Machine tool ram

Abstract

The utility model discloses a ram of a machine tool, which relates to the technical field of machine tools and comprises a ram body, the cross section of the ram body is of a C-shaped structure with 2 / 3 circle, and the opening side of the ram body is close to a cross beam of the machine tool; the bottom of the ram body is provided with a cutting head installation face used for being fixedly connected with a laser cutting head. The sliding rail body is provided with a guide rail pair used for being in sliding connection with a machine tool cross beam. The ram body of the open-loop structure with the C-shaped cross section is adopted, and 2 / 3 fastening connection is reserved between the ram body and the laser cutting head, so that the distance between the axis of the ram body and the machine tool cross beam is shortened, namely, the distance between the cutting center and the machine tool cross beam is shortened, the cutting center is stressed more evenly, and cutting precision and stability are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a machine tool ram. Background Art

[0002] The machine tool slide is the core component of the machine tool, which is mostly manufactured by welding steel plates. Usually, most machine tools completely wrap the A\C\W three-axis laser cutting head and connect it to the slide. This is certainly stable, but it also increases the distance between the beam and the cutting center, resulting in large force on the cutting center and unstable cutting accuracy. Utility Model Content

[0003] The utility model aims to provide a machine tool ram to solve the problems existing in the prior art, shorten the distance between the crossbeam and the cutting center, balance the force on the cutting center, and improve the cutting accuracy and stability.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a machine tool ram, comprising a ram body, the cross section of the ram body being a C-shaped structure of 2 / 3 circle, and an open side being close to a machine tool crossbeam; the bottom of the ram body being provided with a cutting head mounting surface for fixedly connecting a laser cutting head; and the ram body being provided with a guide rail pair for sliding connection with the machine tool crossbeam.

[0006] Preferably, the ram body is cast aluminum.

[0007] Preferably, a rack is also fixedly provided on the ram body, and the rack is used for transmission connection with the Z-axis driving mechanism of the machine tool.

[0008] Preferably, a Z-axis drag chain mounting surface is also provided on one side of the ram body close to the machine tool crossbeam.

[0009] Compared with the prior art, the utility model has achieved the following technical effects:

[0010] The machine tool ram provided by the utility model adopts a ram body with an open-loop structure having a C-shaped cross section, and the ram body and the laser cutting head retain a 2 / 3 fastening connection, thereby shortening the distance between the axis of the ram body and the machine tool crossbeam, that is, shortening the distance between the cutting center and the machine tool crossbeam, so that the cutting center is subjected to more balanced force, thereby ensuring cutting accuracy and stability.

[0011] Furthermore, the ram body is made of cast aluminum, which is lightweight and more portable and flexible when moved by the machine tool motion mechanism, thereby ensuring the operating speed.

[0012] Furthermore, the rack can be connected to the Z-axis drive mechanism of the machine tool in transmission, thereby achieving stable movement of the slide in the Z-axis direction.

[0013] Furthermore, the Z-axis drag chain mounting surface provided on the ram body can provide fixation for the end of the Z-axis drag chain, ensure the relative position of the Z-axis drag chain, and improve movement flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the overall structure of the machine tool ram provided by the utility model;

[0016] Figure 2 A schematic diagram of the structure of a machine tool slide provided by the utility model with a laser cutting head installed;

[0017] Figure 3 A schematic diagram of the structure of a machine tool ram provided by the utility model installed on the Y / Z axis saddle of the machine tool crossbeam;

[0018] Figure 4 The utility model is a structural schematic diagram of a machine tool slide installed on a machine tool.

[0019] In the figure:

[0020] 100-Machine tool ram;

[0021] 1- ram body; 11- cutting head mounting surface; 12- guide rail mounting surface; 13- Z-axis drag chain mounting bracket; 131- Z-axis drag chain mounting surface;

[0022] 2- rack;

[0023] 3-Z-axis guide rail;

[0024] 4-Z-axis driving mechanism;

[0025] 5-A / C / W three-axis laser cutting head;

[0026] 6-Machine tool beam;

[0027] 7-Y / Z axis saddle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The utility model aims to provide a machine tool ram to solve the problems existing in the prior art, shorten the distance between the crossbeam and the cutting center, balance the force on the cutting center, and improve the cutting accuracy and stability.

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Embodiment 1

[0032] This embodiment provides a machine tool ram 100, such as Figure 1 to Figure 4 As shown, it includes a ram body 1, the cross section of the ram body 1 is a C-shaped structure of 2 / 3 circle, and the open side is close to the machine tool cross beam 6; the bottom of the ram body 1 has a cutting head mounting surface 11 for fixed connection of the laser cutting head; and the ram body has a guide rail pair for sliding connection with the machine tool cross beam 6. By adopting the ram body 1 with an open-loop structure in the C-shape cross section, the ram body 1 and the laser cutting head retain a 2 / 3 fastening connection, thereby shortening the distance between the axis of the ram body 1 and the machine tool cross beam 6, that is, shortening the distance between the cutting center and the machine tool cross beam 6, so that the cutting center is more evenly stressed, ensuring cutting accuracy and stability.

[0033] Specifically, the laser cutting head may be an A / C / W three-axis laser cutting head 5 .

[0034] Specifically, the ram body 1 adopts a C-shaped open-loop structure, and can be analyzed by finite element static stress to ensure that the distance between the cutting center and the machine tool crossbeam 6 is shortened while satisfying the use strength.

[0035] In the optional scheme of this embodiment, it is more preferred that the ram body 1 is made of cast aluminum. The ram body 1 made of cast aluminum is light in weight and is more portable and flexible when driven by the machine tool motion mechanism, thereby ensuring the running speed.

[0036] Specifically, it is made of cast aluminum. After the Z-axis guide 3, the Z-axis rack 2 and the A / C / W three-axis laser cutting head 5 are installed, the Z-axis servo motor of the machine tool crossbeam 6 and the Z-axis reducer can achieve a running speed of 100m / min.

[0037] Among them, the guiding sliding structure of the ram body 1 and the structure driving it to slide:

[0038] Specifically, two guide rail pair mounting surfaces 12 are provided on a side of the ram body 1 close to the machine tool, and a Z-axis guide rail 3 is mounted on each guide rail pair mounting surface 12 .

[0039] Specifically, multiple sliders are slidably arranged on the two guide rail pairs of the slide body 1, each slider is fixedly arranged on the Y / Z axis slide saddle 7 of the machine tool, and the Z axis drive mechanism 4 is fixed on the Y / Z axis slide saddle 7 of the machine tool; the Y / Z axis slide saddle 7 of the machine tool is slidably arranged on the machine tool crossbeam 6 along the Y direction.

[0040] Specifically, since the ram body 1 is connected to the Y / Z-axis saddle 7, there is a certain distance between the ram body 1 and the machine tool crossbeam 6. The cutting head mounting surface 11 of the ram body 1 is lower than the lower end of the Y / Z-axis saddle 7. Therefore, the part of the laser cutting head that is not connected to the ram body 1 is located in the gap between the ram body 1 and the machine tool crossbeam 6.

[0041] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, a rack 2 is fixedly disposed on the ram body 1, and the rack 2 is used for transmission connection with the Z-axis drive mechanism 4 of the machine tool. The rack 2 can be transmission-connected with the Z-axis drive mechanism 4 of the machine tool, thereby realizing stable movement of the ram in the Z-axis direction.

[0042] Specifically, the rack 2 is arranged along the Z direction, and is used for meshing and transmitting with the Z-axis reducer gear of the Z-axis driving mechanism 4 .

[0043] Among the optional solutions of this embodiment, it is more preferred that Figure 1 to Figure 4 As shown, a Z-axis drag chain mounting surface 131 is also provided on one side of the ram body 1 close to the machine tool crossbeam 6. The Z-axis drag chain mounting surface 131 provided on the ram body 1 can provide fixation for the end of the Z-axis drag chain, ensure the relative position of the Z-axis drag chain, and improve the movement flexibility.

[0044] Specifically, a Z-axis drag chain mounting frame 13 is fixedly disposed on the ram body 1 , and a Z-axis drag chain mounting surface 131 is disposed on the Z-axis drag chain mounting frame 13 .

[0045] The machine tool slide rail of this embodiment is specifically described as follows:

[0046] There are 8 mounting threaded holes on the cutting head mounting surface 11, which are used to fix the A / C / W three-axis laser cutting head 5. The Z-axis guide rail 3 is fixedly set on the guide rail sub-mounting surface 12. When the ram body 1 is to perform vertical reciprocating motion up and down (i.e., Z-direction motion), the Z-axis servo motor on the machine tool crossbeam 6 runs to drive the Z-axis reducer gear connected to it to rotate. The Z-axis reducer gear is meshed with the rack 2 of the ram body 1 to realize the ram body 1 to perform vertical reciprocating motion up and down, thereby driving the A / C / W three-axis laser cutting head 5 to perform vertical reciprocating motion up and down.

[0047] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A machine tool ram, characterized in that: including a ram body; The cross section of the ram body is a 2 / 3 circle C-shaped structure, and the opening side is close to the machine tool beam; The bottom of the ram body has a cutting head mounting surface for fixed connection of a laser cutting head; The ram body is provided with a guide rail pair for sliding connection with the machine tool crossbeam.

2. The machine tool ram according to claim 1, characterized in that: The ram body is cast aluminum.

3. The machine tool ram according to claim 1, characterized in that: A rack is also fixedly provided on the ram body, and the rack is used for transmission connection with the Z-axis driving mechanism of the machine tool.

4. The machine tool ram according to claim 3, characterized in that: A Z-axis drag chain mounting surface is also provided on one side of the ram body close to the machine tool crossbeam.

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