Universal tool for curing and pressing antenna rubber mold

Abstract

The utility model discloses a universal tool for curing and pressing an antenna rubber mold, which comprises a base, limiting side columns are arranged on two sides of the base, a top plate is fixedly mounted at the upper parts of the limiting side columns on the two sides, a middle plate is mounted between the limiting side columns on the two sides through linear bearings, an embedded nut is arranged in the middle of the middle plate, and the top plate is fixedly mounted on the top plate. A screw penetrates through the embedded nut and is matched with the embedded nut through threads, the upper portion of the screw penetrates through the top plate, the screw and the top plate are installed through a back-to-back angular contact bearing, and a spring assembly is arranged at the bottom of the middle plate. According to the utility model, as many antennas as possible can be clamped at one time, and the crimping force required by a single antenna can be provided by the elastic deformation generated when the independent spring with better linearity is compressed.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic assembly, in particular to a universal tooling for curing and pressing an antenna rubber mold. Background Art

[0002] The medium-temperature curing carrier film commonly used in the antenna production process requires a pressure of 0.1MPa on the antenna surface during the curing process, with a curing temperature of 120°C for 3 hours and curing in an oven. The existing pressure application method in the industry is single, generally using a copper block of sufficient weight to place on the upper surface of the antenna to provide pressure. According to calculations, the weight of the copper block used in each conventional antenna is as high as 25kg, which is difficult to load and unload and occupies a large area, and the overall assembly efficiency is low. Utility Model Content

[0003] In view of the above-mentioned problems, the utility model proposes a universal tooling for applying pressure during curing of antenna rubber molds, which can clamp as many antennas as possible at one time. The crimping force required for a single antenna can be provided by the elastic deformation generated when an independent spring with good linearity is compressed. Through theoretical calculation combined with experimental verification, it is ensured that the pressure provided by the tooling just reaches the required value.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A universal tooling for curing and pressurizing an antenna rubber mold comprises a base, with limiting side columns arranged on both sides of the base, top plates fixedly mounted on the upper parts of the limiting side columns on both sides, an intermediate plate mounted in the middle of the limiting side columns on both sides via linear bearings, an embedded nut arranged in the middle of the intermediate plate, a screw rod passing through the embedded nut and mating with the nut via threads, an upper part of the screw rod passing through the top plate and being mounted with the top plate via back-to-back angular contact bearings, and a group of spring assemblies arranged at the bottom of the intermediate plate.

[0006] Furthermore, each of the spring assemblies comprises a column passing through the middle plate, a pressure head is arranged at the bottom of each column, a spring is arranged on each column between the pressure head and the middle plate, and a retaining ring is arranged at the top of each column to be clamped on the middle plate.

[0007] Furthermore, a clearance groove / hole is provided at the position of the screw rod centered in the middle of the base and at the position of the pressure head centered in the middle.

[0008] Furthermore, the limiting side column and the base are connected and fixed by flanges and bolts; the limiting side column and the top plate are connected and fixed by processed steps and nuts.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The utility model reduces the weight of the tooling, saves space, and can realize multi-piece clamping; saves antenna production time, shortens the production cycle, and effectively improves production capacity; the pressurization is more stable, and the quality of the adhesive film cured by the tooling is more stable and reliable; reduces the workload of operators and saves a lot of man-hour costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is a top view of the utility model;

[0013] Figure 3 It is a left view of the utility model;

[0014] Figure 4 yes Figure 1 AA section view;

[0015] Figure 5 yes Figure 1 BB cross-section diagram;

[0016] Figure 6 It is a top view of the base of the utility model.

[0017] Description of reference numerals:

[0018] 1. Base; 2. Limiting side column; 3. Top plate; 4. Linear bearing; 5. Middle plate; 6. Embedded nut; 7. Screw; 8. Back-to-back angular contact bearing; 9. Spring assembly; 10. Flange; 11. Nut; 12. Clearance slot / hole; 9-1. Column; 9-2. Pressure head; 9-3. Spring; 9-4. Retaining ring. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1-2As shown, the utility model discloses a universal tooling for curing and pressing antenna rubber molds, comprising a base 1, with limited side columns 2 arranged on both sides of the base, top plates 3 fixedly installed on the upper parts of the limited side columns on both sides, and intermediate plates 5 installed in the middle of the limited side columns on both sides through linear bearings 4, and an embedded nut 6 arranged in the middle of the intermediate plate, a screw 7 passes through the embedded nut and is threadedly matched with it, the upper part of the screw passes through the top plate and is installed with the top plate through a back-to-back angular contact bearing 8, and a group of spring components 9 are arranged at the bottom of the intermediate plate. The limited side columns are connected and fixed to the base through a flange 10 and bolts; the limited side columns are connected and fixed to the top plate through a processing step and a nut 11. The utility model discloses that the screw and the top plate are installed through back-to-back angular contact bearings, and such a design is mainly to minimize the friction resistance of the operator when rotating the screw; the intermediate plate is installed on the side columns between the base and the base through a pair of linear bearings, and the use of linear bearings here is also to minimize the friction resistance between the intermediate plate and the side columns.

[0021] like Figure 1 As shown, four spring assemblies 9 are provided in this embodiment. In order to ensure that the four springs can work synchronously, each of the spring assemblies 9 includes a column 9-1 passing through the middle plate, a pressure head 9-2 is provided at the bottom of each column, a spring 9-3 is provided on each column between the pressure head and the middle plate, and a clamping ring 9-4 is provided on the top of each column to clamp onto the middle plate.

[0022] In this embodiment, an embedded nut made of beryllium copper is embedded in the middle plate to achieve threaded cooperation with the screw. During operation, the middle screw is rotated by a wrench to gradually apply pressure, and the rotation is stopped when the specified pressure is reached. According to the measured spring stiffness coefficient, it is possible to calculate whether the specified pressure value has been reached by measuring the compression of the spring. In order to ensure that the four springs generate the same pressure after a certain compression displacement, it is necessary to calibrate the stiffness coefficient and linearity of each spring to ensure that the selected stiffness coefficient and linearity are consistent. During installation, the pre-compression of each spring is adjusted to ensure that the same pressure is generated under the same compression amount.

[0023] Furthermore, according to the structural characteristics of different planar helical antennas, the position of the screw in the middle of the base and the position of the pressure head in the middle are both provided with a clearance groove / hole 12 to facilitate avoidance during the pressure application process.

[0024] In this embodiment, the material of the top plate, middle plate, base, side columns, spring columns and pressure head is Yisheng S136H die steel, which is characterized by high mirror finish, good polishing performance, small heat treatment deformation, and is more corrosion-resistant and has high strength than ordinary stainless steel; the material of the screw is SKD61 hot working die steel, which has good cutting performance and excellent wear resistance; the material of the embedded nut is beryllium copper with good wear resistance; the spring material is oil quenched and tempered spring steel wire 50CrV, which has good elasticity and stable high temperature performance.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A universal tool for curing and pressing an antenna rubber mold, characterized in that: The tooling includes a base, with limited side columns on both sides of the base, top plates fixedly installed on the upper parts of the limited side columns on both sides, an intermediate plate installed in the middle of the limited side columns on both sides through linear bearings, an embedded nut is arranged in the middle of the intermediate plate, a screw rod passes through the embedded nut and cooperates with the nut through a thread, the upper part of the screw rod passes through the top plate and is installed with the top plate through a back-to-back angular contact bearing, and a group of spring assemblies are arranged at the bottom of the intermediate plate.

2. The antenna glue mold curing and pressurizing universal tooling according to claim 1, characterized in that: Each of the spring assemblies comprises a column passing through the middle plate, a pressure head is arranged at the bottom of each column, a spring is arranged on each column between the pressure head and the middle plate, and a clamping ring is arranged at the top of each column to clamp on the middle plate.

3. The antenna glue mold curing and pressurizing universal tooling according to claim 2, characterized in that: The position of the screw rod in the middle of the base and the position of the pressure head in the middle are both provided with a clearance groove / hole.

4. A universal tool for curing and pressing an antenna rubber mold according to claim 1, 2 or 3, characterized in that: The limiting side column is connected and fixed to the base through a flange and bolts; the limiting side column is connected and fixed to the top plate through a processed step and a nut.

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