DE102022128951B3 - Slide arrangement and machine tool with such a slide arrangement - Google Patents

Abstract

Slide arrangement, in particular cross slide arrangement (5), for a machine tool, comprising a cross slide which is displaceably accommodated on an inclined support (7) on at least one guide rail (8), the guide rail (8) being covered by means of a telescopically displaceable cover (15), wherein a downward-pointing first end (E1) of the cover (15) is firmly attached to an inclined support end of the inclined support (7). The slide arrangement is characterized in that an upward-pointing second end (E2) of the cover (15) is slidably guided in a slot (S) provided in the cross slide, with the downward-pointing first end (E1) of the cover (15) a closure plate (16) is attached, which is firmly connected to the inclined support (7), the closure plate (16) having an inclined surface (18) inclined towards the tool carrier element (13) on its upper edge section facing away from the inclined support (7). In addition, a machine tool with such a slide arrangement is proposed.

Description

The invention relates to a slide arrangement, in particular a cross slide arrangement, with the features of the preamble of claim 1, and to a machine tool with such a slide arrangement.

A generic carriage arrangement is from the US 7,412,759 B1 known. A cross slide is slidably arranged on a guide rail which has a telescopic cover.

The US 2018/0 169 811 A1 relates to a U-shaped dust cover for a machine tool, the ends of which are guided in grooves in a machine bed.

The EP 0 508 208 A1 discloses a slide arrangement in which a cross slide is slidably received on an inclined support. During machining, chips fall onto the inclined support and the guide rails provided there. From there, the chips go into a collecting container.

With the known carriage arrangement, it can happen that chips stick to the guide rails. This can hinder or block the sliding movement of the cross slide.

The object of the invention is to provide a slide arrangement in which the cross slide can always be moved safely and reliably. According to a further aim of the invention, the carriage arrangement should be designed to be as compact as possible. A further object of the invention is to provide a machine tool with a slide arrangement in which the slide can be moved as close as possible to a counter spindle or the like held on a main slide.

These tasks are solved by the features of claims 1 and 9. Appropriate embodiments of the invention result from the features of the dependent patent claims.

According to the invention, a slide arrangement, in particular a cross slide arrangement, is proposed for a machine tool, comprising
a cross slide mounted on an inclined support and displaceable on at least one guide rail,
wherein the guide rail is covered by a telescopically displaceable cover,
wherein a downward-pointing first end of the cover is firmly attached to an inclined support end of the inclined support,
wherein an upward-pointing second end of the cover is slidably guided in a slot provided in the cross slide, a closure plate being attached to the downward-pointing first end of the cover, which is firmly connected to the inclined support, the closure plate facing away from the inclined support Upper edge section has an inclined surface inclined towards the tool carrier element.

The terms “bottom” and “top” used here refer to the vertical direction of the carriage arrangement.

Providing the telescopic cover prevents chips from getting into the area of the at least one guide rail. This ensures that the cross slide can be moved smoothly and without hindrance. When the cross slide is moved relative to the inclined support, the telescopic cover is moved into the slot or pulled out of the slot. By providing the slot, the entry of chips into the area of the guide rails can be safely and reliably avoided. The cover is firmly attached at its downward-facing first end to an inclined support end of the inclined support. The guide rails end there. The carriage arrangement is designed to be compact due to the fixed attachment of the cover to the inclined support end. This in particular prevents the cover from protruding beyond the oblique support end and, in the case of assembly on a lathe, hindering the movement of a slide on which, for example, a counter spindle is accommodated. As a result, with such a combination of the slide arrangement with the lathe, the cross slide can be brought particularly close to, for example, a chuck of the counter spindle.

The cross slide is expediently guided on two parallel guide rails. This allows a particularly precise displacement movement of the cross slide to be achieved.

Advantageously, the slot in the cross slide is formed by a tool carrier element bridging the at least one guide rail and at least one guide element encompassed by the tool carrier element to form a slot. This means that the cover is guided in a slot which is formed by the guide element and the tool carrier element.

The tool carrier element is expediently guided on the two guide rails by means of two first linear guide carriages. Furthermore, the guide element is advantageously firmly connected to the tool carrier element and guided on the guide rails by means of two second linear guide carriages. This results in a stable and torsion-resistant arrangement.

The tool carrier element and the cover are advantageously designed in the cross section in the manner of a U-profile. The guide element can also be designed in a similar cross-section in the manner of a U-profile. However, it can also be that two guide elements are provided, which each form a slot with the tool carrier element for guiding the cover. In this case, the guide elements can be formed, for example, from step profiles. According to the invention, a closure plate is attached to the downward-pointing first end of the cover, which is firmly connected to the inclined support. The locking plate prevents chips from entering the area of the guide rails. Advantageously, the closure plate surrounds the at least one guide rail. If two guide rails are provided, the closure plate encompasses two guide rails.

The closure plate has an inclined surface inclined towards the tool carrier element on its upper edge section facing away from the inclined support. The inclined surface is expediently designed so that it is vertically oriented when assembled on a lathe. This can prevent the cover or the closure plate from getting into an area of a chuck of a counter spindle, for example. The cross slide can therefore be moved very close to the chuck.

According to a further embodiment, the slide arrangement for moving the cross slide includes a ball screw drive. The ball screw can have a motor-driven ball screw. A recirculating ball nut of the ball screw is expediently connected to the tool carrier element.

• eine Hauptspindel mit einer sich in z-Richtung erstreckenden Spindelachse,
• einen Schlitten zur Aufnahme einer Gegenspindel, welcher auf einem Bett in z-Richtung in einer horizontalen Bewegungsebene verfahrbar ist, und
• eine erfindungsgemäße Schlittenanordnung, insbesondere eine Planschlittenanordnung, wobei die Schlittenanordnung so angebracht ist, dass der Planschlitten schräg zur Bewegungsebene des Schlittens verfahrbar ist.

According to a further aspect of the invention, a machine tool is proposed, comprising:

• a main spindle with a spindle axis extending in the z direction,
• a carriage for receiving a counter spindle, which can be moved on a bed in the z direction in a horizontal plane of movement, and
• a slide arrangement according to the invention, in particular a cross slide arrangement, the slide arrangement being mounted in such a way that the cross slide can be moved obliquely to the plane of movement of the slide.

The proposed machine tool can be operated safely and reliably. The cross slide can in particular be guided relatively close to, for example, a chuck of a counter spindle.

The machine tool can preferably be designed as a lathe, surface grinding machine or cylindrical grinding machine.

• 1 eine perspektivische Ansicht einer erfindungsgemäßen, als Drehmaschine ausgebildeten Werkzeugmaschine,
• 2 eine Detailansicht von 1,
• 3 eine perspektivische Ansicht einer erfindungsgemäßen Schlittenanordnung gemäß 1,
• 4 eine Explosionsansicht der Schlittenanordnung von 3,
• 5 eine perspektivische, teilweise aufgebrochene Ansicht eines Planschlittens der erfindungsgemäßen Schlittenanordnung und einer Abdeckung,
• 6 eine Schnittansicht durch den Planschlitten von 5,
• 7 eine weitere, teilweise aufgebrochene Ansicht des Planschlittens samt Abdeckung gemäß 5 und
• 8 eine perspektivische, teilweise Schnittansicht des Planschlittens samt Abdeckung gemäß 5.

An exemplary embodiment of the invention is explained in more detail below with reference to the drawings. Show it:

• 1 a perspective view of a machine tool according to the invention designed as a lathe,
• 2 a detailed view of 1 ,
• 3 a perspective view of a carriage arrangement according to the invention 1 ,
• 4 an exploded view of the carriage assembly of 3 ,
• 5 a perspective, partially broken away view of a cross slide of the slide arrangement according to the invention and a cover,
• 6 a sectional view through the cross slide of 5 ,
• 7 Another, partially broken view of the cross slide including the cover 5 and
• 8th a perspective, partial sectional view of the cross slide including the cover 5 .

1 shows a machine tool designed as a lathe with a main spindle 1 with a spindle axis extending in the z direction. The reference number 2 denotes a counter spindle accommodated on a slide 3. The carriage 3 can be moved back and forth on a bed 4 in a horizontal plane of movement in the z direction. The reference number 5 denotes a slide arrangement designed as a cross slide arrangement, on which a tool turret 6 is mounted. 2 shows a detailed view of 1 .

3 shows the cross slide arrangement 5 in a perspective, partially broken away view including tool turret 6. An inclined support 7 can be seen, on which two parallel guide rails 8 are attached. The reference number 9 denotes a drive device with which a ball spindle (not visible here) is driven.

4 shows an exploded view of the cross slide arrangement according to 3 , whereby the tool turret 6 is omitted. First linear guide carriages 10 and second linear guide carriages 11 are accommodated on the guide rails 8. The reference number 12 denotes a recirculating ball nut, which is driven by a ball spindle (not visible here). The ball nut 12 and the ball spindle form a ball drive.

A tool carrier element 13 is designed in the manner of a first U-profile. The tool carrier element 13 surrounds a guide element 14, which is also designed in the manner of a U-profile. A cover 15 is also designed in the manner of a U-profile. The reference numeral 16 denotes a closure plate, which can be connected to both the cover 15 and to brackets 17, which are mounted on the inclined support 7 at a lower inclined support end. A downward-pointing first end E1 of the cover 15 is firmly connected to the inclined support 7, the upward-pointing second end E2 is slidably guided in a slot S, which is in 5 is shown.

5 shows the cross slide arrangement 5 in a partially broken view. The slot S between the tool carrier element 13 and the guide element 14, in which the cover 15 is slidably guided, can be seen.

The 6 and 7 show further views of the cross slide, whereby 6 a sectioned view and 7 is a perspective view.

8th shows that in the exemplary embodiment shown, the guide element 14 is designed in the manner of a U-profile. Instead, two step profiles can also be provided.

The closure plate 16 has an inclined surface 18, which is inclined towards the tool carrier element 13 at its upper edge facing away from the inclined support 7.

Like in particular 2 can be seen, the inclined surface 18 is approximately vertical in the assembled state. As a result, a collision, for example with a chuck 19 of the counter spindle 2 and/or the carriage 3, is avoided.

Reference symbol list

1

main spindle

2

Counter spindle

3

Sleds

4

Bed

5

Cross slide arrangement

6

Tool turret

7

Oblique support

8th

Guide rail

9

Drive device

10

first linear guide carriage

11

second linear guide carriage

12

Ball recirculating nut

13

Tool carrier element

14

Leadership element

15

cover

16

Closure plate

17

angle

18

inclined surface

19

chuck

E1

first ending

E2

second ending

S

slot

Claims (10)

Slide arrangement, in particular cross slide arrangement (5), for a machine tool, comprising a cross slide which is displaceably accommodated on an inclined support (7) on at least one guide rail (8), the guide rail (8) being covered by means of a telescopically displaceable cover (15), wherein a downward-pointing first end (E1) of the cover (15) is firmly attached to an inclined support end of the inclined support (7), characterized in that an upward-pointing second end (E2) of the cover (15) is displaceable in a slot provided in the cross slide (S) is guided, with a closure plate (16) being attached to the downward-pointing first end (E1) of the cover (15), which is firmly connected to the inclined support (7), the closure plate (16) being on its side The upper edge section facing away from the inclined support (7) has an inclined surface (18) inclined towards the tool carrier element (13). Carriage arrangement according to Claim 1 , whereby the cross slide is guided on two parallel guide rails (8). Carriage arrangement according to Claim 2 , wherein the slot (S) in the cross slide is formed by a tool carrier element (13) bridging the at least one guide rail (8) and at least one guide element (14) encompassed by the tool carrier element (13) to form the slot (S). Carriage arrangement according to Claim 3 , wherein the tool carrier element (13) is guided on the two guide rails (8) by means of two first linear guide carriages (10). Carriage arrangement according to Claim 3 or 4 , wherein the guide element (14) is firmly connected to the tool carrier element (13) and is guided on the guide rails (8) by means of two second linear guide carriages (11). Carriage arrangement according to one of the Claims 3 until 5 , wherein the tool carrier element (13) and the cover (15) are designed in cross section in the manner of a U-profile. Carriage arrangement according to one of the preceding claims, wherein the closure plate (16) surrounds the at least one guide rail (8). Slide arrangement according to one of the preceding claims, wherein a ball screw drive is provided for moving the cross slide. Machine tool, comprehensive a main spindle (1) with a spindle axis extending in the z direction, a carriage (3) for receiving a counter spindle (2), which can be moved on a bed (4) in the z direction in a horizontal plane of movement, and a cross slide arrangement (5) according to one of the preceding claims, wherein the cross slide arrangement (5) is attached such that the cross slide can be moved obliquely to the plane of movement of the slide (3). machine tool Claim 9 , which is designed as a lathe, surface grinder or cylindrical grinder.

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