An adjusting system for adjusting the guide clearance of a sliding guide of a movable component for a press, and a method for adjusting the position of at least one slider of the sliding guide at the press.

Abstract

The present invention relates to an adjustment system for adjusting the guide clearance of a sliding guide of a movable component for a press, the adjustment system having at least one guide member (1) comprising at least one slider (9) adjustable transversely to the direction of movement of the component to be guided in the press, at least one adjusting wedge (5), and at least one guide wedge (8), the adjustment of which relative to each other causes displacement of the slider (9) transversely to the direction of movement of the movable component, wherein the adjustment system is characterized in that the adjusting wedge (5) is steplessly adjustable by means of at least one screw drive. The invention also relates to a method for adjusting the position of at least one slider of the sliding guide at a press having such an adjustment system.

Description

Technical Field

[0001] This invention relates to an adjustment system for adjusting the guide clearance of a sliding guide for a movable component of a press. The system has at least one adjustable guide member comprising at least one slider adjustable transversely to the direction of movement of the component to be guided in the press, at least one adjusting wedge, and at least one guide wedge. Adjustment of the adjusting wedge and guide wedge relative to each other causes the slider to shift transversely to the direction of movement of the movable component in the press. In the context of this invention, the press is, for example, a metal extrusion press, either horizontal or vertical, having a press frame and at least one traveling beam (Laufholm) or receiver support that is slidably guided in the press frame, for example, at a guide post. Background Technology

[0002] For example, such an adjustment system is known from EP 3 003 701 B1. EP 3 003701B1 relates to a system and method for adjusting a slider of a movable transverse carrier of a press relative to a column of the press, wherein the slider can slide at the column. The adjustment system includes: a first wedge, which is constructed integrally with the movable transverse carrier; a second wedge, at which the slider is fixed; a pin defining an axis and having a first end eccentrically arranged relative to the axis, wherein the first end is received in a cavity provided in the second wedge; and a first actuating device for actuating the pin and configured such that rotation of the pin causes the first end to cause the second wedge to slide at the first wedge in a direction transverse to the axis. The pin is moved between a locked state and an unlocked state by means of a second actuating device configured as a hydraulic cylinder. In order to change the position of the movable wedge and thus the position of the slider, the pin must first be moved to the unlocked state. The clearance is then adjusted by rotation of the pin at its eccentric end. After adjustment, return the pin to the locked state.

[0003] The organization is relatively complex. Adjustments are very time-consuming and difficult to automate.

[0004] Other prior art is known, for example, from document CN 107243586 A. Here, an adjustment system having wedges that can be adjusted relative to each other is also described, in which the gap is adjusted by means of washers or shims.

[0005] Other prior art is known from documents CN 201669364 U, DE 39 01 961 A1, JP 2525281, JP H04141 337, DE 19728 893A1, DE 27 58 340 A1, CN 201 046 513Y, WO 2011 / 047881A1 and US 5 775 212.

[0006] Other control systems of this type are known from the documents JP 2013-220474 A and JP 2011-152 553A. Summary of the Invention

[0007] The purpose of this invention is to provide an adjustment system of the type mentioned at the beginning, which has a simple structure and can operate automatically.

[0008] This objective is achieved by having an adjustment system according to the invention. This objective is also achieved by a method for adjusting the position of at least one slider of a sliding guide at a press having such an adjustment system according to the invention.

[0009] Advantageous designs of the invention are described below.

[0010] According to a first aspect of the invention, an adjustment system is provided for adjusting the guide clearance of a sliding guide for a movable component of a press. The adjustment system has at least one adjustable guide member comprising at least one slider adjustable transversely to the direction of movement of the component to be guided in the press, at least one adjusting wedge, and at least one guide wedge. Adjustment of the adjusting wedge and guide wedge relative to each other causes displacement of the slider transversely to the direction of movement of the movable component. The adjustment system according to the invention is characterized in that the adjusting wedge is steplessly adjustable by means of at least one screw drive. The adjustment system according to the invention can be a fixed component of the press; however, it can also be constructed as a correspondingly prefabricated separate structural unit. The movable component of the press is, for example, a traveling beam, a receiver support, etc., which can move, for example, between crossbeams or yokes of the press frame at guide posts, etc. Preferably, the adjustment system according to the invention can be installed in a free forging press, a die press, an isothermal forging press, a ring press, a piercing press, a drawing press, a deep drawing press, and / or an extrusion press.

[0011] In particular, the adjustment system according to the invention can be implemented with very simple structure. The guide clearance of the sliding guide can be adjusted relatively easily and automatically by means of the stepless adjustment of the screw drive.

[0012] The core of this invention lies in achieving adjustability through a wedge pair comprising an adjusting wedge and a guide wedge acting thereto. The adjusting wedge can be steplessly displaced along the axis of the main shaft via a spindle connected thereto, and thus the guide wedge can be moved in or out perpendicular to the main shaft axis. The adjusting wedge and the guide wedge are abutted against each other, wherein the adjusting wedge can be moved parallel to the main shaft axis by an actuating screw drive, and the guide wedge is displaced laterally to the main shaft axis.

[0013] In the adjustment system according to the invention, the screw drive includes at least one spindle driven by a servo motor, which interacts with the motion thread of the adjustment wedge. The adjustment wedge may be configured to have a corresponding threaded hole. Alternatively, the adjustment wedge may be fixed to a spindle nut into which the spindle engages. The servo motor, in the sense of the invention, may also have a transmission mechanism and / or act on more than one spindle.

[0014] Furthermore, according to the present invention, at least one measuring value transmitter is provided, which detects the guide gap of the sliding guide and outputs the guide gap to a control and / or adjustment device to automatically adjust the guide gap.

[0015] The spindle, adjusting wedge, and guide wedge can be arranged in a common housing and can form a structural unit together with the slider as an adjustable guide component.

[0016] Suitably, the spindle is rotatably supported in the sleeve of the housing. Furthermore, suitably, the slider is replaceably fixed at the guide wedge.

[0017] According to another aspect of the invention, a press having an adjustment system of the type described above is provided. The press may include a press frame and at least one travel beam and / or receiver support movable within the press frame, and a sliding guide for the travel beam and / or receiver support. The sliding guide may, for example, be located at a guide post of the press frame, which interacts accordingly with a slider of the adjustment system according to the invention. The press may, for example, be configured as a 2-post or 4-post press.

[0018] According to another aspect of the invention, a method is provided for adjusting the position of at least one slider of a sliding guide in a press having an adjustment system of the type described above. The method is characterized by measuring the guide clearance between the sliding surface of a movable component of the press and the slider, and comparing this guide clearance with a given guide clearance as a nominal value, wherein, if necessary, the main shaft of the adjustment system is adjusted or rotated until the actual guide clearance (actual clearance) matches the given or predetermined desired guide clearance (target clearance).

[0019] During initial operation, it is advantageous to calibrate the adjustment system and save the measured values ​​detected. This allows for comparison with subsequent measurement data, for example, to predict further development or maintenance intervals of the press. The detected measurement data is preferably recorded in a data storage device and processed for later evaluation. Thus, for example, subsequent quality fluctuations in the product can be compared with and / or interpreted using the press's measurement data. Furthermore, it is advantageous that the measurement data is visualized for the equipment operator, and deviations from nominal values ​​are highlighted in color. In the method according to the invention, the spindle can be automatically adjusted by a servo drive based on the measured values ​​of the guide gap detected by the measurement value transmitter. For example, a stepper motor can be configured as the servo drive.

[0020] In a particularly preferred variant of the method according to the invention, the adjustment of the spindle is detected by means of at least one adjustment value transmitter, and the necessary timing for the replacement of the slider is calculated from the completed adjustment stroke. The completed adjustment stroke can be summarized, for example, in the control and / or adjustment device. Attached Figure Description

[0021] The invention is described below with reference to embodiments shown in the accompanying drawings. Wherein:

[0022] Figure 1 A cross-sectional view of an adjustable guide component of the adjustment system according to the present invention is shown; and

[0023] Figure 2 The adjustable guide component in the mounting position at the press is shown corresponding to... Figure 1 A cross-sectional view. Detailed Implementation

[0024] The adjustment system according to the invention includes at least one guide member 1 of the type described below. The adjustment system may include a plurality of guide members of the type described below, as well as devices or a plurality of guide members for controlling and / or automatically manipulating the guide member 1.

[0025] The guide member 1 shown in the accompanying drawings includes a housing 2 in which a main shaft 3 extends and is rotatably supported in a sleeve 4. The main shaft 3 extends through a first threaded hole 6 and a second threaded hole 7 of an adjusting wedge 5, which can be displaced within the housing 2 by rotation of the main shaft 3. The threads of the threaded holes 6 and 7 are kinematic threads with a complementary configuration to the threads of the main shaft 3. The adjusting wedge 5 abuts against the sliding ramp of a guide wedge 8, which is connected to a slider 9 or a sliding plate. The slider 9 is constructed as a wear member and, as shown in the accompanying drawings... Figure 2As can be seen, the guide member 1 is arranged parallel to the guide post 10 of the press (not shown) in its mounting position and at a given distance S from the guide post 10. The distance S of the slider 9 relative to the guide post 10 defines the guide clearance of the sliding guide.

[0026] The main shaft 3 has a connecting portion 11 at its end protruding from the housing 2 for a drive shaft of a mold or a motor (not shown). To adjust the clearance S, the main shaft 3 is rotated by hand or via the motor. This rotational movement causes the adjusting wedge 5 to move along or against the clearance. Figure 2 The arrow A shown slides in the direction shown, thereby guiding the wedge along or against the same direction. Figure 2 Slide in the direction of arrow B shown in the figure, and increase or decrease the distance S between guide post 10 and slider 9.

[0027] List of reference numerals

[0028] 1. Guiding component

[0029] 2. Shell

[0030] 3 Spindle

[0031] 4 sleeves

[0032] 5. Adjusting the wedge

[0033] 6 First threaded hole

[0034] 7 Second threaded hole

[0035] 8. Guide wedge

[0036] 9 sliders

[0037] 10 guide pillars

[0038] 11 Joint

[0039] A arrow

[0040] Arrow B

[0041] S represents the distance.

Claims

1. An adjustment system for adjusting the guide clearance of a sliding guide for a movable component of a press, the adjustment system having at least one adjustable guide member (1), the guide member comprising: At least one slider (9) that can be adjusted laterally to the direction of movement of the component to be guided in the press; At least one adjusting wedge (5); And at least one guide wedge (8) that works in conjunction with the adjusting wedge (5), the adjustment of the adjusting wedge and the guide wedge relative to each other causing the slider (9) to shift laterally in the direction of movement of the movable member, wherein the adjusting wedge (5) can be adjusted steplessly. Its features are, The adjusting wedge (5) can be adjusted by means of at least one screw drive, which includes at least one spindle (3) that works in conjunction with the moving thread of the adjusting wedge (5) and is provided with at least one measuring value transmitter that detects the guide gap of the sliding guide and outputs the guide gap to a control and / or adjustment device for automatic adjustment of the guide gap.

2. The regulating system according to claim 1, characterized in that, The main shaft (3), the adjusting wedge (5) and the guiding wedge (8) are arranged in a common housing (2) and form a structural unit with the slider (9).

3. The adjustment system according to claim 2, characterized in that, The main shaft (3) is rotatably supported in the sleeve (4) of the housing (2).

4. The regulating system according to any one of claims 1 to 3, characterized in that, The slider (9) can be replaced and fixed at the guide wedge (8).

5. The regulating system according to any one of claims 1 to 3, characterized in that, The movable components of the press have push rods or are partially constructed as push rods.

6. The regulating system according to any one of claims 1 to 3, characterized in that, The spindle (3) is driven by a servo motor.

7. A press having an adjustment system according to any one of claims 1 to 6.

8. The press according to claim 7, characterized in that, The press has at least one press frame and at least one traveling beam movable within the press frame and / or at least one receiver support, as well as a sliding guide for the traveling beam and / or the receiver support.

9. A method for adjusting the position of at least one slider of a sliding guide at a press having an adjustment system according to any one of claims 1 to 6, characterized in that, The guide clearance between the sliding surface of the movable component of the press and the slider is measured and compared with a given guide clearance (nominal value). The main shaft of the adjustment system is rotated until the actual guide clearance matches the given guide clearance.

10. The method according to claim 9, characterized in that, The spindle is automatically adjusted by a servo drive based on measurements detected by a measurement transmitter.

11. The method according to claim 9 or 10, characterized in that, The adjustment of the spindle is detected by means of at least one adjustment stroke transmitter, and the necessary replacement time of the slider is calculated from the completed adjustment stroke.

Images