Measuring device for measuring relative position degree of cross hole
By designing a compact measuring device, the direction of conversion displacement and dial meter of the directional seat are corrected, the problem of measurement difficulties in small spaces in mechanical processing is solved, and the precise measurement of the position degree of the workpiece is achieved.
Patent Information
- Application Number
- CN202421206789.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-30
AI Technical Summary
During the machining process, it is difficult for the prior art to accurately detect the relative position of the step surface of the counterbore bottom and the center of the side wall through hole in the narrow space inside the workpiece, and the electromagnetic suction block cannot be corrected and measured.
A measuring device including a support, a connecting plate, a fixed seat, a changing seat and a dial gauge is designed. The displacement direction is converted through the changing seat, making the device compact structure, easy to be placed in a narrow space, and through a dial gauge The table is fixed to the support for calibration.
It realizes accurate measurement in a narrow space, avoids measurement errors, is easy to use, and is suitable for measurement of multi-special workpieces.
Smart Images
Figure CN222298672U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of special measuring tools, and in particular relates to a measuring device for measuring the relative position of cross holes. Background Art
[0002] In the process of machining, checking whether the workpiece is qualified is an important task; in the process of checking the workpiece, the most difficult inspection task is to detect the position.
[0003] It is now necessary to detect the position of a workpiece. There is a countersunk hole inside the workpiece and a through hole on the side wall of the workpiece. It is now necessary to detect the relative position between the step surface at the bottom of the countersunk hole and the center of the through hole on the side wall. Since the position of the internal countersunk hole of the workpiece is relatively deep, the internal space is small. In the prior art, an electromagnetic suction block is generally used for measurement, but because the space inside the workpiece is small, if an electromagnetic suction block is used, correction cannot be performed and measurement cannot be performed. Utility Model Content
[0004] In view of the problems existing in the background technology, the utility model provides a measuring device for measuring the relative position of cross holes. The device converts the displacement direction through a direction-changing seat, making the structure of the device more compact, easy to put into a small space, and more convenient for observation.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a measuring device for measuring the relative position of cross holes, including a support, a connecting plate, a fixed seat, a changing seat and a micrometer, the upper end face of the support is connected to the lower end face of the connecting plate, the upper end face of the connecting plate is connected to the fixed seat, a horizontal through hole is provided in the middle of the fixed seat, a groove is provided at one end of the fixed seat, the changing seat is a "┛"-shaped bent plate, a pin hole is provided at the bending part of the changing seat, the changing seat is movably connected to the groove of the fixed seat by a pin, and a probe is provided on the lower end face of the changing seat; the micrometer probe of the micrometer passes through the through hole of the fixed seat, and the end of the micrometer probe contacts the right end face of the changing seat.
[0006] The support comprises an upper boss and a lower base, and a chamfer is arranged at the lower end of the base.
[0007] The lower end surface of the connecting plate is provided with a fixing hole, and the connecting plate is connected to the fixing seat through fixing bolts.
[0008] The distance between the center of the direction-changing seat pin hole and the probe axis is equal to the distance between the micrometer needle axis.
[0009] The beneficial effects of the utility model are as follows: the utility model provides a measuring device for measuring the relative position of cross holes. The micrometer is fixed on a support, which is convenient for calibration of the measuring device and easy to use. The displacement direction is converted by a direction-changing seat, making the structure of the device more compact, easy to put into a small space, and more convenient for observation. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is an axonometric view of the utility model.
[0011] Figure 2 It is a partial cross-sectional view of the utility model.
[0012] Figure 3 This is an enlarged view of point A.
[0013] Figure 4 It is a schematic diagram of the use of the utility model.
[0014] Figure 5 This is the main view of the support.
[0015] In the figure: 1, support, 11, boss, 12, base, 13, chamfer, 2, connecting plate, 3, fixed seat, 4, change-of-direction seat, 41, probe, 42, pin, 5, micrometer, 51, micrometer probe, 6, fixing bolt, 7, correction block, 8, workpiece, 81, positioning surface, 82, measuring surface. DETAILED DESCRIPTION
[0016] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0017] The following is combined with Figure 1-5 The specific implementation of the utility model is further elaborated in detail: a measuring device for measuring the relative position of a cross hole, comprising a support 1, a connecting plate 2, a fixing seat 3, a direction-changing seat 4 and a micrometer 5, wherein the support 1 comprises an upper boss 11 and a lower base 12, wherein the lower end of the base 12 is provided with a chamfer 13; in actual use, the outer wall of the boss 11 is provided with anti-slip grooves (such as Figure 5), the operator can hold here to rotate the device for adjustment; the chamfer 13 is to facilitate the placement of the base 12 into the countersunk hole of the workpiece; the upper end face of the support 1 is connected to the lower end face of the connecting plate 2, the upper end face of the connecting plate 2 is connected to the fixing seat 3, the lower end face of the connecting plate 2 is provided with a fixing hole, and the connecting plate 2 is connected to the fixing seat 3 through a fixing bolt 6; in actual use, the connecting plate 2 has multiple fixing holes, and multiple fixing holes can adjust the left and right positions of the fixing seat 3, so as to be suitable for the measurement of workpieces of multiple specifications;
[0018] A through hole in the horizontal direction is provided in the middle of the fixed seat 3, and a groove is provided at one end of the fixed seat 3; the direction-changing seat 4 is a "┛"-shaped bent plate, and a pin hole is provided at the bending part of the direction-changing seat 4. The direction-changing seat 4 is movably connected to the groove of the fixed seat 3 through a pin 42, and a probe 41 is provided on the lower end surface of the direction-changing seat 4; the micrometer needle 51 of the micrometer 5 passes through the through hole of the fixed seat 3, and the end of the micrometer needle 51 contacts the right end surface of the direction-changing seat 4; the distance between the center of the pin hole of the direction-changing seat 4 and the axis of the probe 41 is equal to the distance between the axis of the micrometer needle 51, (such as Figure 3 ) that is, a=b; during use, the probe 41 moves up and down according to the different measuring surfaces, and the direction-changing seat 4 transmits the displacement change of the probe 41 to the top of the micrometer probe 51, so that the measurement data is displayed on the micrometer 5, and the distance between the center of the pin hole of the direction-changing seat 4 and the axis of the probe 41 and the axis of the micrometer probe 51 is in a ratio of 1:1 to avoid measurement errors.
[0019] The use process of the utility model is as follows: first, assemble the device; after assembly, place the device on a workbench and calibrate it using the calibration block 7 (such as Figure 1-3 ); then place the calibrated device on the positioning surface 81 of the workpiece 8; (such as Figure 4 ) At this time, the base 12 of the support 1 is placed in the countersunk hole of the workpiece 8, and the lower end surface of the base 12 is in contact with the positioning surface 81 of the workpiece 8; the lower end of the probe 41 of the direction-changing seat 4 is in contact with the measuring surface 82 of the workpiece 8; after placement, the measurement personnel can rotate the support 1. During the rotation, the vertical height between the positioning surface 81 and the measuring surface 82 can be measured by the change of the numbers on the micrometer 5, and then the distance between the center of the circle where the measuring surface 82 is located and the positioning surface 81 can be obtained through calculation; finally, based on the obtained data, it can be judged whether the workpiece 8 is qualified.
[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
[0021] The parts not described in detail in this utility model are prior art.
Claims
1. A measuring device for measuring the relative position of a cross hole, comprising a support (1), a connecting plate (2), a fixing seat (3), a direction-changing seat (4) and a micrometer (5), wherein: The upper end surface of the support (1) is connected to the lower end surface of the connecting plate (2), and the upper end surface of the connecting plate (2) is connected to the fixed seat (3). A through hole in the horizontal direction is provided in the middle of the fixed seat (3), and a groove is provided at one end of the fixed seat (3). The direction-changing seat (4) is a "┛"-shaped bent plate, and a pin hole is provided at the bending part of the direction-changing seat (4). The direction-changing seat (4) is movably connected to the groove of the fixed seat (3) through a pin (42), and a probe (41) is provided on the lower end surface of the direction-changing seat (4); a micrometer probe (51) of the micrometer (5) passes through the through hole of the fixed seat (3), and the end of the micrometer probe (51) contacts the right end surface of the direction-changing seat (4).
2. A measuring device for measuring the relative position of cross holes according to claim 1, characterized in that: The support (1) comprises an upper boss (11) and a lower base (12), and a chamfer (13) is provided at the lower end of the base (12).
3. The measuring device for measuring the relative position of cross holes according to claim 1, characterized in that: A fixing hole is provided on the lower end surface of the connecting plate (2), and the connecting plate (2) is connected to the fixing seat (3) via fixing bolts (6).
4. The measuring device for measuring the relative position of cross holes according to claim 1, characterized in that: The distance between the center of the pin hole of the direction-changing seat (4) and the axis of the measuring head (41) is equal to the distance between the axis of the micrometer measuring needle (51).