Workpiece sealing performance testing device

Abstract

The utility model relates to the technical field of workpiece sealing test, in particular to a workpiece sealing test device, which comprises a water tank, a support frame arranged above the water tank, a frame-shaped test board connected below a top plate of the support frame through a lifting assembly, and a lifting pressing piece arranged on the top wall of the test board, an inflation butt joint piece is detachably arranged on the bottom face of the portion, below the lifting pressing piece, of the test table, an inflation cavity is formed in the inflation butt joint piece, an inflation connector is arranged between the inflation cavity and the side wall of the inflation butt joint piece and detachably connected with an inflation pump, and an air outlet is formed between the inflation cavity and the upper wall of the inflation butt joint piece. According to the utility model, when a sealing test is carried out on the workpiece, the through opening of the workpiece is blocked, the workpiece is pressed, the air tightness of the workpiece is detected by inflating the cavity of the workpiece and placing the workpiece in water, and the automation of the sealing detection of the workpiece is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece sealing test, and in particular provides a workpiece sealing test device. Background Art

[0002] Many workpieces have strict requirements on sealing. Therefore, for such workpieces, such as transfer valves or transfer pipes, the last step after production and processing is to detect the sealing performance of the workpiece. There are various ways to detect the sealing of workpieces in the prior art, and basically all of them are detected manually, which has the problems of low detection efficiency and poor detection effect, and is not conducive to factory batch detection. Therefore, there is an urgent need for an automated device for detecting the sealing of workpieces. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a workpiece sealing test device, which realizes automatic detection of the sealing of the workpiece.

[0004] The utility model is implemented in this way, providing a workpiece sealing test device, including a water tank, a support frame is arranged above the water tank, a frame-type test bench is connected to the bottom plate of the support frame through a lifting component, a lifting and clamping member is arranged on the top wall of the test bench, an inflatable docking member is detachably arranged on the bottom surface of the test bench below the lifting and clamping member, an inflatable cavity is arranged inside the inflatable docking member, an inflatable interface is arranged between the inflatable cavity and the side wall of the inflatable docking member, the inflatable interface is detachably connected to an inflatable pump, and an air outlet is arranged between the inflatable cavity and the upper wall of the inflatable docking member.

[0005] Preferably, telescopic sealing members are provided on both inner walls of the test bench and on the bottom wall of the test bench next to the inflatable docking member.

[0006] Further preferably, the telescopic sealing member is a telescopic cylinder, and a sealing joint for the workpiece port is provided at the output end of the telescopic cylinder.

[0007] Further preferably, the lifting assembly includes a support frame lifting cylinder and two lifting limit rods. The support frame lifting cylinder is arranged above the support frame top plate. The output end of the support frame lifting cylinder passes through the support frame top plate and is connected to the test bench top plate. Limit rod through holes are arranged on the support frame top plate on both sides of the support frame lifting cylinder. The two lifting limit rods pass through the limit rod through holes respectively and are connected to the test bench top plate.

[0008] Further preferably, the lifting and pressing member is a lifting and pressing cylinder, and a pressing end is provided at the output end of the lifting and pressing cylinder.

[0009] Further preferably, a circle of docking grooves for sealingly docking with the workpiece is provided on the outer edge of the upper surface of the inflatable docking piece, and a sealing ring is provided in the docking groove.

[0010] Further preferably, an L-shaped limit frame with adjustable position is provided on the bottom surface of the test bench next to the inflatable docking piece.

[0011] Further preferably, a plurality of water through holes are provided on the bottom surface of the test bench.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] A workpiece sealing test device is provided, which blocks the opening of the workpiece, presses the workpiece tightly, inflates the workpiece cavity, and places the workpiece in water to test the air tightness, thereby realizing the automation of workpiece sealing test. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described in detail below with reference to the accompanying drawings and implementation modes:

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0017] Figure 3 This is a structural diagram of the inflatable docking piece. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] refer to Figure 1 , Figure 2 and Figure 3 The utility model provides a workpiece sealing test device, including a water tank 1, a support frame 2 is provided above the water tank 1, a frame-type test table 3 is connected to the bottom of the top plate of the support frame 2 through a lifting component, a lifting and pressing member 4 is provided on the top wall of the test table 3, and an inflatable docking member 5 is detachably provided on the bottom surface of the test table 3 below the lifting and pressing member 4, an inflatable docking member 5 is provided inside the inflatable docking member 5, an inflatable cavity is provided inside the inflatable docking member 5, an inflatable interface 6 is provided between the inflatable cavity and the side wall of the inflatable docking member 5, the inflatable interface 6 is detachably connected to an inflatable pump, and an air outlet 7 is provided between the inflatable cavity and the upper wall of the inflatable docking member 5.

[0020] When the utility model is used to detect the sealing performance of a workpiece, water is added to the water tank 1 to the target water level, and the inflatable docking piece 5 matching the workpiece is installed at the target position on the test bench 3, and the port of the workpiece that matches the inflatable docking piece 5 is pressed against the upper surface of the inflatable docking piece 5. If the workpiece has other openings, the other openings are sealed with a sealing plug, and the lifting and clamping piece 4 is lowered and pressed on the upper surface of the workpiece to clamp the workpiece. The lifting and clamping component controls the test bench 3 to descend until the workpiece is completely submerged below the water level of the water tank 1, and the inflatable docking piece 5 is inflated by an air pump, and the gas enters the workpiece through the air outlet 7. After reaching a certain pressure, the water surface around the workpiece is observed to see if there are continuous bubbles. If so, it proves that the workpiece is a defective product and the sealing performance is unqualified. If not, it proves that the sealing performance of the workpiece is qualified.

[0021] In order to seal other openings of the workpiece on the equipment, as an improvement of the technical solution, telescopic seals 8 are provided on the inner walls on both sides of the test bench 3 and on the bottom wall of the test bench 3 next to the inflatable docking piece 5.

[0022] According to the number and position of the openings of the workpiece, the openings of the workpiece are sealed by telescopic seals 8 at different positions, thereby smoothly realizing the sealing test.

[0023] Preferably, the telescopic sealing member 8 is a telescopic cylinder, and a sealing joint 9 for connecting with the workpiece port is arranged at the output end of the telescopic cylinder.

[0024] As a specific implementation method of the lifting component, the lifting component includes a support frame lifting cylinder 10 and two lifting limit rods 11. The support frame lifting cylinder 10 is arranged above the top plate of the support frame 2. The output end of the support frame lifting cylinder 10 passes through the top plate of the support frame 2 and is connected to the top plate of the test bench 3. Limit rod through holes are arranged on the top plate of the support frame 2 on both sides of the support frame lifting cylinder 10. The two lifting limit rods 11 pass through the limit rod through holes respectively and are connected to the top plate of the test bench 3.

[0025] When lifting is required, the lifting cylinder 10 of the support frame controls the lifting of the test bench 3 , and the two lifting limit rods 11 limit the descending position of the test bench 3 to control the lifting of the test bench 3 in the correct route.

[0026] Preferably, the lifting and pressing member 4 is a lifting and pressing cylinder, and a pressing end 12 is provided at the output end of the lifting and pressing cylinder.

[0027] In order to achieve sealed docking between the workpiece and the inflatable docking piece 5, as an improvement of the technical solution, a circle of docking grooves for sealed docking with the workpiece are provided on the outer edge of the upper surface of the inflatable docking piece 5, and a sealing ring is provided in the docking groove.

[0028] In order to preliminarily locate the position of the workpiece when installing it, as an improvement, an L-shaped limit frame 13 with adjustable position is provided on the bottom surface of the test bench 3 next to the inflatable docking piece 5 .

[0029] The adjustable connection method can be to set a long hole on the horizontal section of the L-shaped limit frame 13, set an adjustment screw on the surface of the test bench 3, and control the position of the L-shaped limit frame 13 by adjusting the position of the screw passing through the long hole.

[0030] In order to make the test platform 3 descend more smoothly in the water, as an improvement, a plurality of water through holes 14 are provided on the bottom surface of the test platform 3 .

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A workpiece sealing test device, characterized in that: The invention comprises a water tank (1), a support frame (2) is arranged above the water tank (1), a frame-shaped test bench (3) is connected to the bottom of the top plate of the support frame (2) through a lifting assembly, a lifting and pressing member (4) is arranged on the top wall of the test bench (3), an inflatable docking member (5) is detachably arranged on the bottom surface of the test bench (3) below the lifting and pressing member (4), an inflatable cavity is arranged inside the inflatable docking member (5), an inflatable interface (6) is arranged between the inflatable cavity and the side wall of the inflatable docking member (5), the inflatable interface (6) is detachably connected to an inflatable pump, and an air outlet (7) is arranged between the inflatable cavity and the upper wall of the inflatable docking member (5).

2. The workpiece sealing test device according to claim 1, characterized in that: Telescopic sealing parts (8) are provided on the inner walls on both sides of the test bench (3) and on the bottom wall of the test bench (3) next to the inflatable docking piece (5).

3. The workpiece sealing test device according to claim 2, characterized in that: The telescopic sealing member (8) is a telescopic cylinder, and a sealing joint (9) for connecting with the workpiece port is arranged at the output end of the telescopic cylinder.

4. The workpiece sealing test device according to claim 1, characterized in that: The lifting assembly comprises a support frame lifting cylinder (10) and two lifting limit rods (11); the support frame lifting cylinder (10) is arranged above the top plate of the support frame (2); the output end of the support frame lifting cylinder (10) passes through the top plate of the support frame (2) and is connected to the top plate of the test bench (3); limit rod through holes are arranged on the top plate of the support frame (2) on both sides of the support frame lifting cylinder (10); and the two lifting limit rods (11) pass through the limit rod through holes and are connected to the top plate of the test bench (3).

5. The workpiece sealing test device according to claim 1, characterized in that: The lifting and pressing member (4) is a lifting and pressing cylinder, and the output end of the lifting and pressing cylinder is provided with a pressing end head (12).

6. The workpiece sealing test device according to claim 1, characterized in that: A circle of docking grooves for sealingly docking with the workpiece is provided on the outer edge of the upper surface of the inflatable docking piece (5), and a sealing ring is provided in the docking groove.

7. The workpiece sealing test device according to claim 1, characterized in that: An L-shaped limit frame (13) with adjustable position is provided on the bottom surface of the test bench (3) next to the inflatable docking piece (5).

8. The workpiece sealing test device according to claim 1, characterized in that: A plurality of water through holes (14) are provided on the bottom surface of the test bench (3).

Images