Thin-walled part floating support hydraulic clamp
By designing a floating support hydraulic fixture for thin-walled parts, and utilizing a four-axis machining turntable and a multi-station clamping mechanism, the problems of easy deformation and difficult positioning of thin-walled parts during machining were solved, achieving flexible positioning and precise machining.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 苏州众捷汽车零部件股份有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-02
AI Technical Summary
Thin-walled parts are prone to deformation and difficult to position during processing, and existing fixtures are prone to positioning misalignment during clamping.
A floating support hydraulic fixture for thin-walled parts was designed, including a four-axis machining turntable, a base plate, and a multi-station machining clamping mechanism. Through the floating support cylinder and positioning pin assembly, it provides flexible positioning and support, avoiding deformation of the convex and concave parts being formed.
It enables flexible positioning and support of thin-walled machined parts, reduces cutting forces during machining, avoids deformation of the forming parts, and ensures machining accuracy.
Smart Images
Figure CN224310144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thin-walled parts manufacturing and processing technology, specifically to a floating support hydraulic clamp for thin-walled parts. Background Technology
[0002] Thin-walled parts often encounter problems such as easy deformation and positioning difficulties during processing.
[0003] Chinese patent CN212793960U discloses a clamp for thin-walled parts, including a thin-walled part clamp body, a movable chuck support column, a first connecting chuck assembly, and a second connecting chuck assembly. The movable chuck support column is fixedly connected to the bottom of the thin-walled part clamp body, and the first connecting chuck assembly is fixedly connected to the top of the movable chuck support column. However, this device still has the following problems in use:
[0004] Because the shell of a thin-walled part is relatively thin, it will deform under stress during the pressing process, which can easily lead to positioning deviation and cause inconvenience.
[0005] Based on this, the present invention designs a floating support hydraulic clamp for thin-walled parts to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a floating support hydraulic clamp for thin-walled parts.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] The floating support hydraulic fixture for thin-walled parts includes a four-axis machining turntable, as well as a substrate and a multi-station machining clamping mechanism;
[0009] A base plate is fixedly installed on the movable end of the four-axis machining rotary table;
[0010] The upper end of the substrate is equipped with a multi-station machining clamping mechanism for sequentially fixing different parts of the thin-walled workpiece for convenient processing.
[0011] The thin-walled machined part consists of a shaped convex part, a shaped concave part, and a machining allowance part;
[0012] The multi-station machining clamping mechanism includes a first placement limiting component for facilitating the machining and limiting of the convex portion of the thin-walled workpiece, a second placement limiting component for facilitating the machining and limiting of the concave portion of the thin-walled workpiece, and a third placement limiting component for facilitating the machining allowance portion of the thin-walled workpiece; 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 middle part of the substrate; and the third placement limiting component is installed on the upper right side of the substrate.
[0013] Furthermore, it also includes a pressing clamping assembly. The outer sides of the first placement limiting assembly, the second placement limiting assembly, and the third placement limiting assembly are all provided with multiple pressing clamping assemblies for fixing the thin-walled workpiece; and the pressing clamping assembly is installed on the upper end of the substrate.
[0014] Furthermore, the first placement limiting component includes a first positioning block, a floating support cylinder, and a first positioning pin; the first positioning block is fixedly installed on the upper left side of the base plate; two floating support cylinders are fixedly installed on the upper end of the first positioning block; and two first positioning pins are fixedly installed on the first positioning block.
[0015] Furthermore, the second placement limiting component includes a second positioning block and a second positioning pin; the second positioning block is fixedly installed at the upper middle part of the substrate; and the two second positioning pins are fixedly installed at the upper end of the second positioning block.
[0016] Furthermore, the third placement limiting component includes a third positioning block; the third positioning block is fixedly installed on the upper right side of the substrate;
[0017] Furthermore, the pressing and clamping assembly includes 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 the outer side of the lower end of the pressure block; the lower end of the supporting rotating block is hinged to the inner side of the upper end of the outer shell of the hydraulic cylinder, and the upper end of the supporting rotating block is hinged to the inner side of the lower end of the pressure block.
[0018] Furthermore, the contact area between the pressure block on the outer side of the third positioning block and the workpiece is greater than the contact area between the pressure block on the outer side of the first positioning block and the second positioning block and the workpiece.
[0019] Furthermore, a rubber anti-slip pad is provided at the contact position between the pressure block and the thin-walled workpiece.
[0020] Compared with the prior art, the advantages of this utility model are as follows: 1. When it is necessary to process the convex part of the thin-walled workpiece, the concave part of the thin-walled workpiece is placed on the first positioning block with the concave part facing downwards, and the movable end of the floating support cylinder extends upwards to contact the concave part, so as to achieve the floating auxiliary support effect for the thin-walled workpiece; this not only reduces the cutting force generated by the cutting device on the thin-walled workpiece during cutting, but also allows the device to flexibly adjust the positioning position according to the concave depth of the concave part.
[0021] 2. By setting a machining allowance, the clamping area of the device on the thin-walled workpiece is always outside the forming convex and concave parts, thus avoiding deformation of the forming convex and concave parts. 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 provides a three-dimensional floating support hydraulic clamp for thin-walled parts. Figure 1 ;
[0024] Figure 2 This is a front view of the thin-walled floating support hydraulic clamp of this utility model;
[0025] Figure 3 This utility model provides a three-dimensional floating support hydraulic clamp for thin-walled parts. Figure 2 ;
[0026] Figure 4 A 3D view of the first placement limiting component;
[0027] Figure 5 A 3D view of the second placement limiting component;
[0028] Figure 6 A 3D view of the third placement limiting component;
[0029] Figure 7 Schematic diagram of the structure of a thin-walled part before and after machining. Figure 1 ;
[0030] Figure 8 Schematic diagram of the structure of a thin-walled part before and after machining. Figure 2 .
[0031] The labels in the diagram represent:
[0032] 1. Four-axis machining turntable; 2. Base plate; 3. Multi-station machining clamping mechanism; 31. First placement limiting component; 311. First positioning block; 312. Floating support cylinder; 313. First positioning pin; 32. Second placement limiting component; 321. Second positioning block; 322. Second positioning pin; 33. Third placement limiting component; 331. Third positioning block; 34. Downward clamping component; 341. Hydraulic cylinder; 342. Pressure block; 343. Support rotating block; 4. Thin-walled machined part; 41. Formed convex part; 42. Formed concave part; 43. Machining allowance. Detailed Implementation
[0033] 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.
[0034] 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.
[0035] In some embodiments, please refer to the accompanying drawings. Figures 1-8 The thin-walled part floating support hydraulic fixture includes a four-axis machining turntable 1, a base plate 2, and a multi-station machining clamping mechanism 3;
[0036] The movable end of the four-axis machining rotary table 1 is fixedly mounted with a base plate 2; the four-axis machining rotary table 1 adopts mature technology in the industry, such as the four-axis rotary table with the model BrotherSZ.
[0037] The upper end of the substrate 2 is equipped with a multi-station processing clamping mechanism 3 for sequentially fixing different parts of the thin-walled workpiece 4 for convenient processing;
[0038] The thin-walled machined part 4 is composed of a shaped convex part 41, a shaped concave part 42 and a machining allowance part 43;
[0039] like Figure 1 As shown, the multi-station processing clamping mechanism 3 includes a first placement limiting component 31 for facilitating the processing and limiting of the forming convex part 41 of the thin-walled workpiece 4, a second placement limiting component 32 for facilitating the processing and limiting of the forming concave part 42 of the thin-walled workpiece 4, a third placement limiting component 33 for facilitating the processing and limiting of the processing allowance part 43 of the thin-walled workpiece 4, and multiple pressing clamping components 34.
[0040] 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 in the upper middle part of the substrate 2; the third placement limiting component 33 is installed on the upper right side of the substrate 2; multiple pressing clamping components 34 for fixing the thin-walled workpiece 4 are provided on the outer sides of the first placement limiting component 31, the second placement limiting component 32 and the third placement limiting component 33; and the pressing clamping components 34 are installed on the upper end of the substrate 2.
[0041] In this utility model, when it is necessary to process the convex part 41 of the thin-walled workpiece 4, the concave part 42 of the thin-walled workpiece 4 is placed downwards on the first placement limiting component 31. At this time, the first placement limiting component 31 contacts the area of the concave part 42, realizing the floating auxiliary support effect and initially positioning the thin-walled workpiece 4. Subsequently, multiple pressing clamping components 34 on the outside of the first placement limiting component 31 work to fix the end of the processing allowance 43 near the convex part 41 on the first placement limiting component 31, providing the main clamping force; then the convex part 41 can be processed.
[0042] After the convex part 41 is processed, the thin-walled part 4 is flipped over so that the concave part 42 is placed on the second placement limiting component 32 with the concave part facing upward. At this time, the second placement limiting component 32 contacts the area of the convex part 41. Then, the multiple pressing clamping components 34 on the outside of the second placement limiting component 32 work to fix the end of the processing allowance 43 near the concave part 42 on the second placement limiting component 32. Then, the processing operation of the concave part 42 will be performed.
[0043] After the machining of the convex part 41 and the concave part 42 is completed, the machining allowance 43 of the thin-walled part 4 needs to be removed. At this time, the concave part 42 is placed on the third placement limiting component 33 with the concave part facing upward. The convex part 41 contacts the third placement limiting component 33. Then, the pressing clamping component 34 provided on the outside of the third placement limiting component 33 works to press down and fix the transition part between the concave part 42 and the machining allowance 43, so that the machining allowance 43 is exposed. Then the machining allowance 43 can be cut.
[0044] Because the material of the thin-walled workpiece 4 is relatively thin, it is prone to deformation during processing. At this time, the first placement limiting component 31 can automatically adjust the positioning surface according to the recess depth of the forming concave part 42. Furthermore, when the pressing clamping component 34 presses and fixes the thin-walled workpiece 4, it will generate a large clamping force on the thin-walled workpiece 4, which can easily cause the thin-walled workpiece 4 to deform. By setting the processing allowance part 43, the pressing area of the device on the thin-walled workpiece 4 is always outside the forming convex part 41 and the forming concave part 42, thus avoiding deformation of the forming convex part 41 and the forming concave part 42. When the processing of the forming convex part 41 and the forming concave part 42 is completed, the pressing clamping component 34 presses and fixes the transition part between the forming concave part 42 and the processing allowance part 43, adding a new positioning surface and avoiding excessive processing stress when cutting the processing allowance part 43, which would cause the dimensions of the thin-walled workpiece 4 to exceed the tolerance.
[0045] like Figure 4As shown, the first placement limiting component 31 includes a first positioning block 311, a floating support cylinder 312, and a first positioning pin 313; the first positioning block 311 is fixedly installed on the upper left side of the base plate 2; two floating support cylinders 312 are fixedly installed on the upper end of the first positioning block 311; and two first positioning pins 313 are fixedly installed on the first positioning block 311.
[0046] like Figure 5 As shown, the second placement limiting component 32 includes a second positioning block 321 and a second positioning pin 322; the second positioning block 321 is fixedly installed in the middle of the upper end of the substrate 2; the two second positioning pins 322 are fixedly installed in the upper end of the second positioning block 321.
[0047] like Figure 6 As shown, the third placement limiting component 33 includes a third positioning block 331; the third positioning block 331 is fixedly installed on the upper right side of the substrate 2;
[0048] like Figures 4-6 As shown, the pressing and clamping assembly 34 includes a hydraulic cylinder 341, a pressing block 342, and a supporting rotating block 343; the hydraulic cylinder 341 is fixedly installed on the upper end of the base plate 2; the output end of the hydraulic cylinder 341 is hinged to the outer side of the lower end of the pressing block 342; the lower end of the supporting rotating block 343 is hinged to the inner side of the upper end of the outer shell of the hydraulic cylinder 341, and the upper end of the supporting rotating block 343 is hinged to the inner side of the lower end of the pressing block 342.
[0049] The contact area between the pressure block 342 on the outer side of the third positioning block 331 and the workpiece is greater than that between the pressure block 342 on the outer side of the first positioning block 311 and the second positioning block 321 and the workpiece. This increases the contact area between the device and the thin-walled workpiece 4 when the machining allowance part 43 is being cut, thus preventing the dimensions of the convex part 41 and the concave part 42 from exceeding the tolerance.
[0050] A rubber anti-slip pad is provided at the contact position between the pressure block 342 and the thin-walled workpiece 4;
[0051] In this invention, when the convex portion 41 of the thin-walled workpiece 4 needs to be processed, the concave portion 42 of the thin-walled workpiece 4 is placed downwards on the first positioning block 311, and the movable end of the floating support cylinder 312 extends upwards to contact the concave portion 42, thereby achieving a floating auxiliary support effect for the thin-walled workpiece 4. This not only reduces the cutting force generated by the cutting device on the thin-walled workpiece 4 during cutting, but also allows the device to flexibly adjust the positioning position according to the concave depth of the concave portion 42.
[0052] Subsequently, multiple hydraulic cylinders 341 on the outer side of the first positioning block 311 operate, pushing the pressure block 342 to move upward. The upward movement of the pressure block 342 will cause the support rotating block 343 to rotate upward. The upward rotation of the support rotating block 343 will pull the pressure block 342 to rotate downward until the pressure block 342 changes from a vertical state to a horizontal state. At this time, the pressure block 342 will be firmly fixed against the end of the machining allowance 43 near the forming convex part 41; and the end of the machining allowance 43 near the forming concave part 42 will contact and abut against the first positioning pin 313; then the forming convex part 41 can be machined.
[0053] After the machining of the convex part 41 is completed, the thin-walled workpiece 4 is flipped over so that the concave part 42 is placed on the second positioning block 321 with the concave part 42 facing upward. At this time, the second positioning block 321 contacts the area of the convex part 41. Then, the multiple hydraulic cylinders 341 on the outside of the second positioning block 321 work to make the pressure block 342 abut against the end of the machining allowance 43 near the convex part 41 and fix it in place. The second positioning pin 322 also contacts and abuts against the end of the machining allowance 43 near the concave part 42. Then, the machining operation of the concave part 42 can be performed.
[0054] After the machining of the convex part 41 and the concave part 42 is completed, the machining allowance 43 of the thin-walled workpiece 4 needs to be removed. The concave part 42 is placed on the third positioning block 331 with the convex part 41 facing upward. At this time, the convex part 41 contacts the third positioning block 331. Then, the hydraulic cylinder 341 on the outside of the third positioning block 331 works to drive the pressure block 342 to move and press down to fix the transition part between the concave part 42 and the machining allowance 43. At this time, the machining allowance 43 is exposed on the outside of the pressure block 342, and the machining allowance 43 can be cut and removed. After the machining allowance 43 is cut, the thin-walled workpiece 4 can be taken out. At this time, only the convex part 41 and the concave part 42 are retained in the thin-walled workpiece 4.
[0055] 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 floating support hydraulic fixture for thin-walled parts, comprising a four-axis machining turntable (1), characterized in that: It also includes a substrate (2) and a multi-station processing clamping mechanism (3); The movable end of the four-axis machining turntable (1) is fixedly mounted with a base plate (2); The upper end of the substrate (2) is equipped with a multi-station machining clamping mechanism (3) for sequentially fixing different parts of the thin-walled workpiece (4) for convenient processing. The thin-walled part (4) is composed of a shaped convex part (41), a shaped concave part (42), and a machining allowance part (43); The multi-station machining clamping mechanism (3) includes a first placement limiting component (31) for facilitating the machining of the convex part (41) of the thin-walled workpiece (4), a second placement limiting component (32) for facilitating the machining of the concave part (42) of the thin-walled workpiece (4), and a third placement limiting component (33) for facilitating the machining of the machining allowance (43) of the thin-walled workpiece (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 middle part of the substrate (2); and the third placement limiting component (33) is installed on the upper right side of the substrate (2).
2. The thin-walled component floating support hydraulic clamp according to claim 1, characterized in that, The multi-station machining clamping mechanism (3) also includes a pressing clamping assembly (34). Multiple pressing clamping assemblies (34) for fixing the thin-walled workpiece (4) are provided on the outer sides of the first placement limiting assembly (31), the second placement limiting assembly (32) and the third placement limiting assembly (33); and the pressing clamping assembly (34) is installed on the upper end of the substrate (2).
3. The thin-walled component floating support hydraulic clamp according to claim 2, characterized in that, The first placement limiting component (31) includes a first positioning block (311), a floating support cylinder (312), and a first positioning pin (313); the first positioning block (311) is fixedly installed on the upper left side of the base plate (2); the two floating support cylinders (312) are fixedly installed on the upper end of the first positioning block (311); and the two first positioning pins (313) are fixedly installed on the first positioning block (311).
4. The thin-walled component floating support hydraulic clamp according to claim 3, characterized in that, The second placement limiting component (32) includes a second positioning block (321) and a second positioning pin (322); the second positioning block (321) is fixedly installed in the middle of the upper end of the substrate (2); the two second positioning pins (322) are fixedly installed in the upper end of the second positioning block (321).
5. The thin-walled component floating support hydraulic clamp according to claim 4, characterized in that, The third placement limiting component (33) includes a third positioning block (331); the third positioning block (331) is fixedly installed on the upper right side of the substrate (2).
6. The thin-walled component floating support hydraulic clamp according to claim 5, characterized in that, The pressing clamping assembly (34) includes a hydraulic cylinder (341), a pressure block (342), and a support rotating block (343); the hydraulic cylinder (341) is fixedly installed on the upper end of the base plate (2); the output end of the hydraulic cylinder (341) is hinged to the outer side of the lower end of the pressure block (342); the lower end of the support rotating block (343) is hinged to the inner side of the upper end of the outer shell of the hydraulic cylinder (341), and the upper end of the support rotating block (343) is hinged to the inner side of the lower end of the pressure block (342).
7. The thin-walled component floating support hydraulic clamp according to claim 6, characterized in that, The contact area between the pressure block (342) on the outer side of the third positioning block (331) and the workpiece is greater than the contact area between the pressure block (342) on the outer side of the first positioning block (311) and the second positioning block (321) and the workpiece.
8. The thin-walled component floating support hydraulic clamp according to claim 7, characterized in that, A rubber anti-slip pad is provided at the contact position between the pressure block (342) and the thin-walled workpiece (4).