CN218566812U

CN218566812U - Workpiece airtightness detection jig

Info

Publication number: CN218566812U
Application number: CN202222483448.6U
Authority: CN
Inventors: 何嘉兴; 陈森; 何柳青; 何伟浩
Original assignee: Zhuhai Jingte Electromechanical Manufacturing Co ltd
Current assignee: Zhuhai Jingte Electromechanical Manufacturing Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-03-03
Anticipated expiration: 2032-09-19

Abstract

The utility model relates to an airtight detection tool technical field especially relates to an airtight detection tool of work piece, the workman can be fast will wait to detect the work piece place on the base of slope, be provided with the first shutoff piece that is used for the positive gas pocket of shutoff work piece on the base and be used for the air vent to work piece inner chamber input pressure, it is provided with the second shutoff piece that is used for shutoff work piece back gas pocket to compress tightly the seat, vertical driving source orders about and compresses tightly the seat downstream and compress tightly the work piece, make the positive gas pocket of first shutoff piece sealing workpiece, the gas vent at the second shutoff piece sealing workpiece back, external gas transmission equipment blows and detects the pressure change of inner chamber in the certain time through the air vent, thereby realize the quick airtight detection to the work piece, it withdraws from the upper end of work piece along the planar direction of perpendicular to base upper end to compress tightly the seat after the detection is accomplished, but quick replacement work piece, promote the efficiency of detection.

Description

Workpiece airtightness detection jig

Technical Field

The utility model relates to an airtight detection tool technical field especially relates to an airtight detection tool of work piece.

Background

The tightness detection is usually required to be carried out on a workpiece with an inner cavity in production and processing, the watertight detection is usually adopted in a workshop at present, and in such a way, workers are required to observe whether bubbles exist during detection, so that the efficiency is low, and uncertainty exists; in addition, although the air tightness detection method is adopted, when a workpiece with a plurality of air outlet holes is detected, all the air outlet holes need to be blocked one by one, and the operation is troublesome.

SUMMERY OF THE UTILITY MODEL

In order to solve one of the technical problems existing in the prior art, the utility model adopts the following technical scheme:

a workpiece airtightness detection jig comprises:

a base;

the base is obliquely arranged on the base, an air vent and at least one first blocking piece are arranged on the base, one end of the air vent is connected with external air transmission equipment, and the first blocking piece is used for blocking an air hole in the front of a workpiece;

the pressing seat is arranged above the base, one end of the pressing seat is connected with a vertical driving source, the other end of the pressing seat is provided with at least one second plugging piece, the second plugging piece is used for plugging an air hole in the back of a workpiece, and the vertical driving source can drive the pressing seat to reciprocate along the direction vertical to the upper end plane of the base;

wherein the first and/or second closure is made of a rubber material.

The embodiment of the utility model provides a pair of work piece airtightness detection tool, the workman can place the work piece that waits to detect fast on the base of slope, be provided with the first shutoff piece that is used for the positive gas pocket of shutoff work piece on the base and be used for the air vent to work piece inner chamber input pressure, it is provided with the second shutoff piece that is used for shutoff work piece back gas pocket to compress tightly the seat, vertical driving source orders about compresses tightly the seat downstream and compresses tightly the work piece, make the positive gas pocket of first shutoff piece sealing workpiece, the gas vent at the second shutoff piece sealing workpiece back, external gas transmission equipment blows and detects the pressure change of inner chamber in the certain time through the air vent to the inner chamber of work piece, thereby realize the quick airtight detection of work piece, it withdraws from the upper end of work piece along the planar direction of perpendicular to base upper end to compress tightly the seat after the detection is accomplished, but quick replacement work piece, promote the efficiency of detection.

In some possible implementations, the first closure protrudes from an upper end face of the base, and the vent hole is disposed on the first closure.

In some possible implementations, there are several of the vent holes, and all of the vent holes are communicated by a vent pipe.

In some possible implementations, the first block piece has a sealing groove formed on an upper surface thereof, and the air hole structure protruding from the workpiece is receivable in the sealing groove.

In some possible implementations, the second closing piece is designed integrally with the pressure socket.

In some possible implementations, the second blocking piece protrudes from a lower end face of the compression seat.

In some possible implementations, the second closure piece is in the shape of a conical cylinder.

In some possible implementation manners, a lifting rod is further arranged on the base, the lifting rod is connected with a lifting driving source, and the lifting rod can move in a direction perpendicular to the plane of the upper end of the base and lift the workpiece from the base.

In some possible implementation manners, the base and the pressing seat are respectively provided with a plurality of pressing seats and are correspondingly arranged on the base.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a workpiece air tightness detection fixture according to an embodiment of the present invention;

fig. 2 is an assembly schematic view of a base and a pressing seat part provided in an embodiment of the present invention;

fig. 3 is a top view of a base portion according to an embodiment of the present invention.

Reference numerals: a base 10; a base 11; a pressing base 12; a vent hole 13; a first block piece 14; a vertical drive source 15; a second closure 16; a workpiece 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a workpiece airtightness detection jig includes a base 10 and a base 11 obliquely installed on the base 10, the base 11 is provided with a vent hole 13 and at least one first blocking piece 14, an external gas transmission detection device can input gas into an inner cavity of a workpiece 20 through the vent hole 13 and detect pressure change of the inner cavity of the workpiece 20 within a period of time, so as to complete airtightness detection, the front side of the workpiece 20 has a gas inlet hole matched with the vent hole 13, the first blocking piece 14 is used for blocking a plurality of gas holes on the front side of the workpiece 20, the base 10 is further provided with a pressing base 12, the pressing base 12 is located above the base 11 and is connected with a vertical driving source 15, the lower end of the pressing base 12 is provided with at least one second blocking piece 16, the workpiece 20 is placed on the base 11, the vertical driving source 15 can drive the pressing base 12 to move in a direction perpendicular to an upper end plane of the base 11 and press the workpiece 20, and at this time, the second blocking piece 16 can block a plurality of gas holes on the back side of the workpiece 20, so as to ensure that the inner cavity of the workpiece 20 is in a sealed state and can only pass through the gas inlet hole when airtightness detection is performed; the first blocking piece 14 and/or the second blocking piece 16 can be made of rubber materials, the vertical driving source 15 can drive the pressing base 12 to apply downward force to the workpiece 20, the first blocking piece 14 and the second blocking piece 16 are elastically deformed to a certain degree, air tightness between the first blocking piece 14/the second blocking piece 16 and an air hole can be ensured, after detection is completed, the vertical driving source 15 drives the pressing base 12 to move upwards in a direction perpendicular to the upper end plane of the base 11 to reset, the workpiece 20 which is detected on the base 11 can be quickly taken down and replaced by another workpiece 20 to be detected, and the air tightness detection efficiency is improved; the utility model discloses a base 11 that the slope set up can also realize fixing a position the work piece 20 fast, makes things convenient for the operator to place work piece 20 on base 11 or take out work piece 20 from base 11 fast.

In some possible implementations, the first blocking piece 14 protrudes from the upper end face of the base 11, and the vent hole 13 is disposed on the first blocking piece 14, in this embodiment, the air inlet hole on the workpiece 20 is a conventional air inlet hole, and the first blocking piece 14 provided with the vent hole 13 can seal around the vent hole 13 and the air inlet hole to ensure that the vent hole 13 is communicated with the air inlet hole.

In some possible implementation manners, the number of the vent holes 13 is several, and all the vent holes 13 are communicated through vent pipes, specifically, all the air holes on the front surface of the workpiece 20 are used as air inlet holes for air tightness detection, at this time, the first blocking piece 14 can be in pressure contact with the front surface of the workpiece 20 and form a sealed cavity around the air inlet holes, and all the vent holes 13 are communicated through the vent pipes and synchronously convey air to the inner cavity of the workpiece 20, so that the inner cavity of the workpiece 20 is rapidly pressurized, and the detection efficiency is improved.

In some possible implementation manners, a sealing groove is formed on the upper surface of the first blocking piece 14, and the protruding air hole structure on the workpiece 20 can be accommodated in the sealing groove, in this embodiment, the upper end surface of the first blocking piece 14 is pressed against the end surface of the workpiece 20, so as to form a sealing cavity in the sealing groove, thereby realizing that the air hole of the workpiece 20 is isolated from the outside in the sealing cavity, and an external air transmission detection device can communicate with the sealing cavity through the air hole 13, so as to communicate with the air inlet hole of the workpiece 20.

In some possible implementations, the second blocking element 16 protrudes from the lower end face of the pressing seat 12, and the second blocking element 16 and the pressing element are integrally formed, in this embodiment, the second blocking element 16 can be tightly attached to the area around the air inlet on the back surface of the workpiece 20, so as to completely block the air inlet.

In some possible implementations, the second blocking element 16 is in the shape of a conical cylinder, and the second blocking element 16 can be inserted into the air inlet opening and penetrate into the air inlet opening, thereby blocking and sealing the air inlet opening.

In some possible implementation manners, a lifting rod (not shown) is further arranged on the base 11, the lifting rod is connected with a lifting driving source, the lifting driving source can drive the lifting rod to move in a direction perpendicular to the upper end plane of the base 11 and lift the workpiece 20 from the base 11, specifically, when some workpieces 20 with small sizes are detected, in order to position the workpieces 20 with small sizes on the base 11, a positioning groove can be arranged on the base 11, the overall dimension of the positioning groove is matched with the overall dimension of the workpiece 20, the first blocking piece 14 is arranged in the positioning groove, the lifting rod can lift the workpiece 20 from the positioning groove after detection is completed, and a worker can conveniently take the detected workpiece 20.

In some possible implementation manners, the base 11 and the pressing seat 12 are provided with a plurality of parts and are correspondingly arranged on the base 10, specifically, the pressing seat 12 can be opened and closed independently, so that the worker can perform linear operation, that is, the workpieces 20 on different bases 11 are detected in sequence, and the workpieces 20 which are detected can be taken in sequence and the workpieces 20 to be detected can be placed.

It should be noted that, in order to ensure that the first blocking piece 14/the second blocking piece 16 can completely realize the function of sealing the air hole, the cross-sectional dimensions of the first blocking piece 14 and the second blocking piece 16 are larger than the dimensions of the blocking area, and the heights of the protrusions or the depressions of the first blocking pieces 14 on the base 11 are different and the heights of the protrusions of the second blocking pieces 16 on the pressing seat 12 are also different according to the differences of the heights of the protrusions or the depressions of the blocking area on the surface of the workpiece 20.

The above description is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or replacements within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A tool for detecting the air tightness of a workpiece is characterized by comprising,

a base (10);

the base (11) is obliquely arranged on the base (10), a vent hole (13) and at least one first blocking piece (14) are arranged on the base (11), one end of the vent hole (13) is connected with external gas transmission equipment, and the first blocking piece (14) is used for blocking the air hole in the front face of the workpiece (20);

the pressing seat (12) is arranged above the base (11), one end of the pressing seat is connected with a vertical driving source (15), the other end of the pressing seat is provided with at least one second plugging piece (16), the second plugging piece (16) is used for plugging an air hole in the back of a workpiece (20), and the vertical driving source (15) can drive the pressing seat (12) to reciprocate in the direction perpendicular to the plane of the upper end of the base (11);

wherein the first closure element (14) and/or the second closure element (16) is made of a rubber material.

2. A work airtightness detection jig according to claim 1, wherein the first blocking member (14) protrudes from the upper end surface of the base (11), and the vent hole (13) is provided in the first blocking member (14).

3. The workpiece airtightness detection jig according to claim 2, wherein there are a plurality of said vent holes (13), and all of said vent holes (13) are communicated through a vent pipe.

4. The air tightness detecting jig for workpieces as claimed in claim 1, wherein the first plugging member (14) has a sealing groove formed on an upper surface thereof, and the air hole structure protruding from the workpiece (20) is received in the sealing groove.

5. The workpiece air tightness detection jig according to claim 1, characterized in that the second plugging member (16) is integrally formed with the pressing base (12).

6. The workpiece airtightness detection jig according to claim 5, wherein the second plugging member (16) protrudes from the lower end surface of the pressing base (12).

7. The workpiece airtightness detection jig according to claim 6, wherein the second plugging member (16) has a tapered cylindrical shape.

8. The tool for detecting the airtightness of the workpiece according to claim 7, wherein a lifting rod is further disposed on the base (11), the lifting rod is connected to a lifting driving source, and the lifting rod can move in a direction perpendicular to the upper end plane of the base (11) and lift the workpiece (20) from the base (11).

9. The airtightness detection jig for workpieces according to claim 1, wherein a plurality of the bases (11) and the pressing bases (12) are correspondingly arranged on the base (10).