Integrated pneumatic measuring device
By designing an integrated pneumatic measuring device, the simultaneous measurement of the inner and outer diameters of the parts is achieved, which solves the problems of low measurement accuracy and low efficiency in traditional measurement methods, and improves the measurement efficiency and accuracy.
Patent Information
- Application Number
- CN202421529690.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-01
AI Technical Summary
When traditional measurement methods measure the inner and outer diameters of parts, there are problems such as low measurement accuracy and low measurement efficiency, especially when the size and shape of the product parts are different, it is difficult to accurately measure the outer diameter micrometer.
An integrated pneumatic measuring device is designed, including a base, a double-hole pneumatic meter inner diameter measuring head and a double-hole outer diameter measuring head. The double-hole pneumatic meter inner diameter measuring head is set inside the double-hole outer diameter measuring head to form an integrated pneumatic detector to achieve simultaneous measurement of the inner and outer diameters.
Through the integrated pneumatic measurement device, the internal and external diameters of the parts are quickly and accurately measured, improving the measurement efficiency and accuracy, and solving the problems of low efficiency and low accuracy in traditional measurement methods.
Smart Images
Figure CN222812358U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of measuring instruments, in particular to an integrated pneumatic measuring device. Background Art
[0002] During the ramp-up phase of mass production, as part of safe launch control, full inspection of critical dimensions of parts is performed to monitor the stability of early-stage part quality. This inspection primarily covers the outer and inner diameters.
[0003] The conventional measurement method is to first measure the outside diameter of the part using a conventional outside micrometer, and then use an inside diameter gauge to measure the inside diameter of the part. However, because the effective contact length of the outside micrometer is less than 1.5mm when measuring the part body, the measurement accuracy is easily affected by transition chamfers and arcs. Moreover, the different sizes and shapes of product parts can also cause considerable measurement difficulties. The outside micrometer cannot accurately detect the diameter measurement point on every part to be measured, which in turn affects the measurement accuracy.
[0004] In addition, the conventional method is to first use an outside micrometer to measure the outer diameter of the product part, and then use an inside diameter gauge to measure the inner diameter of the product part. This step-by-step measurement method leads to low measurement efficiency, especially for some product parts that are difficult to measure accurately, which require repeated measurement and judgment of their size.
[0005] Therefore, how to complete the measurement of the inner and outer diameter dimensions of parts in one go, improve measurement efficiency, and ensure measurement accuracy is of great significance for observing the quality of early parts. Utility Model Content
[0006] The main technical problem solved by the utility model is to provide an integrated pneumatic measuring device to solve the problems of low measuring accuracy and low measuring efficiency caused by traditional measuring fixtures.
[0007] In order to solve the above technical problems, the present invention adopts a technical solution: an integrated pneumatic measuring device, comprising: a base, a double-hole pneumatic measuring instrument inner diameter measuring head, and a double-hole outer diameter measuring head; the double-hole pneumatic measuring instrument inner diameter measuring head and the double-hole outer diameter measuring head are both mounted on the base;
[0008] The inner diameter measuring head of the double-hole pneumatic measuring instrument is arranged inside the double-hole outer diameter measuring head.
[0009] Preferably, a first air flow channel is provided along the central axis of the inner diameter measuring head of the double-hole pneumatic measuring instrument.
[0010] Preferably, an air outlet channel 1 is provided in the inner diameter measuring head of the double-hole pneumatic measuring instrument, the air outlet channel 1 is connected to the first air flow channel, and the central axis of the air outlet channel 1 is perpendicular to the central axis of the inner diameter measuring head of the double-hole pneumatic measuring instrument;
[0011] An air outlet hole 1 is opened on the outer wall of the inner diameter measuring head of the double-hole pneumatic measuring instrument, and the air outlet hole 1 is communicated with the air outlet channel 1.
[0012] Preferably, there are two air outlet channels;
[0013] Correspondingly, there are two air outlet holes.
[0014] Preferably, the inner diameter measuring head of the double-hole pneumatic measuring instrument is a hard alloy cylinder.
[0015] Preferably, the double-hole outer diameter measuring head is annular, and a slot with a limiting function is provided on the annular shape.
[0016] Preferably, the double-hole outer diameter measuring head is provided with a second air flow channel and a second air outlet channel;
[0017] The second air flow channel is in communication with the second air outlet channel;
[0018] The second air outlet channel is communicated with the second air outlet hole provided on the outer wall of the double-hole outer diameter measuring head.
[0019] Preferably, two second air flow channels are symmetrically arranged along the central axis of the double-hole outer diameter measuring head, and the second air flow channels are perpendicular to the cross section where the inner diameter of the workpiece to be measured is located; correspondingly, there are two second air outlet channels.
[0020] The beneficial effects of the utility model are:
[0021] (1) The utility model provides an integrated pneumatic measuring device with a simple structure and easy use. By installing the inner diameter measuring head of a double-hole pneumatic measuring instrument and the outer diameter measuring head of a double-hole pneumatic measuring instrument on a base, the inner diameter measuring head of the double-hole pneumatic measuring instrument is arranged inside the outer diameter measuring head of the double-hole pneumatic measuring instrument to form an integrated pneumatic inspection fixture. The inner and outer diameters of the workpiece to be measured can be quickly measured in an integrated manner without the need for step-by-step measurement, thereby reducing time costs and improving measurement efficiency. Combined with the high-precision measurement of pneumatic measurement, the measurement accuracy of the workpiece to be measured is guaranteed.
[0022] (2) The utility model provides an integrated pneumatic measuring device, wherein a first air flow channel is provided in the inner diameter measuring head of a double-hole pneumatic measuring instrument, and two air outlet channels connected to the air flow and an air outlet hole are provided in the inner diameter measuring head. The central axis of the air outlet channel is perpendicular to the central axis of the inner diameter measuring head, ensuring that the central axes of the two air outlet channels are in the same plane. By using the cross-sectional measuring points on the workpiece to be measured, the maximum inner diameter size on the same cross section of the workpiece to be measured can be measured at one time, with high measurement efficiency and more accurate measurement.
[0023] (3) The utility model provides an integrated pneumatic measuring device, in which two second air flow channels are arranged in a double-hole outer diameter measuring head, and the second air flow channels are perpendicular to the cross section where the inner diameter of the workpiece to be measured is located, ensuring that the central axes of the two air flow channels and the outer diameter of the workpiece to be measured are in the same plane, and can perfectly avoid the arcs and chamfers at both ends of the outer diameter to intercept the effective outer diameter position for measurement, ensuring that the outer diameter measurement is stable and accurate while also ensuring that the inner diameter measurement is accurate and reliable, solving the problem that the outer diameter micrometer cannot accurately detect the diameter measurement point for each part to be measured, affecting the measurement accuracy.
[0024] (4) The utility model provides an integrated pneumatic measuring device, wherein the double-hole outer diameter measuring head is annular, and a slot with a limiting function is provided on the annular ring. The limiting structure is beneficial to the stability and accuracy of the measurement process of the workpiece to be measured. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a structural diagram of an integrated pneumatic measuring device of the utility model;
[0026] Figure 2 1 is a schematic cross-sectional view of an integrated pneumatic measuring device;
[0027] The markings of the components in the accompanying drawings are as follows:
[0028] 1. Base; 2. Double-hole pneumatic measuring instrument inner diameter measuring head; 21. First air flow channel; 22. Air outlet channel 1; 23. Air outlet hole 1; 3. Double-hole outer diameter measuring head; 31. Second air flow channel; 32. Air outlet channel 2; 33. Air outlet hole 2; 4. Workpiece to be measured. DETAILED DESCRIPTION
[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.
[0030] Example:
[0031] This embodiment introduces the structure of an integrated pneumatic measuring device. Figure 1 As shown, Figure 1 The schematic diagram of the structure of an integrated pneumatic measuring device of the present invention is shown. The integrated pneumatic measuring device comprises: a base 1, a double-hole pneumatic measuring instrument inner diameter measuring head 2, and a double-hole outer diameter measuring head 3; both the double-hole pneumatic measuring instrument inner diameter measuring head 2 and the double-hole outer diameter measuring head 3 are mounted on the base 1; the double-hole pneumatic measuring instrument inner diameter measuring head 2 is disposed within the double-hole outer diameter measuring head 3.
[0032] Reference Attachment Figure 2 As shown, Figure 2 1 is a cross-sectional view of an integrated pneumatic measuring device. A first air flow channel 21 is provided along the central axis of the inner diameter measuring head 2 of the double-hole pneumatic measuring instrument.
[0033] Furthermore, an outlet channel 1 22 is provided within the dual-hole pneumatic measuring instrument's inner diameter measuring head 2. The outlet channel 1 22 communicates with the first airflow channel 21, and the central axis of the outlet channel 1 22 is perpendicular to the central axis of the dual-hole pneumatic measuring instrument's inner diameter measuring head 2. An outlet hole 1 23 is provided on the outer wall of the dual-hole pneumatic measuring instrument's inner diameter measuring head 2, communicating with the outlet channel 1 22. In a preferred embodiment, there are two outlet channels 1 22, and correspondingly, there are two outlet holes 1 23.
[0034] In this embodiment, the central axis of the air outlet channel 1 is perpendicular to the central axis of the inner diameter measuring head of the double-hole pneumatic measuring instrument, ensuring that the central axes of the two air outlet channels are in the same plane. Through the cross-sectional measurement points on the workpiece to be measured, the maximum inner diameter size on the same cross-section of the workpiece to be measured can be measured at one time, with high measurement efficiency and more accurate measurement.
[0035] In a preferred embodiment, the inner diameter measuring head 2 of the double-hole pneumatic measuring instrument is a carbide cylinder. The pneumatic measuring head is a non-contact measurement, which can reduce wear of the measuring head, extend the service life of the measuring head, and save costs.
[0036] In a preferred embodiment, the double-hole outer diameter measuring head 3 is annular, and a slot with a limiting function is provided on the ring. The limiting structure is beneficial to the stability and accuracy of the workpiece during measurement, and is convenient for taking the measured part.
[0037] In the preferred embodiment, the dual-aperture outer diameter measuring head 3 is internally provided with a second airflow channel 31 and a second air outlet channel 32. The second airflow channel 31 communicates with the second air outlet channel 32, which in turn communicates with a second air outlet hole 33 provided on the outer wall of the dual-aperture outer diameter measuring head 3. Two second airflow channels 31 are symmetrically arranged along the central axis of the dual-aperture outer diameter measuring head 3, perpendicular to the cross-section of the inner diameter of the workpiece 4 to be measured. Accordingly, there are two second air outlet channels 32.
[0038] In this embodiment, the second air flow channel is perpendicular to the cross-section where the inner diameter of the workpiece to be measured is located, ensuring that the central axes of the two air flow channels are in the same plane as the outer diameter of the workpiece to be measured, and can perfectly avoid the arcs and chamfers at both ends of the outer diameter of the workpiece to be measured, so as to intercept the effective outer diameter position for measurement, ensuring stable and accurate outer diameter measurement while also ensuring accurate and reliable inner diameter measurement, solving the problem that the outside micrometer cannot accurately detect the diameter measurement point for each part to be measured, affecting the measurement accuracy.
[0039] In use, after connecting to the air source and a dual-channel display, the integrated pneumatic measuring device simultaneously measures the inner and outer diameters of the workpiece being measured. This allows for integrated measurement, easy access to measurement data, and convenient part removal. This integrated pneumatic measuring device achieves a rapid measurement cycle of 1 second per piece, a 200% improvement over the 3 seconds required for traditional measurement (using an outside micrometer and an inside gauge to measure the outside and inside diameters, respectively). This significantly improves measurement efficiency while ensuring accuracy.
[0040] In this embodiment, the integrated pneumatic measuring device has a simple overall structure and is easy to use. By installing both the inner diameter measuring head of the double-hole pneumatic measuring instrument and the outer diameter measuring head of the double-hole pneumatic measuring instrument on the base, the inner diameter measuring head of the double-hole pneumatic measuring instrument is set inside the outer diameter measuring head of the double-hole, forming an integrated pneumatic inspection fixture. The inner and outer diameters of the workpiece to be measured can be quickly measured in an integrated manner without the need for step-by-step measurement, reducing time costs and improving measurement efficiency. Combined with the high-precision measurement of pneumatic measurement, the measurement accuracy of the workpiece to be measured is guaranteed. Compared with traditional inner diameter inductive probes and outer diameter micrometer measurements, the design of integrated inner and outer diameter quick measurement requires fewer measurements. In addition, the limit design of the inspection fixture greatly improves the stability and accuracy of workpiece measurement and makes operation easier.
[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. An integrated pneumatic measuring device, characterized in that: include: A base (1), a double-hole pneumatic measuring instrument inner diameter measuring head (2), and a double-hole outer diameter measuring head (3); the double-hole pneumatic measuring instrument inner diameter measuring head (2) and the double-hole outer diameter measuring head (3) are both mounted on the base (1); The double-hole pneumatic measuring instrument inner diameter measuring head (2) is arranged inside the double-hole outer diameter measuring head (3).
2. The integrated pneumatic measuring device according to claim 1, characterized in that: A first air flow channel (21) is arranged along the central axis of the inner diameter measuring head (2) of the double-hole pneumatic measuring instrument.
3. The integrated pneumatic measuring device according to claim 2, characterized in that: An air outlet channel 1 (22) is provided in the double-hole pneumatic measuring instrument inner diameter measuring head (2), the air outlet channel 1 (22) is connected to the first air flow channel (21), and the central axis of the air outlet channel 1 (22) is perpendicular to the central axis of the double-hole pneumatic measuring instrument inner diameter measuring head (2); An air outlet hole (23) is provided on the outer wall of the inner diameter measuring head (2) of the double-hole pneumatic measuring instrument, and the air outlet hole (23) is connected to the air outlet channel (22).
4. The integrated pneumatic measuring device according to claim 3, characterized in that: The number of the air outlet channels 1 (22) is two; Correspondingly, there are two air outlet holes (23).
5. The integrated pneumatic measuring device according to claim 1, characterized in that: The inner diameter measuring head (2) of the double-hole pneumatic measuring instrument is a hard alloy cylinder.
6. The integrated pneumatic measuring device according to claim 1, characterized in that: The double-hole outer diameter measuring head (3) is annular, and a clamping groove with a limiting function is provided on the annular shape.
7. The integrated pneumatic measuring device according to claim 1 or 6, characterized in that: The double-hole outer diameter measuring head (3) is provided with a second air flow channel (31) and a second air outlet channel (32) inside; The second air flow channel (31) is in communication with the second air outlet channel (32); The second air outlet channel (32) is communicated with the second air outlet hole (33) provided on the outer wall of the double-hole outer diameter measuring head (3).
8. The integrated pneumatic measuring device according to claim 7, characterized in that: Two second air flow channels (31) are symmetrically arranged along the central axis of the double-hole outer diameter measuring head (3), and the second air flow channels (31) are perpendicular to the cross section where the inner diameter of the workpiece (4) to be measured is located; Correspondingly, there are two air outlet channels 2 (32).