Automobile longitudinal beam channel steel arc deformation device

Abstract

The invention discloses an automobile longitudinal beam channel steel arc deformation device, and relates to the technical field of automobile longitudinal beam channel steel machining equipment.The automobile longitudinal beam channel steel arc deformation device comprises a fixing frame, multiple sets of first deformation bottom frames are evenly arranged on the top wall of the fixing frame, and multiple sets of first flat plates are fixed to the upper end of the inner wall of the fixing frame; a plurality of deformation columns matched with the first deformation bottom frame are movably arranged on the first flat plates in a penetrating mode, the bottom walls of the deformation columns and the bottom wall of an inner cavity of the first deformation bottom frame are arranged to be in an arc shape, and a plurality of vertical telescopic assemblies are fixed to the bottom walls of the first flat plates. The to-be-machined automobile longitudinal beam channel steel is placed on the first deformation bottom frame, and the translation assembly and the first pressing assembly are started to drive the deformation column to move downwards and be matched with the first deformation bottom frame, so that an arc-shaped section can be formed in the initial deformation stage of the automobile longitudinal beam channel steel, and then a material temporary storage area is formed; and the surface cracking phenomenon caused by R angle thinning can be perfectly avoided, and meanwhile the qualified rate of products is remarkably increased.

Description

Technical Field

[0001] The present application relates to the technical field of automobile longitudinal beam channel steel processing equipment, and in particular to an arc deformation device for automobile longitudinal beam channel steel. Background Art

[0002] The existing high-manganese steel rolling of the longitudinal beam channel steel adopts the large-surface fixed inner block flat rolling method. However, due to incomplete material stress release during the rolling process, after the rolling is completed, the product bottom plate is uneven, the bottom R arc is pulled up and thinned, and there are obvious cracks. In more serious cases, cracks appear directly at the R corner of the product. For this reason, the present application proposes an arc deformation device for automobile longitudinal beam channel steel to solve the above problems. Summary of the invention

[0003] In order to improve the above-mentioned problem that because the bottom surface deformation process is direct bending deformation by large surface rollers, the elongation at the R-angle deformation of the product is insufficient, resulting in pulling, thinning and cracking at the R-angle, the present application provides an arc deformation device for automobile longitudinal beam channel steel.

[0004] The present application provides an arc deformation device for automobile longitudinal beam channel steel, which adopts the following technical solution:

[0005] A circular arc deformation device for a longitudinal beam channel steel of an automobile comprises a fixed frame, a plurality of groups of first deformation bottom frames are evenly arranged at the top wall position of the fixed frame, a plurality of groups of first flat plates are fixed at the upper end position of the inner wall of the fixed frame, a plurality of groups of deformation columns matching the first deformation bottom frames are movably penetrated on the plurality of first flat plates, the bottom walls of the plurality of deformation columns and the inner cavity bottom wall positions of the first deformation bottom frame are both arranged in an arc shape, a plurality of groups of vertical telescopic components are fixed at the bottom wall position of the first flat plate, the bottom positions of the plurality of vertical telescopic components are in contact with the outer wall of the deformation column, and the lower end positions of the outer walls of the plurality of deformation columns are all provided with a clamping plate engaging with the vertical telescopic component;

[0006] The top positions of the side walls of the fixed frames are all sleeved with fourth installation frames, the inner walls of multiple groups of the fourth installation frames are fixed with translation components, the bottom positions of the translation components are fixed with first pressing components, and the first pressing components are arranged above the multiple groups of deformation columns.

[0007] By adopting the above technical solution, the automobile longitudinal beam channel steel to be processed is placed on the first deformed bottom frame at an appropriate position, and the translation component and the first pressing component are started to drive the deformation column to move downward and cooperate with the first deformed bottom frame, so that an arc-shaped cross-section can be formed in the early stage of deformation of the automobile longitudinal beam channel steel, thereby forming a material temporary storage area. During subsequent leveling, the original arc surface material is transferred to the R-shaped cross-section on both sides, which can perfectly avoid the surface cracking phenomenon caused by the thinning of the R angle, and at the same time significantly improve the qualified rate of the product, greatly reduce unnecessary waste of materials, and reduce the production cost of the product.

[0008] Optionally, the vertical telescopic assembly includes a vertical tube, which is fixed on the bottom wall of the first flat plate, a first spring is fixed to the top wall of the inner cavity of the vertical tube, a vertical rod penetrating the bottom wall of the vertical tube is fixed to the bottom of the first spring, a connecting plate in contact with the outer wall of the deformation column is fixed to the bottom of the vertical rod, and the connecting plate and the clamping plate are engaged with each other.

[0009] By adopting the above technical solution, when the deformation column moves, the clamping plate can be used to drive the connecting plate to move synchronously. Under the action of the connecting plate, the vertical rod can be driven to move synchronously in the inner cavity of the vertical tube and the first spring can be driven to stretch and elastically deform. When the pressing plate moves upward and separates from the deformation column, the deformation column can be automatically reset under the action of the elastic force of the first spring.

[0010] Optionally, the translation assembly includes a third mounting frame, which is fixed on the outer wall of the fourth mounting frame, and a strip hole is opened at the bottom wall of the third mounting frame. A driving forward and reverse motor is fixed to one side of the bottom wall of the inner cavity of the third mounting frame, and a screw body is fixed to the output end of the driving forward and reverse motor. A screw nut is installed on the outside of the screw body, which passes through the strip hole and is fixed to the first pressing assembly.

[0011] Optionally, the first pressing assembly includes a second mounting frame, which is fixed on the bottom wall of the screw nut, a first cylinder is fixed on the bottom wall of the inner cavity of the second mounting frame, and a vertical output shaft of the first cylinder passes through the bottom wall of the second mounting frame and is fixed with a pressing plate.

[0012] By adopting the above technical solution, the forward and reverse motors are started to drive the screw body to rotate, thereby driving the screw nut to move horizontally to an appropriate position in the inner cavity of the strip hole, and then the first cylinder is started to extend to drive the pressing plate to move downward and drive the deformation column to move downward synchronously.

[0013] Optionally, a plurality of groups of second screw holes are provided at the upper end of the outer wall of the fixing frame, and a plurality of groups of outer walls of the fourth installation frames are all provided with first bolts matching the threads of the second screw holes.

[0014] By adopting the above technical solution, the first bolt is screwed to separate it from the second screw hole, and then the fourth installation frame is moved upward to separate it from the fixed frame, so that the third installation frame can be easily disassembled and replaced.

[0015] Optionally, the outer walls of multiple groups of the first deformable bottom frames are all sleeved with a first installation frame fixed to the bottom wall of the inner cavity of the fixed frame, the outer walls of multiple groups of the first deformable bottom frames are all provided with multiple groups of first screw holes, and the outer walls of multiple groups of the first installation frames are all penetrated by second bolts matching the threads of the first screw holes.

[0016] By adopting the above technical solution, the second bolt at the corresponding position is screwed to separate it from the first screw hole, and then the first deformable bottom frame at the corresponding position is moved upward to separate it from the first installation frame, thereby facilitating the disassembly and replacement of the first deformable bottom frame.

[0017] Optionally, multiple sets of second deformable bottom frames are installed on the bottom wall of the inner cavity of the fixed frame, multiple sets of second pressing components are arranged on the bottom wall of the first flat plate, and the multiple sets of second pressing components are respectively arranged directly above the multiple sets of second deformable bottom frames.

[0018] Optionally, the second pressing assembly includes a fifth mounting frame, which is arranged at the bottom wall position of the first flat plate, and a second cylinder is fixed at the bottom wall position of the inner cavity of the fifth mounting frame, and the end of the vertical output shaft of the second cylinder passes through the bottom wall of the fifth mounting frame and is fixed with a pressing block.

[0019] By adopting the above technical solution, the automobile longitudinal beam channel steel workpiece to be leveled is placed in the second deformable bottom frame at the corresponding position, and the second cylinder at the corresponding position is started to extend and drive the pressing block to move downward, so that the automobile longitudinal beam channel steel workpiece can be leveled.

[0020] Optionally, second vertical plates are installed at the top positions of the outer walls on both sides of multiple groups of the fifth installation frames, positioning holes are opened on the outer walls of multiple groups of the second vertical plates, and elastic telescopic snap-fit ​​components are provided on the outer walls of multiple groups of the second vertical plates that are fixed to the position of the bottom wall of the first flat plate.

[0021] Optionally, the elastically telescopic snap-fit ​​assembly includes a first vertical plate, which is fixed at the bottom wall of the first flat plate, the inner wall of the first vertical plate is in contact with the outer wall of the second vertical plate, and an insertion rod movably penetrates the first vertical plate and engages with the positioning hole, and a plurality of groups of second springs fixed to the outer wall of the first vertical plate are installed on the inner wall of the insertion rod.

[0022] By adopting the above technical solution, the insertion rod is pulled outward to drive the second spring to extend and produce elastic deformation until the insertion rod is separated from the positioning hole, and then the fifth installation frame is moved to drive the second vertical plate to separate from the first vertical plate, thereby facilitating the disassembly and replacement of the fifth installation frame.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] First, place the automobile longitudinal beam channel steel to be processed on the first deformation bottom frame at an appropriate position, start the driving forward and reverse motor to drive the screw body to rotate, so as to drive the screw nut to move horizontally to an appropriate position in the inner cavity of the strip hole, and then start the first cylinder to extend to drive the pressing plate to move downward and drive the deformation column to move downward synchronously. During the movement of the deformation column, it can cooperate with the first deformation bottom frame, so that an arc-shaped cross-section can be formed in the early stage of deformation of the automobile longitudinal beam channel steel, and then a material temporary storage area can be formed. In the subsequent leveling, the original arc surface material is transferred to the R intersection on both sides, which can perfectly avoid the surface cracking phenomenon caused by the thinning of the R angle, and at the same time significantly improve the qualified rate of the product, greatly reduce the unnecessary waste of materials, and reduce the production cost of the product;

[0025] Second, the automobile longitudinal beam channel steel workpiece to be leveled is placed in the second deformable bottom frame at the corresponding position, and the second cylinder at the corresponding position is started to extend and drive the pressing block to move downward, so that the automobile longitudinal beam channel steel workpiece can be leveled. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the cross-sectional structure of the present application;

[0027] Figure 2 This is a schematic diagram of the front and cross-sectional structure of the first flat plate, the clamping plate, the deformable column and the vertical telescopic assembly of the present application;

[0028] Figure 3 This is a schematic diagram of the rear cross-sectional structure of the first flat plate and the fixed frame of the present application.

[0029] In the figure: 1. first bolt; 2. first flat plate; 3. clamping plate; 4. second bolt; 5. first screw hole; 6. first mounting frame; 7. first deformable bottom frame; 8. fixing frame; 9. deformable column; 10. pressing plate; 11. first cylinder; 12. second mounting frame; 13. second screw hole; 14. lead screw nut; 15. third mounting frame; 16. strip hole; 17. lead screw body; 18. driving forward and reverse motor; 19. fourth mounting frame; 20. first spring; 21. vertical tube; 22. vertical rod; 23. connecting plate; 24. second cylinder; 25. fifth mounting frame; 26. pressing block; 27. second deformable bottom frame; 28. positioning hole; 29. ​​first vertical plate; 30. second spring; 31. second vertical plate; 32. plug rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] Example 1, please refer to the attached figure in the specification Figure 1A device for circular arc deformation of automobile longitudinal beam channel steel comprises a fixed frame 8, a longitudinal section of the fixed frame 8 is set to be U-shaped, a plurality of groups of first deformable bottom frames 7 are evenly arranged at the top wall position of the fixed frame 8, an inner cavity of the first deformable bottom frame 7 is provided with an opening, and the openings of the plurality of groups of first deformable bottom frames 7 have different degrees of inclination, a plurality of groups of first flat plates 2 are fixed at the upper end position of the inner wall of the fixed frame 8, a plurality of groups of deformation columns 9 matching the first deformable bottom frame 7 are movably penetrated on the plurality of groups of first flat plates 2, and the bottom walls of the plurality of groups of deformation columns 9 and the bottom wall of the inner cavity of the first deformable bottom frame 7 are both set to be arc-shaped.

[0032] Please refer to the attached figure in the instruction manual Figure 1 and 2 Multiple groups of vertical telescopic components are fixed on the bottom wall of the first flat plate 2, and the bottom positions of the multiple groups of vertical telescopic components are in contact with the outer wall of the deformation column 9. The lower ends of the outer walls of the multiple groups of deformation columns 9 are all equipped with card plates 3 that engage with the vertical telescopic components.

[0033] Please refer to the attached figure in the instruction manual Figure 1 A fourth mounting frame 19 is sleeved on the top position of the side wall of the fixed frame 8, and the bottom position of the fourth mounting frame 19 is set to an open shape. The inner walls of multiple groups of fourth mounting frames 19 are fixed with translation components, and the translation components include a third mounting frame 15. The third mounting frame 15 is fixed on the outer wall of the fourth mounting frame 19. A strip hole 16 is opened at the bottom wall position of the third mounting frame 15. A driving forward and reverse motor 18 is fixed at one side position of the bottom wall of the inner cavity of the third mounting frame 15. A screw body 17 is fixed to the output end of the driving forward and reverse motor 18. The end position of the screw body 17 is rotatably connected to the inner wall of the third mounting frame 15 through a bearing, and a screw nut 14 passing through the strip hole 16 is installed on the outside of the screw body 17.

[0034] Please refer to the attached figure in the instruction manual Figure 1 A first pressing assembly is fixed at the bottom position of the screw nut 14, and the first pressing assembly includes a second mounting frame 12. The second mounting frame 12 is fixed on the bottom wall of the screw nut 14, and a first cylinder 11 is fixed at the bottom wall of the inner cavity of the second mounting frame 12. The vertical output shaft of the first cylinder 11 passes through the bottom wall of the second mounting frame 12 and is fixed with a pressing plate 10. The pressing plate 10 is arranged above the multiple groups of deformation columns 9.

[0035] The specific working principle is: place the automobile longitudinal beam channel steel to be processed on the first deformation bottom frame 7 at the appropriate position, start the forward and reverse motor 18 to drive the screw body 17 to rotate, so as to drive the screw nut 14 to move horizontally to the appropriate position in the inner cavity of the strip hole 16, and then start the first cylinder 11 to extend and drive the pressing plate 10 to move downward and drive the deformation column 9 to move downward synchronously. During the movement of the deformation column 9, it can cooperate with the first deformation bottom frame 7, so that an arc-shaped cross-section can be formed in the early stage of deformation of the automobile longitudinal beam channel steel, and then a material temporary storage area is formed. During the subsequent leveling, the original arc surface material is transferred to the R-shaped sides, which can perfectly avoid the surface cracking caused by the thinning of the R angle, and at the same time significantly improve the qualified rate of the product, greatly reduce the unnecessary waste of materials, and reduce the production cost of the product. The curvature of the inner cavity of the first deformation bottom frame 7 at different positions is different, which is convenient to meet the needs of different processes.

[0036] Example 2, please refer to the attached figure in the specification Figure 2 A device for deforming an automobile longitudinal beam channel steel in an arc shape includes a vertical telescopic assembly including a vertical tube 21, the vertical tube 21 is fixed on the bottom wall of a first flat plate 2, a first spring 20 is fixed to the top wall of the inner cavity of the vertical tube 21, a vertical rod 22 penetrating the bottom wall of the vertical tube 21 is fixed to the bottom of the first spring 20, a connecting plate 23 in contact with the outer wall of a deformation column 9 is fixed to the bottom of the vertical rod 22, and the connecting plate 23 is engaged with a clamping plate 3.

[0037] The specific working principle is: when the deformation column 9 moves, the clamping plate 3 can be used to drive the connecting plate 23 to move synchronously. Under the action of the connecting plate 23, the vertical rod 22 can be driven to move synchronously in the inner cavity of the vertical tube 21 and the first spring 20 can be driven to stretch and elastically deform. When the pressing plate 10 moves upward and separates from the deformation column 9, the deformation column 9 can be automatically reset under the action of the elastic force of the first spring 20.

[0038] Example 3, please refer to the attached figure in the specification Figure 1 A device for circular arc deformation of automobile longitudinal beam channel steel also includes: a plurality of groups of second screw holes 13 are opened at the upper end of the outer wall of the fixing frame 8, and a plurality of groups of first bolts 1 with threads matching the second screw holes 13 are penetrated through the outer walls of the fourth mounting frames 19.

[0039] The specific working principle is: screw the first bolt 1 to separate it from the second screw hole 13, and then move the fourth installation frame 19 upward to separate it from the fixed frame 8, so as to facilitate the disassembly and replacement of the third installation frame 15.

[0040] Example 4, please refer to the attached figure in the specification Figure 1A device for circular arc deformation of automobile longitudinal beam channel steel also includes: the outer walls of multiple groups of first deformed bottom frames 7 are all sleeved with first installation frames 6 fixed to the bottom wall of the inner cavity of the fixed frame 8, the outer walls of multiple groups of first deformed bottom frames 7 are all opened with multiple groups of first screw holes 5, and the outer walls of multiple groups of first installation frames 6 are all penetrated with second bolts 4 that match the threads of the first screw holes 5.

[0041] The specific working principle is: screw the second bolt 4 at the corresponding position to separate it from the first screw hole 5, and then move the first deformable bottom frame 7 at the corresponding position upward to separate it from the first installation frame 6, so as to facilitate the disassembly and replacement of the first deformable bottom frame 7.

[0042] Example 5, please refer to the attached figure in the specification Figure 1 and 3 , a circular arc deformation device for a longitudinal beam channel steel of an automobile, further comprising: a plurality of groups of second deformation bottom frames 27 are installed at the bottom wall position of the inner cavity of the fixed frame 8, and the plurality of groups of second deformation bottom frames 27 are all arranged at the rear side position of the plurality of groups of first deformation bottom frames 7; a plurality of groups of second pressing assemblies are arranged at the bottom wall position of the first flat plate 2, and the plurality of groups of second pressing assemblies are all arranged at the rear side position of the plurality of groups of deformation columns 9; the second pressing assembly comprises a fifth mounting frame 25, and the fifth mounting frame 25 is arranged at the bottom wall position of the first flat plate 2; a second cylinder 24 is fixed at the bottom wall position of the inner cavity of the fifth mounting frame 25; the end of the vertical output shaft of the second cylinder 24 passes through the bottom wall of the fifth mounting frame 25 and is fixed with a pressing block 26; the plurality of groups of pressing blocks 26 are respectively arranged at the position directly above the plurality of groups of second deformation bottom frames 27; the bottom wall of the pressing block 26 and the bottom wall position of the inner cavity of the second deformation bottom frame 27 are both arranged in a planar shape.

[0043] The specific working principle is: when leveling, the automobile longitudinal beam channel steel workpiece to be leveled is placed in the second deformable bottom frame 27 at the corresponding position, and the second cylinder 24 at the corresponding position is started to extend and drive the pressing block 26 to move downward, so that the automobile longitudinal beam channel steel workpiece can be leveled.

[0044] Example 6, please refer to the attached figure in the specification Figure 1 and 3 , a device for circular arc deformation of automobile longitudinal beam channel steel, further comprising: second vertical plates 31 are installed at the top positions of the outer walls on both sides of multiple groups of fifth mounting frames 25, positioning holes 28 are opened on the outer walls of multiple groups of second vertical plates 31, and elastic telescopic clamping components are arranged on the outer walls of multiple groups of second vertical plates 31. The elastic telescopic clamping components include a first vertical plate 29, the first vertical plate 29 is fixed at the bottom wall position of the first flat plate 2, the inner wall of the first vertical plate 29 and the outer wall of the second vertical plate 31 are in contact with each other, and a plug rod 32 engaged with the positioning hole 28 is movably penetrated on the first vertical plate 29, the longitudinal section of the plug rod 32 is set to be T-shaped, and multiple groups of second springs 30 fixed to the outer wall of the first vertical plate 29 are installed on the inner wall of the plug rod 32.

[0045] The specific working principle is: pulling the insertion rod 32 outward drives the second spring 30 to stretch and produce elastic deformation until the insertion rod 32 is separated from the positioning hole 28, and then moving the fifth installation frame 25 drives the second vertical plate 31 to separate from the first vertical plate 29, so as to facilitate the disassembly and replacement of the fifth installation frame 25.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for arc deformation of automobile longitudinal beam channel steel, comprising a fixing frame (8), characterized in that: A plurality of first deformable bottom frames (7) are evenly arranged at the top wall of the fixed frame (8); a plurality of first flat plates (2) are fixed at the upper end of the inner wall of the fixed frame (8); a plurality of deformable columns (9) matching the first deformable bottom frames (7) are movably penetrated on the plurality of first flat plates (2); the bottom walls of the plurality of deformable columns (9) and the bottom wall of the inner cavity of the first deformable bottom frame (7) are both arranged in an arc shape; a plurality of vertical telescopic components are fixed at the bottom wall of the first flat plate (2); the bottoms of the plurality of vertical telescopic components are in contact with the outer walls of the deformable columns (9); and the lower ends of the outer walls of the plurality of deformable columns (9) are all provided with card plates (3) engaging with the vertical telescopic components; The top end of the side wall of the fixed frame (8) is sleeved with a fourth installation frame (19), the inner walls of multiple groups of the fourth installation frames (19) are fixed with translation components, the bottom of the translation components is fixed with a first pressing component, and the first pressing component is arranged above the multiple groups of deformation columns (9).

2. The arc deformation device for automobile longitudinal beam channel steel according to claim 1, characterized in that: The vertical telescopic assembly comprises a vertical tube (21), the vertical tube (21) being fixed on the bottom wall of the first flat plate (2), a first spring (20) being fixed on the top wall of the inner cavity of the vertical tube (21), a vertical rod (22) penetrating the bottom wall of the vertical tube (21) being fixed on the bottom of the first spring (20), a connecting plate (23) in contact with the outer wall of the deformation column (9) being fixed on the bottom of the vertical rod (22), and the connecting plate (23) being engaged with the clamping plate (3) mutually.

3. The arc deformation device for automobile longitudinal beam channel steel according to claim 1, characterized in that: The translation assembly comprises a third mounting frame (15), the third mounting frame (15) being fixed on the outer wall of a fourth mounting frame (19), a strip hole (16) being provided at the bottom wall of the third mounting frame (15), a driving forward and reverse motor (18) being fixed at one side of the bottom wall of the inner cavity of the third mounting frame (15), a lead screw body (17) being fixed at the output end of the driving forward and reverse motor (18), and a lead screw nut (14) penetrating the strip hole (16) and being fixed to the first pressing assembly being installed on the outside of the lead screw body (17).

4. The arc deformation device for automobile longitudinal beam channel steel according to claim 3, characterized in that: The first pressing assembly comprises a second mounting frame (12), the second mounting frame (12) being fixed on the bottom wall of the lead screw nut (14), a first cylinder (11) being fixed on the bottom wall of the inner cavity of the second mounting frame (12), a vertical output shaft of the first cylinder (11) passing through the bottom wall of the second mounting frame (12) and being fixed with a pressing plate (10).

5. The arc deformation device for automobile longitudinal beam channel steel according to claim 1, characterized in that: The upper end of the outer wall of the fixing frame (8) is provided with a plurality of groups of second screw holes (13), and the outer walls of the plurality of groups of the fourth installation frames (19) are all provided with first bolts (1) threadably matched with the second screw holes (13).

6. The arc deformation device for automobile longitudinal beam channel steel according to claim 5, characterized in that: The outer walls of the plurality of groups of the first deformable bottom frames (7) are all sleeved with a first installation frame (6) fixed to the bottom wall of the inner cavity of the fixed frame (8); the outer walls of the plurality of groups of the first deformable bottom frames (7) are all provided with a plurality of groups of first screw holes (5); and the outer walls of the plurality of groups of the first installation frames (6) are all penetrated with second bolts (4) whose threads match the first screw holes (5).

7. The arc deformation device for automobile longitudinal beam channel steel according to claim 1, characterized in that: A plurality of sets of second deformable bottom frames (27) are installed at the bottom wall of the inner cavity of the fixed frame (8), and a plurality of sets of second pressing components are arranged at the bottom wall of the first flat plate (2), and the plurality of sets of second pressing components are respectively arranged at positions directly above the plurality of sets of second deformable bottom frames (27).

8. The arc deformation device for automobile longitudinal beam channel steel according to claim 7, characterized in that: The second pressing assembly comprises a fifth mounting frame (25), the fifth mounting frame (25) being arranged at the bottom wall position of the first flat plate (2), a second cylinder (24) being fixed at the bottom wall position of the inner cavity of the fifth mounting frame (25), and an end portion of a vertical output shaft of the second cylinder (24) passing through the bottom wall of the fifth mounting frame (25) and being fixed with a pressing block (26).

9. The arc deformation device for automobile longitudinal beam channel steel according to claim 8, characterized in that: Second vertical plates (31) are installed at the top positions of the outer walls on both sides of multiple groups of the fifth installation frames (25), positioning holes (28) are opened on the outer walls of multiple groups of the second vertical plates (31), and elastic telescopic snap-fit ​​components fixed to the bottom wall position of the first flat plate (2) are provided on the outer walls of multiple groups of the second vertical plates (31).

10. The arc deformation device for automobile longitudinal beam channel steel according to claim 9, characterized in that: The elastic telescopic engaging assembly comprises a first vertical plate (29), the first vertical plate (29) being fixed at the bottom wall of the first flat plate (2), the inner wall of the first vertical plate (29) being in contact with the outer wall of the second vertical plate (31), an insert rod (32) being movably provided on the first vertical plate (29) and being engaged with the positioning hole (28), and a plurality of groups of second springs (30) being fixed to the outer wall of the first vertical plate (29) being installed on the inner wall of the insert rod (32).

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