Sheet metal part edge covering device

Abstract

The invention discloses a sheet metal part edge covering device which comprises a base and an edge covering mechanism, and the edge covering mechanism comprises a movable die table, a lifting seat, a pressing die head and a positioning plate; the upper end of the base is horizontally and movably provided with two movable die tables with the adjustable distance, a lifting base is horizontally arranged above the base in a lifting mode, and the lower end of the lifting base is horizontally and movably provided with two downward pressing die heads with the adjustable distance and used in cooperation with the two movable die tables. Each movable die table is connected with the corresponding downward pressing die head through a linkage piece, one end of each linkage piece is fixed to the corresponding movable die table, and the other end of each linkage piece is slidably connected with the corresponding downward pressing die head in the longitudinal direction. And a positioning plate capable of abutting against the corresponding movable mold table is vertically and movably arranged in each linkage piece, the sheet metal part edge covering device can synchronously conduct double-edge edge covering operation on sheet metal parts of different sizes, and the working efficiency and practicability are greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of sheet metal part processing, and specifically, to a sheet metal part edge wrapping device. Background Art

[0002] A sheet metal part is a component made of sheet material, and its shape and size can be cut, bent, punched, welded, and assembled according to specific design requirements. When processing sheet metal parts, an edge wrapping process is involved. This process usually uses a stamping edge wrapping die to complete the edge wrapping process. The stamping edge wrapping die includes an upper die base and a lower die base. The upper die base is provided with a positive pressure knife, and the lower die base is provided with a bending punch for supporting the workpiece and a standard edge wrapping mechanism with a pre-bending insert. The stamping edge wrapping die uses the standard edge wrapping mechanism to drive the pre-bending insert to pre-bend the edge of the workpiece to form a hem, and then the press knife moving longitudinally presses the hem to complete the product edge wrapping.

[0003] After retrieval, the Chinese patent application number is: CN202321345603.6, which discloses a sheet metal part edge wrapping device, including side plates. The side plates are provided with motors, and a connecting column is fixedly connected to the side wall of the side plates. One end of the connecting column is fixedly connected with a fixed shell. A worm is arranged inside the fixed shell, and the output end of the motor is fixedly connected to the worm. A plurality of rotating columns are rotatably connected inside the fixed shell. A connecting plate is fixedly connected to the side wall of each rotating column. A worm gear is fixedly connected to the side wall of the middle rotating column, and the worm gears are all meshed with the worm. The other ends of the symmetrically arranged connecting plates up and down are rotatably connected with clamping plates.

[0004] The inventor found the following problems in the prior art during the implementation of the present invention:

[0005] The prior art can only perform edge wrapping treatment on one side of the sheet metal part at a time during use, reducing work efficiency.

[0006] Therefore, it is an urgent problem to be solved by the present invention to provide a sheet metal part edge wrapping device that can perform synchronous double-sided edge wrapping operations on sheet metal parts of different sizes during use, greatly improving work efficiency and practicality. Summary of the Invention

[0007] Aiming at the above technical problems, the purpose of the present invention is to overcome the problem that the prior art can only perform edge wrapping treatment on one side of the sheet metal part at a time during use, reducing work efficiency, and thus provides a sheet metal part edge wrapping device that can perform synchronous double-sided edge wrapping operations on sheet metal parts of different sizes during use, greatly improving work efficiency and practicality.

[0008] To achieve the above object, the present invention provides a hemming device for sheet metal parts, including: a base and a hemming mechanism, and the hemming mechanism includes: a moving die table, a lifting seat, a pressing die head and a positioning plate; wherein,

[0009] Two moving die tables with adjustable spacing are horizontally and movably arranged at the upper end of the base. A lifting seat is horizontally and liftably arranged above the base. Two pressing die heads with adjustable spacing and used in cooperation with the two moving die tables are horizontally and movably arranged at the lower end of the lifting seat. Each moving die table is connected to its corresponding pressing die head through a linkage. One end of each [shaped linkage is fixed on the moving die table, and the other end thereof is slidably connected to the corresponding pressing die head in the longitudinal direction. And a positioning plate capable of abutting against its corresponding moving die table is vertically and movably arranged inside each linkage to position the workpiece laid flat on the two moving die tables.

[0010] Preferably, a support table flush with the tops of the two moving die tables is vertically and fixedly arranged at the upper end of the base between the two moving die tables, and the two moving die tables are symmetrically arranged relative to the support table.

[0011] Preferably, a longitudinal chute adapted to the linkage is formed by partial inward depression on the side wall of the pressing die head facing away from the moving die table, and the upper end part of the linkage extends into the longitudinal chute and is slidably connected thereto.

[0012] Preferably, the device further includes an adjusting mechanism for adjusting the spacing between the two moving die tables, and the adjusting mechanism includes: an adjusting plate, an adjusting toothed plate and an adjusting gear; wherein,

[0013] An assembly groove is formed by partial inward depression at the upper end of the base, and two adjusting plates capable of extending into the assembly groove are respectively vertically and fixedly arranged at the bottoms of the two moving die tables. An adjusting gear is horizontally and rotatably arranged in the assembly groove between the two adjusting plates. Adjusting toothed plates meshing with it are respectively horizontally and fixedly arranged on the two adjusting plates at the upper and lower ends of the adjusting gear. One avoidance hole for the adjusting toothed plate to pass through is respectively horizontally penetrated on the two adjusting plates, and two avoidance holes communicating with the assembly groove and for the two adjusting toothed plates to pass through are also respectively horizontally penetrated at both ends of the base.

[0014] Preferably, the device further includes a first electric telescopic rod for driving the two positioning plates to move horizontally; wherein,

[0015] A first electric telescopic rod is horizontally and fixedly penetrated inside each linkage, and the telescopic end of the first electric telescopic rod is fixed on the positioning plate.

[0016] Preferably, the device further includes a lifting mechanism for driving the lifting seat to perform horizontal lifting in the vertical direction, and the lifting mechanism includes: a second electric telescopic rod and a vertical seat; wherein,

[0017] A vertically fixed inverted L-shaped vertical seat is provided at the upper end of the base beside the lifting seat, and a second electric telescopic rod is vertically penetrated and fixed at the top of the vertical seat, and the telescopic end of the second electric telescopic rod is fixed on the lifting seat.

[0018] Preferably, a guiding groove is formed by inward depression of a bottom part of the lifting seat, and a transverse guiding rod is horizontally fixed in the guiding groove. Transverse guiding holes for the transverse guiding rod to pass through are respectively horizontally penetrated and opened at the tops of the two pressing die heads, and the two pressing die heads are horizontally and movably assembled on the transverse guiding rod through the transverse guiding holes.

[0019] Preferably, two longitudinal guiding rods capable of passing through the top of the vertical seat are respectively vertically fixed at the tops of the lifting seats beside the second electric telescopic rod, and longitudinal guiding holes for the two longitudinal guiding rods to pass through are respectively vertically penetrated and opened on the vertical seat.

[0020] According to the above technical solution, the beneficial effects of the sheet metal part edge wrapping device provided by the present invention during use are as follows:

[0021] (1) During use, the distance between the two moving die tables is appropriately adjusted according to the size of the sheet metal part. After the adjustment is completed, the sheet metal part to be processed is horizontally placed on the two moving die tables, so that the positions on both sides of the sheet metal part that need to be edge wrapped are located at the edges of the moving die tables. Since the two pressing die heads are respectively connected to the two corresponding moving die tables through the linkage members, when the distance between the two moving die tables is adjusted, the distance between the two pressing die heads is adjusted accordingly, so that the inner walls of the two pressing die heads and the outer walls of the corresponding moving die tables are on the same vertical line, so as to drive the lifting seat to move in the vertical direction to drive the two pressing die heads to descend to simultaneously perform stamping on both sides of the sheet metal part to complete the edge wrapping operation, thereby greatly improving the edge wrapping efficiency.

[0022] (2) Since the distances between the two moving die tables and the two pressing die heads are adjustable, the entire device can perform edge wrapping operations on sheet metal parts of different sizes.

[0023] (3) When adjusting the distance between the two moving die tables by moving the two moving die tables, the linkage can drive the two pressing die heads to move accordingly and also adjust the distance between them. After adjustment, with the cooperation of the sliding grooves, the two pressing die heads can also descend or ascend with the lifting seat and will not be affected by the linkage. Therefore, only one adjustment mechanism can be used to simultaneously adjust the distances between the two moving die tables and the two pressing die heads, saving the usage cost.

[0024] (4) By driving the two positioning plates to position the sheet metal part, the two sides of the sheet metal part placed on the two moving die tables can be made symmetrical, so that the hemming positions on both sides of the sheet metal part are the same, avoiding affecting the hemming effect due to incorrect hemming positions.

[0025] In summary, the present invention can perform bilateral hemming operations on sheet metal parts of different sizes synchronously, greatly improving the working efficiency and practicality.

[0026] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part; and the parts not involved in the present invention are the same as or can be implemented using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the following specific implementation to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0028] Figure 1 is a schematic structural diagram of a sheet metal part hemming device provided in a preferred embodiment of the present invention;

[0029] Figure 2 is a schematic structural diagram of a sheet metal part hemming device provided in a preferred embodiment of the present invention at a certain moment during the working process;

[0030] Figure 3 is Figure 2 a structural cross-sectional view of;

[0031] Figure 4 is an assembly schematic diagram of the pressing die head and the moving die table of a sheet metal part hemming device provided in a preferred embodiment of the present invention.

[0032] DESCRIPTION OF THE REFERENCE NUMERALS

[0033] 1. Base; 2. Support platform; 3. Moving mold table; 4. Lifting seat; 5. Pressing mold head; 6. Linkage member; 7. Positioning plate; 8. Adjusting plate; 9. Adjusting toothed plate; 10. Adjusting gear; 11. First electric telescopic rod; 12. Second electric telescopic rod; 13. Vertical seat; 14. Horizontal guide rod; 15. Longitudinal guide rod; 16. Longitudinal chute. Detailed implementation manner

[0034] The following will describe the detailed implementation manner of the present invention in conjunction with the accompanying drawings. It should be understood that the detailed implementation manner described herein is only for explaining and illustrating the present invention, and is not used to limit the present invention.

[0035] As Figures 1-4 shown, a sheet metal part edge wrapping device provided by the present invention includes: a base 1 and an edge wrapping mechanism, and the edge wrapping mechanism includes: a moving mold table 3, a lifting seat 4, a pressing mold head 5 and a positioning plate 7; wherein,

[0036] Two moving mold tables 3 with adjustable spacing are horizontally and movably arranged at the upper end of the base 1, a lifting seat 4 is horizontally and liftably arranged above the base 1, and two pressing mold heads 5 with adjustable spacing and used in cooperation with the two moving mold tables 3 are horizontally and movably arranged at the lower end of the lifting seat 4. Each moving mold table 3 is connected to its corresponding pressing mold head 5 through a linkage member 6. One end of each linkage member 6 in the shape of [ is fixed on the moving mold table 3, and the other end is slidably connected to the corresponding pressing mold head 5 in the longitudinal direction. And a positioning plate 7 capable of abutting against its corresponding moving mold table 3 is vertically and movably arranged inside each linkage member 6 to position the workpiece laid flat on the two moving mold tables 3.

[0037] In the above solution, during use, as Figures 1-4 shown, the spacing between the two moving mold tables 3 is appropriately adjusted according to the size of the sheet metal part. After the adjustment is completed, the sheet metal part to be processed is horizontally placed on the two moving mold tables 3 so that the positions of the two sides of the sheet metal part that need to be edge wrapped are located at the edges of the moving mold tables 3. Since the two pressing mold heads 5 are respectively connected to their corresponding two moving mold tables 3 through the linkage members 6, therefore, when the spacing between the two moving mold tables 3 is adjusted, the spacing between the two pressing mold heads 5 is adjusted accordingly. As Figure 3 and Figure 4 shown, the inner walls of the two pressing mold heads 5 and the outer walls of their corresponding moving mold tables 3 are on the same vertical line, so as to drive the lifting seat 4 to move vertically to drive the two pressing mold heads 5 to descend to simultaneously punch the two sides of the sheet metal part to complete the edge wrapping operation, thereby greatly improving the edge wrapping efficiency.

[0038] In addition, since the distance between the two moving mold tables 3 and the two downward pressing mold heads 5 is adjustable, the entire device can perform hemming operations on sheet metal parts of different sizes.

[0039] When adjusting the distance between the two moving mold tables 3 by moving the two moving mold tables 3, the linkage member 6 can drive the two downward pressing mold heads 5 to move accordingly and also adjust the distance between them. After adjustment, with the cooperation of the chute 16, the two downward pressing mold heads 5 can also descend or ascend with the lifting seat 4 and are not affected by the linkage member 6. Therefore, only one adjustment mechanism can be used to adjust the distances between the two moving mold tables 3 and the two downward pressing mold heads 5 simultaneously, saving the usage cost.

[0040] In addition, by driving the two positioning plates 7 to position the sheet metal part, the two sides of the sheet metal part placed on the two moving mold tables 2 are made symmetrical, so that the hemming positions on both sides of the sheet metal part are the same, avoiding affecting the hemming effect due to incorrect hemming positions.

[0041] In a preferred embodiment of the present invention, a support table 2 flush with the tops of the two moving mold tables 3 is vertically and fixedly arranged at the upper end of the base 1 located between the two moving mold tables 3, and the two moving mold tables 3 are symmetrically arranged relative to the support table 2.

[0042] In the above solution, the fixedly arranged support table 2 is used to increase the support area of the two moving mold tables 3 for the sheet metal part.

[0043] In a preferred embodiment of the present invention, a longitudinal chute 16 adapted to the linkage member 6 is formed by partial inward depression on the side wall of the downward pressing mold head 5 facing away from the moving mold table 3, and the upper end portion of the linkage member 6 extends partially into the longitudinal chute 16 and is slidably connected thereto.

[0044] In the above solution, during use, when the two moving mold tables 3 are adjusting the distance, they can drive the two downward pressing mold heads 5 to move together to cooperate with the two moving mold tables 3 for distance adjustment. With the cooperation of the longitudinal chute 16 and the linkage member 6, the two downward pressing mold heads 5 after adjusting the distance can descend vertically and punch the sheet metal part horizontally placed on the two moving mold tables 3 to achieve the hemming operation.

[0045] In addition, a slide bar can be vertically and fixedly arranged in each longitudinal chute 16, and a through hole for the slide bar to pass through is vertically formed through the top of each linkage member 6 located in the longitudinal chute 16, and the through hole on the linkage member 6 is slidably assembled on the slide bar.

[0046] In a preferred embodiment of the present invention, the device further includes an adjusting mechanism for adjusting the distance between the two moving die tables 3. The adjusting mechanism includes: an adjusting plate 8, an adjusting toothed plate 9, and an adjusting gear 10; wherein,

[0047] The upper end portion of the base 1 is recessed inward to form an assembly groove. Two adjusting plates 8 that can extend into the assembly groove are vertically and fixedly arranged at the bottoms of the two moving die tables 3 respectively. An adjusting gear 10 is horizontally and rotatably arranged in the assembly groove between the two adjusting plates 8. Adjusting toothed plates 9 meshed with the adjusting gear 10 are horizontally and fixedly arranged on the two adjusting plates 8 at the upper and lower ends of the adjusting gear 10 respectively. First avoidance holes for the adjusting toothed plates 9 to pass through are horizontally and throughly opened on the two adjusting plates 8 respectively. Second avoidance holes that communicate with the assembly groove and allow the two adjusting toothed plates 9 to pass through are also horizontally and throughly arranged at both ends of the base 1 respectively.

[0048] In the above solution, during use, by rotating the adjusting gear 10, during its rotation, it can drive the two adjusting toothed plates 9 meshed with it to rotate and move towards or away from each other, so as to drive the two adjusting plates 8 to approach or move away from each other, and drive the two moving die tables 3 to approach or move away from each other to adjust the distance between them.

[0049] In addition, an adjusting motor capable of driving the adjusting gear 10 to rotate is horizontally and rotatably arranged in the assembly groove, and the adjusting gear 10 is coaxially fixed on the output shaft of the adjusting motor for driving the adjusting gear 10 to rotate.

[0050] In a preferred embodiment of the present invention, the device further includes a first electric telescopic rod 11 for driving the two positioning plates 7 to move horizontally; wherein,

[0051] A first electric telescopic rod 11 is horizontally and throughly fixed inside each linkage member 6, and the telescopic end of the first electric telescopic rod 11 is fixed on the positioning plate 7.

[0052] In the above solution, by synchronously driving the two first electric telescopic rods 11, the two positioning plates 7 are driven to approach the moving die table 3 until they abut against the workpiece for positioning the workpiece.

[0053] The first electric telescopic rod 11 can be a servo electric cylinder. The servo electric cylinder is a modular product integrating a servo motor and a lead screw, with a speed of 0.1 - 2 m / s. Because of the closed-loop servo control, the control accuracy is relatively high. It has the characteristics of low cost and flexible configuration.

[0054] In a preferred embodiment of the present invention, the device further includes a lifting mechanism for driving the lifting seat 4 to perform horizontal lifting in the vertical direction, and the lifting mechanism includes: a second electric telescopic rod 12 and a vertical seat 13; wherein,

[0055] The upper end of the base 1 beside the lifting seat 4 is vertically and fixedly provided with an inverted L-shaped vertical seat 13, and the top of the vertical seat 13 is vertically and fixedly provided with a second electric telescopic rod 12 through it, and the telescopic end of the second electric telescopic rod 12 is fixed on the lifting seat 4.

[0056] In the above solution, during use, the second electric telescopic rod 12 is used to drive the lifting seat 4 to drive the two pressing die heads 5 to lift in the vertical direction.

[0057] The second electric telescopic rod 12 is a cylinder or a hydraulic cylinder.

[0058] In a preferred embodiment of the present invention, the bottom part of the lifting seat 4 is recessed inward to form a guiding groove, and a horizontal guiding rod 14 is horizontally and fixedly arranged in the guiding groove. The tops of the two pressing die heads 5 are respectively horizontally provided with horizontal guiding holes for the horizontal guiding rod 14 to pass through, and the two pressing die heads 5 are horizontally and movably assembled on the horizontal guiding rod 14 through the horizontal guiding holes.

[0059] In the above solution, during use, under the guiding action of the horizontal guiding rod 14, when adjusting the two moving die tables 3, the two pressing die heads 5 can be driven to move horizontally so as to adjust the distance between the two pressing die heads 5 together.

[0060] In a preferred embodiment of the present invention, the tops of the lifting seat 4 beside the second electric telescopic rod 12 are respectively vertically and fixedly provided with two longitudinal guiding rods 15 that can pass through the top of the vertical seat 13, and the vertical seat 13 is respectively vertically provided with longitudinal guiding holes for the two longitudinal guiding rods 15 to pass through.

[0061] In the above solution, through the cooperation of the longitudinal guiding holes on the vertical seat 13 and the longitudinal guiding rods 15, it can be ensured that the second electric telescopic rod 12 drives the lifting seat 4 to move linearly in the vertical direction.

[0062] In summary, the sheet metal part edge wrapping device provided by the present invention overcomes the problem in the prior art that only one side of the sheet metal part can be edge wrapped during use, which reduces the working efficiency.

[0063] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0064] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0065] Furthermore, any combination can be made between various different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A sheet metal part hemming device, comprising: Base (1) and edge wrapping mechanism, characterized in that; The edge wrapping mechanism includes: a moving die table (3), a lifting seat (4), a downward pressing die head (5) and a positioning plate (7); among them, Two moving die tables (3) with adjustable spacing are horizontally and movably arranged at the upper end of the base (1), a lifting seat (4) is horizontally and liftably arranged above the base (1), and two downward pressing die heads (5) with adjustable spacing and used in cooperation with the two moving die tables (3) are horizontally and movably arranged at the lower end of the lifting seat (4). Each moving die table (3) is connected to its corresponding downward pressing die head (5) through a linkage member (6). One end of each [type linkage member (6) is fixed on the moving die table (3), and the other end thereof is slidably connected to the corresponding downward pressing die head (5) in the longitudinal direction. And a positioning plate (7) capable of abutting against its corresponding moving die table (3) is vertically and movably arranged inside each linkage member (6) to position the workpiece laid on the two moving die tables (3).

2. The hemming device for sheet metal parts according to claim 1, wherein, A support table (2) flush with the tops of the two moving die tables (3) is vertically and fixedly arranged at the upper end of the base (1) between the two moving die tables (3), and the two moving die tables (3) are symmetrically arranged relative to the support table (2).

3. The hemming device for sheet metal parts according to claim 1, wherein, Part of the side wall of the downward pressing die head (5) facing away from the moving die table (3) is recessed inward to form a longitudinal chute (16) adapted to the linkage member (6), and the upper end part of the linkage member (6) extends into the longitudinal chute (16) and is slidably connected thereto.

4. The hemming device for sheet metal parts according to claim 1, characterized in that The device further includes an adjusting mechanism for adjusting the spacing between the two moving die tables (3), and the adjusting mechanism includes: an adjusting plate (8), an adjusting toothed plate (9) and an adjusting gear (10); among them, Part of the upper end of the base (1) is recessed inward to form an assembly groove, and two adjusting plates (8) capable of extending into the assembly groove are respectively vertically and fixedly arranged at the bottoms of the two moving die tables (3). And an adjusting gear (10) is horizontally and rotatably arranged in the assembly groove between the two adjusting plates (8). Adjusting toothed plates (9) meshed with it are respectively horizontally and fixedly arranged on the two adjusting plates (8) at the upper and lower ends of the adjusting gear (10). First avoidance holes for the adjusting toothed plates (9) to pass through are respectively horizontally penetrated on the two adjusting plates (8), and second avoidance holes communicating with the assembly groove and for the two adjusting toothed plates (9) to pass through are also respectively horizontally penetrated at both ends of the base (1).

5. The hemming device for sheet metal parts according to claim 1, characterized in that The device further includes a first electric telescopic rod (11) for driving the two positioning plates (7) to move horizontally; among them, A first electric telescopic rod (11) is horizontally penetrated and fixedly arranged inside each linkage member (6), and the telescopic end of the first electric telescopic rod (11) is fixed on the positioning plate (7).

6. The hemming device for sheet metal parts according to claim 1, characterized in that The device further includes a lifting mechanism for driving the lifting seat (4) to perform horizontal lifting in the vertical direction, and the lifting mechanism includes: a second electric telescopic rod (12) and a vertical seat (13); wherein, A vertically fixed inverted L-shaped vertical seat (13) is provided at the upper end of the base (1) beside the lifting seat (4), and a second electric telescopic rod (12) is vertically and fixedly arranged through the top of the vertical seat (13), and the telescopic end of the second electric telescopic rod (12) is fixed on the lifting seat (4).

7. The hemming device for sheet metal parts according to claim 1, characterized in that A guiding groove is formed by inward depression of a part of the bottom of the lifting seat (4), and a transverse guiding rod (14) is horizontally and fixedly arranged in the guiding groove. Transverse guiding holes for the transverse guiding rod (14) to pass through are respectively horizontally formed through the tops of the two pressing die heads (5), and the two pressing die heads (5) are horizontally and movably assembled on the transverse guiding rod (14) through the transverse guiding holes.

8. The hemming device for sheet metal parts according to claim 6, characterized in that, Two longitudinal guiding rods (15) capable of passing through the top of the vertical seat (13) are respectively vertically fixed at the tops of the lifting seat (4) beside the second electric telescopic rod (12), and longitudinal guiding holes for the two longitudinal guiding rods (15) to pass through are respectively vertically formed through the vertical seat (13).

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