Power-assisted bending device

Abstract

The utility model relates to a power-assisted bending device, which belongs to the technical field of metal plate bending devices and is characterized in that a guide frame is arranged on a worktable, a bending frame and a bending seat are arranged on the guide frame, and the bending frame can be pressed on the bending seat in a sliding manner to bend a plate on the bending seat; the guide frame is further provided with a driving piece and a power assisting assembly, and the driving piece can drive the bending frame to move on the guide frame through the power assisting assembly. A labor-saving lever mechanism is formed by a pressing rod, a cam and other parts in the power assisting assembly, the driving part indirectly drives the bending frame through the labor-saving lever mechanism formed by the power assisting assembly, the driving part can complete bending operation of the hard metal plate with small driving power, and the operation adaptability of equipment is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a power-assisted bending device and belongs to the technical field of metal plate bending devices. BACKGROUND

[0002] In the field of handicrafts, various metal thin plates are often used to make parts after bending. Conventionally, the bending process is completed by a cylinder direct-acting bending device. However, the bending device has exposed some problems in use: the cylinder direct-acting bending device directly drives the cutter head to press down, thereby completing the bending of the metal plate. Under normal circumstances, it is sufficient to complete the bending of conventional soft plate materials, but when used for bending some hard materials, such as hard stainless steel plate materials, the cylinder power cannot meet the bending requirements, resulting in failure of plate bending, and the operation adaptability of the equipment is poor. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a power-assisted bending device that is commonly used for bending soft and hard metal plates and improves the operation adaptability of the equipment.

[0004] The power-assisted bending device comprises a workbench, a guide frame arranged on the workbench, a bending frame and a bending seat arranged on the guide frame, and the bending frame is slidably and press-fitted onto the bending seat to bend the plate on the bending seat.

[0005] The guide frame further comprises a driving member and a power-assisted assembly, and the driving member can drive the bending frame to move on the guide frame through the power-assisted assembly.

[0006] Further, the guide frame comprises a top plate and a bottom plate, and a guide rail and a protection strip are arranged between the top plate and the bottom plate; a support seat is arranged on the inner side of the top plate; a spring for elastic return of the bending frame is arranged on the top plate.

[0007] The driving member is arranged on the top plate.

[0008] Further, the bending frame comprises a cross beam, and a sliding seat is arranged at the end of the cross beam and is slidably connected to the guide rail; a cutter seat is arranged below the cross beam, and a cutter head is arranged on the cutter seat; one end of the spring is connected to the sliding seat.

[0009] Further, the power-assisted assembly comprises a guide frame connected to the movable part of the driving member and a pressing rod hingedly connected to the support seat; guide rollers and cams are arranged at the two ends of the pressing rod, respectively; a lubricating seat is arranged on the upper surface of the cross beam, and the cam can abut against the lubricating seat; a limiting pin is further arranged on the pressing rod; and the guide rollers can abut against the guide frame.

[0010] Further, the guide frame comprises a base, and a guide tile extends from the side surface of the base; the guide rollers are rollably connected to the guide tile; a limiting plate is arranged at the bottom of the base; and the guide rollers can move along the constraint contour of the guide tile to the space between the guide tile and the limiting plate.

[0011] Further, the bending seat comprises a bending table connected to the workbench, a bending groove is arranged on the bending table, and a transition inclined table is further arranged on the bending table, and the inclined surface of the transition inclined table is connected between the groove opening of the bending groove and the table surface of the bending table.

[0012] The utility model has the beneficial effects compared with the prior art:

[0013] The pressure rod and the cam and other components in the power-assisted assembly constitute a labor-saving lever mechanism, the driving member indirectly drives the bending frame by using the labor-saving lever mechanism constituted by the power-assisted assembly, so that the bending operation of the hard metal plate can be completed by using smaller driving power of the driving member, and the operation adaptability of the equipment is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the overall structure schematic diagram of the power-assisted bending device of the utility model;

[0015] Figure 2 is the forward structure schematic diagram of the power-assisted bending device of the utility model;

[0016] Figure 3 is Figure 1 the local enlarged structure schematic diagram of A in the figure;

[0017] Figure 4 is Figure 1 the local enlarged structure schematic diagram of B in the figure;

[0018] Figure 5 is the down-pressing state structure schematic diagram of the power-assisted bending device of the utility model.

[0019] In the figure:

[0020] 1, workbench;

[0021] 2, bending frame; 201, crossbeam; 202, sliding seat; 203, cutter seat; 204, cutter head;

[0022] 3, guide frame; 301, top plate; 302, protection strip; 303, support seat; 304, guide rail; 305, spring; 306, bottom plate;

[0023] 4, driving member;

[0024] 5, power-assisted assembly; 501, guide frame; 5011, base; 5013, limiting plate; 5012, guide shoe; 502, guide roller; 503, pressure rod; 504, limiting pin; 505, cam; 506, lubricating seat;

[0025] 6, bending seat; 601, bending groove; 602, bending table; 603, transition inclined table;

[0026] 7. Foot switch. Detailed Implementation

[0027] like Figures 1-5 As shown, this embodiment is achieved through the following technical solution: a guide frame 3 is provided on the workbench 1, and a bending frame 2 and a bending seat 6 are provided on the guide frame 3. The bending frame 2 can be slidably pressed onto the bending seat 6 to bend the sheet metal on the bending seat 6.

[0028] The guide frame 3 is also equipped with a drive component 4 and an assist component 5. The drive component 4 can drive the bending frame 2 to move on the guide frame 3 through the assist component 5.

[0029] In this embodiment, the driving component 4 is a cylinder, and correspondingly, the device also includes a foot switch 7 for controlling the cylinder.

[0030] Specifically, the guide frame 3 includes: a top plate 301 and a bottom plate 306, with a guide rail 304 and a protective strip 302 between the top plate 301 and the bottom plate 306; a support seat 303 is provided on the inner side of the top plate 301; and a spring 305 is provided on the top plate 301 for the elastic return of the bending frame 2.

[0031] The drive component 4 is mounted on the top plate 301; the protective strip 302 is placed on one side of the assist component 5. Specifically, the protective strip 302 is used to limit the direction of movement of the guide frame 501. When the guide frame 501 becomes loose on the drive component 4, it may rotate or deviate in position. At this time, the protective strip 302 can effectively prevent such unintended movement.

[0032] Specifically, the bending frame 2 includes a crossbeam 201, with a slide 202 at one end of the crossbeam 201, the slide 202 being slidably connected to a guide rail 304; a cutter holder 203 is located below the crossbeam 201, with a cutter head 204 mounted on the cutter holder 203; one end of a spring 305 is connected to the slide 202, such as... Figure 3 As shown; in this embodiment, the spring 305 is a tension spring.

[0033] Specifically, the assist component 5 includes: a guide frame 501 connected to the movable part of the drive component 4, and a pressure rod 503 hinged to the support base 303; the two ends of the pressure rod 503 are respectively provided with guide rollers 502 and cams 505, and a lubrication seat 506 is provided on the top of the crossbeam 201, with the cam 505 abutting against the lubrication seat 506; the pressure rod 503 is also provided with a limit pin 504; the guide rollers 502 abut against the guide frame 501. Conventionally, the lubrication seat 506 stores grease. Figure 2 and Figure 4 As shown, when not in operation, the limit pin 504 can abut against the side of the support 303 to prevent the pressure rod 503 from retracting excessively into the support 303.

[0034] Specifically, the guide frame 501 comprises: a base 5011, a guide shoe 5012 extending from the side of the base 5011, and a guide roller 502 rollably connected to the guide shoe 5012; a limiting plate 5013 at the bottom of the base 5011; the guide roller 502 can move along the constraint contour of the guide shoe 5012 to between the guide shoe 5012 and the limiting plate 5013.

[0035] Specifically, the bending seat 6 comprises: a bending table 602 connected to the workbench 1, the bending table 602 being provided with a bending groove 601 matched with the cutter head 204, and the bending table 602 being further provided with a transition inclined table 603, the inclined surface of the transition inclined table 603 being connected between the groove opening of the bending groove 601 and the table surface of the bending table 602; when the bending operation is performed, the metal plate can be placed on the groove opening of the bending groove 601 through the guidance of the transition inclined table 603.

[0036] The specific use principle of the utility model is as follows:

[0037] The operator starts the driving member 4 (cylinder) by treading the foot switch 7, the piston rod of the cylinder moves downward, drives the guide frame 501 to move downward, and the like, Figure 5 is shown.

[0038] In the process of moving downward of the guide frame 501, the guide shoe 5012 at the side thereof rolls in contact with the guide roller 502 at one end of the pressing rod 503, and drives the pressing rod 503 to rotate about the hinge joint on the support base 303. At the same time, the cam 505 at the other end of the pressing rod 503 rotates and drives the cross beam 201 downward through the lubricating base 506, so that the pressure is transmitted to the whole bending frame 2. After being pressed downward, one end of the pressing rod 503 and the guide roller 502 are between the guide shoe 5012 and the limiting plate 5013; as shown in Figure 5 .

[0039] Further, the bending frame 2 pressed downward overcomes the tension of the spring 305 and stably slides downward along the guide rail 304 through the sliding base 202 at the end thereof. The cutter head 204 installed at the bottom of the bending frame 2 is pressed to the plate placed on the bending seat 6. The plate is first guided by the inclined surface of the transition inclined table 603 and accurately enters the groove opening of the bending groove 601, and then is accurately bent in the bending groove 601 under the pressure of the cutter head 204.

[0040] After the bending is completed, the cylinder resets and rises, the pressure acting on the bending frame 2 is removed. At the same time, when the cylinder drives the guide frame 501 to retract upward, the limiting plate 5013 drives the guide roller 502 and the pressing rod 503 to lift up, preventing the cam 505 from being stuck to cause the pressing rod 503 to be unable to reset. At this time, the spring 305 in the tensile state all the time pulls the sliding base 202, drives the whole bending frame 2 to slide upward along the guide rail 304, so that the cutter head 204 leaves the workpiece and returns to the initial position, waiting for the next operation.

[0041] Of course, the above only the preferred embodiments of the present application, can not be considered to limit the scope of the embodiments of the present application. The present application is not limited to the above examples, the ordinary skilled in the art within the scope of the present application made by the equivalent changes and improvements, should be attributed to the present application within the scope of the patent.

Claims

1. A power-assisted folding device, characterized by The utility model provides a kind of power-assisted bending device, including workbench (1), workbench (1) is equipped with guide frame (3), guide frame (3) is equipped with bending frame (2) and bending seat (6), bending frame (2) can be slidably pressed together to bending seat (6), to bend the plate on bending seat (6); Guide frame (3) is also equipped with driving element (4) and power-assisted component (5), driving element (4) can drive bending frame (2) to move on guide frame (3) by power-assisted component (5).

2. The power-assisted bending device according to claim 1, wherein, Guide frame (3) includes: top plate (301) and bottom plate (306), guide rail (304) and guard bar (302) are arranged between top plate (301) and bottom plate (306); support seat (303) is arranged on the inner side of top plate (301); spring (305) for elastic return of bending frame (2) is arranged on top plate (301); Driving element (4) is arranged on top plate (301).

3. The power-assisted bending device according to claim 2, wherein, Bending frame (2) includes crossbeam (201), and the end of crossbeam (201) is provided with sliding seat (202), and sliding seat (202) is slidably connected to guide rail (304); knife seat (203) is arranged on the lower surface of crossbeam (201), and knife head (204) is arranged on knife seat (203); one end of spring (305) is connected to sliding seat (202).

4. The power-assisted bending device according to claim 3, wherein, Power-assisted component (5) includes guide frame (501) connected to the movable part of driving element (4), and pressing rod (503) hinged to support seat (303); guide rollers (502) and cam (505) are arranged at the two ends of pressing rod (503) respectively, and lubricating seat (506) is arranged on the upper surface of crossbeam (201), and cam (505) can abut into lubricating seat (506); limiting pin (504) is further arranged on pressing rod (503); guide rollers (502) can abut to guide frame (501).

5. The power-assisted bending device according to claim 4, wherein, Guide frame (501) includes base (5011), and guide shoe (5012) extends from the side surface of base (5011), and guide rollers (502) can rollingly abut to the inner side of guide shoe (5012); limiting plate (5013) is arranged at the bottom of base (5011); guide rollers (502) can move along the inner profile of guide shoe (5012) to the space between guide shoe (5012) and limiting plate (5013).

6. The power-assisted bending device according to claim 4, wherein, Bending seat (6) includes bending table (602) connected to workbench (1), and bending groove (601) matched with knife head (204) is arranged on bending table (602), and transition inclined table (603) is further arranged on bending table (602), and the inclined surface of transition inclined table (603) connects between the notch of bending groove (601) and the table surface of bending table (602).

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