Catalog - GECHTER - (Version JPG) - Page n° 49 - PDF Catalogue | Technical Documentation

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Pressing Process Monitoring with Manual Toggle Presses

Process and quality monitoring of safety-relevant components, control of the operator's motion sequence with utmost efficiency

Pneumatic return stroke blocking mechanism for manual pneumatic aided presses type 4 to 56 kN HKPL

As described for the HKP/L standard type, riveting, punching, bending, cutting, and assembling operations for which a power stroke of < 6 mm is sufficient, are also possible with this type • The feed motion of the ram with inverted V guide is triggered by extending the toggle joint with a lever. The toggle joint operates a pneumatic position switch, triggering the pneumatic power stroke of max. 5.9 mm.

• To bring the power and feed stroke into the home position, the ram must reach a pneumatic position switch in the BDC, a freely adjustable amount of hold time must have run out, and the "UP" switch must be pressed. The locking cylinder is released when the power stroke repositions. If the BDC is reached, the production process was carried out correctly. The power and feed stroke can be brought into the home position. If the BDC is not reached, the production process was not carried out correctly. The power and feed stroke cannot be returned into the home position the usual way. The "Release" switch must be operated. Under the effect of an adjustable shock absorber, the lever returns into its home position with every stroke.

Return stroke blocking mechanism for manual toggle press type 2 to 4 kN HZP type 2.5 HKPV to 8/16 HKPV

• If precise embossing, bending, riveting, and cutting operations are required, the return stroke blocking mechanism ensures that the press ram reaches exactly the bottom dead center.

• The return stroke blocking mechanism is activated when the ram has reached a position of approx. 8 mm over the bottom dead center.

• After the working stroke has been completed, a return stroke of only approx. 18 mm - corresponding to a lever return stroke of approx. 60° - is required to carry out the next working stroke.

• The blocking mechanism can simply be latched or unlatched if required.

• Subsequent installation is not a problem.

Differences to the standard function:

• a locking cylinder prevents the return movement of the toggle joint

• the ram stays in the BDC after the power stroke has been triggered

• power and feed stroke can only be returned into the home position if certain conditions are fulfilled

High-precision depth adjustment adapter for all types

• If precise embossing, bending and riveting operations are required, the PTE (precision depth adjustment) guarantees the precise depth adjustment of the clamped tool.

• The PTE has two interior hardened guides, which prevent the clamped tool from disadjustment.

• If required, the PTE can be clamped and unclamped like a tool.

• If the PTE is adjusted, the tool's position remains the same, except for its depth adjustment.

• Due to its compact design, the PTE's adjustment mechanism, fine thread spindle, and precise guides are safe from damage and fouling.

• Owing to the PTE's precise and stable guiding, accurate work is also possible when tools without a guide are used.

• All PTE components are surface-hardened.

• Adjustment is carried out via a fine thread spindle by twisting the chuck adjustment. Turning the chuck adjustment by one mark will result in a

change of 0.02 mm.


Technical data	PTE 10/10	PTE 15/15	PTE 25/25
0 clamping pivot	0 10 mm	0 15 mm	0 25 mm
0 holding fixture bore	0 10 mm	0 15 mm	0 25 mm
0 chuck adjustment	0 40 mm	0 40 mm	0 65 mm
scaling	60	60	100
change per mark	0,025 mm	0,025 mm	0,02 mm
adjustable range	6 mm	6 mm	6 mm
daylight	65 mm	65 mm	90 mm

Catalog - GECHTER - #49

Notching tool, Crimping machine, Slide table, Crimping press, Bench press