A four-axis pneumatic jig for radiator processing

CN224896407UActive Publication Date: 2026-10-27JIANGSU JUNLI PRECISION MFG TECH CO LTD
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Patent Information

Application Number
CN202522584792.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-04
Publication Date
2026-10-27
Estimated Expiration
2035-12-04

AI Technical Summary

Technical Problem

然而,激光灯散热器主体零件因底部的下凸起与下槽孔的凹凸交错、顶部上凸起的异形结构,传统加工治具难以适配复杂外形:如采用单纯平面夹持时,主体零件的上凸起与下凸起会导致治具支撑点悬空,无法形成稳定的支撑面,且会干扰顶部钻孔、攻丝的加工操作,夹持力易集中在凸起部位,导致主体零件受力不均产生形变

Benefits of technology

1.通过设置底座、盖板、定位槽、让位槽、让位孔、避让孔,定位槽与主体零件底部适配形成下支撑,让位槽容纳下凸起避免干涉,盖板下表面与主体零件顶部待加工表面抵接形成上支撑,让位孔容纳上凸起避免干涉,避让孔预留加工空间,以此可靠固定激光灯散热器主体零件,保证主体零件在机床中进行钻孔、攻丝加工的稳定性;

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Abstract

The application relates to a four-axis pneumatic jig for radiator machining, and relates to the technical field of laser lamp radiator machining.The four-axis pneumatic jig comprises a base and a cover plate located above the base, the cover plate is in sliding connection with the base in the direction close to or away from the base, the upper surface of the base is provided with a positioning groove, the positioning groove is matched with the bottom of a main part, a gap groove is formed in the bottom wall of the positioning groove, the gap groove is used for extending into the lower protrusion of the main part, the lower surface of the cover plate is used for abutting against the surface to be machined on the top of the main part, a gap hole is formed in the cover plate, the gap hole is used for extending into the upper protrusion of the main part, and an avoiding hole is formed in the cover plate in a penetrating mode, the avoiding hole is used for avoiding the machining position on the surface to be machined on the top of the main part.The application has the effects of reliably fixing the main part of the laser lamp radiator, and guaranteeing the stability of the main part in drilling and tapping machining in a machine tool.
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Description

Technical Field

[0001] This application relates to the field of laser lamp heat sink processing technology, and in particular to a four-axis pneumatic fixture for heat sink processing. Background Technology

[0002] Laser lamp heat sinks are critical heat dissipation components in laser lamp equipment. They are primarily used to dissipate the high heat generated during laser module operation, preventing core components from experiencing performance degradation, shortened lifespan, or even burnout due to prolonged high-temperature operation. To accommodate the compact internal installation space of laser lamps and improve heat dissipation efficiency, the main components of laser lamp heat sinks are often designed with non-standard, irregular shapes. In related technologies, a laser lamp heat sink main body part is designed, which has a downwardly extending lower protrusion formed at the bottom and a lower slot hole opened at the bottom, and an upwardly extending strip-shaped upper protrusion formed at the top; in order to achieve a stable assembly with accessories such as laser lamp housing and module bracket, the top and front and rear side walls of the heat sink main body part need to be drilled and tapped in a machine tool. However, due to the irregular shape of the bottom protrusion and the groove hole, as well as the top protrusion, the main body of the laser lamp heat sink is difficult for traditional machining fixtures to adapt to its complex shape. If a simple flat clamping method is used, the top and bottom protrusions of the main body will cause the fixture support point to be suspended, which will not form a stable support surface and will interfere with the top drilling and tapping operations. The clamping force is easily concentrated on the protruding parts, resulting in uneven force on the main body and deformation. Utility Model Content

[0003] In order to reliably fix the main body of the laser lamp heat sink and ensure the stability of the main body during drilling and tapping on the machine tool, this application provides a four-axis pneumatic fixture for heat sink processing.

[0004] The four-axis pneumatic fixture for radiator processing provided in this application adopts the following technical solution: A four-axis pneumatic fixture for radiator machining includes a base and a cover plate located above the base. The cover plate is slidably connected to the base in a direction close to or away from the base. A positioning groove is formed on the upper surface of the base, which is adapted to the bottom of the main part. A clearance groove is formed on the bottom wall of the positioning groove, which is used for the lower protrusion of the main part to extend into. The lower surface of the cover plate is used to abut against the surface to be machined on the top of the main part. A clearance hole is formed on the cover plate, which is used for the upper protrusion of the main part to extend into. An avoidance hole is formed through the cover plate, which is used to avoid machining positions on the surface to be machined on the top of the main part.

[0005] By adopting the above technical solution, the bottom wall of the positioning groove fits against the bottom of the main part and forms a support, while the clearance groove accommodates the lower protrusion of the main part, avoiding interference between the lower protrusion and the base. This ensures that the bottom of the main part is completely embedded in the positioning groove and fits against the bottom wall of the positioning groove, forming a stable and reliable lower support surface for the bottom of the main part. The positioning groove also provides positional constraints for the installation of the main part, making it easier to determine the installation position of the main part on the base. When the cover plate is pressed down near the base, the lower surface of the cover plate makes surface contact with the top surface of the main part to be processed, forming a stable and reliable upper support surface for the top of the main part. The clearance hole accommodates the upper protrusion of the main part, preventing interference between the upper protrusion and the cover plate and thus compromising clamping stability. The clearance hole provides operating space for drilling and tapping at the top, eliminating interference from the fixture during the processing. In this way, the main part of the laser lamp heat sink is reliably fixed, ensuring the stability of the main part during drilling and tapping on the machine tool.

[0006] Preferably, a guide rod is fixedly installed on the base, and a guide hole is provided through the cover plate. The guide rod extends into the guide hole and slides in cooperation with the guide hole.

[0007] By adopting the above technical solution, the sliding cooperation between the guide rod and the guide hole constrains the lifting and sliding trajectory of the cover plate, preventing the cover plate from shifting when it approaches or moves away from the base, ensuring that the cover plate and the top surface to be processed of the main body part are accurately aligned, avoiding clamping misalignment caused by cover plate offset, and further improving clamping stability and processing position accuracy.

[0008] Preferably, a cylinder is fixedly installed on the base, and the cylinder is used to drive the cover plate to slide.

[0009] By adopting the above technical solution, the cover plate is slidable by a cylinder, replacing the traditional manual clamping method. This makes it easy to achieve automated control of the clamping process, saves labor costs, and the cylinder moves quickly, which helps to shorten the time for disassembling and installing the main parts and improves processing efficiency.

[0010] Preferably, the output end of the cylinder is rotatably provided with a connecting rod, the top end of the connecting rod is fixedly connected to the cover plate, and the guide hole can be disengaged from the top of the guide rod.

[0011] By adopting the above technical solution, after long-term use, machining waste will accumulate in the positioning groove, clearance groove, clearance hole, and avoidance hole of the fixture, which is difficult to clean. This waste can easily cause wear to the main parts. When it is necessary to clean the waste, the cylinder extends outward and the length of the extended outward output end is extended, so that the guide hole disengages from the top of the guide rod. At this time, the cover plate loses the constraint of directional sliding and can rotate around the rotating part of the connecting rod and the cylinder output end, thereby opening the space between the cover plate and the base, which facilitates the use of cleaning tools such as air guns and brushes, and provides sufficient space for cleaning the fixture.

[0012] Preferably, the bottom of the cover plate is provided with an assembly groove, the connecting rod extends into the assembly groove and abuts against the assembly groove, and the connecting rod and the assembly groove are connected by a detachable structure.

[0013] By adopting the above technical solution, the assembly groove positions the connection between the connecting rod and the cover plate, ensuring the coaxiality of the connecting rod and the cover plate and improving the connection stability; the detachable connection structure allows the cover plate to be replaced, facilitating maintenance after the cover plate is worn or damaged, increasing the service life of the fixture and reducing maintenance costs.

[0014] Preferably, the positioning grooves are provided at intervals along the length of the base.

[0015] By adopting the above technical solution, multiple spaced positioning slots can achieve multi-station synchronous clamping, enabling the simultaneous positioning and fixing of multiple main parts. This allows the machine tool to complete the processing of multiple main parts at once, significantly shortening the total cycle of batch processing compared to processing a single main part at a time, improving production efficiency, and adapting to the needs of large-scale batch production.

[0016] Preferably, a positioning protrusion is integrally provided on the bottom wall of the positioning groove, and the positioning protrusion is adapted to the lower groove hole of the main body part.

[0017] By adopting the above technical solution, the matching of the positioning protrusion with the lower slot of the main body part enables secondary positioning of the main body part on the basis of the positioning slot support, further limiting the positioning accuracy of the main body part, ensuring the positional accuracy of drilling and tapping, and reducing processing errors.

[0018] Preferably, the top edges of the positioning groove, the clearance groove, and the positioning protrusion are all rounded.

[0019] By adopting the above technical solution, the rounded corner structure can prevent the sharp edges of the positioning groove, clearance groove, and positioning protrusion from scratching the surface of the main part when it is installed or removed, thus protecting the appearance integrity and structural safety of the main part. At the same time, the rounded corners play a guiding role, reducing the resistance when the main part is installed into the positioning groove, making it easier for the main part to be quickly and accurately positioned, and improving the convenience of assembly operations.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a base, cover plate, positioning groove, clearance groove, clearance hole, and avoidance hole, the positioning groove adapts to the bottom of the main body part to form a lower support, the clearance groove accommodates the lower protrusion to avoid interference, the lower surface of the cover plate abuts against the top surface of the main body part to be machined to form an upper support, the clearance hole accommodates the upper protrusion to avoid interference, and the avoidance hole reserves machining space, thereby reliably fixing the main body part of the laser lamp heat sink and ensuring the stability of the main body part during drilling and tapping on the machine tool; 2. By setting guide rods, guide holes, and cylinders, the sliding cooperation of the guide rods and guide holes constrains the lifting and sliding trajectory of the cover plate, preventing the cover plate from shifting when it approaches or moves away from the base, ensuring that the cover plate and the top surface to be processed of the main body part are accurately aligned. The cover plate is driven to slide by the cylinder, replacing the traditional manual clamping method, which makes it easy to realize the automated control of the clamping process. 3. By setting a connecting rod and an assembly slot, the connecting rod is rotatably connected to the cylinder output end. With the help of the guide hole, the guide rod can be disengaged, which makes it easy to rotate the cover plate to open the space between the cover plate and the base, making it easy to clean up waste and avoid wear on the main parts. The assembly slot positions the connection between the connecting rod and the cover plate to ensure coaxiality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a four-axis pneumatic fixture for radiator processing provided in the embodiments of this application.

[0022] Figure 2 This is an exploded structural diagram of a four-axis pneumatic fixture for radiator processing provided in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Base; 11. Positioning groove; 12. Clearance groove; 13. Guide rod; 14. Cylinder; 15. Positioning protrusion; 16. Rounded corner; 2. Cover plate; 21. Clearance hole; 22. Avoidance hole; 23. Guide hole; 24. Connecting rod; 25. Assembly groove; 3. Main body part; 31. Upper protrusion; 32. Lower protrusion; 33. Lower groove hole. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0025] This application discloses a four-axis pneumatic fixture for radiator machining. (Refer to...) Figure 1It includes a base 1 and a cover plate 2 located above the base 1. The base 1 has mounting slots at both ends in the length direction for assembly and connection with a machine tool. During machine processing, the machine tool can drive the base 1 to slide along three axes in the length, width and height directions, and can also drive the base 1 to rotate around a single horizontal axis, wherein the horizontal axis is an axis parallel to the length direction.

[0026] Reference Figure 1 The upper surface of the base 1 has several positioning grooves 11, all of which are evenly spaced along the length direction. The positioning grooves 11 are adapted to the bottom of the main body part 3: the bottom wall of the positioning groove 11 is used to fit against the lower bottom plane of the main body part 3, and the side wall of the positioning groove 11 fits against the bottom side wall of the main body part 3. In this embodiment, three positioning grooves 11 are evenly spaced along the length direction, thereby simultaneously positioning and clamping three main body parts 3.

[0027] Reference Figure 1 The bottom wall of the positioning groove 11 is provided with a clearance groove 12, which is used for the lower protrusion 32 of the main body part 3 to extend into, and the clearance groove 12 does not contact the lower protrusion 32 of the main body part 3. A positioning protrusion 15 is integrally provided on the bottom wall of the positioning groove 11, and the positioning protrusion 15 is adapted to the lower slot hole 33 of the main body part 3: the side wall of the positioning protrusion 15 fits against the side wall of the lower slot hole 33 of the main body part 3. The top edges of the positioning groove 11, the clearance groove 12, and the positioning protrusion 15 are all rounded 16.

[0028] Reference Figure 1 and Figure 2 The cover plate 2 is slidably connected to the base 1 along the direction of proximity to or distance from the base 1 (i.e., the height direction). Specifically, the upper surface of the base 1 is integrally formed with an upwardly extending guide rod 13, and the cover plate 2 has a guide hole 23 extending through it along the height direction. The guide rod 13 extends into the guide hole 23 and slides in cooperation with the guide hole 23. The guide hole 23 can disengage from the guide rod 13 from the top of the guide rod 13.

[0029] Reference Figure 1 and Figure 2 The lower surface of the cover plate 2 is designed to fit and abut against the surface to be machined on the top of the main body part 3. A clearance hole 21 is provided through the cover plate 2 along its height direction, allowing the upper protrusion 31 of the main body part 3 to extend into it, without contacting the upper protrusion 31. A clearance hole 22 is also provided through the cover plate 2 along its height direction, allowing clearance from machining positions on the surface to be machined on the top of the main body part 3.

[0030] To achieve the sliding drive of cover plate 2, refer to Figure 1 and Figure 2A cylinder 14 is bolted to the bottom of the base 1. The output end of the cylinder 14 is connected to the cover plate 2 and is used to drive the cover plate 2 to slide. When the output end of the cylinder 14 extends slightly outward, it drives the cover plate 2 away from the base 1 (during this process, the guide hole 23 on the cover plate 2 does not pass the top of the guide rod 13), thereby releasing the main body part 3. When the output end of the cylinder 14 retracts inward, it drives the cover plate 2 closer to the base 1, and the cover plate 2 and the base 1 together clamp the main body part 3.

[0031] After prolonged use, machining debris will accumulate in the positioning groove 11, clearance groove 12, clearance hole 21, and avoidance hole 22 of the fixture, making it difficult to clean. This debris can easily cause wear to the main body part 3. To provide sufficient operating space for cleaning the debris on the fixture, refer to... Figure 1 and Figure 2 The output end of cylinder 14 passes through base 1 and extends from the upper surface of base 1. A connecting rod 24 is provided on the output end of cylinder 14. The bottom end of the connecting rod 24 is rotatably connected to the output end of cylinder 14, and the axis of rotation is parallel to the length direction. The top end of the connecting rod 24 is fixedly connected to cover plate 2. Specifically, the bottom of cover plate 2 has an assembly groove 25. The connecting rod 24 extends into the assembly groove 25 and abuts against the assembly groove 25. The connecting rod 24 and the assembly groove 25 are connected by a detachable structure. In this embodiment, the connecting rod 24 and the assembly groove 25 are connected by bolts.

[0032] Reference Figure 1 and Figure 2 When debris removal is required, the cylinder 14 extends its output end significantly, causing the guide hole 23 on the cover plate 2 to pass over the top of the guide rod 13. The guide hole 23 disengages from the top of the guide rod 13, and the cover plate 2 loses its directional sliding constraint, allowing it to rotate around the rotating part of the connecting rod 24 and the output end of the cylinder 14. This causes the cover plate 2 and the base 1 to no longer be directly aligned, freeing up space between the cover plate 2 and the base 1, facilitating the use of cleaning tools such as air guns and brushes, and providing ample space for cleaning fixtures. Reassembly is simple: just align the guide hole 23 with the guide rod 13 and slowly retract the output end of the cylinder 14; no complicated assembly or disassembly process is required.

[0033] The implementation principle of a four-axis pneumatic fixture for radiator processing according to an embodiment of this application is as follows: The bottom of the main body part 3 of the laser lamp radiator is aligned with the positioning groove 11 of the base 1 and inserted. The bottom wall of the positioning groove 11 fits against the lower plane of the main body part 3 and forms a support, while the clearance groove 12 accommodates the lower protrusion 32 of the main body part 3, avoiding interference between the lower protrusion 32 and the base 1, ensuring that the bottom of the main body part 3 is completely embedded in the positioning groove 11, and the positioning groove 11 provides positional constraints for the installation of the main body part 3. Then, the control cylinder 14 retracts its output end, and the cylinder 14 pulls down the cover plate 2 through the connecting rod 24. The cover plate 2 approaches the base 1, and the lower surface of the cover plate 2 makes surface contact with the top surface of the main body part 3 to be processed, while the clearance hole 21 accommodates the upper protrusion 31 of the main body part 3, preventing interference between the upper protrusion 31 and the cover plate 2. When drilling and tapping the top of the main body part 3 on the machine tool, the clearance hole 22 provides space for the drill bit and other tools on the machine tool to contact the top of the main body part 3, eliminating the interference of the fixture on the machining process. This reliably fixes the main body part 3 of the laser lamp heat sink, ensuring the stability of the main body part 3 during drilling and tapping on the machine tool.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A four-axis pneumatic fixture for radiator machining, characterized in that: The device includes a base (1) and a cover plate (2) located above the base (1). The cover plate (2) is slidably connected to the base (1) in a direction close to or away from the base (1). The upper surface of the base (1) is provided with a positioning groove (11). The positioning groove (11) is adapted to the bottom of the main body part (3). The bottom wall of the positioning groove (11) is provided with a clearance groove (12). The clearance groove (12) is used for the lower protrusion (32) of the main body part (3) to extend into. The lower surface of the cover plate (2) is used to abut against the surface to be processed on the top of the main body part (3). The cover plate (2) is provided with a clearance hole (21). The clearance hole (21) is used for the upper protrusion (31) of the main body part (3) to extend into. The cover plate (2) is provided with a through hole (22). The through hole (22) is used to avoid the processing position on the surface to be processed on the top of the main body part (3).

2. A four-axis pneumatic fixture for radiator processing according to claim 1, characterized in that: A guide rod (13) is fixedly installed on the base (1), and a guide hole (23) is provided through the cover plate (2). The guide rod (13) extends into the guide hole (23) and slides in cooperation with the guide hole (23).

3. A four-axis pneumatic fixture for radiator processing according to claim 2, characterized in that: A cylinder (14) is fixedly installed on the base (1), and the cylinder (14) is used to drive the cover plate (2) to slide.

4. A four-axis pneumatic fixture for radiator processing according to claim 3, characterized in that: The output end of the cylinder (14) is rotatably provided with a connecting rod (24), the top end of the connecting rod (24) is fixedly connected to the cover plate (2), and the guide hole (23) can be disengaged from the top of the guide rod (13).

5. A four-axis pneumatic fixture for radiator processing according to claim 4, characterized in that: The bottom of the cover plate (2) is provided with an assembly groove (25), the connecting rod (24) extends into the assembly groove (25) and abuts against the assembly groove (25), and the connecting rod (24) and the assembly groove (25) are connected by a detachable structure.

6. A four-axis pneumatic fixture for radiator processing according to claim 1, characterized in that: The positioning groove (11) is provided at intervals along the length of the base (1).

7. A four-axis pneumatic fixture for radiator processing according to claim 1, characterized in that: The bottom wall of the positioning groove (11) is integrally provided with a positioning protrusion (15), which is adapted to the lower groove hole (33) of the main body part (3).

8. A four-axis pneumatic fixture for radiator processing according to claim 7, characterized in that: The top edges of the positioning groove (11), the clearance groove (12), and the positioning protrusion (15) are all rounded (16).