A bending processing device

Abstract

The present application relates to a kind of bending processing device.The existing bending processing device needs to use transfer table when processing, affect processing efficiency.The present application includes rack and the flow line being set on the rack, the flow line includes a plurality of sequentially arranged and openable and closable mold assembly, mechanical arm is arranged between adjacent mold assembly, the mold assembly can be switched between mold opening station, mold closing station and pre-tightening station of clamping positioning workpiece, adjacent mechanical arm can be replaced when mold assembly is in pre-tightening station corresponding workpiece is grabbed, to make workpiece be transferred along the mold assembly on flow line sequentially processing.Mold assembly can be switched to the effect of clamping positioning workpiece when pre-tightening station, both can shorten the length of time required for workpiece to complete processing, also can reduce the distance between adjacent mold assembly, to further reduce the volume of device, also can reduce the production cost of device by eliminating transfer table.

Description

Technical Field

[0001] This invention relates to the field of elevator manufacturing, and more specifically to a bending processing device. Background Technology

[0002] The existing bending processing device includes a frame and a production line set on the frame. The production line includes several sequentially arranged and operable mold assemblies, robotic arms matched with each mold assembly, and transfer tables set between adjacent mold assemblies. In use, the workpiece is transferred and processed sequentially along the mold assemblies on the production line. Since the area on the workpiece that can be gripped by the robotic arms is small, adjacent robotic arms can only grip the same area of ​​the workpiece. Therefore, transfer tables are needed to position the workpiece and enable adjacent robotic arms to take turns gripping the workpiece. Specifically, the robotic arm receives the workpiece from the previous transfer table, processes it in the corresponding mold assembly, and then transports it to the subsequent transfer table. This allows the workpiece to be placed on the transfer table in a preset posture and transferred between adjacent mold assemblies. A single robotic arm can transport the workpiece between adjacent transfer tables. This structure has the following drawbacks: transfer tables are installed between adjacent mold components. Workpieces need to be picked up by adjacent robotic arms through the transfer tables. This results in the workpieces needing to be placed on the transfer tables and wait for subsequent robotic arms to pick them up, which prolongs the workpiece processing time, reduces processing efficiency, increases the footprint of the device, wastes space, and increases the equipment production cost due to the installation of transfer tables. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a bending processing device that adds a pre-tightening station to the mold assembly, enabling the mold assembly to perform the function of clamping and positioning the workpiece as the original transfer table, eliminating the need for the transfer table, thereby improving processing efficiency, reducing device size, and lowering device production costs.

[0004] This invention is achieved through the following method: a bending processing device, including a frame and an assembly line mounted on the frame. The assembly line includes several sequentially arranged and operable mold assemblies. Robotic arms are provided between adjacent mold assemblies. The mold assemblies can switch between an opening mold station, a closing mold station, and a pre-tightening station for clamping and positioning workpieces. Adjacent robotic arms can take over gripping the corresponding workpiece when the mold assembly is in the pre-tightening station, allowing the workpiece to be sequentially transferred and processed along the mold assemblies on the assembly line. The ability of the mold assemblies to switch between the opening mold station, closing mold station, and pre-tightening station enables them to clamp and position the workpiece when switched to the pre-tightening station. By replacing the transfer table in the original structure with mold assemblies, the processing time required to complete the workpiece is shortened by eliminating the step of placing the workpiece on the transfer table, thereby improving processing efficiency. Furthermore, eliminating the transfer table reduces the distance between adjacent mold assemblies, thus reducing the device size, and also lowers the production cost of the device. The transfer range of the robotic arm has been changed from the adjacent transfer tables in the original structure to the adjacent mold components in the existing structure. This ensures that the workpiece can be transferred between adjacent robotic arms in a preset posture, and ensures that the preset processing area of ​​the workpiece can be accurately moved into the subsequent mold components, thus guaranteeing processing accuracy.

[0005] Preferably, the mold assembly includes an openable upper mold and a lower mold. When the mold switches to the pre-tightening station, the upper and lower molds approach each other and clamp onto the workpiece's processing area, allowing adjacent robotic arms to take over gripping the workpiece after it is clamped and positioned. The upper and lower molds clamp and position the workpiece by closing towards each other, ensuring that the workpiece maintains its posture after being released from the front robotic arm and is easily grasped by the rear robotic arm, thus ensuring that the workpiece is transferred step by step along the production line and completes the bending process.

[0006] Preferably, the mold assembly is provided with at least one set of processing lines that drive the workpiece to bend. The processing line set includes an extrusion line and a base line respectively located on the bottom surface of the upper mold and the top surface of the lower mold. There are two base lines, with their vertical projections positioned on either side of the extrusion line. When the mold assembly is in the pre-tightening position, the base line and the extrusion line move towards each other and clamp and position the corresponding workpiece. The processing line set can both apply pressure and bend the workpiece, and also perform clamping and positioning operations, ensuring that the workpiece maintains a preset posture. The base line and the extrusion line are respectively located on the upper and lower molds, allowing the workpiece to be stably clamped by the two base lines and one extrusion line, ensuring that the workpiece maintains a stable posture when it is released from the robotic arm.

[0007] Preferably, the base line and the push line are arranged in parallel to each other to ensure that the workpiece has linear creases after processing, thereby ensuring that each section of the workpiece is precisely bent.

[0008] Preferably, the contours of the bottom surface of the upper die and the top surface of the lower die are matched, and the area between the base lines is recessed to form a processing groove for the extrusion line. The bottom surface of the upper die and the top surface of the lower die can be matched and fitted together, thereby improving the bending processing accuracy by reducing the gap with the workpiece.

[0009] Preferably, when the mold assembly switches to the mold closing station, the bottom surface of the upper mold and the top surface of the lower mold close together, causing the workpiece to bend. When the mold assembly switches to the mold opening station, the bottom surface of the upper mold and the top surface of the lower mold separate from the workpiece, allowing the workpiece to be grasped by the corresponding robotic arm and transferred along the production line. Switching the mold assembly to the mold closing station and clamping and bending the workpiece, and then switching the mold assembly to the mold opening station, allows the workpiece to be released from the mold assembly under the drive of the robotic arm, facilitating the mold assembly to receive subsequent workpieces and process the continuously conveyed workpieces one by one, thereby improving processing efficiency.

[0010] Preferably, the frame is equipped with a drive assembly that drives the mold assembly to move. The mold assembly adjusts the distance between the upper and lower molds through the drive assembly, so that the mold assembly can switch between the mold opening station, the mold closing station, and the pre-tightening station. The drive assembly drives the upper and lower molds to open and close, and the mold assembly can freely switch between the mold opening station, the mold closing station, and the pre-tightening station by controlling the distance between the upper and lower molds.

[0011] Preferably, the drive assembly includes a pneumatic cylinder or a hydraulic cylinder for opening and closing the mold assembly. Pneumatic and hydraulic cylinders are easy to install and offer good controllability, facilitating the switching of the mold assembly between different workstations.

[0012] Preferably, the robotic arm includes a gripping part that can be fixed to the workpiece and a transfer part mounted on a frame. The transfer part drives the gripping part to reciprocate between adjacent mold assemblies, so that the workpiece is transferred along a preset path. The robotic arm can transfer workpieces between adjacent mold assemblies and effectively prevents contact between the workpiece and adjacent components during the transfer process, ensuring the safety of workpiece transfer.

[0013] Preferably, the gripping part includes a movable seat fixed to the transfer part and at least two suction cups disposed on the movable seat. The gripping part is fixed to the workpiece via the suction cups. The suction cups can firmly adhere to the workpiece, allowing the workpiece movement to be controlled by the robotic arm. Having at least two suction cups effectively increases the adhesion strength and prevents the workpiece from failing to accurately align its preset processing area with the mold assembly due to relative positional changes or deflection with the movable seat.

[0014] The beneficial effects of this invention are as follows: the mold assembly can switch between the mold opening station, the mold closing station, and the pre-tightening station, so that the mold assembly can play the role of clamping and positioning the workpiece when switching to the pre-tightening station. By using the mold assembly to replace the transfer table in the original structure, the processing time required for the workpiece to be completed can be shortened by eliminating the step of placing the workpiece on the transfer table, thereby improving processing efficiency. Furthermore, the distance between adjacent mold assemblies can be reduced by eliminating the transfer table, thereby reducing the size of the device. Finally, the production cost of the device can be reduced by eliminating the transfer table. Attached Figure Description

[0015] Figure 1 This is a partial structural diagram of the device; In the diagram: 1. Frame, 2. Mold assembly, 3. Robotic arm. Detailed Implementation

[0016] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1 The bending processing device shown comprises a frame 1 and an assembly line mounted on the frame 1. The assembly line includes several sequentially arranged and operable mold assemblies 2. Robotic arms 3 are positioned between adjacent mold assemblies 2. Each mold assembly 2 can switch between an opening station, a closing station, and a pre-tightening station for clamping and positioning workpieces. Adjacent robotic arms 3 can take over gripping the corresponding workpiece when the mold assembly 2 is in the pre-tightening station, allowing the workpiece to be sequentially transferred and processed along the mold assemblies 2 on the assembly line. The ability of the mold assembly 2 to switch between these stations enables it to clamp and position the workpiece when in the pre-tightening station. Replacing the transfer table in the original structure with the mold assembly 2 shortens the processing time by eliminating the step of placing the workpiece on the transfer table, thus improving processing efficiency. It also reduces the distance between adjacent mold assemblies 2, thereby reducing the device's size and production cost.

[0018] In actual operation, when the mold assembly 2 switches to the mold closing station, the bottom surface of the upper mold and the top surface of the lower mold close together, causing the workpiece to bend. When the mold assembly 2 switches to the mold opening station, the bottom surface of the upper mold and the top surface of the lower mold separate from the workpiece, so that the workpiece can be grasped by the corresponding robotic arm 3 and transferred along the production line. Bending processing is achieved by switching the mold assembly 2 to open and close within the preset processing area of ​​the workpiece.

[0019] The production line has multiple mold components 2 arranged sequentially. During processing, the workpiece passes through each mold component 2 along a preset path and is processed in a preset order, so that the workpiece is formed into the desired product after multiple bending processes. The number and arrangement order of the mold components 2 on the production line can be adjusted and set as needed to meet the differentiated processing requirements of different workpieces.

[0020] In actual operation, robotic arms 3 are installed between adjacent mold components 2, and the robotic arms 3 play the role of grasping and transferring workpieces. The mold components 2 are defined as three arranged in a straight line, including a first component, a second component, and a third component. A first robotic arm 3 is installed between the first and second components, and a second robotic arm 3 is installed between the second and third components. During processing, since workpieces are fed into the production line one by one, there are workpieces to be processed on the first, second, and third components of the production line. Workpieces in the first component are grasped by the first robotic arm 3, and workpieces in the second component are grasped by the second robotic arm 3. Specifically: In the first step, when the first, second, and third components complete the extrusion and bending action under the drive of the drive component and switch from the mold closing station to the opening state, the workpiece in the third component is processed and removed. The first robotic arm 3 and the second robotic arm 3 grab the corresponding workpiece and transfer it to the second and third components respectively along the production line. The first component receives the parts to be processed from the outside, and the workpiece transfer action is carried out synchronously. In the second step, after receiving the workpieces transferred along the production line, the first, second and third components switch from the mold opening station to the pre-tightening station under the drive of the drive component. The corresponding workpieces are clamped by the base line and the push line. At this time, the workpieces are both clamped and positioned by the processing line group and grasped and positioned by the corresponding robotic arm 3. In the third step, the first robotic arm 3 detaches from the workpiece located in the second component and, after resetting and moving, adsorbs and grasps the workpiece located in the first component. The second robotic arm 3 detaches from the workpiece located in the third component and, after resetting and moving, adsorbs and grasps the workpiece located in the second component. The first robotic arm 3 and the second robotic arm 3 move synchronously to ensure that the first robotic arm 3 detaches from the workpiece located in the second component and makes room for the second robotic arm 3 to adsorb and grasp. During the time period when the workpiece is detached from the corresponding robotic arm 3, it is positioned by the mold component 2 in the pre-tightening station to ensure that the posture and position of the workpiece remain unchanged.

[0021] By repeating steps one through three, the workpiece can be processed cyclically, effectively improving processing efficiency.

[0022] In actual operation, the mold assembly 2 includes an openable upper mold and a lower mold. When the mold is switched to the pre-tightening station, the upper and lower molds approach each other and clamp the workpiece in the processing area, so that the adjacent robotic arm 3 can take over the gripping after the workpiece is clamped and positioned. The upper and lower molds not only serve to clamp and position the workpiece, but also to drive the workpiece to bend. Specifically, when the mold assembly 2 is in the pre-tightening station, the upper and lower molds close together and clamp the workpiece. At this time, the workpiece cannot move and no bending deformation occurs. When the mold assembly 2 is in the mold closing station, the upper and lower molds close together and clamp the workpiece. At this time, the workpiece cannot move and bending deformation occurs. The switching of the mold assembly 2 between different stations is controlled by controlling the degree of closing between the upper and lower molds.

[0023] In actual operation, the mold assembly 2 is equipped with at least one set of processing lines that drive the workpiece to bend. The processing line set includes an extrusion line and a base line located on the bottom surface of the upper mold and the top surface of the lower mold, respectively. There are two base lines, with their vertical projections positioned on either side of the extrusion line. When the mold assembly 2 is in the pre-tightening position, the base line and the extrusion line move towards each other and clamp and position the corresponding workpiece. Each mold assembly 2 will have a different number of processing line sets due to different bending requirements. These processing line sets can both clamp and position the workpiece and achieve the preset bending deformation, ensuring precise bending of the workpiece and improving processing accuracy. Specifically, the base line positions the workpiece on both sides of the preset processing area, and the extrusion line drives the workpiece to bend in the preset processing area by inserting into the processing groove. During processing, the required bending shape is obtained as the depth of the extrusion line inserted into the processing groove increases.

[0024] In practice, the base line and the push line are set parallel to each other to ensure that parallel creases are formed on the workpiece, thus guaranteeing the workpiece processing accuracy.

[0025] In actual operation, the contours of the bottom surface of the upper die and the top surface of the lower die are matched, and the area between the base lines forms a processing groove for the front of the extrusion line through a recess. The preset processing area of ​​the workpiece is embedded into the processing groove under the push of the extrusion line, so that the preset processing area of ​​the workpiece is bent and shaped by being tightly clamped by the groove wall and the extrusion line, preventing the workpiece from elastically recovering and ensuring processing accuracy.

[0026] In actual operation, the frame 1 is equipped with a drive assembly that drives the mold assembly 2 to move. The mold assembly 2 adjusts the distance between the upper and lower molds through the drive assembly, so that the mold assembly 2 can switch between the mold opening station, the mold closing station, and the pre-tightening station. In order to improve processing efficiency, the workpieces distributed in each mold assembly 2 need to be processed and transferred synchronously. Each robotic arm 3 can achieve transfer through synchronous movement, and each mold assembly 2 can achieve synchronous processing of each workpiece through a common drive assembly, which reduces equipment costs and ensures the synchronicity of the actions of the mold assembly 2.

[0027] In actual operation, the driving component includes a pneumatic cylinder or hydraulic cylinder that drives the mold assembly 2 to open and close. By setting a reasonable driving component, a faster reciprocating opening and closing speed and an opening and closing force sufficient for bending can be obtained. Other driving components, such as motors, can also be used and should be considered specific embodiments of the present invention. In use, the driving component can precisely control the movement of the upper and lower molds in conjunction with the workpiece thickness, thereby achieving precise switching between the mold opening station, the pre-tightening station, and the mold closing station. Furthermore, the switching of the mold assembly 2 between the mold opening station, the pre-tightening station, and the mold closing station can also be controlled by detecting the feedback force received by the driving component, and this should also be considered a specific embodiment of the present invention.

[0028] In actual operation, the robotic arm 3 includes a gripping part that can be fixed to the workpiece and a transfer part mounted on the frame 1. The transfer part drives the gripping part to reciprocate between adjacent mold assemblies 2 so that the workpiece is transferred along a preset path. During the transfer process, the robotic arm 3 needs to meet the requirements of accurately gripping the workpiece from the front mold assembly 2, transferring the workpiece in mid-air, and accurately transferring it to the subsequent mold assembly 2. This results in differences in the transfer paths of each robotic arm 3, so that the workpiece can avoid surrounding parts with a specific posture and path and move accurately into the subsequent mold assembly 2. This means that the transfer part needs to be structured according to the corresponding transfer path, and the transfer part needs to be configured with specific structures that can perform rotation, swinging, and translation movements. All of these should be considered as specific embodiments of the present invention.

[0029] In actual operation, the gripping unit includes a movable seat fixed to the transfer unit and at least two suction cups disposed on the movable seat. The gripping unit is fixed to the workpiece through the suction cups. By setting multiple suction cups, the positioning stability of the workpiece is improved, preventing the workpiece from shifting or deflecting. This, in turn, improves the motion accuracy of the robotic arm 3, ensuring that the workpiece is accurately placed into the rear mold assembly 2, thereby improving the processing accuracy of the workpiece.

Claims

1. A bending processing device, comprising a frame (1) and an assembly line disposed on the frame (1), the assembly line comprising a plurality of sequentially arranged and openable / closeable moving mold assemblies (2), characterized in that, Robotic arms (3) are provided between adjacent mold components (2). The mold components (2) can switch between the mold opening station, the mold closing station, and the pre-tightening station for clamping and positioning workpieces. The adjacent robotic arms (3) can take over to grab the corresponding workpiece when the mold component (2) is in the pre-tightening station, so that the workpiece is transferred and processed sequentially along the mold components (2) on the production line. The mold component (2) includes an openable upper mold and a lower mold. The mold component (2) is provided with at least one set of processing lines that drive the workpiece to bend. The processing lines include a pushing line and a base line placed on the bottom surface of the upper mold and the top surface of the lower mold, respectively. There are two base lines. The vertical projections are placed on both sides of the extrusion line. When the mold opening station is switched to the pre-tightening station, the corresponding workpiece is clamped by the base line and the extrusion line. At this time, the workpiece is both clamped and positioned by the processing line group and grasped and positioned by the corresponding robotic arm (3). When the mold assembly (2) is in the pre-tightening station, the upper mold and the lower mold close together and clamp the workpiece. At this time, the workpiece cannot move and does not bend or deform. When the mold assembly (2) is in the mold closing station, the upper mold and the lower mold close together and clamp the workpiece. At this time, the workpiece cannot move and bends or deforms. The mold assembly (2) is switched between different stations by controlling the degree of closing between the upper mold and the lower mold.

2. The bending processing device according to claim 1, characterized in that, When the mold is switched to the pre-tightening station, the upper mold and the lower mold approach each other and clamp on the workpiece to be processed area so that the adjacent robotic arm (3) can take over to grab the workpiece after it is clamped and positioned.

3. The bending processing device according to claim 2, characterized in that, The base lines and the extrusion lines are arranged parallel to each other; or, the contours of the bottom surface of the upper die and the top surface of the lower die are matched, and the area between the base lines is recessed to form a processing groove for the extrusion lines to be embedded.

4. The bending processing device according to claim 2, characterized in that, When the mold assembly (2) switches to the mold opening station, the bottom surface of the upper mold and the top surface of the lower mold separate from the workpiece in opposite directions, so that the workpiece is grabbed by the corresponding robotic arm (3) and transported along the assembly line.

5. A bending processing apparatus according to any one of claims 1-4, characterized in that, The frame (1) is provided with a drive assembly that drives the mold assembly (2) to move. The mold assembly (2) adjusts the distance between the upper mold and the lower mold through the drive assembly so that the mold assembly (2) can switch between the mold opening station, the mold closing station and the pre-tightening station.

6. A bending processing device according to claim 5, characterized in that, The drive assembly includes a cylinder or hydraulic cylinder that drives the mold assembly (2) to open and close.

7. A bending processing apparatus according to any one of claims 1-4, characterized in that, The robotic arm (3) includes a gripping part that can be fixed to the workpiece and a transfer part mounted on the frame (1). The transfer part drives the gripping part to move back and forth between adjacent mold assemblies (2) so that the workpiece is transferred along a preset path.

8. A bending processing device according to claim 7, characterized in that, The gripping part includes a movable seat fixed to the transfer part and at least two suction cups disposed on the movable seat. The gripping part is fixed to the workpiece through the suction cups.

Images