Airtightness detection equipment for screw head product production

Abstract

The utility model discloses a kind of air tightness detection equipment for screw head product production, specifically related to screw head product production technical field, including placing mechanism, placing mechanism includes placing seat, is equipped with a plurality of detection holes on placing seat, air inlet is provided on placing seat, air inlet is communicated with detection hole, water tank is provided on base, placing seat is adapted with water tank.The utility model is through being provided with supporting mechanism, detection mechanism and placing mechanism, by using common air cylinder and the like driving member, cooperate simple screw placing seat, by using the simple physical phenomenon that leaked gas will produce bubble in water, to complete the air tightness detection of screw head quickly, intuitively, use effect is good, manufacturing cost is low.

Description

Technical Field

[0001] This utility model relates to the field of screw head product manufacturing technology, and more specifically, to an airtightness testing device for screw head product manufacturing. Background Technology

[0002] Screw heads are among the most basic and widely used fasteners in the industrial field. Their threaded structure enables the detachable connection of two or more components, and their design, materials, and performance directly affect the stability, safety, and service life of equipment. Therefore, screw heads undergo rigorous quality control after production, with airtightness testing being a crucial component, especially for screw heads used to connect to equipment requiring water or air circulation, such as stainless steel screw heads.

[0003] Common stainless steel screw heads typically consist of two main parts: a head and a threaded shank. The surface of the head that contacts the connected component is usually called the bearing surface. When performing airtightness testing on this type of screw head, the bearing surface and the contact surface of the connected component must fit tightly together, and there must be no obvious defects extending to the edge on the bearing surface to meet the airtightness requirements. Existing airtightness testing usually requires the use of a dedicated airtightness testing instrument, such as a differential pressure airtightness testing instrument, which has a high-precision differential pressure sensor inside. Although the testing accuracy is high, the manufacturing cost is also high. For small-batch production of screw head products, the cost of using traditional airtightness testing instruments is relatively high. Utility Model Content

[0004] This utility model provides an airtightness testing device for screw head production. The problem it aims to solve is that existing screw head airtightness testing usually requires the use of a dedicated airtightness tester, such as a differential pressure airtightness tester, which has a high manufacturing cost. For small-batch processing of screw head products, the traditional airtightness tester is also expensive to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an airtightness testing device for screw head product manufacturing, comprising: a support mechanism, the support mechanism including a base, and a support plate vertically arranged on the base;

[0006] A detection mechanism is provided on the support plate. The detection mechanism includes a drive component 1, which is vertically mounted on the support plate. A mounting plate is provided at the output end of the drive component 1. A mounting base is provided at the bottom of the mounting plate. Connecting rods are provided at the four corners of the mounting base. Springs are provided on the connecting rods. The connecting rods are slidably connected to the mounting plate. A placement mechanism is provided on the mounting base. The placement mechanism includes a placement seat with several detection holes and an air inlet connected to the detection holes. A water tank is provided on the base, and the placement seat is adapted to the water tank.

[0007] In a preferred embodiment, the mounting plate has a plurality of observation slots that are adapted to the detection holes.

[0008] In a preferred embodiment, the mounting base is provided with a slot, and the placement base is adapted to the slot.

[0009] In a preferred embodiment, a reinforcing plate is provided on the side of the support plate away from the water tank.

[0010] In a preferred embodiment, a positioning groove is provided on the outer side of the top of the detection hole, a bracket is provided on the detection hole, a plurality of through holes are provided on the bracket, the through holes are adapted to the detection hole, and a plurality of positioning rings are provided at the bottom of the bracket, the positioning rings are adapted to the positioning groove.

[0011] In a preferred embodiment, a handle is provided on the front side of the placement seat.

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

[0013] This utility model, by setting up a support mechanism, a detection mechanism, and a placement mechanism, and by using common driving components such as cylinders, along with a simple screw placement seat, utilizes the simple physical phenomenon that leaked gas will generate bubbles in water, thereby quickly and intuitively completing the airtightness test of the screw head. It has good performance and low manufacturing cost.

[0014] This invention, by setting a replaceable bracket, can meet the testing needs of various screw head specifications without changing the placement base, thus having high versatility and further reducing the cost of use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the mounting plate portion of this utility model.

[0017] Figure 3 This is a schematic diagram of the placement base portion of this utility model.

[0018] Figure 4 This is a schematic diagram of the mounting base portion of this utility model.

[0019] Figure 5 This is a schematic diagram of the support structure of this utility model.

[0020] The attached figures are labeled as follows: 1. Support mechanism; 11. Base; 12. Support plate; 13. Reinforcing plate; 2. Detection mechanism; 21. Drive assembly one; 22. Mounting plate; 23. Observation slot; 24. Mounting seat; 25. Connecting rod; 26. Spring; 27. Slot; 3. Placement mechanism; 31. Placement seat; 32. Detection hole; 33. Air inlet; 34. Positioning slot; 35. Bracket; 36. Through hole; 37. Positioning ring; 38. Handle; 4. Water tank. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content. Example

[0022] Refer to the instruction manual appendix Figures 1 to 5 This embodiment proposes an airtightness testing device for screw head production to solve the problem that in the prior art, screw head airtightness testing usually requires the use of a dedicated airtightness tester, such as a differential pressure airtightness tester, which has a high manufacturing cost. For small-batch processing of screw head products, the traditional airtightness tester is also expensive to use.

[0023] Includes: a support mechanism 1, which includes a base 11 and a support plate 12 vertically mounted on the base 11;

[0024] It should be noted that the base 11 is placed horizontally on the workbench, which facilitates operation by the staff. This is a mature technology well known to those in the art, and will not be described in detail in this embodiment.

[0025] The feature is that a detection mechanism 2 is provided on the support plate 12. The detection mechanism 2 includes a drive component 21, which is vertically arranged on the support plate 12. A mounting plate 22 is provided at the output end of the drive component 21. A mounting seat 24 is provided at the bottom of the mounting plate 22. A connecting rod 25 is provided at each of the four corners of the mounting seat 24. A spring 26 is provided on the connecting rod 25. The connecting rod 25 is slidably connected to the mounting plate 22. A placement mechanism 3 is provided on the mounting seat 24. The placement mechanism 3 includes a placement seat 31. A plurality of detection holes 32 are opened on the placement seat 31. An air inlet 33 is provided on the placement seat 31. The air inlet 33 is connected to the detection holes 32. A water tank 4 is provided on the base 11. The placement seat 31 is adapted to the water tank 4.

[0026] It should be noted that the drive component 21 is a cylinder used to push the mounting plate 22 to move back and forth in the vertical direction. In the initial state, the top of the placement seat 31 is in contact with the bottom of the mounting plate 22. The number of detection holes 32 can be set according to the actual situation, and the air inlet 33 is connected to all the detection holes 32. The air inlet 33 is connected to an air supply device, such as an air pump, which is a mature technology well known to those in the art and will not be described in detail in this embodiment.

[0027] It should also be noted that the water tank 4 is pre-filled with enough clean water, and the water depth is greater than the distance from the bottom of the placement seat 31 to the top of the mounting plate 22.

[0028] In this embodiment, the specific implementation scenario is as follows: First, the screw heads to be tested are placed into the corresponding test holes 32 in sequence. Then, the mounting base 24 is pressed down to pull the mounting base 24 away from the mounting plate 22. Next, the placement base 31 pre-loaded with screw heads is inserted into the slot 27, so that the placement base 31 can be stably installed on the mounting base 24. At this time, the mounting base 24 can be released, and the spring 26 can be contracted to drive the mounting base 24 to reset. Then, the mounting plate 22 tightly presses the screw head onto the placement base 31, so that the screw head can completely block the test hole 32. At this time, the drive assembly 21 can be activated to drive the mounting plate 22 to move down, and finally the mounting plate 22 is immersed in the clean water in the water tank 4. Then, the air supply device is activated to deliver gas into the air inlet 33. If the screw head has poor air tightness, bubbles will emerge near the corresponding test hole 32, so that the air tightness of the screw head can be quickly and intuitively detected, and the effect is good.

[0029] The mounting plate 22 has several observation slots 23, which are adapted to the detection holes 32.

[0030] It should be noted that the observation slot 23 allows staff to accurately observe the specific location of the bubbles, avoiding obstruction by the mounting plate 22, thus enabling accurate positioning of defective screw heads.

[0031] The mounting base 24 is provided with a slot 27, and the placement base 31 is adapted to the slot 27.

[0032] It should be noted that by setting the slot 27, the placement seat 31 can be quickly placed on the mounting seat 24, which facilitates disassembly and assembly, thereby effectively improving the detection efficiency.

[0033] A reinforcing plate 13 is provided on the side of the support plate 12 away from the water tank 4.

[0034] It should be noted that the reinforcing plate 13 is used to enhance the stability of the support plate 12. Example

[0035] Based on Example 1, refer to the appendix of the specification. Figures 1 to 5 This embodiment proposes a placement mechanism 3 to solve the problem in the prior art that the traditional placement seat 31 can usually only be adapted to a single specification of screw head, resulting in poor versatility; for example, when the top diameter of the screw head to be tested is smaller than the inner diameter of the test hole 32, it is necessary to replace the appropriate placement seat 31 to perform the test, thereby significantly increasing the test cost.

[0036] A positioning groove 34 is provided on the outer side of the top of the detection hole 32. A bracket 35 is provided on the detection hole 32. Several through holes 36 are provided on the bracket 35. The through holes 36 are adapted to the detection hole 32. Several positioning rings 37 are provided at the bottom of the bracket 35. The positioning rings 37 are adapted to the positioning groove 34.

[0037] It should be noted that the bracket 35 is a replaceable part, thereby accommodating the use of various screw head sizes, and the number of through holes 36 can be adjusted according to actual conditions. This is a mature technology well known to those skilled in the art, and will not be described in detail in this embodiment.

[0038] It should also be noted that the positioning ring 37 is a rubber gasket, which not only facilitates the positioning and installation of the bracket 35, but also seals the connection between the bracket 35 and the placement seat 31, thereby avoiding any impact on the test results.

[0039] A handle 38 is provided on the front side of the placement seat 31.

[0040] It should be noted that the handle 38 makes it easy for staff to pick up and place the seat 31.

[0041] In this embodiment, the specific implementation scenario is as follows: In actual use, firstly, a bracket 35 that matches the specification of the screw head to be tested is placed on the placement base 31, and then the screw head to be tested is placed in the corresponding through hole 36, and then the test can be carried out according to the aforementioned test method.

[0042] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An airtightness testing device for screw head product manufacturing, comprising: Support mechanism (1), the support mechanism (1) includes a base (11), and a support plate (12) is vertically arranged on the base (11); The feature is that a detection mechanism (2) is provided on the support plate (12), the detection mechanism (2) includes a drive assembly (21), the drive assembly (21) is vertically arranged on the support plate (12), the output end of the drive assembly (21) is provided with a mounting plate (22), the bottom of the mounting plate (22) is provided with a mounting seat (24), the four corners of the mounting seat (24) are provided with connecting rods (25), and the connecting rods (25) are provided with springs (26). The connecting rod (25) is slidably connected to the mounting plate (22). The mounting base (24) is provided with a placement mechanism (3). The placement mechanism (3) includes a placement seat (31). The placement seat (31) is provided with a plurality of detection holes (32). The placement seat (31) is provided with an air inlet (33). The air inlet (33) is connected to the detection holes (32). The base (11) is provided with a water tank (4). The placement seat (31) is adapted to the water tank (4).

2. The airtightness testing equipment for screw head product manufacturing according to claim 1, characterized in that, The mounting plate (22) has several observation slots (23) that are adapted to the detection holes (32).

3. The airtightness testing equipment for screw head product manufacturing according to claim 2, characterized in that, The mounting base (24) is provided with a slot (27), and the placement base (31) is adapted to the slot (27).

4. The airtightness testing equipment for screw head product manufacturing according to claim 3, characterized in that, A reinforcing plate (13) is provided on the side of the support plate (12) away from the water tank (4).

5. The airtightness testing equipment for screw head product manufacturing according to claim 4, characterized in that, The detection hole (32) has a positioning groove (34) on the outer side of its top end. A bracket (35) is provided on the detection hole (32). A plurality of through holes (36) are provided on the bracket (35). The through holes (36) are adapted to the detection hole (32). A plurality of positioning rings (37) are provided at the bottom of the bracket (35). The positioning rings (37) are adapted to the positioning groove (34).

6. The airtightness testing equipment for screw head product manufacturing according to claim 5, characterized in that, A handle (38) is provided on the front side of the placement seat (31).

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