Clinch Press for Manual Fastener Installation
Operator-based processing of self-clinching fasteners
The A220-CP is a semi-automatic clinch press that is designed to install clinch nuts, studs, and other self-clinching fasteners.
This C-frame clinch press is a stationary workstation designed for production processes that require an operator. It is ideal for small quantities and single parts. Clinch fasteners can be fed manually or via a feeding system.
The press machine is designed similarly to the A240-CP robotic workstation. The difference is that an operator places the processed sheet metal component instead of a robot.
Processed fasteners: clinch nuts, rivet nuts, self-piercing nuts, clinch studs, self-piercing studs, rivet studs
Fastener thread size: M5, M6, M8, M10, M12
Working direction: from top to bottom
Designs
Semi-automatic work stations for various fasteners
Semi-automatic work station A220-Spin-Pull for self-clinching rivet nuts in closed profiles
The patented Spin-Pull process enables the automatic setting of self-clinching nuts and self-clinching rivet nuts in one-sided joining positions. For thicker sheets, use the self-clinching nut with a washer or spacer. The operator inserts the sheet metal profile to be processed and guides the setting unit to the component.
Semi-automatic work station A220-BI for blind rivet nuts and studs
The assembly process is similar to that of the A230-BI Robotic End-Of-Arm Tool. With this model, however, the operator places the processed sheet metal component on the setting unit instead of moving the unit to the component.
Semi-automatic work station A220-NMS for press-fit combination of a nut and washer
The nut-washer combination creates a high-strength structural connection. This semi-automatic clinch press system allows for the installation of self-clinching rivet nuts and additional washers in one step. The operator places the component on the inserted washer. Then, a force stroke connects the nut and washer to the component.
Advantages of the Clinch Press
- Process-reliable installation of clinching fasteners
- Parallel drive (patented) for efficient tool movements and low wear
- Low compressed air consumption and active tool protection
- Active tolerance compensation (patented)
- Feeding system and controller module are placed outside the danger zone
- Integrated displacement measurement system with active pre-stroke before the setting stroke
- Process monitoring with force-displacement evaluation
Functionality
Initially, all machine components are in the home position. The self-clinching fastener is either supplied by the feeding system or manually inserted into the holder. Then, the component is positioned correctly with both hands. If necessary, it is held in place when the foot switch is activated.
In automatic mode, the setting process is started and performed automatically with the two-hand operation or a foot switch. Then, the plunger moves toward the component at a reduced speed.
Throughout the entire setting process, both keys of the two-handed operation must be pressed. If a key is released, the plunger will stop. When the process is activated via the foot switch, the component must be held with both hands throughout the entire process. The foot switch is not released until the setting process is complete.
After the fastener is installed, the plunger returns to the home position. After setting all the fasteners, the operator removes the sheet metal component.
Automatic mode
The fasteners are pressed in during automatic mode. Movements are not triggered until release signals are transmitted to the assembly system.
Manual mode
In manual mode, adjustments are made directly on the press machine. With this operating mode, individual movements can be activated.
Process safety
The clinch press is positioned so that the operator can easily and safely access all operating elements, preventing dangerous situations. The two-hand operation is located approximately 50 cm away from the danger zone.
Components
Emergency stop (1)
The emergency stop button is actuated in dangerous situations. This stops the clinch press and all machine movements immediately.
Two-hand operation (2)
The setting process begins with a two-handed operation. Both keys must be pressed and held down simultaneously.
Foot operation (alternative) (3)
The setting process begins when the foot switch is pressed. After the setting process is complete, the foot switch is released.
Pneumatic maintenance unit (4)
The pneumatic maintenance unit, hidden in the picture, checks, maintains, and regulates the incoming compressed air. The pressure regulator adjusts the incoming pressure and can shut it off if necessary.
Control cabinet (5)
The control cabinet contains the electrical and pneumatic control components. The main switch on the cabinet turns the assembly system on and off.
Controller module (6)
The clinch press is operated via the controller module. The control panel can be mounted on the C-frame press, assembly cell, or feeding system. The software in the controller module also enables process evaluation. It records and evaluates the force-displacement curve of the entire assembly process.
See A240-CP robotic workstation for central components of the press machine.
Connections
- Power supply: connection at the control cabinet.
- Compressed air supply: connection on the maintenance unit.
- Signal connection: press machine and two-hand operation.
- Signal connection: feeding system and press machine.
- Shot hose from the feeding system to the press machine.
- Power supply of the feeding system.
- Compressed air supply of the feeding system.
Technical Data
Operating air pressure: 6 bar
Electrical power supply: 24 V / 4 A
Setting stroke max.: 14 mm
Setting force max. (standard/strong version): 80 kN / 150 kN
Jaw height / setting stroke: 150 mm, 200 mm, 250 mm
Groove depth: 250 mm, 350 mm, 450 mm, 600 mm, 750 mm
Effective line length from press machine to feeding system: 5 m (standard)
Noise emissions: approx. 78 dB(A)
Interface connection: Profinet (standard), Profibus, EtherNet/IP, DeviceNet
Dimensions (L x W x H):
Values apply to a working height of 1000 mm
Version 80 kN or 150 kN: from 1100 x 400 x 1800 mm to 1500 x 650 x 1900 mm
Weight:
Version 80 kN: from 530 kg to 1220 kg
Version 150 kN: from 780 kg to 1950 kg
See A240-CP robotic workstation for more details.
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