An evaporator leak detection fixture

Abstract

The application discloses an evaporator leak detection clamp, comprising a vacuum box door plate, which is matched with or separated from a vacuum detection box body, and a plurality of inner box pads are arranged on the surface of the vacuum box door plate, the inner box pads are used for bearing workpieces to be treated, a clamp detection gas pipe joint is arranged on one side of the inner box pad, the clamp detection gas pipe joint is used for being connected with or separated from the workpieces to be treated, the vacuum box door plate is provided with a clamp bottom plate at the bottom, a plurality of clamp support columns are arranged between the clamp bottom plate and the vacuum box door plate, a clamp pressing device is arranged on one side of each inner box pad, and the clamp pressing device is used for pressing or loosening the workpieces to be treated; and the clamp bottom plate is attached to or separated from a supporting seat, so that the technical problem that different leak detection clamps are needed in different detection stations in the prior art is solved.

Description

Technical Field

[0001] This invention belongs to the field of mechanical technology, and in particular relates to an evaporator leak detection fixture. Background Technology

[0002] In the production process of evaporators, one of the most important steps is the leak detection process, which has many sub-steps, such as large leak detection and vacuum helium detection. Different detection steps require different detection devices. Current technology uses different fixtures for different detection stations, which causes the workpiece to be inserted and removed multiple times during the detection process. This results in low detection efficiency and the workpiece is easily damaged by repeated insertion and removal. Summary of the Invention

[0003] The purpose of this invention is to provide an evaporator leak detection fixture, which solves the technical problem in the prior art that different leak detection fixtures are required for different detection stations.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] An evaporator leak detection fixture includes: a vacuum chamber door panel, which is either fitted to or detached from a vacuum detection chamber. The vacuum chamber door panel has several inner pads on its surface, which support the workpiece to be processed. A fixture detection air pipe connector is provided on one side of each inner pad, which is used to connect to or separate from the workpiece. The bottom of the vacuum chamber door panel has a fixture base plate, and several fixture supports are provided between the base plate and the door panel. A fixture holding device is provided on one side of each inner pad, which is used to press or release the workpiece. The fixture base plate is either fitted to or detached from a support base.

[0006] The present invention provides an evaporator leak detection fixture, wherein the fixture holding device includes a fixture holding cylinder, and a fixture holding plate is provided at the output end of the fixture holding cylinder. During the movement of the fixture holding plate, the workpiece to be processed is pressed or released.

[0007] The present invention provides an evaporator leak detection fixture, wherein one side of the inner pad plate is hinged to the surface of the vacuum chamber door panel via a fixture hinge, and the inner pad plate rotates relative to the vacuum chamber door panel with the fixture hinge as the rotation axis to achieve angle adjustment of the two planes.

[0008] The present invention provides an evaporator leak detection fixture, wherein the relative rotation between the inner pad and the vacuum chamber door is powered by a cylinder.

[0009] The present invention provides an evaporator leak detection fixture, wherein the fixture support has a through fixture air pipe in the middle and the end of the fixture air pipe has a fixture quick-change connector.

[0010] The present invention provides an evaporator leak detection fixture, wherein the number of the inner pads is two, both of which are arranged along the length direction of the vacuum chamber door panel.

[0011] The present invention provides an evaporator leak detection fixture, wherein the area of ​​the vacuum chamber door panel is larger than the area of ​​the fixture base plate.

[0012] The beneficial effects of this invention are as follows: It proposes an evaporator leak detection fixture, which combines the vacuum chamber door panel with the inner chamber pad to adapt to the needs of different testing stations. Only one workpiece clamping is required, and there is no need to change the fixture midway. By setting the hinged inner chamber pad, the angle can be automatically adjusted to adapt to workpieces of different structures and models. By setting the fixture holding device, the workpiece can be automatically pressed, preventing the workpiece from changing position during the testing process and affecting the leak detection accuracy. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0015] Figure 2 This is a bottom view of an embodiment of the present invention;

[0016] Figure 3 This is a rear view of an embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1-3As shown, an evaporator leak detection fixture includes: a vacuum chamber door panel 1120, which is fitted or detached from a vacuum detection chamber; the surface of the vacuum chamber door panel 1120 has several inner chamber pads 1140, which are used to support a workpiece 1000 to be processed; a fixture detection air pipe connector 1160 is provided on one side of the inner chamber pad 1140, which is used to connect or disconnect from the workpiece 1000 to be processed; a fixture base plate 1111 is provided at the bottom of the vacuum chamber door panel 1120; several fixture supports 1112 are provided between the fixture base plate 1111 and the vacuum chamber door panel 1120; a fixture holding device 1130 is provided on one side of each inner chamber pad 1140, which is used to press or release the workpiece 1000 to be processed; and the fixture base plate 1111 is fitted or detached from the support seat.

[0019] In use, the machine typically operates at multiple workstations. For example, at the initial workstation, the corresponding fixture is assembled to test the gas pipe connector 1160 according to different workpieces 1000 to be processed. Then, it moves to another workstation to clamp the workpiece 1000 to be processed. After clamping, the fixture holding device 1130 works to press the workpiece 1000 to be processed tightly. Then, the large leak detection operation is performed. After completion, the machine continues to the next workstation for vacuum helium testing. At this time, the fixture as a whole is raised or the vacuum chamber is lowered so that the vacuum chamber door 1120 is matched with the vacuum chamber. After completion, the vacuum operation and helium testing are performed. In this embodiment, the fixture is used continuously in each workstation and will not be replaced in the middle.

[0020] In a preferred embodiment of the present invention, the clamping device 1130 includes a clamping cylinder 1132, and a clamping plate 1131 is provided at the output end of the clamping cylinder 1132. During the movement of the clamping plate 1131, the workpiece 1000 to be processed is clamped or released. The workpiece 1000 is usually placed horizontally or vertically. Regardless of the method, the clamping can be achieved by adjusting the stroke of the cylinder.

[0021] In a preferred embodiment of the present invention, one side of the inner pad 1140 is hinged to the surface of the vacuum chamber door panel 1120 via a clamp hinge 1150. The inner pad 1140 rotates relative to the vacuum chamber door panel 1120 with the clamp hinge 1150 as the rotation axis to achieve angle adjustment of the two planes.

[0022] In a preferred embodiment of the present invention, the relative rotation between the inner pad 1140 and the vacuum chamber door 1120 is powered by a cylinder.

[0023] In a preferred embodiment of the present invention, the clamp support 1112 has a through clamp air pipe 1114 in the middle, and the end of the clamp air pipe 1114 has a clamp quick-change connector 1113. This arrangement allows the workpiece to be disassembled during the entire clamp change station process, thereby realizing the completion of the entire inspection in one clamping.

[0024] In a preferred embodiment of the present invention, there are two inner pads 1140, both of which are arranged along the length of the vacuum chamber door 1120. This allows for simultaneous processing of two workpieces at a time, improving testing efficiency.

[0025] In a preferred embodiment of the present invention, the area of ​​the vacuum chamber door panel 1120 is larger than the area of ​​the fixture base plate 1111. By having a groove at the support frame during the operation of the fixture, the vacuum chamber door panel 1120 is supported at the edge of the groove, and the remaining part passes through the groove to connect the quick-change connector 1113 of the fixture to the gas source pipe.

[0026] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An evaporator leak detection fixture, characterized in that, include: A vacuum chamber door panel (1120) is fitted with or detached from the vacuum testing chamber body. The surface of the vacuum chamber door panel (1120) has several inner chamber pads (1140). These inner chamber pads (1140) are used to support the workpiece (1000) to be processed. A fixture detection air pipe connector (1160) is provided on one side of each inner chamber pad (1140). The fixture detection air pipe connector (1160) is used to connect to or detach from the workpiece (1000) to be processed. The vacuum chamber door... The bottom of the plate (1120) has a clamp base plate (1111), and there are several clamp supports (1112) between the clamp base plate (1111) and the vacuum chamber door plate (1120). Each of the chamber pads (1140) is provided with a clamp holding device (1130) on one side. The clamp holding device (1130) is used to press or release the workpiece (1000) to be processed. The clamp base plate (1111) is used to fit or separate from the corresponding support seat at the large leak detection station and the vacuum helium detection station, respectively. The clamping device (1130) includes a clamping cylinder (1132), and a clamping plate (1131) is provided at the output end of the clamping cylinder (1132). The clamping plate (1131) clamps or releases the workpiece (1000) to be processed during the movement. The inner pad (1140) is hinged to the surface of the vacuum chamber door panel (1120) via a clamp hinge (1150). The inner pad (1140) rotates relative to the vacuum chamber door panel (1120) with the clamp hinge (1150) as the rotation axis to achieve angle adjustment of the two planes. The relative rotation between the inner pad (1140) and the vacuum chamber door (1120) is powered by a cylinder; The clamp support (1112) has a through clamp air pipe (1114) in the middle, and the clamp air pipe (1114) has a clamp quick-change connector (1113) at the end. The clamp quick-change connector (1113) is used to connect with the air source pipe of the corresponding station so that the evaporator leak detection clamp does not need to disassemble the workpiece (1000) to be processed during the station change process.

2. The evaporator leak detection fixture according to claim 1, characterized in that, There are two inner pads (1140), both of which are set along the length of the vacuum chamber door panel (1120).

3. The evaporator leak detection fixture according to claim 1, characterized in that, The area of ​​the vacuum chamber door panel (1120) is larger than that of the fixture base plate (1111).

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