Airtightness detection device

Abstract

The utility model relates to the field of airtightness detection, and discloses airtightness detection equipment, which comprises a linear pressing unit, the linear pressing unit comprises an auxiliary pressing assembly and a linear pressing assembly, the linear pressing assembly comprises a track, a sliding support, a short-distance pressing arm and a horizontal driving piece, and the sliding support is arranged on the track in a sliding manner. The horizontal driving part is used for driving the sliding support to slide on the track, the sliding support is provided with a short-distance vertical driving part, the upper end of an output shaft of the short-distance vertical driving part is connected with the end of the short-distance pressing arm, and the other end of the pressing part is used for blocking a hole in the upper side of a workpiece; the auxiliary pressing assembly is installed on one side of the rail and comprises an auxiliary driving piece and an auxiliary pressing arm, the upper end of an output shaft of the auxiliary driving piece is connected with the end of the auxiliary pressing arm, the output shaft of the auxiliary driving piece is used for driving the auxiliary pressing arm to ascend, descend and rotate, and the other end of the auxiliary pressing arm is used for pressing the short-distance pressing arm. And the operation space requirement on the workbench is met.

Description

Technical Field

[0001] The utility model relates to the field of airtight detection, in particular to airtight detection equipment. Background Art

[0002] Airtight detection is an assessment of the tight integrity of container-like workpieces. Usually, an air inlet pipe is used to introduce gas into the workpiece through the lower hole of the workpiece. At the same time, a corner cylinder around the workpiece drives a rotating arm to rotate up and down, thereby driving a plugging head to plug the remaining holes on the upper surface of the workpiece, and detecting whether the internal air pressure of the workpiece drops for a period of time, so as to judge whether the airtight detection of the workpiece is qualified.

[0003] However, some workpieces need to be plugged with more holes, or because multiple workpieces need to be detected on one workbench, multiple corner cylinders are required, or the workpiece is large and the holes are located near the center of the workpiece, resulting in a long rotating arm, and it is easy for the rotating arm to interfere with adjacent corner cylinders when rotating.

[0004] In the above situations, requirements are put forward for the operation space on the workbench. It is necessary to meet the plugging requirements of different workpieces and leave enough space to install the workpiece on the workbench. Therefore, an airtight detection equipment is needed to meet the operation space requirements on the workbench. Summary of the Utility Model

[0005] The utility model aims to provide airtight detection equipment to meet the operation space requirements on the workbench.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an airtight detection equipment, including a linear pressing unit, the linear pressing unit includes an auxiliary pressing component and a linear pressing component, the linear pressing component includes a track, a sliding support, a short-range pressing arm and a horizontal driving member, the sliding support is slidably arranged on the track, the horizontal driving member is used to drive the sliding support to slide on the track, a short-range vertical driving member is arranged on the sliding support, the upper end of the output shaft of the short-range vertical driving member is connected to the end of the short-range pressing arm, and the other end of the pressing part is used to plug the hole on the upper side of the workpiece;

[0007] The auxiliary pressing component is installed on one side of the track, the auxiliary pressing component includes an auxiliary driving member and an auxiliary pressing arm, the upper end of the output shaft of the auxiliary driving member is connected to the end of the auxiliary pressing arm, the output shaft of the auxiliary driving member is used to drive the auxiliary pressing arm to lift and rotate, and the other end of the auxiliary pressing arm is used to press the short-range pressing arm.

[0008] The beneficial effects of this scheme are as follows:

[0009] 1. In the initial state, the auxiliary driving member drives the auxiliary pressing arm to rotate to the side away from the track, and the horizontal driving member drives the sliding support to move away from the workpiece on the track;

[0010] Then place the workpiece at the specified position to align the air inlet pipe with the hole at the bottom of the workpiece; thus, when installing the workpiece, the operating space requirements on the workbench are met.

[0011] Next, the horizontal driving member drives the sliding support to move towards the end of the track close to the workpiece, and the short-range vertical driving member drives the short-range pressing arm to move downward, so that the end of the short-range pressing arm blocks the hole on the workpiece; furthermore, before the test starts, each device is restored to the specified position.

[0012] Finally, the auxiliary driving member drives the auxiliary pressing arm to rotate and descend, so that the end of the auxiliary pressing arm presses on the short-range pressing arm, thereby assisting the short-range pressing arm to apply a downward force to the hole, and further making the blockage more airtight.

[0013] 2. It is possible to adjust the length of the short-range pressing arm according to the position of the hole on the upper surface of the workpiece. However, when the short-range pressing arm is relatively long, the vertical force exerted by the short-range vertical driving member cannot be completely transmitted to the free end of the short-range pressing arm, and a part of the vertical force is offset by the deformation of the short-range pressing arm itself; therefore, the main function of the short-range vertical driving member is to make the free end of the short-range pressing arm close to the hole on the upper surface of the workpiece; and the vertical force is mainly provided by the auxiliary driving member.

[0014] 3. Since the function of the auxiliary driving member is to press the short-range pressing arm, the length of the auxiliary pressing arm does not need to be too long. During installation, the distance between the auxiliary driving member and the track should be shortened as much as possible, so that the overhanging length of the short-range pressing arm is small and the structural deformation is small. Furthermore, the auxiliary driving member can effectively transmit the vertical force to the short-range pressing arm, so that the blocked hole is airtight.

[0015] 4. This solution is beneficial for transformation based on the existing technology. For a workbench with a hole on the upper surface of the original workpiece at the edge of the workpiece, if it is suddenly necessary to detect the airtightness of a workpiece with a hole on the upper surface in the middle at the same time, only need to transform an original corner cylinder into an auxiliary pressing assembly, and then add a linear pressing assembly.

[0016] Furthermore, it also includes several rotary pressing units. The rotary pressing unit includes a rotary driving member and a rotary arm. The upper end of the output shaft of the rotary driving member is connected to the end of the rotary arm. The output shaft of the rotary driving member is used to drive the rotary arm to lift and rotate, and the other end of the rotary arm is used to press the upper surface of the workpiece.

[0017] Furthermore, a pressing cylinder is provided at the end of the rotary arm far from the rotary driving member. The pressing cylinder is bolted to the lower surface of the rotary arm, and the pressing cylinder is divided into several replaceable sizes according to the length.

[0018] Further, the sliding support includes a bottom plate which is slidably arranged on the track. A vertical plate is provided on one side of the bottom plate close to the workpiece, and the output shaft of the horizontal driving member is connected to the other side of the bottom plate away from the workpiece. A strip-shaped bolt hole is vertically provided on one side of the vertical plate close to the workpiece, and a small horizontal plate is adjustably bolted to the strip-shaped bolt hole. The short-range vertical driving member is installed on the small horizontal plate.

[0019] Further, a plugging head or a pressing cylinder is replaceably installed at the end of the auxiliary pressing arm.

[0020] Further, both the rotary driving member and the auxiliary driving member are corner cylinders.

[0021] The present solution also has the following effects:

[0022] 1. By installing pressing cylinders with different lengths on the rotary arm to adapt to workpieces of different heights, the upper surfaces of these workpieces can be pressed to prevent air leakage from the lower surfaces of the workpieces.

[0023] 2. The vertical plate and the output shaft of the horizontal driving member are respectively connected to both sides of the bottom plate, so that the forces on both sides are balanced, preventing tipping due to the installation of the short-range driving member on one side of the vertical plate.

[0024] 3. The connection height of the small horizontal plate on the vertical plate is adjustable to adapt to workpieces of different heights.

[0025] 4. A plugging head or a pressing cylinder is replaceably installed at the end of the auxiliary pressing arm; when the upper surface hole is in the middle of the workpiece, the auxiliary pressing arm installs the pressing cylinder, and the auxiliary pressing assembly and the linear pressing assembly cooperate for plugging; when the upper surface hole is at the edge of the workpiece, the auxiliary pressing arm installs the plugging head, and the auxiliary pressing assembly performs plugging alone. Description of the Drawings

[0026] Figure 1 It is the front view of the embodiment;

[0027] Figure 2 It is the top view of the embodiment;

[0028] Figure 3 It is the left view of the embodiment. Detailed Embodiment

[0029] The following is a further detailed description through specific embodiments:

[0030] The reference numerals in the drawings of the specification include: operating table 1, air intake system 2, air intake pipe 21, workpiece placement area 3, track 41, horizontal driving member 42, short-range vertical driving member 51, short-range pressing arm 52, bottom plate 53, vertical plate 54, first connecting member 55, guide rail 56, small horizontal plate 57, second connecting member 58, auxiliary driving member 61, auxiliary pressing arm 62, plugging head 63, rotary driving member 71, rotary arm 72, pressing cylinder 8.

[0031] Embodiment

[0032] The embodiment is basically as Figure 1 shown: An airtight detection device includes an operating table 1. An air intake system 2 is provided inside the operating table 1. The air intake system 2 includes an air inlet pipe 21. The air inlet pipe 21 vertically penetrates through the upper surface of the operating table 1. The penetration area of the air inlet pipe 21 is located within the workpiece placement area 3. The air intake system 2 is used to inflate the workpiece. This is the prior art and will not be elaborated here.

[0033] A linear pressing unit and two rotary pressing units are provided on the operating table 1. The linear pressing unit includes an auxiliary pressing assembly and a linear pressing assembly. The linear pressing assembly includes a track 41, a sliding support, a short-range pressing arm 52, and a horizontal driving member 42. One end of the track 41 faces the workpiece placement area 3, and the other end of the track 41 is away from the workpiece placement area 3. As Figure 3 shown, the track 41 has an I-shaped cross-section. The sliding support includes a bottom plate 53. A chute is opened on the lower side of the bottom plate 53. The shape of the chute matches the upper part of the track 41. The track 41 passes through the chute, and the track 41 is slidably connected to the chute. As Figure 2 shown, a vertical plate 54 is welded to the right side (close to the workpiece side) of the bottom plate 53, and a first connecting member 55 is bolted to the left side (away from the workpiece side) of the bottom plate 53. As Figure 2 、 Figure 3 shown, the other end of the first connecting member 55 is bolted to the output shaft of the horizontal driving member 42. The horizontal driving member 42 is arranged in parallel beside the track 41. A strip-shaped bolt hole is vertically opened on the side of the vertical plate 54 close to the workpiece. A vertical guide rail 56 is also welded on this side. A small horizontal plate 57 is adjustably bolted to the strip-shaped bolt hole. A short-range vertical driving member 51 is installed on the small horizontal plate 57. The upper end of the output shaft of the short-range vertical driving member 51 is bolted to a second connecting member 58. The other end of the second connecting member 58 is bolted to the end of the short-range pressing arm 52. A limiting groove is also opened at the end of the short-range pressing arm 52. The limiting groove is slidably engaged with the guide rail 56. As Figure 1 shown, a plugging head 63 is bolted to the lower surface of the other end of the short-range pressing arm 52. The plugging head 63 is used to plug the hole on the upper side of the workpiece.

[0034] As Figure 2 shown, the auxiliary pressing assembly is installed on one side of the track 41. The auxiliary pressing assembly includes an auxiliary driving member 61 and an auxiliary pressing arm 62. The upper end of the output shaft of the auxiliary driving member 61 is bolted to the end of the auxiliary pressing arm 62. The output shaft of the auxiliary driving member 61 is used to drive the auxiliary pressing arm 62 to lift and rotate. The other end of the auxiliary pressing arm 62 is used to press the short-range pressing arm 52. A plugging head 63 or a pressing cylinder 8 is replaceably bolted to the lower surface of the other end of the auxiliary pressing arm 62.

[0035] The rotary pressing unit includes a rotary driving member 71 and a rotary arm 72. The upper end of the output shaft of the rotary driving member 71 is bolted to the end of the rotary arm 72. The output shaft of the rotary driving member 71 is used to drive the rotary arm 72 to rise and fall and rotate. The lower surface of the other end of the rotary arm 72 is bolted to a pressing cylinder 8. The pressing cylinder 8 is divided into several replaceable sizes according to its length. The pressing cylinder 8 is used to press the upper surface of the workpiece.

[0036] The horizontal driving member 42, the track 41, the rotating driving member 71 and the auxiliary driving member are all bolted to the workbench. The horizontal driving member 42 is a linear cylinder, and the rotating driving member 71 and the auxiliary driving member 61 are both angular cylinders.

[0037] The use of airtight testing equipment is as follows:

[0038] 1. In the initial state, the auxiliary driving member 61 drives the auxiliary pressing arm 62 to rotate to the side away from the track 41, and the horizontal driving member 42 drives the sliding support to move toward the side of the track 41 away from the workpiece;

[0039] 2. Then place the workpiece in the workpiece placement area 3 so that the air inlet pipe 21 is aligned with the bottom hole of the workpiece;

[0040] 3. Next, the horizontal driving member 42 drives the sliding support to move toward one end of the track 41 close to the workpiece, and the short-range vertical driving member 51 drives the short-range pressing arm 52 to move downward, so that the end of the short-range pressing arm 52 blocks the hole on the workpiece.

[0041] 4. Finally, the rotating driving member 71 drives the rotating arm 72 to rotate and move downward, so that the rotating arm 72 presses the workpiece downward; the auxiliary driving member 61 drives the auxiliary pressing arm 62 to rotate and descend, so that the end of the auxiliary pressing arm 62 presses on the short-range pressing arm 52, thereby assisting the short-range pressing arm 52 to apply a downward force to the hole, thereby making the seal tighter.

[0042] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Airtightness detection equipment, characterized in that: It includes a linear pressing unit, which includes an auxiliary pressing assembly and a linear pressing assembly. The linear pressing assembly includes a track, a sliding support, a short-range pressing arm and a horizontal driving member. The sliding support is slidably arranged on the track. The horizontal driving member is used to drive the sliding support to slide on the track. The sliding support is provided with a short-range vertical driving member. The upper end of the output shaft of the short-range vertical driving member is connected to the end of the short-range pressing arm. The other end of the pressing part is used to block the hole on the upper side of the workpiece. The auxiliary pressing assembly is installed on one side of the track. The auxiliary pressing assembly includes an auxiliary driving member and an auxiliary pressing arm. The upper end of the output shaft of the auxiliary driving member is connected to the end of the auxiliary pressing arm. The output shaft of the auxiliary driving member is used to drive the auxiliary pressing arm to lift and rotate. The other end of the auxiliary pressing arm is used to press the short-range pressing arm.

2. The airtightness detection device according to claim 1, characterized in that: It also includes several rotary pressing units, which include a rotary driving member and a rotary arm. The upper end of the output shaft of the rotary driving member is connected to the end of the rotary arm. The output shaft of the rotary driving member is used to drive the rotary arm to lift and rotate, and the other end of the rotary arm is used to press the upper surface of the workpiece.

3. The airtightness detection device according to claim 2, characterized in that: A pressing cylinder is arranged at one end of the rotating arm away from the rotating driving member. The pressing cylinder is connected to the lower surface of the rotating arm with bolts. The pressing cylinder is divided into several replaceable sizes according to the length.

4. The airtightness detection device according to claim 3, characterized in that: The sliding support includes a base plate, which is slidably arranged on a track, a vertical plate is provided on the side of the base plate close to the workpiece, and the side of the base plate away from the workpiece is connected to the output shaft of the horizontal driving member, a strip bolt hole is vertically provided on the side of the vertical plate close to the workpiece, a small horizontal plate is adjustable on the strip bolt hole, and the short-range vertical driving member is installed on the small horizontal plate.

5. The airtightness detection device according to claim 4, characterized in that: A plugging head or a pressing cylinder can be replaceably mounted on the end of the auxiliary pressing arm.

6. The airtightness detection device according to claim 5, characterized in that: The rotary drive member and the auxiliary drive member are both angle cylinders.

Images