CN113458810A

CN113458810A - Gantry machine tool

Info

Publication number: CN113458810A
Application number: CN202111029309.XA
Authority: CN
Inventors: 喻鹏; 郭志超; 秦广财
Original assignee: Shenyang Maka Machine Tool Co
Current assignee: Shenyang Maka Machine Tool Co
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-10-01

Abstract

The invention relates to the technical field of machine tools, in particular to a gantry machine tool. A gantry machine tool comprises a ram, a mounting frame, a cross beam, a support frame, an X-axis sliding mechanism and a Z-axis sliding mechanism, wherein a machining head is rotatably connected to the bottom end of the ram; the Z-axis sliding mechanism comprises a Z-axis driving motor, a Z-axis lead screw and a Z-axis sliding block sleeved on the Z-axis lead screw, the Z-axis driving motor drives the Z-axis lead screw to rotate, and the ram moves linearly along the Z-axis direction of the mounting rack. Therefore, the gantry machine tool enables the X-axis sliding mechanism to be stressed uniformly, the service life of the X-axis sliding mechanism is prolonged, and the machining precision of the machining head on the ram is improved.

Description

Gantry machine tool

Technical Field

The invention relates to the technical field of machine tools, in particular to a gantry machine tool.

Background

Gantry type lathe, present most structure are that the mount is on the crossbeam along the guide rail of one side on the crossbeam do the X axle motion, and the ram is installed on the mount, and the ram is vertical motion along the Z axle guide rail on the mount, and the accessory head that is used for processing is installed to the ram bottom.

Due to the limitation of the structure, the ram mounting frame is prone to forward tilting on the cross beam, the forward tilting phenomenon causes the Z axis of the machining head on the machine tool to be not perpendicular to the X axis, machining precision is reduced, and the X axis lead screw and the sliding block are prone to damage due to uneven stress. The existing means for solving the problem that the ram and the mounting rack tilt forward mostly adopt the guide rail specifications of the X axis and the Z axis, and the perpendicularity of the X axis and the Z axis is adjusted through adjustment between the mounting rack and the cross beam.

However, when the ram and the mounting rack are too heavy, the phenomena that the Z axis of the machining head on the machine tool is not perpendicular to the X axis, and the X-axis lead screw and the slide block are stressed unevenly and are easily damaged cannot be solved.

Disclosure of Invention

Technical problem to be solved

In view of the above disadvantages and shortcomings of the prior art, the present invention provides a gantry machine tool, which solves the technical problems of uneven stress, easy damage and reduced machining precision of an X-axis lead screw and an X-axis slide block.

(II) technical scheme

In order to achieve the purpose, the invention adopts the main technical scheme that:

the embodiment of the invention provides a gantry machine tool which comprises a ram, an installation frame, a cross beam, a support frame, an X-axis sliding mechanism and a Z-axis sliding mechanism, wherein a machining head is rotatably connected to the bottom end of the ram; the X-axis sliding mechanism comprises an X-axis driving motor, an X-axis lead screw and an X-axis sliding block sleeved on the X-axis lead screw, the X-axis driving motor is connected with the X-axis lead screw and drives the X-axis lead screw to rotate, the X-axis lead screw is arranged on the cross beam, one end of the X-axis sliding block is connected with one side of the mounting rack, and the X-axis sliding block drives the mounting rack to do linear motion along the X-axis direction of the cross beam; the supporting frame is arranged on the cross beam and arranged along the X-axis direction of the cross beam, the supporting frame is used for supporting the mounting frame, and the supporting frame is connected with the other side of the mounting frame in a sliding manner; z axle slide mechanism includes Z axle driving motor, Z axle lead screw and overlaps the Z axle slider of establishing on Z axle lead screw, and Z axle driving motor is connected and drives Z axle lead screw rotation with Z axle lead screw, and Z axle lead screw sets up on the mounting bracket, and one side and the ram of Z axle slider are connected, and Z axle slider drives the ram and is linear motion along the Z axle direction of mounting bracket.

Preferably, the device further comprises a supporting sliding assembly, wherein the supporting sliding assembly comprises a supporting guide rail and a supporting sliding block connected with the supporting guide rail in a sliding manner; the support frame comprises a cross rod and two connecting rods, the two connecting rods are respectively arranged on two sides of the cross rod, one end of each connecting rod is connected with the cross rod, and the other end of each connecting rod is connected with the side wall of the cross beam; the support guide rail is arranged on the cross rod, and the support sliding block is arranged on the mounting frame.

Preferably, the device further comprises a first connecting seat; the supporting slide block is connected with the mounting frame through a first connecting seat.

Preferably, the first connecting seat comprises a connecting arm and a connecting block; the first end and the mounting bracket of linking arm are connected, and the second end and the connecting block of linking arm are connected, and the bottom and the supporting slide block of connecting block are connected, and the width of linking arm is held from first end to the second and is increaseed gradually.

Preferably, the device further comprises an auxiliary support component; the auxiliary supporting assembly comprises an auxiliary supporting guide rail arranged at the top end of the cross beam and an auxiliary supporting sliding block arranged on the mounting frame, and the auxiliary supporting sliding block is connected with the auxiliary supporting guide rail in a sliding mode.

Preferably, the device further comprises a second connecting seat; the mounting frame is connected with the auxiliary supporting slide block through a second connecting seat; the second connecting seat has the same structure as the first connecting seat.

Preferably, the horizontal section of the mounting frame is of a concave structure, and part of the ram is embedded into the groove of the mounting frame; the Z-axis sliding mechanism also comprises two groups of Z-axis supporting assemblies which are respectively arranged on two side walls of the ram; z axle support subassembly includes Z axle support slide rail and supports slide block with Z axle support slide rail sliding connection's Z axle, and Z axle support slide rail sets up the lateral wall at the ram, and Z axle support slide block sets up inside the both sides wall of mounting bracket.

Preferably, the mount includes a mount body and a plurality of reinforcing plates; a plurality of reinforcing plates are arranged on two side walls of the mounting frame body.

(III) advantageous effects

The invention has the beneficial effects that:

according to the gantry machine tool, the support frame is arranged and is arranged on the cross beam, so that the occupied space of the machine tool is saved, the ram which is connected with the mounting frame in a sliding mode and the working head on the ram are too heavy, one side of the mounting frame is connected with the cross beam through the X-axis sliding mechanism, and therefore the forward tilting phenomenon is prone to occurring.

Drawings

FIG. 1 is a schematic structural view of a gantry machine tool at a first viewing angle according to the present invention;

FIG. 2 is a schematic structural diagram of a gantry machine tool at a second viewing angle according to the present invention;

FIG. 3 is a schematic structural view of the mounting bracket of FIG. 1;

FIG. 4 is a rear view of FIG. 3;

fig. 5 is a schematic structural diagram of the first connecting seat in fig. 1.

[ description of reference ]

1: a ram;

2: a mounting frame; 21: a mounting bracket body; 22: a reinforcing plate;

3: a cross beam;

4: a support frame; 41: a cross bar; 42: a connecting rod;

51: an X-axis drive motor; 52: an X-axis lead screw; 53: an X-axis slider; 54: the X shaft supports a sliding rail; 55: the X shaft supports a sliding block;

61: a Z-axis drive motor; 62: a Z-axis lead screw; 63: a Z-axis slide block; 64: the Z shaft supports a sliding rail; 65: a Z shaft supports a sliding block;

7: supporting the sliding assembly; 71: supporting the guide rail; 72: a support slide block;

8: a first connecting seat; 81: a connecting arm; 82: connecting blocks;

9: an auxiliary support assembly; 91: an auxiliary support rail; 92: and the auxiliary supporting sliding block.

Detailed Description

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1-2, a gantry machine tool comprises a ram 1, a mounting frame 2, a cross beam 3, a support frame 4, an X-axis sliding mechanism and a Z-axis sliding mechanism, wherein a processing head is rotatably connected to the bottom end of the ram 1. Wherein, X axle slide mechanism includes X axle driving motor 51, X axle lead screw 52 and overlaps the X axle slider 53 of establishing on X axle lead screw 52, and X axle driving motor 51 drive X axle lead screw 52 rotates, and X axle lead screw 52 sets up on crossbeam 3, and the one end and the mounting bracket 2 one side of X axle slider 53 are connected to when X axle driving motor 51 drive X axle lead screw 52 rotated, X axle slider 53 drove mounting bracket 2 and is linear motion along the X axle direction of crossbeam 3.

Wherein, support frame 4 is installed on crossbeam 3, and set up along the X axle direction of crossbeam 3, support frame 4 is used for supporting mounting bracket 2, and with the opposite side sliding connection of mounting bracket 2, Z axle slide mechanism includes Z axle driving motor 61, Z axle lead screw 62 and cover establish the Z axle slider 63 on Z axle lead screw 62, Z axle driving motor 61 drives Z axle lead screw 62 and rotates, Z axle lead screw 62 sets up on mounting bracket 2, one side and the ram 1 of Z axle slider 63 are connected, thereby when Z axle driving motor 61 drives Z axle lead screw 62 and rotates, Z axle slider 63 drives ram 1 and is linear motion along the Z axle direction of mounting bracket 2. In the embodiment, the support frame 4 is arranged and the support frame 4 is arranged on the cross beam, so that the occupied space of the machine tool is saved. And because the support frame 4 is arranged along the X-axis direction of the cross beam 3, namely the support frame 4 and the cross beam 3 are respectively arranged on two sides of the mounting frame 2, the two sides of the mounting frame 2 are uniformly stressed, the phenomenon that the mounting frame 2 inclines to one side due to uneven stress of the X-axis lead screw 52 and the X-axis slide block 53 on the cross beam 3 is avoided, and the processing precision of the processing head at the bottom end of the ram 1 connected with the mounting frame 2 in a sliding manner is improved.

As shown in fig. 1, the X-axis sliding mechanism further includes two sets of X-axis supporting assemblies, the two sets of X-axis supporting assemblies are respectively disposed on the upper and lower sides of the X-axis lead screw 52, each set of X-axis supporting assemblies includes an X-axis supporting slide rail 54 and an X-axis supporting slide block 55, the X-axis supporting slide block 55 is slidably connected to the X-axis supporting slide rail 54, the X-axis supporting slide rail 54 is disposed on the cross beam 3, the X-axis supporting slide block 55 is connected to the mounting bracket 2, and by disposing the X-axis supporting slide rail 54 and the X-axis supporting slide block 55, the stress on the X-axis lead screw 52 and the X-axis slide block 53 is reduced, so that the mounting bracket 2 can maintain the horizontal linear motion and further ensure the machining accuracy of the machine tool.

As shown in fig. 1, this embodiment further includes a supporting sliding assembly 7, the supporting sliding assembly 7 includes a supporting guide rail 71 and a supporting slider 72 slidably connected with the supporting guide rail 71, the supporting frame 4 includes a cross bar 41 and two connecting rods 42, the two connecting rods 42 are respectively disposed on two sides of the cross bar 41, one end of the connecting rod 42 is connected with the cross bar 41, the other end of the connecting rod 42 is connected with the side wall of the cross beam 3, the cross bar 41 is disposed parallel to the cross beam 3, the supporting guide rail 71 is disposed on the cross bar 41, the supporting slider 72 is disposed on the mounting frame 2, when the mounting frame 2 moves along the X axis of the cross bar 3 under the driving of the X axis slider 53, the supporting slider 72 on the other side of the mounting frame 2 moves along the cross bar 41, so that the cross bar 41 and the X axis lead screw 52 simultaneously support the mounting frame 2, and further balance the stress of the mounting frame 2. Wherein, because the support frame 4 is in a frame form, the movement of the X axis and the Z axis of the ram 1 can not be influenced. In the process of practical application, two supporting sliding blocks 72 are arranged on the mounting frame 2, and the two supporting sliding blocks 72 are respectively arranged at two ends of one side surface of the mounting frame 2, so that the mounting frame 2 is stressed uniformly, and meanwhile, the working position of the ram 1 is also avoided.

Referring to fig. 5, the present embodiment further includes a first connecting seat 8, and the supporting slider is connected to the mounting frame 2 through the first connecting seat 8. Specifically, first connecting seat 8 includes linking arm 81 and connecting block 82, and the first end and the mounting bracket 2 of linking arm 81 are connected, and the second end and the connecting block 82 of linking arm 81 are connected, and the bottom and the support slider of connecting block 82 are connected, and the width of linking arm 81 is held from first end to the second and is crescent, and then has strengthened the intensity of linking arm 81. In the process of practical application, the middle of the first connecting seat 8 is hollowed out, so that the weight of the first connecting seat 8 is reduced, and the weight of the mounting frame 2 is reduced to reduce the stress of the X-axis lead screw 52 and the X-axis slide block 53.

As shown in fig. 1-2, the present embodiment further includes an auxiliary support assembly 9 and a second connecting seat, the auxiliary support assembly 9 includes an auxiliary support rail 91 disposed at the top end of the cross beam 3 and an auxiliary support slider 92 disposed on the mounting bracket 2, the mounting bracket 2 is connected to the auxiliary support slider 92 through the second connecting seat, and the auxiliary support slider 92 is slidably connected to the auxiliary support rail 91. Through setting up supplementary supporting component 9 and then alleviateed the atress of X axle lead screw 52 and X axle slider 53, make mounting bracket 2 can keep the straight line operation of horizontal to guarantee the machining precision of lathe.

The second connecting seat is the same as the first connecting seat 8 in structure, and the second connecting seat comprises a second connecting arm and a second connecting block, the first end of the second connecting arm is connected with the mounting frame 2, the second end of the second connecting arm is connected with the second connecting block, the bottom end of the second connecting block is connected with the auxiliary supporting slider 92, the width of the second connecting arm is gradually increased from the first end to the second end, and then the strength of the second connecting arm is enhanced. In the process of practical application, thereby the middle part fretwork of second connecting seat has alleviateed the weight of second connecting seat, and then the weight that alleviates mounting bracket 2 alleviates the atress of X axle lead screw 52 and X axle slider 53.

As shown in fig. 3, the horizontal section of the mounting bracket 2 is a concave structure, and a part of the ram 1 is embedded into a groove of the mounting bracket 2. Wherein, in order to guarantee the ram 1 along the steady motion of Z axle, Z axle slide mechanism still includes two sets of Z axle support subassemblies, and two sets of Z axle support subassemblies set up the both sides wall at ram 1 respectively, and Z axle support subassembly includes Z axle support slide rail 64 and supports slider 65 with Z axle support slide rail 64 sliding connection's Z axle, and Z axle support slide rail 64 sets up the lateral wall at ram 1, and Z axle support slider 65 sets up inside the both sides wall of mounting bracket 2.

As shown in fig. 3, the mounting bracket 2 includes a mounting bracket body 21 and a plurality of reinforcing plates 22, and the strength of the mounting bracket 2 is enhanced by providing the reinforcing plates 22, specifically, the plurality of reinforcing plates 22 are provided on both side walls of the mounting bracket body 21, and the reinforcing plates 22 are provided along the vertical direction of the mounting bracket body 21.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.

Claims

1. A gantry machine tool is characterized by comprising a ram (1), a mounting frame (2), a cross beam (3), a support frame (4), an X-axis sliding mechanism and a Z-axis sliding mechanism, wherein a machining head is rotatably connected to the bottom end of the ram (1);

the X-axis sliding mechanism comprises an X-axis driving motor (51), an X-axis lead screw (52) and an X-axis sliding block (53) sleeved on the X-axis lead screw (52), the X-axis driving motor (51) is connected with the X-axis lead screw (52) and drives the X-axis lead screw (52) to rotate, the X-axis lead screw (52) is arranged on the cross beam (3), one end of the X-axis sliding block (53) is connected with one side of the mounting rack (2), and the X-axis sliding block (53) drives the mounting rack (2) to do linear motion along the X-axis direction of the cross beam (3);

the supporting frame (4) is mounted on the cross beam (3) and arranged along the X-axis direction of the cross beam (3), the supporting frame (4) is used for supporting the mounting rack (2), and the supporting frame (4) is connected with the other side of the mounting rack (2) in a sliding mode;

z axle slide mechanism includes Z axle driving motor (61), Z axle lead screw (62) and cover and establishes Z axle slider (63) on Z axle lead screw (62), Z axle driving motor (61) with Z axle lead screw (62) are connected and are driven Z axle lead screw (62) rotate, Z axle lead screw (62) set up on mounting bracket (2), one side of Z axle slider (63) with ram (1) is connected, Z axle slider (63) drive ram (1) are followed linear motion is to the Z axle direction of mounting bracket (2).

2. Gantry machine according to claim 1, characterized in that:

the device is characterized by further comprising a supporting sliding assembly (7), wherein the supporting sliding assembly (7) comprises a supporting guide rail (71) and a supporting sliding block (72) which is connected with the supporting guide rail (71) in a sliding manner;

the supporting frame (4) comprises a cross rod (41) and two connecting rods (42), the two connecting rods (42) are respectively arranged on two sides of the cross rod (41), one end of each connecting rod (42) is connected with the cross rod (41), and the other end of each connecting rod (42) is connected with the side wall of the cross beam (3);

the supporting guide rail (71) is arranged on the cross rod (41), and the supporting sliding block (72) is arranged on the mounting rack (2).

3. Gantry machine according to claim 2, characterized in that:

also comprises a first connecting seat (8);

the supporting sliding block is connected with the mounting frame (2) through the first connecting seat (8).

4. A gantry machine according to claim 3, characterized in that:

the first connecting seat (8) comprises a connecting arm (81) and a connecting block (82);

the first end of linking arm (81) with mounting bracket (2) are connected, the second end of linking arm (81) with connecting block (82) are connected, the bottom of connecting block (82) with the support slider is connected, the width of linking arm (81) is followed first end to second end crescent.

5. Gantry machine according to claim 4, characterized in that:

also comprises an auxiliary supporting component (9);

the auxiliary supporting assembly (9) comprises an auxiliary supporting guide rail (91) arranged at the top end of the cross beam (3) and an auxiliary supporting sliding block (92) arranged on the mounting rack (2), and the auxiliary supporting sliding block (92) is in sliding connection with the auxiliary supporting guide rail (91).

6. Gantry machine according to claim 5, characterized in that:

the device also comprises a second connecting seat;

the mounting rack (2) is connected with the auxiliary support sliding block (92) through the second connecting seat;

the second connecting seat and the first connecting seat (8) are identical in structure.

7. Gantry machine according to claim 1, characterized in that:

the horizontal section of the mounting rack (2) is of a concave structure, and part of the ram (1) is embedded into a groove of the mounting rack (2);

the Z-axis sliding mechanism further comprises two groups of Z-axis supporting assemblies, and the two groups of Z-axis supporting assemblies are respectively arranged on two side walls of the ram (1);

the Z-axis support assembly comprises a Z-axis support sliding rail (64) and a Z-axis support sliding block (65) connected with the Z-axis support sliding rail (64) in a sliding mode, the Z-axis support sliding rail (64) is arranged on the side wall of the ram (1), and the Z-axis support sliding block (65) is arranged inside the two side walls of the mounting rack (2).

8. Gantry machine according to claim 7, characterized in that:

the mounting bracket (2) comprises a mounting bracket body (21) and a plurality of reinforcing plates (22);

the reinforcing plates (22) are arranged on two side walls of the mounting frame body (21).