Mechanical vibration testing device based on quick assembly and disassembly of pneumatic OK clamp

Abstract

The invention provides a mechanical vibration testing device based on quick assembly and disassembly of a pneumatic OK clamp. The mechanical vibration testing device comprises a vibration testing support, a Z-direction anti-falling tool, an XY-direction anti-falling tool and a travel switch product testing assembly. The vibration test support is integrated and internally comprises an air cylinder and an air path distributor. The gas circuit distributor is divided into a cylinder gas inlet part and a gas outlet part and is connected with the cylinder through a gas pipe; the top surface and one side surface of the vibration test support are provided with a product installation via hole, a switch supporting member, an OK clamp, a button type locker lock head and a cylinder via hole. The OK clamp comprises an expansion block and an OK clamp inclined surface, the expansion block is a chamfered inclined surface, and the OK clamp penetrates through the air cylinder via hole to be in threaded connection with the air cylinder; the travel switch product testing assembly comprises a travel switch product, a quick flange and a locking nut. The problems that a traditional test tool needs to be replaced repeatedly, and the efficiency of table turning and screw fixing is low are solved, and vibration testing of multiple products can be carried out at a time.

Description

Technical Field

[0001] The present invention belongs to the field of vibration dynamics testing, and relates to mechanical vibration testing of aerospace weapon equipment assemblies, and in particular to a mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture. Background Art

[0002] In recent years, "Industry 4.0" and "intelligent manufacturing" have swept the world, bringing opportunities to domestic enterprises while also bringing huge impacts. From the analysis of bottleneck links, due to the industry characteristics of aerospace and military industry, the characteristics of multiple varieties, small batches, low maturity, and multi-line parallel production are becoming more and more obvious, and the production stability of each link is not high, and the quality control means are not efficient, resulting in a high production turnover rate, which ultimately leads to frequent internal bottlenecks and transfers everywhere, and the speed of "firefighting" is far behind the "disaster". Therefore, from the perspective of bottleneck control, the bottleneck link should be actively controlled in the product assembly, testing, and trial links, while balancing other links to ensure that the bottleneck does not transfer. By replacing manual labor with automated equipment, the efficiency, quality and flexibility of assembly, testing, and trial links are continuously improved, and this is used as a starting point to control the progress of the overall product development, production, and testing links and avoid and reduce potential human risks.

[0003] Switch products are the largest in number and have the most complete development processes among defense products, so there is an urgent need to use automation to improve the efficiency and quality of switch product production, manufacturing, testing, and experiments.

[0004] Patent authorization announcement number CN 21262362 U, a three-way batch vibration test tooling for microwave devices, which uses three mounting plates combined with mutually perpendicular reinforcing ribs to cooperate with a vibration test bench to complete batch tests in three directions of XYZ. The difference from the present invention is that the vibration test bracket of the present invention can adopt an integrated processing method and cooperate with a pneumatic control mechanism to achieve rapid batch vibration tests in three directions of XYZ, and the test object is not limited to a single type of product. During the test, the product and the tooling do not need to be mechanically fixed with screws.

[0005] Patent authorization announcement number CN 2824035 Y, a universal fixture for vibration testing, which is a cubic splicing structure, with a through hole on one side and fixture surfaces with mounting grooves on four sides, which can realize multi-directional tests at the same time. The difference from the present invention is that the vibration test bracket of the present invention can adopt an integrated processing method and a pneumatic clamping method instead of traditional screw fixed installation, and can realize batch vibration testing of multiple products in three directions of X, Y, and Z. The test object is larger in size than the product in CN 21939129 U, and has a wider range of applications. Summary of the invention

[0006] To solve the above problems, the present invention discloses a mechanical vibration testing device based on quick assembly and disassembly of a pneumatic OK clamp, which is characterized by comprising a vibration testing bracket, a Z-axis anti-falling tooling, an XY-axis anti-falling tooling, and a travel switch product testing component.

[0007] The vibration test bracket is an integrated one, with a cylinder and an air distributor installed inside; the air distributor is divided into a cylinder air inlet part and an air outlet part, and is connected to the cylinder through an air pipe;

[0008] The top surface and one side surface of the vibration test bracket are provided with a plurality of product installation holes, switch supports, and OK fixtures;

[0009] The OK fixture includes an expansion block and an OK fixture inclined surface; the expansion block is customized as a chamfered inclined surface, which cooperates with the OK fixture inclined surface to complete the task of clamping or loosening the travel switch product test component; the OK fixture passes through the cylinder through hole and is fastened to the cylinder thread;

[0010] The travel switch product test assembly includes a travel switch product, a quick flange, and a locking nut;

[0011] The quick flange is trapezoidal in shape as a whole, with a quick flange product through hole set in the center, and 15° chamfers set on the four sides to form a quick flange inclined surface, which cooperates with the OK fixture inclined surface to prevent the travel switch product test component from falling off during the vibration test; one corner of the quick flange is chamfered for direction identification after product installation, and button-type locking device through holes are designed at the four corners for installing button locking positioners to quickly load and unload test products;

[0012] The travel switch product is provided with a travel switch product thread; the travel switch product passes through the quick flange product through-hole and is assembled through the locking nut; the aperture of the product through-hole is 1-2 mm larger than the product diameter;

[0013] The mechanical vibration tooling based on the rapid loading and unloading of the pneumatic OK clamp utilizes the extension and contraction of the cylinder to pull the OK clamp to complete the upward pulling or downward pressing. When air is taken in, the cylinder rod contracts to make the OK clamp press downward to expand the lateral size of the OK clamp. The lateral expansion is utilized to make the inclined surfaces of the OK clamp on both sides of the OK clamp contact with the inclined surfaces of the quick flange and maintain the continuous feeding of air pressure, so as to clamp the quick flange. When there is no air pressure input to the cylinder, the OK clamp returns to its initial state and no longer squeezes the quick flange, and the travel switch product test component can be taken out.

[0014] The vibration test stand is provided with a vibration stand Z-direction back plate and a vibration stand XY-direction back plate; the vibration stand Z-direction back plate can clamp multiple products at one time to complete the Z-direction vibration test; the vibration stand XY-direction back plate can clamp multiple products at one time;

[0015] Furthermore, the vibration test bracket has three combinations of vibration test modes: 4X+4Y, 8X, and 8Y. The directions of the X and Y axes are marked by the direction identification surface of the quick flange. One vibration test can realize vibration tests of multiple products on the X, Y, and Z axes.

[0016] The Z-axis anti-falling fixture and the XY-axis anti-falling fixture are both provided with a button locker to prevent the risk of product falling due to air source cutoff during the vibration test of the fixed travel switch product test assembly.

[0017] The vibration test bracket is assembled from multiple aluminum alloy plates and fastened with screws. The assembly gaps are welded and reinforced using metal welding technology, and the screw countersunk holes are filled. A support is added to the center of the bracket using the same process method mentioned above. The test bracket produced by this processing method has an appearance and structural strength that is almost the same as that of the one-piece processing, and the processing cost is greatly reduced.

[0018] The vibration test bracket is a rectangular parallelepiped as a whole, with three columns in the inner center and on both sides to support the entire structure; the bottom is fixedly connected to the vibration table, and the fixing holes and the overall size of the tooling are designed according to the working size of the vibration table surface.

[0019] The mechanical vibration test tooling based on the rapid assembly and disassembly of the pneumatic OK fixture adopts the pneumatic transmission principle and utilizes the flexible connection between the air pipe and the cylinder. During the mechanical vibration test, the flexible air pipe is less affected by the vibration force and the air pressure input is stable.

[0020] The OK clamp and quick flange are made of metal material; the metal material is aluminum alloy material.

[0021] The mechanical vibration testing device with pneumatic OK fixture quick assembly and disassembly can adjust the size of the OK fixture according to any volume size, and complete vibration testing of products of any volume size.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1) The mechanical vibration test device provided in the present invention solves the problem that traditional test tools need to be repeatedly replaced, the turning table and the screw fixing efficiency are slow;

[0024] 2) The vibration test bracket of the present invention is integrated, which greatly reduces the material and processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a schematic diagram of a mechanical vibration testing device based on a pneumatic OK clamp for quick assembly and disassembly provided in one embodiment of the present invention; wherein Figure 1(a) is an overall schematic diagram; Figure 1(b) is a decomposed component diagram; and Figure 1(c) is a cross-sectional schematic diagram.

[0027] Figure 2 This is a schematic diagram of a quick flange clamping travel switch product provided in one embodiment of the present invention.

[0028] Fig. 3 is a schematic diagram of an OK fixture clamping quick flange and product provided in one embodiment of the present invention; wherein Fig. 3(a) is a schematic diagram of an OK fixture clamp and a travel switch product test assembly; and Fig. 3(b) is a schematic diagram of a cross-section of an OK fixture clamp and a travel switch product test assembly.

[0029] Explanation of the accompanying drawings: 1 is a vibration test bracket; 2 is a switch support; 3 is a button-type locker; 4 is a Z-direction anti-dropping tool; 5 is a travel switch product; 6 is a quick flange; 7 is an XY-direction anti-dropping tool; 8 is an air path distributor; 9 is a vibration bracket Z-direction back plate; 10 is a button-type locker lock head; 11 is a product installation through hole; 12 is a cylinder through hole; 13 is a gas path distributor back plate; 14 is a vibration bracket XY-direction back plate; 15 is a cylinder; 16 is a travel switch product test assembly; 17 is an OK fixture; 101 is a travel switch product thread; 102 is a quick flange product through hole; 103 is a button-type locker through hole; 104 is a quick flange inclined surface; 105 is a direction identification surface; 106 is a locking nut; 107 is a switch support inclined surface; 108 is an OK fixture inclined surface.

[0030] Specific implementation methods

[0031] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0032] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0033] A mechanical vibration testing device based on quick assembly and disassembly of a pneumatic OK fixture is characterized by comprising a vibration testing bracket 1, a Z-axis anti-falling tool 4, an XY-axis anti-falling tool 7, and a travel switch product testing component 16.

[0034] The vibration test bracket 1 is an integrated type, and a cylinder 15 and an air distributor 8 are installed inside; the air distributor 8 is divided into a cylinder air inlet part and an air outlet part, and is connected to the cylinder 15 through an air pipe;

[0035] The top surface and one side surface of the vibration test bracket 1 are provided with a plurality of product installation holes 11, a switch support 2, an OK fixture 17, a button-type locking device lock head 10 and a cylinder through hole 12; the switch support 2 is provided with a switch support inclined surface 107;

[0036] The OK fixture 17 includes an expansion block and an OK fixture inclined surface 108; the expansion block is customized as a chamfered inclined surface, and cooperates with the OK fixture inclined surface 108 to complete the task of clamping or loosening the travel switch product test component; the OK fixture 17 passes through the cylinder through hole 12 and is connected to the cylinder thread 15;

[0037] The travel switch product testing assembly 16 includes a travel switch product 5, a quick flange 6, and a locking nut 106; the travel switch product 5 is provided with a travel switch product thread 101;

[0038] The quick flange 6 is trapezoidal in shape as a whole, with a quick flange product through hole 102 set in the center, and 15° chamfers are set on the four sides to form a quick flange inclined surface 104, which cooperates with the OK fixture inclined surface 108 to prevent the travel switch product test component 16 from falling off during the vibration test; one of the corners of the quick flange 6 is chamfered to form a direction identification surface 105, which is used for the direction identification after the product is installed; the four corners of the quick flange 6 are designed with button-type locking device through holes 103, and the button-type locking device 3 passes through the button-type locking device through holes 103 and is quickly connected or released with the installation button locking device lock head 10, so as to realize the rapid installation and removal of the travel switch product test component 16;

[0039] The aperture of the through hole 102 of the quick flange product is 1 to 2 mm larger than the product diameter;

[0040] The travel switch product 5 passes through the quick flange product through-hole 102 and is assembled through the locking nut 106 .

[0041] The mechanical vibration tooling based on the rapid loading and unloading of the pneumatic OK clamp utilizes the expansion block in the middle of the OK clamp 17 to move up and down by means of the extension and contraction of the cylinder. When air is taken in, the cylinder rod contracts so that the expansion block presses down to expand the lateral size of the OK clamp 17. The lateral expansion is utilized to make the OK clamp inclined surfaces 108 on both sides of the OK clamp 17 close to the quick flange inclined surfaces 104, and cooperate with the switch support inclined surfaces 107 to clamp the quick flange inclined surfaces 104, and maintain continuous air pressure feeding; when there is no air pressure input to the cylinder, the OK clamp 17 returns to its initial state and no longer squeezes the quick flange 6, and the travel switch product test assembly 16 can be taken out.

[0042] The vibration test bracket 1 is provided with a vibration bracket Z-direction back plate 9, a vibration bracket XY-direction back plate 14 and an air path distributor back plate 13; the vibration bracket Z-direction back plate 9 can clamp multiple travel switch product test components 16 at one time to complete the Z-direction vibration test; the vibration bracket XY-direction back plate 14 can clamp multiple travel switch product test components 16 at one time.

[0043] Furthermore, the vibration test bracket 1 has three combinations of vibration test modes: 4X+4Y, 8X, and 8Y. The directions of the X and Y axes are marked by the direction identification surface 105 of the quick flange 6. One vibration test can realize the vibration test of 4 travel switch product test components 16X, Y, and Z axes.

[0044] The Z-axis anti-falling fixture 4 and the XY-axis anti-falling fixture 7 are both provided with a button locker 3 to prevent the risk of the travel switch product test assembly 16 falling off due to the cutting off of the air source during the vibration test of the fixed travel switch product test assembly 16.

[0045] The vibration test bracket 1 is assembled from multiple aluminum alloy plates and fastened with screws. The assembly gaps are welded and reinforced using metal welding technology, and the screw countersunk holes are filled. A support is added to the center of the bracket using the same process method mentioned above. The test bracket produced by this processing method has an appearance and structural strength that is almost the same as that of the one-piece processing, and the processing cost is greatly reduced.

[0046] The vibration test bracket 1 is a rectangular parallelepiped as a whole, with three columns in the inner center and on both sides to support the entire structure; the bottom is fixedly connected to the vibration table, and the fixing holes and the overall size of the tooling are designed according to the working size of the vibration table surface.

[0047] The mechanical vibration test fixture based on the rapid assembly and disassembly of the pneumatic OK fixture adopts the pneumatic transmission principle and utilizes the flexible connection between the air pipe and the cylinder 15. During the mechanical vibration test, the flexible air pipe is less affected by the vibration force and the air pressure input is stable.

[0048] The OK clamp 17 and the quick flange 6 are made of metal material; the metal material is aluminum alloy material.

[0049] The mechanical vibration testing device with pneumatic OK fixture quick assembly and disassembly can adjust the size of the OK fixture 17 according to any volume size, and complete the vibration test of products with any volume size.

[0050] The travel switch product in this example uses a certain model product, which needs to complete the random vibration test in three directions of XYZ:

[0051] As shown in FIG1 , before preparing for the test, confirm that the OK fixture 17 passes through the cylinder through hole 12 and is fixed to the cylinder 15 with screws; the air pipes between the air distributor 8 of the air distributor back plate 13 of the dynamic test bracket 1 and all the cylinders 15 are connected, and the tooling is pushed into the vibration table and fixed with screws.

[0052] like Figure 2 As shown, the travel switch product 5 is passed through the through hole 102 of the quick flange product, and then the locking nut 106 is matched with the travel switch product thread 101 to be locked and fixed, and the travel switch product test component 16 is assembled.

[0053] As shown in Figures 1 and 3, the travel switch product test assembly 16 fixed in the above steps is passed through the vibration test bracket product installation hole 11 in turn, and the direction is adjusted according to the direction identification surface 105. After the adjustment, turn the air source switch, the cylinder 15 will inwardly retract through the expansion block to press the OK clamp 17 down, so that the OK clamp inclined surface 108 expands outward and fits tightly with the quick flange inclined surface 104, pushing the opposite quick flange inclined surface 104 and the switch support inclined surface 107 to clamp.

[0054] As shown in FIG. 1 , the Z-direction anti-dropping tooling 4 and the XY-direction anti-dropping tooling 7 are placed on the Z-direction back plate 9 and the XY-direction back plate 14 of the vibration bracket respectively, and the button locker 3 is inserted into the button locker through hole 103 and then locked with the button locker lock head 10.

[0055] The embodiments of the present invention described above are only used to help explain the present invention. These embodiments are selected and specifically described in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification, which all belong to the protection scope of the present invention.

Claims

1. A mechanical vibration testing device based on quick assembly and disassembly of a pneumatic OK fixture, characterized in that: It comprises a vibration test bracket (1), a Z-axis anti-falling tool (4), an XY-axis anti-falling tool (7), and a travel switch product test assembly (16); The vibration test bracket (1) is an integrated type, and a cylinder (15) and an air path distributor (8) are installed inside; the air path distributor (8) is divided into a cylinder air inlet part and an air outlet part, and is connected to the cylinder (15) through an air pipe; The top surface and one side surface of the vibration test bracket (1) are provided with a plurality of product installation holes (11), a switch support (2), an OK clamp (17), a button-type locking device lock head (10) and a cylinder through hole (12); the switch support (2) is provided with a switch support inclined surface (107); The OK fixture (17) comprises an expansion block and an OK fixture inclined surface (108); the expansion block is a chamfered inclined surface; the OK fixture (17) passes through the cylinder through hole (12) and is threadedly connected to the cylinder (15); The travel switch product testing assembly (16) comprises a travel switch product (5), a quick flange (6), and a locking nut (106); the quick flange (6) is trapezoidal in shape as a whole, a quick flange product through hole (102) is arranged at the center, and chamfers are arranged on four sides to form a quick flange inclined surface (104).

2. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: The travel switch product (5) is provided with a travel switch product thread (101), which passes through the quick flange product through hole (102) and is assembled through the locking nut (106).

3. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: One corner of the quick flange (6) is chamfered to form a direction identification surface (105) for identifying the direction of the product after installation.

4. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: The four corners of the quick flange (6) are provided with button-type locking device through holes (103), and the button-type locking device (3) passes through the button-type locking device through holes (103) to be quickly connected or released with the mounting button-type locking device lock head (10), thereby realizing quick assembly and disassembly of the travel switch product test assembly (16).

5. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: The mechanical vibration tooling based on the pneumatic OK clamp quick assembly and disassembly utilizes the expansion block in the middle of the OK clamp (17) to move up and down by using the extension and contraction of the cylinder. When air is taken in, the cylinder rod contracts so that the expansion block presses down to expand the lateral size of the OK clamp (17). The lateral expansion is utilized to make the OK clamp inclined surfaces (108) on both sides of the OK clamp (17) closely attached to the quick flange inclined surfaces (104), and cooperate with the switch support inclined surfaces (107) to clamp the quick flange inclined surfaces (104). When there is no air pressure input to the cylinder, the OK clamp (17) no longer presses the quick flange (6), and the travel switch product test assembly (16) is taken out.

6. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: The vibration test bracket (1) is provided with a vibration bracket Z-direction back plate (9), a vibration bracket XY-direction back plate (14) and an air path distributor back plate (13); the vibration bracket Z-direction back plate (9) can clamp a plurality of travel switch product test assemblies (16) at one time to complete a Z-direction vibration test; the vibration bracket XY-direction back plate (14) can clamp a plurality of travel switch product test assemblies (16) at one time.

7. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: The Z-direction anti-falling tool (4) and the XY-direction anti-falling tool (7) are both provided with a button locker (3) to prevent the travel switch product test assembly (16) from falling off.

8. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: The vibration test bracket (1) is assembled from a plurality of aluminum alloy plates and fastened with screws, and then the assembly gaps are welded and reinforced using metal welding technology, and the screw countersunk holes are caulked.

9. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: The vibration test bracket (1) is an integrated type, with three columns at the inner center and on both sides to support the entire structure; the bottom is fixedly connected to the vibration table, and the fixing holes and the overall dimensions of the tooling are designed according to the working dimensions of the vibration table surface.

10. A mechanical vibration testing device based on rapid assembly and disassembly of a pneumatic OK fixture as claimed in claim 1, characterized in that: The OK clamp (17) and the quick flange (6) are made of metal materials.

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