Device for vacuumizing, helium filling and sealing of inertial sensor cavity product

Abstract

The invention provides a device for vacuumizing, helium filling and sealing of an inertial sensor cavity product. The device comprises a sealing barrel, a transmission mechanism, a tray and an electric soldering iron assembly. The tray bears a plurality of products and is installed in the sealing barrel through a transmission mechanism and installed to be coaxial with the sealing barrel, and the transmission mechanism can enable the tray and the borne products to rotate around the axis of the tray. The sealing barrel can be opened and closed and is provided with a vacuumizing opening and a helium filling opening so that vacuumizing operation and helium filling operation can be conducted respectively. The electric soldering iron assembly is connected to the sealing barrel in parallel with the axis of the sealing barrel and can axially move relative to the sealing barrel, and a soldering bit in the electric soldering iron assembly is located in the sealing barrel so as to seal a product. According to the device, vacuumizing, helium filling and sealing operation of the products can be completed on a single device through one-time installation of the multiple products, vacuumizing, helium filling and sealing operation can be conducted on the multiple products at the same time, operation is easy, the product quality can be improved, and the production efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of inertial sensor assembly, and in particular relates to a device for vacuuming, filling with helium and sealing a cavity product of an inertial sensor. Background Art

[0002] When a certain type of inertial sensor cavity product is working, the gas inside the product must be stable and the air pressure must be kept low to improve the product accuracy. During the assembly process of these inertial sensors, the product needs to be evacuated, filled with helium, and then sealed to ensure the product is stable and reliable.

[0003] Currently, different devices are used to support and fix the products and to perform vacuuming, helium filling and sealing operations. The operation is complicated, the quality control is difficult, and only one product can be vacuumed, filled with helium and sealed at a time. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the vacuuming, helium filling and sealing of the inertial sensor cavity product in the prior art require different devices and can only operate a single product, and provide a device for vacuuming, helium filling and sealing of the inertial sensor cavity product. The device enables the vacuuming, helium filling and sealing operations to be completed by installing multiple products at one time on the single device, and the vacuuming, helium filling and sealing operations can be performed on multiple products at the same time, which is not only simple to operate, but also can improve product quality and production efficiency.

[0005] To achieve the above purpose, the technical solution provided by the present invention is:

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

[0007] The tray is used to carry a plurality of sensor products to be evacuated, filled with helium and sealed, and is installed in the sealing barrel through a transmission mechanism and installed coaxially with the sealing barrel. The transmission mechanism can rotate the tray and the carried products around the axis of the tray;

[0008] The sealed barrel can be opened and closed, and is provided with a vacuum port and a helium filling port for performing vacuum and helium filling operations respectively;

[0009] The electric soldering 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 soldering iron head in the electric soldering iron assembly is located in the sealing barrel to seal the product.

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

[0011] Further, the sealed barrel comprises a barrel body and a barrel cover for closing the barrel body, wherein the barrel cover is hinged to the barrel body so as to be openable and closable relative to the barrel body.

[0012] Furthermore, the barrel body includes a bottom plate, a barrel body and a cover plate, and sealing rings are arranged at the contact surfaces of the bottom plate, the barrel body and the cover plate. The vacuum 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] Furthermore, the device also includes a hinge assembly for hingedly connecting the barrel cover to the barrel body, and the hinge assembly includes a first hinge seat arranged on the barrel body, a second hinge seat arranged on the barrel cover, and a rotating shaft passing through the first hinge seat and the second hinge seat.

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

[0015] Furthermore, the transmission mechanism includes a handwheel, an input shaft, a bracket assembly and an output shaft, and the handwheel, input shaft and bracket assembly are located outside the sealing barrel; the handwheel is sleeved on the input shaft to drive the input shaft to rotate; the bracket assembly is fixed to the sealing barrel and rotatably supports the input shaft; the input shaft and the output shaft transmit power through bevel gears respectively arranged thereon; the output shaft is coaxially connected to the sealing barrel in a rotatable manner, and extends into the sealing barrel to be connected to the tray.

[0016] Furthermore, the input shaft includes a first shaft and a second shaft connected by a coupling, the hand wheel is sleeved on the first shaft, and the second shaft cooperates with the output shaft to transmit power; the first shaft is rotatably supported by a fixed seat.

[0017] Furthermore, the electric soldering iron assembly also includes an electrode rod and a compression spring; the electrode rod is sealingly connected to the sealing barrel through a mounting plate, passes through the sealing barrel and is connected to the soldering iron tip, and is capable of axially moving between a working position and a non-working position. In the working position, the soldering iron tip is close to the tray and the product to seal the product, and in the non-working position, the soldering iron tip is away from the tray and the product; the compression spring is sleeved on the electrode rod, and its two ends are respectively abutted against the mounting plate and the electrode rod, so as to make the electrode rod automatically return from the working position to the non-working position.

[0018] The advantages of the present invention are:

[0019] 1. The device for vacuuming, filling with helium and sealing the cavity product of the inertial sensor of the present invention comprises a sealed barrel provided with a vacuuming port and a helium filling port and a tray carrying multiple sensor products in the barrel. In use, after the air in the sealed barrel is extracted through the vacuuming port and the helium filling port and the barrel is filled with helium, the transmission mechanism can drive the tray to rotate so that different products on the tray reach the working position, thereby using the electric soldering iron assembly to complete the sealing of multiple products in sequence. Therefore, the present invention enables the vacuuming, filling with helium and sealing operations of the products to be completed on a single device through the one-time installation of multiple products, and the vacuuming, filling with helium and sealing operations can be performed on multiple products at the same time, which is not only simple to operate, but also can improve product quality and production efficiency.

[0020] 2. In the device of the present invention, the tray is replaceable. When the product model changes, it is only necessary to replace the corresponding tray to complete the vacuuming, helium filling and sealing operations of different products. The operation is simple and convenient, and the applicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or other features and advantages of the present invention will become more easily understood through the following description with reference to the accompanying drawings, which are not drawn to scale and some features are exaggerated or reduced to show details of specific components. In the accompanying drawings:

[0022] Figure 1 is a cross-sectional view of a device for evacuating, filling with helium and sealing a cavity product of an inertial sensor according to the present invention;

[0023] Figure 2 The device of the present invention is a three-dimensional Figure 1 , showing the top of the device;

[0024] Figure 3 The device of the present invention is a three-dimensional Figure 2 , showing the bottom of the device;

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

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

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

[0028] The present invention provides a device for vacuuming, filling with helium and sealing a cavity product of an inertial sensor. After the product is installed on the device, the vacuuming, filling with helium and sealing operations of the product can be completed at one time, and the vacuuming, filling with helium and sealing operations can be performed on multiple products at the same time, which can not only improve product quality, but also improve production efficiency.

[0029] Reference Figure 1 , Figure 2 and Figure 3 As an exemplary embodiment of the present invention, the device for vacuuming, filling with helium and sealing the cavity product of the inertial sensor may include a sealing barrel 1, a transmission mechanism 2, a tray 3 and an electric soldering iron assembly. The tray 3 is used to carry a plurality of sensor products 100 of the same specification to be vacuumed, filled with helium and sealed. The sealing barrel 1 can seal the tray 3 and the products carried therein. The tray 3 is replaceable to carry products of different specifications. The sealing barrel 1 also provides an interface for vacuuming, filling with helium and sealing. The transmission mechanism 2 is used to realize the rotation of the tray 3 and the product. The electric soldering iron assembly is used to extend into the sealing barrel 1 to seal the product.

[0030] The sealed barrel 1 can be opened and closed to place and take out the tray 3 and the sensor product, and to replace the tray 3 and the product. In some embodiments of the present invention, the sealed barrel 1 includes a barrel body 11 and a barrel cover 12 for closing the barrel body 11, and the barrel cover 12 is hinged to the barrel body 11 so as to be able to be opened and closed relative to the barrel body 11. In particular, the barrel body 11 also includes a bottom plate 111, a barrel body 112 and a cover plate 113, and the bottom plate 111 and the cover plate 113 respectively cover the two ends of the barrel body 112, and sealing rings are provided at the contact surfaces of the bottom plate 111, the barrel body 112 and the cover plate 113, and the vacuum port 114 and the helium filling port 115 (at Figure 3 The bottom plate 111 is provided with a plurality of support columns 14 for supporting the sealed barrel 1. In addition, a handle 13 is provided on the barrel cover 12 for opening and closing the sealed barrel 1 to facilitate the operation of the barrel cover 12.

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

[0032] Reference Figure 1 and Figure 3 The tray 3 is detachably mounted in the sealed barrel 1, in particular, on the bottom plate 111, through the transmission mechanism 2, and is mounted coaxially with the sealed barrel 1. The transmission mechanism 2 can rotate the tray 3 and the sensor product 100 carried thereon around the axis of the tray 3. In a specific embodiment, the transmission mechanism 2 includes a handwheel 21, an input shaft 22, a bracket assembly 23, and an output shaft 24. The handwheel 21, the input shaft 22, and the bracket assembly 23 are located outside the sealed barrel 1. The handwheel 21 is sleeved on the input shaft 22 to drive the input shaft 22 to rotate. The bracket assembly 23 is fixed to the sealed barrel 1 and rotatably supports the input shaft 22. The bracket assembly 23 may include two L-shaped brackets, which are symmetrically located on both sides of the output shaft 24. A bearing is installed between the bracket and the input shaft 22 to achieve relative movement between the two. 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 transmit power through the bevel gears respectively arranged thereon. The bevel gear transmission is only a way to change the direction of rotation. Similar structures can be used to change the direction of rotation, such as a worm gear transmission mechanism. The output shaft 24 is coaxially connected to the sealing barrel 1 in a rotatable manner, and extends into the sealing barrel 1 to be connected to the tray 3. In this way, when the hand wheel 21 is manually turned, the input shaft 22 drives the output shaft 24 to rotate, thereby rotating the tray 3 and the products carried by it, so that the products reach different positions, and the electric soldering iron assembly can be aligned with the products in turn, and then the products are sealed in turn.

[0033] In order to avoid interference with the operating hand wheel 21, the input shaft 22 is set longer and protrudes outside the sealing barrel 1. Considering the processing cost and processing convenience of the shaft, the input shaft 22 may include a first shaft 221 and a second shaft 222 connected by a coupling 223. The hand wheel 21 is sleeved on the first shaft 221, and the second shaft 222 cooperates with the output shaft 24 to transmit power. In addition, in order to improve the support strength of the input shaft 22, the first shaft 221 can be rotatably supported by a fixing seat 224.

[0034] Combination Figure 4, showing the structure of the tray 3. The tray 3 is disc-shaped, and a plurality of product mounting holes 31 for mounting the sensor product 100 are evenly distributed on the outer periphery, which can be step holes. Specifically, the surface facing the soldering iron tip 41 is a square hole, and the surface facing away from the soldering iron tip 41 is a round hole. As mentioned above, the tray 3 is replaceable. There are multiple trays 3, and the sizes of the product mounting holes 31 on different trays are different. Different mounting holes can be designed according to the different outer dimensions of the products to place different products. When the product model changes, it only needs to replace the corresponding tray with the appropriate mounting hole size to complete the vacuuming, helium filling and sealing operations of different products. The operation is simple, convenient and highly applicable.

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

[0036] In an optional embodiment of the present invention, the electric soldering iron assembly further includes an electrode rod 42 and a compression spring 43. The electrode rod 42 is sealed and connected to the sealed barrel 1 through a mounting plate 44, and is connected to the soldering iron tip 41 through the sealed barrel 1. The mounting plate 44 is sealed and mounted on the barrel cover 12 of the sealed barrel 1. To facilitate the connection of the electric soldering iron assembly on the sealed barrel 1, a sealing plate 45 may be provided on the barrel cover 12 of the sealed barrel 1, and a sealing ring is installed between the barrel cover 12. The mounting plate 44 and the electric soldering iron assembly may be assembled together and then integrally mounted on the sealing plate 45. The electrode rod 42 can move axially between a working position and a non-working position. In the working position, the soldering iron tip 41 is close to the tray 3 and the product to seal the product, for example, using the electric soldering iron to melt around the inflation port of the product and solder. In the non-working position, the soldering iron tip 41 is away from the tray 3 and the product. The compression spring 43 is sleeved on the electrode rod 42, and its two ends are respectively in contact with the mounting plate 44 and the electrode rod 42, so as to keep the electrode rod and the electric soldering iron in the non-working position and make the electrode rod 42 automatically return from the working position to the non-working position.

[0037] By using the device structure described above, in use, firstly, according to the needs of vacuuming, helium filling, and sealing of multiple sensor cavity products of the same model, a suitable tray is selected and the tray is fixed on the transmission mechanism in the sealed barrel. After all the products are placed on the tray, the barrel cover is covered, and then the air in the sealed barrel can be extracted through the vacuuming port and the helium filling port, and the barrel can be filled with helium. After reaching the specified requirements, the vacuuming port and the helium filling port are closed, thereby completing the vacuuming and helium filling operations of multiple products at one time. Afterwards, the transmission mechanism can be used to drive the tray to rotate so that different products on the tray can reach the working position respectively, so as to complete the sealing of multiple products on the tray in sequence by using the electric soldering iron assembly. Therefore, the present invention enables the vacuuming, helium filling, and sealing operations of the products to be completed by installing multiple products at one time on a single device, and the vacuuming, helium filling, and sealing operations can be performed on multiple products at the same time, which is not only simple to operate, but also can improve product quality and production efficiency.

[0038] Finally, it should be noted that the features mentioned and / or shown in the above description of the exemplary embodiments of the present invention may be combined in the same or similar manner into one or more other embodiments, combined with the features in other embodiments or substituted for the corresponding features in other implementations. The technical solutions obtained by these combinations or substitutions shall also be deemed to be included in the protection scope of the present invention.

Claims

1. A device for vacuuming, filling with helium and sealing the cavity product of an inertial sensor, characterized in that: It includes a sealing barrel, a transmission mechanism, a tray and an electric soldering iron assembly; The tray is used to carry a plurality of sensor products to be evacuated, filled with helium and sealed, and is installed in the sealing barrel through the transmission mechanism and installed coaxially with the sealing barrel. The transmission mechanism can rotate the tray and the products carried thereon around the axis of the tray; The sealed barrel can be opened and closed, and is provided with a vacuuming port and a helium filling port for performing vacuuming and helium filling operations respectively; The electric soldering 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 soldering iron head in the electric soldering iron assembly is located in the sealing barrel to seal the product.

2. The device for evacuating, filling and sealing the cavity product of an inertial sensor according to claim 1, characterized in that: The tray is replaceable to carry products of different specifications.

3. The device for vacuuming, filling with helium and sealing the cavity product of an inertial sensor according to claim 1 or 2, characterized in that: The sealed barrel comprises a barrel body and a barrel cover for closing the barrel body, wherein the barrel cover is hinged to the barrel body so as to be openable and closable relative to the barrel body.

4. The device for evacuating, filling and sealing the cavity product of an inertial sensor according to claim 3, characterized in that: The barrel body comprises a bottom plate, a barrel body and a cover plate, and sealing rings are arranged at the contact surfaces of the bottom plate, the barrel body and the cover plate. The vacuum 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.

5. The device for evacuating, filling and sealing the cavity product of an inertial sensor according to claim 3, characterized in that: It also includes a hinge assembly for hingedly connecting the barrel cover to the barrel body, wherein the hinge assembly includes a first hinge seat arranged on the barrel body, a second hinge seat arranged on the barrel cover, and a rotating shaft passing through the first hinge seat and the second hinge seat.

6. The device for evacuating, filling and sealing the cavity product of an inertial sensor according to claim 3, characterized in that: The barrel cover is provided with a handle for opening and closing the sealed barrel.

7. The device for vacuuming, filling with helium and sealing the cavity product of an inertial sensor according to claim 1 or 2, characterized in that: The transmission mechanism comprises a hand wheel, an input shaft, a bracket assembly and an output shaft, wherein the hand wheel, the input shaft and the bracket assembly are located outside the sealing barrel; The hand wheel is sleeved on the input shaft and is used to drive the input shaft to rotate; The bracket assembly is fixed to the sealing barrel and rotatably supports the input shaft; The input shaft and the output shaft transmit power via bevel gears respectively arranged thereon; The output shaft is coaxially connected to the sealing barrel in a rotatable manner and extends into the sealing barrel to be connected to the tray.

8. The device for evacuating, filling and sealing the cavity of an inertial sensor according to claim 7, characterized in that: The input shaft includes a first shaft and a second shaft connected by a coupling, the hand wheel is sleeved on the first shaft, and the second shaft cooperates with the output shaft to transmit power; the first shaft is rotatably supported by a fixed seat.

9. The device for vacuuming, filling with helium and sealing the cavity product of an inertial sensor according to claim 1 or 2, characterized in that: The electric soldering iron assembly also includes an electrode rod and a compression spring; The electrode rod is sealed and connected to the sealing barrel through a mounting plate, passes through the sealing barrel and is connected to the soldering iron head, and can be axially moved 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, and 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 two ends thereof are respectively abutted against the mounting plate and the electrode rod, so as to enable the electrode rod to automatically return from the working position to the non-working position.

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