Punching machine for bending metal plate

Abstract

The utility model discloses a punching machine for bending a metal plate, which relates to the technical field of punching machines and comprises a rack, a machine cover is fixedly arranged at one end of the upper surface of the rack, a punching upper die is arranged below the machine cover, and a punching lower die is fixedly arranged in the middle of the upper surface of the rack. The machine frame and the machine cover are arranged, the stamping upper die is arranged below the machine cover and can achieve stamping and bending processing on products, the swing arm and the driving arm are arranged above the stamping upper die, the driving arm is driven through the driving cam, the adjusting arm is arranged at the connecting position of the swing arm and the driving arm, and therefore the swing arm and the driving arm can be adjusted. The adjusting arm can limit the movement of the swing arm and the driving arm, so that the driving arm and the swing arm can drive the stamping upper die to move up and down to achieve the stamping effect, the movement range of the driving arm and the swing arm is adjusted by adjusting the position of the adjusting arm, and the effect of adjusting the stamping stroke of the stamping upper die can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, in particular to a punching machine for sheet metal bending. Background Art

[0002] Bending is a commonly used processing method in the production process of sheet metal parts. Traditional sheet metal parts are bent at a certain angle or shape during the bending process. The die stroke of the existing bending punching machine is fixed. When sheet metal bending is performed on workpieces with different stamping degrees, it can only be performed by replacing the punching machine with different strokes.

[0003] For example, a sheet metal bending punching machine with publication number CN218798333U includes a work frame, and first electric push rods are fixedly installed on both sides of the inner wall of the work frame, and a work box is set at the output end of the first electric push rod. The sheet metal is placed on the surface of the placement plate, and placed on different placement lines according to different stamping angles. When the first switch, the second switch or the third switch is pressed, the first stamping block, the second stamping block or the third stamping block is moved downward, and then the first electric push rod is operated to move the work box downward, and the sheet metal is stamped at an acute angle, a right angle or an obtuse angle, so that the placement plate extrude and form the bottom of the sheet metal. The operation is simple, the difficulty of the operator's operation is reduced, and the time for changing different molds is reduced. When the stamping is completed, the sheet metal is removed, and the placement plate is restored by the elastic force generated by the spring. The structure is simple and the production cost is reduced.

[0004] The bending punching machine in the above technical solution has the problem that the stroke is fixed and cannot be adjusted, and its application scope is relatively small.

[0005] Therefore, it is necessary to invent a punching machine for sheet metal bending to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a punching machine for sheet metal bending to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stamping machine for sheet metal bending, comprising a frame, a hood is fixedly arranged at one end of the upper surface of the frame, a stamping upper die is arranged below the hood, a stamping lower die is fixedly arranged in the middle of the upper surface of the frame, a connecting seat is fixedly arranged in the middle of the top of the stamping upper die, a swing arm is movably arranged in the middle of the connecting seat through a pin shaft, a driving arm is movably arranged at the top of the swing arm through a pin shaft, a driving cam is movably arranged at the top of the driving arm through a pin shaft, support plates are movably arranged on both sides of the driving cam through pin shafts, and the support plates are fixedly arranged at the inner top end of the hood, an adjusting arm is movably arranged at the connection between the driving arm and the swing arm through a pin shaft, a slide rail with an arc structure is fixedly arranged in the middle of the inner side wall of the hood, a slider is arranged inside the slide rail, and the outer side of the slider is movably connected to one end of the adjusting arm through a pin shaft.

[0008] Preferably, an adjustment seat is movably provided in the middle of the outer side wall of the sliding block via a pin, and a threaded groove is penetrated through the middle of the adjustment seat.

[0009] Preferably, an adjusting screw is provided through the threaded groove provided in the middle of the adjusting seat, and a supporting seat is movably provided at the bottom end of the adjusting screw via a bearing.

[0010] Preferably, the support seat is movably arranged inside the hood via a bearing, an adjusting motor is fixedly arranged at the bottom end of the support seat, and an output shaft of the adjusting motor is fixedly connected to the bottom end of the adjusting screw.

[0011] Preferably, two positioning slots are provided on the outer side wall of the hood, positioning blocks are provided inside the positioning slots, and the positioning blocks are fixedly provided on the inner side wall of the stamping upper die.

[0012] Preferably, a driving wheel is fixedly provided at the middle portion of the outer side of the driving cam, and the driving wheel is arranged on the outer side of the hood.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model is provided with a frame and a hood, and a stamping upper die is provided under the hood. The stamping upper die can realize stamping and bending processing of the product. A swing arm and a driving arm are provided above the stamping upper die, and the driving arm is driven by a driving cam. An adjusting arm is provided at the connection between the swing arm and the driving arm, and the adjusting arm can limit the movement of the swing arm and the driving arm, so that the driving arm and the swing arm can drive the stamping upper die to move up and down to achieve the stamping effect. By adjusting the position of the adjusting arm, the movement range of the driving arm and the swing arm is adjusted, and the effect of adjusting the stamping stroke of the stamping upper die can be achieved, so that the device can adapt to stamping and bending processing under various stamping strokes;

[0015] 2. The utility model provides an adjusting arm, one end of which is provided with a slide rail and a slider. The slide rail and the slider cooperate to limit the movement of the adjusting arm. An adjusting seat is provided on the outer side of the slider. The position adjustment of the adjusting seat can be driven by an adjusting screw and an adjusting motor, thereby realizing rapid adjustment of the movement stroke of the stamping upper die, so as to facilitate rapid adjustment of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the swing arm, driving arm and adjusting arm of the utility model.

[0019] Figure 4 It is a side schematic diagram of the swing arm, drive arm and adjustment arm structure of the utility model.

[0020] In the figure: 1. frame; 2. machine cover; 3. stamping upper die; 4. stamping lower die; 5. connecting seat; 6. swing arm; 7. driving arm; 8. driving cam; 9. support plate; 10. adjusting arm; 11. slide rail; 12. slider; 13. adjusting seat; 14. adjusting screw; 15. supporting seat; 16. adjusting motor; 17. positioning slide; 18. positioning block; 19. driving wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4 A sheet metal bending punching machine shown in the figure comprises a frame 1, a hood 2 is fixedly arranged at one end of the upper surface of the frame 1, a punching upper die 3 is arranged below the hood 2, a punching lower die 4 is fixedly arranged in the middle of the upper surface of the frame 1, a connecting seat 5 is fixedly arranged in the middle of the top of the punching upper die 3, a swing arm 6 is movably arranged in the middle of the connecting seat 5 through a pin shaft, a driving arm 7 is movably arranged at the top of the swing arm 6 through a pin shaft, and a driving cam 8 is movably arranged at the top of the driving arm 7 through a pin shaft;

[0023] Specifically, support plates 9 are movably provided on both sides of the driving cam 8 through a pin shaft, and the support plates 9 are fixedly provided at the inner top of the hood 2. An adjusting arm 10 is movably provided at the connection between the driving arm 7 and the swing arm 6 through a pin shaft. A slide rail 11 with an arc structure is fixedly provided in the middle of the inner side wall of the hood 2. A slider 12 is provided inside the slide rail 11, and the outer side of the slider 12 is movably connected to one end of the adjusting arm 10 through a pin shaft. The setting of the arc structure of the slide rail 11 makes the position adjustment of the adjusting arm 10 smoother, so as to ensure the smoothness of the movement of the driving arm 7 and the swing arm 6.

[0024] More specifically, an adjustment seat 13 is movably provided at the middle of the outer wall of the slider 12 through a pin shaft, and a thread groove is penetrated in the middle of the adjustment seat 13, and an adjustment screw 14 is penetrated in the thread groove opened in the middle of the adjustment seat 13, and a support seat 15 is movably provided at the bottom end of the adjustment screw 14 through a bearing, and the support seat 15 is movably provided inside the hood 2 through a bearing, and an adjustment motor 16 is fixedly provided at the bottom end of the support seat 15, and the output shaft of the adjustment motor 16 is fixedly connected to the bottom end of the adjustment screw 14, and the adjustment motor 16 is used to drive the adjustment screw 14 so that the position of one end of the adjustment arm 10 is adjusted;

[0025] In addition, two positioning grooves 17 are provided on the outer wall of the hood 2, and a positioning block 18 is arranged inside the positioning groove 17, and the positioning block 18 is fixedly arranged on the inner wall of the stamping upper die 3. The positioning groove 17 and the positioning block 18 are used to limit the movement trajectory of the stamping upper die 3. A driving wheel 19 is fixedly arranged on the middle part of the outer side of the driving cam 8, and the driving wheel 19 is arranged on the outer side of the hood 2. The driving wheel 19 can be connected to a driving mechanism such as a motor to realize power input.

[0026] Working principle of this utility model:

[0027] When the device is in use, the product to be bent can be placed between the stamping upper die 3 and the stamping lower die 4, and the stamping upper die 3 can press the product into the stamping lower die 4 to realize the stamping bending of the product. In this process, the driving cam 8 realizes transmission through the driving wheel 19 and the external motor and other driving mechanisms. The driving cam 8 drives the top end of the driving arm 7 to rotate, and the bottom end of the driving arm 7 drives the swing arm 6 to move. Since an adjusting arm 10 is provided at the connection between the driving arm 7 and the swing arm 6, and one end of the adjusting arm 10 is fixed inside the slide rail 11 by a slider 12, the adjusting arm 10 can limit the movement of the driving arm 7 and the swing arm 6, so that the connection between the driving arm 7 and the swing arm 6 performs a circular motion. At the same time, when the swing arm 6 drives the stamping upper die 3 to move, the movement of the stamping upper die 3 is restricted by the positioning slide groove 17 and the positioning block 18 and can only realize up and down movement. Therefore, the swing arm 6 can drive the stamping upper die 3 to realize up and down reciprocating motion;

[0028] When it is necessary to adjust the stamping stroke of the stamping upper die 3, the adjusting motor 16 drives the adjusting screw 14 to rotate, and the adjusting screw 14 cooperates with the threaded groove in the middle of the adjusting seat 13, so that the adjusting seat 13 drives the slider 12 to move, and the slider 12 moves in the slide rail 11. At this time, the slider 12 can drive one end of the adjusting arm 10 to move, so that the position of the circular motion at the connection between the driving arm 7 and the swing arm 6 is adjusted, thereby adjusting the motion range of the swing arm 6, and then the effect of adjusting the motion stroke of the stamping upper die 3 can be achieved.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A sheet metal bending press, comprising a frame (1), characterized in that: A hood (2) is fixedly provided at one end of the upper surface of the frame (1), a stamping upper die (3) is provided below the hood (2), a stamping lower die (4) is fixedly provided in the middle of the upper surface of the frame (1), a connecting seat (5) is fixedly provided in the middle of the top end of the stamping upper die (3), a swing arm (6) is movably provided in the middle of the connecting seat (5) via a pin shaft, a driving arm (7) is movably provided at the top end of the swing arm (6) via a pin shaft, and a driving cam is movably provided at the top end of the driving arm (7) via a pin shaft. Wheel (8), support plates (9) are movably provided on both sides of the driving cam (8) through a pin shaft, and the support plates (9) are fixedly provided at the inner top end of the hood (2), an adjusting arm (10) is movably provided at the connection between the driving arm (7) and the swing arm (6) through a pin shaft, a slide rail (11) with an arc structure is fixedly provided in the middle of the inner side wall of the hood (2), a slider (12) is provided inside the slide rail (11), and the outer side of the slider (12) is movably connected to one end of the adjusting arm (10) through a pin shaft.

2. A sheet metal bending punching machine according to claim 1, characterized in that: An adjustment seat (13) is movably provided in the middle of the outer wall of the sliding block (12) via a pin shaft, and a thread groove is provided through the middle of the adjustment seat (13).

3. A sheet metal bending punching machine according to claim 2, characterized in that: An adjusting screw rod (14) is arranged through a thread groove formed in the middle of the adjusting seat (13), and a supporting seat (15) is movably arranged at the bottom end of the adjusting screw rod (14) via a bearing.

4. A sheet metal bending punching machine according to claim 3, characterized in that: The support seat (15) is movably arranged inside the hood (2) via a bearing, an adjusting motor (16) is fixedly arranged at the bottom end of the support seat (15), and an output shaft of the adjusting motor (16) is fixedly connected to the bottom end of the adjusting screw (14).

5. A sheet metal bending punching machine according to claim 4, characterized in that: The outer side wall of the hood (2) is provided with two positioning slots (17), the interior of the positioning slots (17) is provided with positioning blocks (18), and the positioning blocks (18) are fixedly arranged on the inner side wall of the stamping upper die (3).

6. A sheet metal bending punching machine according to claim 5, characterized in that: A driving wheel (19) is fixedly arranged at the middle part of the outer side of the driving cam (8), and the driving wheel (19) is arranged on the outer side of the hood (2).

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