DE102017110931A1 - machining center - Google Patents

Abstract

Described is a numerically controlled machining center for machining workpieces made of wood or wood comparable material, a cross member is movable on a first working axis, a working unit is movable on the cross member, a tool magazine mounted on the cross member and with a parallel to the cross member arranged row with tool holders, a protective cover is movably connected to the first working axis and fixed to the cross member and the tool magazine and the work unit and the tool magazine encloses to protect the operating personnel from possible shocks.

Description

Background of the invention

The invention relates to a machining center, in particular a (numerically controlled) machining center, which is equipped with at least one tool magazine.

In particular, but not exclusively, the subject machining center can be used for machining workpieces made of wood and / or wood-based materials and / or of wood-like material.

The prior art includes various examples of machining centers with at least one tool magazine. Some of these examples are in the published patents EP 2371481 A1 and DE 10 2007 004 633 A1 shown.

The machining centers of the prior art are in various ways in need of improvement. First, it is desirable to reduce tool change times. Secondly, it is desirable to reduce the footprint of the machining center as a whole. In addition, the safety level of the machining center must be ensured in any case, in order to keep the risk of danger to the responsible operating personnel of the machining center acceptably low.

Summary of the invention

One purpose of the invention is to produce a machining center capable of overcoming one or more of the above limitations and disadvantages of the prior art.

One advantage is that a (numerically controlled) machining center is provided which has at least one tool magazine in which the time required for the tool change is relatively reduced.

One advantage is that a machining center is created which has at least one tool magazine and relatively small dimensions.

One advantage is that a high level of safety is provided so as to minimize the risk of endangerment to the operator of the machining center.

One advantage is that a structurally simple and economical machining center (with tool magazine) is made available.

These purposes and advantages and others are achieved with the machining center according to one or more of the claims listed below.

In one example, a machining center includes at least one movable support (cross member) on a first working axis, at least one working unit movably mounted on the support on a second working axis, a tool magazine movably mounted with the support on the first axis, protection means are movably mounted together with the holder and the tool magazine on the first working axis and run at least partially around both the working unit and the tool magazine to ensure the safety of the operator and to protect it against shocks.

In one example, a machining center comprises at least one cross member movably mounted on a first working axis, at least one tool unit movably mounted on the cross member, at least one tool magazine movably mounted with the cross member on the first working axis, at least one row of tool holders mounted parallel to the cross member is.

Brief description of the drawings

The invention may be better understood with reference to the accompanying drawings which show a non-limiting example of application.

shows a plan view of an example of a machining center with tool magazine according to the present invention.

shows a side view of in vertical view from below.

shows an elevation of the tool magazine of the machining center with the tool magazine in retracted rest position (distal).

shows the view with tool magazine in advanced position for tool change (proximal).

shows the tool magazine in position from a different perspective.

Detailed description

With reference to the above illustrations is a total of 1 a machining center specified, in particular for machining material (milling, drilling, flaring, etc.) such as for machining workpieces made of wood, wood-based materials or materials comparable to wood. The machining center 1 may include, for example, a numerically controlled machining center. The machining center 1 may in particular comprise three or more working axes.

The machining center may in particular at least one base 2 comprising, as in this example, holding means to hold at least one workpiece to be machined. In particular, these holding means may comprise at least one holding surface, as in this special case for example a horizontal holding surface. The holding means may in particular one or more support rods 3 include, for example, with one or more fasteners 4 are equipped for the workpiece.

The machining center 1 can in particular at least one movably mounted on a first axis X of the machining center cross member 5 include. The crossbeam 5 may be part of a movable gantry which is operatively connected to the support means for the workpiece (s) to be machined. The crossbeam 5 may be at least partially disposed over the support surface as in this example. The crossbeam 2 In particular, it may comprise an elongated element elongated in the direction of a second axis Y of the machining center. The second axis Y may, as in this example, be perpendicular to the first axis X. The means for moving the cross member 2 may in particular be means for moving the known type and will therefore not be described in more detail.

In particular, the machining center can have at least one work unit 6 include, located on the cross member 5 can be located and moved. The work unit 6 For example, it may be movable on the said second axis Y of the machining center. The work unit 6 In particular, it may comprise a tool carrier head (with interchangeable tool) that can perform various machining operations such as milling, drilling, flanging etc.

The machining center 1 In particular, at least one tool magazine 7 include. The tool magazine 7 In particular, it may be movable on a direction parallel to the first axis X of the machining center. The tool magazine 7 can be moved in particular with a first (rectilinear) movement, which together with the (linear) movement of the cross member 5 can be done on the first axis X. In particular, the tool magazine 7 as in the present case in conjunction with the cross member 5 be mobile. The tool magazine 7 may be at least partially mounted over the support surface for the workpiece.

The machining center 1 in particular, at least one protective cover 8th (for the safety of the operating personnel), in particular for receiving (at least partially, for example laterally, on all sides or at least a part of the sides) of the working unit 6 is designed over a part or the entire possible run length in the direction of the second axis Y. The protective cover 8th can in particular together with the cross member 5 be movable, for example in the direction of the first axis X. The protective cover 8th can accommodate the entire tool magazine 7 or part of it.

The protective cover 8th may in particular comprise at least one protective housing, for example made of plastic, in particular of a material which is used for the production of protective devices in machining centers of the known type. The protective cover 8th is so constructed and attached that it has at least a part (at least laterally) of both the work unit 6 in their movement on the second axis Y as well as the tool magazine 7 , which is together with the cross member 5 can move, envelop and / or enclose to ensure the safety and integrity of the operating center operator. The protective cover 8th may be at least partially mounted over the support surface of the workpiece.

The tool magazine 7 In particular, it may comprise at least a part of tool holders which are in a cross member 5 are mounted opposite row (with the opposite in the direction of the first axis X is meant). This row of tool holders can, for example, parallel to the longitudinal direction of the cross member 5 lie. For example, the row of tool holders may be parallel to the second axis Y of the machining center.

The tool magazine 7 can, as in this example, at least one with respect to the unit of work 6 movable part with the possibility of a second (separate from the first, above-mentioned movement) movement, with which it can take at least one distal (retracted) rest position in which it is relatively far from the working unit 6 located, and at least one proximal (advanced) position for the tool change, in which it is relatively close to the working unit 6 located. The second movement of the moving part of the magazine 7 may in particular comprise at least one rectilinear movement, for example a (vertical) transverse movement to the longitudinal direction of said row with tool holders.

The moving part of the magazine 7 can in particular with guidance means 9 be connected, for example, with linear guide means, in particular with (linear) Gleitführungsmitteln. The guiding means 9 can be mounted on a holder (in particular in the form of a plate as in the present example), which is the tool magazine 7 carries and (mechanically, for example, firmly connected, in particular with web-shaped means 10 ) with the cross member 5 can be connected.

The moving part of the magazine 7 in particular via the control of (from the engine means of the cross member 5 separate and / or independent) motor means between a distal and a proximal position. The motor means of the movable part of the magazine may in particular comprise one or more linear drives. These motor means may include motor means with any type of drives, for example, electric, pneumatic, hydraulic, etc. These motor means can together (firmly connected) with a first movement of the cross member 5 be movable in a direction parallel to the first axis X extending direction of movement. These movements, the first and the second, are separate and independent (the first movement comprising the working movement along the first axis X of the machining center, the second movement the relative movement of the magazine 7 concerning the working group 5 between the rest position and the position for the tool change), in particular may be parallel to each other.

As I said, the protective and security cover 8th together with the cross member 5 (First working movement) along the first axis X be movable, mainly due to the fact that the protective cover 8th on the cross member 5 is attached. The tool magazine 7 can together (firmly connected) with the cross member 5 be mobile, in particular due to the fact that the tool magazine 7 on the cross member 5 attached or firmly connected to it. It is possible, as in this example, the web-shaped means 10 , For example, at least one support arm, to be arranged so that they protrude projecting from the cross member, with one end on the cross member 5 is attached and the opposite end of the tool magazine 7 is appropriate.

In another example, not shown, the tool magazine 7 together with the cross member 5 be mobile due to the fact that the tool magazine 7 is equipped with (own and separate) motor means configured to hold the tool magazine 7 together with the cross member 5 move along the first axis X, wherein the motor means of the tool magazine 7 and the engine means of the cross member 5 controlled by (programmable electronic) control means which move the two elements coordinated (for example, simultaneously and at the same speed).

The protective cover 8th can, as in this example, a first part 8 and a second part 8b include, which are both (fixed) connected to each other. The first part 8 may run in the direction of the second axis Y to the working unit 6 at least partially or completely to enclose in their movement along the second axis Y. The second part 8b like in this example from the first part 8 protrude, especially in the direction of the first axis X to the tool magazine 7 sure to enclose. The second part 8b may, as in this example, consist of an extension consisting of an (upper) region of the first part 8 emerges. The first part 8 may comprise, as in this example, wall-like means which are open at the bottom and the working unit 6 and / or the cross member 5 surround. The second part 8b may, as in this example, comprise wall-like means located on one side of the wall-like means of the first part 8 emerge and dome-shaped.

The work unit 6 For example, it could have shuttle facilities (of the known type, for example) that are configured for tool change. The tool change can be carried out in particular when the movable part of the tool magazine 7 is in the proximal (advanced) position for tool change. When the work unit 6 machined the workpiece, the moving part of the tool magazine 7 are in the distal (retracted) rest position.

In this example, the tool magazine includes 7 a single (fixed, ie non-displaceable) row of tool holders. It is possible in other examples, not shown, to provide a tool magazine of a different kind, for example a magazine with several rows of tool holders (for example one row above the other) or a movable magazine in which the various tool holders are displaceable (for example, along an endlessly formed Sliding ring) or a magazine with at least one rotary carousel etc.

The arrangement of at least one tool magazine 7 , which together (in solid compound or coordinated) with the support means (cross member 5 ) of the work unit 6 is movable, it allows to reduce tool change times, in particular by reducing the distance between the unit of work 6 and magazine 7 , In addition, the arrangement of the magazine allows 7 inside a protective cover 8th , in particular a protective cover 8th that includes at least part of the unit of work 6 safely protects, a machining center with relatively small dimensions, which can ensure the integrity of the operator.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2371481 A1 [0003]
• DE 102007004633 A1 [0003]

Claims (11)

Machining center comprising: - at least one cross member movable on a first axis (X) ( 5 ); - at least one on this cross member ( 5 ) movable work unit ( 6 ); At least one tool magazine movable in a direction parallel to this first axis (X) ( 7 ); - protective agent ( 8th ), which are movable in that direction and arranged so as to at least partially protect the working unit for the safety of the operator responsible for the machining center ( 6 ) and the tool magazine ( 7 ) enclose; Machining center according to claim 1, wherein the tool magazine ( 7 ) comprises at least one part with tool holders, which in a cross member ( 5 ) opposite and parallel to a longitudinal side of the cross member ( 5 ) extending row, wherein the tool magazine ( 7 ) with a first movement together with the cross member ( 5 ) is movable in the said direction and at least one with respect to the working unit ( 6 ) with a second movement movable part, wherein it can assume at least one distal rest position, in which it from the working unit ( 6 ), and can assume at least one proximal position for the tool change, at which the working unit ( 6 ) is closer. Machining center according to claim 1 or 2, wherein the protective means ( 8th ) together with the cross member ( 5 ) are movable on the first axis (X). Machining center according to any one of the preceding claims, wherein the tool magazine ( 7 ) comprises at least one part with tool holders which are linearly parallel to the cross member ( 5 ) extending row are arranged. Machining center according to any one of the preceding claims, wherein at least a part of the tool magazine ( 7 ) in the direction of the first axis (X) relative to the cross member ( 5 ) is arranged. Machining center according to any one of the preceding claims, wherein the tool magazine ( 7 ) together with the cross member ( 5 ) is movable. Machining center according to claim 6, wherein the tool magazine ( 7 ) fixed to the cross member ( 5 ) connected is. Machining center according to claim 6, in which the tool magazine is equipped with motor means which are separated from the motor means of the crossmember ( 5 ) are separated and configured so that they the tool magazine together with the cross member ( 5 ) on the first axis (X). Machining center according to any one of the preceding claims, wherein the tool magazine ( 7 ) at least one relating to the work unit ( 6 ) comprises a movable part and can assume at least one distal rest position at which it is further away from the working unit ( 6 ), and can assume at least one proximal position for the tool change, where it is closer to the working unit ( 6 ) in order to allow the tool change, wherein the movable part between the distal and the proximal position can be moved by the control of motor means, which in turn together with the cross member ( 5 ) can be moved on the first axis (X). Machining center according to any one of the preceding claims, in which the protective means comprise at least one shell ( 8th ) comprising at least two fixed parts ( 8 ; 8b ), a first part ( 8 ) in the direction of the cross member ( 5 ) to the work unit ( 6 ) at least partially or entirely in their movement on the cross member ( 5 ) and a second part ( 8b ) protrudes from this first part in the direction of the first axis (X) to the tool magazine ( 8th ) at least partially enclose. Machining center according to any one of the preceding claims, comprising at least one base ( 2 ), which comprises a horizontal support surface for supporting at least one workpiece to be machined, wherein the cross member ( 5 ) and / or the work unit ( 6 ) and / or the tool magazine ( 7 ) and / or the protective means ( 8th ) are mounted at least partially over the support surface.

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