Aluminum alloy special-shaped part machining clamp
By designing a machining fixture for aluminum alloy irregular parts that combines a clamping hydraulic rod and a V-shaped clamping seat with a positioning mandrel, the problem of low precision in drilling irregular parts was solved, achieving high-precision positioning and stable clamping, and improving machining efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-31
AI Technical Summary
In the existing technology, when drilling aluminum alloy irregular parts, the large height difference leads to insufficient rigidity of the drill bit, resulting in low machining accuracy. Furthermore, the clamping and fixing method cannot effectively position the parts, affecting the machining accuracy.
A machining fixture for aluminum alloy irregular parts was designed. It uses a clamping hydraulic rod and a V-shaped clamping seat to position the irregular parts. Combined with the cooperation between the positioning mandrel and the main mating hole, it ensures the straightness and accuracy of the clamping process. The height of the support base plate can be adjusted to accommodate parts of different specifications.
It achieves high-precision positioning and stable clamping of irregularly shaped parts, improves the accuracy and efficiency of drilling, simplifies the operation process, and adapts to the processing needs of parts of different specifications.
Smart Images
Figure CN224059298U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of fixtures for machining irregularly shaped parts, specifically, it relates to a fixture for machining irregularly shaped aluminum alloy parts. Background Technology
[0002] Aluminum alloy irregular-shaped parts refer to aluminum alloy parts with complex and irregular shapes, typically possessing non-standard geometries and dimensions. They may include various complex curves, angles, and connection methods, such as bending and welding. These parts are commonly used in industrial applications requiring special shapes and functions, such as aerospace, automotive manufacturing, and machinery manufacturing. The manufacturing process for aluminum alloy irregular-shaped parts includes roughing and finishing, and sometimes aging treatment is required to release internal stress, ensuring product accuracy and preventing deformation. Common manufacturing processes include turning, milling, head removal, thread cutting, and slot milling. For irregularly shaped parts with significant height differences, machining holes on different planes presents challenges. Standard drill bits are often insufficient in length to reach the lower plane, necessitating the use of custom-made extended drill bits. However, these extended bits have lower rigidity, causing vibrations during drilling and affecting accuracy. Furthermore, due to the part's unique structure, drilling typically involves clamping and fixing the parts. Since the drilling locations are numerous and dispersed, the clamping position can interfere with drilling. Therefore, after drilling some areas, the clamping position needs adjustment, requiring separate machining operations. The clamping and fixing method cannot effectively position irregularly shaped parts; thus, alignment is necessary during drilling to ensure machining accuracy.
[0003] In view of this, this utility model is hereby proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a machining fixture for aluminum alloy irregular-shaped parts. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:
[0005] A fixture for machining irregularly shaped aluminum alloy parts includes an upper support plate and a fixture base plate. A support plate is provided between the upper support plate and the fixture base plate. A support seat is fixedly provided at one end of the upper support plate, and a clamping hydraulic rod is fixedly installed on the support seat. A clamping seat is provided at the telescopic end of the clamping hydraulic rod. A support seat is fixedly provided at the other end of the upper support plate, and a clamping hydraulic rod is fixedly installed on the support seat. A clamping seat is provided at the telescopic end of the clamping hydraulic rod. An irregularly shaped part body is provided between the clamping seats and the clamping seats. A support base plate is provided below the irregularly shaped part body. A positioning mandrel is provided on the support base plate. The lower part of the support base plate is connected to the telescopic rod of the lifting hydraulic rod. The lifting hydraulic rod is fixedly installed on the bottom surface of the upper support plate. Two positioning mandrels are provided, and the positioning mandrels are used to cooperate with the holes on the irregularly shaped part body.
[0006] As a further embodiment of this utility model: the main body of the irregular part is provided with an upper machining surface and a lower machining surface, and a main mating hole is provided on both the upper machining surface and the lower machining surface. The two positioning mandrels are respectively adapted to the main mating holes on the upper machining surface and the lower machining surface to ensure effective positioning of the main body of the irregular part.
[0007] As a further improvement of this utility model, the upper end of the positioning mandrel is provided with a mating guide cone surface, which facilitates the quick installation and mating of the positioning mandrel with the corresponding main mating hole.
[0008] As a further improvement of this utility model: both the first support and the second support are U-shaped frame structures, and reinforcing ribs are fixedly provided on the inner side of both the first support and the second support to improve the stability of the structure of the first support and the second support.
[0009] As a further improvement of this utility model: a hydraulic box is provided on the clamp base plate at the side of the lifting hydraulic rod, and fixing holes are provided on the clamp base plate near the four corners. The hydraulic box is provided with hydraulic components that match the hydraulic rod to ensure the realization of the hydraulic rod's function.
[0010] As a further improvement of this utility model: protective pads are provided on the clamping surfaces of clamping seat one and clamping seat two. The protective pads are made of zinc alloy, which has a lower hardness than aluminum alloy, and are used to protect the clamping position of the irregularly shaped part.
[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.
[0012] This utility model is equipped with a clamping seat 1 and a clamping seat 2. In view of the special structure of the main body of the irregular part, the clamping seats are used to clamp and fix the outer cylindrical surfaces at both ends of the main body of the irregular part. Both clamping seats 1 and clamping seats 2 are V-shaped structures. During the clamping process, the outer circle is used as a reference for positioning to ensure the straightness of the clamping process of the irregular part.
[0013] This utility model provides a support base plate below the main body of the irregular part, and a positioning mandrel is provided on the support base plate. The positioning mandrel is used to cooperate with the main mating hole on the main body of the irregular part for positioning, which further ensures the clamping and fixing accuracy of the irregular part. The clamping process is simple to operate, and the height of the support base plate can be adjusted to meet the drilling and processing needs of irregular parts of the same model but different specifications.
[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is the front view of the present invention;
[0018] Figure 3 This is a schematic diagram of the clamping device for irregularly shaped parts according to the present invention.
[0019] In the diagram: 1. Upper support plate; 2. Fixture base plate; 3. Support seat one; 4. Clamping hydraulic rod one; 5. Clamping seat one; 6. Irregular part body; 7. Upper machined surface; 8. Lower machined surface; 9. Support base plate; 10. Positioning mandrel; 11. Clamping seat two; 12. Clamping hydraulic rod two; 13. Support seat two; 14. Lifting hydraulic rod; 15. Hydraulic housing; 16. Fixing hole; 17. Matching guide cone surface; 18. Support upright plate; 19. Reinforcing rib; 20. Protective pad.
[0020] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0022] like Figures 1 to 3 As shown, a jig for machining irregularly shaped aluminum alloy parts includes an upper support plate 1 and a jig base plate 2. A support plate 18 is provided between the upper support plate 1 and the jig base plate 2. A support seat 3 is fixedly provided at one end of the upper support plate 1, and a clamping hydraulic rod 4 is fixedly installed on the support seat 3. A clamping seat 5 is provided at the telescopic end of the clamping hydraulic rod 4. A support seat 2 13 is fixedly provided at the other end of the upper support plate 1, and a clamping hydraulic rod 2 12 is fixedly installed on the support seat 2 13. A clamping seat 211 is provided at the telescopic end of the second 12. A non-circular part body 6 is provided between the clamping seat 15 and the clamping seat 211. A support base plate 9 is provided below the non-circular part body 6. A positioning mandrel 10 is provided on the support base plate 9. The lower part of the support base plate 9 is connected to the telescopic rod of the lifting hydraulic rod 14. The lifting hydraulic rod 14 is fixedly installed on the bottom surface of the upper support plate 1. Two positioning mandrels 10 are provided to cooperate with the holes on the non-circular part body 6.
[0023] The irregular part body 6 is provided with an upper machining surface 7 and a lower machining surface 8. Both the upper machining surface 7 and the lower machining surface 8 are provided with corresponding main mating holes. The two positioning mandrels 10 are respectively adapted to the main mating holes on the upper machining surface 7 and the lower machining surface 8 to ensure effective positioning of the irregular part body 6.
[0024] The upper end of the positioning mandrel 10 is provided with a mating guide cone surface 17 to facilitate quick installation and mating of the positioning mandrel 10 with the corresponding main mating hole.
[0025] Both support base 13 and support base 213 are U-shaped frame structures. Reinforcing ribs 19 are fixedly installed on the inner side of both support base 13 and support base 213 to improve the stability of the structure.
[0026] A hydraulic housing 15 is provided on the clamp base plate 2 at the side of the lifting hydraulic rod 14. Fixing holes 16 are provided near the four corners of the clamp base plate 2. The hydraulic housing 15 is equipped with hydraulic components that match the hydraulic rod to ensure the realization of the hydraulic rod's function.
[0027] Protective pads 20 are provided on the clamping surfaces of clamping seat 1 5 and clamping seat 2 11. The protective pads 20 are made of zinc alloy, which has a lower hardness than aluminum alloy, and are used to protect the clamping position of the irregular part body 6.
[0028] The working principle of this utility model is as follows: When drilling the irregular part body 6, the irregular part body 6 is placed on the support base plate 9. Note that the main mating hole on the lower machining surface 8 of the irregular part body 6 is mated with the corresponding positioning mandrel 10. At this time, the irregular part body 6 can rotate relative to the mating positioning mandrel 10. The clamping hydraulic rod 1 4 and clamping hydraulic rod 2 12 are activated, which drive the clamping seat 1 5 and clamping seat 2 11 to move horizontally and clamp the cylindrical structures at both ends of the irregular part body 6. Since the clamping position of clamping seat 1 5 and clamping seat 2 11 is a V-shaped structure, which is matched with the cylindrical surface, it can be effectively centered, thereby effectively limiting the irregular part body 6 and achieving clamping and fixing. Since the irregular part body is made of aluminum alloy, the clamping force needs to be adjusted in advance to avoid excessive clamping force causing deformation of the part. The control of clamping force is the same as that of hydraulic chuck, which is the prior art and will not be described in detail here.
[0029] After drilling and tapping the holes on the upper machined surface 7, loosen clamping seat 1 5 and clamping seat 2 11, and the main body 6 of the irregular part can be removed and rotated 180 degrees. At this time, the lower machined surface 8 contacts the support base plate 9, and the main mating hole on the upper machined surface 7 mates with the corresponding positioning mandrel 10. Then, clamping and fixing are performed using clamping seat 1 5 and clamping seat 2 11, and then the holes on the lower machined surface 8 are machined.
[0030] This utility model is equipped with clamping seat 5 and clamping seat 11. Addressing the unique structure of the irregularly shaped part body 6, the clamping seats are used to clamp and fix the outer cylindrical surfaces at both ends of the irregularly shaped part body 6. Both clamping seats 5 and 11 are V-shaped structures, automatically positioning themselves based on the outer circle during clamping to ensure the straightness of the irregularly shaped part during clamping. A support base plate 9 is provided below the irregularly shaped part body 6, and a positioning mandrel 10 is provided on the support base plate 9. The positioning mandrel 10 engages with the main mating hole on the irregularly shaped part body for positioning, further ensuring the accuracy of clamping and fixing the irregularly shaped part. The clamping process is simple to operate, and the height of the support base plate 9 is adjustable to meet the drilling and processing needs of irregularly shaped parts of the same model but different specifications.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. An aluminum alloy profiled part machining jig comprising an upper support plate (1) and a jig base plate (2), characterized in that, The upper support plate (1) and the clamp base plate (2) are provided with a support stand (18), one end of the upper support plate (1) is fixedly provided with a support seat one (3), the support seat one (3) is fixedly installed with a clamping hydraulic rod one (4), the telescopic end head position of the clamping hydraulic rod one (4) is provided with a clamping seat one (5), the other end of the upper support plate (1) is fixedly provided with a support seat two (13), the support seat two (13) is fixedly installed with a clamping hydraulic rod two (12), the telescopic end head position of the clamping hydraulic rod two (12) is provided with a clamping seat two (11), the clamping seat one (5) and the clamping seat two (11) are provided with a special-shaped part body (6), the lower portion of the special-shaped part body (6) is provided with a support bottom plate (9), the support bottom plate (9) is provided with a positioning core shaft (10), the lower portion of the support bottom plate (9) is connected with the telescopic rod of a lifting hydraulic rod (14), the lifting hydraulic rod (14) is fixedly installed on the bottom surface of the upper support plate (1), the positioning core shaft (10) is provided with two.
2. The aluminum alloy profiled part machining clamp according to claim 1, characterized in that, The special-shaped part body (6) is provided with an upper machining surface (7) and a lower machining surface (8), the upper machining surface (7) and the lower machining surface (8) are provided with main matching holes, and the two positioning core shafts (10) are matched with the main matching holes on the upper machining surface (7) and the lower machining surface (8) respectively.
3. The aluminum alloy profiled part machining jig according to claim 2, characterized by The upper end of the positioning core shaft (10) is provided with a matching guide conical surface (17).
4. The aluminum alloy profiled part machining clamp according to claim 3, characterized in that, The support seat one (3) and the support seat two (13) are both U-shaped frame structures, and the inner sides of the support seat one (3) and the support seat two (13) are fixedly provided with reinforcing ribs (19).
5. The aluminum alloy shaped part machining clamp of claim 4, wherein The clamp base plate (2) is provided with a hydraulic box (15) at the side of the lifting hydraulic rod (14), the clamp base plate (2) is provided with fixed holes (16) near the four corners, and the hydraulic box (15) is provided with a hydraulic assembly matched with the hydraulic rod.
6. The aluminum alloy profiled part machining clamp according to claim 5, characterized in that, The clamping surfaces of the clamping seat one (5) and the clamping seat two (11) are provided with protective pads (20), and the protective pads (20) are made of zinc alloy.