An automatic bending device for sheet metal parts

Abstract

The utility model relates to sheet metal processing technical field especially is a kind of automatic sheet metal bending processing device, including processing station, the lower mould is fixed in processing station top, the processing station is processed and is used for sheet metal processing to be provided with processing mechanism, processing mechanism includes: feeding assembly, including the chassis fixed in the top front end of processing station, the support is fixed in the chassis upper end, the connecting plate is slidably installed in the support, the extension frame is fixed in the left end of chassis, the cylinder is pivotally connected in the extension frame, and the right side output end of cylinder is pivotally connected with connecting plate, the vertical plate is fixed in the top of chassis, the transverse sliding slot is set in the rear end surface of vertical plate, and the longitudinal sliding slot is set in the both ends of transverse sliding slot and is connected to each other;Through the whole material taking, material transporting and discharging process, its compact linkage mechanism structure of pure mechanical type is reliable in action, predetermined cycle can be completed without complex electric control program, reduces the manufacturing cost and control complexity of equipment, while guaranteeing the stability and high efficiency of long time operation.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, specifically to an automated sheet metal bending processing device. Background Technology

[0002] Sheet metal bending is an important process in metal forming and processing, and it has a wide range of applications in modern manufacturing. With the continuous improvement of industrial automation, the traditional bending process that relies on manual operation is gradually transforming towards automation and intelligence. According to CN117123649A, an automatic sheet metal bending machine is disclosed. This technology includes: a bending machine body; a bending machine frame, the bending machine frame being fixedly connected to the outside of the bending machine body; a pressing block, the pressing block being installed on the top and bottom surfaces of the bending machine frame via a hydraulic cylinder; and a first bending pressing block, the first bending pressing block being fixedly connected to the bottom end of the pressing block. It features the capability of "pre-bending the sheet metal part using a pre-pressing block, and then using the first bending block..." The pressure block bends the sheet metal parts, reducing local springback at the bend. The second bending pressure block maintains pressure at the bend, improving the bending effect. The sponge pad absorbs the curing liquid and applies it to the bend, thus curing the bend. The arc-shaped magnetic plate repels the rotating magnetic block, controlling the overflow of the curing liquid. The solenoid valve installed at the blockage plate seals the storage tank, controlling the overflow of the curing liquid each time. In existing technologies, automated bending equipment generally uses multi-axis servo drives and complex electrical control systems to realize the spatial trajectory movement of the loading robot. This design method leads to a significant increase in equipment manufacturing costs. At the same time, due to the complexity of the control system and the large number of servo motors and motion control components, the equipment failure rate is relatively high, which also places higher demands on the professional skills of operators and maintenance personnel, thus restricting its widespread application in small and medium-sized production scenarios to a certain extent. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automated sheet metal bending processing device. The entire material picking, conveying, and unloading process is completed in one go. Its purely mechanical linkage mechanism has a compact structure and reliable operation. It can complete the predetermined cycle without complex electrical control programs, reducing the manufacturing cost and control complexity of the equipment, while ensuring the stability and high efficiency of long-term operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automated sheet metal bending processing device, comprising a processing table, a lower die fixed to the top of the processing table, and a processing mechanism provided on the processing table for sheet metal processing, the processing mechanism comprising: The feeding assembly includes a base frame fixed to the front end of the top of the processing table, a bracket fixed to the upper end of the base frame, a connecting plate slidably mounted on the bracket, an extension frame fixed to the left end of the base frame, a cylinder pivotally connected to the extension frame, and the right output end of the cylinder pivotally connected to the connecting plate, a vertical plate fixed to the top of the base frame, a transverse sliding groove opened on the rear surface of the vertical plate, a longitudinal sliding groove opened at both ends of the transverse sliding groove, a connected oblique sliding groove opened at the lower end of the longitudinal sliding groove, and the upper end of the oblique sliding groove connected to the transverse sliding groove, a rotating plate flipped and installed at the upper end of the oblique sliding groove, a vertical rod fixed to the bottom of the connecting plate, a sliding sleeve slidably mounted longitudinally on the vertical rod, a cam rotatably mounted at the front end of the sliding sleeve and located inside the vertical plate, and a pneumatic gripper fixed to the rear end of the sliding sleeve through the extension rod; A bending assembly, set on a processing table and used for bending sheet metal parts.

[0005] Preferably, the feeding assembly further includes a magnet fixed to the lower end of the rotating plate.

[0006] Preferably, the feeding assembly further includes grooves formed on the upper sides of the left and right ends inside the transverse chute.

[0007] Preferably, the feeding assembly further includes a guide rail fixed to the bottom of the upper end of the bracket, a slider is slidably mounted on the guide rail, and a connecting plate is fixed to the bottom of the inclined slide groove.

[0008] Preferably, a lifting platform is fixed to the rear end of the top of the processing table, a housing is installed on the sliding part of the lifting platform, a slide block is longitudinally slidably installed inside the housing, an installation head is fixed to the lower end of the slide block, an upper mold is installed at the lower end of the installation head, and a hydraulic cylinder is installed at the upper end of the housing for driving the slide block.

[0009] Preferably, the bending assembly further includes a guide wheel rotatably mounted on the outer wall of the slide and engaging with the inner wall of the housing.

[0010] Beneficial effects This utility model provides an automated sheet metal bending processing device. Compared with the prior art, it has the following advantages: 1. By driving the cam with a cylinder in a special chute system, complex automated loading and unloading functions are achieved. The horizontal linear motion of a single cylinder is converted into a composite trajectory that includes horizontal conveying, vertical lifting, and oblique motion, completing the complete work cycle from picking up to unloading. The cooperation between the rotating plate and the magnetic plate ensures the reliable unidirectionality of the motion path, and the groove provides precise positioning for the rotating plate to flip. The entire picking, conveying, and unloading process is completed in one go. Its purely mechanical linkage mechanism is compact and reliable. It can complete the predetermined cycle without complex electrical control programs, reducing the manufacturing cost and control complexity of the equipment, while ensuring the stability and high efficiency of long-term operation.

[0011] 2. The bending assembly achieves flexible height adjustment through the lifting platform. Combined with the hydraulic drive and guide wheel system, it ensures both the stability and reliability of the bending process and the consistency of processing accuracy. The entire system, from material loading and positioning to bending and forming, achieves fully automated continuous operation, greatly reducing the need for manual intervention. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the bending component in this utility model; Figure 3 This is a schematic diagram of the front end of the feeding assembly in this utility model; Figure 4 This is a schematic diagram of the rear end of the feeding component in this utility model; Figure 5 This utility model Figure 4 A schematic diagram of the structure of part A in the middle; Figure 6 This is a schematic diagram of the sliding sleeve in this utility model.

[0013] In the diagram: 1. Processing table; 2. Processing mechanism; 21. Feeding assembly; 211. Base frame; 212. Support; 213. Connecting plate; 214. Extension frame; 215. Cylinder; 216. Vertical plate; 217. Horizontal slide groove; 218. Longitudinal slide groove; 219. Inclined slide groove; 2110. Rotating plate; 2111. Magnet piece; 2112. Groove; 2113. Vertical rod; 2114. Sliding sleeve; 2115. Cam; 2116. Extension rod; 2117. Pneumatic gripper; 2118. Guide rail; 2119. Slider; 22. Bending assembly; 221. Lifting machine; 222. Housing; 223. Slide seat; 224. Mounting head; 225. Upper mold; 226. Hydraulic cylinder; 227. Guide wheel; 3. Lower mold. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 - Figure 6 This utility model provides a technical solution: an automated sheet metal bending processing device, including a processing table 1, a lower die 3 fixed on the top of the processing table 1, and a processing mechanism 2 provided on the processing table 1 for sheet metal processing. The processing mechanism 2 includes: The feeding assembly 21 includes a base frame 211 fixed to the front end of the top of the processing table 1. A bracket 212 is fixed to the upper end of the base frame 211, and a connecting plate 213 is slidably mounted on the bracket 212. An extension frame 214 is fixed to the left end of the base frame 211, and a cylinder 215 is pivotally connected to the extension frame 214. The right output end of the cylinder 215 is pivotally connected to the connecting plate 213. A vertical plate 216 is fixed to the top of the base frame 211. A transverse groove 217 is formed on the rear surface of the vertical plate 216, and longitudinal grooves 217 are formed at both ends of the transverse groove 217. 18. A connected inclined slide 219 is provided at the lower end of the longitudinal slide 218, and the upper end of the inclined slide 219 is connected to the transverse slide 217. A rotating plate 2110 is installed inside the upper end of the inclined slide 219. A vertical rod 2113 is fixed at the bottom of the connecting plate 213. A sliding sleeve 2114 is mounted on the vertical rod 2113 and is slidably installed in the longitudinal direction. A cam 2115 is rotatably installed at the front end of the sliding sleeve 2114 and is located inside the vertical plate 216. A pneumatic gripper 2117 is fixed at the rear end of the sliding sleeve 2114 through the extension rod 2116. The bending assembly 22 is set on the processing table 1 and used for bending sheet metal parts.

[0016] In this embodiment, the output end of the cylinder 215 extends to drive the connecting plate 213, causing the cam 2115 at its front end to move horizontally to the right along the interior of the transverse slide groove 217 on the vertical plate 216. At this time, the cam 2115, through the sliding sleeve 2114 and the extension rod 2116, drives the sheet metal part held by the pneumatic gripper 2117 to move horizontally to the right in sync. When the cam 2115 reaches the connection between the right end of the transverse slide groove 217 and the longitudinal slide groove 218, since the rotating plate 2110 is in a horizontal state at this time, the cam 2115 can pass over the rotating plate 2110 and enter the area of ​​the longitudinal slide groove 218. Subsequently, under its own gravity, the cam 2115 slides vertically downward along the interior of the longitudinal slide groove 218 to the lowest point. This downward movement is ultimately converted into the downward movement of the pneumatic gripper 2117 through the sliding sleeve 2114 and the extension rod 2116. The sheet metal part held by the cylinder is precisely placed on the lower mold 3 on the top of the processing table 1. After the material is unloaded, the output end of the cylinder 215 retracts, driving the connecting plate 213 to drive the cam 2115 to slide upward from the bottom of the longitudinal slide 218. When it slides to the top, it pushes open the rotating plate 2110 and enters the transverse slide 217. Then the cam 2115 slides horizontally to the left along the inside of the transverse slide 217. When it slides to the slide structure on the left, it will repeat the above-mentioned picking and unloading steps on the right to grab the sheet metal part placed in the tray on the left side of the top of the processing table 1. The entire picking, transporting and unloading process is completed in one go. Its purely mechanical linkage mechanism is compact and reliable. It can complete the predetermined cycle without complicated electrical control programs, reducing the manufacturing cost and control complexity of the equipment, while ensuring the stability and high efficiency of long-term operation.

[0017] Specifically, the feeding assembly 21 also includes a magnet 2111 fixed to the lower end of the rotating plate 2110.

[0018] In this embodiment, the magnetic sheet 2111 is quickly attracted to the iron structure of the groove wall of the vertical plate 216 by its magnetic force, so that the rotating plate 2110 is stably kept in a horizontal closed state; preventing the rotating plate 2110 from accidentally flipping over due to vibration or inertia, and ensuring that the cam 2115 can only enter the longitudinal groove 218 from the transverse groove 217 along the predetermined path to complete the material feeding action.

[0019] Specifically, the feeding assembly 21 also includes grooves 2112 formed on the upper sides of the left and right ends inside the transverse chute 217.

[0020] In this embodiment, after the cam 2115 completes feeding and slides upward along the inside of the inclined slide 219, its top end will contact and push upward to open the rotating plate 2110 blocking above. During this process, the rotating plate 2110 rotates around its flipping axis, and its upper end is embedded into the preset groove 2112 under the action of the pushing force. The final posture of the rotating plate 2110 after being pushed open is parallel to the direction of the inclined slide 219, thereby making way for the cam 2115 to pass smoothly and ensuring that the cam 2115 smoothly enters the transverse slide 217 from the inclined slide 219.

[0021] Specifically, the feeding assembly 21 also includes a guide rail 2118 fixed to the bottom of the upper end of the bracket 212. A slider 2119 is slidably mounted on the guide rail 2118, and the connecting plate 213 is fixed to the bottom of the inclined slide groove 219.

[0022] In this embodiment, when the output end of the cylinder 215 extends or retracts, the thrust or pull force acting on the connecting plate 213 will be directly transmitted to the guide rail 2118 through the slider 2119, so that it performs a smooth lateral reciprocating motion along a preset straight trajectory.

[0023] Specifically, a lifting platform 221 is fixed at the top rear end of the processing table 1. A housing 222 is installed on the sliding part of the lifting platform 221. A slide block 223 is longitudinally slidably installed inside the housing 222. An installation head 224 is fixed at the lower end of the slide block 223. An upper mold 225 is installed at the lower end of the installation head 224. A hydraulic cylinder 226 is installed at the upper end inside the housing 222 and is used to drive the slide block 223.

[0024] In this embodiment, the overall height of the entire bending unit is adjusted by the lifting machine 221 to adapt to the initial position requirements of different workpieces or molds. Then, the hydraulic cylinder 226 is activated to drive the slide block 223 to make precise longitudinal movements along the internal guide structure of the housing 222, and then the upper mold 225 is driven downward by the mounting head 224 to perform a stable bending operation.

[0025] Specifically, the bending assembly 22 also includes a guide wheel 227 that is rotatably mounted on the outer wall of the slide 223 and engages with the inner wall of the housing 222.

[0026] In this embodiment, when the hydraulic cylinder 226 drives the slide 223 to move up and down inside the housing 222, the guide wheel 227 installed on the outer wall of the slide 223 moves along with it and maintains rolling contact with the inner wall surface of the housing 222, thereby reducing the frictional resistance and wear of the slide 223 during its movement.

[0027] The working principle and usage process of this utility model are as follows: First, the output end of the cylinder 215 extends, driving the connecting plate 213 to move the cam 2115 at its front end horizontally to the right along the interior of the transverse slide groove 217 on the vertical plate 216. At this time, the cam 2115 drives the sheet metal part held by the pneumatic gripper 2117 to move horizontally to the right synchronously through the sliding sleeve 2114 and the extension rod 2116. When the cam 2115 runs to the connection between the right end of the transverse slide groove 217 and the longitudinal slide groove 218, since the rotating plate 2110 is in a horizontal state (its lower end magnet) Plate 2111 is magnetically attached to the iron structure of the groove wall of vertical plate 216, so that rotating plate 2110 is stably held in the horizontal closed state. Cam 2115 can pass over rotating plate 2110 and enter the longitudinal slide groove 218 area. Then, under its own gravity, cam 2115 slides vertically downward along the interior of longitudinal slide groove 218 to the bottom. This downward movement is finally converted into the downward movement of pneumatic gripper 2117 through sliding sleeve 2114 and extension rod 2116, so as to accurately place the sheet metal part held therein on the lower mold 3 on the top of processing table 1.

[0028] After the material is unloaded, the output end of the cylinder 215 retracts, driving the connecting plate 213 to move the cam 2115 upward from the bottom of the longitudinal slide groove 218. When it reaches the top, it pushes open the rotating plate 2110 (at this time, the upper end of the rotating plate 2110 is embedded in the preset groove 2112 inside the transverse slide groove 217, so that the rotating plate 2110 is parallel to the inclined slide groove 219, making way for the cam 2115 to pass smoothly) and enters the transverse slide groove 217. Then the cam 2115 slides horizontally to the left along the inside of the transverse slide groove 217 (during this horizontal movement, the connecting plate 213 is fixed to the bottom of the slider 2119, and the slider 2119 is slidably mounted on the guide rail 2118 fixed to the bottom of the upper end of the bracket 212, ensuring that the entire motion unit runs smoothly along the preset straight trajectory). When it slides to the slide groove structure on the left, the above-mentioned picking and unloading steps on the right side will be repeated to pick up the sheet metal parts placed in the tray on the left side of the top of the processing table 1.

[0029] After the sheet metal part is accurately placed on the lower die 3, the bending assembly begins to work: First, the overall height of the entire bending unit is adjusted by the lifting machine 221 to adapt to the initial position requirements of different workpieces or dies. Then, the hydraulic cylinder 226 is activated to drive the slide 223 to make precise longitudinal movements along the internal guide structure of the housing 222 (during this process, the guide wheel 227, which is rotated and installed on the outer wall of the slide 223, maintains rolling contact with the inner wall of the housing 222, reducing frictional resistance and wear during the movement). Then, the mounting head 224 drives the upper die 225 to perform a stable bending operation downward, completing the bending process of the sheet metal part.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0031] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated sheet metal bending processing device, comprising a processing table (1), wherein a lower die (3) is fixed on the top of the processing table (1), characterized in that: The processing table (1) is equipped with a processing mechanism (2) for sheet metal processing. The processing mechanism (2) includes: The feeding assembly (21) includes a base frame (211) fixed to the front end of the top of the processing table (1). A bracket (212) is fixed to the upper end of the base frame (211). A connecting plate (213) is slidably installed on the bracket (212). An extension frame (214) is fixed to the left end of the base frame (211). A cylinder (215) is pivotally connected to the extension frame (214), and the output end of the cylinder (215) on the right side is pivotally connected to the connecting plate (213). A vertical plate (216) is fixed to the top of the base frame (211). A transverse groove (217) is provided on the rear surface of the vertical plate (216). A longitudinal groove is provided at both ends of the transverse groove (217). (218) A connected oblique groove (219) is provided at the lower end of the longitudinal groove (218), and the upper end of the oblique groove (219) is connected to the transverse groove (217). A rotating plate (2110) is installed inside the upper end of the oblique groove (219). A vertical rod (2113) is fixed at the bottom of the connecting plate (213). A sliding sleeve (2114) is installed on the vertical rod (2113) in a longitudinal direction. A cam (2115) is installed at the front end of the sliding sleeve (2114) and is located inside the vertical plate (216). A pneumatic gripper (2117) is fixed at the rear end of the sliding sleeve (2114) through the extension rod (2116). A bending assembly (22) is set on a processing table (1) and used for bending sheet metal parts.

2. The automated sheet metal bending processing device according to claim 1, characterized in that: The feeding assembly (21) also includes a magnet (2111) fixed to the lower end of the rotating plate (2110).

3. The automated sheet metal bending processing device according to claim 1, characterized in that: The feeding assembly (21) also includes grooves (2112) formed on the upper left and right sides inside the transverse chute (217).

4. The automated sheet metal bending processing device according to claim 1, characterized in that: The feeding assembly (21) also includes a guide rail (2118) fixed to the bottom of the upper end of the bracket (212), a slider (2119) is slidably mounted on the guide rail (2118), and a connecting plate (213) is fixed to the bottom of the inclined groove (219).

5. The automated sheet metal bending processing device according to claim 1, characterized in that: The processing table (1) has a lifting machine (221) fixed at the top rear end. A housing (222) is installed on the sliding part of the lifting machine (221). A slide block (223) is longitudinally slidably installed inside the housing (222). An installation head (224) is fixed at the lower end of the slide block (223). An upper mold (225) is installed at the lower end of the installation head (224). A hydraulic cylinder (226) is installed at the upper end inside the housing (222) and is used to drive the slide block (223).

6. The automated sheet metal bending processing device according to claim 5, characterized in that: The bending assembly (22) also includes a guide wheel (227) that is rotatably mounted on the outer wall of the slide (223) and engages with the inner wall of the housing (222).

Images