CN215984364U

CN215984364U - Pressing and holding mechanism for helium detection

Info

Publication number: CN215984364U
Application number: CN202121477297.2U
Authority: CN
Inventors: 相晓峰; 孟维林; 齐远东; 张升芳; 林国峰
Original assignee: Ningbo Xusheng Auto Technology Co Ltd
Current assignee: Ningbo Xusheng Group Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-30
Publication date: 2022-03-08
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a pressure mechanism for helium detection, which comprises: a first pressure holding assembly comprising a pressure block; and the second pressing component comprises a sliding part, a plurality of elastic pieces are arranged between the sliding part and the pressing block, and the sliding part slides along the direction towards or away from the workpiece so as to enable the pressing block to abut against or separate from the workpiece. In this application, set up a plurality of elastic components between slider and briquetting, when the slider drives the briquetting and presses and hold the work piece, produce the deformation of different degrees between a plurality of elastic components, and then make the briquetting laminate with the work piece surface all the time to the pressure that each position of messenger's work piece received is unanimous, has solved because of the inhomogeneous unstable problem that disturbs the helium detection that makes its shutoff of the pressure of each position of work piece.

Description

Pressing and holding mechanism for helium detection

Technical Field

The utility model relates to the technical field of helium detection equipment, in particular to a pressure maintaining mechanism for helium detection.

Background

When product workpieces are detected, the heights of the left end, the right end, the front end and the rear end of the upper surfaces of the product workpieces are different, the heights of the left end, the right end, the front end and the rear end of the lower surface of the pressing block are fixed, the lower surface of the pressing block cannot be attached to the upper surfaces of certain products, the contact area between the pressing block and the products is further reduced, the pressing effect is poor, and the pressing block and the products are easily damaged; more importantly, because the product height parameters are different, the pressure on each part is uneven, so that certain parts cannot be blocked, and the helium detection result is interfered finally.

Disclosure of Invention

In view of the above-mentioned disadvantages of the prior art, an object of the present invention is to provide a pressure maintaining mechanism for helium detection, which solves the problem of uneven pressure at various parts of a product in the prior art.

The technical scheme adopted by the utility model for solving the technical problem is a pressure maintaining mechanism for helium detection, which comprises:

a first pressure holding assembly comprising a pressure block;

and the second pressing component comprises a sliding part, a plurality of elastic pieces are arranged between the sliding part and the pressing block, and the sliding part slides along the direction towards or away from the workpiece so as to enable the pressing block to abut against or separate from the workpiece.

Furthermore, a plurality of gaps are formed in the pressing block, a spring is arranged at each gap, one end of each spring is in contact with the pressing block, and the other end of each spring abuts against or is separated from the sliding piece.

Furthermore, four notches are formed in the pressing block, a spring is arranged at each notch, and the four springs are respectively located at four end points of a rectangle.

Further, the pressing block is provided with a first end face, the sliding part is provided with a second end face, and the elastic part is compressed to enable the first end face to be abutted against or separated from the second end face.

Furthermore, one end, deviating from the first end face, of the pressing block is provided with an arc face, and the arc face is attached to the surface of the workpiece.

Further, the sliding part comprises a top plate and four side plates connected with the top plate;

the workpiece is fixedly arranged on a fixing plate, and when the sliding part slides to the side plate to abut against the fixing plate, the pressing block is limited to move towards the workpiece.

Further, the workpiece clamping device further comprises a power assembly for driving the sliding piece to slide in the direction towards or away from the workpiece.

Further, the power assembly includes: the sliding piece is sleeved on the guide posts and can slide along the length direction of the guide posts; the mounting plate is fixed on the guide pillar; the telescopic cylinder is fixed on the mounting plate, and a telescopic rod of the telescopic cylinder is connected with the sliding piece.

Furthermore, a plurality of guide sleeves are fixedly connected to the sliding part and sleeved on the guide pillars.

Compared with the prior art, the utility model has at least the following beneficial effects:

(1) set up a plurality of elastic components between slider and briquetting, when the slider drives the briquetting and presses and hold the work piece, produce the deformation of different degrees between a plurality of elastic components, and then make the briquetting laminate with the work piece surface all the time to the pressure that each position of messenger's work piece received is unanimous, has solved because of the inhomogeneous unstable problem that disturbs the helium of its shutoff that makes of the pressure of each position of work piece and has examined.

(2) Four springs are arranged at four end positions of a rectangle, and the height difference can be absorbed by the four springs no matter the height of the workpiece in any direction around and the height of the workpiece in other directions, so that the pressing block is always attached to the surface of the workpiece, and the pressure on each part of the workpiece is consistent.

(3) Set up first terminal surface and second terminal surface, when first terminal surface offsets with the second terminal surface, the continuation compression of restriction spring has avoided damaging the spring because of the dynamics of pressing is too big.

(4) Set up curb plate and fixed plate, when the curb plate offsets with the fixed plate, the restriction briquetting increase is pressed and is held the dynamics, avoids causing the work piece or pressing the mechanism to damage because of pressing and holding the dynamics too big, can play spacing guard action.

Drawings

Fig. 1 is a schematic structural view of a pressure support mechanism in the embodiment;

FIG. 2 is a schematic view of the structure of FIG. 1 with the side plate removed;

FIG. 3 is a schematic structural diagram of a top plate and a pressing block in the embodiment;

FIG. 4 is a schematic structural view of a briquette in an example;

in the figure:

100. a slider; 110. a top plate; 111. a second end face; 120. a side plate;

200. a workpiece; 210. a fixing plate;

300. a telescopic cylinder; 310. mounting a plate; 320. a guide post; 321. a guide sleeve;

400. briquetting; 410. a first end face; 420. a cambered surface; 430. a notch; 440. a spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Referring to fig. 1-4, the present invention discloses a pressure maintaining mechanism for helium detection, comprising:

a first holding assembly comprising a compact 400;

a second pressure holding assembly including a sliding member 100, wherein a plurality of elastic members are disposed between the sliding member 100 and the pressing block 400, and the sliding member 100 slides in a direction toward or away from the workpiece 200 to press or separate the pressing block 400 against or from the workpiece 200.

Specifically, in this embodiment, a plurality of elastic members are provided between the slider 100 and the pressing block 400, and when the slider 100 drives the pressing block 400 to press the workpiece 200, deformation of different degrees is generated between the plurality of elastic members, so that the pressing block 400 can be always attached to the surface of the workpiece 200, the pressures applied to the parts of the workpiece 200 are consistent, and the problem that helium detection is interfered due to unstable sealing caused by uneven pressure of the parts of the workpiece 200 is solved.

Further, the pressing block 400 is provided with a plurality of notches 430, a spring 440 is disposed at each notch 430, one end of the spring 440 contacts with the pressing block 400, and the other end of the spring 440 abuts against or separates from the sliding member 100.

Further, the pressing block 400 is provided with four notches 430, each notch 430 is provided with one spring 440, and the four springs 440 are respectively located at four end points of a rectangle.

The four springs 440 are arranged at four end positions of a rectangle, and no matter the height of the workpiece 200 in any direction, such as front, back, left and right, is different from the height of other directions, the four springs 440 can absorb the height difference, so that the pressing block 400 is always attached to the surface of the workpiece 200, and the pressure on each part of the workpiece 200 is consistent. That is, the four springs 440 may absorb height differences from different directions on the workpiece 200.

Further, the pressing block 400 has a first end surface 410, the sliding member 100 has a second end surface 111, and the elastic member is compressed to make the first end surface 410 abut against or separate from the second end surface 111.

When the pressure block 400 does not press the workpiece 200, a gap is formed between the first end surface 410 and the second end surface 111, and when the pressure block 400 gradually presses the workpiece 200 to a certain degree (i.e., after the spring 440 is compressed to a certain degree), the first end surface 410 and the second end surface 111 abut against each other, so that the continuous compression of the spring 440 is restricted, and the spring 440 is prevented from being damaged due to an excessive pressing force.

Further, an end of the pressing block 400 facing away from the first end face 410 has an arc 420, and the arc 420 is attached to the surface of the workpiece 200.

The upper surface of the workpiece 200 is arc-shaped, so that the lower surface of the pressing block 400 is the arc-shaped surface 420, the lower surface of the pressing block 400 is attached to the upper surface of the workpiece 200, all parts of the workpiece 200 are stressed more uniformly, the contact area of the parts is larger, and the surface is not easy to damage.

Further, the sliding member 100 includes a top plate 110 and four side plates 120 connected to the top plate 110;

the workpiece 200 is mounted and fixed on a fixing plate 210, and when the sliding member 100 slides to the side plate 120 to abut against the fixing plate 210, the pressing block 400 is limited to move in the direction toward the workpiece 200.

When the side plate 120 offsets the fixed plate 210, the pressure block 400 can be limited from increasing the pressure, so that the workpiece 200 or the pressure mechanism is prevented from being damaged due to the excessive pressure, and a limiting protection effect can be achieved.

Further, the device further comprises a power assembly for driving the sliding member 100 to slide in a direction towards or away from the workpiece 200.

Further, the power assembly includes: a plurality of guide posts 320, wherein the sliding member 100 is sleeved on the guide posts 320 and can slide along the length direction of the guide posts 320; a mounting plate 310 fixed to the guide post 320; and a telescopic cylinder 300 fixed to the mounting plate 310, wherein a telescopic rod of the telescopic cylinder 300 is connected to the slider 100.

Specifically, the telescopic cylinder 300 is telescopic, and drives the slider 100 to slide along the guide post 320, so as to drive the press block 400 to move, so that the press block 400 can press the workpiece 200 or be separated from the workpiece 200.

Further, the sliding member 100 is fixedly connected with a plurality of guide sleeves 321, and the guide sleeves 321 are sleeved on the guide pillars 320.

The guide sleeve 321 is arranged to be sleeved on the guide post 320, so that the sliding direction between the slider 100 and the guide post 320 is prevented from deviating, and the pressing force is kept unchanged.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims

1. A pressure maintenance mechanism for helium detection, comprising:

a first pressure holding assembly comprising a pressure block;

2. The pressure mechanism for helium test as claimed in claim 1, wherein the pressure block has a plurality of notches, each notch has a spring, one end of the spring contacts with the pressure block, and the other end of the spring abuts against or separates from the sliding member.

3. The pressure mechanism according to claim 2, wherein the pressure block defines four notches, one spring is disposed at each notch, and the four springs are located at four ends of a rectangle.

4. The pressure mechanism for helium detection as claimed in claim 1, wherein the pressure block has a first end surface, the sliding member has a second end surface, and the elastic member is compressed to abut against or separate the first end surface and the second end surface.

5. The pressure mechanism for helium detection of claim 4, wherein the end of the compact facing away from the first end surface has a cambered surface that conforms to the surface of the workpiece.

6. The pressure mechanism for helium detection according to claim 1, wherein the slide member includes a top plate and four side plates connected to the top plate;

7. A pressure maintaining mechanism for helium detection as claimed in any one of claims 1-6, further comprising a power assembly for sliding the slide in a direction towards or away from the workpiece.

8. The pressure mechanism for helium detection according to claim 7, wherein the power assembly includes: the sliding piece is sleeved on the guide posts and can slide along the length direction of the guide posts; the mounting plate is fixed on the guide pillar; the telescopic cylinder is fixed on the mounting plate, and a telescopic rod of the telescopic cylinder is connected with the sliding piece.

9. The pressure mechanism according to claim 8, wherein a plurality of guide sleeves are fixed to the sliding member, and the guide sleeves are fitted over the guide posts.