Tooling for combining a light filter cap and a heat sink

Abstract

This utility model discloses a fixture for assembling a filter cap and a heat sink, comprising a fixture body, a base plate, and a pressure plate. The fixture body is placed on top of the base plate and serves to abut against the filter cap installed in the fixture hole at the bottom of the fixture body. The pressure plate is snapped into the fixture hole at the top of the fixture body, so that pressing the pressure plate presses and assembles the filter cap and heat sink installed in the fixture hole. By providing several through-holes on the fixture body, the assembler can use tweezers to sequentially snap the filter cap into the back hole of the fixture hole, and then flip it over by the base plate to place the heat sink into the front hole. After placement, the heat sink is attached to the filter cap by the parallel and spaced pressing blocks on the pressure plate, and then the assembled filter cap and heat sink are pushed out of the fixture hole, thereby improving the assembly efficiency of the filter cap and heat sink.

Description

Technical Field

[0001] This utility model relates to the field of aerospace instrument component assembly technology, specifically to a tooling for assembling filter caps and heat sinks. Background Technology

[0002] Optical filter caps are important components of instruments in aerospace and other fields. Their function is to adjust the wavelength and frequency of optical signals and improve the stability of optical signals. Heat sinks are usually attached to them, which play an important role in shielding light and dissipating heat.

[0003] Due to the high integration, compact structure, rapid iteration, and anti-static requirements of instruments and meters in the aerospace field, some components are still manufactured using manual assembly methods, including the combination of filter caps and heat sinks. Qingdao Bolier Machinery Equipment Co., Ltd. designed a "concentric positioning fixture (CN 105522307 A)," which aims to perform concentric welding of pipes by cooperating with the base, upper pipe positioning slot, and bracket. Its concentricity is essentially controlled by adjusting the length of the bracket after calculation, resulting in low cost. However, the concentricity error is relatively large, essentially resembling a welding auxiliary fixture, and cannot be applied to the assembly of filter caps and heat sinks in the aerospace field. In actual production, filter caps and heat sinks are small in size, requiring manual pasting assembly. Manual assembly is not only inefficient but also cannot accurately position the components during assembly, leading to misalignment of the heat sink and filter cap during assembly, resulting in the risk of light leakage from the filter cap. Therefore, an auxiliary fixture is urgently needed to help solve this problem. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a tooling for assembling filter caps and heat sinks to solve the technical problem that the existing filter caps and heat sinks are small in size and require manual pasting and assembly. Manual assembly is not only inefficient, but also cannot accurately position them during the assembly process, which leads to the misalignment of the heat sink and filter cap during assembly, resulting in the risk of light leakage from the filter cap.

[0005] According to the technical solution provided in the embodiments of this application, a tooling for assembling a filter cap and a heat sink is provided; it includes a tooling body, a base plate and a pressure plate. The tooling body is placed on top of the base plate and is used to abut against the filter cap installed in the tooling hole at the bottom of the tooling body. The pressure plate is snapped into the tooling hole at the top of the tooling body so that pressing the pressure plate can press and fit the filter cap and heat sink installed in the tooling hole together.

[0006] A plurality of tooling holes are arranged side by side and spaced apart on the tooling body, and each tooling hole includes a front hole, a back hole and a vertical hole. The front hole and the back hole are respectively installed at the upper and lower ends of the vertical hole. The front hole and the back hole have a tapered structure, which facilitates the assembly of the filter cap and the heat sink into the tooling hole.

[0007] The vertical hole includes an upper hole and a lower hole, the diameter of the upper hole being smaller than the diameter of the lower hole, so that the filter cap is snapped into the lower hole, and the heat sink is snapped into the upper hole.

[0008] Furthermore, a square groove is provided on the side of the front face.

[0009] Furthermore, both the base plate and the tooling body are rectangular in shape.

[0010] Furthermore, the width of the base plate is greater than the width of the tooling body.

[0011] Furthermore, the bottom of the pressure plate is provided with a plurality of pressing blocks along its length, each pressing block having a cylindrical structure and a diameter smaller than that of the upper hole of the vertical hole.

[0012] Furthermore, the horizontal and vertical spacing of each tooling hole on the tooling body is approximately 2 centimeters.

[0013] Furthermore, both the front hole and the back hole have chamfers.

[0014] Furthermore, the base plate, the tooling body, and the pressure plate are made of the same material.

[0015] In summary, the beneficial effects of this application are as follows:

[0016] 1. By setting several through holes on the main body of the tooling, the assembly personnel can use tweezers to snap the filter cap into the back hole of the tooling hole in sequence, and then flip it over by the base plate to place the heat sink into the front hole. After placement, the heat sink is attached to the filter cap by the pressing blocks arranged side by side and spaced on the pressure plate, and then the assembled filter cap and heat sink are pushed out of the tooling hole, thereby improving the assembly efficiency of the filter cap and heat sink.

[0017] 2. The front and back holes on the tooling holes are set as conical structures, and the upper hole diameter of the vertical hole connected to the bottom of the front hole is smaller than the lower hole diameter connected to the back hole, so as to position the heat sink and the filter cap in the vertical hole, reduce the offset rate of the heat sink during the bonding and assembly process, and thus reduce the risk of light leakage after the filter cap is assembled.

[0018] Third, the tooling holes are designed as through holes so that the assembly tooling can be manufactured with only one clamping during the machining process, reducing the machining difficulty and effectively avoiding the negative impact on the concentricity of the tooling holes caused by multiple clamping, thus resulting in extremely high concentricity of the finished product, thereby reducing the offset rate of the heat sink and filter cap during the assembly process. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the tooling hole of this utility model;

[0022] Figure 3 This is a top view of the tooling hole structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the bottom structure of the tooling body of this utility model;

[0024] Figure 5 This is a schematic diagram of the pressure plate structure of this utility model.

[0025] The following are the markings in the diagram: Tooling body 100, tooling hole 110, front hole 111, back hole 112, vertical hole 113, upper hole 1131, lower hole 1132, square groove 120, base plate 200, pressure plate 300, pressing block 310. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] A tooling for assembling filter caps and heat sinks, such as Figures 1-5As shown, the fixture includes a main body 100, a base plate 200, and a pressure plate 300. The main body 100 is placed on top of the base plate 200 so that corresponding filter caps are placed in each fixture hole 110 on the main body 100. Then, the base plate 200 is placed on top of the main body 100 to abut the filter caps placed in each fixture hole 110. This allows the operator to rotate the base plate 200 and the main body 100 180 degrees. Then, using tweezers, each heat sink with adhesive is placed in the front hole 111 on the fixture hole 110. The pressure plate 300 is used to press and attach the heat sinks to the filter caps, thereby improving the efficiency of manual assembly of filter caps and heat sinks.

[0029] like Figure 2 and Figure 4 As shown, several tooling holes 110 are arranged side by side and spaced apart on the tooling body 100, and the horizontal and vertical spacing of each tooling hole 110 is about 2 cm. The tooling holes 110 are designed as through holes so that the assembly tooling can be manufactured with only one clamping during the machining process, reducing the machining difficulty and effectively avoiding the negative impact on the concentricity of the tooling holes 110 caused by multiple clamping, thereby making the concentricity of the finished product extremely high, and thus reducing the offset rate of the heat sink and filter cap during the assembly process.

[0030] like Figure 2 and Figure 3 As shown, the tooling hole 110 includes a front hole 111, a back hole 112, and a vertical hole 113. The front hole 111 and the back hole 112 are correspondingly installed at the upper and lower ends of the vertical hole 113. The bottom opening diameter of the front hole 111 is suitable for the diameter of the heat sink, while the top opening diameter of the back hole 112 is suitable for the diameter of the filter cap. The front hole 111 and the back hole 112 have a tapered structure so that the upper and lower openings of the tooling hole 110 are chamfered. The chamfer of the tooling hole 110 serves two purposes: firstly, it blunts the edges, and secondly, it increases the outer surface area of ​​the hole. This guides and assists the operator in placing the heat sink and the filter cap into the correct assembly position in the tooling hole 110. It also facilitates the quick assembly of the filter cap and the heat sink into the tooling hole 110, thereby improving the assembly efficiency of the heat sink and the filter cap.

[0031] like Figure 1 and Figure 3As shown, a square groove 120 is provided on the side of the front face 111. The main purpose of the square groove 120 is to avoid tweezers, making it easier for operators to place the heat sink with the base adhesive into the corresponding tooling hole 110. During the assembly process, this allows the operator to hold the tweezers as flat as possible, reducing the possibility of the heat sink base adhesive sticking to the tooling and reducing the workload of the operator. At the same time, the square groove 120 is designed as a square. On the one hand, it is based on the operator's consideration. Whether left-handed or right-handed, it allows the arm to be more relaxed during operation, which is ergonomic. On the other hand, in machining, the square shape can be completed step by step in the horizontal and vertical directions, avoiding the need for diagonal machining with two motors, thereby lowering the threshold of mechanical manufacturing.

[0032] like Figure 1 As shown, both the base plate 200 and the fixture body 100 are rectangular structures, and the width of the base plate 200 is greater than the width of the fixture body 100, so that after the filter cap is assembled in the back hole 112 of the fixture body 100, the base plate 200 can cover the top of the fixture body 100 to prevent the assembled filter cap from falling off. After the fixture body 100 is flipped over, the base plate 200 can abut against the bottom of the fixture body 100.

[0033] like Figure 1 and Figure 5 As shown, a number of pressing blocks 310 are arranged along the length of the bottom of the pressure plate 300, and each pressing block 310 has a cylindrical structure. The diameter of the pressing block 310 is smaller than the diameter of the upper hole 1131 of the vertical hole 113. After the heat sink with the base adhesive is assembled into the front hole 111, the pressing blocks 310 arranged at the bottom of the pressure plate 300 are snapped into the corresponding front hole 111. Then, the pressing blocks 310 push the heat sink along the vertical direction of the vertical hole 113 so that the bottom of the heat sink and the top of the filter cap are fitted together. After the fitting is completed, the pressure plate 300 is pressed to make the assembled filter cap and heat sink detach from the tooling hole 110, thereby improving the manual assembly efficiency of the heat sink and filter cap.

[0034] like Figure 3 As shown, the vertical hole 113 includes an upper hole 1131 and a lower hole 1132. The diameter of the upper hole 1131 is smaller than the diameter of the lower hole 1132, so that the filter cap is snapped into the lower hole 1132. This allows the tooling hole 110 to position and snap the filter cap in place, preventing it from shifting during assembly and thus reducing the risk of light leakage after the filter cap is assembled.

[0035] like Figure 1 As shown, the base plate 200, the tooling body 100 and the pressure plate 300 are made of the same material. The material is simple and easy to manufacture. It can be manufactured with the most basic machining center or machine tool, and the cost is low.

[0036] The assembly steps of the tooling for combining filter caps and heat sinks according to this utility model are as follows:

[0037] Step 1: Place the fixture body 100 with the back hole 112 on the operating table. The operator uses tweezers to insert the filter caps into each of the back holes 112 of the fixture body 100 in turn.

[0038] Step 2: Place the base plate 200 on top of the fixture body 100 equipped with each filter cap, then rotate the fixture body 100 and the base plate 200 together by 180 degrees. After rotating, place the base plate 200 and the fixture body 100 on the operating table.

[0039] Step 3: The operator uses tweezers to place the heat sink with the base adhesive into the front hole 111 of the fixture body 100 one by one;

[0040] Step 4: Use the pressure plate 300 to press the heat sink and the top of the filter cap firmly together to make the heat sink and the filter cap stick together.

[0041] Step 5: Pull out the base plate 200, then lift the fixture body 100, and use the pressure plate 300 to push the assembled heat sink and filter cap out of the fixture hole 110 on the fixture body 100, so that the assembled heat sink and filter cap can be removed from the fixture body 100, making it convenient for the operator to collect them.

[0042] The above description is merely a preferred embodiment of this application and an explanation of the technical principles and solutions employed. Furthermore, the scope of the utility model involved in this application is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A tooling for assembling a filter cap and a heat sink, comprising a tooling body (100), a base plate (200), and a pressure plate (300), wherein the tooling body (100) is placed on top of the base plate (200) for abutting a filter cap installed in a tooling hole (110) at the bottom of the tooling body (100), and the pressure plate (300) is snapped into the tooling hole (110) at the top of the tooling body (100) so that pressing the pressure plate (300) thereby presses and fits the filter cap and heat sink installed in the tooling hole (110) together, characterized in that: A plurality of tooling holes (110) are arranged side by side and spaced apart on the tooling body (100), and each tooling hole (110) includes a front hole (111), a back hole (112) and a vertical hole (113). The front hole (111) and the back hole (112) are respectively installed at the upper and lower ends of the vertical hole (113), and the front hole (111) and the back hole (112) have a tapered structure, which facilitates the assembly of the filter cap and the heat sink into the tooling hole (110); The vertical hole (113) includes an upper hole (1131) and a lower hole (1132). The diameter of the upper hole (1131) is smaller than the diameter of the lower hole (1132) so that the filter cap is snapped into the lower hole (1132) and the heat sink is snapped into the upper hole (1131).

2. The tooling for assembling a filter cap and a heat sink according to claim 1, characterized in that: The side of the front face (111) is provided with a square groove (120).

3. The tooling for assembling a filter cap and a heat sink according to claim 1, characterized in that: Both the base plate (200) and the tooling body (100) are rectangular structures.

4. The tooling for assembling a filter cap and a heat sink according to claim 3, characterized in that: The width of the base plate (200) is greater than the width of the tooling body (100).

5. The tooling for assembling a filter cap and a heat sink according to claim 1, characterized in that: The bottom of the pressure plate (300) is provided with a plurality of pressing blocks (310) along its length. Each pressing block (310) has a cylindrical structure and the diameter of the pressing block (310) is smaller than the diameter of the upper hole (1131) of the vertical hole (113).

Images