Mold tool based on air tightness detection

By designing an airtightness testing mold fixture that automatically pops open the sample, the problems of time-consuming sample removal and labor intensity were solved, achieving efficient testing and sealing, and supporting the rapid replacement of worn parts.

CN223769711UActive Publication Date: 2026-01-06GUANGZHOU YUANFANG HARDWARE & PLASTIC CO LTD
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Patent Information

Application Number
CN202520813785.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-01-06
Estimated Expiration
2035-04-27

AI Technical Summary

Technical Problem

When inspecting large batches of samples, the process of removing the samples from the mold tooling positioning point is time-consuming and increases the labor intensity of workers.

Method used

Design a mold tooling based on airtightness testing, using components such as cylinders and ring plates to achieve automatic pop-out of the sample, avoiding manual operation.

Benefits of technology

It reduces sample removal time, lowers worker workload, improves testing efficiency and sealing performance, and supports rapid replacement of worn seals.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mold tools, and discloses a mold tool based on air tightness detection, which comprises a mounting bottom plate, a support column and an upper mounting plate, and further comprises a helium detection base, a cylinder I and a cylinder II, the surface of the helium detection base is provided with an annular plate for bouncing off a sample piece to be detected; according to the mold tool based on air tightness detection, after helium detection is completed, the annular plate jacks up a to-be-detected sample piece which is not positioned and supported, so that the to-be-detected sample piece is taken down from the positioning block, and the rotating frame automatically rotates to pop up the to-be-detected sample piece, so that a worker does not need to manually take down the sample piece from the positioning block, and the labor intensity of the worker is reduced. According to the mold tool based on airtightness detection, time is saved, the labor intensity of workers is reduced, the mold tool based on airtightness detection has good detection airtightness, positioning of a sample piece can be rapidly completed, and when a sealing piece is abraded in the long-term use process, rapid replacement can be achieved at the same time.
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Description

Technical Field

[0001] This utility model relates to the field of mold tooling technology, and in particular to mold tooling based on airtightness testing. Background Technology

[0002] Molds and tooling can be customized according to the shape of the product being tested, ensuring that the product can be accurately positioned and sealed during the testing process, thereby improving the accuracy and efficiency of testing, ensuring the reliability and repeatability of test results, meeting high-requirement testing needs, and reducing testing errors.

[0003] During helium testing, the sample to be tested is first placed in the positioning position of the mold fixture. Then, cylinders or similar devices are used to press the sample tightly onto the helium testing base to ensure the sealing of the helium test. After the helium test is completed, the sample is removed from the positioning position of the mold fixture, and a new sample is installed in the positioning position of the mold fixture to continue the test. However, removing the sample from the positioning position of the mold fixture takes a small amount of time. When testing a large number of samples in the factory, this removal step not only wastes a lot of time but also makes the workers more tired. Utility Model Content

[0004] To overcome the problem that removing samples from the mold tooling positioning point during large-scale sample testing in the factory not only wastes a lot of time but also makes workers more tired.

[0005] The technical solution of this utility model is as follows: a mold tooling based on airtightness testing, including a mounting base plate, support columns, and an upper mounting plate, as well as a helium detection base, cylinder one, and cylinder two. Support columns are fixedly installed at the four corners of the upper end of the mounting base plate, and an upper mounting plate is fixedly installed at the upper end of the support columns. Cylinder fixing plate one is fixedly installed at the upper end of the mounting base plate, and cylinder one for fixing one end of the sample to be tested is fixedly installed at the upper end of cylinder fixing plate one. Cylinder fixing plate two is fixedly installed at the upper end of the mounting base plate, and cylinder two for fixing one end of the sample to be tested is fixedly installed at the upper end of cylinder fixing plate two. Cylinder three for fixing the upper end of the sample to be tested is fixedly installed at the upper end of the upper mounting plate. The surface of the helium detection base is provided with an annular plate for springing open the sample to be tested.

[0006] Preferably, the output end of cylinder one is fixedly connected to clamp mounting plate one, and a positioning head one for blocking the opening on one side of the sample to be tested is fixedly installed on one side of clamp mounting plate one. The output end of cylinder two is fixedly connected to clamp mounting plate two, and a positioning head two for blocking the opening on one side of the sample to be tested is fixedly installed on one side of clamp mounting plate two.

[0007] Preferably, the upper surface of the helium detection base is provided with an annular groove, an O-ring is provided in the annular groove, and a groove is provided inside the helium detection base. A positioning block for determining the position of the sample to be tested is fixedly installed inside the groove, and the positioning block is adapted to the lower end of the sample to be tested.

[0008] Preferably, the output end of cylinder three passes through the upper mounting plate, and a pressure plate is fixedly connected to the output end of cylinder three. The pressure plate has a groove two, and a nitrile rubber ring is provided in the groove two. The nitrile rubber ring contacts the upper opening of the sample to be tested.

[0009] Preferably, a guide shaft is fixedly connected to the upper end of the pressure plate, and a flange bearing is fixedly installed on the upper end of the upper mounting plate, with the guide shaft and the flange bearing being slidably connected.

[0010] Preferably, the upper surface of the helium detection base is provided with an annular groove, and an annular plate is slidably arranged in the annular groove at the upper end of the helium detection base. Slide rods are fixedly connected to the four corners at the lower end of the annular plate. A spring seat is provided at the lower end of the mounting base plate. The spring seat is connected to the lower end of the slide rod and is used to lift the annular plate.

[0011] Preferably, torsion spring seats are fixedly installed on both sides of the upper end of the annular plate, and a rotating frame is rotatably connected between the two torsion spring seats. The rotating frame is used to pop up and push away the sample to be tested.

[0012] The beneficial effects of this utility model are:

[0013] 1. After the helium test is completed, the ring plate of the mold fixture based on airtightness testing will lift the sample to be tested, which has lost its positioning support, thereby removing the sample from the positioning block. The rotating frame will automatically rotate to pop the sample to be tested away. This avoids the need for workers to manually remove the sample from the positioning block, which not only saves time but also reduces the labor intensity of workers.

[0014] 2. This mold tooling based on airtightness testing has good testing sealing performance, can quickly complete the positioning of the sample, and can also be quickly replaced when the seal wears out during long-term use. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the mounting base plate of this utility model.

[0016] Figure 2 The diagram shown is a three-dimensional structural schematic of the nitrile rubber ring of this utility model;

[0017] Figure 3 The diagram shown is a three-dimensional structural schematic of the positioning block of this utility model;

[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the positioning head of this utility model;

[0019] Figure 5 The diagram shown is a three-dimensional structural schematic of the cylinder of this utility model;

[0020] Figure 6 The diagram shown is a three-dimensional structural schematic of the O-ring seal of this utility model;

[0021] Figure 7 The diagram shown is a three-dimensional structural schematic of the annular plate of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Mounting base plate; 2. Support column; 3. Upper mounting plate; 4. Helium detector base; 5. Annular groove one; 6. O-ring seal; 7. Groove one; 8. Positioning block; 9. Cylinder one; 10. Cylinder fixing plate one; 11. Fixture mounting plate one; 12. Positioning head one; 13. Cylinder two; 14. Cylinder fixing plate two; 15. Fixture mounting plate two; 16. Positioning head two; 17. Cylinder three; 18. Pressure plate; 19. Groove two; 20. Nitrile rubber ring; 21. Guide shaft; 22. Flange bearing; 23. Spring seat; 24. Annular plate; 25. Torsion spring seat; 26. Rotating frame; 27. Slide rod. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1 - Figure 7 This utility model provides an embodiment of a mold fixture based on airtightness testing, including a mounting base plate 1, support columns 2, and an upper mounting plate 3, as well as a helium detection base 4, a first cylinder 9, and a second cylinder 13. Support columns 2 are fixedly installed at the four corners of the upper end of the mounting base plate 1, and the upper mounting plate 3 is fixedly installed at the upper end of the support columns 2. A first cylinder fixing plate 10 is fixedly installed at the upper end of the mounting base plate 1, and a first cylinder 9 for fixing one end of the sample to be tested is fixedly installed at the upper end of the first cylinder fixing plate 10. A second cylinder fixing plate 14 is fixedly installed at the upper end of the mounting base plate 1, and a cylinder for fixing... The upper end of the upper mounting plate 3 is fixedly mounted with cylinder 13 at one end of the sample to be tested, and cylinder 17 for fixing the upper end of the sample to be tested is fixedly mounted on the upper end of the mounting plate 3. The surface of the helium test base 4 is provided with an annular plate 24 for popping open the sample to be tested. After the helium test is completed, the sample to be tested automatically pops open from the helium test base 4, thus avoiding the need for workers to manually remove the sample from the positioning block 8. This not only saves time but also reduces the labor intensity of workers. The mold fixture based on air tightness testing has good testing sealing performance, can quickly complete the positioning of the sample, and can also realize the rapid replacement of worn seals.

[0025] Please see Figure 2 - Figure 6In this embodiment, the output end of cylinder 19 is fixedly connected to clamp mounting plate 11. A positioning head 12 for blocking one opening of the sample to be tested is fixedly installed on one side of clamp mounting plate 11. The output end of cylinder 213 is fixedly connected to clamp mounting plate 215. A positioning head 216 for blocking one opening of the sample to be tested is fixedly installed on one side of clamp mounting plate 215. The upper surface of the helium detection base 4 is provided with an annular groove 5, and an O-ring seal 6 is provided inside the annular groove 5. The helium detection base 4 is provided with a groove 7, and a positioning block 8 for determining the position of the sample to be tested is fixedly installed inside the groove 7. The positioning block 8 is adapted to the lower end of the sample to be tested. The output end of cylinder 317 passes through the upper mounting plate 3, and a pressure plate 18 is fixedly connected to the output end of cylinder 317. A groove 219 is provided inside the pressure plate 18, and a nitrile rubber ring 20 is provided inside the groove 219. The upper end of the pressure plate 18 is fixedly connected to the upper opening of the sample to be tested. The upper end of the upper mounting plate 3 is fixedly installed with a guide shaft 21, and the upper end of the upper mounting plate 3 is fixedly installed with a flange bearing 22. The guide shaft 21 and the flange bearing 22 are slidably connected. In use, the sample to be tested is first placed on the helium detection base 4 and pressed down by hand. The positioning block 8 plays a role in quick positioning. After positioning, cylinder 19 and cylinder 213 are started at the same time to fix the two sides of the sample to be tested. Positioning head 12 and positioning head 216 block the opening of the sample to be tested at the same time. After the initial positioning is completed, the hand is released and cylinder 317 is started. The pressure plate 18 moves downward to block the upper opening of the sample to be tested and to position the sample. At this time, the helium detection process can be carried out. The guide shaft 21 and the flange bearing 22 are used to ensure that the pressure plate 18 can stably press the sample to be tested and prevent gaps from appearing at the contact point between the pressure plate 18 and the sample to be tested.

[0026] Please see Figure 2 and Figure 7 In this embodiment, the upper surface of the helium detection base 4 is provided with an annular groove. An annular plate 24 is slidably disposed in the annular groove at the upper end of the helium detection base 4. Slide rods 27 are fixedly connected to the four corners at the lower end of the annular plate 24. A spring seat 23 is provided at the lower end of the mounting base 1. The spring seat 23 is connected to the lower end of the slide rod 27. The spring seat 23 is used to lift the annular plate 24. Torsion spring seats 25 are fixedly installed on both sides of the upper end of the annular plate 24. A rotating frame 26 is rotatably connected between the two torsion spring seats 25. The rotating frame 26 is used to spring up the push After the helium test is completed, the spring seat 23 lifts the slide rod 27 upward. The upper end of the slide rod 27 is fixedly connected to the annular plate 24. As the annular plate 24 moves upward, it lifts the sample to be tested, which has lost its positioning support, thereby removing the sample from the positioning block 8. Then, under the action of the torsion spring seat 25, the rotating frame 26 automatically rotates, thereby popping the sample from the annular plate 24. After falling, the sample slides into the receiving box, thus avoiding the need for workers to manually remove the sample from the positioning block 8.

[0027] In use, first place the sample to be tested on the helium detection base 4 and hold it down with your hand. The positioning block 8 is adapted to the lower end of the sample to be tested, thereby achieving a quick positioning effect. After positioning is completed, cylinder 1 9 and cylinder 2 13 are started at the same time to fix the two sides of the sample to be tested. Positioning head 1 12 and positioning head 2 16 simultaneously block the opening of the sample to be tested. After the initial positioning is completed, release your hand and start cylinder 3 17. Cylinder 3 17 drives the pressure plate 18 downward, thereby blocking the upper opening of the sample to be tested and positioning the sample. At this time, the helium detection process can be carried out.

[0028] The upper end of the helium detection base 4 is provided with an O-ring seal 6, and the lower end of the pressure plate 18 is provided with a nitrile rubber ring 20. The positioning head 12 and the positioning head 2 16 simultaneously block the opening of the sample to be tested, thus ensuring the sealing of the helium detection. The fixture mounting plate 2 15 is used to install the positioning head 2 16, and the fixture mounting plate 11 is used to fix the positioning head 12.

[0029] The upper end of the helium detector base 4 is provided with an annular groove 5, which is used to hold the O-ring 6. The lower end of the pressure plate 18 is provided with a groove 19, which is used to hold the nitrile rubber ring 20. During long-term use, the O-ring 6 and the nitrile rubber ring 20 will wear out and need to be replaced. When replacing the O-ring 6 and the nitrile rubber ring 20, simply remove the O-ring 6 and the nitrile rubber ring 20 directly and place the new O-ring 6 and the new nitrile rubber ring 20 into the annular groove 5 and the nitrile rubber ring 20 respectively, thus facilitating the replacement.

[0030] The guide shaft 21 and the flange bearing 22 are used to ensure that the pressure plate 18 can stably press the sample to be tested and prevent gaps from appearing at the contact point between the pressure plate 18 and the sample to be tested.

[0031] After the helium test is completed, the positioning head 12, positioning head 26, and pressure plate 18 are returned to their original positions. The spring seat 23 at the lower end of the mounting base plate 1 pushes the slide rod 27 upward. The upper end of the slide rod 27 is fixedly connected to the annular plate 24. As the annular plate 24 moves upward, it lifts the sample to be tested, which has lost its positioning support, thereby removing the sample from the positioning block 8. Then, under the action of the torsion spring seat 25, the rotating frame 26 automatically rotates, thereby popping the sample to be tested away from the annular plate 24. After falling, the sample slides into the receiving box, thus avoiding the need for workers to manually remove the sample from the positioning block 8.

[0032] Through the above steps, after the helium test is completed, the ring plate 24 of the mold tooling based on airtightness testing will lift the sample to be tested, which has lost its positioning support, thereby removing the sample to be tested from the positioning block 8. The rotating frame 26 will automatically rotate to pop the sample to be tested away. This avoids the need for workers to manually remove the sample from the positioning block 8, which not only saves time but also reduces the labor intensity of workers.

Claims

1. A mold tooling based on air tightness detection, comprising a mounting base plate (1), a supporting column (2) and an upper mounting plate (3); characterized in that: It also includes helium detection base (4), cylinder one (9) and cylinder two (13), the upper end of the mounting bottom plate (1) is fixedly installed with support column (2) at four corners, the upper end of the support column (2) is fixedly installed with upper mounting plate (3), the upper end of the mounting bottom plate (1) is fixedly installed with cylinder fixing plate one (10), the upper end of the cylinder fixing plate one (10) is fixedly installed with cylinder one (9) for fixing one end of the sample to be detected, the upper end of the mounting bottom plate (1) is fixedly installed with cylinder fixing plate two (14), the upper end of the cylinder fixing plate two (14) is fixedly installed with cylinder two (13) for fixing one end of the sample to be detected, the upper end of the upper mounting plate (3) is fixedly installed with cylinder three (17) for fixing the upper end of the sample to be detected, the surface of the helium detection base (4) is provided with an annular plate (24) for bouncing the sample to be detected.

2. The hermeticity detection based mold tooling of claim 1, wherein: The output end of the cylinder one (9) is fixedly connected with the clamp mounting plate one (11), one side of the clamp mounting plate one (11) is fixedly installed with the positioning head one (12) for blocking one side opening of the sample to be detected, the output end of the cylinder two (13) is fixedly connected with the clamp mounting plate two (15), one side of the clamp mounting plate two (15) is fixedly installed with the positioning head two (16) for blocking one side opening of the sample to be detected.

3. The hermeticity detection based mold tooling of claim 2, wherein: The upper end surface of the helium detection base (4) is provided with an annular groove one (5), the annular groove one (5) is provided with an O-shaped sealing ring (6) inside, the helium detection base (4) is provided with a recess one (7) inside, the recess one (7) is fixedly installed with a positioning block (8) inside for determining the position of the sample to be detected, the positioning block (8) is matched with the lower end of the sample to be detected.

4. The hermeticity detection based mold tooling of claim 3, wherein: The output end of the cylinder three (17) penetrates through the upper mounting plate (3), the output end of the cylinder three (17) is fixedly connected with the pressing plate (18), the pressing plate (18) is provided with a recess two (19) inside, the recess two (19) is provided with a nitrile rubber ring (20) inside, the nitrile rubber ring (20) is in contact with the upper end opening of the sample to be detected.

5. The hermeticity detection based mold tooling of claim 4, wherein: The upper end of the pressing plate (18) is fixedly connected with a guide shaft (21), the upper end of the upper mounting plate (3) is fixedly installed with a flange bearing (22), the guide shaft (21) is slidingly connected with the flange bearing (22).

6. The hermeticity detection based mold tooling of claim 5, wherein: The upper end surface of the helium detection base (4) is provided with an annular sliding groove, the annular sliding groove of the upper end of the helium detection base (4) is slidingly provided with an annular plate (24), the lower end of the annular plate (24) is fixedly connected with a sliding rod (27) at four corners, the lower end of the mounting bottom plate (1) is provided with a spring seat (23), the spring seat (23) is connected with the lower end of the sliding rod (27), and the spring seat (23) is used for lifting the annular plate (24).

7. The hermeticity detection based mold tooling of claim 6, wherein: The upper end of the annular plate (24) is fixedly installed with a torsional spring seat (25) at both sides, a rotating frame (26) is rotatably connected between the two torsional spring seats (25), and the rotating frame (26) is used for bouncing and pushing away the sample to be detected.