Electric gear shifting product sealing tool

Abstract

The utility model discloses an electric gear shifting product sealing tool which comprises an inflatable base and a sealing seat, the inflatable base is located below the sealing seat, the inflatable base is provided with an air-tightness test inflation hole and a sealing ring inflation hole, the top of the sealing seat is provided with a product mounting surface, the sealing seat is provided with a product accommodating cavity and a sealing ring accommodating cavity, the upper end of the product accommodating cavity penetrates through the product mounting surface to form a product insertion opening, a sealing ring is installed in the sealing ring accommodating cavity, the sealing ring is used to make the open end of the electric gear shifting product and the product accommodating cavity below the sealing ring in sealed communication after inflation, the product accommodating cavity is connected with the air-tightness test inflation hole through a hose, and the sealing ring accommodating cavity is connected with the sealing ring inflation hole through a hose. The sealing tool can be used in cooperation with an air-tightness tester to perform air-tightness detection on the electric gear shifting product, the detection precision is high, and damage to the product caused by the water immersion method can be completely avoided.

Description

Technical Field

[0001] This utility model relates to the field of sealing test technology, specifically to a sealing fixture for an electric gear shifting product. Background Technology

[0002] With the accelerating pace of automotive electrification and intelligentization, the application of electric gear shifting products is becoming increasingly widespread. In actual operation, electric gear shifting products face complex and harsh working environments, from the severe vibrations and bumps of vehicle operation to extreme temperature variations in different regions, and harsh climatic conditions such as high humidity and dust. These factors pose extremely serious challenges to the sealing performance of electric gear shifting products. Once the seal fails, external dust, moisture, and other impurities can easily penetrate and corrode the precision electronic components and mechanical structures inside the product. This can not only lead to short circuits and corrosion of electronic components, causing abnormal shift signal transmission and resulting in serious malfunctions such as shift jerking and failure, affecting driving safety and comfort, but also accelerate the wear of mechanical parts and reduce the product's lifespan. Therefore, conducting systematic sealing tests is a crucial step in ensuring the reliability and durability of electric gear shifting products.

[0003] The traditional testing method is the immersion method, which involves submerging the electric gear shifter in a water tank and observing the bubbles to determine its sealing condition. This method has the following drawbacks:

[0004] 1. Inefficient: It requires manual operation and is time-consuming, which cannot meet the needs of large-scale mass production;

[0005] 2. Damage risk: Water may seep into the product, causing short circuits in electronic components or corrosion of mechanical parts, especially posing a greater risk to highly integrated electric gear shifters;

[0006] 3. Insufficient precision: Tiny leaks (such as at the gas molecule level) are difficult to detect with the naked eye, and bubbles may be missed because they dissolve in water.

[0007] Therefore, developing a sealing fixture that allows electric gear shifting products to undergo airtightness testing using an airtightness tester is of great significance in this field. Utility Model Content

[0008] To solve the above problems, this utility model provides a sealing fixture for electric gear shifting products.

[0009] The technical solution adopted in this utility model is:

[0010] A sealing fixture for an electric gear shifter includes an inflatable base and a sealing seat. The inflatable base is located below the sealing seat and has an airtightness test inflation port and a sealing ring inflation port. The top of the sealing seat has a product mounting surface, and the sealing seat has a product receiving cavity and a sealing ring receiving cavity. The upper end of the product receiving cavity penetrates the product mounting surface to form a product insertion port. A sealing ring is installed in the sealing ring receiving cavity, and the sealing ring air inlet is connected to the sealing ring receiving cavity. The sealing ring is used to seal the opening end of the electric gear shifter with the product receiving cavity below the sealing ring after inflation. The product receiving cavity has a first air inlet, which is connected to the airtightness test inflation port through a hose. The sealing ring receiving cavity has a second air inlet, which is connected to the sealing ring inflation port through a hose.

[0011] Furthermore, the airtightness test inflation port is connected to the airtightness tester via an air pipe connector and an air pipe.

[0012] Furthermore, the air inlet of the sealing ring is connected to the air source through an air pipe connector, an air pipe, and a solenoid valve.

[0013] Furthermore, the bottom of the inflatable base is provided with threaded mounting holes and locating pin holes, and the side is provided with fixing holes. The threaded mounting holes and fixing holes are used to fix the tooling to the test bench with bolts, and the locating pin holes are used for positioning when fixing the tooling.

[0014] Furthermore, the upper end of the sealing seat is provided with a circular boss, the top surface of which forms the product mounting surface. The product mounting surface is provided with cylindrical pins and diamond pins, which respectively cooperate with the positioning holes of the electric shift product to limit the movement and rotation of the electric shift product.

[0015] Furthermore, the product mounting surface is provided with clearance holes, which are used to avoid the pin sleeve of the electric shift product.

[0016] The beneficial effects of this utility model are:

[0017] 1. The structural design of the sealing fixture is suitable for airtightness testing of various electric shift products, and will not cause scratches, wear or other damage to the product surface, ensuring the appearance quality and performance stability of the product.

[0018] 2. The sealing fixture fixes and seals the product under test by inflating the sealing ring, which can reduce surface damage to the product during testing, improve the sealing performance between the product and the sealing fixture during testing, and improve testing accuracy.

[0019] 3. The sealing fixture can be used with an airtightness tester for airtightness testing. The test accuracy is high, and the damage to the product caused by water immersion can be completely avoided. Attached Figure Description

[0020] Figure 1 Three-dimensional structure for sealing tooling Figure 1 .

[0021] Figure 2 Three-dimensional structure for sealing tooling Figure 2 .

[0022] Figure 3 This is a cross-sectional view of the sealing fixture. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.

[0024] See Figures 1-3 A sealing fixture for an electric gear shifting product includes an inflatable base 2 and a sealing seat 4. The inflatable base 2 is located below the sealing seat 4 and is detachably connected to the sealing seat 4 by bolts. The detachable connection between the inflatable base 2 and the sealing seat 4 by bolts facilitates quick disassembly, assembly, and replacement of the sealing ring.

[0025] The sealing seat 4 includes a cylindrical housing A, the bottom of which is closed by a base plate. The base plate is provided with a first air inlet pipe connector and a second air inlet pipe connector. The outer side wall at the upper end of the cylindrical housing A protrudes radially outward to form a circular boss. The top surface of the circular boss is set as the product mounting surface 43. The product mounting surface 43 is provided with a clearance hole 5, a cylindrical pin 7, and a diamond pin 8.

[0026] The cylindrical tooling, combined with cylindrical pin 7 and diamond pin 8, enables rapid center positioning of electric shift products, reducing manual adjustment time and improving mass production line testing efficiency.

[0027] The cylindrical housing A contains a product receiving cavity 41 and a sealing ring receiving cavity 42. The upper end of the product receiving cavity 41 extends through the sealing surface to form a product insertion port. The sealing ring receiving cavity 42 is located at the upper end of the product receiving cavity 41 and surrounds it, meaning it protrudes radially outward from the inner sidewall of the upper end of the product receiving cavity. An air intake channel 421 is provided within the sidewall of the cylindrical housing A. One end of the air intake channel 421 communicates with the sealing ring receiving cavity 42, and the other end communicates with the first air intake pipe connector. A sealing ring 44 is installed inside the sealing ring receiving cavity 42. An air inlet 441 is located at the bottom of the sealing ring 44 and is inserted into and communicates with the air intake channel 421, facilitating replacement of the sealing ring after wear.

[0028] The inflatable base 2 includes a cylindrical shell B with the same outer diameter as the cylindrical shell A. The bottom of the cylindrical shell B is closed by a base plate, which has four threaded mounting holes 10 and two positioning pin holes 11. The four threaded mounting holes 10 are evenly distributed at the four corners of the base plate, and the two positioning pin holes 11 are symmetrically distributed at the center of the base plate.

[0029] The top of the cylindrical shell B is open and connected to the first air inlet pipe connector and the second air inlet pipe connector. The side wall of the shell is provided with a fixing hole 3, an air tightness test inflation hole 1 and a sealing ring inflation hole 9. The sealing ring inflation hole 9 is connected to the first air inlet pipe connector through an air pipe and is sealed to the second air inlet pipe connector through an air pipe.

[0030] Both the inflatable base 2 and the sealing base 4 adopt a cylindrical structure to ensure that the center of gravity of the tooling is centered, reduce the problem of uneven force caused by eccentricity, and improve the test accuracy.

[0031] When using this utility model:

[0032] The air tightness test inflation port 1 is connected to the air tightness instrument through an air pipe and an air pipe connector, and the sealing ring inflation port 9 is connected to the air source through an air pipe, an air pipe connector, and a solenoid valve.

[0033] Insert the open end of the product to be tested into the product receiving cavity 42 through the product insertion port, so that the upper cover plate of the product to be tested contacts the product mounting surface 43. Inflate the sealing ring 44 through the sealing ring inflation hole 9 to seal the product. The product receiving cavity 4 below the sealing ring is sealed and connected to the inner cavity of the product to be tested.

[0034] Using an air tightness tester, the sealing fixture is inflated through the air tightness test inflation port 1. The test gas enters the inner cavity of the product under test through the product receiving cavity 4. The air tightness tester performs an air tightness test on the product under test.

[0035] After the test is completed, the sealing ring is vented by controlling the solenoid valve, and the product is removed.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications are also within the protection scope of the present utility model.

Claims

1. A sealing fixture for an electric gear shifting product, characterized in that, The device includes an inflatable base (2) and a sealing seat (4). The inflatable base (2) is located below the sealing seat (4). The inflatable base (2) is provided with an airtightness test inflation hole (1) and a sealing ring inflation hole (9). The top of the sealing seat (4) is provided with a product mounting surface. The sealing seat is provided with a product receiving cavity and a sealing ring receiving cavity. The upper end of the product receiving cavity passes through the product mounting surface to form a product insertion port. A sealing ring is installed in the sealing ring receiving cavity. The sealing ring air inlet is connected to the sealing ring receiving cavity. The sealing ring is used to seal and connect the opening end of the electric shift product with the product receiving cavity below the sealing ring after inflation. The product receiving cavity is provided with a first air inlet. The first air inlet is connected to the airtightness test inflation hole (1) through a hose. The sealing ring receiving cavity is provided with a second air inlet. The second air inlet is connected to the sealing ring inflation hole (9) through a hose.

2. The sealing fixture for an electric gear shifting product according to claim 1, characterized in that, The airtightness test inflation port (1) is connected to the airtightness tester through the air pipe connector and air pipe.

3. The sealing fixture for an electric gear shifting product according to claim 1, characterized in that, The air inlet (9) of the sealing ring is connected to the air source through the air pipe connector, air pipe and solenoid valve.

4. The sealing fixture for an electric gear shifting product according to claim 1, characterized in that, The bottom of the inflatable base (2) is provided with a threaded mounting hole (10) and a positioning pin hole (11), and the side is provided with a fixing hole (3). The threaded mounting hole (10) and the fixing hole (3) are used to fix the tooling on the test bench by bolts, and the positioning pin hole (11) is used for positioning when the tooling is fixed.

5. The sealing fixture for an electric gear shifting product according to claim 1, characterized in that, The upper end of the sealing seat (4) is provided with a circular boss. The top surface of the circular boss forms the product mounting surface. The product mounting surface is provided with a cylindrical pin (7) and a diamond pin (8). The cylindrical pin (7) and the diamond pin (8) respectively cooperate with the positioning hole of the electric shift product to limit the movement and rotation of the electric shift product.

6. The sealing fixture for an electric gear shifting product according to claim 1, characterized in that, The product mounting surface is provided with a clearance hole (5), which is used to avoid the pin sleeve of the electric shift product.

Images