Carriage plate edge folding device

Abstract

The invention discloses a carriage plate edge folding device, and belongs to the technical field of plate edge folding. The upper edge folding assembly is mounted on a rack in a liftable manner; the upper die is rotationally mounted on the lower side of the upper edge folding assembly around the vertex I of the upper die; the lower edge folding assembly is installed on the machine frame in a lifting mode. The lower die is rotationally mounted on the upper side of the lower edge folding assembly around the vertex II of the lower die; and the two control assemblies are separately arranged on the two sides of the lower mold and used for controlling the lower mold to rotate in different directions. Through cooperative use of the upper edge folding assembly and the lower edge folding assembly, the automatic edge folding process of the carriage plate is achieved, and the carriage plates of different specifications and thicknesses can be efficiently treated; in the edge folding process, the lower die is controlled by the control assembly to rotate by the specific angle a in different directions, so that the edge folding angle is accurately controlled, it is guaranteed that the carriage plate body is attached to the workbench, and the problem that folding marks are locally generated due to tilting of the carriage plate body is solved.

Description

Technical Field

[0001] The invention relates to the technical field of plate folding, and in particular to a carriage plate folding device. Background Art

[0002] In the car body panel manufacturing industry, the folding process is a key production link, which is directly related to the assembly accuracy, structural strength and appearance quality of the product. The traditional folding method generally uses the direct relative extrusion of the upper mold and the lower mold to achieve the bending of the car body panel. However, this method has certain technical defects when processing large-size car body panels. Specifically, when the edge of the car body panel is bent, the car body panel on the bent part will warp up. Since the main body of the car body panel is heavy, this will cause uncontrollable secondary bending between the main body of the car body panel and the edge of the mold, and then produce unnecessary creases on the contact surface, which seriously affects the final quality of the product. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the present invention provides a carriage plate folding device, which avoids the warping of the carriage plate main body by keeping the carriage plate main body in contact with the workbench at all times during the bending process.

[0004] The present invention adopts the following technical solution: a car body plate folding device, comprising an upper mold and a lower mold that cooperate with each other, and also comprising: The upper folding assembly is installed on the frame in a liftable manner; the upper mold is installed on the lower side of the upper folding assembly by rotating around the vertex I of the upper mold; The lower folding assembly is installed on the frame in a liftable manner; the lower mold is installed on the upper side of the lower folding assembly by rotating around the vertex II of the lower mold; Two control components are disposed on both sides of the lower mold and are used to control the lower mold to rotate in different directions; In which, during the process of the lower folding component controlling the lower mold to rise and complete the folding operation, the control component on one side controls the lower mold to rotate an angle a, and the control component on the other side does not work; the angle a and half of the folding angle of the lower mold are complementary angles.

[0005] Furthermore, the upper folding component comprises: A lifting beam is installed on the frame in a liftable manner; A vertical slide rail fixed to the lower side of the lifting beam; A guide plate is fixed at the lower end of the vertical slide rail, and an arc-shaped slide groove is provided on the guide plate; the upper mold is slidably installed in the arc-shaped slide groove, and the center of the arc-shaped slide groove coincides with the vertex I of the upper mold; A slider, slidably mounted on the vertical slide rail; A spring connected between the slider and the vertical slide rail, the spring providing the slider with a force to move upward along the vertical slide rail; A connecting rod is connected between the upper mold and the slider.

[0006] Guide grooves are provided on both sides of the vertical slide rail, and slide pins are fixed on both sides of the slide block, and the slide pins are slidably inserted into the guide grooves.

[0007] The lower side of the upper mold is a convex ridge, and a connecting plate is fixed on the upper side of the upper mold; a plurality of rollers distributed in an arc shape are fixed on the upper side of the connecting plate, and the rollers are rollingly installed in the arc-shaped slide groove.

[0008] The lower folding edge assembly comprises: Lifting cylinder, fixed on the frame; A lifting platform, fixed to the lifting end of the lifting cylinder; A plurality of hinged ear plates are fixed on the lifting platform and used for hingedly mounting the lower mold.

[0009] The upper side of the lower mold is an angle groove, and the lower side of the lower mold is provided with a plurality of through grooves; the end of the lower mold and the inner walls on both sides of the through groove are respectively hinged to the corresponding hinged ear plates through hinge shafts; at least one of the hinge shafts is installed with a torsion spring for maintaining the initial position of the lower mold.

[0010] The control component comprises: A limiting strip is fixed on one side of the lower mold; the limiting strip has a limiting surface; A positioning rod, movably arranged on one side of the limiting strip, and a pressure wheel cooperating with the limiting surface is rotatably mounted on one end of the positioning rod close to the limiting strip; The control cylinder is connected to the side of the positioning rod away from the limiting strip and is used to control the position of the pressure wheel on the positioning rod relative to the limiting surface.

[0011] The control cylinder is fixed on the lower side of the horizontal beam, and the positioning rod is horizontally slidably installed on the lower side of the horizontal beam.

[0012] A U-shaped support is fixed on the lower side of the horizontal beam, and the positioning rod is slidably installed between the U-shaped support and the horizontal beam.

[0013] Workbenches for placing plates are arranged on both sides of the lower mold.

[0014] The beneficial effects of the present invention are: The upper folding assembly and the lower folding assembly are used together to realize the automatic folding process of the carriage plate. Both the upper mold and the lower mold can be raised and lowered, and rotated around their vertices respectively. This design makes the folding operation more flexible and can efficiently process carriage plates of different specifications and thicknesses. During the folding process, the control component controls the lower mold to rotate in different directions at a specific angle a, so that the folding angle can be precisely controlled. When the angle a is complementary to half of the folding angle of the lower mold, precise folding can be achieved, and one side of the lower mold is flush with the workbench, ensuring that the main body of the car panel fits the workbench, avoiding the problem of local creases caused by the warping of the main body of the car panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The present invention is a stereoscopic diagram of a car body panel folding device.

[0017] Figure 2 The present invention is a left side view of a car body panel folding device.

[0018] Figure 3 The present invention is a front view of a car body panel folding device.

[0019] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0020] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0021] Figure 6 The working process of the present invention is shown in FIG. Figure 1 .

[0022] Figure 7 The working process of the present invention is shown in FIG. Figure 2 .

[0023] Figure 8 The working process of the present invention is shown in FIG. Figure 3 .

[0024] Description of reference numerals: 1. Upper mold; 11. Vertex I; 12. Connecting plate; 13. Roller; 2. Lower die; 21. Vertex II; 22. Through slot; 23. Articulated shaft; 24. Torsion spring; 3. Upper folding assembly; 31. Lifting beam; 32. Vertical slide rail; 321. Guide groove; 33. Guide plate; 331. Arc slide groove; 34. Sliding block; 341. Sliding pin; 35. Spring; 36. Connecting rod; 4. Lower folding assembly; 41. Lifting cylinder; 42. Lifting platform; 43. Articulated ear plate; 5. Control assembly; 51. Limiting strip; 511. Limiting surface; 52. Positioning rod; 521. Pressing wheel; 53. Control cylinder; 54. U-shaped support; 6. Horizontal beam; 7. Workbench. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1: like Figures 1 to 3 As shown, the present invention provides a car body panel folding device, which mainly includes an upper folding assembly 3 and a lower folding assembly 4. The upper folding assembly 3 is used to control the lifting and lowering of the upper mold 1, and the lower folding assembly 4 is used to control the lifting and lowering of the lower mold 2. During the bending process, the lower mold 2 and the upper mold 1 cooperate to extrude the plate to achieve the bending of the side of the plate.

[0027] Combination Figures 1 to 3 As shown, the upper folding assembly 3 is provided with multiple groups, all of which are fixed to the lower side of the lifting beam 31. The lifting beam 31 is slidably connected to the frame, and the height of the lifting beam 31 is controlled by a lifting device. The lifting device can adopt the existing technology and is not further limited in this embodiment. The upper folding assembly 3 includes a vertical slide rail 32 docked at the lower side of the lifting beam 31, and the two sides of the vertical slide rail 32 are fixedly connected to the lifting beam 31 by flange plates and bolts. A guide plate 33 is fixedly connected to the lower end of the vertical slide rail 32, and an arc-shaped slide groove 331 is provided on the guide plate 33.

[0028] The lower side of the upper mold 1 is a convex ridge, and a connecting plate 12 is welded and fixed on the upper side of the upper mold 1. A plurality of rollers 13 distributed in an arc shape are fixed on the upper side of the connecting plate 12, and the rollers 13 are rollingly installed in the arc groove 331 on the guide plate 33. Among them, the center of the arc groove 331 coincides with the vertex I11 of the upper mold 1, so when the rollers 13 of the upper mold 1 move along the arc groove 331, the position of the vertex I11 of the upper mold 1 does not change.

[0029] Recombination Figure 4As shown, in order to control the upper mold 1 in a non-working state to be basically in the middle position, a reset mechanism is connected between the upper mold 1 and the vertical slide rail 32. Specifically: a vertical elongated groove is provided on one side of the vertical slide rail 32, and vertical guide grooves 321 are provided on both side walls of the elongated groove; the slider 34 is slidably installed in the elongated groove, and at least two sliding pins 341 are fixed on both sides of the slider 34. The sliding pins 341 are slidably inserted into the guide grooves 321 to ensure that the slider 34 can move up and down stably in the elongated groove. The connecting rod 36 is hingedly connected between the middle of the upper mold 1 and the side of the slider 34, and the spring 35 is connected between the upper end of the slider 34 and the vertical slide rail 32; the spring 35 gives the slider 34 a force to move upward along the vertical slide rail 32, and then the upper mold 1 is rotated to a basically centered position through the connecting rod 36, as shown in FIG. Figure 3 shown.

[0030] Combination Figures 1 to 3 As shown, the lower folding assembly 4 includes a pair of lifting cylinders 41 fixed on the frame, and the piston rod ends of the two lifting cylinders 41 are fixed with a lifting platform 42, and the lifting platform 42 is opposite to the lifting beam 31. A plurality of hinged ear plates 43 for mounting the lower mold 2 are welded on the lifting platform 42.

[0031] Recombination Figure 5 As shown, the upper side of the lower mold 2 is an angle groove that cooperates with the convex edge of the upper mold 1, and the folding of the plate is achieved through the cooperation of the convex edge and the angle groove. A plurality of through grooves 22 are opened in the middle of the lower mold 2, and the two ends of the lower mold 2 and the inner walls on both sides of the through grooves 22 are respectively hinged to the corresponding hinged ear plates 43 through hinge shafts 23, and the lower mold 2 can rotate around the hinge shaft 23; wherein the hinge shaft 23 is coaxial with the vertex II 21 of the lower mold 2. In order to control the lower mold 2 to be basically in the middle position in the non-working state, in each through groove 22, at least one hinge shaft 23 is provided with a fixed torsion spring 24, and the two ends of the torsion spring 24 are in contact with the lower side surface of the lower mold 2; under the torsion cooperation of multiple torsion springs 24, the lower mold 2 is basically in the center position, as shown in FIG. Figure 3 shown.

[0032] Embodiment 2: Based on the above embodiment 1, Figures 1 to 3 As shown, during folding, the lower folding component 4 controls the lower mold 2 to rise, so that the lower mold 2 contacts the upper mold 1 to achieve folding of the plate. During the operation, the lower mold 2 and the upper mold 1 can rotate freely. In order to accurately control the rotation timing and angle of the lower mold 2, this embodiment 2 provides a control component 5. A group of relative control components 5 are respectively set on both sides of the lower mold 2, and the two control components 5 in each group are symmetrically arranged at both ends of the lower mold 2 and work synchronously.

[0033] A workbench 7 for placing a plate is provided on both sides of the lower mold 2, and both ends of the workbench 7 are supported on a horizontal beam 6. During operation, the plate is placed on the workbench 7 on one side, and the edge of the plate is placed between the lower mold 2 and the upper mold 1.

[0034] The control assembly 5 includes a limit bar 51 arranged at one end of the lower mold 2, the limit bar 51 is embedded in the sink groove at the end of the lower mold 2, and is fixedly connected to the lower mold 2 by bolts. The limit bar 51 is "L"-shaped, and a limit surface 511 is arranged on the limit bar 51. The control cylinder 53 is fixed on the lower side of the horizontal beam 6, and the piston rod end of the control cylinder 53 is connected to a positioning rod 52, and the positioning rod 52 is rotatably installed with a pressure wheel 521 toward one end of the limit bar 51. A U-shaped support 54 is fixed on the lower side of the horizontal beam 6, and the positioning rod 52 is slidably installed between the U-shaped support 54 and the horizontal beam 6. The positioning rod 52 can be stably moved horizontally by limiting the positioning rod 52 by the U-shaped support 54. The control cylinder 53 is used to control the positioning rod 52 to slide along the U-shaped support 54 to adjust the pressure wheel 521 to extend or retract the U-shaped support 54. When the adjusting pressing wheel 521 is extended, the adjusting pressing wheel 521 is opposite to the limiting strip 51 on the same side, so as to control the turning direction of the lower mold 2 during its ascending process.

[0035] Working principle: Combination Figure 2 ,as well as Figures 6 to 8 As shown; When in use, the plate is placed on the workbench 7 on the right, with the left side of the plate located between the lower mold 2 and the upper mold 1; the lifting beam 31 descends, driving the upper mold 1 to descend to a position in contact with the plate; the control cylinder 53 on the right extends, so that the pressure wheel 521 at the end of the positioning rod 52 is above the limit bar 51; the lifting cylinder 41 extends, driving the lower mold 2 to rise; when the upper side of the lower mold 2 is substantially parallel to the workbench 7, that is, when the lower mold 2 contacts the plate, the pressure wheel 521 begins to contact the limit surface 511 on the limit bar 51, as shown in FIG. Figure 6 As shown; As the lifting cylinder 41 continues to extend, the lower mold 2 continues to rise, and with the cooperation of the pressing wheel 521 and the limit bar 51, the lower mold 2 begins to rotate clockwise, and the lower mold 2 cooperates with the upper mold 1 to bend the left side of the plate. Figure 7 As shown; When the lifting cylinder 41 is extended to the right position, Figure 8 As shown, the lower mold 2 rotates by an angle a, and the angle a is complementary to half of the folding angle of the lower mold 2. At this time, the right side of the lower mold 2 is just flush with the workbench 7, and the main body of the sheet is supported on the workbench 7 on the right side. The left side of the sheet is folded into a right angle by the lower mold 2 and the upper mold 1; The control cylinder 53 on the right side is controlled to retract, and then the lifting beam 31 and the lifting cylinder 41 are reset, and the plate is pushed onto the workbench 7 on the left side. According to the above steps, the right side of the plate is bent.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A car body panel folding device, comprising an upper mold (1) and a lower mold (2) that cooperate with each other, characterized in that: Also includes: The upper folding assembly (3) is mounted on the frame in a liftable manner; the upper mold (1) is rotatably mounted on the lower side of the upper folding assembly (3) around the vertex I (11) of the upper mold (1); The lower folding assembly (4) is mounted on the frame in a liftable manner; the lower mold (2) is rotatably mounted on the upper side of the lower folding assembly (4) around the vertex II (21) of the lower mold (2); Two control components (5) are disposed on both sides of the lower mold (2) and are used to control the lower mold (2) to rotate in different directions; In the process where the lower folding component (4) controls the lower mold (2) to rise and complete the folding operation, the control component (5) on one side controls the lower mold (2) to rotate an angle a, and the control component (5) on the other side does not work; the angle a and half of the folding angle of the lower mold (2) are complementary angles.

2. A car body panel folding device according to claim 1, characterized in that: The upper folding edge component (3) comprises: A lifting beam (31) is installed on the frame in a liftable manner; A vertical slide rail (32) fixed to the lower side of the lifting beam (31); A guide plate (33) is fixed to the lower end of the vertical slide rail (32), and an arc-shaped slide groove (331) is provided on the guide plate (33); the upper mold (1) is slidably installed in the arc-shaped slide groove (331), and the center of the arc-shaped slide groove (331) coincides with the vertex I (11) of the upper mold (1); A slider (34) slidably mounted on the vertical slide rail (32); A spring (35) connected between the slider (34) and the vertical slide rail (32), wherein the spring (35) provides the slider (34) with a force to move upward along the vertical slide rail (32); A connecting rod (36) is connected between the upper mold (1) and the slider (34).

3. A car body panel folding device according to claim 2, characterized in that: Guide grooves (321) are provided on both sides of the vertical slide rail (32), and slide pins (341) are fixed on both sides of the slide block (34), and the slide pins (341) are slidably inserted into the guide grooves (321).

4. A car body panel folding device according to claim 2, characterized in that: The lower side of the upper mold (1) is a convex ridge, and a connecting plate (12) is fixed to the upper side of the upper mold (1); a plurality of rollers (13) distributed in an arc shape are fixed to the upper side of the connecting plate (12), and the rollers (13) are rollingly mounted in the arc-shaped slide groove (331).

5. A car body panel folding device according to claim 1, characterized in that: The lower folding edge component (4) comprises: A lifting cylinder (41) is fixed on the frame; A lifting platform (42) fixed to the lifting end of the lifting cylinder (41); A plurality of hinged ear plates (43) are fixed on the lifting platform (42) and are used for hingedly mounting the lower mold (2).

6. A car body panel folding device according to claim 5, characterized in that: The upper side of the lower mold (2) is an angle groove, and the lower side of the lower mold (2) is provided with a plurality of through grooves (22); the end of the lower mold (2) and the inner walls on both sides of the through grooves (22) are respectively hinged to corresponding hinged ear plates (43) via hinge shafts (23); at least one of the hinge shafts (23) is provided with a torsion spring (24) for maintaining the initial position of the lower mold (2).

7. A car body panel folding device according to claim 1, characterized in that: The control component (5) comprises: A limiting strip (51) is fixed on one side of the lower mold (2); the limiting strip (51) has a limiting surface (511); A positioning rod (52) movably arranged on one side of the limiting strip (51); a pressure wheel (521) cooperating with the limiting surface (511) is rotatably mounted on one end of the positioning rod (52) close to the limiting strip (51); A control cylinder (53) is connected to a side of the positioning rod (52) away from the limiting strip (51) and is used to control the position of the pressure wheel (521) on the positioning rod (52) relative to the limiting surface (511).

8. A car body panel folding device according to claim 7, characterized in that: The control cylinder (53) is fixed on the lower side of the horizontal beam (6), and the positioning rod (52) is horizontally slidably installed on the lower side of the horizontal beam (6).

9. A car body panel folding device according to claim 8, characterized in that: A U-shaped support (54) is fixed to the lower side of the horizontal beam (6), and the positioning rod (52) is slidably installed between the U-shaped support (54) and the horizontal beam (6).

10. The vehicle compartment panel folding device according to claim 1, characterized in that: Workbenches (7) for placing plates are arranged on both sides of the lower mould (2).

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