Excavator door plate bending press

Abstract

The utility model relates to an excavator door plate bending press which comprises a hydraulic clamp, the hydraulic clamp comprises a clamping plate located above a groove plate, the clamping plate is parallel to the groove plate, the rear half part of the clamping plate is in threaded connection with two vertical screw rods, the rotating directions of the two screw rods are opposite, and the lower end of one screw rod is rotationally connected with a connecting rod. The other end of the connecting rod is rotationally connected to a piston rod of the auxiliary hydraulic cylinder; the lower end of the other screw is rotationally connected with a connecting rod, and the other end of the connecting rod is rotationally connected to a cylinder body of the auxiliary hydraulic cylinder. The utility model provides a hydraulic clamp with a horizontal hydraulic cylinder, which can be specially used for fixing a door plate when the door plate is bent, and can be matched with a groove plate to flatly place the door plate and fix the door plate at a correct position, so that the bending yield of the door plate is ensured. Compared with a vertical hydraulic cylinder, the horizontal hydraulic cylinder is smaller in occupied space, the space on the base can be fully utilized, and the bending press is simple in overall structure.

Description

Technical Field

[0001] The utility model relates to the field of excavator door panel processing, in particular to an excavator door panel bending machine. Background Art

[0002] The bending machine is a large machine commonly used in industrial processing. In particular, in the processing of excavator door panels, in order to match the curvature of the excavator cab, the door panels are required to be bent once. However, the lower die of the existing bending machine is generally higher than the base, so that the door panel cannot be stably placed on the lower die. In addition, the existing bending machine also lacks a fixing device for the door panel, which is easy to cause the bending position to deviate due to the deviation of the door panel, increasing the scrap rate. Utility Model Content

[0003] The purpose of this application is to provide an excavator door panel bending machine, aiming to solve the problems existing in the prior art.

[0004] The embodiment of the present application provides an excavator door panel bending machine, comprising a vertically fixed base, an intermediate plate and a top plate, a slot plate is fixed on the top surface of the base, a bending slot is opened on the slot plate, a cutter head that moves up and down is arranged above the bending slot; a hydraulic clamp that fixes the door panel to the slot plate is arranged on the rear side of the slot plate;

[0005] The hydraulic clamp includes a clamping plate located above the slot plate, the clamping plate is parallel to the slot plate, and the rear half of the clamping plate is threadedly connected to a vertical screw rod, there are two screw rods, and the two screw rods rotate in opposite directions. The lower end of one of the screw rods is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the piston rod of the auxiliary hydraulic cylinder; the lower end of the other screw rod is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the cylinder body of the auxiliary hydraulic cylinder.

[0006] The rear end of the slot plate is fixedly connected to a limiting block, the screw rod is rotatably connected in the limiting block, and the lower end of the screw rod extends out of the limiting block and is rotatably connected to the connecting rod.

[0007] A concave equipment slot is provided on the base at the rear side of the slot plate corresponding to the hydraulic clamp, and the limit block, the connecting rod and the auxiliary hydraulic cylinder are all located in the equipment slot.

[0008] A screw hole is provided on the clamping plate corresponding to the screw rod, an extension screw barrel is fixedly connected to the screw hole, the inner thread of the extension screw barrel is connected with the inner thread of the screw hole, and the screw rod is inserted into the extension screw barrel and connected with the extension screw barrel thread.

[0009] The cutter head is driven by a working hydraulic cylinder which is mounted on the top plate.

[0010] The beneficial effect of the utility model is that the utility model provides a hydraulic clamp with a horizontal hydraulic cylinder, which can be specially used to fix the door panel when the door panel is bent, and can be matched with the groove plate to lay the door panel flat and fix it in the correct position, thereby ensuring the bending yield of the door panel. The horizontal hydraulic cylinder occupies less space than the vertical hydraulic cylinder, and can make full use of the space on the base to make the overall structure of the press brake simple. In addition, a cover plate can be set on the equipment slot to conceal the equipment slot, which can further enhance the simplicity of the appearance of the press brake. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model.

[0012] Figure 2 It is a schematic diagram of the back structure of the utility model.

[0013] Figure 3 It is a structural diagram of the hydraulic clamp.

[0014] In the figure:

[0015] 1. Base; 2. Intermediate plate; 3. Top plate; 4. Slot plate; 5. Bending groove; 6. Cutter head; 7. Working hydraulic cylinder; 8. Clamp; 9. Screw; 10. Extension screw barrel; 11. Connecting rod; 12. Auxiliary hydraulic cylinder; 13. Limit block; 14. Equipment slot. 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. 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.

[0017] like Figure 1 An excavator door panel bending machine shown in the figure includes a vertically fixed base 1, a partition plate 2 and a top plate 3, a groove plate 4 is fixed on the top surface of the base 1, a bending groove 5 is opened on the groove plate 4, and a tool head 6 that moves up and down is arranged above the bending groove 5. The tool head 6 is driven by a working hydraulic cylinder 7, and the working hydraulic cylinder 7 is installed on the top plate 3.

[0018] When working, the door panel is placed flat on the groove plate 4, and the bending part is aligned with the bending groove 5. The working hydraulic cylinder 7 is started to drive the cutter head 6 to descend and press a bending mark on the door panel.

[0019] like Figure 2 and Figure 3As shown, a hydraulic clamp is provided on the rear side of the groove plate 4 to fix the door panel on the groove plate 4. Specifically, the hydraulic clamp includes a clamping plate 8 located above the groove plate 4, the clamping plate 8 is parallel to the groove plate 4, and the clamping plate 8 is misaligned with the groove plate 4 so that the lower part of the clamping plate 8 in the front half faces the groove plate 4, and the lower part of the clamping plate 8 in the rear half is suspended. The rear half of the clamping plate 8 is threadedly connected with a vertical screw rod 9, and a screw hole is provided on the clamping plate 8 corresponding to the screw rod 9, and an extension screw barrel 10 is fixedly connected to the screw hole, and the inner thread of the extension screw barrel 10 is connected with the inner thread of the screw hole, and the screw rod 9 is inserted into the extension screw barrel 10 and is threadedly connected to the extension screw barrel 10.

[0020] There are two screw rods 9 installed on the splint 8, and the two screw rods 9 rotate in opposite directions. The lower end of one of the screw rods 9 is rotatably connected to a connecting rod 11, and the other end of the connecting rod 11 is rotatably connected to the piston rod of the auxiliary hydraulic cylinder 12; the lower end of the other screw rod 9 is rotatably connected to a connecting rod 11, and the other end of the connecting rod 11 is rotatably connected to the cylinder body of the auxiliary hydraulic cylinder 12.

[0021] The rear end of the slot plate 4 is fixedly connected to the limit block 13, and the screw rod 9 is rotatably connected in the limit block 13 to limit the position of the screw rod 9. The lower end of the screw rod 9 extends out of the limit block 13 and is rotatably connected to the connecting rod 11. The connecting rod 11 is I-shaped, and circular rotating parts are arranged at both ends to connect the screw rod 9 and the auxiliary hydraulic cylinder 12 respectively.

[0022] A concave equipment slot 14 is provided on the base 1 at the rear side of the slot plate 4 corresponding to the hydraulic clamp, and the limit block 13 , the connecting rod 11 and the auxiliary hydraulic cylinder 12 are all located in the equipment slot 14 .

[0023] When in use, the door panel is placed on the groove plate 4, and the auxiliary hydraulic cylinder 12 is started to extend the piston rod, so that the total length of the auxiliary hydraulic rod becomes longer, and the screw rod 9 connected to one end of the piston rod of the auxiliary hydraulic cylinder 12 rotates clockwise, and the screw rod 9 connected to one end of the cylinder body of the auxiliary hydraulic cylinder 12 rotates counterclockwise. By setting the thread rotation direction in the screw hole of the clamping plate 8, in this scenario, the screw rod 9 rotates to make the clamping plate 8 descend and clamp the door panel for bending. On the contrary, when the bending is completed, the piston rod of the auxiliary hydraulic cylinder 12 retracts, and the screw rod 9 rotates in the opposite direction, so that the clamping effect on the door panel is released, and the next door panel can be replaced.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An excavator door panel bending machine, characterized in that: It includes a vertically fixed base, an intermediate plate and a top plate. A groove plate is fixed on the top surface of the base. A bending groove is provided on the groove plate. A tool head that moves up and down is provided above the bending groove. A hydraulic clamp that fixes the door panel on the groove plate is provided on the rear side of the groove plate. The hydraulic clamp includes a clamping plate located above the slot plate, the clamping plate is parallel to the slot plate, and the rear half of the clamping plate is threadedly connected to a vertical screw rod, there are two screw rods, and the two screw rods rotate in opposite directions. The lower end of one of the screw rods is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the piston rod of the auxiliary hydraulic cylinder; the lower end of the other screw rod is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the cylinder body of the auxiliary hydraulic cylinder.

2. The excavator door panel bending machine according to claim 1, characterized in that: The rear end of the slot plate is fixedly connected to a limiting block, the screw rod is rotatably connected in the limiting block, and the lower end of the screw rod extends out from the limiting block and is rotatably connected to the connecting rod.

3. The excavator door panel bending machine according to claim 2, characterized in that: A concave equipment slot is provided on the base at the rear side of the slot plate corresponding to the hydraulic clamp, and the limit block, the connecting rod and the auxiliary hydraulic cylinder are all located in the equipment slot.

4. The excavator door panel bending machine according to claim 1, characterized in that: The clamping plate is provided with a screw hole corresponding to the screw rod, an extension screw barrel is fixedly connected to the screw hole, the inner thread of the extension screw barrel is connected with the inner thread of the screw hole, and the screw rod is inserted into the extension screw barrel and connected with the extension screw barrel thread.

5. The excavator door panel bending machine according to claim 1, characterized in that: The cutter head is driven by a working hydraulic cylinder which is mounted on the top plate.

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