Device for cutting U-shaped reinforcer of automobile

Abstract

The utility model discloses a device for cutting an automobile U-shaped reinforcer, which comprises a U-shaped reinforcer guide rail, fixing plates and a cutter assembly, the fixing plates are cuboid-shaped with grooves, the grooves of the two fixing plates are oppositely aligned to define a cuboid with a hollow middle, the cutter assembly vertically extends into a hollow body defined by the grooves, and the U-shaped reinforcer guide rail is arranged on the cutter assembly. A square through hole material guide opening is formed in the face, where the groove is located, of the fixing plate, a U-shaped reinforcer guide rail is arranged in the material guide opening, a U-shaped reinforcer to be cut is arranged on the U-shaped reinforcer guide rail, and the cutter assembly moves downwards to cut the U-shaped reinforcer under the action of external force. The cutter assembly comprises a movable cutter holder and a movable cutter, the movable cutter is rotationally connected with the movable cutter holder, the section of the movable cutter is circular, the circumference of the movable cutter is a blade edge, and the circumference of the movable cutter is evenly abraded in the cutting process; the cutter replacement frequency is reduced, and the production efficiency is improved; scrap iron is pushed out from the scrap iron outlet through the edge of the movable tool apron, the scrap stacking problem can be avoided, and the service life of the tool is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a device for cutting a U-shaped reinforcement of an automobile. Background Art

[0002] In modern automobile manufacturing, most of the U-shaped reinforcements used in automobile door sills, doors, window frames, etc. are formed by cold bending steel strips and then cut into single U-shaped reinforcements. To ensure automobile safety while reducing weight and saving energy, the strength of the steel strip material must be improved. With the significant increase in the strength of the steel strip material, the difficulty of cutting automobile U-shaped reinforcements also increases, which in turn leads to increased wear of the cutting tools. The tools need to be frequently replaced during the production process, which not only affects on-site production efficiency but also adds additional costs.

[0003] Chinese Patent No. CN 213764292 U discloses a tool for cutting triangular tubular beams. The tool features a pointed tip that quickly pierces the surface of the triangular beam, creating an incision. Compared to conventional flat blades, the pointed tool cuts triangular beams more quickly because the tip exerts greater pressure on the surface, resulting in a faster incision. The tip also reduces the normal pressure from the tool, making it less susceptible to deformation at the cutting point. The included groove removes iron chips generated by the two cutting edges, preventing them from accumulating in the fixture or at the cutting point. However, the tool is not suitable for cutting U-shaped reinforcements in automobiles.

[0004] In summary, developing a device suitable for cutting automobile U-shaped reinforcements to avoid the problem of iron chips accumulation, increase the life of cutting tools, and reduce production costs; reducing the frequency of tool replacement and improving production efficiency have become issues that relevant technical personnel in this field urgently need to solve. Utility Model Content

[0005] The purpose of the utility model is to provide a device for cutting automobile U-shaped reinforcements, which can avoid the accumulation of iron chips during the cutting process, increase the service life of the cutting tool, reduce production costs, reduce the frequency of tool replacement, and improve production efficiency.

[0006] The purpose of this utility model is to solve the following technical solutions:

[0007] A device for cutting automobile U-shaped reinforcements, comprising a U-shaped reinforcement guide rail, a fixed plate and a tool assembly, wherein the fixed plate is in the shape of a rectangular parallelepiped with a groove, and the grooves of the two fixed plates are aligned facing each other to form a rectangular parallelepiped with a hollow center, and the tool assembly extends vertically into the hollow body formed by the grooves, and a square through-hole material guide port is provided on the surface of the fixed plate where the groove is located, and a U-shaped reinforcement guide rail is provided in the material guide port, and the U-shaped reinforcement to be cut is arranged on the U-shaped reinforcement guide rail, and the tool assembly moves downward under the action of external force to cut the U-shaped reinforcement; the tool assembly comprises a movable tool holder and a movable tool, and the movable tool is rotatably connected to the movable tool holder, and the cross-section of the movable tool is circular, and its circumference is a blade edge, and the circumference of the movable tool is evenly worn during the cutting process.

[0008] The above-mentioned device for cutting automobile U-shaped reinforcements, the overall shape of the movable knife seat is a rectangular parallelepiped, symmetrical to the X-center axis, and an end face perpendicular to the X-center axis is set as a cutting end, the cutting end includes a transition fillet, a blade edge, a blade edge transition section and a movable knife inlaid arc section, the movable knife inlaid arc section is an arc concave inwardly greater than 180 degrees, the center of the arc is located on the X-center axis, the two ends of the movable knife inlaid arc section are respectively connected to the blade edge by the blade edge transition section, the blade edge is smoothly connected to the adjacent side edge through the transition fillet, the angle formed by the side edge and the blade edge is α, and α is an acute angle; the iron chips generated by the movable knife cutting the U-shaped reinforcement accumulate in the direction of the blade edge, and after the movable knife completely cuts off the U-shaped reinforcement, the blade edge pushes the iron chips out of the iron chip outlet under the action of inertia.

[0009] In the above-mentioned device for cutting automobile U-shaped reinforcements, the thickness of the movable knife is consistent with the thickness of the movable knife seat.

[0010] The above-mentioned device for cutting automobile U-shaped reinforcements is provided with guide plates on both sides of the movable knife seat, and the guide plates are arranged between the two fixed plates.

[0011] The above-mentioned device for cutting automobile U-shaped reinforcements is provided with an iron chip outlet on the U-shaped reinforcement guide rail and the fixed plate, and the iron chip outlet is arranged just below the movable knife.

[0012] The above-mentioned device for cutting automobile U-shaped reinforcements is further provided with a plurality of movable tool holder mounting holes and two movable tool holder positioning pin holes on the movable tool holder. The two movable tool holder positioning pin holes are used for precise positioning of the movable tool holder and the external drive device. The plurality of movable tool holder mounting holes are fixedly connected to the external drive device by bolts and nuts.

[0013] Beneficial effects

[0014] The utility model provides a device for cutting automobile U-shaped reinforcements. The device utilizes a rotatable cylindrical movable knife arranged on a movable knife seat so that the circumference of the movable knife is a cutting edge. During the cutting process, the movable knife can rotate within the movable knife seat, so that the movable knife edge is evenly worn, which can reduce the frequency of tool replacement and improve production efficiency. Iron chips generated by the movable knife cutting the U-shaped reinforcement are pushed out from the iron chip outlet through the cutting edge of the movable knife seat, which can avoid the problem of chip accumulation, increase the service life of the tool and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the drawings.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 yes Figure 1 Cross-sectional view of section AA;

[0018] Figure 3 yes Figure 1 A top view of

[0019] Figure 4 It is a structural diagram of the tool assembly in the utility model;

[0020] Figure 5 This is a schematic structural diagram of the knife holder in the utility model;

[0021] Figure 6 yes Figure 5 A partial enlarged view of part B.

[0022] The numbers in the figure represent: 1. movable knife seat, 2. movable knife, 3. U-shaped reinforcement, 4. U-shaped reinforcement guide rail, 5. fixed plate, 6. guide plate, 7. material guide port, 8. X-center axis, 10. iron chip outlet, 11. movable knife seat mounting hole, 12. movable knife seat locating pin hole, 13. side vertical edge, 14. transition fillet, 15. blade edge, 16. blade edge transition section, 17. movable knife inlaid arc section, 18. groove. DETAILED DESCRIPTION

[0023] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4The present invention provides a device for cutting a U-shaped reinforcement of an automobile, comprising a U-shaped reinforcement guide rail 4, a fixing plate 5 and a tool assembly. The fixing plate 5 is in the shape of a cuboid with a groove 18. The grooves 18 of the two fixing plates 5 are aligned facing each other to form a cuboid with a hollow center. The tool assembly extends vertically into the hollow body surrounded by the grooves 18. A square through-hole guide port 7 is provided on the surface of the fixing plate 5 where the groove 18 is located. A U-shaped reinforcement guide rail 4 is provided in the guide port 7. The U-shaped reinforcement 3 to be cut is arranged on the U-shaped reinforcement guide rail 4. The tool assembly moves downward under the action of external force to cut the U-shaped reinforcement 3; the tool assembly comprises a movable knife seat 1 and a movable knife 2, the movable knife 2 is rotatably connected to the movable knife seat 1, the cross-section of the movable knife 2 is circular, and its circumference is a blade edge. During the cutting process, the movable knife 2 is evenly worn around the circumference.

[0024] See Figure 5 、 Figure 6 The movable blade seat 1 is in the shape of a rectangular parallelepiped as a whole and is symmetrical to the X-axis 8. An end face perpendicular to the X-axis 8 is set as a cutting end. The cutting end includes a transition fillet 14, a blade edge 15, a blade edge transition section (16) and a movable blade embedded arc section 17. The movable blade embedded arc section 17 is an arc greater than 180 degrees concave inward, and the center of the arc is located on the X-axis 8. The two ends of the movable blade embedded arc section 17 are connected to the blade edge 15 through the blade edge transition section (16). The blade edge 15 is smoothly connected to the adjacent side edge 13 through the transition fillet 14. The angle formed by the side edge (13) and the blade edge (15) is α, and α is an acute angle. The iron chips generated by the movable blade 2 cutting the U-shaped reinforcement 3 are accumulated in the direction of the blade edge 15. After the movable blade 2 completely cuts off the U-shaped reinforcement 3, the blade edge 15 pushes the iron chips out of the iron chip outlet (10) under the action of inertia.

[0025] See Figure 2 The thickness of the movable knife 2 is consistent with the thickness of the movable knife seat 1.

[0026] See Figure 1 、 Figure 3 Guide plates 6 are provided on both sides of the movable knife seat 1 , and the guide plates 6 are arranged between the two fixed plates 5 .

[0027] See Figure 2 The U-shaped reinforcement guide rail 4 and the fixed plate 5 are also provided with an iron chip outlet 10, and the iron chip outlet 10 is arranged directly below the movable knife 2.

[0028] See Figure 1 、 Figure 4The movable tool holder 1 is also provided with a plurality of movable tool holder mounting holes 11 and two movable tool holder positioning pin holes 12. The two movable tool holder positioning pin holes 12 are used for accurately positioning the movable tool holder 1 with the external driving device. The plurality of movable tool holder mounting holes 11 are fixedly connected with the external driving device through bolts and nuts.

Claims

1. A device for cutting U-shaped reinforcements of automobiles, characterized in that: The invention comprises a U-shaped reinforcement guide rail (4), a fixed plate (5) and a tool assembly, wherein the fixed plate (5) is in the shape of a rectangular parallelepiped with a groove (18), the grooves (18) of the two fixed plates (5) are aligned facing each other to form a rectangular parallelepiped with a hollow center, the tool assembly vertically extends into the hollow body formed by the grooves (18), a square through-hole material guide port (7) is provided on the surface of the fixed plate (5) where the groove (18) is located, the material guide port (7) is provided with a U-shaped reinforcement guide rail (4), the U-shaped reinforcement (3) to be cut is arranged on the U-shaped reinforcement guide rail (4), and the tool assembly moves downward under the action of an external force to cut the U-shaped reinforcement (3); the tool assembly comprises a movable knife seat (1) and a movable knife (2), the movable knife (2) is rotatably connected to the movable knife seat (1), the cross section of the movable knife (2) is circular, and its circumference is all a blade edge, and the circumference of the movable knife (2) is evenly worn during the cutting process.

2. The device for cutting automobile U-shaped reinforcements according to claim 1, characterized in that: The movable blade seat (1) is in the shape of a rectangular parallelepiped as a whole and is symmetrical to the X-axis (8). An end surface perpendicular to the X-axis (8) is provided as a cutting end. The cutting end comprises a transition fillet (14), a blade edge (15), a blade edge transition section (16) and a movable blade embedded arc section (17). The movable blade embedded arc section (17) is an arc that is inwardly concave and has an angle of greater than 180 degrees. The center of the arc is located on the X-axis (8). The two ends of the movable blade embedded arc section (17) are respectively connected by the blade edge. The transition section (16) is connected to the blade edge (15), and the blade edge (15) is smoothly connected to the adjacent side edge (13) through a transition fillet (14). The angle formed by the side edge (13) and the blade edge (15) is α, and α is an acute angle. Iron chips generated by the movable knife (2) cutting the U-shaped reinforcement (3) are accumulated in the direction of the blade edge (15). After the movable knife (2) completely cuts off the U-shaped reinforcement (3), the blade edge (15) pushes the iron chips out from the iron chip outlet (10) under the action of inertia.

3. The device for cutting automobile U-shaped reinforcements according to claim 1, characterized in that: The thickness of the movable knife (2) is consistent with the thickness of the movable knife seat (1).

4. The device for cutting automobile U-shaped reinforcements according to claim 1, characterized in that: Guide plates (6) are also provided on both sides of the movable knife seat (1), and the guide plates (6) are arranged between the two fixed plates (5).

5. The device for cutting automobile U-shaped reinforcements according to claim 1, characterized in that: The U-shaped reinforcement guide rail (4) and the fixed plate (5) are also provided with an iron chip outlet (10), and the iron chip outlet (10) is arranged directly below the movable knife (2).

6. The device for cutting automobile U-shaped reinforcements according to claim 1, characterized in that: The movable knife seat (1) is further provided with a plurality of movable knife seat mounting holes (11) and two movable knife seat positioning pin holes (12). The two movable knife seat positioning pin holes (12) are used for accurately positioning the movable knife seat (1) and the external driving device. The plurality of movable knife seat mounting holes (11) are fixedly connected to the external driving device via bolts and nuts.

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