Special-shaped radiator multi-station machining tooling

Abstract

The utility model relates to a kind of special-shaped radiator multi-station processing tool, and several positioning tables for positioning and installing radiator are distributed in parallel along front-back direction on working platform;Several upper pressing blocks are installed along left-right direction on the working platform of the two sides of positioning table;Side limiting plate is installed on the working platform of the left side of positioning table, and side pressing block is installed on the working platform of the right side of positioning table;Radiator body is placed on positioning table along left-right direction, and the bottom of upper pressing block above radiator hook end is provided with avoiding slot for avoiding treatment to radiator hook end, and positioning table below radiator fin is provided with stepped groove for accommodating radiator fin.The utility model can realize simultaneous clamping, synchronous processing of multiple radiators by multiple positioning tables distributed in parallel, greatly improve equipment utilization and production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of radiator processing, and in particular to a multi-station processing fixture for irregularly shaped radiators. Background Technology

[0002] Irregularly shaped heat sinks, due to their typically front-to-back bent hook ends and dense fin structure at the bottom, present problems such as difficulty in clamping, unstable positioning, and easy deformation and damage during milling, drilling, and other processing.

[0003] In existing solutions, universal flat-nose pliers or simple pads are typically used for clamping, which has the following obvious shortcomings: The irregular shape of the heat sink, especially the uneven bottom fins, makes it prone to wobbling when supported only by the bottom surface. This results in inconsistent machining benchmarks and affects the machining accuracy of hole positions and other aspects.

[0004] When pressing directly downwards, the pressure can easily act on the fragile heat dissipation fins or the suspended hook ends, causing irreversible damage such as bending of the fins and deformation of the hooks.

[0005] Single-station clamping, processing one item at a time, results in long auxiliary time and cannot meet the efficiency requirements of mass production.

[0006] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a multi-station machining tooling for irregularly shaped heat sinks, making it more valuable for industrial use. Utility Model Content

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a multi-station machining fixture for irregularly shaped heat sinks.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A multi-station machining fixture for irregularly shaped heat sinks includes a work platform, on which several positioning tables for positioning and installing heat sinks are arranged side by side along the front-back direction. Several upper pressure blocks are installed on the working platforms on both the front and rear sides of the positioning table along the left and right direction. The upper pressure blocks are driven by the upper pressure cylinder to press up at least one side of the front and rear sides of the radiator below. A side limit plate is installed on the working platform on the left side of the positioning table, and a side pressure block is installed on the working platform on the right side of the positioning table. The side pressure block performs side pressure treatment on the right side of the radiator under the drive of the side pressure cylinder. The radiator includes a radiator body, with radiator hook ends bent upwards on both the front and rear sides of the radiator body, and several radiator fins on the front and rear sides of the bottom of the radiator body. The radiator body is placed on the positioning platform along the left and right direction. A clearance groove is provided at the bottom of the upper pressure block above the radiator hook end to allow the radiator hook end to be cleared. A stepped groove is provided on the positioning platform below the radiator fins to accommodate the radiator fins.

[0009] As a further improvement of this utility model, a number of positioning holes are evenly opened on the heat sink body along the left and right direction, and a positioning post that matches the positioning hole is installed on the positioning platform directly below the positioning hole.

[0010] As a further improvement of this utility model, several contact protrusions are evenly distributed on the positioning platform, and the bottom of the heat sink body contacts the contact protrusions below.

[0011] As a further improvement of this utility model, the contact protrusion is an elastic buffer structure.

[0012] As a further improvement of this utility model, the elastic buffer structure is a rubber block or a silicone block.

[0013] As a further improvement of this utility model, a workbench is installed at the bottom of the work platform, and a handle groove is provided in the middle of the front and rear sides of the workbench.

[0014] As a further improvement of this utility model, a rubber sleeve is installed inside the handle groove.

[0015] As a further improvement of this utility model, the stepped groove includes a first receiving groove and a second receiving groove from the inside to the outside. Several heat sink fins on the inner side have the same length and are located in the first receiving groove, while at least one heat sink fin on the outer side has the same length and is located in the second receiving groove.

[0016] As a further improvement of this utility model, the bottom of the heat sink fins is close to but not touching the stepped groove below.

[0017] By means of the above solution, this utility model has at least the following advantages: This invention enables multiple radiators to be clamped and processed simultaneously by multiple positioning platforms arranged in parallel, which greatly improves equipment utilization and production efficiency.

[0018] This invention achieves left and right positioning through "side limiting plate + side pressure cylinder", precise horizontal positioning through "positioning column + positioning hole", and vertical clamping through "upper pressure cylinder + upper pressure block", forming a complete and reliable constraint system for irregular workpieces, ensuring the stability and repeatability of the processing.

[0019] This utility model avoids pressure on the hook end through a unique "avoidance groove" design; the "stepped groove" design provides dedicated space for fins of different heights, avoiding interference and damage during clamping and processing; and the elastic contact protrusion avoids indentations caused by hard contact.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a multi-station machining fixture for irregularly shaped heat sinks according to this utility model; Figure 2 yes Figure 1 A schematic diagram of the structure after removing one of the heat sinks; Figure 3 yes Figure 2 The main view; Figure 4 yes Figure 2 A partially enlarged structural diagram of the upper and middle pressure blocks, positioning platform, and heat sink.

[0023] The meanings of the labels in the figures are as follows.

[0024] 1. Working platform; 2. Positioning platform; 3. Radiator; 4. Upper pressure block; 5. Side limiting plate; 6. Side pressure cylinder; 7. Side pressure block; 8. Positioning hole; 9. Contact protrusion; 10. Positioning post; 11. Workbench frame; 12. Handle groove; 13. Upper pressure cylinder; 14. Alternating groove; 15. Step groove; 16. Radiator body; 17. Radiator hook end; 18. Radiator fins. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] The first embodiment of this utility model: like Figures 1-4 As shown, a multi-station machining fixture for irregularly shaped heat sinks in this embodiment includes a work platform 1. Several positioning platforms 2 for positioning and installing heat sinks 3 are arranged side by side along the front-back direction on the work platform 1.

[0028] In order to press the workpiece from the front and back, several upper pressing blocks 4 are installed on the working platforms 1 on both the front and back sides of the positioning table 2 along the left and right directions. The upper pressing blocks 4 are driven by the corresponding upper pressing cylinders 13, and can move downward to press and fix the front and back sides of the radiator 3 placed on the positioning table 2.

[0029] To limit and clamp the workpiece from the left and right directions, a side limiting plate 5 is fixedly installed on the working platform 1 on the left side of the positioning table 2 as a fixed reference surface; a side pressing block 7 is installed on the working platform 1 on the right side of the positioning table 2. The side pressing block 7 is driven by the side pressing cylinder 6 and can move to the left to press the right side of the radiator 3 laterally, so that its left side is tightly attached to the side limiting plate 5.

[0030] The radiator 3 includes a radiator body 16, with upward-bent radiator hook ends 17 on both the front and rear sides of the radiator body 16, and several downward-extending radiator fins 18 on the front and rear sides of the bottom of the body. During installation, the radiator body 16 is placed horizontally on the positioning platform 2 with its length direction being the left-right direction.

[0031] To prevent damage to the upwardly bent radiator hook end 17, a relief groove 14 matching the shape of the hook end is specially provided at the bottom of the upper pressure block 4 located directly above the hook end. When the upper pressure block 4 is pressed down, the relief groove 14 can fully accommodate the hook end, ensuring that the clamping force is applied to the more solid main body part below the hook end.

[0032] To accommodate and protect the radiator fins 18 of varying heights and prevent interference or collision with the tooling, a downwardly recessed stepped groove 15 is provided on the positioning platform 2 directly below the radiator fins 18. Specifically, the stepped groove 15, from the inner side near the radiator body 16 to the outer side, includes a first receiving groove and a second receiving groove in sequence; wherein, several shorter radiator fins 18 located on the inner side are accommodated in the first receiving groove, while at least one longer radiator fin 18 located on the outer side is accommodated in the deeper second receiving groove. A small safety gap is maintained between the bottom of all radiator fins 18 and the bottom of the stepped groove 15, i.e., "close but not in contact," which provides sufficient clearance for the fins and ensures that the radiator body is stably supported by other support points.

[0033] To achieve precise positioning of the radiator in the horizontal plane and prevent it from moving during processing, a plurality of positioning holes 8 are evenly provided on the radiator body 16 along the left-right direction. At the same time, a positioning post 10, which is adapted to the shape and size of the positioning hole 8, is installed on the positioning platform 2 directly below the positioning hole 8. By fitting the positioning hole 8 into the positioning post 10, fast and accurate pre-positioning is achieved.

[0034] To stably support the flat bottom area of ​​the radiator body 16 and provide cushioning, a plurality of contact protrusions 9 are evenly distributed on the upper surface of the positioning platform 2, and the bottom of the radiator body 16 is directly supported on these contact protrusions 9. Furthermore, the contact protrusions 9 are elastic cushioning structures, preferably rubber blocks or silicone blocks, to absorb the impact force during clamping and prevent damage to the workpiece surface.

[0035] To facilitate the handling and movement of the tooling, a workbench frame 11 is fixedly installed at the bottom of the work platform 1. A handle groove 12 for easy hand gripping is provided on the center of both the front and rear sides of the workbench frame 11. To improve operating comfort and anti-slip effect, a rubber sleeve can be nested inside the handle groove 12.

[0036] The second embodiment of this utility model: like Figures 1-4 As shown in the figure, this embodiment provides a multi-station machining fixture for irregularly shaped heat sinks, which can realize the rapid, accurate, and simultaneous positioning and clamping of multiple irregularly shaped heat sinks, and effectively protect the hook end and fin structure of the heat sink during the clamping process, thereby improving machining accuracy and production efficiency.

[0037] The fixture includes a rectangular work platform 1, which is supported by a workbench frame 11 welded to the bottom. A handle groove 12 for embedding a rubber sleeve is machined into the center of each of the front and rear sides of the workbench frame 11 for easy handling. Three identical positioning platforms 2 are fixed side-by-side along the front-rear direction on the surface of the work platform 1.

[0038] Each positioning platform 2 has six cylindrical silicone blocks evenly mounted on its upper surface as contact protrusions 9 using countersunk screws. At specific locations on the upper surface of the positioning platform 2, two round-headed positioning posts 10 are vertically fixed, matching the positioning holes 8 on the bottom surface of the heat sink 3 to be processed. A stepped groove 15 is machined in the central area of ​​the positioning platform 2, comprising a shallower first receiving groove and a deeper second receiving groove.

[0039] On the left side of the three positioning platforms 2, a long strip-shaped side limiting plate 5 is fixed to the work platform 1 with bolts, and its inner side serves as the reference surface for positioning the left end of all the radiators 3. On the right side of the positioning platform 2, a side pressure cylinder 6 is installed for each workstation, and a side pressure block 7 is connected to the end of its piston rod. The side pressure block 7 can move left and right under the drive of the side pressure cylinder 6.

[0040] Two upper pressure cylinders 13 are installed on each of the front and rear sides of the positioning platform 2 on the working platform 1. The piston rod of each upper pressure cylinder 13 is connected downward to an upper pressure block 4. The upper pressure block 4, located directly above the radiator hook end 17, has a relief groove 14 machined on its bottom surface that matches the shape of the hook end 17.

[0041] The working process of this embodiment: Loading and Pre-positioning: The operator places the three radiators 3 sequentially onto the three positioning platforms 2. During placement, the two positioning holes 8 on the bottom of the radiator body 16 are aligned and fitted into the two positioning posts 10 on the positioning platform 2, while ensuring that all radiator fins 18 fall into the corresponding first or second receiving slot of the stepped groove 15. The flat bottom of the radiator body 16 is supported by six silicone contact protrusions 9. The left end face of the radiator 3 is pressed against the common side limiting plate 5.

[0042] Lateral clamping: Activate the side pressure cylinder 6 to push the side pressure blocks 7 of the three stations to move to the left in sync, pressing the three radiators 3 onto the side limit plate 5 from the right side, thus completing the precise positioning and clamping in the left and right directions.

[0043] Vertical clamping: Four sets of upper pressure cylinders 13 (one set at the front and one at the back of each workstation) are activated to drive all upper pressure blocks 4 to descend synchronously. When the upper pressure block 4 with the relief groove 14 falls, its relief groove 14 just covers the radiator hook end 17, while the actual clamping surface of the pressure block presses on the solid upper surface of the radiator body 16 below the hook end 17. The upper pressure blocks 4 on both the front and rear sides work together to vertically clamp the radiator 3 onto the positioning platform 2.

[0044] Machining: At this point, the three radiators 3 are reliably constrained in multiple degrees of freedom, including left-right and up-down, and their hook ends and fins are effectively protected. Subsequent machining operations such as milling and drilling can then be performed.

[0045] Release and unloading: After processing, the upper pressure cylinder 13 and the side pressure cylinder 6 retract sequentially, releasing all the pressure blocks. The operator can then remove the processed radiator 3 vertically upward from the positioning table 2, completing one work cycle.

[0046] This embodiment achieves safe, efficient, and high-precision batch clamping of irregularly shaped heat sinks through multi-station layout, cylinder linkage clamping, and avoidance and accommodation design for irregular structures, and has good practical value.

[0047] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-station machining fixture for irregularly shaped radiators, comprising a work platform (1), wherein a plurality of positioning tables (2) for positioning and installing radiators (3) are arranged in parallel along the front-back direction on the work platform (1). Its features are: Several upper pressure blocks (4) are installed on the working platforms (1) on both sides of the positioning platform (2) along the left and right direction. The upper pressure blocks (4) are driven by the upper pressure cylinder (13) to press up at least one side of the radiator (3) below. A side limiting plate (5) is installed on the working platform (1) on the left side of the positioning platform (2), and a side pressing block (7) is installed on the working platform (1) on the right side of the positioning platform (2). The side pressing block (7) performs side pressing on the right side of the radiator (3) under the drive of the side pressing cylinder (6). The radiator (3) includes a radiator body (16), and radiator hook ends (17) bent upwards are provided on both the front and rear sides of the radiator body (16). Several radiator fins (18) are provided on the front and rear sides of the bottom of the radiator body (16). The radiator body (16) is placed on the positioning platform (2) in the left-right direction. A clearance groove (14) is provided at the bottom of the upper pressure block (4) above the radiator hook end (17) to avoid the radiator hook end (17). A stepped groove (15) for accommodating the radiator fins (18) is provided on the positioning platform (2) below the radiator fins (18).

2. The multi-station machining fixture for irregularly shaped heat sinks as described in claim 1, characterized in that, A number of positioning holes (8) are evenly provided on the radiator body (16) along the left and right direction. Positioning pins (10) that are compatible with the positioning holes (8) are installed on the positioning platform (2) directly below the positioning holes (8).

3. The multi-station machining fixture for irregularly shaped heat sinks as described in claim 1, characterized in that, Several contact protrusions (9) are evenly distributed on the positioning platform (2), and the bottom of the radiator body (16) is in contact with the contact protrusions (9) below.

4. The multi-station machining fixture for irregularly shaped heat sinks as described in claim 3, characterized in that, The contact protrusion (9) is an elastic buffer structure.

5. The multi-station machining fixture for irregularly shaped heat sinks as described in claim 4, characterized in that, The elastic buffer structure is a rubber block or a silicone block.

6. The multi-station machining fixture for irregularly shaped heat sinks as described in claim 1, characterized in that, A workbench frame (11) is installed at the bottom of the work platform (1), and a handle groove (12) is provided in the middle of the front and rear sides of the workbench frame (11).

7. The multi-station machining fixture for irregularly shaped heat sinks as described in claim 6, characterized in that, A rubber sleeve is installed in the handle groove (12).

8. The multi-station machining fixture for irregularly shaped heat sinks as described in claim 1, characterized in that, The stepped groove (15) includes a first receiving groove and a second receiving groove from the inside to the outside. Several heat sink fins (18) located on the inner side have the same length and are located in the first receiving groove, while at least one heat sink fin (18) located on the outer side has the same length and is located in the second receiving groove.

9. The multi-station machining fixture for irregularly shaped heat sinks as described in claim 1, characterized in that, The bottom of the radiator fins (18) is close to but not close to the stepped groove (15) below.

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