A processing device for preventing magnesium alloy diversion from being deformed during processing of a center hole of a cast pipe

By designing a four-axis machining turntable and a dual-station machining clamping mechanism, the problem of deformation of the center hole of magnesium alloy steering cast pipe during machining was solved, achieving efficient and precise machining results.

CN224406481UActive Publication Date: 2026-06-26JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI TECH
Filing Date
2025-06-26
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the existing technology, the center hole of magnesium alloy steering pipe is prone to problems such as diameter deviation, roundness deviation, and deformation of the magnesium alloy steering pipe body during rough and finish machining.

Method used

A machining device including a four-axis machining turntable and a dual-station machining clamping mechanism was designed. The device achieves rapid positioning through the first and second placement limit components, and the clamping force can be flexibly adjusted by the third pressing limit component to avoid deformation caused by continuous clamping force.

Benefits of technology

This improved the precision and stability of machining the center hole of magnesium alloy steering pipe, reduced the amount of manual debugging work, and enhanced machining efficiency and the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of processing devices for preventing magnesium alloy steering cast pipe center hole processing deformation, belong to magnesium alloy steering cast pipe processing technical field, including four-axis machining rotary table, the movable end of four-axis machining rotary table is fixedly connected with base plate;The upper end of base plate is installed with double-station processing clamping mechanism;The magnesium alloy steering cast pipe body is constituted by first processing surface, second processing surface and center hole processing surface;The double-station processing clamping mechanism includes first placement limiting component and second placement limiting component.By the above-mentioned mode, the compacting force of the device to the magnesium alloy steering cast pipe body can be flexibly adjusted;Avoid the center hole processing surface of the magnesium alloy steering cast pipe body during rough and fine machining, the problem that the diameter of the center hole processing surface appears out-of-tolerance, roundness out-of-tolerance and the magnesium alloy steering cast pipe body appears deformation caused by continuous compacting force.
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Description

Technical Field

[0001] This utility model relates to the field of magnesium alloy steering pipe processing technology, specifically to a processing device for preventing deformation during the processing of the center hole of a magnesium alloy steering pipe. Background Technology

[0002] Magnesium alloy steering tubes are a key component in automotive steering systems.

[0003] In the existing technology, when it is necessary to process the center hole of the magnesium alloy steering pipe, rough machining is usually performed first, followed by finish machining. During the rough and finish machining process, the magnesium alloy steering pipe is always in a clamped and fixed state, which can easily lead to problems such as out-of-tolerance diameter and roundness of the center hole, as well as deformation of the magnesium alloy steering pipe body.

[0004] Based on this, this utility model designs a processing device to prevent deformation of the center hole during the machining of magnesium alloy steering cast pipe, thereby solving the above-mentioned problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a processing device to prevent deformation of the center hole of magnesium alloy steering casting pipe during processing.

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

[0007] A machining apparatus for preventing deformation of the center hole during machining of magnesium alloy steering cast pipe includes a four-axis machining turntable, a base plate, and a dual-station machining clamping mechanism; the movable end of the four-axis machining turntable is fixedly connected to the base plate.

[0008] The upper end of the substrate is equipped with a dual-station machining clamping mechanism for sequentially fixing different parts of the magnesium alloy steering cast pipe body for convenient processing.

[0009] The magnesium alloy steering pipe body is composed of a first machined surface, a second machined surface, and a center hole machined surface;

[0010] The dual-station machining clamping mechanism includes a first placement limiting component for limiting the machining of the second machining surface of the magnesium alloy steering cast pipe body and a second placement limiting component for limiting the machining of the first machining surface and the center hole machining surface of the magnesium alloy steering cast pipe body; the first placement limiting component is installed on the upper left side of the substrate; the second placement limiting component is installed on the upper right side of the substrate.

[0011] Furthermore, multiple sets of first pressing limit components are installed on the outer side of the first placement limit component; second pressing limit components are symmetrically installed on the rear left and right sides of the second placement limit component; and third pressing limit components are symmetrically installed on the front left and right sides of the second placement limit component.

[0012] The first pressure limiting component, the second pressure limiting component, and the third pressure limiting component are all mounted on the upper end of the substrate;

[0013] The first, second, and third pressure limiting components have the same structure and function, only their installation positions are different;

[0014] Furthermore, the first placement limiting component includes a first fixing block, a first positioning block, and a first positioning floating support cylinder; the first fixing block is fixedly installed on the upper left side of the substrate; the first positioning block is fixedly installed on the upper end of the first fixing block; two first positioning floating support cylinders are fixedly installed on the upper end of the substrate; and the installation position of the first positioning floating support cylinder is on the right side of the first fixing block.

[0015] Furthermore, the upper end of the first positioning block is provided with a V-shaped groove that fits tightly against the first machined surface of the magnesium alloy steering cast pipe body.

[0016] Furthermore, the second placement limiting component includes a second fixing block, a second positioning block, and a second floating support cylinder; the second fixing block is fixedly installed on the upper right side of the substrate; the second positioning block is fixedly installed on the upper end of the second fixing block; the two second floating support cylinders are fixedly installed on the upper end of the substrate; and the installation position of the second floating support cylinder is on the front side of the second fixing block.

[0017] Furthermore, the upper end of the second positioning block is also provided with a V-shaped groove that fits tightly against the second machined surface of the magnesium alloy steering pipe body.

[0018] Furthermore, the first, second, and third pressure limiting components are all composed of a hydraulic cylinder, a pressure block, and a supporting rotating block; the hydraulic cylinder is fixedly installed on the upper end of the base plate; the output end of the hydraulic cylinder is hinged to one end of the pressure block; the lower end of the supporting rotating block is hinged to the upper outer shell of the hydraulic cylinder; and the upper end of the supporting rotating block is hinged to the middle of the pressure block.

[0019] Furthermore, rubber anti-slip pads are fixedly installed at the contact points between the pressure block and the magnesium alloy steering pipe body.

[0020] Compared with the prior art, the advantages of this utility model are as follows: 1. By cooperating with the first placement limiting component and the second placement limiting component with the first processing surface and the second processing surface, the device can quickly position the magnesium alloy steering pipe body, reducing the extra workload of manually adjusting the processing position of the magnesium alloy steering pipe body and improving processing efficiency.

[0021] 2. The third pressing limit component can flexibly adjust the clamping force of the device on the magnesium alloy steering pipe body; avoid the problem of diameter deviation, roundness deviation and deformation of the magnesium alloy steering pipe body caused by continuous clamping force during rough and finish machining of the center hole machining surface, thus further improving the practicality of the device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This utility model relates to a three-dimensional machining device for preventing deformation during the machining of the center hole of a magnesium alloy steering cast pipe. Figure 1 ;

[0024] Figure 2 This is a front view of a machining device for preventing deformation of the center hole during machining of a magnesium alloy steering pipe according to the present invention.

[0025] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 4 This utility model relates to a three-dimensional machining device for preventing deformation during the machining of the center hole of a magnesium alloy steering cast pipe. Figure 2 .

[0027] The labels in the diagram represent:

[0028] 1. Four-axis machining turntable; 2. Base plate; 3. Dual-station machining clamping mechanism; 31. First placement limiting component; 311. First fixing block; 312. First positioning block; 313. First positioning floating support cylinder; 32. Second placement limiting component; 321. Second fixing block; 322. Second positioning block; 323. Second floating support cylinder; 33. Hydraulic cylinder; 34. Pressure block; 35. Support rotating block; 4. Magnesium alloy steering cast pipe body; 41. First machining surface; 42. Second machining surface; 43. Center hole machining surface. Detailed Implementation

[0029] 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. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0031] In some embodiments, please refer to the accompanying drawings. Figures 1-4 A machining device for preventing deformation of the center hole during machining of magnesium alloy steering pipes includes a four-axis machining turntable 1, a base plate 2, a dual-station machining clamping mechanism 3, a first pressing limit assembly, a second pressing limit assembly, and a third pressing limit assembly; the movable end of the four-axis machining turntable 1 is fixedly connected to the base plate 2; the four-axis machining turntable 1 adopts mature technology in the industry; for example, a four-axis turntable of model BrotherSZ;

[0032] The upper end of the substrate 2 is equipped with a dual-station machining clamping mechanism 3 for sequentially fixing different parts of the magnesium alloy steering cast pipe body 4 for convenient processing.

[0033] The magnesium alloy steering pipe body 4 is composed of a first machined surface 41, a second machined surface 42 and a center hole machined surface 43.

[0034] like Figure 1 As shown, the dual-station machining clamping mechanism 3 includes a first placement limiting component 31 for machining limiting the second machining surface 42 of the magnesium alloy steering pipe body 4 and a second placement limiting component 32 for machining limiting the first machining surface 41 and the center hole machining surface 43 of the magnesium alloy steering pipe body 4; the first placement limiting component 31 is installed on the upper left side of the substrate 2; the second placement limiting component 32 is installed on the upper right side of the substrate 2.

[0035] The first, second, and third pressure limiting components have the same structure and function, only their installation positions are different; multiple sets of first pressure limiting components are installed on the outside of the first placement limiting component 31; second pressure limiting components are symmetrically installed on the rear of the left and right sides of the second placement limiting component 32; and third pressure limiting components are symmetrically installed on the front of the left and right sides of the second placement limiting component 32.

[0036] The first pressure limiting component, the second pressure limiting component, and the third pressure limiting component are all mounted on the upper end of the substrate 2;

[0037] In this invention, when the second processing surface 42 of the magnesium alloy steering pipe body 4 needs to be processed, the second processing surface 42 of the magnesium alloy steering pipe body 4 is placed upward on the first placement limiting component 31. At this time, the first placement limiting component 31 contacts the area of ​​the first processing surface 41, realizing a floating auxiliary support effect and initially positioning the magnesium alloy steering pipe body 4. Subsequently, multiple sets of first downward pressing limiting components on the outside of the first placement limiting component 31 work to fix the magnesium alloy steering pipe body 4 on the first placement limiting component 31 and provide the main clamping force; then the second processing surface 42 can be processed.

[0038] After the processing of the second processing surface 42 is completed, the magnesium alloy directional casting tube body 4 is flipped so that the first processing surface 41 is placed on the second placement limiting component 32 with the first processing surface 41 facing upward. At this time, the magnesium alloy directional casting tube body 4 is in contact with the area of ​​the second processing surface 42. Then, the second pressing limiting component and the third pressing limiting component on the outside of the second placement limiting component 32 work to fix the magnesium alloy directional casting tube body 4 on the second placement limiting component 32. Then, the first processing surface 41 will be processed.

[0039] When the machining of the first machining surface 41 and the second machining surface 42 is completed, and the machining of the center hole machining surface 43 area is required, the third pressing limit component first releases the clamping force on the front part of the magnesium alloy steering cast tube body 4, releasing the machining stress, and then the center hole machining surface 43 can be rough machined; after the rough machining is completed, the third pressing limit component returns to its original position and provides clamping force to the magnesium alloy steering cast tube body 4 again, and then the center hole machining surface 43 can be fine machined;

[0040] By cooperating with the first placement limiting component 31 and the second placement limiting component 32, and the first processing surface 41 and the second processing surface 42, the device can quickly position the magnesium alloy steering pipe body 4, reducing the extra workload of manually adjusting the processing position of the magnesium alloy steering pipe body 4 and improving processing efficiency. Furthermore, by using the third pressing limiting component, the clamping force of the device on the magnesium alloy steering pipe body 4 can be flexibly adjusted, avoiding the problems of diameter deviation, roundness deviation, and deformation of the magnesium alloy steering pipe body 4 caused by continuous clamping force on the center hole processing surface 43 during rough and finish machining, further improving the practicality of the device.

[0041] like Figure 1 and Figure 2As shown, the first placement limiting component 31 includes a first fixing block 311, a first positioning block 312, and a first positioning floating support cylinder 313; the first fixing block 311 is fixedly installed on the upper left side of the substrate 2; the first positioning block 312 is fixedly installed on the upper end of the first fixing block 311; the two first positioning floating support cylinders 313 are fixedly installed on the upper end of the substrate 2; and the installation position of the first positioning floating support cylinder 313 is on the right side of the first fixing block 311.

[0042] The upper end of the first positioning block 312 is provided with a V-shaped groove that fits tightly against the first machined surface 41 of the magnesium alloy steering pipe body 4.

[0043] like Figure 1 and Figure 2 As shown, the second placement limiting component 32 includes a second fixing block 321, a second positioning block 322, and a second floating support cylinder 323; the second fixing block 321 is fixedly installed on the upper right side of the substrate 2; the second positioning block 322 is fixedly installed on the upper end of the second fixing block 321; the two second floating support cylinders 323 are fixedly installed on the upper end of the substrate 2; and the installation position of the second floating support cylinder 323 is in front of the second fixing block 321.

[0044] The upper end of the second positioning block 322 is also provided with a V-shaped groove that fits tightly against the second machining surface 42 of the magnesium alloy steering pipe body 4.

[0045] like Figure 3 As shown, the first, second, and third downward pressure limiting components are all composed of a hydraulic cylinder 33, a pressure block 34, and a supporting rotating block 35. The hydraulic cylinder 33 is fixedly installed on the upper end of the base plate 2. The output end of the hydraulic cylinder 33 is hinged to one end of the pressure block 34. The lower end of the supporting rotating block 35 is hinged to the upper outer shell of the hydraulic cylinder 33. The upper end of the supporting rotating block 35 is hinged to the middle of the pressure block 34.

[0046] A rubber anti-slip pad is fixedly installed at the contact point between the pressure block 34 and the magnesium alloy steering pipe body 4;

[0047] In this utility model, when the second machining surface 42 of the magnesium alloy steering pipe body 4 needs to be machined, the second machining surface 42 of the magnesium alloy steering pipe body 4 is placed upward on the first positioning block 312. At this time, the first machining surface 41 contacts the V-groove of the first positioning block 312; and the first machining surface 41 also contacts the movable end of the first positioning floating support cylinder 313, realizing the floating auxiliary support effect and initially positioning the magnesium alloy steering pipe body 4. Subsequently, multiple sets of first downward pressure limiting groups on the outside of the first fixing block 311... When the hydraulic cylinder 33 of the component is activated, it pushes the pressure block 34 to rotate upward. The upward movement of the pressure block 34 will drive the support rotating block 35 to rotate upward. The upward rotation of the support rotating block 35 will pull the pressure block 34 to rotate downward until the pressure block 34 changes from a vertical state to a horizontal state. At this time, the pressure blocks 34 of the two front and rear first downward pressure limiting components are pressed against the front and rear sides of the second processing surface 42. The pressure block 34 of the left first downward pressure limiting component is pressed against the center hole processing surface 43. Then, the second processing surface 42 can be processed.

[0048] After the machining of the second machining surface 42 is completed, the magnesium alloy is rotated and flipped so that the first machining surface 41 is placed on the second positioning block 322 with the first machining surface 41 facing upward. At this time, the V-groove of the second positioning block 322 contacts the second machining surface 42; and the second machining surface 42 will also contact the movable end of the second floating support cylinder 323 to achieve preliminary positioning.

[0049] Subsequently, the hydraulic cylinders 33 of the second and third pressing limit components on the outer side of the second fixing block 321 work to fix the magnesium alloy steering cast pipe body 4 on the second fixing block 321, and then the first processing surface 41 will be processed.

[0050] When the machining of the first machining surface 41 and the second machining surface 42 is completed, and the machining of the center hole machining surface 43 area is required, the hydraulic cylinder 33 of the third pressing limit component works to release the clamping on the front part of the magnesium alloy steering pipe body 4, releasing the machining stress, and then the center hole machining surface 43 can be rough machined; after the rough machining is completed, the hydraulic cylinder 33 of the third pressing limit component works to drive the pressure block 34 to return to its original position and provide clamping force to the magnesium alloy steering pipe body 4, and then the center hole machining surface 43 can be fine machined.

[0051] 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 device for preventing magnesium alloy diversion to the center hole of the pipe from being deformed during machining, comprising a four-axis machining rotary table (1), characterized in that: It also includes a substrate (2) and a dual-station machining clamping mechanism (3); the movable end of the four-axis machining turntable (1) is fixedly connected to the substrate (2); The upper end of the substrate (2) is equipped with a dual-station machining clamping mechanism (3) for sequentially fixing different parts of the magnesium alloy steering pipe body (4) for convenient processing. The magnesium alloy steering cast tube body (4) is composed of a first machined surface (41), a second machined surface (42), and a center hole machined surface (43); The dual-station machining clamping mechanism (3) includes a first placement limiting component (31) for machining limiting the second machining surface (42) of the magnesium alloy steering pipe body (4) and a second placement limiting component (32) for machining limiting the first machining surface (41) and the center hole machining surface (43) of the magnesium alloy steering pipe body (4); the first placement limiting component (31) is installed on the upper left side of the substrate (2); the second placement limiting component (32) is installed on the upper right side of the substrate (2).

2. The processing device for preventing deformation during machining of the center hole of a magnesium alloy steering cast pipe according to claim 1, characterized in that, Multiple sets of first pressing limiting components are installed on the outside of the first placement limiting component (31); second pressing limiting components are symmetrically installed on the rear of the left and right sides of the second placement limiting component (32); third pressing limiting components are symmetrically installed on the front of the left and right sides of the second placement limiting component (32). The first pressure limiting component, the second pressure limiting component and the third pressure limiting component are all installed on the upper end of the substrate (2); The first, second, and third pressure limiting components have the same structure and function, only differing in their installation positions.

3. The processing device for preventing deformation during machining of the center hole of a magnesium alloy steering cast pipe according to claim 2, characterized in that, The first placement limiting component (31) includes a first fixing block (311), a first positioning block (312), and a first positioning floating support cylinder (313); the first fixing block (311) is fixedly installed on the upper left side of the substrate (2); the first positioning block (312) is fixedly installed on the upper end of the first fixing block (311); the two first positioning floating support cylinders (313) are fixedly installed on the upper end of the substrate (2); and the installation position of the first positioning floating support cylinder (313) is on the right side of the first fixing block (311).

4. The processing device for preventing deformation during machining of the center hole of a magnesium alloy steering cast pipe according to claim 3, characterized in that, The upper end of the first positioning block (312) is provided with a V-shaped groove that fits tightly against the first machined surface (41) of the magnesium alloy steering pipe body (4).

5. The processing device for preventing deformation during machining of the center hole of a magnesium alloy steering cast pipe according to claim 3, characterized in that, The second placement limiting component (32) includes a second fixing block (321), a second positioning block (322), and a second floating support cylinder (323); the second fixing block (321) is fixedly installed on the upper right side of the substrate (2); the second positioning block (322) is fixedly installed on the upper end of the second fixing block (321); the two second floating support cylinders (323) are fixedly installed on the upper end of the substrate (2); and the installation position of the second floating support cylinder (323) is in front of the second fixing block (321).

6. The processing device for preventing deformation during machining of the center hole of a magnesium alloy steering cast pipe according to claim 5, characterized in that, The upper end of the second positioning block (322) is also provided with a V-shaped groove that fits tightly against the second machined surface (42) of the magnesium alloy steering pipe body (4).

7. The processing device for preventing deformation during machining of the center hole of a magnesium alloy steering cast pipe according to claim 6, characterized in that, The first, second, and third pressure limiting components are all composed of a hydraulic cylinder (33), a pressure block (34), and a support rotating block (35). The hydraulic cylinder (33) is fixedly installed on the upper end of the base plate (2). The output end of the hydraulic cylinder (33) is hinged to one end of the pressure block (34). The lower end of the support rotating block (35) is hinged to the upper outer shell of the hydraulic cylinder (33). The upper end of the support rotating block (35) is hinged to the middle of the pressure block (34).

8. The processing device for preventing deformation during machining of the center hole of a magnesium alloy steering cast pipe according to claim 7, characterized in that, A rubber anti-slip pad is fixedly installed at the contact point between the pressure block (34) and the magnesium alloy steering pipe body (4).