Automatic edge covering device and method for door plate

Abstract

The invention discloses an automatic edge covering device for a door plate. Comprising a base, a rack, a lower side moving sliding table, a lower side servo sliding table, an upper side 0-degree rolling wheel, an upper side 45-degree rolling wheel, an upper side servo sliding table, an upper side rolling wheel pressing electric cylinder, a left side pressing electric cylinder, a right side pressing electric cylinder, an upper side pressing plate, a door plate workpiece, a lower side 0-degree rolling wheel, a lower side 45-degree rolling wheel, a lower side rolling wheel pressing electric cylinder, a lower side moving sliding table electric cylinder and a lower side supporting plate. A positioning cylinder; the lower side servo sliding table is used for automatic edge covering operation of the lower side skin of the door plate; the upper side servo sliding table is used for automatic edge covering operation of the upper side skin of the door plate; before the lower side movable sliding table electric cylinder is used for edge covering of different door plate products, the upper side pressing plate and the lower side supporting plate can be flush with the upper side edge and the lower side edge of the door plate. One-time automatic edge covering forming of the upper side and the lower side of the door plate can be achieved, the problems that the stainless steel door plate workpiece edge covering procedure is large in production labor intensity and low in automation degree are solved, and the edge covering quality stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicle door panel processing machinery, and in particular to an automatic door panel hemming device and method. Background Art

[0002] At present, the hemming operation of stainless steel door panels mainly relies on manual hammering, which is not only inefficient but also difficult to ensure quality. By introducing an automatic hemming device, the transition from manual operation to automated operation can be achieved, thereby improving production efficiency and product quality. Existing automated hemming devices, for example, a car door hemming machine and a method for hemming a car door disclosed in the invention patent with Chinese patent publication number CN107597932A, include a bottom plate assembly, an hemming module arranged on the bottom plate assembly, a pre-pressing module arranged on the bottom plate assembly, a positive pressure module arranged on the bottom plate assembly, an hemming conveying assembly, a side conveying assembly, a positioning and clamping assembly arranged on the top of the bottom plate assembly, and a lifting assembly arranged at the bottom of the bottom plate assembly. The positioning and clamping assembly includes a support frame arranged on the top of the bottom plate assembly and a lifting cylinder arranged on the top of the support frame with a piston rod facing downward. The lifting cylinder is movable A positioning support frame is set at the free end of the plug rod, and the lifting cylinder is located directly above the edge wrapping module. The edge wrapping conveying assembly includes two left and right edge wrapping brackets, an edge wrapping conveyor belt arranged on the edge wrapping bracket and a first edge wrapping driving device arranged on the edge wrapping bracket to drive the edge wrapping conveyor belt. The side conveying assembly includes support rods slidably arranged on the left and right sides of the support frame and a second edge wrapping driving device arranged on the support frame. One end of the second edge wrapping driving device connected to the support rod is used to drive the support rod to reciprocate in the left and right directions, and the other end of the support rod is connected to the edge wrapping bracket. The lifting assembly includes an ejection cylinder arranged at the bottom of the base plate assembly with the piston rod facing upward and a lifting support frame arranged at the free end of the piston rod of the ejection cylinder. This type of edge wrapping machine cannot meet the complete edge wrapping requirements of the upper and lower and oblique sides of rail transit doors, requires manual secondary processing, and has low edge wrapping efficiency. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide an automatic door panel edge forming device and method suitable for the edge forming of rail transit vehicle door panels, which has a high degree of edge forming automation, stable edge forming quality and high edge forming efficiency.

[0004] Technical solution: An automatic door panel hemming device of the present invention comprises a base, a frame, a door panel workpiece and a support plate for placing the door panel workpiece, and also comprises a clamping mechanism, a roller mechanism and a positioning mechanism; the clamping mechanism comprises an upper clamping plate arranged above the lower support plate; the roller mechanism comprises a slidable upper roller group and a lower roller group arranged on the upper and lower sides of the support plate.

[0005] Furthermore, the upper roller group includes an upper 0-degree rolling wheel for achieving the upper door panel skinning to 0 degrees, an upper 45-degree rolling wheel for achieving the upper door panel skinning to 45 degrees, and an upper servo slide, and the upper servo slide drives the upper 45-degree rolling wheel and the upper 0-degree rolling wheel to move horizontally.

[0006] Furthermore, the upper roller assembly also includes an upper roller pressing electric cylinder, which is used to provide sufficient pressure for the roller when the upper side of the door panel is hemmed.

[0007] Furthermore, the lower roller group includes a lower 0-degree rolling wheel for achieving the edge wrapping of the lower door panel skin to 0 degrees, a lower 45-degree rolling wheel for achieving the edge wrapping of the lower door panel skin to 45 degrees, and a lower servo slide, and the lower servo slide drives the lower 45-degree rolling wheel and the lower 0-degree rolling wheel to move horizontally.

[0008] Furthermore, the lower roller assembly also includes a lower roller pressing electric cylinder, and the lower roller pressing electric cylinder is used to provide sufficient pressure for the roller when the door panel is hemmed on the upper side.

[0009] Furthermore, the upper clamping plate and the lower supporting plate can be flush with the upper and lower edges of the door panel workpiece, and a lower movable slide for adjusting the position of the lower supporting plate is provided at the bottom of the lower supporting plate.

[0010] Furthermore, the upper side of the upper clamping plate is connected to a left clamping electric cylinder and a right clamping electric cylinder for driving the upper clamping plate to move downward, so as to fix the door panel workpiece.

[0011] Furthermore, the positioning mechanism includes a positioning cylinder arranged under the lower support plate for positioning the door panel workpiece.

[0012] Furthermore, the frame includes a left support plate, an upper support plate and a right support plate for ensuring the rigidity and stability of the overall structure of the automatic hemming device.

[0013] A method for automatic hemming of door panels, characterized in that the automatic hemming device for door panels as described above is used, and the method comprises the following steps:

[0014] Step (1), start the electric cylinder of the lower movable slide to drive the lower movable slide to move horizontally, so that before the hemming of different door panel products, the upper pressing plate and the lower supporting plate can be flush with the upper and lower edges of the door panel workpiece;

[0015] Step (2), manually loading the material onto the lower support plate and positioning it using a positioning cylinder;

[0016] Step (3), the left clamping electric cylinder and the right clamping electric cylinder drive the upper clamping plate to move downward, so that the door panel workpiece is fixed;

[0017] Step (4), the lower servo slide drives the lower 45-degree rolling wheel and the lower 0-degree rolling wheel to move horizontally, so as to realize the automatic hemming operation of the lower side skin of the door panel. At the same time, the upper roller pressing electric cylinder presses downward to ensure that the roller pressure is sufficient when the door panel is hemmed, so that the final hemming effect meets the process requirements;

[0018] Step (5), the upper servo slide drives the upper 45-degree rolling wheel and the upper 0-degree rolling wheel to move horizontally, realizing the automatic hemming operation of the upper side skin of the door panel. At the same time, the lower roller clamping electric cylinder presses upward to ensure that the roller pressure is sufficient when the door panel is hemmed, so that the final hemming effect meets the process requirements.

[0019] Beneficial effects: Compared with the prior art, the present invention has the following advantages: (1) The present invention adopts the combination of roller groups on both sides to press and the upper side to press to realize the automatic edge forming of the upper and lower sides of the door panel at one time, and the degree of automation is high; (2) The present invention adopts a movable slide, a positioning cylinder, left and right side clamping electric cylinders and an upper side clamping plate to align the door panel workpiece and prevent the door panel workpiece from being displaced during processing, thereby ensuring processing accuracy and improving the workpiece production efficiency and the stability of edge quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0022] As shown in the figure, the present invention provides an automatic door panel hemming device, comprising a base 1, a frame, a door panel workpiece 14, a support plate 19 for placing the door panel workpiece 14, a clamping mechanism, a roller mechanism and a positioning mechanism.

[0023] The clamping mechanism includes an upper clamping plate 13 arranged above the lower support plate 19, and the upper sides of the upper clamping plate 13 are connected with a left clamping electric cylinder 9 and a right clamping electric cylinder 11 for driving the upper clamping plate 13 to move downward, so as to fix the door panel workpiece 14. The upper clamping plate 13 and the lower support plate 19 can be flush with the upper and lower edges of the door panel workpiece 14, and a lower movable slide 2 for adjusting the position of the lower support plate 19 is provided below the lower support plate 19.

[0024] The roller mechanism includes an upper roller group and a lower roller group which are slidably arranged on the upper and lower sides of the support plate 19. The upper roller group includes an upper 0-degree rolling wheel 4 for realizing the hemming of the upper door panel skin to 0 degrees, an upper 45-degree rolling wheel 5 for realizing the hemming of the upper door panel skin to 45 degrees, an upper servo slide 6 and an upper roller pressing electric cylinder 7. The upper servo slide 6 drives the upper 45-degree rolling wheel 5 and the upper 0-degree rolling wheel 4 to move horizontally, and the upper roller pressing electric cylinder 7 is used to provide sufficient pressure for the roller when the upper side of the door panel is hemmed. The lower roller group includes a lower 0-degree rolling wheel 15 for realizing the edging of the lower door panel skin to 0 degrees, a lower 45-degree rolling wheel 16 for realizing the edging of the lower door panel skin to 45 degrees, a lower servo slide 3 and a lower roller clamping cylinder 17. The lower servo slide 3 drives the lower 45-degree rolling wheel 16 and the lower 0-degree rolling wheel 15 to move horizontally. The lower roller clamping cylinder 17 is used to provide sufficient pressure for the roller when edging the upper side of the door panel.

[0025] The positioning mechanism includes a positioning cylinder 20 disposed under the lower support plate 19 for positioning the door panel workpiece 14 .

[0026] The frame includes a left support plate 8, an upper support plate 10 and a right support plate 12 for ensuring the rigidity and stability of the overall structure of the automatic hemming device.

[0027] The present invention provides a method for automatically hemming a door panel, comprising the following steps:

[0028] Step (1), the lower movable slide table electric cylinder 18 drives the lower movable slide table 2 to move horizontally, so that before the hemming of different door panel products, the upper pressing plate 13 and the lower supporting plate 19 can be flush with the upper and lower edges of the door panel workpiece 14;

[0029] Step (2) is to manually load the material to the lower support plate 19 and position it by the positioning cylinder 20;

[0030] Step (3), the left side pressing electric cylinder 9 and the right side pressing electric cylinder 11 drive the upper side pressing plate 13 to press and move downward, so that the door panel workpiece 14 is fixed;

[0031] Step (4), the lower servo slide 3 drives the lower 45-degree rolling wheel 16 and the lower 0-degree rolling wheel 15 to move horizontally, so as to realize the automatic edge wrapping operation of the lower side skin of the door panel. At the same time, the upper roller pressing electric cylinder 7 presses downward to ensure that the roller pressure is sufficient when the door panel is edge wrapped, so that the final edge wrapping effect meets the process requirements;

[0032] In step (5), the upper servo slide 6 drives the upper 45-degree rolling wheel 5 and the upper 0-degree rolling wheel 4 to move horizontally, realizing the automatic hemming operation of the upper side skin of the door panel. At the same time, the lower roller clamping electric cylinder 17 presses upward to ensure that the roller pressure is sufficient when the door panel is hemmed, so that the final hemming effect meets the process requirements.

Claims

1. An automatic door panel hemming device, comprising a base (1), a frame, a door panel workpiece (14) and a support plate (19) for placing the door panel workpiece (14), characterized in that: It also includes a clamping mechanism, a roller mechanism and a positioning mechanism; the clamping mechanism includes an upper clamping plate (13) arranged above the lower support plate (19); the roller mechanism includes an upper roller group and a lower roller group that are slidable and arranged on the upper and lower sides of the support plate (19).

2. The automatic door panel hemming device according to claim 1, characterized in that: The upper roller group comprises an upper 0-degree rolling wheel (4) for realizing the edge wrapping of the upper door panel skin to 0 degrees, an upper 45-degree rolling wheel (5) for realizing the edge wrapping of the upper door panel skin to 45 degrees, and an upper servo slide (6). The upper servo slide (6) drives the upper 45-degree rolling wheel (5) and the upper 0-degree rolling wheel (4) to move horizontally.

3. The automatic door panel hemming device according to claim 2, characterized in that: The upper roller assembly also includes an upper roller pressing electric cylinder (7), and the upper roller pressing electric cylinder (7) is used to provide sufficient pressure for the roller when the upper side of the door panel is hemmed.

4. The automatic door panel hemming device according to claim 2 or 3, characterized in that: The lower roller group comprises a lower 0-degree rolling wheel (15) for realizing the edge wrapping of the lower door panel skin to 0 degrees, a lower 45-degree rolling wheel (16) for realizing the edge wrapping of the lower door panel skin to 45 degrees, and a lower servo slide (3). The lower servo slide (3) drives the lower 45-degree rolling wheel (16) and the lower 0-degree rolling wheel (15) to move horizontally.

5. The automatic door panel hemming device according to claim 4, characterized in that: The lower roller assembly also includes a lower roller pressing electric cylinder (17), and the lower roller pressing electric cylinder (17) is used to provide sufficient pressure for the roller when the upper side of the door panel is hemmed.

6. The automatic door panel hemming device according to claim 1, characterized in that: The upper clamping plate (13) and the lower support plate (19) can be flush with the upper and lower edges of the door panel workpiece (14), and a lower movable slide (2) for adjusting the position of the lower support plate (19) is provided at the bottom of the lower support plate (19).

7. The automatic door panel hemming device according to claim 3, characterized in that: The upper side of the upper clamping plate (13) is connected to a left clamping electric cylinder (9) and a right clamping electric cylinder (11) for driving the upper clamping plate (13) to move downward, thereby fixing the door panel workpiece (14).

8. The automatic door panel hemming device according to claim 1, characterized in that: The positioning mechanism comprises a positioning cylinder (20) arranged under the lower support plate (19) and used for positioning the door panel workpiece (14).

9. The automatic door panel hemming device according to claim 1, characterized in that: The frame comprises a left side support plate (8), an upper side support plate (10) and a right side support plate (12) for ensuring the rigidity and stability of the overall structure of the automatic hemming device.

10. A method for automatic hemming of door panels, characterized in that: The automatic door panel hemming device according to any one of claims 1 to 9 comprises the following steps: Step (1), starting the lower movable slide electric cylinder (18) to drive the lower movable slide (2) to move horizontally, so that before the hemming of different door panel products, the upper pressing plate (13) and the lower supporting plate (19) can be flush with the upper and lower edges of the door panel workpiece (14); Step (2), manually loading the material onto the lower support plate (19), and positioning the material using a positioning cylinder (20); Step (3), the left side pressing electric cylinder (9) and the right side pressing electric cylinder (11) drive the upper side pressing plate (13) to move downward, so as to fix the door panel workpiece (14); In step (4), the lower servo slide (3) drives the lower 45-degree rolling wheel (16) and the lower 0-degree rolling wheel (15) to move horizontally, so as to realize the automatic edge wrapping operation of the lower side skin of the door panel. At the same time, the upper roller pressing electric cylinder (7) presses downward to ensure that the roller pressure is sufficient when the door panel is edge wrapped, so as to realize the final edge wrapping effect that meets the process requirements. In step (5), the upper servo slide (6) drives the upper 45-degree rolling wheel (5) and the upper 0-degree rolling wheel (4) to move horizontally, thereby realizing the automatic hemming operation of the upper side skin of the door panel. At the same time, the lower roller pressing electric cylinder (17) applies pressure upward to ensure that the roller pressure is sufficient when the door panel is hemmed, so that the final hemming effect meets the process requirements.

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