CN217859935U

CN217859935U - Horizontal numerical control machine tool

Info

Publication number: CN217859935U
Application number: CN202221314153.XU
Authority: CN
Inventors: 李玉朝; 王军宁; 王少凡; 党琼峰; 王锦雪
Original assignee: BAOJI ZHONGCHENG MACHINE TOOL CO LTD
Current assignee: BAOJI ZHONGCHENG MACHINE TOOL CO LTD
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-11-22
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a horizontal digit control machine tool, including the lathe bed, be equipped with the aircraft nose that the rotary motion was done to the drive work piece on the lathe bed, be equipped with on the lathe bed and remove the knife rest assembly that carries out processing to the work piece along the lathe bed, be equipped with the step portion that is located the work piece below on the lathe bed, step portion includes negative and positive face, and the slope of positive face sets up, installs the guided way on the negative face, is provided with the mobile device on the guided way, is fixed with on the positive face to extend the positive edge and can shelter from the apron in the guided way top. This lathe is located the step portion positive face slope setting of part below, makes the cutting can fall outside the lathe along the positive face by the dead weight, and the apron on the positive face can prevent that the cutting from getting into and avoiding causing the jam among track or the actuating mechanism, improves mobile device's operational reliability, because the apron is fixed not along with tailstock and centre frame removal, has avoided the easy problem of interfering, the trouble is many of traditional telescopic guard plate.

Description

Horizontal numerical control machine tool

Technical Field

The utility model relates to a numerical control machine tool technical field, concretely relates to horizontal numerical control lathe and turning center.

Background

With the development trend of the numerical control machine tool towards automation and intellectualization, the main shaft, the tool rest and the tailstock which are used as key moving parts of the turning center and the numerical control lathe are replaced by a No. 2 main shaft, and functional parts such as the following similar parts, the center frame and the like have to be highly automated in the first place, and the reliability of automation is urgently needed to be improved.

At present, a turning center and a main shaft component and a tool rest component of a numerical control lathe are highly automated, but the automation degree of a tailstock component and a center frame component is not high, and the urgent requirement of industrial automation development cannot be met. In the existing turning center and numerical control lathe, manual or hydraulic drive technology is generally used for Z-direction movement of a tailstock part and a central frame part; the more advanced technology is that only one part adopts servo drive, adopts a transmission mode of a servo motor and a lead screw, and has high requirements on protection sealing performance and shape and size; tailstock and centre frame all use servo drive's lathe very rare, and during so configuration, driving motor, lead screw overall arrangement space are not enough, and the protection casing structure is complicated, and leakproofness, reliability are poor to there is the problem of interfering in the protection casing between two parts, and the removal stroke receives great influence, has technical drawback. The turning center and the numerical control lathe are developed only by taking the tailstock as a main functional part, the center frame always exists as an accessory, the two parts share a pair of guide rails, the lathe body adopts a tailstock guide rail standard mode concave guide rail cavity, the lathe body is arranged in the concave cavity and below the guide rail plane in a driving mode, the servo moving function of the center frame is not planned structurally, and numerous technical defects are brought to the follow-up addition of the function. However, the servo-driven machine tool is used for the tailstock and the center frame, so that the requirement for automatic machining or auxiliary automation is more and more common, and the automation degree of the tailstock and the center frame and the stroke between the tailstock and the center frame are demanding, so that technical innovation needs to be performed on a horizontal turning center and a numerical control lathe from the structure of the machine tool at present, the tailstock and the center frame are highly automated, and the reliability is improved.

SUMMERY OF THE UTILITY MODEL

For solving not enough among the prior art, the utility model provides a tailstock, centre frame height automation, its removal stroke is unrestricted, the chip removal is smooth, turning center and numerical control lathe structure that the reliability is high.

The utility model provides a horizontal numerically-controlled machine tool, includes the lathe bed on be equipped with the aircraft nose that drives the work piece and be rotary motion the lathe bed on be equipped with the knife rest assembly that can move along the lathe bed and carry out processing to the work piece the lathe bed on be equipped with the step portion that is located the work piece below, step portion include negative face and positive face, the slope of positive face set up the negative face on install the guided way on be provided with the mobile device the positive face on be fixed with and extend the positive face edge and can shelter from the apron in the guided way top.

Furthermore, the step part is provided with at least two female surfaces and two male surfaces, the guide rail is provided with two sections in parallel and fixed on the two female surfaces respectively, and the male surfaces are fixed with cover plates respectively.

Furthermore, a rack is arranged on one of the female surfaces, and the cover plate extends out of the edge of the male surface and can be shielded above the rack.

Furthermore, the step part is provided with three female surfaces and three male surfaces, wherein two female surfaces are used for installing the guide rail, and the other female surface is used for installing the rack.

Furthermore, a motor is arranged on the mobile device, and a gear meshed with the rack is connected to the motor.

Furthermore, a tool rest guide rail for moving the tool rest assembly is arranged on the tool body, and a motor lead screw assembly for driving the tool rest assembly to move is arranged on the tool body.

Furthermore, the tool rest guide rail is higher than the rotation center of the machine head.

Furthermore, the tool rest guide rails are provided with a pair of tool rest guide rails in parallel, and the tool rest guide rails are positioned on one side of the step portion and are lower.

Furthermore, a limiting block for positioning the side edge of each guide rail is arranged at the edge of each male surface.

Furthermore, a brush or a scraping plate is arranged at the edge of the position where the mobile equipment is matched with the male surface.

Furthermore, the mobile equipment comprises a tailstock, an auxiliary main shaft, a center frame, a follow rest, an auxiliary knife rest, a workpiece bracket, a loading and unloading device, a tool setting gauge, a measuring device and cleaning.

Further, the female side is inclined towards the ground.

This lathe is located the step portion positive face slope setting of work piece below, makes the cutting can fall outside the lathe along the positive face by the dead weight, and the apron on the positive face can prevent that the cutting from getting into in track or the actuating mechanism and avoiding causing the jam, improves mobile device's operational reliability, because the apron is fixed not remove along with tailstock and centre frame, has avoided the easy problem of interfering, the trouble is many of traditional telescopic guard plate.

Drawings

FIG. 1 is a schematic view of a machine tool;

FIG. 2 is a schematic view showing a stepped portion of a machine tool;

FIG. 3 is a schematic view showing a state of mounting a rack and a cover plate of a guide rail on a step portion of a machine tool;

fig. 4 is a sectional view showing an assembled state of the stepped portion and the center frame;

fig. 5 is a schematic view of the structure of the center frame motor and the gear.

Detailed Description

In order to better understand the technical solution of the present invention, the following structure of the present invention is further described in detail with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1, the machine tool includes a machine tool body 1, a machine head 2 is arranged on the machine tool body 1, the machine head 2 includes components such as a transmission mechanism and a jaw for fixing a workpiece and driving the workpiece to make a rotary motion, a tool rest assembly 3 is further arranged on the machine tool body 1, the tool rest assembly 3 can move along the machine tool body 1 to process the workpiece through a cutter on the tool rest assembly 3, specifically, as shown in fig. 1, a tool rest guide rail 12 is arranged on the machine tool body 1, the tool rest assembly 3 is arranged on the tool rest guide rail 12, a motor screw assembly 13 is arranged on the machine tool body 1 to drive the tool rest assembly 3 to move on the tool rest guide rail 12, the tool rest guide rail 12 is arranged on one side of the workpiece, and as can be seen from the figure, the tool rest guide rail 12 is slightly higher than the axis of the workpiece arranged on the machine head 2, so as to avoid that an iron pin falls into the tool rest guide rail 12 or the motor screw assembly 13 during the turning process and to avoid affecting the movement of the tool rest assembly 3, certainly, in order to achieve better protection, the tool rest guide rail 12 is arranged at the top of the workpiece and is equivalent to a truss type or gantry type structure, the bed 1 is further provided with a step portion 4, the step portion 4 is located below the workpiece and used for installing mobile equipment, the mobile equipment comprises a tailstock, an auxiliary spindle, a follower rest, a center frame, an auxiliary tool rest, a workpiece bracket, a loading and unloading device, a tool setting instrument, a measuring device, a cleaning device and other common auxiliary equipment in the machine tool, the equipment is installed in the machine tool and needs to be capable of moving on a rail, only the installation state embodiments of the tailstock 6 and the center frame 7 are shown in the drawing, and specifically, different mobile equipment can be installed according to actual conditions, the tailstock and the center frame shown in the drawing are used as an example for explanation, and other mobile equipment can be referred to. As shown in fig. 2, the step portion 4 comprises a female surface 4-1 and a male surface 4-2, the male surface 4-2 is obliquely arranged, as shown in fig. 3, a guide rail 5 is arranged on the female surface 4-1 for mounting the tailstock 6 and the center frame 7 for movement, a cover plate 8 is fixed on the male surface 4-2, and the cover plate 8 extends out of the edge of the male surface 4-2, so that the cover plate 8 can shield the upper side of the guide rail 5 mounted on the female surface 4-1, when turning, an iron pin falls on the cover plate 8 and then slides along an inclined plane, and cannot fall on the guide rail 5 to influence the movement of the tailstock 6 and the center frame 7, the cover plate 8 is different from a telescopic protection plate, the cover plate 8 in the technical scheme is fixed on the lathe bed 1, cannot move along with the tailstock 6 or the center frame 7, so that failure is avoided, and the stable operation of the lathe is improved, and the failure rate is low. Since the guide rails 5 for mounting the tailstock 6 and the center frame 7 are generally arranged at two intervals, the step 4 is provided with at least two steps, so that two female surfaces 4-1 and two male surfaces 4-2 are formed, the two guide rails 5 are respectively arranged on the two female surfaces 4-1, while the step 4 is arranged as a three-step in the embodiment of fig. 2 and 3, in order to mount the rack 9 for driving the tailstock 6 and the center frame 7 to move, the two guide rails 5 are respectively mounted on the two female surfaces 4-1 to be parallel, the rack 9 is arranged on the other female surface 4-1, correspondingly, the motors 10 are respectively arranged on the tailstock 6 and the center frame 7, the end of each motor 10 is provided with the gear 11, the gear 11 is meshed with the rack 9, the gear 11 is driven to rotate by the motor 10, when the gear 11 walks on the rack 9, the tailstock 6 and the center frame 7 can be driven to move, automation of the center frame 7 and the center frame 6 can be realized, the tailstock assembly 7 can move along with the tool rest 3, and the center frame can be automatically dragged to reduce the extent of the tool rest 6 without influence. The specific arrangement of the motor 10 and the gear 11 can be as shown in fig. 5, and if the situation that the rotating shaft of the motor 10 is opposite to the rack 9 in the embodiment is adopted, the worm gear 16 can be adopted to drive and connect the motor 10 and the gear 11 together so that the gear 11 can be meshed with the rack, or the motor 10 is vertically provided with a transmission shaft to directly mount the gear 11.

In the embodiment shown in fig. 1 and 2, a pair of tool post guides 12 are horizontally arranged, and in order to keep the tool post assembly 3 integrally aligned with the inclined arrangement of the bed 1, the side of the tool post assembly adjacent to the step portion 4 is arranged lower, so that the tool post assembly 3 has a certain inclination angle after being installed, thereby enabling the whole machine tool to keep an inclined state from the layout.

Because the tailstock 6 and the centre frame 7 are transferred on the step part 4, a certain gap is formed between the tailstock 6 and the centre frame 7 and the male surface 4-2, in order to prevent iron pins from entering the gap, as shown in fig. 4, a brush or a scrap scraping plate 15 for cleaning and blocking iron scraps is arranged at the edge of the matching part of the tailstock 6 and the centre frame 7 and the male surface 4-2, and the brush or the scrap scraping plate 15 can block the iron pins from entering the tailstock 6 and the centre frame 7 and can also clean the iron pins remained on the cover plate 8.

In order to reduce the female side 4-1, the female side 4-1 is arranged obliquely towards the ground, i.e. the female side 4-1 and the male side 4-2 are kept relatively perpendicular as shown in fig. 2, which ensures both an effective shielding of the cover plate 8 from the guide rail 5 and an installation of the guide rail 5 at a sufficiently small width of the female side 4-1. Because the female surface 4-1 is vertically arranged relative to the ground, the part of the cover plate 8 extending out of the edge of the male surface 4-2 limits the installation of the guide rail 5, and the height of the female surface 4-1 needs to be increased to enable the guide rail 5 to be far away from the edge of the male surface 4-2 as far as possible so as to leave a space for installing the tailstock and the center frame. In order to increase the rigidity of the guide rail and position the reference surface of the guide rail 5, the edge of the male surface is provided with a limit block 14, as shown in fig. 3, the side edge of the guide rail 5 abuts against the limit block 14 to realize positioning, and the rigidity of the guide rail 5 is improved through the limit block 14.

Claims

1. The utility model provides a horizontal digit control machine tool, includes lathe bed (1) on be equipped with and drive the work piece and be rotary motion's aircraft nose (2) lathe bed (1) on be equipped with and to follow lathe bed (1) and remove knife rest assembly (3) that carry out processing to the work piece, its characterized in that: the lathe bed (1) is provided with a step part (4) below a workpiece, the step part (4) comprises a female surface (4-1) and a male surface (4-2), the male surface (4-2) is obliquely arranged, the female surface (4-1) is provided with a guide rail (5), the guide rail (5) is provided with a mobile device, and the male surface (4-2) is fixedly provided with a cover plate (8) which extends out of the edge of the male surface (4-2) and can shield the guide rail (5).

2. The horizontal numerical control machine tool according to claim 1, characterized in that: the guide rail (5) is provided with two sections in parallel and is respectively fixed on the two female surfaces (4-1), and each male surface (4-2) is fixedly provided with a cover plate (8).

3. The horizontal numerical control machine according to claim 2, characterized in that: a rack (9) is also arranged on one of the female surfaces (4-1), and the cover plate (8) extends out of the edge of the male surface (4-2) and can be shielded above the rack (9).

4. The horizontal numerical control machine tool according to claim 3, characterized in that: the step portion (4) is provided with three female faces (4-1) and three male faces (4-2), wherein two female faces (4-1) are used for installing the guide rail (5) and the other female face (4-1) is used for installing the rack (9).

5. The horizontal numerical control machine according to claim 3 or 4, characterized in that: the mobile equipment is provided with a motor (10), and the motor (10) is connected with a gear (11) meshed with the rack (9).

6. The horizontal numerical control machine tool according to claim 1, characterized in that: the lathe bed (1) is provided with a tool rest guide rail (12) for the movement of the tool rest assembly (3), and the lathe bed (1) is provided with a motor lead screw assembly (13) for driving the tool rest assembly (3) to move.

7. The horizontal numerical control machine tool according to claim 6, characterized in that: the tool rest guide rail (12) is higher than the rotation center of the machine head.

8. The horizontal numerical control machine tool according to claim 6, characterized in that: the tool rest guide rails (12) are arranged in parallel, and the tool rest guide rails (12) which are arranged on one side of the step part (4) are lower.

9. The horizontal numerical control machine tool according to claim 1, characterized in that: and the edge of each male surface (4-2) is provided with a limiting block (14) for positioning the side edge of each guide rail (5).

10. The horizontal numerical control machine tool according to claim 1, characterized in that: the edge of the matching part of the mobile equipment and the male surface is provided with a brush or a scraping plate.

11. The horizontal numerical control machine according to claim 1, 5 or 10, characterized in that: the moving equipment comprises a tailstock (6), an auxiliary main shaft, a center frame (7), a follow rest, an auxiliary tool rest, a workpiece bracket, a loading and unloading device, a tool setting gauge, a measuring device and cleaning.

12. The horizontal numerical control machine tool according to claim 1, characterized in that: the female side (4-1) is inclined towards the ground.