Inner diameter measuring device for workpiece
By designing a workpiece inner diameter measuring device, which combines a measuring rod and a measuring tee, the inner diameter of the workpiece can be directly measured, solving the problem of large errors in existing technologies and achieving accurate and convenient measurement results.
Patent Information
- Application Number
- CN202520139621.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The existing dial indicator cannot accurately measure the workpiece shown in Figure 4. It is necessary to measure the diameter of the inner shaft and the distance from both sides of the inner shaft to the inner wall of the cylinder and add them together, or subtract the wall thickness from the outer diameter of the cylinder, which leads to large measurement errors and is prone to calculation errors.
A workpiece inner diameter measuring device was designed, including a measuring rod, a measuring tee, a movable measuring head, a positioning bridge, and a fixed measuring head. The movable and fixed measuring heads measure the diameter of the inner wall of the cylinder, reducing measurement errors and directly obtaining the measurement results.
It enables direct measurement of the workpiece shown in Figure 4, reduces measurement errors, avoids calculation errors, and provides accurate and convenient measurement results.
Smart Images
Figure CN223663894U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to measuring tool technical field, specifically is a workpiece is with internal diameter measuring device. BACKGROUND
[0002] The internal diameter dial gauge (dial gauge) is a kind of internal dimension measuring tool, which converts the linear displacement of the movable measuring head into angular displacement of the dial gauge (dial gauge) pointer through mechanical transmission, and reads the data by the dial gauge (dial gauge). It is a measuring tool for measuring internal dimensions by comparison method, which is a combination of internal measuring lever and dial gauge (dial gauge), and can be used to measure hole diameter, slot width and other geometric shapes and position errors.
[0003] The existing internal diameter dial gauge (dial gauge) cannot accurately measure Figure 4 the workpiece shown in the figure. As Figure 4 shown, the measured workpiece includes a cylinder and an inner shaft fixed at the center inside the cylinder. Due to the setting of the inner shaft, the internal diameter of the cylinder cannot be directly measured by using the internal diameter dial gauge (dial gauge), and the diameter of the inner shaft and the distance from the inner shaft on both sides to the inner wall of the cylinder need to be measured and added to obtain the result, or the external diameter of the cylinder needs to be measured and the wall thickness on both sides of the cylinder needs to be subtracted to obtain the result. The measurement error is large, and calculation errors are easy to occur. Therefore, it is urgent to set up an internal diameter measuring device suitable for Figure 4 the workpiece shown in the figure. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing an internal diameter measuring device for workpiece.
[0005] An internal diameter measuring device for workpiece, comprising a measuring rod, a measuring table is detachably arranged at the top of the measuring rod, the bottom of the measuring rod is fixedly connected with the top of a measuring tee pipe, a movable measuring head is arranged at one end of the measuring tee pipe, an extension connecting rod is arranged at the other end of the measuring tee pipe, a fixed measuring head is arranged at the end of the extension connecting rod away from the movable measuring head, and an arc bending part is arranged in the middle of the extension connecting rod.
[0006] Further, a clasp ring is arranged at the top of the measuring rod, the measuring end of the measuring table penetrates through the clasp ring and extends into the inside of the measuring rod, and locking bolts for fixing the clasp ring and the measuring end of the measuring table are arranged outside the clasp ring.
[0007] Further, positioning guard bridges are rotatably arranged on the left and right sides of the movable measuring head of the measuring tee pipe.
[0008] Further, the measuring table is an internal diameter dial gauge or an internal diameter dial gauge.
[0009] Further, an insulating handle is fixedly arranged on the outside of the upper part of the measuring rod.
[0010] In conclusion, the utility model has the following beneficial effects:
[0011] The utility model can directly measure the workpiece Figure 4 The utility model discloses a workpiece inner diameter measuring device, which directly measures the workpiece as shown in the drawings, does not need to pass through measuring multiple positions, and can directly obtain the measuring result without addition or subtraction calculation. BRIEF DESCRIPTION OF DRAWINGS
[0012] The utility model will be further explained in combination with the drawings and specific embodiments:
[0013] Figure 1 It is a stereogram structure schematic diagram of the workpiece inner diameter measuring device of the utility model;
[0014] Figure 2 It is a stereogram structure schematic diagram when the utility model measures the workpiece;
[0015] Figure 3 It is a plan view when the utility model measures the workpiece;
[0016] Figure 4 It is a stereogram structure schematic diagram of the workpiece of the utility model.
[0017] In the drawing: 1 measuring rod, 2 measuring table, 3 locking bolt, 4 snap ring, 5 heat insulation handle, 6 measuring tee pipe, 7 movable measuring head, 8 positioning protective bridge, 9 extension connecting rod, 10 arc-shaped bending part, 11 fixed measuring head, 12 cylinder, 13 inner shaft. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.
[0019] The following will be combined with the drawings Figures 1-4 The utility model will be further explained:
[0020] The utility model provides a kind of inner diameter measuring device for workpiece, including measuring rod 1, the top of measuring rod 1 is detachably provided with measuring table 2, measuring table 2 is inner diameter dial gauge or inner diameter dial gauge, the outside of measuring rod 1 upper portion is fixedly provided with heat insulating handle 5, the bottom of measuring rod 1 is fixedly connected with the top of measuring three-way pipe 6, measuring three-way pipe 6 is provided with movable measuring head 7 in one end, measuring three-way pipe 6 is provided with the left and right sides of movable side head 7 end both rotatably arranged with positioning bridge 8, measuring three-way pipe 6 is provided with extension connecting rod 9 in other end, extension connecting rod 9 is provided with fixed measuring head 11 in the end away from movable side head 7, the middle part of extension connecting rod 9 is provided with arc bending part 10.
[0021] In the embodiment, the measured workpiece, as shown in the drawings, includes a cylinder 12 and an inner shaft 13 fixed at the inner center of the cylinder 12. Figure 4
[0022] The inner diameter measuring device for workpiece is used, the fixed measuring head 11 is contacted with the upper part of the inner wall of the cylinder 12, then the end of the measuring three-way pipe 6 provided with the movable measuring head 7 is moved downward through the heat insulating handle 5, while ensuring that the inner shaft 13 is movably arranged in the arc bending part 10, the movable measuring head 7 and the fixed measuring head 11 are measured in the diameter direction of the inner wall of the cylinder 12 by moving the positioning bridge 8, and the measurement error is reduced.
[0023] In the description of the patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the patent.
[0024] In the description of the patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For ordinary skilled in the art, the specific meaning of the above terms in the patent can be understood according to the specific circumstances.
Claims
1. An inner diameter measuring device for a workpiece, characterized by, The utility model relates to a measuring rod (1), the top of the measuring rod (1) is detachably provided with a measuring table (2), the bottom of the measuring rod (1) is fixedly connected with the top of a measuring tee pipe (6), one end of the measuring tee pipe (6) is provided with a movable measuring head (7), the other end of the measuring tee pipe (6) is provided with an extension connecting rod (9), the end of the extension connecting rod (9) away from the movable measuring head (7) is provided with a fixed measuring head (11), and the middle part of the extension connecting rod (9) is provided with an arc-shaped bending part (10).
2. An inner diameter measuring device for a workpiece as defined in claim 1, wherein, The top of the measuring rod (1) is provided with a clasp ring (4), the measuring end of the measuring table (2) penetrates through the clasp ring (4) and extends to the inside of the measuring rod (1), and the outside of the clasp ring (4) is provided with locking bolts (3) for fixing the clasp ring (4) and the measuring end of the measuring table (2).
3. An inner diameter measuring device for a workpiece as defined in claim 2, wherein, The measuring tee pipe (6) is provided with a positioning protective bridge (8) rotatably arranged on the left side and the right side of one end of the movable measuring head (7).
4. An inner diameter measuring device for a workpiece as defined in claim 1, wherein, The measuring table (2) is an internal diameter dial gauge or an internal diameter micrometer.
5. An inner diameter measuring device for a workpiece as defined in claim 1, wherein, The outside of the upper part of the measuring rod (1) is fixedly provided with a heat insulation handle (5).