Assembly table for rivet nut sealing test

Abstract

The assembly table for the sealing test of the rivet nuts is formed by assembling an assembly base and an assembly upper seat, and the assembly table formed by assembling the assembly base and the assembly upper seat is provided with a plurality of sealing detection stations; in each sealing performance detection station, an assembling base air cavity is formed in the assembling base, an assembling upper base air cavity is formed in the assembling upper base, a plate body is placed between the assembling base air cavity and the assembling upper base air cavity, and a sealing structure is arranged between the assembling base air cavity and the assembling upper base air cavity; the plate body is used for assembling a rivet nut to be detected, and the rivet nut is connected to an elastic pre-tightening device, so that the rivet nut obtains pulling force or pushing force. The assembly table is provided with a plurality of sealing performance detection stations, and sealing performance tests of a plurality of rivet nuts can be carried out at the same time. In the testing process, the pressure value in the air cavity can be obtained in real time through the pressure detection unit and the pressure display device, and therefore whether the sealing performance of the corresponding rivet nut is qualified or not is judged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fastener sealing property detection technical field, concretely relates to a kind of assembly platform for pull rivet nut sealing property test. BACKGROUND

[0002] Pull rivet nut is a commonly used fastener, is widely used in automobile, aviation, instrument and multiple fields, simultaneously, with the diversification and complexification of application environment, simultaneously in some application scenarios, higher requirement is also proposed to the sealing performance of pull rivet nut, to ensure that pull rivet nut can reach the expected sealing effect at assembly position during use, pull rivet nut sealing property test needs to be carried out.

[0003] In prior art, standard pull rivet nut air tightness detection device is also lacked, some detection devices can only detect single nut alone when using, and efficiency is low, and operation is troublesome, and detection precision is not high.

[0004] Therefore, based on above some status, the assembly platform for pull rivet nut sealing property test is further designed and improved in the present application. UTILITARY MODEL CONTENTS

[0005] For the above problems, the utility model provides an assembly platform for pull rivet nut sealing property test, and the overall structure is compact, can detect multiple pull rivet nuts simultaneously, and can display detection effect individually, and can provide pre-tightening force to pull rivet nut, better simulate actual use scene, and detection precision is high.

[0006] The technical scheme in the utility model is as follows.

[0007] The assembly platform for pull rivet nut sealing property test is assembled by assembly base and assembly upper seat, and a plurality of sealing property detection stations are arranged on the assembly platform formed after assembly of the assembly base and the assembly upper seat;In each sealing property detection station, assembly base air cavity is arranged in the assembly base, assembly upper seat air cavity is arranged in the assembly upper seat, and the assembly base air cavity and the assembly upper seat air cavity are used to place plate body and are provided with sealing structure;Pull rivet nut to be detected is assembled on the plate body, and the pull rivet nut is connected to elastic pre-tightening device to obtain pulling force or thrust;The assembly base air cavity is communicated to assembly base air inlet for air inlet, assembly base air outlet for air outlet;The assembly base air cavity is also communicated to assembly base detection air channel, and pressure detection unit is arranged on the assembly base detection air channel, and the pressure detection unit is connected to pressure display device.

[0008] The assembly table for the sealing test in the application has multiple sealing detection stations, and can simultaneously perform sealing test on multiple pull nut.

[0009] In the application, the actual use scene of the pull nut is simulated, that is, the pull nut is installed on the plate body, the plate body can be a multi-layer plate body, the scene in which the pull nut fixes the multi-layer structure in the actual use is simulated, and the elastic pre-tightening device is further arranged to provide a force on the pull nut, so that the stress of the pull nut in the practical use scene is simulated, and thus the sealing performance of the pull nut in the actual use scene can be well tested, the accuracy is high, and the operation is convenient.

[0010] In a preferred embodiment, the elastic pre-tightening device is arranged at the upper part of the assembly upper seat air cavity, a movable rod body is arranged in the elastic pre-tightening device, the rod body is connected to the pull nut to be detected after extending into the assembly upper seat air cavity; a spring assembly is further arranged on the elastic pre-tightening device, the spring assembly is used to provide a pulling force or a pushing force, and acts on the pull nut to be detected during detection, so that the pull nut is stressed and the actual use scene is simulated.

[0011] In a preferred embodiment, a closing plate is arranged on the elastic pre-tightening device and closes the outer opening of the assembly upper seat air cavity, one end of the spring assembly is located on the closing plate, the other end of the spring assembly is located on an end plate, the rod body movably penetrates through the spring assembly and the closing plate, and the rod body is fixedly connected to the end plate, and can be screw threadedly fixedly connected, can be rotationally adjusted, can adjust the elastic force, and the rod body can be a screw rod.

[0012] In a preferred embodiment, an assembly base air inlet unit is arranged on the assembly base air inlet channel, and an assembly base air outlet unit is arranged on the assembly base air outlet channel.

[0013] In a preferred embodiment, an air inlet switch is arranged on the assembly base air inlet unit and used for air inlet and closing, and an air outlet switch is arranged on the assembly base air outlet unit and used for air outlet and closing.

[0014] In a preferred embodiment, the sealing structure is a sealing ring arranged at the assembly position between the assembly base and the assembly upper seat, and can be arranged as required to ensure the sealing performance of the internal cavity and avoid air leakage affecting the detection result.

[0015] In a preferred embodiment, the upper and lower surfaces of the plate body are respectively sealed from the assembly upper seat and the assembly base by the sealing rings, air leakage is avoided, and the accuracy of the detection result is ensured.

[0016] In a preferred embodiment, the assembly upper seat is provided with an assembly upper seat passage one and an assembly upper seat passage two, the inner side of the assembly upper seat passage one and the assembly upper seat passage two are communicated to the side surface of the plate body, the outer side of the assembly upper seat passage one is provided with an assembly upper seat exhaust unit, and the assembly upper seat passage two is provided with a second pressure detection unit connected to a pressure display device. In this structure, when gas leaks between the multi-layer plate body into the assembly upper seat passage one or the assembly upper seat passage two, it can be detected.

[0017] In a preferred embodiment, the assembly upper seat exhaust unit is provided with an assembly upper seat exhaust switch for exhaust and closing.

[0018] In a preferred embodiment, the assembly upper seat is provided with a gas leakage confirmation passage connecting the assembly upper seat air cavity and the outside, in this structure, when gas leaks into the assembly upper seat air cavity through the gap between the plate body and the pull rivet nut, it can be confirmed through the gas leakage confirmation passage, and a gas pressure detection unit can also be arranged on the gas leakage confirmation passage.

[0019] The utility model has the following beneficial effects: provide a kind of assembly table for pull rivet nut tightness test, overall structure is compact, can simultaneously detect multiple pull rivet nuts, and display detection effect separately, and can provide pre-tightening force to pull rivet nut, better simulate actual use scene, detection precision is high. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the sectional view of the assembly table in the embodiment one in the present application.

[0021] Figure 2 It is the sectional view of the assembly table in the embodiment two in the present application. Figure 1 It is the enlarged view of area A in the embodiment two.

[0022] Figure 3 It is the sectional view of the assembly table in the embodiment two in the present application.

[0023] Figure 4 It is the sectional view of the assembly table in the embodiment two in the present application. Figure 3 It is the enlarged view of area B in the embodiment two.

[0024] Figure 5 It is the front view of the assembly table in the embodiment two in the present application. DETAILED DESCRIPTION

[0025] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0026] In the following embodiments, identical or similar reference numerals denote identical or similar components or components having identical or similar functions throughout the description, the embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. Indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as limiting the present application. In addition, the terms: first, second, etc. Are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the shown technical features. In the description of the present application, unless otherwise specifically defined and limited, the terms: mounting, connecting, connecting, etc. Should be understood in a broad sense, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0028] Referring to Figures 1 to 5 , a kind of assembly table for the sealing test of pull rivet nut involved in the present application, the assembly table 4 is formed by assembly base 41 and assembly upper seat 42 assembly, several sealing detection stations are equipped on the assembly table 4 formed after assembly base 41 and assembly upper seat 42 assembly;Each sealing detection station: assembly base 41 is equipped with assembly base air cavity 43, assembly upper seat 42 is equipped with assembly upper seat air cavity 44, assembly base air cavity 43 and assembly upper seat air cavity 44 are used for placing plate body 8 between, and sealing structure is provided;Plate body 8 is used for assembling pull rivet nut 6 to be detected, and the pull rivet nut 6 is connected to elastic pre-tightening device 5 so that the pull rivet nut 6 obtains tension or thrust;Assembly base air cavity 43 is communicated to assembly base air inlet 412 for air intake, assembly base air outlet 411 for air exhaust;Assembly base air cavity 43 is also communicated to assembly base detection air channel 413, and pressure detection unit 4131 is provided on assembly base detection air channel 413, and the pressure detection unit 4131 is connected to pressure display device.

[0029] In the present application, the sealing structure is a sealing ring 7 provided at the assembly position between the assembly base 41 and the assembly upper seat 42, which can be set as needed to ensure the sealing of the internal cavity and avoid air leakage affecting the detection result. If necessary, the upper and lower surfaces of the plate body 8 are respectively sealed from the assembly upper seat 42 and the assembly base 41 by the sealing ring 7, without air leakage, to ensure the accuracy of the detection result.

[0030] Furthermore, as can be seen from the accompanying drawings, the assembly base air intake duct 412 is provided with an assembly base air intake unit 4121, and the assembly base exhaust duct 411 is provided with an assembly base exhaust unit 4111. The assembly base air intake unit 4121 is provided with an air intake switch 4122 for air intake and shut-off, and the assembly base exhaust unit 4111 is provided with an exhaust switch 4112 for air exhaust and shut-off.

[0031] Furthermore, as can be seen from the accompanying drawings, in this application, the elastic pre-tightening device 5 is located on the upper part of the assembly seat air cavity 44. The elastic pre-tightening device 5 has a movable rod 51, which extends into the assembly seat air cavity 44 and can be connected to the rivet nut 6 to be tested. The elastic pre-tightening device 5 is also provided with a spring assembly 52, which is used to provide tensile or thrust force and acts on the rivet nut 6 to be tested during testing, so that the rivet nut is subjected to force, simulating the actual use scenario.

[0032] In the specific structure, the elastic pre-tightening device 5 is provided with a sealing plate 53 that closes the outer opening of the mounting seat air cavity 44. One end of the spring assembly 52 is located on the sealing plate 53, and the other end of the spring assembly 52 is located on the end plate 58. The rod 51 can movably pass through the spring assembly 52 and the sealing plate 53. The rod 51 is fixedly connected to the end plate 58, specifically by bolt thread. The position can be adjusted by rotation to realize the adjustment of elastic force. The rod 51 can be a screw.

[0033] Appendix Figure 1 To be continued Figure 2 The diagram shows a schematic of the assembly table in Embodiment 1 of this application. The assembly seat 42 is provided with an assembly seat channel 1 421 and an assembly seat channel 2 422. The inner sides of both assembly seat channel 1 421 and assembly seat channel 2 422 are connected to the side surface of the plate 8. An assembly seat exhaust unit 4211 is provided on the outer side of assembly seat channel 1 421, and a second pressure detection unit 4221 is provided on assembly seat channel 2 422. This second pressure detection unit 4221 is connected to a pressure display device. In this structure, gas leakage into assembly seat channel 1 421 or assembly seat channel 2 422 through the layers of plates 8 can be detected. The assembly seat exhaust unit 4211 is provided with an assembly seat exhaust switch 4212 for venting and closing.

[0034] Appendix Figure 3 To be continued Figure 5The schematic view of the assembly table in the second embodiment of the application is shown, and the assembly upper seat 42 is provided with a gas leakage confirmation channel 425 connected with the assembly upper seat air cavity 44 and the outside, in this structure, after the gas leaks into the assembly upper seat air cavity 44 through the gap between the plate body 8 and the pull rivet nut 6, the gas leakage confirmation channel 425 can be used for confirmation, and a gas pressure detection unit can also be arranged on the gas leakage confirmation channel 425.

[0035] In the sealing test assembly table in the application, the pull rivet nut used for detection can be a high-toughness weather-resistant bolt.

[0036] In a specific scheme, the pressure detection unit can be a PSE530 series pressure sensor, and the gas source used for gas supply can be a conventional gas pump device.

[0037] As can be seen from the above description, the sealing test assembly table in the application has a plurality of sealing detection stations, and can simultaneously perform sealing test on a plurality of pull rivet nuts.

[0038] Further, the application simulates the actual use scene of the pull rivet nut, that is, the pull rivet nut is installed on the plate body, the plate body can be a multi-layer plate body, the scene in which the pull rivet nut fixes the multi-layer structure in the actual use is simulated, and an elastic pre-tightening device is further arranged to provide a force on the pull rivet nut, so as to simulate the stress of the pull rivet nut in the practical use scene, and thus the sealing performance of the pull rivet nut in the actual use scene can be well tested, the accuracy is high, and the operation is convenient.

[0039] As described above, the utility model provides a kind of assembly table for pull rivet nut sealing test, and the overall structure is compact, can simultaneously detect multiple pull rivet nuts, and separately display detection effect, and can provide pre-tightening force to pull rivet nut, better simulate actual use scene, and detection precision is high.

[0040] The protection scope of the utility model includes but is not limited to the above embodiments, and the protection scope of the utility model is subject to the claims, and any replacement, deformation, improvement of the skilled in the art to the present technology is also included in the protection scope of the utility model.

Claims

1. An assembly station for pull-stud nut sealability testing, characterized in that, The assembling table (4) is assembled by an assembling base (41) and an assembling upper seat (42), and a plurality of sealing detection stations are arranged on the assembling table (4) formed by the assembling base (41) and the assembling upper seat (42). In each sealing detection station, an assembling base air cavity (43) is arranged in the assembling base (41), an assembling upper seat air cavity (44) is arranged in the assembling upper seat (42), and a plate body (8) is arranged between the assembling base air cavity (43) and the assembling upper seat air cavity (44) and provided with a sealing structure. The plate body (8) is used for assembling a pull-rivet nut (6) to be detected, and the pull-rivet nut (6) is connected to an elastic pre-tightening device (5) to obtain a pulling force or a pushing force. The assembling base air cavity (43) is connected to an assembling base air inlet (412) for air inlet and an assembling base air outlet (411) for air outlet. The assembling base air cavity (43) is further connected to an assembling base detection air channel (413) provided with a pressure detection unit (4131) connected to a pressure display device.

2. The assembly station for a pull-up nut seal test according to claim 1, wherein The elastic pre-tightening device (5) is arranged on the upper portion of the assembling upper seat air cavity (44), and a movable rod body (51) is arranged in the elastic pre-tightening device (5) and connected to the pull-rivet nut (6) to be detected after extending into the assembling upper seat air cavity (44). A spring assembly (52) is further arranged on the elastic pre-tightening device (5) and used for providing the pulling force or the pushing force and acting on the pull-rivet nut (6) to be detected during detection.

3. The assembly station for the pull-up test of the rivet nut sealability according to claim 2, wherein A closing plate (53) is arranged on the outer opening of the assembling upper seat air cavity (44), one end of the spring assembly (52) is located on the closing plate (53), the other end of the spring assembly (52) is located on an end plate (58), the rod body (51) movably passes through the spring assembly (52) and the closing plate (53), and the rod body (51) is fixedly connected to the end plate (58).

4. The assembly station for pull-rivet-nut leak test according to claim 1, wherein An assembling base air inlet unit (4121) is arranged on the assembling base air inlet (412), and an assembling base air outlet unit (4111) is arranged on the assembling base air outlet (411).

5. The assembly station for pull-rivet-nut leak test according to claim 4, wherein An air inlet switch (4122) is arranged on the assembling base air inlet unit (4121), and an air outlet switch (4112) is arranged on the assembling base air outlet unit (4111).

6. The assembly station for pull-rivet-nut leak test according to claim 1, wherein The sealing structure is a sealing ring (7) arranged at the assembling position between the assembling base (41) and the assembling upper seat (42).

7. The assembly station for pull-rivet-nut leak test according to claim 1, wherein The upper and lower surfaces of the plate body (8) are respectively sealed with the assembling upper seat (42) and the assembling base (41) through the sealing ring (7).

8. The assembly station for testing the sealability of a pull-rivet nut according to any one of claims 1 to 7, characterized in that, The assembly upper seat (42) is provided with an assembly upper seat passage one (421) and an assembly upper seat passage two (422), inner sides of the assembly upper seat passage one (421) and the assembly upper seat passage two (422) are communicated to side surfaces of the plate body (8), an outer side of the assembly upper seat passage one (421) is provided with an assembly upper seat exhaust unit (4211), the assembly upper seat passage two (422) is provided with a second pressure detection unit (4221), the second pressure detection unit (4221) is connected to a pressure display device.

9. The assembly station for pull-rivet-nut leak test according to claim 8, wherein The assembly upper seat exhaust unit (4211) is provided with an assembly upper seat exhaust switch (4212).

10. The assembly station for testing the sealability of a pull-rivet nut according to any one of claims 1 to 7, characterized in that, The assembly upper seat (42) is provided with a gas leakage confirmation passage (425) which communicates the assembly upper seat air cavity (44) with the outside.

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