Multi-axis automatic positioning mechanism of electro-hydraulic bending machine

Abstract

This utility model discloses a multi-axis automatic positioning mechanism for an electro-hydraulic bending machine, belonging to the technical field of bending machines. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine includes a base, a limiting mechanism on the base for positioning the sheet metal, a fixed seat fixed to the top of the base, two bearing seats mounted on the fixed seat, a drive shaft rotatably connected between the two bearing seats, two connecting seats fixed to the outside of the drive shaft, a flipping plate fixed to the connecting seats, a rubber pad connected to the top of the flipping plate, a drive mechanism on the fixed seat for driving the drive shaft to rotate, and a buffer assembly on the base. This utility model solves the problem that existing automatic positioning mechanisms for bending machines cannot dynamically support the sheet metal. By setting a flipping support structure, this utility model provides real-time support to the bottom of the sheet metal during bending, effectively preventing sagging, displacement, or deformation of the sheet metal due to its own weight or uneven force.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically to a multi-axis automatic positioning mechanism for an electro-hydraulic bending machine. Background Technology

[0002] The multi-axis automatic positioning mechanism of a bending machine is an intelligent positioning device installed at the rear end of the sheet metal. It is usually driven by a servo motor to move multiple movable stops or positioning blocks. Through the coordinated control of the CNC system, each axis moves precisely to achieve rapid positioning of the sheet metal. It has functions such as high-precision repeatable positioning, multi-program storage, and automatic compensation. It can adapt to the processing needs of sheet metal of different sizes and shapes, greatly improve bending efficiency, and is especially suitable for complex bending processes in mass production.

[0003] Existing multi-axis automatic positioning mechanisms for bending machines are mainly used for the initial positioning of sheet metal. However, during the bending process, due to the lack of a support structure that can move synchronously with the deformation of the sheet metal, the sheet metal is prone to sagging, shifting, or deforming due to its own weight or uneven force, which affects the bending accuracy. This problem is more pronounced when processing long or thin sheet materials, which may lead to inconsistent bending angles, surface scratches, or positioning failure, thereby reducing processing quality and efficiency and limiting the realization of complex bending processes.

[0004] In summary, to improve the processing accuracy and stability of bending machines, it is necessary to address the problem that the existing automatic positioning mechanism of bending machines cannot dynamically support the sheet metal. This mechanism should be able to follow the deformation of the sheet metal in real time during the bending process and provide synchronous lifting force, thereby preventing the sheet metal from sagging or shifting and ensuring consistent bending angles and surface quality. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-axis automatic positioning mechanism for an electro-hydraulic bending machine. By setting a lift structure that can be flipped, the bottom of the sheet metal can be supported in real time during the bending process, preventing the sheet metal from sagging or shifting, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-axis automatic positioning mechanism for an electro-hydraulic bending machine, comprising a base, a limiting mechanism on the base for positioning the sheet metal, a fixed seat fixed on the top of the base, two bearing seats mounted on the fixed seat, a drive shaft rotatably connected between the two bearing seats, two connecting seats fixed on the outside of the drive shaft, a flipping plate fixed on the connecting seats, a rubber pad connected to the top of the flipping plate, a drive mechanism on the fixed seat for driving the drive shaft to rotate, and a buffer assembly on the base for supporting the flipping plate.

[0007] Preferably, the limiting mechanism includes an X-axis moving component and a Y-axis moving component, wherein the X-axis moving component is used to drive the Y-axis moving component to move laterally, and the Y-axis moving component positions the plate.

[0008] Preferably, the X-axis moving assembly includes a lead screw rotatably connected inside the base, a drive motor fixed on the base, a slide connected to the outside of the lead screw by a through thread, and two limiting rods fixed inside the base. The output end of the drive motor is fixedly connected to the lead screw, and the drive motor is used to drive the lead screw to rotate. The slide is slidably connected to the limiting rods.

[0009] Preferably, the Y-axis moving assembly includes a fixed plate fixed to both ends of the slide, a base plate fixed to the top of the fixed plate, an electric guide rail mounted on the base plate, an electric slider slidably connected to the outside of the electric guide rail, two sets of supports fixed to the base plate, a guide rod fixed between each set of supports, a positioning seat slidably connected to the outside of the guide rod, and a stop finger fixed to the electric slider. The positioning seat is fixedly connected to the electric slider through a connector.

[0010] Preferably, the drive mechanism includes a rotating component and a pushing component, wherein the pushing component is used to drive the rotating component to move, and the rotating component is used to drive the transmission shaft to rotate.

[0011] Preferably, the rotating assembly includes a slide rail fixed on a fixed base, a rack slidably connected to the slide rail, and a gear fixed to the end of the drive shaft, wherein the gear meshes with the rack.

[0012] Preferably, the pushing assembly includes a cylinder mounted on a fixed base and a mounting base fixed to the outside of the cylinder. The cylinder is fixedly connected to the fixed base via the mounting base, and the output end of the cylinder is fixedly connected to the rack. The cylinder is used to push the rack to slide along the slide rail.

[0013] Preferably, the buffer assembly includes a sleeve fixed to a fixed base, a spring installed inside the sleeve, a slider fixed to the top of the spring, a connecting rod fixed to the top of the slider, and a washer fixed to the top of the connecting rod. The slider slides in contact with the inner wall of the sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes a flip-up support structure to provide real-time support to the bottom of the sheet material during bending, effectively preventing sagging, shifting, or deformation caused by the sheet material's own weight or uneven stress. This significantly improves bending accuracy and consistency. The structure dynamically follows the bending deformation of the sheet material, providing stable auxiliary support. It is particularly suitable for processing long or thin materials, reducing bending angle deviations and surface scratches caused by material sagging. Simultaneously, the synchronous support function reduces stress concentration during bending, improves forming quality, and reduces the frequency of manual adjustments, further enhancing production efficiency and automation levels, providing a reliable guarantee for the realization of complex bending processes. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the drive mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the base of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the finger guard of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the buffer component of this utility model.

[0021] In the diagram: 1. Base; 201. Lead screw; 202. Drive motor; 203. Slide; 204. Limiting rod; 205. Fixing plate; 206. Base plate; 207. Electric guide rail; 208. Electric slider; 209. Support; 210. Guide rod; 211. Positioning seat; 212. Stop finger; 3. Fixing seat; 4. Bearing seat; 5. Drive shaft; 6. Connecting seat; 7. Flip plate; 8. Rubber pad; 91. Slide rail; 92. Rack; 93. Gear; 94. Cylinder; 95. Mounting seat; 1001. Sleeve; 1002. Spring; 1003. Sliding plate; 1004. Connecting rod; 1005. Gasket. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments.

[0023] Refer to the instruction manual appendix Figures 1 to 5An electro-hydraulic bending machine multi-axis automatic positioning mechanism includes a base 1, a limit mechanism on the base 1 for positioning the sheet metal, a fixed seat 3 fixed on the top of the base 1, two bearing seats 4 mounted on the fixed seat 3, a drive shaft 5 rotatably connected between the two bearing seats 4, two connecting seats 6 fixed on the outside of the drive shaft 5, a flip plate 7 fixed on the connecting seats 6, a rubber pad 8 connected to the top of the flip plate 7, a drive mechanism on the fixed seat 3 for driving the drive shaft 5 to rotate, and a buffer assembly on the base 1 for supporting the flip plate 7.

[0024] It should be noted that the drive mechanism drives the transmission shaft 5 to rotate within the bearing seat 4. The transmission shaft 5 drives the connecting seat 6 fixed thereon to rotate synchronously, thereby driving the flipping plate 7 to flip around the axis of the transmission shaft 5. Before bending, the rubber pad 8 on the top of the flipping plate 7 can provide flexible support to the bottom of the plate, providing dynamic lifting force during the bending deformation process of the plate, effectively preventing the plate from sagging, slipping or twisting due to its own weight or bending force, ensuring bending accuracy and forming quality. The buffer component provides damping support when the flipping plate 7 moves downward to reset, absorbing impact energy and ensuring the stability of the device operation and the reliability of positioning.

[0025] Refer to the instruction manual appendix Figure 3 and Figure 4 The limiting mechanism includes an X-axis moving component and a Y-axis moving component. The X-axis moving component is used to drive the Y-axis moving component to move laterally, and the Y-axis moving component positions the plate.

[0026] It should be noted that the X-axis moving component drives the Y-axis moving component to move laterally along the base 1, and the Y-axis moving component performs longitudinal positioning of the plate. The two work together to achieve precise positioning of the plate in the processing plane.

[0027] Refer to the instruction manual appendix Figure 3 The X-axis moving assembly includes a lead screw 201 rotatably connected inside the base 1, a drive motor 202 fixed on the base 1, a slide block 203 threadedly connected to the outside of the lead screw 201, and two limiting rods 204 fixed inside the base 1. The output end of the drive motor 202 is fixedly connected to the lead screw 201, and the drive motor 202 is used to drive the lead screw 201 to rotate. The slide block 203 is slidably connected to the limiting rods 204.

[0028] It should be noted that the drive motor 202 drives the slide block 203 to move laterally along the limit rod 204 through the rotating lead screw 201, thereby realizing the overall position adjustment of the Y-axis moving assembly and ensuring that the positioning mechanism can adapt to plates of different lengths.

[0029] Refer to the instruction manual appendix Figure 4The Y-axis moving assembly includes a fixed plate 205 fixed at both ends of the slide block 203, a base plate 206 fixed at the top of the fixed plate 205, an electric guide rail 207 mounted on the base plate 206, an electric slider 208 slidably connected to the outside of the electric guide rail 207, two sets of supports 209 fixed on the base plate 206, a guide rod 210 fixed between each set of supports 209, a positioning seat 211 slidably connected to the outside of the guide rod 210, and a stop finger 212 fixed on the electric slider 208. The positioning seat 211 is fixedly connected to the electric slider 208 through a connector.

[0030] It should be noted that the electric guide rail 207 drives the electric slider 208 to move the stop finger 212 longitudinally along the guide rod 210, so as to achieve precise abutment positioning of the rear end of the plate and meet the processing needs of plates of different widths.

[0031] Refer to the instruction manual appendix Figure 2 The drive mechanism includes a rotating component and a pushing component. The pushing component is used to drive the rotating component to move, and the rotating component is used to drive the transmission shaft 5 to rotate.

[0032] It should be noted that the pushing component provides linear power to the rotating component, which in turn converts the linear motion into the rotational motion of the drive shaft 5, thereby controlling the opening and closing action of the flip plate 7.

[0033] Refer to the instruction manual appendix Figure 2 The rotating assembly includes a slide rail 91 fixed on the fixed base 3, a rack 92 slidably connected to the slide rail 91, and a gear 93 fixed to the end of the transmission shaft 5. The gear 93 meshes with the rack 92.

[0034] It should be noted that when the rack 92 moves linearly along the slide rail 91, it drives the transmission shaft 5 to rotate through the meshing of the gear 93, thereby achieving precision and reliability in power transmission.

[0035] Refer to the instruction manual appendix Figure 2 The pushing assembly includes a cylinder 94 mounted on a fixed base 3 and a mounting base 95 fixed to the outside of the cylinder 94. The cylinder 94 is fixedly connected to the fixed base 3 via the mounting base 95. The output end of the cylinder 94 is fixedly connected to a rack 92. The cylinder 94 is used to push the rack 92 to slide along the slide rail 91.

[0036] It should be noted that the cylinder 94 directly drives the rack 92 to reciprocate through its telescopic motion, providing a controllable linear power source for the rotating components.

[0037] Refer to the instruction manual appendix Figure 2 and Figure 5The buffer assembly includes a sleeve 1001 fixed on the fixed base 3, a spring 1002 installed inside the sleeve 1001, a slider 1003 fixed on the top of the spring 1002, a connecting rod 1004 fixed on the top of the slider 1003, and a washer 1005 fixed on the top of the connecting rod 1004. The slider 1003 slides in contact with the inner wall of the sleeve 1001.

[0038] It should be noted that when the flip plate 7 is reset, the gasket 1005 is pressed to push the connecting rod 1004 and the slide plate 1003 to compress the spring 1002. The spring 1002 absorbs the impact energy through deformation, thus protecting the transmission components.

[0039] Working principle: Before bending, the drive motor 202 rotates the lead screw 201, driving the slide block 203 to move laterally along the limit rod 204, adjusting the entire Y-axis moving assembly to the required length position of the sheet metal. Subsequently, the electric guide rail 207 drives the electric slider 208 to move longitudinally along the guide rod 210, causing the stop finger 212 to accurately position the rear end of the sheet metal. After positioning, the bending operation begins. During the bending process, the cylinder 94 extends, pushing the rack 92 to slide on the slide rail 91, driving the meshing gear 93 to rotate. Gear 93 drives the transmission shaft 5 to rotate within the bearing seat 4. The connecting seat 6 on the transmission shaft 5 rotates accordingly, causing the flipping plate 7 to flip upward. The rubber pad 8 at the top gently supports the bottom of the plate. The rubber pad 8 provides dynamic support as the plate bends and deforms, preventing sagging and deviation. When the bending ends and the plate is reset, the cylinder 94 retracts, the flipping plate 7 flips downward, the gasket 1005 contacts the upper end of the sleeve 1001 and pushes the connecting rod 1004 and the slide 1003 downward. The compression spring 1002 absorbs the impact energy, ensuring a smooth reset.

[0040] It should be noted that the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Therefore, this utility model will not explain the control method and circuit connection in detail. In this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A multi-axis automatic positioning mechanism for an electro-hydraulic bending machine, comprising a base (1), characterized in that, A limiting mechanism is provided on the base (1) for positioning the plate. A fixed seat (3) is fixed on the top of the base (1). Two bearing seats (4) are installed on the fixed seat (3). A transmission shaft (5) is rotatably connected between the two bearing seats (4). Two connecting seats (6) are fixed on the outside of the transmission shaft (5). A flip plate (7) is fixed on the connecting seat (6). A rubber pad (8) is connected to the top of the flip plate (7). A driving mechanism is provided on the fixed seat (3) for driving the transmission shaft (5) to rotate. A buffer assembly is provided on the base (1) for supporting the flip plate (7).

2. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine according to claim 1, characterized in that, The limiting mechanism includes an X-axis moving component and a Y-axis moving component. The X-axis moving component is used to drive the Y-axis moving component to move laterally, and the Y-axis moving component positions the plate.

3. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine according to claim 2, characterized in that, The X-axis moving assembly includes a lead screw (201) rotatably connected inside the base (1), a drive motor (202) fixed on the base (1), a slide (203) threaded through and connected to the outside of the lead screw (201), and two limiting rods (204) fixed inside the base (1). The output end of the drive motor (202) is fixedly connected to the lead screw (201), and the drive motor (202) is used to drive the lead screw (201) to rotate. The slide (203) is slidably connected to the limiting rods (204).

4. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine according to claim 3, characterized in that, The Y-axis moving assembly includes a fixed plate (205) fixed at both ends of the slide (203), a base plate (206) fixed at the top of the fixed plate (205), an electric guide rail (207) mounted on the base plate (206), an electric slider (208) slidably connected to the outside of the electric guide rail (207), two sets of supports (209) fixed on the base plate (206), a guide rod (210) fixed between each set of supports (209), a positioning seat (211) slidably connected to the outside of the guide rod (210), and a stop finger (212) fixed on the electric slider (208). The positioning seat (211) is fixedly connected to the electric slider (208) through a connector.

5. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine according to claim 1, characterized in that, The drive mechanism includes a rotating component and a pushing component. The pushing component is used to drive the rotating component to move, and the rotating component is used to drive the transmission shaft (5) to rotate.

6. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine according to claim 5, characterized in that, The rotating assembly includes a slide rail (91) fixed on a fixed base (3), a rack (92) slidably connected to the slide rail (91), and a gear (93) fixed to the end of the transmission shaft (5), the gear (93) meshing with the rack (92).

7. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine according to claim 6, characterized in that, The pushing assembly includes a cylinder (94) mounted on a fixed base (3) and a mounting base (95) fixed to the outside of the cylinder (94). The cylinder (94) is fixedly connected to the fixed base (3) through the mounting base (95). The output end of the cylinder (94) is fixedly connected to the rack (92). The cylinder (94) is used to push the rack (92) to slide along the slide rail (91).

8. The multi-axis automatic positioning mechanism for an electro-hydraulic bending machine according to claim 1, characterized in that, The buffer assembly includes a sleeve (1001) fixed on a fixed base (3), a spring (1002) installed inside the sleeve (1001), a slider (1003) fixed on the top of the spring (1002), a connecting rod (1004) fixed on the top of the slider (1003), and a washer (1005) fixed on the top of the connecting rod (1004). The slider (1003) slides against the inner wall of the sleeve (1001).

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