A welding graphite tooling jig for copper-based heat sink positioning

Abstract

This utility model discloses a welding graphite fixture for positioning copper-based heat sinks, relating to the field of welding fixture technology. It includes a base with a rod-bearing hole at its inner end. A hydraulic rod is installed in the middle of the rod-bearing hole, a connecting rod shaft is installed at the upper end of the hydraulic rod, a fixture platform is installed at the outer end of the connecting rod shaft, and a connecting seat shaft is installed at the lower end of the fixture platform. This utility model, through the base, fixture platform, first clamping plate, opposing screw shaft, aligning clamping plate, and synchronous motors, fixes the entire device in the welding position through the opening at the bottom of the base. The copper-based heat sink is then placed on the fixture platform, and two synchronous motors drive the opposing screw shafts to rotate simultaneously, causing the first clamping plate and the aligning clamping plate to move centrally on the opposing screw shafts simultaneously. This centrally positions and clamps the copper-based heat sink on the fixture platform, adapting to copper-based heat sinks of different sizes and improving the adaptability of the device's clamping mechanism.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically a welding graphite tooling fixture for positioning copper-based heat sinks. Background Technology

[0002] Copper-based heat sinks are functional components made of copper or copper alloys, manufactured through special structural design and processes, used for efficient heat conduction and dissipation. They are widely used in electronics, power, new energy and other fields. Copper-based heat sinks are often welded using laser welding, reflow welding and other processes with high temperatures. Graphite has a melting point exceeding both of these, allowing it to work stably for a long time at 1600℃. This avoids the positioning failure caused by high-temperature softening of traditional metal fixtures, such as aluminum alloys. The use of graphite tooling fixtures is determined by the characteristics of copper materials and the requirements of the welding process, which require high stability in clamping and centering. Existing welding graphite tooling fixtures for positioning copper-based heat sinks are not well adapted to the positioning and clamping of copper-based heat sinks, and the welding flexibility is poor. Therefore, a welding graphite tooling fixture for positioning copper-based heat sinks is needed.

[0003] Existing welding graphite fixtures for positioning copper-based heat sinks cannot effectively improve the adaptability of the device clamping and the flexibility of the device welding during operation. Therefore, there is an urgent need for a welding graphite fixture for positioning copper-based heat sinks. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a welding graphite fixture for positioning copper-based heat sinks, so as to solve the problem that existing welding graphite fixtures for positioning copper-based heat sinks cannot effectively improve the adaptability of device clamping and cannot improve the flexibility of device welding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding graphite fixture for positioning a copper-based heat sink, comprising a base, a rod bearing hole at the inner end of the base, a hydraulic rod installed at the middle end of the rod bearing hole, a connecting rod shaft installed at the upper end of the hydraulic rod, a fixture platform installed at the outer end of the connecting rod shaft, and a connecting seat shaft installed at the lower end of the fixture platform.

[0006] The fixture table has a sliding groove on its side end, a first clamping plate is installed at the inner end of the sliding groove, a counter-rotating screw shaft is installed at the side end of the first clamping plate, an alignment clamping plate is installed at the outer end of the counter-rotating screw shaft, and a synchronous motor is installed at the side end of the counter-rotating screw shaft.

[0007] Preferably, the hydraulic rod forms a rotating structure with the base through the rod bearing hole, and the hydraulic rod forms a rotating structure with the fixture table through the connecting rod shaft.

[0008] Preferably, the fixture platform is connected to the base via a connecting shaft to form a rotating structure, and the fixture platform is connected to the base via a hydraulic rod to form a lifting structure.

[0009] Preferably, the first clamping plate forms a sliding structure with the fixture table through a sliding groove, and the sliding groove is symmetrically arranged with respect to the central axis of the fixture table.

[0010] Preferably, the alignment clamp is threadedly connected to the opposing screw shaft, and the opposing screw shaft forms a rotating structure with the fixture table via a synchronous motor.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a base, a fixture table, a first clamping plate, a counter-rotating screw shaft, a positioning clamping plate, and a synchronous motor to fix the entire device in the welding position through an opening at the bottom of the base. Then, the copper-based heat sink is placed on the fixture table, and the counter-rotating screw shaft is driven by two synchronous motors to rotate simultaneously, so that the first clamping plate and the positioning clamping plate move simultaneously on the counter-rotating screw shaft. This allows the copper-based heat sink to be centered and clamped on the fixture table, adapting to copper-based heat sinks of different sizes and improving the adaptability of the device clamping.

[0013] 2. This utility model, through the setting of a base, hydraulic rod, jig table and connecting shaft, uses the force of the hydraulic rod to make one side of the jig table rotate on the base through the connecting shaft, while the other side is lifted upward, thereby adjusting the vertical angle of the copper-based heat sink plate on the jig table for welding, so that the copper-based heat sink plate can meet the welding and installation work at different angles, and improve the flexibility of the device welding. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a structural schematic diagram of the present invention viewed from below;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Base; 2. Supporting rod hole; 3. Hydraulic rod; 4. Connecting rod shaft; 5. Fixture table; 6. Connecting seat shaft; 7. Slide groove; 8. First clamping plate; 9. Opposing screw shaft; 10. Alignment clamping plate; 11. Synchronous motor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] Please see Figures 1-4 A welding graphite fixture for positioning copper-based heat sinks includes a base 1, a rod bearing hole 2 at the inner end of the base 1, a hydraulic rod 3 installed at the middle of the rod bearing hole 2, a connecting rod shaft 4 installed at the upper end of the hydraulic rod 3, a fixture platform 5 installed at the outer end of the connecting rod shaft 4, and a connecting seat shaft 6 installed at the lower end of the fixture platform 5. The hydraulic rod 3 and the base 1 form a rotating structure through the rod bearing hole 2, and the hydraulic rod 3 and the fixture platform 5 form a rotating structure through the connecting rod shaft 4. The fixture platform 5 and the base 1 form a rotating structure through the connecting seat shaft 6. The fixture table 5 forms a lifting structure with the base 1 through the hydraulic rod 3, and fixes the entire device in the welding position through the opening at the bottom of the base 1. Then, the copper-based heat sink is placed on the fixture table 5, and the opposing screw shafts 9 are rotated simultaneously by two synchronous motors 11, so that the first clamping plate 8 and the alignment clamping plate 10 move in the center on the opposing screw shafts 9 at the same time. In this way, the copper-based heat sink is centered and clamped on the fixture table 5, which can adapt to copper-based heat sinks of different sizes and improve the adaptability of the device clamping.

[0022] Please see Figures 1-4 A welding graphite fixture for positioning copper-based heat sinks includes a table 5 with a sliding groove 7 on one side. A first clamping plate 8 is installed inside the sliding groove 7, and a counter-rotating screw shaft 9 is installed on the side of the first clamping plate 8. An alignment clamping plate 10 is installed on the outer end of the counter-rotating screw shaft 9, and a synchronous motor 11 is installed on the side of the counter-rotating screw shaft 9. The first clamping plate 8 and the table 5 form a sliding structure via the sliding groove 7, and the sliding groove 7 is symmetrically arranged about the central axis of the table 5. The alignment clamping plate 10 is threadedly connected to the counter-rotating screw shaft 9, and the counter-rotating screw shaft 10... The screw shaft 9 forms a rotating structure with the fixture table 5 via the synchronous motor 11. The entire device is fixed in the welding position through the opening at the bottom of the base 1. Then, the copper-based heat sink is placed on the fixture table 5, and the opposing screw shafts 9 are rotated simultaneously by the two synchronous motors 11. This causes the first clamping plate 8 and the aligning clamping plate 10 to move centrally on the opposing screw shafts 9 at the same time. This allows the copper-based heat sink to be centered and clamped on the fixture table 5, which is suitable for copper-based heat sinks of different sizes and improves the adaptability of the device clamping.

[0023] Working principle: In use, the entire device is first fixed in the welding position through the opening at the bottom of the base 1. Then, the copper-based heat sink is placed on the fixture table 5, and the two synchronous motors 11 drive the opposing screw shafts 9 to rotate simultaneously. This causes the first clamping plate 8 and the aligning clamping plate 10 to move centrally on the opposing screw shafts 9, thereby centering and clamping the copper-based heat sink on the fixture table 5. This adapts to copper-based heat sinks of different sizes, improving the adaptability of the device's clamping. Furthermore, according to the welding requirements, the force of the hydraulic rod 3 can be used to rotate one side of the fixture table 5 on the base 1 through the connecting shaft 6, while the other side is lifted upwards. This adjusts the vertical angle of the copper-based heat sink on the fixture table 5 for welding, allowing the copper-based heat sink to meet welding installation work at different angles, improving the flexibility of the device's welding process. This completes the use of the device. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding graphite fixture for positioning copper-based heat sinks, comprising a base (1), characterized in that: The base (1) has a rod support hole (2) at its inner end. A hydraulic rod (3) is installed in the middle of the rod support hole (2). A connecting rod shaft (4) is installed at the upper end of the hydraulic rod (3). A fixture table (5) is installed at the outer end of the connecting rod shaft (4). A connecting seat shaft (6) is installed at the lower end of the fixture table (5). The fixture table (5) has a sliding groove (7) on its side end. A first clamping plate (8) is installed at the inner end of the sliding groove (7). A counter-rotating screw shaft (9) is installed at the side end of the first clamping plate (8). A positioning clamping plate (10) is installed at the outer end of the counter-rotating screw shaft (9). A synchronous motor (11) is installed at the side end of the counter-rotating screw shaft (9).

2. The welding graphite fixture for positioning of copper-based heat spreader according to claim 1, wherein: The hydraulic rod (3) forms a rotating structure with the base (1) through the rod bearing hole (2), and the hydraulic rod (3) forms a rotating structure with the fixture table (5) through the connecting rod shaft (4).

3. The welding graphite fixture for positioning a copper-based heat sink according to claim 1, characterized in that: The fixture platform (5) forms a rotating structure with the base (1) via the connecting shaft (6), and the fixture platform (5) forms a lifting structure with the base (1) via the hydraulic rod (3).

4. The welding graphite fixture for positioning of copper-based heat spreader according to claim 1, wherein: The first clamping plate (8) forms a sliding structure with the fixture table (5) through the sliding groove (7), and the sliding groove (7) is symmetrically arranged with respect to the central axis of the fixture table (5).

5. A welding graphite fixture for positioning a copper-based heat sink according to claim 1, characterized in that: The alignment clamp (10) is threadedly connected to the opposing screw shaft (9), and the opposing screw shaft (9) forms a rotating structure with the fixture table (5) through the synchronous motor (11).

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