Stress-free flexible combined clamping system for machining thin-wall structural parts

Through the stress-free flexible combined clamping system, stress-free clamping is used to use the inflator and airbag for stress-free clamping, the problem of existing clamping devices causing deformation of thin-walled structural parts is solved, and it is adapted to thin-walled structural parts of different shapes, achieving high-precision processing.

CN119927837AActive Publication Date: 2025-05-06CHENGDU HUACHEN PENGJI TECH CO LTD

Patent Information

Application Number
CN202510430033.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2025-05-06
Estimated Expiration
2045-04-08

AI Technical Summary

Technical Problem

The existing thin-wall structural parts clamping devices tend to deform during the clamping process, and are not convenient to adapt to thin-wall structural parts of different shapes.

Method used

A stress-free flexible combined clamping system is adopted, which includes a support disc, an inflator, a telescopic tube, an L-shaped tube and an airbag. The airbag is inflated through an inflator, and the airbag clamps the thin-walled structural parts and adapts to different shapes of thin-walled structural parts through an adjustment mechanism.

Benefits of technology

Stress-free clamping is achieved, deformation of thin-walled structural parts is avoided, and the application scope of the device for thin-walled structural parts is expanded.

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Abstract

The invention discloses an unstressed flexible combined clamping system for thin-wall structural part machining, and relates to the technical field of thin-wall structural parts, the unstressed flexible combined clamping system comprises two supporting discs, vertical rods are fixedly connected to the corresponding sides of the two supporting discs, and pressing discs are fixedly connected to the ends, away from the supporting discs, of the vertical rods; connecting columns are fixedly connected to the sides, away from the vertical rods, of the supporting discs, inflators are fixedly connected to the ends, away from the supporting discs, of the connecting columns, and through mutual cooperation of the swing plate, the supporting plates, the inflators, the movable plate and other structures, the handle can be moved and drives the swing plate to move; the swing plate drives the supporting discs to move up and down through the transverse plate and the supporting plates, the thin-wall structural part is conveniently placed between the two supporting discs, the inflator inflates the air bag through the telescopic pipe, the L-shaped pipe and the vertical pipe, and the air bag conveniently clamps the thin-wall structural part.
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Description

Technical Field

[0001] The invention relates to the technical field of thin-walled structural parts, in particular to a stress-free flexible combined clamping system for processing thin-walled structural parts. Background Art

[0002] Thin-walled structural parts are workpieces composed of thin plates or thin shells. After the thin-walled structural parts are produced, they often need to be processed by grinding, drilling or polishing. In order to ensure the processing accuracy, the thin-walled structural parts need to be clamped before processing.

[0003] However, there are some problems in the clamping process of existing thin-walled structural parts. The thin-walled structural parts themselves are relatively fragile. When processing thin-walled structural parts, it is easy for the thin-walled structural parts to be deformed and the accuracy is affected due to improper clamping force of the clamping device. At the same time, the existing clamping device is not convenient for clamping thin-walled structural parts of different shapes. The current clamping device usually only has the function of clamping thin-walled structural parts of one or two shapes, and it is not convenient to adjust its own shape to cooperate with thin-walled structural parts of different shapes, which reduces the scope of application of the device. Summary of the invention

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a stress-free flexible combined clamping system for processing thin-walled structural parts, comprising two support plates, each corresponding side of the two support plates is fixedly connected to a vertical rod, each end of the vertical rod away from the support plate is fixedly connected to a pressing plate, each side of the support plate away from the vertical rod is fixedly connected to a connecting column, each end of the connecting column away from the support plate is fixedly connected to an inflator, an outer edge of the inflator is fixedly connected to a plurality of telescopic tubes, an end of the telescopic tube away from the inflator is fixedly connected to an L-shaped tube, an outer edge of the L-shaped tube is fixedly connected to a first limiting ring on a side away from the telescopic tube, a first annular groove is provided on a side of the first limiting ring away from the L-shaped tube, a first magnet is fixedly connected in the first annular groove, a plurality of support plates are fixedly connected to the outer edge of the support plate, and an adjustment mechanism is provided on the outer edge of the support plate.

[0005] Preferably, the adjustment mechanism includes a plurality of first springs, a slide groove is provided on the side of the support plate away from the inflator, the first spring is located in an adjacent slide groove, a slider is movably connected to the inner cavity of the slide groove, one end of the first spring is fixedly connected to one side of the adjacent slider, the side of the slider away from the support plate is fixedly connected to a second arc plate, the outer edge of the second arc plate is fixedly connected to two limit plates, the side of the second arc plate away from the pressing plate is provided with a first arc plate, the outer edge of the first arc plate is fixedly connected to two adjustment plates, a first threaded hole is provided in the inner cavity of the adjustment plate, a bolt is threadedly connected in the first threaded hole, one end of the bolt is inserted into one side of the adjacent limit plate, a movable plate is commonly provided between the two adjacent support plates, a T-slot is provided on the corresponding side of the two adjacent support plates, the outer edges of the movable plate are fixedly connected to two T-blocks, the T-blocks are movably connected in adjacent T-slots, the side of the movable plate away from the support plate is fixedly connected to an elastic Z-shaped plate, and the elastic Z-shaped plate is fixedly connected to a fixed plate.

[0006] Preferably, the inner cavity of the movable plate is provided with a through hole, a vertical tube is passed through the through hole and fixedly connected to the vertical tube, a second limiting ring is fixedly connected to the side of the outer edge of the vertical tube away from the inflator, a second annular groove is provided on the side of the second limiting ring away from the inflator, a second magnet is fixedly connected in the second annular groove, and the adjacent first magnet and second magnet are arranged to fit each other.

[0007] Preferably, the ends of the vertical tubes away from the second limiting ring are fixedly connected to an airbag, the outer edges of the movable plates are provided with a plurality of insertion holes, the outer edges of the support plates are provided with slots, the side of the movable plates close to the support plates are fixedly connected to insertion plates, and the insertion plates are located in adjacent slots.

[0008] Preferably, two connecting plates are fixedly connected to one side of the support plate away from the support disk, connecting holes are provided in the inner cavities of the connecting plates, insertion rods are passed through the connecting holes, L-shaped grooves are provided on the connecting plates, the L-shaped grooves and the connecting holes are interconnected, and handles are fixedly connected to the outer edges of the insertion rods, and one end of the handles passes through the adjacent L-shaped grooves.

[0009] Preferably, the outer edges of the vertical pipes are fixedly connected with elastic plates, and the sides of the elastic plates away from the vertical pipes are fixedly connected with sealing plugs.

[0010] Preferably, a plurality of support columns are provided on the outer edge of the inflator, one end of each support column is fixedly connected to one side of an adjacent support plate, one end of each support column away from the support plate is fixedly connected to a fixing disk, and two slots are provided on the fixing disk.

[0011] Preferably, one side of the two support plates located on the left and right sides are fixedly connected to a cross plate, a second spring is fixedly connected between two adjacent cross plates, a second threaded hole is opened on the cross plate, a threaded rod is threadedly connected in the second threaded hole, a U-shaped block is inserted into the end of the threaded rod away from the cross plate, a swing plate is hinged to the inner cavity of the U-shaped block, the outer edges of the two adjacent swing plates are hinged to a U-shaped plate, and a handle is fixedly connected to the side of the U-shaped plate away from the second spring.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention can realize the moving handle through the mutual cooperation between the swing plate, the support plate, the inflator, the movable plate and other structures. The handle drives the swing plate to move. The swing plate drives the support plate to move up and down through the cross plate and the support plate, so that the thin-walled structural parts can be placed between the two support plates. The inflator inflates the airbag through the telescopic tube, the L-shaped tube and the vertical tube, and the airbag is convenient for clamping the thin-walled structural parts. Through the mutual cooperation among the first arc plate, bolts, fixed plate, first spring and other structures, the first arc plate and the second arc plate can be clamped for circular thin-walled structural parts of different sizes, and the bolts adjust the distance between the first arc plate and the second arc plate. At the same time, the movable plate can be removed from the support plate and installed on the fixed plate, so that it can adapt to more thin-walled structural parts of different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a stereogram of the present invention; Figure 2 This is a second working state diagram of the present invention; Figure 3 It is an exploded view of the present invention; Figure 4 It is a left side view of the inflator component of the present invention; Figure 5 This is a schematic diagram of the structure of the inflator component of the present invention; Figure 6 This is a schematic diagram of the component support plate structure of the present invention; Figure 7 A top view of a component support plate of the present invention; Figure 8 This is a schematic diagram of the structure of the first curved plate of the component of the present invention; Fig. 9 This is a schematic diagram of the structure of the second curved plate of the component of the present invention; Fig.10 This is a schematic diagram of the structure of the movable plate of the component of the present invention; Fig.11 This is a bottom view of the structure of the movable plate of the component of the present invention; Fig.12This is a schematic diagram of the structure of the swing plate component of the present invention; Fig.13 for Figure 8 Enlarged view of point A in the middle.

[0014] Numbers in the figure: 1, support plate; 2, inflator; 3, support plate; 4, support column; 5, fixed plate; 6, movable plate; 7, elastic Z-shaped plate; 8, fixed plate; 9, vertical rod; 10, pressing plate; 11, connecting column; 12, telescopic tube; 13, L-shaped tube; 14, first limiting ring; 15, first magnet; 16, first arc plate; 17, second arc plate; 18, first spring; 19, slider; 20, Limiting plate; 21. Bolt; 22. Adjusting plate; 23. Inserting plate; 24. Airbag; 25. T-block; 26. Second limiting ring; 27. Second magnet; 28. Vertical tube; 29. ​​Elastic plate; 30. Sealing plug; 31. Connecting plate; 32. Inserting rod; 33. Grip; 34. Horizontal plate; 35. Second spring; 36. Threaded rod; 37. U-block; 38. Swinging plate; 39. U-plate; 40. Handle. DETAILED DESCRIPTION

[0015] See also Figure 1-Figure 13 , the present invention provides a technical solution: Embodiment 1:

[0016] A stress-free flexible combined clamping system for processing thin-walled structural parts includes two support plates 1, each of the two support plates 1 having a corresponding side fixedly connected to a vertical rod 9, each of the vertical rods 9 having a pressing plate 10 fixedly connected to one end away from the support plate 1, each of the support plates 1 having a side away from the vertical rod 9 fixedly connected to a connecting column 11, each of the connecting columns 11 having a side away from the support plate 1 fixedly connected to an inflator 2, a plurality of telescopic tubes 12 fixedly connected to the outer edge of the inflator 2, each of the ends of the telescopic tubes 12 away from the inflator 2 fixedly connected to an L-shaped tube 13, a first limiting ring 14 fixedly connected to one side of the outer edge of the L-shaped tube 13 away from the telescopic tube 12, a first annular groove is provided on one side of the first limiting ring 14 away from the L-shaped tube 13, a first magnet 15 fixedly connected in the first annular groove, and a plurality of support plates 3 fixedly connected to the outer edge of the support plates 1 , the outer edges of the support plates 1 are provided with adjustment mechanisms, the outer edges of the inflators 2 are provided with a number of support columns 4, one end of the support columns 4 is fixedly connected to one side of the adjacent support plates 3, the ends of the support columns 4 away from the support plates 3 are fixedly connected to the fixed plates 5, the fixed plates 5 are provided with two slots, one side of the two support plates 3 on the left and right sides are fixedly connected to the cross plates 34, the two adjacent cross plates 34 are commonly fixedly connected with a second spring 35, the cross plates 34 are provided with second threaded holes, the second threaded holes are threadedly connected with threaded rods 36, the ends of the threaded rods 36 away from the cross plates 34 are plugged with U-shaped blocks 37, the inner cavities of the U-shaped blocks 37 are hinged with swing plates 38, the outer edges of the two adjacent swing plates 38 are commonly hinged with U-shaped plates 39, and the U-shaped plates 39 are fixedly connected with handles 40 on the sides away from the second springs 35; Move the handle 40, and the handle 40 drives the swing plate 38 to move. The swing plate 38 drives the support plate 1 to move up and down through the cross plate 34 and the support plate 3, so that the thin-walled structural parts can be placed between the two support plates 1 conveniently. The inflator 2 inflates the airbag 24 through the telescopic tube 12, the L-shaped tube 13 and the vertical tube 28, and the airbag 24 can clamp the thin-walled structural parts conveniently. Embodiment 2:

[0017] The adjustment mechanism includes a plurality of first springs 18, a slide groove is provided on the side of the support plate 3 away from the inflator 2, the first spring 18 is located in the adjacent slide groove, and the inner cavity of the slide groove is movably connected with a slider 19, one end of the first spring 18 is fixedly connected to the side of the adjacent slider 19, and the slider 19 is fixedly connected to the side away from the support plate 3. The outer edge of the second arc plate 17 is fixedly connected to two limit plates 20, and the second arc plate 17 is provided with a first arc plate 16 on the side away from the pressing plate 10, and the outer edge of the first arc plate 16 is fixedly connected to two An adjusting plate 22 is provided, and a first threaded hole is provided in the inner cavity of the adjusting plate 22. A bolt 21 is threadedly connected in the first threaded hole. One end of the bolt 21 is inserted into one side of the adjacent limiting plate 20. A movable plate 6 is provided between two adjacent supporting plates 3. A T-shaped slot is provided on one side corresponding to the two adjacent supporting plates 3. Two T-shaped blocks 25 are fixedly connected to the outer edge of the movable plate 6. The T-shaped blocks 25 are movably connected in the adjacent T-shaped slots. An elastic Z-shaped plate 7 is fixedly connected to the side of the movable plate 6 away from the supporting plate 1, and a fixed plate 8 is fixedly connected to the elastic Z-shaped plate 7. The inner cavity of the movable plate 6 is provided with a through hole, and a vertical tube 28 is penetrated through the through hole and fixedly connected thereto. The side of the outer edge of the vertical tube 28 away from the inflator 2 is fixedly connected to the second limiting ring 26, and the side of the second limiting ring 26 away from the inflator 2 is provided with a second annular groove, and the second magnet 27 is fixedly connected in the second annular groove. The adjacent first magnet 15 and the second magnet 27 are arranged to fit each other, and the end of the vertical tube 28 away from the second limiting ring 26 is fixedly connected to the airbag 24. The outer edge of the movable plate 6 is provided with a plurality of jacks, and the outer edge of the support plate 1 is provided with a slot. The movable plate 6 The side close to the support plate 1 is fixedly connected with an insert plate 23, which is located in an adjacent slot. The side of the support plate 3 away from the support plate 1 is fixedly connected with two connecting plates 31, and the inner cavity of the connecting plate 31 is provided with a connecting hole, and a plug rod 32 is penetrated in the connecting hole. An L-shaped groove is provided on the connecting plate 31, and the L-shaped groove and the connecting hole are mutually connected. The outer edge of the plug rod 32 is fixedly connected with a handle 33, and one end of the handle 33 penetrates the adjacent L-shaped groove. The outer edge of the vertical pipe 28 is fixedly connected with an elastic plate 29, and the side of the elastic plate 29 away from the vertical pipe 28 is fixedly connected with a sealing plug 30; The first arc plate 16 and the second arc plate 17 can clamp circular thin-walled structural parts of different sizes, and the bolts 21 adjust the distance between the first arc plate 16 and the second arc plate 17. At the same time, the movable plate 6 can be removed from the support plate 3 and installed on the fixed plate 5, so that it can adapt to more thin-walled structural parts of different shapes.

[0018] Working principle: When the device starts working, the operator holds the handle 40 and pushes the handle 40 toward one side of the support plate 1. The handle 40 drives the swing plate 38 to swing through the U-shaped plate 39. The swing plate 38 cooperates with the U-shaped block 37 and the threaded rod 36 to adjust the distance between the horizontal plates 34. The second spring 35 is stretched, and the upper and lower support plates 1 will move away from each other. If the thin-walled structure is clamped on the horizontal surface, the thin-walled structure is placed between the upper and lower air bags 24, and the inflator 2 is started. The inflator 2 enters the air bag 24 through the telescopic tube 12, the L-shaped tube 13 and the vertical tube 28, and the air bag 24 gradually expands. The movable plate 6 is expanded to clamp the thin-walled structural member. If the thin-walled structural member on the horizontal plane has a large area, the operator moves the movable plate 6, and the movable plate 6 drives the T-block 25 to move. The T-block 25 moves in the T-slot on the side wall of the support plate 3. After the movable plate 6 moves to a suitable position, the handle 33 is pushed, and the handle 33 drives the insertion rod 32 to move. The insertion rod 32 is inserted into the hole on the surface of the movable plate 6, thereby limiting the movable plate 6. When the movable plate 6 moves, the movable plate 6 drives the vertical tube 28 to move. The vertical tube 28 drives the L-shaped tube 13 to move through the first magnet 15 and the second magnet 27. 13 drives the telescopic tube 12 to stretch, so as to match thin-walled structural parts of different sizes. When a circular thin-walled structural part needs to be clamped, the circular thin-walled structural part is placed between a plurality of first arc plates 16 and second arc plates 17 on the same side. In order to match circular thin-walled structural parts of different diameters, the first arc plates 16 and the second arc plates 17 are moved, and the second arc plates 17 drive the slider 19 to move, and the slider 19 drives the first spring 18 to be compressed, and then the bolt 21 is rotated, and the bolt 21 drives the first arc plate 16 to gradually move toward the second arc plate 17, so as to Circular thin-walled structural parts are clamped. If it is necessary to clamp thin-walled structural parts of other shapes, the operator moves the movable plate 6, and the movable plate 6 drives the T-block 25 to move, and the T-block 25 is completely moved out of the support plate 3, and then the position of the movable plate 6 is adjusted, and the elastic Z-shaped plate 7 is placed inside the upper fixed plate 5, and the fixed plate 8 limits the elastic Z-shaped plate 7. Multiple movable plates 6 are simultaneously located on the top of the upper fixed plate 5, thereby expanding the clamping range for thin-walled structural parts. After the airbag 24 is inflated, the vertical pipe 28 is sealed by the sealing plug 30 to ensure that the gas inside the airbag 24 will not leak out.

Claims

1. A stress-free flexible combined clamping system for processing thin-walled structural parts, comprising two support plates (1), characterized in that: A vertical rod (9) is fixedly connected to one side corresponding to the two support plates (1); one end of the vertical rod (9) away from the support plate (1) is fixedly connected to a pressing plate (10); one side of the support plate (1) away from the vertical rod (9) is fixedly connected to a connecting column (11); one end of the connecting column (11) away from the support plate (1) is fixedly connected to an inflator (2); a plurality of telescopic tubes (12) are fixedly connected to the outer edge of the inflator (2); one end of the telescopic tube (12) away from the inflator (2) is fixedly connected to an L-shaped tube (13); a first limiting ring (14) is fixedly connected to the side of the outer edge of the L-shaped tube (13) away from the telescopic tube (12); a first annular groove is provided on the side of the first limiting ring (14) away from the L-shaped tube (13); a first magnet (15) is fixedly connected in the first annular groove; a plurality of support plates (3) are fixedly connected to the outer edge of the support plate (1); and an adjustment mechanism is provided on the outer edge of the support plate (1).

2. The stress-free flexible combined clamping system for processing thin-walled structural parts according to claim 1 is characterized in that: The adjustment mechanism comprises a plurality of first springs (18), a slide groove is provided on the side of the support plate (3) away from the inflator (2), the first spring (18) is located in an adjacent slide groove, the inner cavity of the slide groove is movably connected to a slider (19), one end of the first spring (18) is fixedly connected to the side of the adjacent slider (19), the side of the slider (19) away from the support plate (3) is fixedly connected to a second arc plate (17), the outer edge of the second arc plate (17) is fixedly connected to two limit plates (20), the side of the second arc plate (17) away from the pressing plate (10) is provided with a first arc plate (16), the outer edge of the first arc plate (16) is fixedly connected to two limit plates (20), and the first arc plate (16) is fixedly connected to the outer edge of the second arc plate (17). An adjusting plate (22) is provided in each of the inner cavities of the adjusting plates (22), wherein each of the first threaded holes is threadedly connected with a bolt (21), wherein one end of each of the bolts (21) is inserted into one side of an adjacent limiting plate (20), wherein a movable plate (6) is provided between two adjacent supporting plates (3), wherein corresponding sides of the two adjacent supporting plates (3) are provided with a T-shaped groove, wherein two T-shaped blocks (25) are fixedly connected to the outer edges of the movable plates (6), wherein the T-shaped blocks (25) are movably connected in adjacent T-shaped grooves, wherein a side of the movable plates (6) away from the supporting plate (1) is fixedly connected with an elastic Z-shaped plate (7), wherein a fixed plate (8) is fixedly connected to the elastic Z-shaped plate (7).

3. The stress-free flexible combined clamping system for processing thin-walled structural parts according to claim 2 is characterized in that: The inner cavity of the movable plate (6) is provided with a through hole, and a vertical tube (28) is passed through the through hole and fixedly connected thereto. A second limiting ring (26) is fixedly connected to the side of the outer edge of the vertical tube (28) away from the inflator (2). A second annular groove is provided on the side of the second limiting ring (26) away from the inflator (2). A second magnet (27) is fixedly connected in the second annular groove. The adjacent first magnet (15) and second magnet (27) are arranged to fit each other.

4. The stress-free flexible combined clamping system for processing thin-walled structural parts according to claim 3 is characterized in that: The ends of the vertical tubes (28) away from the second limiting ring (26) are fixedly connected to the airbags (24), the outer edges of the movable plates (6) are provided with a plurality of insertion holes, the outer edges of the support disks (1) are provided with slots, and the side of the movable plates (6) close to the support disks (1) are fixedly connected to the plug plates (23), and the plug plates (23) are located in adjacent slots.

5. The stress-free flexible combined clamping system for processing thin-walled structural parts according to claim 1 is characterized in that: Two connecting plates (31) are fixedly connected to one side of the support plate (3) away from the support disc (1); the inner cavity of each connecting plate (31) is provided with a connecting hole; an insertion rod (32) passes through each connecting hole; an L-shaped groove is provided on each connecting plate (31); the L-shaped groove and the connecting hole are mutually connected; a handle (33) is fixedly connected to the outer edge of each insertion rod (32); one end of each handle (33) passes through an adjacent L-shaped groove.

6. The stress-free flexible combined clamping system for processing thin-walled structural parts according to claim 3 is characterized in that: The outer edges of the vertical tubes (28) are fixedly connected to elastic plates (29), and the sides of the elastic plates (29) away from the vertical tubes (28) are fixedly connected to sealing plugs (30).

7. The stress-free flexible combined clamping system for processing thin-walled structural parts according to claim 1, characterized in that: The outer edge of the inflator (2) is provided with a plurality of support columns (4), one end of each of the support columns (4) is fixedly connected to one side of an adjacent support plate (3), and one end of each of the support columns (4) away from the support plate (3) is fixedly connected to a fixing plate (5), and each of the fixing plates (5) is provided with two slots.

8. The stress-free flexible combined clamping system for processing thin-walled structural parts according to claim 1, characterized in that: One side of the two support plates (3) located on the left and right sides is fixedly connected to a transverse plate (34), a second spring (35) is fixedly connected between two adjacent transverse plates (34), a second threaded hole is opened on the transverse plate (34), a threaded rod (36) is threadedly connected in the second threaded hole, a U-shaped block (37) is inserted at one end of the threaded rod (36) away from the transverse plate (34), a swing plate (38) is hingedly connected to the inner cavity of the U-shaped block (37), a U-shaped plate (39) is hingedly connected to the outer edges of the two adjacent swing plates (38), and a handle (40) is fixedly connected to one side of the U-shaped plate (39) away from the second spring (35).

Citation Information

Patent Citations

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