195 results about "Sheet metal bending" patented technology

An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backgage guide member which guides placement of a tooling stage along the die rail the bending apparatus. A method is provided for learning motion control offset values, and for eliminating the need for superfluous sensor-based control operations once the motion control offset values are known. The planning system may be used for facilitating functions such as design and assembly system, which may perform designing, costing, scheduling and/or manufacture and assembly.

A projector module adopts a structure having an optical image forming block and an optical block integrated via a locking member. The optical image forming block adopts a structure achieved by disposing an aluminum substrate at which an LED is mounted and a liquid crystal panel in a casing constituted with a plastic material having low thermal conductivity. The locking member is formed by bending a metal sheet through a sheet metal bending process and the locking member is set in surface contact with the substrate. The optical block adopts a structure achieved by disposing a PBS and a reflecting member at the casing constituted with a plastic material having low thermal conductivity with a quarter-wave plate disposed at the boundary of the two members.

A setup planning technique is provided in which a family of parts to be manufactured is identified, and the setup constraints imposed by the various bending operations in the part family are determined. The setup constraints may define or describe spatial constraints on the sizes and locations of various tooling stages in the setup. After identifying setup constraints, setup plans are generated that satisfy all setup constraints. Any setup plan that satisfies all setup constraints may then be utilized to accommodate every part in the part family. Constraint propagation techniques may be utilized to identify compatible setup constraints and create setup plans. According to the various features and aspects of the invention, dissimilar sheet metal parts can share setups, and the need for extra tooling and fixturing may be minimized. Further, the present invention provides potential savings over state-of-the-art systems, and increases production capability and overall through-put of manufacturing facilities.

The invention discloses an adjustable Z-shaped offset bending mold and belongs to a sheet metal bending mold. The adjustable Z-shaped offset bending mold is characterized by mainly comprising an upper mold and a lower mold, wherein the upper mold mainly comprises an upper mold seat, an upper fixed press mold, an upper adjustable press mold, an upper combined gasket and an upper fixed bolt; the lower mold mainly comprises a lower mold seat, a lower fixed press mold, a lower adjustable press mold and a lower fixed bolt; the lower part of the upper mold seat is provided with a right-angled upperinclined through groove which forms a delta included angle with the pressure line of a bending machine; the upper inclined through groove is internally and correspondingly provided with the upper fixed press mold, the upper adjustable press mold and the upper combined gasket; the upper part of the lower mold seat is provided with a right-angled lower inclined through groove which also form a delta included angle with a vertical central line; the lower inclined through groove is internally and correspondingly provided with the lower fixed press mold, the lower adjustable press mold and the lower combined gasket; all the bottom surfaces or top surfaces of the upper fixed press mold, the lower fixed press mold, the upper adjustable press mold and the lower adjustable press mold are inclined surfaces which form theta included angles with the bottom surfaces or top surfaces of the upper mold seat and the lower mold seat correspondingly; and the upper mold and the lower mold are combined, and then the Z-shaped workpiece is formed. The adjustable Z-shaped offset bending mold has the advantages that the cost is low and the quality is good.

The invention discloses a sheet metal bending technology which comprises the following steps: 1, before a bending production process, preparing to calculate the unfold size and positions of all hole sites and notches of a component; according to the principle that the length of a bent neutral layer is not changed, calculating the unfold size of a component sheet matal; the unfold length of the part sheet matal is sum of length of a straight part and length of the neutral layer of a bent part; 2, according to the size and material thickness on a drawing, determining a cutter and a cutter groove during bending, wherein avoidance of deformation caused by collision between a product and the cutter is key to selection of an upper die, and selection of a lower die is determined according to the thickness of a sheet material; and 3, determining the bending sequence, wherein the bending rule is as follows: internal first and external second, small first and big second, and special first and common second; for a workpiece to be tightly pressed, firstly, the workpiece is bended by 30-40 degrees, and then the workpiece is tightly pressed by a leveling die. The sheet metal bending technology ensures that all machined hole sites, notches and the boundary dimension of the bended component meet the expected requirements.

A sheet metal bending tool for bending materials, such as flat metal sheets is disclosed. The tool has a restraining base for receiving and cooperatively holding a sheet metal workpiece and the tool has a bending component that is rotatably mounted to the restraining base, the workpiece is held, cooperating with the restraining base component, and the clamp bar for stabilizing the workpiece while the workpiece is held and bent by the rotating action of the bending component. In the preferred embodiment, the workpiece is restrained by a template comprising a pattern of holes drilled, a hole receiving a peg or means of stop, the stops (pegs) constraining the workpiece from movement while being bent act like a jig for measuring and predetermined incumbents. Holes are also drilled in restraining base and in the bending component at spaced intervals along lines that are run parallel to the line defined by the intersection of the bending component and the restraining base. There is a pull back bar that is used for the process of cutting. The Unit can be clamped down also. Rulers are installed on the clamp bar, and the slide table. The apparatus is designed so that two or more may be joined together to form a larger apparatus for the purpose of bending larger workpieces.

A roll bender machine for bending metal sheets which includes a roller driven in rotation and about which the sheet metal is rolled and at least two backing rollers adapted to receive and bear against a sheet while it is being bent around the roller. The backing rollers are mounted to rotate on a support that is adjustable. The bending roller and backing rollers are each associated with at least one set of devices for compensating their deflection. An arm is mounted on the machine for receiving coiled sheet metal and is provided with a housing in which the bending roller is at least partially received.

A roll forming apparatus is provided having a plurality of roll forming stations arranged in an advancing path and having at least one roll forming station including adjustable top and bottom rolls. The adjustable forming rolls include separate inner and outer sections. The inner roll sections are adjustable transverse to the advancing path in order to shift the position of bend introduction to a workpiece. In a preferred embodiment, each inner roll section cooperates with a backing collar which has preset stops of different heights to quickly and precisely adjust the apparatus to predetermined settings. The apparatus is particularly useful for forming flanges on duct sections where duct sections having different flange heights are desired. The at least one adjustable roll forming station can be used to retrofit existing non-adjustable roll forming apparatus.

The invention discloses a method for intelligently generating coordinates of bending teaching points of a sheet metal bending robot. The method includes the steps that first a virtual sheet metal bending machining environment which is the same as an actual machining environment is constructed by using parametric design and the automatic assembly technology; secondly, through the sheet metal part bending process planning technology, automatic acquisition of sheet metal part bending process information and automatic planning of a corresponding bending process are realized; then through the automatic tool assembly technology, automatic planning and tool assembly of a machine tool lower die bending tool are realized in the bending machining process; and finally, through the intelligent bendingmovement teaching point coordinate generation technology, intelligent generation of the bending teaching point coordinates of the sheet metal bending robot is realized. According to the method for intelligently generating the coordinates of the bending teaching points of the sheet metal bending robot, manual intervention in the sheet metal bending process is fundamentally reduced, the shortcomings of obtaining the bending teaching points by traditional manual online teaching are overcome, the design cycle of sheet metal bending machining is shortened, repetitive labor is avoided, and the product quality is guaranteed.

A bending machine for sheet metal comprises a bending assembly (2) provided with a tool holder crosspiece (3) which is mobile and supports a set (20) of bending tools (40, 41, 42, 43, 44) which are aligned, and mutually positionable, along a first longitudinal direction (A) so as to form predetermined compositions (CI, C2, C3, C4) of bending tools suitable to bend a workpiece (50) according to respective defined bending lines; the bending assembly (2) comprises moving means (5, 6) to move the bending tools (40, 41, 42, 43, 44) along the crosspiece (3), the set (20) of bending tools comprises, arranged adjacent and in sequence starting from an end (3a) of said crosspiece (3): four first bending tools (41) having a width of X+ p, one second bending tool (42) having a width of X+2-p, one third bending tool (43) having a width of X+3-p, one basic bending tool (40) having a width of X, three third bending tools (43), one fourth bending tool (44) having a width of X+4-p, two basic bending tools (40), one first bending tool (41), one second bending tool (42), a further set (21) of basic bending tools (40), wherein X is a basic width in mm of said basic bending tool (40) comprised between 30 and 70 mm, and p is a step between two lengths of subsequent tool compositions (CI, C2, C3, C4), comprised between 5 and 20 mm; the combination of one or adjacent more tools (40, 41, 42, 43, 44) of said set (20) of bending tools allowing obtaining bends having all the lengths starting from a minimum bending length equal to said basic width (X) with said step (p).

The invention discloses a sheet metal processing method for a conical pipe. The sheet metal processing method for the conical pipe comprises a to-be-processed workpiece and further comprises a bottom die, wherein the bottom die is mounted on an externally connected sheet metal bending machine; a tool holder capable of moving up and down and a pressure head connected with the tool holder are arranged above the bottom die respectively; the workpiece is placed on the bottom die; and the pressure head is arranged over against the bottom die and presses downwards the workpiece through the tool holder. According to the sheet metal processing method for the conical pipe, the bottom die of the sheet metal bending machine and the tool holder connected with the pressure head are used in a matching manner, so as to provide convenience for processing the workpiece and reduce the intensity of manual manufacture. Meanwhile, a welding procedure for manufacturing the workpiece is omitted, so as to improve the attractiveness of the workpiece and eliminate potential safety hazards caused by welding in manual manufacture. Moreover, compared with the manual manufacture, the method effectively improves the accuracy of the workpiece by the use of the bottom die of the sheet metal bending machine and the tool holder connected with the pressure head.

The invention discloses a method for manufacturing a metal composite panel. The manufacturing method includes the following steps: taking out the upper metal sheet and the lower metal sheet, cutting and blanking, and processing to obtain the upper sheet metal and the lower sheet metal with at least three bending edges. Sheet metal parts; bonding the PVC film suitable for the upper sheet metal part and the lower sheet metal part, folding the PVC film on the bending edge inward; evenly coating polyurethane adhesive, heating and rolling to form a composite Sheet metal parts; secondary bending and forming of composite sheet metal parts; drilling of bent parts with auxiliary processing parts; drilling holes in the auxiliary processing piece and the area to be drilled with a drill bit; The bent piece is cured and cured to obtain a metal composite panel. The metal composite board of the present invention guarantees excellent bonding strength and mechanical properties, is firm and stable, is smooth polished, is convenient to process, saves costs, is suitable for large-scale production, and can be widely used in building curtain walls, interior decoration, light industry manufacturing, furniture manufacturing, etc. field.

The invention deals with a sheet-metal bending machine containing a lower machine part and an upper machine part mounted on it in a movable way where on either of the upper and lower machine part there is a pair of working tools designed as a bending arm and a holding arm where the principle is that the upper machine part (3), or at least the pair of the working tools connected to it, is, in relation to the lower machine part (2), or at least in relation to the pair of the working tools connected to it in the feeding direction (L) of the processed metal sheet (14), mounted in a mutually horizontally sliding bond.

A sheet metal bending brake having a frame with a planar work supporting surface and a plurality of spaced frame members extending over the work support surface. Each frame member has a throughbore and these throughbores are aligned with each other. A plurality of elongated pivot arms are pivotally secured at one end to the frame for movement toward and away from the work supporting surface. Each pivot arm also includes a generally rectangular opening aligned with the frame member throughbores. A block is longitudinally slidably mounted in each pivot arm opening and this slide block is constrained against movement in a direction perpendicular to the work support surface. Each block furthermore includes a trapezoidal opening with spaced apart and parallel top and bottom surfaces and outwardly flared side surfaces. An elongated shaft extends through and is rotatably mounted to the frame member throughbores and this shaft also extends through the trapezoidal openings in the pivot arms. A plurality of eccentric cams are secured to the shaft so that one cam is associated with and positioned within each trapezoidal opening. This cam is dimensioned so that the cam contacts the outwardly flared side surfaces of its associated slide block regardless of the rotational position. Pivotal movement of the shaft thus displaces the pivot arms in a direction generally perpendicular to the work support surface due to the coaction of the eccentric cams with the side surfaces of the slide blocks.

The invention relates to a sheet metal bending system and method based on clamping controlling and staged bending. The sheet metal bending system comprises a driving motor, a clamping fixing seat and a host which are installed on a rack, the driving motor is provided with a bending shaft, and a work piece is arranged on the clamping fixing seat; the sheet metal bending system further comprises an ultrasonic wave thickness detector, an ultrasonic wave crack detector, pressure sensors, a roller and a controller which is connected with the host; the ultrasonic wave thickness detector, the ultrasonic wave crack detector and the pressure sensors are connected with the host through a DSP data processing module. According to the sheet metal bending system and method, through the combination of staged type bending and feedback controlling, the crack number is greatly decreased, and the machining quality is improved; the roller is arranged to perform extrusion friction on the inner concave face of the work piece, protrusive burrs and cracks are effectively removed, the subsequent machining process is omitted, and the machining cycle is shortened; the camping pressure is controlled by the pressure sensors, and therefore sheet metal deformation or disengagement is avoided, and the machining reliability is improved.

The invention provides a flexible sheet metal bending and forming machine and relates to the field of sheet metal bending. The flexible sheet metal bending and forming machine comprises a machine base, a moving seat and a frame body, wherein the frame body and the moving seat are arranged at the top of the machine base; in addition, the frame body is positioned on one side of the moving seat; a servo feed mechanism is fixed on one side of the top of the moving seat; in addition, one side of a driving shaft drives a manipulator to move; the bottom of the manipulator is connected with a linear guide rail in a sliding manner; the linear guide rail is arranged on the moving seat; and a material supporting mechanism for fixing sheet metal is fixed inside the moving seat. The flexible sheet metal bending and forming machine is arranged for one-time positioning of sheet metal and multi-time accurate bending; a required bending angle is controlled by a servo motor; the upper part and the lowerpart of the sheet metal can be simultaneously bent; and arc bending with any size within certain range is realized, the cost of equipment and a mold is reduced, the mold change time is shortened, labor intensity of an operator is reduced and the production efficiency is improved.

The invention relates to a sheet metal bending system and method with the angle regulating and controlling function and the phased bending function. The system comprises a driving motor arranged on a rack, a clamping and fixing base and a main machine. A bending shaft is installed on the driving motor. A machined workpiece is installed on the clamping and fixing base. The system further comprises an ultrasonic thickness detector, an ultrasonic crack detector, a pressure sensor, a rolling shaft, a proximity switch and a controller connected with the main machine. The ultrasonic thickness detector, the ultrasonic crack detector, the pressure sensor and the proximity switch all connected with the main machine through a DSP data processing module. According to the system, the quantity of cracks is greatly reduced through combination of phased bending and feedback control. The rolling shaft is arranged to perform extrusion and friction on the inwards-concave face of the machined workpiece, and protruding burrs and the cracks are effectively removed. The proximity switch is used for controlling the bending angle so that excessive bending can be avoided. The clamping force is controlled through the pressure sensor, a plate is prevented from deforming or falling off, and machining reliability is improved.

The invention discloses a bending following method and a sheet metal bending process based on a robot additional shaft. The bending following method comprises the following steps: S1, establishing a user coordinate system; S2, adopting a robot to grab a sheet metal to put the sheet metal on the upper surface of a die flatwise, and coinciding a tool coordinate system with the user coordinate system; S3, establishing the geometrical relationship between the distance from the bending part of the lower surface of the sheet metal to the upper surface of the die and the single-side bending angle ofthe sheet metal, and calculating bending following dynamic points to generate the bending following action program of the robot; S4, carrying out inverse solution on the point location position of themoving process of the robot, judging whether the robot meets the accessibility requirement, if yes, finishing the bending action, otherwise, carrying out step 5; and S5, according to the robot angleconfiguration, calculating the following drawing pace of the additional shaft, and if the additional shaft moves to a new position with the drawing pace multiplying the adjusting times of the drawingpace, returning to S3. With adoption of the bending following method, efficient and reliable automatic bending of the sheet metal is realized.