A device for vacuuming, filling with helium and sealing a cavity product of an inertial sensor

Abstract

The application provides a device for vacuumizing, filling helium and sealing inertial sensor cavity products, comprising a sealed barrel, a transmission mechanism, a tray and an electric iron assembly. The tray carries multiple products and is installed in the sealed barrel coaxially through the transmission mechanism, which can rotate the tray and the carried products around the axis of the tray. The sealed barrel is openable and closable and is provided with a vacuumizing port and a helium filling port for vacuumizing and helium filling respectively. The electric iron assembly is connected to the sealed barrel parallel to the axis of the sealed barrel and can move axially relative to the sealed barrel, and the iron head in the electric iron assembly is located in the sealed barrel to seal the products. The application can complete the vacuumizing, helium filling and sealing of the products through one installation of multiple products on a single device, can simultaneously vacuumize, fill helium and seal multiple products, is simple to operate, can improve the quality of the products and improve the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of inertial sensor assembly, and particularly relates to a device for vacuumizing, helium filling and sealing of a cavity product of an inertial sensor. BACKGROUND

[0002] A certain type of inertial sensor cavity product needs to ensure that the internal gas is stable and low pressure during work to improve product accuracy. During the assembly of these inertial sensors, the product needs to be vacuumized, helium filled, and then sealed to ensure stability and reliability of the product.

[0003] Currently, different devices are used to support and fix the product and perform vacuumizing, helium filling and sealing operations. The operation is complex, the quality control is difficult, and only a single product can be vacuumized, helium filled and sealed at a time. SUMMARY

[0004] The present application aims to solve the problems of using different devices for vacuumizing, helium filling and sealing of the cavity product of the inertial sensor and only operating a single product in the prior art, and provides a device for vacuumizing, helium filling and sealing of the cavity product of the inertial sensor. The device can complete the vacuumizing, helium filling and sealing operations through the installation of multiple products at a time on the single device, and can simultaneously vacuumize, helium fill and seal multiple products. The operation is simple, the product quality is improved, and the production efficiency is improved.

[0005] To achieve the above-mentioned purpose, the technical solution provided by the present application is as follows:

[0006] A device for vacuumizing, helium filling and sealing of a cavity product of an inertial sensor, comprising a sealing barrel, a transmission mechanism, a tray and an electric iron assembly;

[0007] The tray is used to carry multiple sensor products to be vacuumized, helium filled and sealed, and is installed in the sealing barrel by the transmission mechanism and is coaxial with the sealing barrel. The transmission mechanism can rotate the tray and the carried products around the axis of the tray;

[0008] The sealing barrel is openable and closable, and is provided with a vacuumizing port and a helium filling port for vacuumizing and helium filling, respectively;

[0009] The electric iron assembly is connected to the sealing barrel in parallel with the axis of the sealing barrel and can move axially relative to the sealing barrel. The iron head in the electric iron assembly is located in the sealing barrel to seal the product.

[0010] Further, the tray is replaceable to carry different specifications of products.

[0011] Further, the sealed barrel comprises a barrel body and a barrel cover for closing the barrel body, the barrel cover is hinged to the barrel body to be opened and closed relative to the barrel body.

[0012] Further, the barrel body comprises a bottom plate, a barrel body and a cover plate, a sealing ring is arranged at the contact surface of the bottom plate, the barrel body and the cover plate, the vacuum extraction port, the helium filling port and the transmission mechanism are arranged on the bottom plate, and the electric soldering iron assembly is arranged on the barrel cover.

[0013] Further, the device further comprises a hinge assembly for hinging the barrel cover to the barrel body, the hinge assembly comprises a first hinge seat arranged on the barrel body, a second hinge seat arranged on the barrel cover, and a rotating shaft penetrating through the first hinge seat and the second hinge seat.

[0014] Further, a handle is arranged on the barrel cover for opening and closing the sealed barrel.

[0015] Further, the transmission mechanism comprises a hand wheel, an input shaft, a support assembly and an output shaft, the hand wheel, the input shaft and the support assembly are located outside the sealed barrel; the hand wheel is sleeved on the input shaft for driving the input shaft to rotate; the support assembly is fixed to the sealed barrel and rotatably supports the input shaft; the input shaft and the output shaft are connected through bevel gears arranged thereon for power transmission; the output shaft is coaxially connected to the sealed barrel in a rotatable manner and extends into the sealed barrel and is connected with the tray.

[0016] Further, the input shaft comprises a first shaft and a second shaft connected through a shaft coupling, the hand wheel is sleeved on the first shaft, and the second shaft is connected with the output shaft for power transmission; the first shaft is rotatably supported through a fixing seat.

[0017] Further, the electric soldering iron assembly further comprises an electrode rod and a compression spring; the electrode rod is sealingly connected to the sealed barrel through a mounting plate, penetrates through the sealed barrel and is connected with a soldering iron head, and can move axially between a working position and a non-working position, in the working position, the soldering iron head is close to the tray and the product to seal the product, in the non-working position, the soldering iron head is away from the tray and the product; the compression spring is sleeved on the electrode rod and abuts on the mounting plate and the electrode rod at two ends respectively, for automatically returning the electrode rod from the working position to the non-working position.

[0018] The advantages of the present application are:

[0019] 1. The device for vacuumizing, helium filling and sealing of inertial sensor cavity products of the present application comprises a sealed barrel provided with a vacuumizing port and a helium filling port and a tray carrying a plurality of sensor products in the barrel, in use, after the air in the sealed barrel is vacuumized and helium is filled into the barrel through the vacuumizing port and the helium filling port respectively, a transmission mechanism can drive the tray to rotate so that different products on the tray reach the working position, thereby the sealing of the plurality of products is sequentially completed by using an electric iron assembly. Therefore, the present application enables the vacuumizing, helium filling and sealing of products to be completed by one-time installation of a plurality of products on a single device, and a plurality of products can be simultaneously vacuumized, helium filled and sealed, which is not only simple in operation, but also can improve product quality and production efficiency.

[0020] 2. In the device of the present application, the tray is replaceable, when the product model is changed, only the corresponding tray needs to be replaced, thereby the vacuumizing, helium filling and sealing of different products can be completed, which is simple and convenient in operation and has strong applicability. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or other features and advantages of the present application will become more apparent by describing in following reference to the accompanying drawings, which are not drawn to scale and in which some features can be exaggerated or minimized for the sake of simplifying particular regions of the drawings, wherein:

[0022] Figure 1 is a cross-sectional view of the device for vacuumizing, helium filling and sealing of inertial sensor cavity products of the present application;

[0023] Figure 2 is a perspective view of the device of the present application Figure 1 , showing the top of the device;

[0024] Figure 3 is a perspective view of the device of the present application Figure 2 , showing the bottom of the device;

[0025] Figure 4 is a perspective view of the tray in the device of the present application.

[0026] In the drawings: 1 - sealed barrel, 11 - barrel body, 111 - bottom plate, 112 - barrel body, 113 - cover plate, 114 - vacuumizing port, 115 - helium filling port, 12 - barrel cover, 13 - handle, 14 - support column; 2 - transmission mechanism, 21 - hand wheel, 22 - input shaft, 221 - first shaft, 222 - second shaft, 223 - coupling, 224 - fixing seat, 23 - support assembly, 24 - output shaft; 3 - tray, 31 - product mounting hole; 41 - iron head, 42 - electrode rod, 43 - compression spring, 44 - mounting plate, 45 - sealing plate; 5 - hinged assembly, 51 - first hinged seat, 52 - second hinged seat, 53 - rotating shaft, 54 - side plate; 100 - sensor product. DETAILED DESCRIPTION

[0027] The present application will be described in detail below with reference to the accompanying drawings, which illustrate exemplary embodiments of the present application. It should be noted that the detailed description of the present application below is merely for the purpose of illustration, and is not intended to limit the present application.

[0028] The present application provides a device for vacuumizing, helium-filling and sealing of inertial sensor cavity products, which can complete the vacuumizing, helium-filling and sealing operations of the products at one time after the products are installed on the device, and can simultaneously vacuumize, helium-fill and seal multiple products, thereby improving the product quality and production efficiency.

[0029] Referring to Figure 1 , Figure 2 and Figure 3 , the device for vacuumizing, helium-filling and sealing of inertial sensor cavity products according to exemplary embodiments of the present application can include a sealed barrel 1, a transmission mechanism 2, a tray 3 and an electric iron assembly. The tray 3 is used to carry multiple sensor products 100 of the same specification to be vacuumized, helium-filled and sealed, the sealed barrel 1 can sealingly accommodate the tray 3 and the products carried thereby inside, the tray 3 is replaceable to carry products of different specifications, and the sealed barrel 1 further provides an interface for vacuumizing, helium-filling and sealing, the transmission mechanism 2 is used to realize rotation of the tray 3 and the products, and the electric iron assembly is used to extend into the sealed barrel 1 to seal the products.

[0030] The sealed barrel 1 is openable and closable to place and take out the tray 3 and the sensor products, and to replace the tray 3 and the products. In some embodiments of the present application, the sealed barrel 1 includes a barrel body 11 and a barrel cover 12 used to close the barrel body 11, the barrel cover 12 is hinged to the barrel body 11 to be openable and closable relative to the barrel body 11. In particular, the barrel body 11 further includes a bottom plate 111, a barrel body 112 and a cover plate 113, the bottom plate 111 and the cover plate 113 cover two ends of the barrel body 112 respectively, a sealing ring is arranged at the contact surface of the bottom plate 111, the barrel body 112 and the cover plate 113, a vacuumizing port 114 and a helium-filling port 115 (shown in Figure 3 ) used as vacuumizing and helium-filling interfaces respectively can be arranged on the bottom plate 111 to perform vacuumizing and helium-filling operations respectively, the transmission mechanism 2 can also be arranged on the bottom plate 111, and the electric iron assembly can be arranged on the barrel cover 12. A plurality of supports 14 can be arranged on the bottom surface of the bottom plate 111 to support the sealed barrel 1. In addition, a handle 13 is arranged on the barrel cover 12 to facilitate operation of the barrel cover 12, and is used to open and close the sealed barrel 1.

[0031] To facilitate the opening and closing of the barrel cover 12 relative to the barrel body 11, the device of the present application can further comprise a hinge assembly 5 for hingedly connecting the barrel cover 12 to the barrel body 11, the hinge assembly 5 comprising a first hinge seat 51 arranged on the barrel body 11, a second hinge seat 52 arranged on the barrel cover 12, and a rotating shaft 53 passing through the first and second hinge seats 51 and 52. To facilitate the installation of the hinge assembly 5, the first hinge seat 51 can be connected to the bottom plate 111 of the barrel body 11 through a side plate 54, which is fixed to the bottom plate 111 by screws.

[0032] With reference to Figure 1 and Figure 3 , the tray 3 is detachably mounted in the sealed barrel 1, particularly on the bottom plate 111, and is coaxially mounted with the sealed barrel 1, and the transmission mechanism 2 can rotate the tray 3 and the sensor products 100 carried thereby about the axis of the tray 3. In a specific embodiment, the transmission mechanism 2 comprises a hand wheel 21, an input shaft 22, a bracket assembly 23 and an output shaft 24, the hand wheel 21, the input shaft 22 and the bracket assembly 23 being located outside the sealed barrel 1. The hand wheel 21 is sleeved on the input shaft 22 for driving the input shaft 22 to rotate. The bracket assembly 23 is fixed to the sealed barrel 1 and rotatably supports the input shaft 22, and the bracket assembly 23 can comprise two L-shaped brackets symmetrically located on both sides of the output shaft 24, and bearings are arranged between the brackets and the input shaft 22 to realize the relative movement therebetween. The axis of the input shaft 22 is perpendicular to the axis of the sealed barrel 1. The input shaft 22 and the output shaft 24 are power-transmitted through the bevel gears arranged thereon, and the bevel gear transmission is only a way to change the rotation direction, and similar structures such as worm gear transmission mechanism can be used for changing the rotation direction. The output shaft 24 is coaxially and rotatably connected to the sealed barrel 1 and extends into the sealed barrel 1 to be connected to the tray 3. In this way, when the hand wheel 21 is manually rotated, the input shaft 22 drives the output shaft 24 to rotate, thereby rotating the tray 3 and the products carried thereby, so that the products reach different positions, and the electric iron assembly can be aligned with the products in sequence, and then seal the products in sequence.

[0033] To avoid interference with the operation of the hand wheel 21, the input shaft 22 is arranged to be longer and protrude out of the sealed barrel 1, and considering the machining cost and machining convenience of the shaft, the input shaft 22 can comprise a first shaft 221 and a second shaft 222 connected through a shaft coupling 223, the hand wheel 21 is sleeved on the first shaft 221, and the second shaft 222 cooperates with the output shaft 24 for power transmission. In addition, to improve the support strength of the input shaft 22, the first shaft 221 can be rotatably supported by a fixing seat 224.

[0034] With reference to Figure 4, the structure of the tray 3 is shown. The tray 3 is disc-shaped, and a plurality of product mounting holes 31 for mounting the sensor product 100 are uniformly distributed at the outer periphery, which can be stepped holes, specifically, the surface facing the iron head 41 is a square hole, and the surface away from the iron head 41 is a round hole. As mentioned earlier, the tray 3 is replaceable, and a plurality of trays 3 are provided, the sizes of the product mounting holes 31 on different trays are different, different mounting holes can be designed according to different product sizes to place different products, when the product model changes, only the corresponding tray with appropriate mounting hole size needs to be replaced, and the vacuumizing, helium filling and sealing operations of different products can be completed, which is simple, convenient and suitable.

[0035] Referring back to Figure 1 and Figure 2 , the electric iron assembly is connected to the sealing barrel 1 in parallel with the axis of the sealing barrel 1, and is connected at a position that can be aligned with the product on the tray 3, the electric iron assembly can move axially relative to the sealing barrel 1, and the iron head 41 in the electric iron assembly is located in the sealing barrel 1 to seal the product.

[0036] In an optional embodiment of the present application, the electric iron assembly further comprises an electrode rod 42 and a compression spring 43. The electrode rod 42 is sealingly connected to the sealing barrel 1 through a mounting plate 44 and is connected to the iron head 41 through the sealing barrel 1. The mounting plate 44 is sealingly mounted on the barrel cover 12 of the sealing barrel 1, and for the convenience of connecting the electric iron assembly to the sealing barrel 1, a sealing plate 45 can be provided on the barrel cover 12 of the sealing barrel 1, which is provided with a sealing ring between the barrel cover 12, and the mounting plate 44 and the electric iron assembly can be assembled together and then mounted on the sealing plate 45 as a whole. The electrode rod 42 can move axially between a working position and a non-working position, in the working position, the iron head 41 is close to the tray 3 and the product to seal the product, for example, using the electric iron to melt the solder around the product inflation port, in the non-working position, the iron head 41 is away from the tray 3 and the product. The compression spring 43 is sleeved on the electrode rod 42, and the two ends abut against the mounting plate 44 and the electrode rod 42 respectively, for keeping the electrode rod and the electric iron in the non-working position, and making the electrode rod 42 automatically return to the non-working position from the working position.

[0037] With the device structure described above, in use, first, according to the needs, a plurality of sensor cavity products of the same model are selected and fixed on the transmission mechanism in the sealed barrel, then the products are placed on the tray, the barrel cover is covered, and then the air in the sealed barrel can be respectively pumped through the vacuum pumping port and the helium flushing port, and the barrel is filled with helium, after reaching the specified requirements, the vacuum pumping port and the helium filling port are closed, thereby completing the vacuum pumping and helium flushing operation of multiple products at one time. Then the tray can be rotated by the transmission mechanism to make different products on the tray reach the working position respectively, so that the sealing of multiple products on the tray is completed in turn by the electric iron assembly. Therefore, the present application can complete the vacuum pumping, helium filling and sealing operation of the products at one time on a single device through multiple products, and multiple products can be simultaneously subjected to vacuum pumping, helium filling and sealing operation, which not only simplifies the operation, but also improves the product quality and production efficiency.

[0038] Finally, it should be noted that the features mentioned and / or shown in the above description of exemplary embodiments of the present application can be combined in the same or similar manner with one or more other embodiments, combined with or replace corresponding features in other embodiments. The technical solutions obtained by combining or replacing should also be considered to be included in the protection scope of the present application.

Claims

1. An apparatus for evacuating, filling with helium, and sealing an inertial sensor cavity product, characterized by: The sealing barrel, the transmission mechanism, the tray and the electric iron assembly are included. The tray is used for carrying a plurality of sensor products to be vacuumized, filled with helium and sealed, and is replaceable to carry products of different specifications; the tray is installed in the sealing barrel coaxially through the transmission mechanism, and the transmission mechanism can rotate the tray and the carried products around the axis of the tray. The transmission mechanism includes a hand wheel, an input shaft, a bracket assembly and an output shaft; the input shaft includes a first shaft and a second shaft connected through a shaft coupling, the hand wheel is sleeved on the first shaft to drive the input shaft to rotate, and the second shaft cooperates with the output shaft to transmit power; the bracket assembly is used for rotatably supporting the input shaft; and the output shaft is connected with the tray. The sealing barrel is openable and closable, and is provided with a vacuumizing port and a helium filling port to respectively perform vacuumizing and helium filling operations. The electric iron assembly is connected to the sealing barrel in parallel with the axis of the sealing barrel and can move axially relative to the sealing barrel, the iron head in the electric iron assembly is located in the sealing barrel to seal the products; the electric iron assembly further includes an electrode rod and a compression spring; the electrode rod is sealingly connected to the sealing barrel through a mounting plate, penetrates through the sealing barrel to be connected with the iron head, and can move axially between a working position and a non-working position; in the working position, the iron head is close to the tray and the products to seal the products; in the non-working position, the iron head is away from the tray and the products; the compression spring is sleeved on the electrode rod and abuts against the mounting plate and the electrode rod at two ends respectively to automatically return the electrode rod from the working position to the non-working position.

2. The apparatus for vacuuming, helium filling and sealing of inertial sensor cavity products according to claim 1, characterized in that: The sealing barrel includes a barrel body and a barrel cover used for closing the barrel body, the barrel cover is hinged to the barrel body to be openable and closable relative to the barrel body.

3. The apparatus for vacuuming, helium filling and sealing of inertial sensor cavity products according to claim 2, characterized in that: The barrel body includes a bottom plate, a barrel body and a cover plate, a sealing ring is arranged at the contact surface of the bottom plate, the barrel body and the cover plate, the vacuumizing port, the helium filling port and the transmission mechanism are arranged on the bottom plate, and the electric iron assembly is arranged on the barrel cover.

4. The apparatus for vacuuming, helium filling and sealing of inertial sensor cavity products of claim 2, wherein: A hinging assembly for hinging the barrel cover to the barrel body is further included, the hinging assembly includes a first hinging seat arranged on the barrel body, a second hinging seat arranged on the barrel cover and a rotating shaft penetrating through the first hinging seat and the second hinging seat.

5. The apparatus for vacuuming, helium filling and sealing of inertial sensor cavities product according to claim 2, characterized in that: A handle is arranged on the barrel cover to open and close the sealing barrel.

6. The apparatus for vacuuming, helium filling and sealing of inertial sensor cavity products according to claim 1 or 2, characterized in that: The hand wheel, the input shaft and the bracket assembly are located outside the sealing barrel; The bracket assembly is fixed to the sealing barrel; The input shaft and the output shaft transmit power through bevel gears arranged thereon respectively; The output shaft is coaxially connected to the sealing barrel in a rotatable manner and extends into the sealing barrel to be connected with the tray.

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