot be moved downward or left or right. At this time, the stop end measuring rod fits the conical surface of the hole. At this time, the angle between the stop end measuring rod and the center rod is 1 / 2 of the chamfer angle of this hole. At the same time, since the center rod, the stop end connecting rod, the auxiliary measuring rod, and the stop end measuring rod form a parallelogram, the angle formed by the stop end connecting rod and the auxiliary measuring rod is equal to the angle formed by the stop end measuring rod and the center rod, which is 1 / 2 of the taper to be measured. The angle formed by the stop end connecting rod and the auxiliary measuring rod can be directly read by the protractor fixed to the auxiliary measuring rod. By multiplying this reading by 2, the required chamfer angle can be obtained conveniently and quickly.

[0016] Advantages of this application:

[0017] This measuring tool has a simple structure and is easy to operate. It can penetrate into the bottom of a deep groove cavity and can accurately and quickly read the specific value of the tapered hole angle, providing practical data for subsequent processing analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of a deep groove cavity taper angle measuring device.

[0019] Figure 2 This is a schematic diagram of the motion principle of the slot cavity taper angle measuring device

[0020] Figure 3 This is a diagram showing the actual usage of the institution.

[0021] 1-center rod, 2-connecting rod, 3-protractor, 4-lateral sliding connection block, 7-auxiliary measuring rod, 8-stop connecting rod, 10-stop measuring rod, 13-stop cylinder, 14-vertical sliding connection block, 15-cross rod. DETAILED DESCRIPTION

[0022] Example 1

[0023] A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity comprises a center rod 1, the top of the center rod 1 is connected to one end of a connecting rod 2, the other end of the connecting rod 2 is connected to a protractor 3, the protractor 3 is arranged on an auxiliary measuring rod 7, a vertical sliding connection block 14 is arranged at the bottom of the center rod 1, the vertical sliding connection block 14 is connected to three cross bars 15, one of the cross bars 15 is connected to the auxiliary measuring rod 7 through a transverse sliding connection block 4, and the remaining two cross bars 15 are respectively connected to a stop connecting rod 8 through a transverse sliding connection block 4, and a stop cylinder 13 is connected to the bottom of the center rod 1, and the stop cylinder 13 is respectively connected to two stop connecting rods 8 and the auxiliary measuring rod 7 through a stop measuring rod 10. This measuring tool has a simple structure and is easy to operate. It can penetrate into the bottom of a deep groove cavity, can accurately and quickly read the specific value of the tapered hole angle, and can provide practical data for the analysis of the later processing situation.

[0024] Example 2

[0025] A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity comprises a center rod 1, the top of the center rod 1 is connected to one end of a connecting rod 2, the other end of the connecting rod 2 is connected to a protractor 3, the protractor 3 is arranged on an auxiliary measuring rod 7, a vertical sliding connection block 14 is arranged at the lower part of the center rod 1, the vertical sliding connection block 14 is connected to three cross bars 15, one of the cross bars 15 is connected to the auxiliary measuring rod 7 through a transverse sliding connection block 4, and the remaining two cross bars 15 are each connected to a stop connecting rod 8 through the transverse sliding connection block 4, and the bottom of the center rod 1 is connected to a stop cylinder 13, and the stop cylinder 13 is respectively connected to two stop connecting rods 8 and the auxiliary measuring rod 7 through a stop measuring rod 10.

[0026] The center rod 1 includes a short rod and a long rod, and the short rod and the long rod are connected to each other by a vertical sliding connection block 14. The center rod 1 is an L-shaped rod. The diameter of the end stop cylinder 13 is greater than or equal to the minimum aperture of the tapered hole to be measured, and smaller than the maximum aperture of the tapered hole to be measured. The short rod of the center rod 1 is the horizontal part in the L-shaped structure, and its length is equal to the radius of the end stop part disk. The auxiliary measuring rod 7 is equal to the length of the long end of the center rod 1. There are three end stop measuring rods 10, and the connection points with the end stop cylinder 13 are the three trisection points of the circular surface of the end stop cylinder 13. The length of the end stop connecting rod 8 is equal to the length of the end stop measuring rod 10.

[0027] Place the stop end in the hole, and move the center rod 1 downward until it cannot be moved downward or left and right. At this time, the stop end measuring rod 10 fits the conical surface of the hole. At this time, the angle between the stop end measuring rod 10 and the center rod 1 is 1 / 2 of the chamfer angle of this hole. At the same time, since the center rod 1, the stop end connecting rod 8, the auxiliary measuring rod 7, and the stop end measuring rod 10 form a parallelogram, the angle formed by the stop end connecting rod 8 and the auxiliary measuring rod 7 is equal to the angle formed by the stop end measuring rod 10 and the center rod 1, which is 1 / 2 of the taper to be measured. The angle formed by the stop end connecting rod 8 and the auxiliary measuring rod 7 can be directly read by the protractor 3 fixed to the auxiliary measuring rod 7. This reading × 2 can be used to conveniently and quickly obtain the required chamfer angle. This measuring tool has a simple structure and is easy to operate. It can penetrate into the bottom of the deep groove cavity, can accurately and quickly read the specific value of the tapered hole angle, and can provide practical data for the analysis of the later processing conditions.

Claims

1. A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity, characterized in that: The invention comprises a central rod (1), the top of the central rod (1) is connected to one end of a connecting rod (2), the other end of the connecting rod (2) is connected to a protractor (3), the protractor (3) is arranged on an auxiliary measuring rod (7), a vertical sliding connection block (14) is arranged at the bottom of the central rod (1), the vertical sliding connection block (14) is connected to three cross rods (15), one of the cross rods (15) is connected to the auxiliary measuring rod (7) via a transverse sliding connection block (4), and the remaining two cross rods (15) are connected to the auxiliary measuring rod (7) via a transverse sliding connection block (4). Each of the two end stop connecting rods (8) is connected to a stop connecting rod (8) via a transverse sliding connecting block (4); the bottom of the central rod (1) is connected to an end stop cylinder (13); the end stop cylinder (13) is respectively connected to two end stop connecting rods (8) and an auxiliary measuring rod (7) via an end stop measuring rod (10); there are three end stop measuring rods (10), and the connection points with the end stop cylinder (13) are three trisection points of the circular surface of the end stop cylinder (13); the length of the end stop connecting rod (8) is equal to the length of the end stop measuring rod (10).

2. A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity according to claim 1, characterized in that: The central rod (1) comprises a short rod and a long rod, and the short rod and the long rod are connected.

3. A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity according to claim 2, characterized in that: The central rod (1) is an L-shaped rod.

4. A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity according to claim 1, characterized in that: The diameter of the stop cylinder (13) is greater than or equal to the minimum diameter of the tapered hole to be measured, and smaller than the maximum diameter of the tapered hole to be measured.

5. A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity according to claim 3, characterized in that: The short rod of the central rod (1) is a transverse part in the L-shaped structure, and its length is equal to the radius of the disc of the stop end part.

6. A tool for measuring the angle of a tapered hole at the bottom of a deep groove cavity according to claim 1, characterized in that: The auxiliary measuring rod (7) and the central rod (1) have the same length at their long ends.

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