Machining jig with positioning part capable of being rapidly replaced

Abstract

The utility model discloses a machining jig with a positioning part capable of being rapidly replaced, and belongs to the technical field of copper pin fin heat dissipation substrate machining jigs. The machining jig comprises a base and a placing table, and the placing table is fixedly installed at the top of the base; the positioning and replacing mechanism is used for conveniently replacing a positioning part and is arranged at the top of the base; the positioning and replacing mechanism comprises two sliding rods fixedly installed on the two sides of the top of the base, a replacing assembly is arranged between the two sliding rods on the same side, and adjusting assemblies are arranged between the replacing assembly and the sliding rods. By means of the mode, during use, a sliding fit structure is adopted between the replacement assembly and the sliding rod, rapid disassembly and assembly of the positioning component can be achieved through the cooperation of the adjustment assembly, and copper pin fin heat dissipation substrates of different sizes can be adapted; the height of the positioning component can be flexibly adjusted through the adjusting assembly, and the clamping requirements of different thicknesses and machining positions are met.

Description

Technical Field

[0001] This utility model relates to the technical field of processing fixtures for copper pin-fin heat dissipation substrates, specifically to a processing fixture with a quick-change positioning component. Background Technology

[0002] Copper pin-fin heat sinks are a type of high-efficiency heat dissipation structure widely used in high-power electronic devices. They typically consist of a copper substrate with high thermal conductivity and densely arranged pin fins. These structures feature a large surface area and low thermal resistance, making them suitable for applications with high heat dissipation requirements, such as power modules, lasers, and power supply modules. In actual production, copper pin-fin heat sinks usually require multiple precision machining processes, including drilling, milling, tapping, and orientation positioning. Due to the complex shape, dense arrangement, and diverse dimensions of the pin fin structure, clamps with ordinary screws are often used for positioning.

[0003] However, most existing machining fixtures use screws or manual clamping blocks to position the workpiece. This not only makes the replacement operation cumbersome and inefficient, but also requires frequent disassembly and assembly of the positioning blocks when dealing with heat dissipation substrates of different specifications, increasing the time for changeover and debugging. This makes it difficult to meet the production needs of modern flexible and high-frequency machining.

[0004] Based on this, the present invention designs a machining fixture with quickly replaceable positioning components to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a machining fixture with a quick-change positioning component.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A machining fixture with a quick-change positioning component includes a base and a placement platform, the placement platform being fixedly installed on the top of the base; a positioning replacement mechanism for facilitating the replacement of the positioning component is disposed on the top of the base; wherein, the positioning replacement mechanism includes two slide rods fixedly installed on both sides of the top of the base, a replacement component is disposed between the two slide rods on the same side, and an adjustment component is disposed between the replacement component and the slide rods.

[0008] Furthermore, the replacement component includes a slide plate disposed on the outside of two slide bars on the same side. The surface of the slide plate is provided with a connecting groove. A positioning block is slidably installed on the outside of the connecting groove. A limiting plate is provided on one side of the base located on the positioning block. A limiting hole is provided through the connecting groove on one side of the positioning block. The limiting plate is located inside the limiting hole.

[0009] Furthermore, two positioning frames are fixedly installed on the surface of the base, and the bottoms of the two limiting plates are slidably connected to the two positioning frames respectively.

[0010] Furthermore, both sides of the bottom of the limiting plate are fixedly installed with clamping plates, and both clamping plates are engaged with the inner wall of the positioning frame.

[0011] Furthermore, one side of the connecting groove is set in an arc shape, and the top inner edge of the positioning frame is set in a bevel shape.

[0012] Furthermore, the limiting plate is T-shaped, and each of the two slide rods has a mounting block at its top. The top of each slide rod has a mounting hole, and the mounting block is threadedly connected to the mounting hole.

[0013] Furthermore, the adjustment assembly includes a screw disposed on the surface of the slide plate, the screw passing through the slide plate and threadedly connected to the slide plate, and one end of the screw abutting against the surface of an adjacent slide bar.

[0014] Furthermore, the surface of the slide bar is provided with a clamping groove, and one end of the screw bar abuts against the inner wall of the clamping groove of the adjacent slide bar.

[0015] The beneficial effects of this utility model are:

[0016] 1. In use, the replacement component and the slide rod adopt a sliding fit structure. With the adjustment component, the positioning component can be quickly disassembled and installed, and it can be adapted to copper pin fin heat dissipation substrates of different sizes. The height of the positioning component can be flexibly adjusted by the adjustment component to meet the clamping requirements of different thicknesses and processing positions.

[0017] 2. When it is necessary to adjust the height of the sliding plate to fit copper fin heat dissipation substrates of different sizes, simply loosen the screw so that its end is free from the pressure restriction on the sliding rod, and the sliding plate can be slid up and down to adjust the position. The structure and operation are simple. Attached Figure Description

[0018] Figure 1 This is a perspective view of the main structure of a machining fixture with a quick-change positioning component according to the present invention.

[0019] Figure 2 This is a schematic diagram of the positioning and replacement mechanism of a machining fixture with a quick-change positioning component according to the present invention.

[0020] Figure 3 This is a schematic diagram of the replacement component structure of a machining fixture with a quick-change positioning component according to the present invention.

[0021] Figure 4 This is a schematic diagram of the adjustment component structure of a machining fixture with a quick-change positioning component according to the present invention.

[0022] The labels in the diagram represent:

[0023] 100. Base; 200. Placement platform; 300. Positioning and replacement mechanism; 310. Slide rod; 320. Replacement component; 321. Slide plate; 322. Positioning block; 323. Connecting groove; 324. Limiting hole; 325. Positioning frame; 326. Limiting plate; 327. Clamping plate; 328. Mounting block; 329. Mounting hole; 330. Adjustment component; 331. Screw; 332. Clamping groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4 A machining fixture with a quick-change positioning component includes a base 100 and a placement platform 200, the placement platform 200 being fixedly installed on the top of the base 100; a positioning replacement mechanism 300, which is disposed on the top of the base 100 for facilitating the replacement of the positioning component; wherein, the positioning replacement mechanism 300 includes two slide rods 310 fixedly installed on both sides of the top of the base 100, a replacement component 320 being disposed between the two slide rods 310 on the same side, and an adjustment component 330 being disposed between the replacement component 320 and the slide rods 310.

[0026] In this embodiment of the utility model, during use, the sliding fit structure between the replacement component 320 and the two slide rods 310 can be set so that the positioning component can be quickly disassembled and installed under the action of the adjustment component 330. This allows for the selection of a matching positioning structure according to different sizes of copper pin fin heat dissipation substrates without disassembling the slide rods 310 or the base 100 body. The height of the replacement component 320 can be quickly adjusted by adjusting the adjustment component 330. In actual processing, the vertical position of the positioning component can be flexibly set according to the thickness of different heat dissipation substrates and the processing part.

[0027] It should be noted that the actual copper pin fin heat sink substrate processing positioning fixture typically includes basic components such as a placement table 200, positioning components, clamping devices, and a base 100. The slide rods 310 on both sides of the top of the base 100 and the replacement components 320 and adjustment components 330 between them are only used to realize the quick replacement of positioning components and height adjustment. The overall structural layout does not change the installation method and position of the placement table 200, does not interfere with the functional arrangement of other clamping or limiting devices on the base 100, and the replacement components 320 remain locked in the non-replacement state, which does not affect the rigidity or positioning accuracy of the fixture, nor does it obstruct the workpiece placement and processing area.

[0028] like Figure 2 and Figure 3 As shown, in a preferred embodiment of the present invention, the replacement component 320 includes a slide plate 321 disposed on the outer side of two slide bars 310 on the same side. A connecting groove 323 is provided on the surface of the slide plate 321. A positioning block 322 is slidably installed on the outer side of the connecting groove 323. A limiting plate 326 is provided on one side of the base 100 located on the positioning block 322. One side of the positioning block 322 extends through the connecting groove 323 and has a limiting hole 324. The limiting plate 326 is located inside the limiting hole 324.

[0029] In this embodiment of the utility model, by setting the cooperation structure between the sliding plate 321 and the connecting groove 323, the positioning block 322 is precisely guided and inserted in the replacement assembly 320. With the help of the limiting plate 326, the positioning block 322 is laterally limited on both sides, effectively preventing the positioning block 322 from slipping or shifting during the clamping process. By setting the limiting hole 324 on the positioning block 322 and combining it with the insertion structure of the limiting plate 326, the limiting plate 326 can be inserted into the limiting hole 324 from top to bottom after the positioning block 322 is inserted into place, realizing quick locking without screw fastening. When replacing, only the limiting plate 326 needs to be lifted to realize the quick disassembly and assembly of the positioning block 322, which significantly improves the replacement efficiency.

[0030] Two positioning frames 325 are fixedly installed on the surface of the base 100, and the bottoms of the two limiting plates 326 are slidably connected to the two positioning frames 325 respectively.

[0031] In this embodiment of the utility model, by fixing two positioning frames 325 on the surface of the base 100 and slidingly connecting the bottoms of the two limiting plates 326 to the positioning frames 325 respectively, the limiting plates 326 can be quickly guided and connected.

[0032] Both sides of the bottom of the limiting plate 326 are fixedly installed with a clamping plate 327, and both clamping plates 327 are engaged with the inner wall of the positioning frame 325.

[0033] In this embodiment of the utility model, the two locking plates 327 are engaged with the inner wall of the positioning frame 325, which can further enhance the connection stability between the limiting plate 326 and the base 100 after the limiting plate 326 is inserted into the limiting hole 324 of the positioning block 322, and prevent the limiting plate 326 from loosening or shaking during the processing.

[0034] One side of the connecting groove 323 is set to an arc shape, and the top inner edge of the positioning frame 325 is set to a bevel shape.

[0035] In this embodiment of the utility model, by setting one side of the connecting groove 323 to an arc shape, it can play a guiding role in the process of the positioning block 322 being inserted into the connecting groove 323, so that the positioning block 322 can slide into the designated position more smoothly. By setting the top inner edge of the positioning frame 325 to a bevel shape, a guide angle can be formed in the process of the limiting plate 326 being inserted, so that it can automatically correct the insertion direction and angle, and avoid jamming or damage caused by insertion deviation.

[0036] The limiting plate 326 is T-shaped, and each of the two slide rods 310 has a mounting block 328 at its top. The top of the slide rod 310 has a mounting hole 329, and the mounting block 328 is threadedly connected to the mounting hole 329.

[0037] In this embodiment of the utility model, in actual use, if the slide plate 321 needs to be replaced or maintained, the mounting block 328 only needs to be unscrewed to release the limiting constraint at the top of the slide bar 310, so that the slide plate 321 can move up along the slide bar 310 and detach from the middle, which is convenient for quick disassembly or replacement.

[0038] like Figure 2 and Figure 4 As shown, in a preferred embodiment of the present invention, the adjustment component 330 includes a screw 331 disposed on the surface of the slide plate 321. The screw 331 passes through the slide plate 321 and is threadedly connected to the slide plate 321. One end of the screw 331 abuts against the surface of the adjacent slide rod 310.

[0039] When the height of the sliding plate 321 needs to be adjusted to fit copper fin heat dissipation substrates of different sizes, simply loosen the screw 331 so that its end is freed from the pressure restriction on the slide bar 310, and the sliding plate 321 can be slid up and down to adjust its position. The structure and operation are simple.

[0040] The surface of the slide bar 310 is provided with a clamping groove 332, and one end of the screw 331 is clamped against the inner wall of the clamping groove 332 of the adjacent slide bar 310.

[0041] In this embodiment of the utility model, by opening a clamping groove 332 on the surface of the slide bar 310 and clamping one end of the screw 331 against the inner wall of the clamping groove 332, a more reliable limiting and fixing effect can be achieved after the slide plate 321 is adjusted to the target height, by means of the surface contact positioning relationship between the screw 331 and the clamping groove 332. Compared with the ordinary cylindrical surface clamping structure, the clamping groove 332 can effectively prevent the screw 331 from slipping or loosening during vibration or long-term use, thereby improving the positioning stability of the slide plate 321 during use.

[0042] In this embodiment of the invention, during use, the copper fin heat sink substrate is placed on the placement platform 200. The positioning block 322 is laterally guided and inserted through the sliding engagement structure of the slide plate 321 and the connecting groove 323 in the replacement assembly 320. After the positioning block 322 is inserted into place, its limiting hole 324 corresponds to the limiting plate 326 on one side of the base 100. Under the guidance of the positioning frame 325, the limiting plate 326 slides downward into the limiting hole 324, completing the longitudinal locking of the positioning block 322. It is also engaged with the inner wall of the positioning frame 325 through the locking plate 327, improving the overall connection stability. If the positioning block 322 needs to be replaced, simply lift the limiting plate 326 to release the locking relationship, quickly disassemble the positioning block 322, and replace it with a positioning block 322 of other sizes and specifications to adapt to different models of heat sink substrates. When adjusting the height, the screw 331 in the adjusting component 330 can be loosened to allow the slide plate 321 to slide up and down along the slide rod 310. After the slide plate 321 is adjusted to the target height, the screw 331 is tightened so that its end abuts against the inner wall of the abutment groove 332 on the slide rod 310, thereby achieving precise positioning of the slide plate 321. The top of the slide rod 310 is threadedly connected to the mounting hole 329 via the mounting block 328. After loosening, the slide plate 321 can be moved upwards for quick disassembly and maintenance. The entire structure works in concert to achieve quick replacement of positioning components, height adjustment, and stable clamping, making it suitable for the flexible processing needs of various heat dissipation substrates.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A machining fixture with quick-change positioning components, comprising a base (100) and a placement table (200), characterized in that: The placement platform (200) is fixedly installed on the top of the base (100); A positioning replacement mechanism (300) is provided on the top of the base (100) for facilitating the replacement of the positioning component. The positioning and replacement mechanism (300) includes two slide rods (310) fixedly installed on both sides of the top of the base (100), a replacement component (320) is provided between the two slide rods (310) on the same side, and an adjustment component (330) is provided between the replacement component (320) and the slide rods (310).

2. The processing jig according to Claim 1, wherein The replacement component (320) includes a slide plate (321) disposed on the outside of two slide bars (310) on the same side. A connecting groove (323) is provided on the surface of the slide plate (321). A positioning block (322) is slidably installed on the outside of the connecting groove (323). A limiting plate (326) is provided on one side of the base (100) located on the positioning block (322). A limiting hole (324) is provided on one side of the positioning block (322) through the connecting groove (323). The limiting plate (326) is located inside the limiting hole (324).

3. The processing jig according to Claim 2, wherein Two positioning frames (325) are fixedly installed on the surface of the base (100), and the bottoms of the two limiting plates (326) are slidably connected to the two positioning frames (325) respectively.

4. The processing jig according to Claim 3, wherein Both sides of the bottom of the limiting plate (326) are fixedly installed with a locking plate (327), and both locking plates (327) are engaged with the inner wall of the positioning frame (325).

5. The machining fixture with quick-change positioning components according to claim 3, characterized in that, One side of the connecting groove (323) is set to an arc shape, and the top inner edge of the positioning frame (325) is set to a bevel shape.

6. The machining fixture with quick-change positioning components according to claim 4, characterized in that, The limiting plate (326) is T-shaped, and the top of each of the two slide rods (310) is provided with a mounting block (328). The top of the slide rod (310) is provided with a mounting hole (329), and the mounting block (328) is threadedly connected to the mounting hole (329).

7. The machining fixture with quick-change positioning components according to claim 1, characterized in that, The adjustment assembly (330) includes a screw (331) disposed on the surface of the slide plate (321), the screw (331) passing through the slide plate (321) and threadedly connected to the slide plate (321), and one end of the screw (331) abutting against the surface of the adjacent slide rod (310).

8. The machining fixture with quick-change positioning components according to claim 7, characterized in that, The slide rod (310) has a clamping groove (332) on its surface, and one end of the screw (331) abuts against the inner wall of the clamping groove (332) of the adjacent slide rod (310).

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