If you’re looking to visually grasp the DELEM DA-66S Bend Sequence for your production tasks, understanding how to display it graphically is essential.

Using the bend sequence feature, you can view and modify your product’s bend sequence with ease. Selecting the correct method and utilizing the graphical overview enables you to manage and optimize the bending process efficiently.

This functionality allows one to switch between different viewing modes, facilitating enhanced visualization of your product’s bending steps and ensuring optimal results. In this guide, I’ll walk you through the steps to effectively display and navigate the DELEM DA-66S Bend Sequence using its graphical capabilities.

Understanding the DELEM DA-66S Bend Sequence

To effectively manage and optimize your production, understanding the DELEM DA-66S Bend Sequence is crucial. This sequence can be determined either automatically or manually, depending on the product and tool configuration. The graphical interface of the DELEM DA-66S allows you to visualize each step of the bending process, ensuring precise execution and troubleshooting capability.

To begin determining the DELEM DA-66S Bend Sequence for an active product, ensure that the appropriate tool configuration is set up. Once the configuration is ready, you can initiate the bend simulation by pressing the “Bend Sequence” navigation button. From here, you have the flexibility to choose between several methods to define the bend sequence.

You can opt for “Manual Bend Sequence Programming” if you prefer a hands-on approach starting with the unfolded product. Conversely, if you want the system to handle it, select “Automatic Bend Sequence Computation,” which offers options for tool optimization or renewing the tool setup. When using the automatic method, the software calculates the sequence beginning from the bent state of the product, unfolding it backward to the starting state. This can be achieved automatically or through function keys available on the interface.

Each method provides a unique approach depending on whether you start with a bent or flat product, giving you comprehensive control over the process.

Main bend sequence selection options

Manual

With this determination method the bend sequence has to be programmed manually.

Sequence only

This computation method will calculate a bend sequence based on the existing tool setup in the machine.

Sequence + tool optimization

This computation method will use the existing tools in the machine to optimize tool positions

and tool stations in order to have an optimized bend sequence on the adjusted tool length and positions.

Sequence + tool setup

This computation method will remove the existing tool setup and calculate an optimized bend sequence based on the best fit tools for every bend from the tool library (resulting in a most optimal product radius).

During the computation the bend sequence computation can be canceled or stopped;

• Cancel is shown when no valid bend sequence has been computed yet

• Stop is shown when a valid bend sequence has been computed already. This could be the not optimum in production time.

Functions

Unbend

Unbend the currently shown bend or start searching for the next feasible bend to unfold.

Bend

Bend the product in the simulation screen or switch to the next bend step.

Assignments

Open a screen with assignments, parameters for the bend sequence computation.

Bend sequence

To resume the computation of the current bend sequence, to start a new bend sequence, to reload the original bend sequence or to save a complete bend sequence. These functions can be found under the bend sequence command button.

+Resume computation

Compute a valid bend sequence for the remaining bends starting with the selected bend.

+New

Start a new bend sequence, any existing sequence is removed.

+Reload

Restore an existing bend sequence from disk, but disregard any related CNC program. This is also including corrections.

After a bend sequence has been calculated or determined, the Save and Save as can also be found in this menu.

+Save

Save a bend sequence will save the resulting CNC program on disk. The resulting CNC program contains all necessary axis positions and tool IDs. This command can only be executed when a complete bend sequence has been determined.

+Save as

Save as can be used to save the current product and its bend sequence under an alternative name. This enables an easy way to make product differentiations (variants). When the bend sequence screen is left, the product will automatically be saved. If there are changes made, and save is not used, this will be prompted on the screen.

Show bend sequence

To show a mosaic screen with a step-by-step graphical overview of the bend sequence. The bend sequence can also be viewed and determined in a 3D view. This can be achieved via the view mode selection.

View select

Within the bend sequence screen views can be switched upon required choice. The view functions are located opposite of the command buttons in the main screen.

View functions

Toggle between some possible ways of displaying the product/tool configuration:

• product

• product/tools

• all

Bend selector

Within the bend sequence screen bends can be selected and navigated thru with the bend selector. In the top of the screen the number of bends is indicated with preliminary bend selectors. After completing the bend sequence, these are all colored, active and show a turn indicator.

From then bends can be tapped to easily to select the desired bend data. In the bend selector the turn indicator will be displayed showing green, yellow or red colors to indicate the level of complying the assignments of the bend sequence.

Unbend product

In order to generate a CNC-program the bend sequence must be known. There are two ways to achieve this:

• Press the function key Compute. The control will automatically compute the quickest

possible bend sequence for this product.

• Press the function key Unbend repeatedly, until the product is completely unbent.

When the product is completely unbent, press the function keys Bend sequence and Save to generate and save the CNC-program.

It is possible that no bend sequence has been found for various reasons:

• The installed tools are not correct. Return to the tool configuration menu to change the

tool configuration.

• The assignments are incorrect. Return to the assignments menu to modify the

assignments.

• A collision has been detected during unbending. It is possible to manually adjust the

bend sequence with the available functions. This is explained in the following sections.

Manual selection of bends

To determine or adjust the DELEM DA-66S Bend Sequence, start by accessing the bend sequence screen through the “Bend Sequence” button. If you’re working with a product that is already bent, select “new” to initiate an unbend sequence. For starting from a flat product, choose “new flat” to define the desired bending sequence manually. The system usually suggests the next bend based on programming, product shape, and tools, but you can adjust this using the manual selection features.

When using the manual bend sequence mode, it’s active by default in 2D view, but you’ll need to enable it in 3D view from the left-side options. Be aware that modes like ‘shift gauge mode’ and ‘shift product mode’ are exclusive to 3D view and disable manual control. For bent products, you can tap bends to add them to the unbend sequence from highest to lowest number. For flat sheets, select bends starting from number 1 upward.

Visual cues help manage sequences: green circles indicate feasible bends, red ones show potential collisions, and yellow highlight bends that need adjustments. Tapping an already selected bend lets you continue editing the sequence from that point.

Functions:

The following functions, available for modification of the bend position, are shown in the screen when active.

Change side

Lay on finger

Undo

Shift product

In the bend simulation menu, the control computes the next possible bend to unbend. The product is placed between the tools, where there is no collision with the tools or the machine. In case you want to shift the product under the tool set (which is mounted), you can move the product by selecting the function ‘Shift product’.

Functions:

Shift product

Move the product by dragging it to the desired position, upon choice under a different tool

station.

Undo

Shift gauge

The control automatically computes at each bend the X axes, R axes and Z axes positions.

It takes into account the values of the option assignments and searches for a solution without

collision of the fingers with the product. In order to be able to choose alternative positions, you can move the fingers manually by selecting the function ‘Shift Gauge’.

The fingers can be moved by means of the different available functions.

Functions:

Select finger

Select the finger to move.

Shift finger

Move the selected finger by dragging it to the desired position.

Change side

Lay on finger

Pinch corner

Undo

Assignments

When working with the DELEM DA-66S Bend Sequence, understanding and setting up assignments are crucial for effective bend sequence computation. These assignments are parameters that help control how the bend sequence is calculated. To access this, navigate from the bend sequence screen and use the “Assignm” function key to open the assignments screen. By correctly configuring these parameters, users can significantly influence the effective computation of the DELEM DA-66S Bend Sequence.

The automatic computation of the DELEM DA-66S Bend Sequence strives to balance several conditions. It optimizes the sequence for minimal production time while ensuring there are no collisions between the product and machine or between the product and tools. To achieve this, the system considers factors like handling possibilities and aims to minimize unnecessary handling or setup changes. This optimization is an integral part of using the DELEM DA-66S Bend Sequence effectively to enhance manufacturing efficiency.

Programming the DELEM DA-66S Bend Sequence requires setting certain parameters that influence its computation. These parameters include machine-related aspects such as tool compatibilities and setup times, as well as factors associated with product accuracy and handling capabilities. By carefully adjusting these input parameters, users can find an optimal bend sequence that ensures precision and efficiency in the bending process. Understanding these settings is key to maximizing the capabilities of the DELEM DA-66S Bend Sequence.

Functions:

Load defaults

Load default assignment settings. It is possible to determine a set of assignments which have the most optimal values for your situation. This set can be stored by tapping Save As Default. While programming another product you can recall this previous fixed set by loading the values via Load Defaults.

Save as default

Save the current settings as default assignments settings.

Cancel

Leave the current screen without saving changes.

Accept

Save the changes and leave the current screen.

Assignments – general

When configuring the DELEM DA-66S Bend Sequence, it’s essential to adjust several parameters for optimal performance. First, consider the Optimization Degree, which ranges from 1 to 5. Entering a higher number will provide more alternatives for each bend but will also increase computation time. Choose a degree that balances between speed and thoroughness for your specific needs.

Next, set the Front Extend Ratio, which ranges from 0.01 to 1.0, ensuring the minimum allowable product length extends in front of the press for handling. You can select “Comply If Possible” to aim for this ratio unless it results in no solution or “Comply Always” if strict adherence is necessary, though this might limit solutions.

Adjust the Radius Factor within a range of 0.1 to 2.0 to correct the computed bend radius, which will affect the X-axis position and blank length.

For Tool Length Tolerance, ensure that the difference between tool length and bend length is within permissible limits to be accepted.

Enable Product-Product Collision detection based on your preference, choosing between “disabled,” “treat as warning,” or “treat as error.” This setting helps manage how the system handles potential collisions.

Finally, program the Minimum Y Opening required for handling the product by adjusting the Y-axis opening setting, considering both the unfolded dimensions and sheet thickness limits to prevent unnecessary tilting during product removal. Properly configuring these parameters ensures an efficient and accurate DELEM DA-66S Bend Sequence.

When configuring the DELEM DA-66S Bend Sequence, be mindful of the Unfolded Dimensions Limit. This parameter ensures that the Y opening is calculated based on product boundaries. For larger products exceeding this limit, the Y opening will adjust to side lengths, thereby avoiding unnecessary tilting during product removal.

Another crucial parameter in the DELEM DA-66S Bend Sequence setup is the Sheet Thickness Limit. Similar to unfolded dimensions, this setting ensures the Y opening is appropriate for thick sheets and larger products. By accounting for the side lengths, it prevents excessive tilting when moving the product out, which streamlines the bending process and maintains operational efficiency.

Assignments – Backgauge possibilities

Backstop against sharp angle allowed

Specify if backstop may be placed against an angle smaller than 90°.

• No = not allowed

• Yes = allowed

Backstop-die, intermediate bend

Set to allow if there may be a bend between the die and backstop.

Selection possibilities:

• Permitted

• Permit if unavoidable: if it results that no solutions are to be found, than it is permitted

• Prohibited: never allowed

Edge tolerance

In case backstop is against flat sheet an angle tolerance is allowed (deviation from horizontal). To be programmed in degrees of tolerance (0 – 90° input).

90 Degree tolerance

The maximum allowed deviation from vertical (90°), when the backgauge is against a bent angle which is not 90°.

Lay-on backstop limit

This parameter is useful in case the press brake has been equipped with backgauge fingers on a moving R-axis, having a so-called “lay-on” construction.

When the length of the sheet at the backside of the machine is larger than this limit, the X-axis and R-axis positions will be corrected automatically so the sheet will rest on the backgauge finger. This is only possible if an automatic R-axis is present.

Minimum finger-product overlap

The minimum overlap between backgauge finger and product, to avoid unnecessary/ unwanted parking of a backgauge finger in the bend sequence calculation.

Retract optimization

The DELEM DA-66S Bend Sequence includes a feature known as retract optimization. This feature, when enabled, optimizes the backgauge position during post-processing and storage of the product. As part of the DELEM DA-66S Bend Sequence, retract optimization ensures that when retracting towards the next bend’s backgauge position, that position is immediately utilized as the retract point. This streamlining means the backgauge is prepared for the next bend without delay. While this powerful aspect of the DELEM DA-66S Bend Sequence is turned off by default, activating it can greatly enhance productivity and operational flow.

Show bend sequence

The DELEM DA-66S Bend Sequence becomes accessible when the Show Bend Sequence function is activated. This feature provides a comprehensive graphical overview of the entire bend sequence process, helping users to visualize each step after the initial unbend. The overview includes both determined and undetermined bends, where the latter is marked with a question mark for clarity.

In the DELEM DA-66S Bend Sequence interface, each image representing a bend can be enlarged or reduced using provided functions, allowing for better focus on specific details. Additionally, these images can be rotated with simple finger movements, enhancing the user’s ability to inspect bends from multiple angles. This interactive feature of the DELEM DA-66S Bend Sequence ensures users can effectively plan and adjust bend steps as needed.

Frequently Asked Questions(FAQ)

Conclusion

In conclusion, mastering the DELEM DA-66S Bend Sequence is essential for optimizing the performance and efficiency of your press brake operations. By understanding the different methods of bend sequence determination—be it manual, automatic, or with tool optimization—you can tailor the process to suit your specific requirements. Utilizing features such as the graphical overview and the ability to simulate bends enhances precision and facilitates problem-solving for any potential issues. For those looking to refine the bending process further, adjusting parameters in the assignments section can lead to more efficient production cycles.

To fully leverage the capabilities of the DELEM DA-66S Bend Sequence, we recommend diving deeper into our documentation or reaching out to our team for personalized support and guidance. Whether you’re seeking to resolve specific operational challenges or enhance your existing setup, our experts are ready to assist. Don’t hesitate to contact us for more information or explore additional resources on our website to ensure you’re getting the most out of your equipment.