CN110849558A - Tool of sun gear assembly welding seam sealing test - Google Patents
Tool of sun gear assembly welding seam sealing test Download PDFInfo
- Publication number
- CN110849558A CN110849558A CN201911293922.5A CN201911293922A CN110849558A CN 110849558 A CN110849558 A CN 110849558A CN 201911293922 A CN201911293922 A CN 201911293922A CN 110849558 A CN110849558 A CN 110849558A
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- CN
- China
- Prior art keywords
- jig
- welding seam
- sealing ring
- wheel assembly
- sun wheel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2884—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for welds
Abstract
The invention discloses a jig for testing the sealing of a welding line of a sun wheel assembly, which comprises a jig structure, a press-fitting mechanism which is adjusted by a telescopic cylinder arranged on a frame body and presses the welding line to be detected on the jig structure, and an air source and an air pressure detection mechanism which provide welding line detection for the jig structure. Through forming airtight space between the top cap and the lateral wall at the product in this application, exert air pressure to the product under test, carry out the leakproofness test to the welding seam. The invention is not limited by the position of the welding seam any more, and the product universality is strong; the O-shaped sealing ring on the top surface is extruded to form a sealing cavity, and then inflation pressure measurement is carried out for detection, wherein the sealing cavity for detection is formed by applying downward pressure to a detected product, so that the detection accuracy of the welding seam is improved; the press fitting and sealing are carried out through the telescopic mechanism and the press fitting mechanism, and the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of jig detection, in particular to a jig for testing the sealing of a welding line of a sun wheel assembly.
Background
Welding technology is a primary means of joining metal components and plays an important role in machine manufacturing. The welding defects can directly influence the quality of the workpiece, so that the detection of the quality of the part has important practical significance. Because the sealing test is used as an important detection mode, an important data basis can be provided for the welding quality test. The sun wheel assembly is formed by welding a clutch gear hub, a gear hub seat and a sun wheel shaft. Because the welding seam of the clutch gear hub and the gear hub seat of some product models is very close to the outer edge of the gear hub, the original end face double-rubber-ring sealing structure cannot meet the testing requirement.
Disclosure of Invention
The invention aims to provide a jig for testing the sealing of a welding seam of a sun gear assembly, which solves the problem of how to accurately and conveniently detect the welding seam between a clutch gear hub and a gear hub seat.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a jig for testing the sealing of a welding line of a sun wheel assembly, which comprises a jig structure, a press-fitting mechanism which is adjusted by a telescopic cylinder arranged on a frame body and presses the welding line to be detected on the jig structure, and an air source and an air pressure detection mechanism which are used for providing welding line detection for the jig structure.
Furthermore, an expansion cylinder is installed in the middle of the frame body, and guide seats are installed on the frame body and located on two sides of the expansion cylinder.
Still further, the telescopic cylinder is a telescopic cylinder with adjustable pressure.
Still further, be provided with the guide bar in the guide holder respectively, the lower extreme fixed connection of two the guide bar is on the pressure equipment mechanism.
Still further, the tool structure includes the tool main part, install top surface O shape sealing washer and side O shape sealing washer at tool main part top, compress tightly the clamping ring in side O shape sealing washer top, set up at tool main part top and be used for blockking clamping ring level and vertical movement's dog and offer in the tool main part be used for providing sealed intake pipe for the welding seam.
Still further, the dog passes through set screw and bullet pad and installs on the tool main part.
Still further, the top and the lateral wall of the jig main body are respectively provided with a sealing ring groove for installing the top surface O-shaped sealing ring and the side surface O-shaped sealing ring.
Still further, a local sealing cavity is formed among the jig main body, the O-shaped sealing ring on the top surface of the product to be tested and the O-shaped sealing ring on the side surface.
Still further, the upper port of the sealed air inlet pipe is communicated with the local sealed cavity, and the air inlet of the sealed air inlet pipe is communicated with the air source and the air pressure detection mechanism.
Compared with the prior art, the invention has the beneficial technical effects that: through forming airtight space between the top cap and the lateral wall at the product in this application, exert air pressure to the product under test, carry out the leakproofness test to the welding seam. The invention is not limited by the position of the welding seam any more, and the product universality is strong; the O-shaped sealing ring on the side surface is deformed by extruding the O-shaped sealing ring on the top surface and the compression ring to form a sealing cavity, and then the air inflation pressure measurement is carried out for detection, wherein the sealing cavity for detection is formed by applying downward pressure to a detected product, so that the detection accuracy of a welding seam is improved; the press fitting and sealing are carried out through the telescopic mechanism and the press fitting mechanism, and the detection efficiency is improved.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic view of a fixture mounting body for a welding seam sealing test of a sun gear assembly according to the present invention;
FIG. 2 is a schematic view of a jig structure for a weld sealing test of a sun gear assembly according to the present invention;
FIG. 3 is a partial view of the fixture structure of the fixture for testing the sealing of the welding seam of the sun gear assembly according to the present invention;
FIG. 4 is a schematic view of a sun gear assembly of the jig for testing the sealing of the weld joint of the sun gear assembly according to the present invention;
fig. 5 is a partial schematic view of a sun gear assembly of the jig for testing the sealing of the welding seam of the sun gear assembly according to the present invention.
Description of reference numerals: 1. a frame body; 2. a telescopic cylinder; 3. a guide seat; 3-1, a guide rod; 4. a press-fitting mechanism; 5. a jig structure; 5-1, a jig main body; 5-2, a stop block; 5-3, pressing a ring; 5-4, a top surface O-shaped sealing ring; 5-5, a side O-shaped sealing ring; 5-6, sealing the air inlet pipe; 5-7, fixing screws; 5-8, elastic cushion; 6. a sun gear shaft; 7. a hub seat; 8. a clutch hub; 9. and (7) welding seams.
Detailed Description
Examples
As shown in fig. 1-3, the present embodiment discloses a jig for a welding seam sealing test of a sun gear assembly, which includes a jig structure 5, a press-fitting mechanism 4 that is adjusted by a telescopic cylinder 2 installed on a frame body 1 and presses a welding seam to be detected on the jig structure 5, and an air source and an air pressure detection mechanism that provide welding seam detection for the jig structure 5. Wherein the air supply is carried through the air pump, and atmospheric pressure detection mechanism is the pressure gauge, support body 1's intermediate position installation telescoping cylinder 2 on the support body 1 and be located guide holder 3 is installed to the both sides of telescoping cylinder 2.
In this embodiment, the sun gear assembly is formed by welding a clutch gear hub, a gear hub seat and a sun gear shaft. Because the welding seam of the clutch gear hub and the gear hub seat of some product models is very close to the outer edge of the gear hub, the original end face double-rubber-ring sealing structure cannot meet the testing requirement. The product is used for detecting whether the quality of a welding seam between the clutch gear hub and the gear hub seat is good or not; the telescopic cylinder 2 is a servo telescopic cylinder, and the invention can also be used for press-mounting a product to be detected by a hydraulic oil cylinder. The guide seat 3 is internally provided with guide rods 3-1 respectively, the lower ends of the two guide rods 3-1 are fixedly connected with the press-mounting mechanism 4, the press-mounting mechanism 4 is of a cylindrical wall type structure, and the press-mounting mechanism 4 and a pressing contact surface of a product to be detected avoid a welding line, so that the effectiveness of welding line detection is ensured. The jig structure 5 comprises a jig main body 5-1, a top surface O-shaped sealing ring 5-4 and a side surface O-shaped sealing ring 5-5 which are arranged at the top of the jig main body 5-1, a pressing ring 5-3 which is tightly pressed above the side surface O-shaped sealing ring 5-5, a stop block 5-2 which is arranged at the top of the jig main body 5-1 and used for stopping the horizontal and vertical movement of the pressing ring 5-3, and a sealing air inlet pipe 5-6 which is arranged in the jig main body 5-1 and used for providing a welding line. A sun wheel shaft 6, a gear hub seat 7 and a clutch gear hub 8 adaptive shell structure are prefabricated in the jig structure 5; the stop block 5-2 is arranged on the jig main body 5-1 through a fixing screw 5-7 and an elastic pad 5-8, wherein the elastic pad 5-8 is arranged at the bottom of the stop block 5-2 and is arranged at the upper part of the jig main body 5-1 through the fixing screw 5-7. The top and the side wall of the jig main body 5-1 are respectively provided with a sealing ring groove for installing the top surface O-shaped sealing ring 5-4 and the side surface O-shaped sealing ring 5-5, so that the jig structure 5 and the welding seam position of a detected product are effectively sealed; a local sealing cavity is formed among the jig main body 5-1, the top surface of the product to be lateral, the O-shaped sealing ring 5-4 and the O-shaped sealing ring 5-5 on the side surface; the upper ports of the sealed air inlet pipes 5-6 are communicated with the local sealed cavity, and the air inlets of the sealed air inlet pipes are communicated with an air source and an air pressure detection mechanism, so that the weld joint detection is realized.
The use method and the working principle of the invention are as follows:
firstly, placing a product to be tested in a jig structure 5, and pressing a pressing mechanism 4 on the product to be tested by using a telescopic cylinder 2, wherein a gear hub seat 7 presses an O-shaped sealing ring on the top surface, and a pressing ring 5-3 is subjected to the action of axial external force to further press a side O-shaped sealing ring 5-5, so that the side O-shaped sealing ring 5-5 deforms and presses the side wall of the product to be tested, and a local closed cavity is formed at the position of a welding line between the gear hub seat 7 and a clutch gear hub 8; and then blowing air into a closed cavity formed by the jig main body 5-1 and the tested product through a sealed air inlet pipe 5-6, and testing whether the product leaks or not through testing a pressure change value after 10 seconds.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (9)
1. The utility model provides a tool of sun gear assembly welding seam sealing test which characterized in that: the welding seam detection device comprises a jig structure (5), a press-fitting mechanism (4) arranged on the jig structure (5) and an air source and air pressure detection mechanism for providing welding seam detection for the jig structure (5), wherein the telescopic cylinder (2) arranged on a frame body (1) is used for adjusting and pressing a product to be detected on a welding seam.
2. The jig for the welding seam sealing test of the sun wheel assembly according to claim 1, characterized in that: the telescopic cylinder (2) is installed in the middle of the frame body (1), and the guide seats (3) are installed on the frame body (1) and located on two sides of the telescopic cylinder (2).
3. The jig for testing the seal of the welding seam of the sun wheel assembly according to claim 2, characterized in that: the telescopic cylinder (2) is a telescopic cylinder with adjustable pressure.
4. The jig for testing the seal of the welding seam of the sun wheel assembly according to claim 2, characterized in that: guide rods (3-1) are respectively arranged in the guide seats (3), and the lower ends of the two guide rods (3-1) are fixedly connected to the press-fitting mechanism (4).
5. The jig for the welding seam sealing test of the sun wheel assembly according to claim 1, characterized in that: the jig structure (5) comprises a jig main body (5-1), a top surface O-shaped sealing ring (5-4) and a side surface O-shaped sealing ring (5-5) which are arranged at the top of the jig main body (5-1), a pressing ring (5-3) which is tightly pressed above the side surface O-shaped sealing ring (5-5), a stop block (5-2) which is arranged at the top of the jig main body (5-1) and used for stopping the horizontal and vertical movement of the pressing ring (5-3), and a sealing air inlet pipe (5-6) which is arranged in the jig main body (5-1) and used for providing a welding seam.
6. The jig for testing the seal of the welding seam of the sun wheel assembly according to claim 5, characterized in that: the stop block (5-2) is installed on the jig main body (5-1) through a fixing screw (5-7) and an elastic pad (5-8).
7. The jig for testing the seal of the welding seam of the sun wheel assembly according to claim 5, characterized in that: and sealing ring grooves for mounting the top surface O-shaped sealing ring (5-4) and the side surface O-shaped sealing ring (5-5) are respectively formed in the top and the side wall of the jig main body (5-1).
8. The jig for testing the seal of the welding seam of the sun wheel assembly according to claim 5, characterized in that: and a local sealing cavity is formed among the jig main body (5-1), the O-shaped sealing ring (5-4) on the top surface of the product to be tested and the O-shaped sealing ring (5-5) on the side surface.
9. The jig for testing the seal of the welding seam of the sun wheel assembly according to claim 5, characterized in that: the upper ports of the sealed air inlet pipes (5-6) are communicated with the local sealed cavity, and the air inlets of the sealed air inlet pipes are communicated with an air source and an air pressure detection mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293922.5A CN110849558A (en) | 2019-12-16 | 2019-12-16 | Tool of sun gear assembly welding seam sealing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911293922.5A CN110849558A (en) | 2019-12-16 | 2019-12-16 | Tool of sun gear assembly welding seam sealing test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110849558A true CN110849558A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911293922.5A Pending CN110849558A (en) | 2019-12-16 | 2019-12-16 | Tool of sun gear assembly welding seam sealing test |
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| Country | Link |
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| CN (1) | CN110849558A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953798A (en) * | 2021-10-26 | 2022-01-21 | 珠海华粤传动科技有限公司 | Application method of integrated tool for press fitting and detection of clutch piston |
| CN114279643A (en) * | 2021-12-27 | 2022-04-05 | 中船澄西扬州船舶有限公司 | Circular tube flange fillet weld tightness detection device |
-
2019
- 2019-12-16 CN CN201911293922.5A patent/CN110849558A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953798A (en) * | 2021-10-26 | 2022-01-21 | 珠海华粤传动科技有限公司 | Application method of integrated tool for press fitting and detection of clutch piston |
| CN114279643A (en) * | 2021-12-27 | 2022-04-05 | 中船澄西扬州船舶有限公司 | Circular tube flange fillet weld tightness detection device |
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