Pneumatic type ring piece airflow detection clamp

Abstract

The invention provides a pneumatic ring piece airflow detection clamp, which relates to the technical field of machining and comprises a bottom plate, a base, a supporting and positioning mechanism, a pneumatic pressing mechanism and a reversing mechanism, the base, the supporting and positioning mechanism, the pneumatic pressing mechanism and the reversing mechanism are all arranged on the bottom plate. The supporting and positioning mechanism is arranged outside the base, and the annular workpiece penetrates through the supporting and positioning mechanism and abuts against the base. The pneumatic pressing mechanisms are symmetrically arranged on the two sides of the base. Airflow is communicated with the pneumatic pressing mechanism through the reversing mechanism; the reversing mechanism is used for controlling inflow or outflow of airflow, and then the pneumatic pressing mechanism is controlled to press or loosen the annular workpiece. The pneumatic pressing mechanism is adopted to ensure that the annular workpiece is uniformly and stably pressed, and the situation that traditional manual pressing is not uniform is avoided, so that the clamping quality is greatly improved, airflow leakage caused by improper clamping is reduced, and the stability and accuracy of the annular workpiece during airflow detection are ensured.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a pneumatic ring-type airflow detection fixture. Background Technology

[0002] An airflow ring is a workpiece composed of multiple ring segments and is widely used in various airtightness tests and airflow detection processes. Due to its complex internal structure and annular characteristics, the airflow ring is prone to problems such as inaccurate positioning and uneven clamping during clamping. These problems directly affect the airtightness test results of the airflow ring, making it impossible to clearly distinguish whether the leakage is due to poor airtightness of the ring itself or to improper positioning or uneven clamping force during clamping.

[0003] Traditional clamping methods often rely on manual tightening, which makes it difficult to guarantee the stability and accuracy of the ring during airflow testing. Due to inconsistent clamping force, gaps may exist between the ring and the fixture, causing airflow leakage during testing, thus affecting the reliability of the test results and measurement efficiency. In practical applications, insecure clamping of the airflow ring often leads to airflow leakage, making it impossible to accurately measure its airtightness, thereby affecting product quality control and verification processes. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a pneumatic ring airflow detection fixture that can solve the technical problem that traditional clamping methods often rely on manual clamping, making it difficult to ensure the stability and accuracy of the ring during airflow detection.

[0005] This invention provides a pneumatic ring airflow detection fixture, comprising: a base plate, a base, a support and positioning mechanism, a pneumatic clamping mechanism, and a reversing mechanism; The base, support and positioning mechanism, pneumatic clamping mechanism and reversing mechanism are all mounted on the base plate; The support and positioning mechanism is located outside the base, and the annular workpiece passes through the support and positioning mechanism and abuts against the base; The pneumatic clamping mechanism is symmetrically arranged on both sides of the base; The airflow is connected to the pneumatic pressing mechanism through the reversing mechanism; The reversing mechanism is used to control the inflow or outflow of airflow, thereby controlling the pneumatic clamping mechanism to clamp or loosen the annular workpiece.

[0006] The beneficial effects of the technical solutions provided by the embodiments of the present invention include at least the following: In this embodiment of the invention, a pneumatic clamping mechanism is used to ensure uniform and stable clamping of the ring-shaped workpiece, avoiding the unevenness of traditional manual clamping, thereby greatly improving the clamping quality, reducing airflow leakage caused by improper clamping, and ensuring the stability and accuracy of the ring-shaped workpiece during airflow detection. Attached Figure Description

[0007] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0008] Figure 1 This is a schematic diagram of the structure of a pneumatic ring-type airflow detection fixture containing a ring-shaped workpiece, provided in an embodiment of the present invention.

[0009] Figure 2 This is a schematic diagram of the structure of a pneumatic ring-type airflow detection fixture without a ring-shaped workpiece provided in an embodiment of the present invention.

[0010] Figure 3 This is a schematic diagram of a pneumatic clamping mechanism provided in an embodiment of the present invention.

[0011] Explanation of reference numerals in the attached drawings: 1-base plate; 2-base; 3-support and positioning mechanism; 31-support plate; 32-connecting plate; 33-roller; 4-pneumatic pressing mechanism; 41-base; 42-pneumatic device mounting seat; 43-pneumatic pressing device; 44-pneumatic pressure regulating valve; 45-cylinder control plate; 5-reversing mechanism; 51-handle; 6-ring workpiece. Detailed Implementation

[0012] To enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0013] Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts disclosed in this invention.

[0014] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention.

[0015] Reference manual attached Figures 1 to 3 The present invention provides a structure for a pneumatic ring airflow detection fixture, comprising: a base plate 1, a base 2, a support and positioning mechanism 3, a pneumatic clamping mechanism 4, and a reversing mechanism 5.

[0016] The base 2, the support and positioning mechanism 3, the pneumatic pressing mechanism 4, and the reversing mechanism 5 are all mounted on the base plate 1.

[0017] Optionally, the base 2 is positioned at the center of the base plate 1.

[0018] The support and positioning mechanism 3 is located outside the base 2, and the annular workpiece 6 passes through the support and positioning mechanism 3 and abuts against the base 2.

[0019] The pneumatic clamping mechanism 4 is symmetrically arranged on both sides of the base 2.

[0020] The airflow is connected to the pneumatic pressing mechanism 4 through the reversing mechanism 5.

[0021] The reversing mechanism 5 is used to control the inflow or outflow of airflow, thereby controlling the pneumatic clamping mechanism 4 to clamp or loosen the annular workpiece 6.

[0022] In this embodiment of the invention, a pneumatic clamping mechanism is used to ensure uniform and stable clamping of the ring-shaped workpiece, avoiding the unevenness of traditional manual clamping, thereby greatly improving the clamping quality, reducing airflow leakage caused by improper clamping, and ensuring the stability and accuracy of the ring-shaped workpiece during airflow detection.

[0023] In one possible implementation, the support positioning mechanism 3 includes: a support plate 31, a connecting plate 32, and a roller 33. The base 2 has open clearance areas on both sides. Two support plates 31 are respectively disposed in the clearance areas on both sides and connected to the base 2. The connecting plate 32 is connected to the base 2 and to the two support plates 31. A roller 33 is disposed between the two support plates 31, and the roller 33 is used to support the annular workpiece 6.

[0024] Furthermore, the connecting plate 32 is connected to the two support plates 31 by welding.

[0025] Furthermore, pin holes are provided on the two support plates 31, and the roller 33 is connected to the two support plates 31 by connecting pins.

[0026] In this embodiment of the invention, by connecting the support plate 31 to the connecting plate 32 and the base 2, and by setting a roller 33 between the two support plates 31, the positioning stability and support capacity of the annular workpiece 6 are effectively improved. The welding of the connecting plate 32 to the support plate and the connection of the roller to the support plate via connecting pins enhance the overall structural stability and ensure accurate positioning of the annular workpiece during the inspection process. The roller 33 reduces friction on the annular workpiece, improves its sliding properties in the fixture, and prevents inaccurate positioning or damage to the annular workpiece due to excessive friction, further ensuring the accuracy and stability of airflow detection.

[0027] In one possible implementation, the pneumatic clamping mechanism 4 includes: a base 41, a pneumatic device mounting base 42, a pneumatic clamping device 43, a pneumatic pressure regulating valve 44, and a cylinder control plate 45. The base 41 is disposed on both sides of the base 2 and is connected to the base plate 1. The base 41 is also connected to the pneumatic device mounting base 42. The pneumatic clamping device 43 and the pneumatic pressure regulating valve 44 are both disposed on the pneumatic device mounting base 42. The pneumatic pressure regulating valve 44 is connected to the pneumatic clamping device 43 through a pipeline, and the pneumatic clamping device 43 is connected to the cylinder control plate 45.

[0028] The airflow passes through the pneumatic pressure regulating valve 44 and then enters the pneumatic clamping device 43. The pneumatic clamping device 43 controls the clamping or loosening of the pressure plate 45 through the cylinder, thereby clamping or loosening the annular workpiece 6.

[0029] In this embodiment of the invention, by integrating the pneumatic clamping mechanism 4 into the base 41, the pneumatic device mounting base 42, the pneumatic clamping device 43, the pneumatic pressure regulating valve 44, and the cylinder-controlled pressure plate 45, the clamping force of the annular workpiece 6 can be precisely controlled. Airflow enters the pneumatic clamping device 43 after passing through the pneumatic pressure regulating valve 44, and the cylinder controls the movement of the pressure plate 45 to achieve stable clamping or loosening of the annular workpiece. This design ensures that the annular workpiece is always subjected to a uniform and adjustable clamping force during the testing process, avoiding airflow leakage caused by uneven clamping force, and significantly improving the accuracy and stability of the testing. At the same time, the pneumatic pressure regulating valve makes the adjustment of the clamping force more flexible and precise, improving the ease of operation and adaptability of the equipment.

[0030] It should be noted that the airflow is adjusted by the pneumatic pressure regulating valve 44, thereby adjusting the clamping force to ensure that the annular workpiece is tightly pressed onto the base 2. During airflow testing, it is tightly connected to the base 2. This minimizes air leakage during the testing process, resulting in high stability and consistency of the measurement results, ensuring accuracy.

[0031] Furthermore, the base 41 is used to adjust the angle of the pneumatic device mounting base 42. The pneumatic device mounting base 42 has holes around its perimeter. The pneumatic device mounting base 42 is connected to the base 41 by bolts. The pneumatic clamping device 43 is connected to the pneumatic device mounting base 42 by bolts.

[0032] Furthermore, the cylinder control plate 45 is mounted on the pneumatic clamping device 43 via a locking mechanism.

[0033] It should be noted that by mounting the cylinder-controlled pressure plate 45 onto the pneumatic clamping device 43 via a locking mechanism, the pressure plate is securely fixed during operation, preventing loosening or displacement during pneumatic system operation. The locking mechanism provides additional stability, making the application of clamping force more precise and reliable. This not only improves operational safety but also enhances the controllability of the clamping process, ensuring that the annular workpiece 6 maintains a stable clamping state throughout the entire inspection process, thereby improving the accuracy and consistency of airflow detection.

[0034] Optionally, the number of pneumatic clamping mechanisms 4 is four.

[0035] In one possible implementation, the reversing mechanism 5 includes a handle 51 and a reversing valve. The reversing valve is connected to the pneumatic clamping mechanism 4 via a pipeline. The reversing valve is controlled by the handle 51, thereby controlling the inflow or outflow of airflow.

[0036] In this embodiment of the invention, the operator can easily control the pneumatic clamping process by controlling the reversing valve via handle 51, quickly switching the clamping and loosening states of the annular workpiece, thus improving operational flexibility and efficiency. Simultaneously, the connection between the reversing valve and the pneumatic clamping mechanism ensures smooth airflow switching, guaranteeing rapid response and stability of the clamping force, thereby improving the reliability and accuracy of the entire testing process.

[0037] Furthermore, the specific steps for clamping using the pneumatic ring airflow detection fixture provided by this invention include: Step 1: Place the ring-shaped workpiece on the base 2 and slowly lower it to the axial positioning surface using pulleys. At this point, the inner back position and axial direction of the ring-shaped workpiece are fixed. Step 2: Open the reversing valve to ensure that each pneumatic clamping device 43 can clamp the annular workpiece, and then adjust the pneumatic pressure regulating valve 44 to ensure that the clamping force applied to the annular workpiece by each cylinder control plate 45 is consistent.

[0038] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic ring-type airflow detection fixture, characterized in that, include: Base plate, base, support and positioning mechanism, pneumatic clamping mechanism and reversing mechanism; The base, support and positioning mechanism, pneumatic clamping mechanism and reversing mechanism are all mounted on the base plate; The support and positioning mechanism is located outside the base, and the annular workpiece passes through the support and positioning mechanism and abuts against the base; The pneumatic clamping mechanism is symmetrically arranged on both sides of the base; The airflow is connected to the pneumatic pressing mechanism through the reversing mechanism; The reversing mechanism is used to control the inflow or outflow of airflow, thereby controlling the pneumatic clamping mechanism to clamp or loosen the annular workpiece.

2. The pneumatic ring-type airflow detection fixture according to claim 1, characterized in that, The base is located at the center of the base plate.

3. The pneumatic ring-type airflow detection fixture according to claim 1, characterized in that, The support and positioning mechanism includes: a support plate, a connecting plate, and rollers; The base has hollowed-out clearance areas on two sides. Two support plates are respectively set in the clearance areas on both sides and connected to the base. The connecting plate is connected to the base and to the two support plates. A roller is set between the two support plates to support the annular workpiece.

4. The pneumatic ring-type airflow detection fixture according to claim 3, characterized in that, The connecting plate is connected to the two support plates by welding.

5. The pneumatic ring-type airflow detection fixture according to claim 3, characterized in that, The two support plates are provided with pin holes, and the roller is connected to the two support plates by connecting pins.

6. The pneumatic ring-type airflow detection fixture according to claim 1, characterized in that, The pneumatic clamping mechanism includes: a base, a pneumatic device mounting base, a pneumatic clamping device, a pneumatic pressure regulating valve, and a cylinder control pressure plate; The base is disposed on both sides of the base plate. The base is connected to the bottom plate and the base is connected to the pneumatic device mounting seat. The pneumatic pressing device and the pneumatic pressure regulating valve are both disposed on the pneumatic device mounting seat. The pneumatic pressure regulating valve is connected to the pneumatic pressing device through a pipeline. The pneumatic pressing device is connected to the cylinder control pressure plate. The airflow passes through the pneumatic pressure regulating valve and then enters the pneumatic clamping device. The pneumatic clamping device controls the clamping or loosening of the pressure plate through the cylinder, thereby clamping or loosening the annular workpiece.

7. The pneumatic ring-type airflow detection fixture according to claim 6, characterized in that, The base is used to adjust the angle of the pneumatic device mounting base. The pneumatic device mounting base has holes around its perimeter. The pneumatic device mounting base is connected to the base by bolts. The pneumatic clamping device is connected to the pneumatic device mounting base by bolts.

8. The pneumatic ring-type airflow detection fixture according to claim 6, characterized in that, The cylinder control plate is mounted on the pneumatic clamping device via a locking mechanism.

9. The pneumatic ring-type airflow detection fixture according to claim 1, characterized in that, The number of pneumatic clamping mechanisms is four.

10. The pneumatic ring-type airflow detection fixture according to claim 1, characterized in that, The reversing mechanism includes: a handle and a reversing valve; The reversing valve is connected to the pneumatic clamping mechanism via a pipeline; The handle controls the reversing valve, thereby controlling the inflow or outflow of airflow.

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