Aluminum alloy plate bending device

Abstract

The utility model discloses an aluminum alloy plate bending device which comprises a base and a lower die installed at the top end of the base, a V-shaped bending groove is formed in the top end of the lower die, a material returning structure is arranged in the V-shaped bending groove, a hydraulic bending mechanism is installed at the top end of the lower die, a rear hollow box is fixed to the outer wall of one side of the lower die, and a rear hollow box is fixed to the outer wall of the other side of the lower die. And a U-shaped conveying frame is installed in the rear hollow box, and a chain roller conveying assembly used for horizontally transferring the aluminum alloy plates is arranged in the U-shaped conveying frame. The plate centering unit is used for keeping the centering degree of the aluminum alloy plate all the time, it is guaranteed that the aluminum alloy plate is kept at the accurate position all the time in the bending process, and therefore part deviation in the bending process is reduced, the accuracy of the bent part can be guaranteed, and the quality and consistency of products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy plate processing, in particular to an aluminum alloy plate bending device. Background Art

[0002] The aluminum alloy sheet bending device is a key equipment for processing aluminum alloy sheets. It realizes the process of bending the flat aluminum alloy sheet into the required shape on demand through the upper die, the lower die, the pressure system, the support and positioning system, the control system and other components. Its working principle is based on mechanical mechanics and the law of plastic deformation of materials. By applying appropriate force, the aluminum alloy sheet undergoes plastic deformation and finally forms the target bending shape. For example, an aluminum alloy sheet bending device disclosed in the authorization announcement number CN217748785U includes a first belt conveyor, a second belt conveyor and a bending assembly. The second belt conveyor is arranged on one side of the first belt conveyor. The bending assembly includes a plurality of V-groove molds, a first rotating unit, a plurality of V-shaped protrusions, a second rotating unit, a support frame and Multiple cylinders and a support frame are installed above the first belt conveyor and the second belt conveyor, and the multiple cylinders are fixedly connected to the support frame. The aluminum alloy plate is placed on the first belt conveyor and transported to between the V-groove mold and the V-shaped protrusion. The multiple cylinders are started to drive the V-shaped protrusion to move downward to extrude and bend the aluminum alloy plate. This technical solution mainly uses a belt conveyor to feed the aluminum alloy plate during the bending process. However, the belt conveyor lacks components to limit the aluminum alloy plate. This results in the position of the aluminum alloy plate changing after each bending, causing the bending part of the aluminum alloy plate to be offset, misaligned, etc. The offset of the plate during the bending process will affect the quality of the final product of the plate and may even cause bending failure. Utility Model Content

[0003] The utility model aims to provide an aluminum alloy plate bending device, and to add a plate centering unit to the conveying device to prevent the aluminum alloy plate from deflecting, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aluminum alloy plate bending device, comprising a base and a lower mold installed on the top of the base, and the top of the lower mold is provided with a V-shaped bending groove, the interior of the V-shaped bending groove is provided with a material return structure, the top of the lower mold is provided with a hydraulic bending mechanism, a rear hollow box is fixed on the outer wall of one side of the lower mold, and a U-shaped conveying frame is installed inside the rear hollow box, a chain roller conveying assembly for horizontally transferring the aluminum alloy plate is arranged inside the U-shaped conveying frame, plate centering units for assisting the centering of the aluminum alloy plate are installed on both inner walls of the U-shaped conveying frame above the chain roller conveying assembly, and a control panel electrically connected to the hydraulic bending mechanism, the chain roller conveying assembly, and the input end of the plate centering unit is installed on one side of the surface of the base.

[0005] Preferably, the material return structure includes a plurality of support rods slidably mounted inside the lower mold, the top ends of the plurality of support rods all penetrate to the outside of the lower mold and are fixed with support blocks, and the outer peripheral surface of the support rods below the support blocks is wrapped with a return spring.

[0006] Preferably, the hydraulic bending mechanism includes guide columns fixed at the top corners of the lower mold, and four flat plates installed on the tops of the guide columns, a hydraulic cylinder is installed at the center position of the top of the flat plate, a slide is installed at the bottom end of the piston rod of the hydraulic cylinder, and an upper bending mold is fixed to the bottom end of the slide.

[0007] Preferably, the chain roller conveying assembly includes a plurality of steel rollers rotatably installed at equal intervals inside a U-shaped conveying frame, and a sprocket transmission structure arranged on the outer wall of one side of the U-shaped conveying frame for connecting the plurality of steel rollers, and a stepper motor for driving one of the steel rollers to rotate is installed on the outer wall of the other side of the U-shaped conveying frame.

[0008] Preferably, three support rods are provided, and the three support rods are symmetrically structured with respect to the vertical center reference plane of the lower mold.

[0009] Preferably, the plate centering unit includes an electric push rod installed on the outer walls of both sides of the U-shaped conveying frame, and a right-angle frame installed on the top end of the piston rod of the electric push rod, and the right-angle frame is made of stainless steel.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the aluminum alloy plate bending device is provided with structures that cooperate with each other, such as a chain roller conveying assembly and a plate centering unit, and uses the plate centering unit to self-center and clamp the aluminum alloy plate. When the chain roller conveying assembly conveys the aluminum alloy plate toward the lower mold, the plate centering unit always maintains the centering degree of the aluminum alloy plate, ensuring that the aluminum alloy plate always maintains an accurate position during the bending process, thereby reducing the position deviation during the bending process, helping to ensure the accuracy of the bending position, and improving the quality and consistency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 It is a side view structural schematic diagram of the utility model;

[0013] Figure 3 This is a side structural schematic diagram of a U-shaped conveying frame of the utility model;

[0014] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0015] In the figure: 1. base; 2. lower mold; 201. V-shaped bending groove; 202. support rod; 203. support block; 204. return spring; 3. rear hollow box; 4. U-shaped conveying frame; 5. guide column; 6. flat plate; 7. hydraulic cylinder; 8. slide; 9. upper bending mold; 10. control panel; 11. chain roller conveying assembly; 1101. stepping motor; 1102. steel roller; 1103. sprocket transmission structure; 12. plate centering unit; 1201. electric push rod; 1202. right angle frame. DETAILED DESCRIPTION

[0016] 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. 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.

[0017] See also Figure 1-4 The utility model provides an embodiment: an aluminum alloy plate bending device, comprising a base 1 and a lower mold 2 installed at the top of the base 1, and a V-shaped bending groove 201 is arranged at the top of the lower mold 2, and a material withdrawal structure is arranged inside the V-shaped bending groove 201, and a hydraulic bending mechanism is installed at the top of the lower mold 2, and the hydraulic bending mechanism includes a guide column 5 fixed at the top corner position of the lower mold 2, and a flat plate 6 installed at the top of four guide columns 5, a hydraulic cylinder 7 is installed at the center position of the top of the flat plate 6, a slide 8 is installed at the bottom end of the piston rod of the hydraulic cylinder 7, and an upper bending mold 9 is fixed at the bottom end of the slide 8;

[0018] The hydraulic cylinder 7 controls the slide 8, the upper bending die 9 and other components to move downward until the upper bending die 9 enters the V-shaped bending groove 201, and the upper bending die 9 and the V-shaped bending groove 201 are used to bend the aluminum alloy sheet;

[0019] A rear hollow box 3 is fixed on one side outer wall of the lower mold 2, and a U-shaped conveying frame 4 is installed inside the rear hollow box 3. A chain roller conveying assembly 11 for horizontally transferring the aluminum alloy plate is arranged inside the U-shaped conveying frame 4. The aluminum alloy plate is placed on the chain roller conveying assembly 11. Plate centering units 12 for assisting the aluminum alloy plate in centering are installed on both inner walls of the U-shaped conveying frame 4 above the chain roller conveying assembly 11. The plate centering units 12 are used to self-center and clamp the aluminum alloy plate.

[0020] A control panel 10 electrically connected to the input end of the hydraulic bending mechanism, the chain roller conveying assembly 11, and the plate centering unit 12 is installed on one side of the surface of the base 1;

[0021] The material-removing structure includes a plurality of support rods 202 slidably mounted inside the lower mold 2, the top ends of the plurality of support rods 202 all penetrate the outside of the lower mold 2 and are fixed with a support block 203, a return spring 204 is wound around the outer circumference of the support rod 202 below the support block 203, three support rods 202 are provided, and the three support rods 202 are symmetrically structured with respect to the vertical center reference plane of the lower mold 2;

[0022] When the upper bending die 9 and the V-shaped bending groove 201 are separated, the return spring 204 gradually returns to the initial state from the compressed state, that is, the return spring 204 forces the support rod 202 and the support block 203 to move upward until the support block 203 pushes the bent aluminum alloy sheet out of the V-shaped bending groove 201, and at this time, the chain roller conveyor assembly 11 continues to convey the aluminum alloy sheet and bend it;

[0023] The chain roller conveying assembly 11 includes a plurality of steel rollers 1102 rotatably installed at equal intervals inside the U-shaped conveying frame 4, and a sprocket transmission structure 1103 arranged on the outer wall of one side of the U-shaped conveying frame 4 for connecting the plurality of steel rollers 1102. A stepper motor 1101 for driving one of the steel rollers 1102 to rotate is installed on the outer wall of the other side of the U-shaped conveying frame 4. When conveying the aluminum alloy sheet, the stepper motor 1101 and the sprocket transmission structure 1103 drive the plurality of steel rollers 1102 to rotate together, thereby synchronously conveying the aluminum alloy sheet to achieve the purpose of feeding and bending.

[0024] The plate centering unit 12 includes an electric push rod 1201 installed on the outer walls of both sides of the U-shaped conveying frame 4, and a right angle frame 1202 installed on the top of the piston rod of the electric push rod 1201, and the right angle frame 1202 is made of stainless steel;

[0025] During the conveying and bending process of the aluminum alloy sheet, the staff controls the electric push rod 1201 through the control panel 10, and the electric push rod 1201 pushes the right-angle frame 1202 to move toward the vertical center line of the U-shaped conveying frame 4, that is, the two right-angle frames 1202 are close to each other, so that the right-angle frames 1202 are used to limit the side edges of the aluminum alloy sheet to ensure that the aluminum alloy sheet is centered.

[0026] When the embodiment of the present application is used, the staff first takes out the aluminum alloy plate to be bent, and places the aluminum alloy plate on the chain roller conveyor assembly 11. At this time, the staff turns on the plate centering unit 12 through the control panel 10 to work, and uses the plate centering unit 12 to self-center and clamp the aluminum alloy plate. When the chain roller conveyor assembly 11 conveys the aluminum alloy plate toward the lower mold 2, the plate centering unit 12 always maintains the centering degree of the aluminum alloy plate, effectively preventing the aluminum alloy plate from deviating during the conveying process. The hydraulic cylinder 7 controls the slide 8 and the upper bending mold 9. The components move downward until the upper bending die 9 enters the V-shaped bending groove 201, and the upper bending die 9 and the V-shaped bending groove 201 are used to bend the aluminum alloy sheet. When the upper bending die 9 and the lower die 2 are separated, the material withdrawal structure in the V-shaped bending groove 201 allows the bent aluminum alloy sheet to withdraw. In this process, the sheet centering unit 12 plays a role of limiting and centering, ensuring that the aluminum alloy sheet always maintains an accurate position during the bending process, thereby reducing the position deviation during the bending process, helping to ensure the accuracy of the bending position, and improving the quality and consistency of the product.

Claims

1. Aluminum alloy sheet bending device, characterized by: The invention comprises a base (1) and a lower mold (2) mounted on the top of the base (1), wherein the top of the lower mold (2) is provided with a V-shaped bending groove (201), the interior of the V-shaped bending groove (201) is provided with a material return structure, the top of the lower mold (2) is provided with a hydraulic bending mechanism, a rear hollow box (3) is fixed on an outer wall of one side of the lower mold (2), and a U-shaped conveying frame (4) is mounted inside the rear hollow box (3), a chain roller conveying assembly (11) for horizontally transferring aluminum alloy plates is arranged inside the U-shaped conveying frame (4), plate centering units (12) for assisting the centering of aluminum alloy plates are mounted on both inner walls of the U-shaped conveying frame (4) above the chain roller conveying assembly (11), and a control panel (10) electrically connected to the input end of the hydraulic bending mechanism, the chain roller conveying assembly (11) and the plate centering unit (12) is mounted on one side of the surface of the base (1).

2. The aluminum alloy sheet bending device according to claim 1, characterized in that: The material removal structure comprises a plurality of support rods (202) slidably mounted inside the lower mold (2), the top ends of the plurality of support rods (202) all pass through the outside of the lower mold (2) and are fixed with a support block (203), and a return spring (204) is wound around the outer peripheral surface of the support rod (202) below the support block (203).

3. The aluminum alloy sheet bending device according to claim 1, characterized in that: The hydraulic bending mechanism comprises a guide column (5) fixed at the top corner position of the lower mold (2), and four flat plates (6) installed at the top of the guide column (5), a hydraulic cylinder (7) is installed at the center position of the top of the flat plate (6), a slide table (8) is installed at the bottom end of the piston rod of the hydraulic cylinder (7), and an upper bending mold (9) is fixed at the bottom end of the slide table (8).

4. The aluminum alloy sheet bending device according to claim 1, characterized in that: The chain roller conveying assembly (11) comprises a plurality of steel rollers (1102) rotatably mounted at equal intervals inside a U-shaped conveying frame (4), and a sprocket transmission structure (1103) arranged on an outer wall of one side of the U-shaped conveying frame (4) for connecting the plurality of steel rollers (1102); a stepping motor (1101) for driving one of the steel rollers (1102) to rotate is mounted on the outer wall of the other side of the U-shaped conveying frame (4).

5. The aluminum alloy sheet bending device according to claim 2, characterized in that: Three support rods (202) are provided, and the three support rods (202) are symmetrically structured with respect to the vertical center reference plane of the lower mold (2).

6. The aluminum alloy sheet bending device according to claim 1, characterized in that: The plate centering unit (12) comprises an electric push rod (1201) installed on the outer walls of both sides of the U-shaped conveying frame (4), and a right-angle frame (1202) installed on the top end of the piston rod of the electric push rod (1201), and the right-angle frame (1202) is made of stainless steel.

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