阅读说明：本技术 翻转机构及具有该翻转机构的翻板铣床 (Turnover mechanism and plate-turning milling machine with same ) 是由 刘士孔 刘星明 肖国正 张国 于 2021-06-30 设计创作，主要内容包括：本发明公开了一种翻转机构,它包括若干回转支架,沿一回转中心固定；一工作台,包括一第一侧面、一第二侧面和一第三侧面,所述第二侧面与第三侧面相对设置且均垂直于所述第一侧面；所述第一侧面与所述若干回转支架转动连接；两滑板,分别与所述工作台的第二侧面和第三侧面转动连接；两第一直线驱动组件,竖直对称设置于所述工作台的两侧；所述两第一直线驱动组件分别与一所述滑板滑动连接,以驱使该两滑板在一预设高度范围内作同步直线往复运动；以及两第二直线驱动组件,水平对称设置于所述若干回转支架的外侧。本发明还公开了一种具有该翻转机构的翻板铣床。本发明翻板铣床可以实现自动卸料,极大地提高工作效率。(The invention discloses a turnover mechanism, which comprises a plurality of rotary supports, a plurality of rotary supports and a plurality of turnover mechanisms, wherein the rotary supports are fixed along a rotary center; the workbench comprises a first side surface, a second side surface and a third side surface, wherein the second side surface and the third side surface are arranged oppositely and are vertical to the first side surface; the first side surface is rotationally connected with the plurality of rotating supports; the two sliding plates are respectively and rotatably connected with the second side surface and the third side surface of the workbench; the two first linear driving assemblies are vertically and symmetrically arranged on two sides of the workbench; the two first linear driving assemblies are respectively connected with one sliding plate in a sliding manner so as to drive the two sliding plates to do synchronous linear reciprocating motion within a preset height range; and the two second linear driving assemblies are horizontally and symmetrically arranged on the outer sides of the plurality of rotary supports. The invention also discloses a plate turnover milling machine with the turnover mechanism. The plate turnover milling machine can realize automatic discharging, and greatly improves the working efficiency.)

1. A turnover mechanism, comprising:

a plurality of rotating supports fixed along a rotating center;

the workbench comprises a first side surface, a second side surface and a third side surface, wherein the second side surface and the third side surface are arranged oppositely and are vertical to the first side surface; the first side surface is rotationally connected with the plurality of rotating supports;

the two sliding plates are respectively and rotatably connected with the second side surface and the third side surface of the workbench;

the two first linear driving assemblies are vertically and symmetrically arranged on two sides of the workbench; the two first linear driving assemblies are respectively connected with one sliding plate in a sliding manner so as to drive the two sliding plates to do synchronous linear reciprocating motion within a preset height range; and

the two second linear driving assemblies are horizontally and symmetrically arranged on the outer sides of the plurality of rotary supports; the two second linear driving assemblies are respectively connected with one first linear driving assembly so as to drive the two first linear driving assemblies to do synchronous linear reciprocating motion within a preset length range;

the two sliding plates and the two first linear driving components are driven to do linear reciprocating motion simultaneously so as to drive the workbench to turn over within 180 degrees around the rotation center.

2. The turnover mechanism of claim 1, wherein the first linear drive assembly includes a vertical shaft, two first guide rails, a ball screw pair and a first servo motor; the two first guide rails are symmetrically arranged along the height direction of the vertical shaft and are connected with the sliding plate in a sliding manner; the ball screw pair is arranged between the two first guide rails, a nut in the ball screw pair is fixedly connected with the sliding plate, a screw in the ball screw pair is connected with the first servo motor, and the first servo motor is fixed at the first end of the vertical shaft in the height direction.

3. The turnover mechanism as claimed in claim 2, wherein the slide plate is provided with two first slide blocks on a surface thereof facing the vertical shaft, and the two first slide blocks are respectively slidably sleeved on the first guide rails.

4. The turnover mechanism of claim 1, wherein the second linear drive assembly includes a cross shaft, two second guide rails, a rack and pinion pair, and a second servo motor; the two second guide rails are symmetrically arranged along the length direction of the transverse shaft and are in sliding connection with the lower end of the first linear driving assembly; the rack in the gear and rack pair is arranged between the two second guide rails, the gear in the gear and rack pair is connected with the second servo motor, and the second servo motor is fixed on the lower side of the first linear driving assembly.

5. The turnover mechanism as claimed in claim 1, wherein the lower end of the first linear driving assembly is provided with two second sliding blocks, and the two second sliding blocks are respectively slidably sleeved on the second guide rail.

6. The turnover mechanism of claim 1, wherein the two sliding plates are rotatably connected to the second side and the third side of the table by a pin, and a connection line of the two pins is parallel to the rotation center.

7. The turnover mechanism of claim 6, wherein the table further includes a fourth side, and a line connecting the two pins is equidistant from the first side and the fourth side.

8. The turnover mechanism of claim 1, wherein the first side of the working table is provided with mounting blocks corresponding to the plurality of rotary supports one to one, and each mounting block is rotatably connected with one of the rotary supports through two rotary shafts.

9. The turnover mechanism of claim 8, wherein the rotary support includes two support plates disposed opposite to each other, and coaxial rotary grooves are formed at upper ends of the two support plates and are engaged with the rotary shaft.

10. A flap milling machine, characterized in that it comprises a turning mechanism according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of high-end equipment manufacturing, in particular to a plate turnover milling machine and a turnover mechanism thereof.

Background

The plate turnover milling machine belongs to high-end equipment manufacturing equipment urgently needed by domestic aviation and military enterprises, and due to industry monopoly and technical blockade of foreign dominant machine tool enterprises, the machine tool is expensive, complex and difficult in after-sale service, difficult to meet normal production of related products, and even retards the development of national defense industry in China.

The machining mode of the plate turnover milling machine is characterized in that a blank machined part is fixed, the surface of the machined part is erected through the turnover mechanism, and a milling head moves from the side surface to perform milling machining. The size of the workpiece processed by the plate turnover milling machine is usually larger, and the workpiece is in a vertical state during processing. Therefore, a turnover mechanism must be designed for loading and unloading. Since the size of the work bench may reach 5 m by 3 m, the floor space is large if the feeding and discharging are designed separately. In addition, the thickness of the workpiece may be only 10mm, so the workpiece needs to be turned over together with the workbench, and the load of the turning mechanism is large at the moment, so that the safety risk is high.

In the prior art, the turnover mechanism of the turnover milling machine can only turn over 90 degrees and cannot realize automatic discharging.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a turnover mechanism so that the turnover milling machine can realize automatic unloading. In addition, the invention also provides a turning plate milling machine with the turning mechanism, so that automatic discharging is realized, and the working efficiency is further improved.

According to an aspect of the present invention, there is provided a turnover mechanism comprising:

a plurality of rotating supports fixed along a rotating center;

the workbench comprises a first side surface, a second side surface and a third side surface, wherein the second side surface and the third side surface are arranged oppositely and are vertical to the first side surface; the first side surface is rotationally connected with the plurality of rotating supports;

the two sliding plates are respectively and rotatably connected with the second side surface and the third side surface of the workbench;

the two first linear driving assemblies are vertically and symmetrically arranged on two sides of the workbench; the two first linear driving assemblies are respectively connected with one sliding plate in a sliding manner so as to drive the two sliding plates to do synchronous linear reciprocating motion within a preset height range; and

the two second linear driving assemblies are horizontally and symmetrically arranged on the outer sides of the plurality of rotary supports; the two second linear driving assemblies are respectively connected with one first linear driving assembly so as to drive the two first linear driving assemblies to do synchronous linear reciprocating motion within a preset length range;

the two sliding plates and the two first linear driving components are driven to do linear reciprocating motion simultaneously so as to drive the workbench to turn over within 180 degrees around the rotation center.

In an embodiment of the present invention, the first linear driving assembly includes a vertical shaft, two first guide rails, a ball screw assembly and a first servo motor; the two first guide rails are symmetrically arranged along the height direction of the vertical shaft and are connected with the sliding plate in a sliding manner; the ball screw pair is arranged between the two first guide rails, a nut in the ball screw pair is fixedly connected with the sliding plate, a screw in the ball screw pair is connected with the first servo motor, and the first servo motor is fixed at the first end of the vertical shaft in the height direction.

In an embodiment of the present invention, two first sliding blocks are disposed on one surface of the sliding plate facing the vertical shaft, and the two first sliding blocks are respectively slidably sleeved on one first guide rail.

In an embodiment of the present invention, the second linear driving assembly includes a horizontal shaft, two second guide rails, a rack and pinion pair and a second servo motor; the two second guide rails are symmetrically arranged along the length direction of the transverse shaft and are in sliding connection with the lower end of the first linear driving assembly; the rack in the gear and rack pair is arranged between the two second guide rails, the gear in the gear and rack pair is connected with the second servo motor, and the second servo motor is fixed on the lower side of the first linear driving assembly.

In an embodiment of the present invention, two second sliding blocks are disposed at a lower end of the first linear driving assembly, and the two second sliding blocks are respectively slidably sleeved on one of the second guide rails.

In an embodiment of the present invention, the two sliding plates are rotatably connected to the second side surface and the third side surface of the workbench by a pin, respectively, and a connection line of the two pins is parallel to the rotation center.

In an embodiment of the present invention, the workbench further includes a fourth side surface, and a distance between a connecting line of the two pins and the first side surface is equal to a distance between the connecting line of the two pins and the fourth side surface.

In an embodiment of the present invention, the first side surface of the working table is provided with mounting blocks corresponding to the plurality of rotating supports one to one, and each mounting block is rotatably connected to one rotating support through two rotating shafts.

In an embodiment of the present invention, the rotating bracket includes two support plates disposed opposite to each other, and coaxial rotating grooves are formed at upper ends of the two support plates and are matched with the rotating shaft.

The turnover mechanism provided by the invention can realize automatic unloading of the plate turnover milling machine, so that the deformation of a thin-wall finished workpiece caused by improper manual adjustment and transportation can be prevented, the unloading period of the plate turnover milling machine can be obviously shortened, and the working efficiency of the plate turnover milling machine is greatly improved.

In addition, the invention also provides a plate turnover milling machine which comprises the plate turnover mechanism.

The turnover mechanism is arranged in the turnover plate milling machine, so that the thin-wall finished workpiece can be prevented from being deformed due to improper manual adjustment and transportation during unloading, the unloading period can be obviously shortened, and the working efficiency of the turnover plate milling machine is greatly improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a first state view of a turning mechanism of a flap milling machine in an embodiment of the present invention;

fig. 2 is a second state diagram of the turnover mechanism of the flap milling machine in an embodiment of the present invention;

FIG. 3 is a third state diagram of the turnover mechanism of the flap milling machine according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 2; and

fig. 7 is a partially enlarged view of fig. 3.

Reference numerals

100 ground

1 rotating support

11 support plate

2 working table

21 mounting block

211 rotating shaft

3 skateboard

31 pin shaft

4 first linear driving assembly

41 vertical shaft

42 first servo motor

421 first motor mount pad

43 first guide rail

431 first slide block

44 lead screw

5 second Linear drive Assembly

51 horizontal axis

52 second servomotor

521 second motor mount

53 second guide rail

531 second slide block

54 rack

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as 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 concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Fig. 1 is a first state view of a turning mechanism of a flap milling machine in an embodiment of the present invention; fig. 2 is a second state diagram of the turnover mechanism of the flap milling machine in an embodiment of the present invention; FIG. 3 is a third state diagram of the turnover mechanism of the flap milling machine according to an embodiment of the present invention; FIG. 4 is an enlarged view of a portion of FIG. 1; FIG. 5 is an enlarged view of a portion of FIG. 4; FIG. 6 is an enlarged view of a portion of FIG. 2; and fig. 7 is a partial enlarged view of fig. 3. According to an aspect of the present invention, there is provided a turnover mechanism, as shown in fig. 1 to 7, including: the device comprises a plurality of rotary supports 1, a workbench 2, two sliding plates 3, two first linear driving assemblies 4 and two second linear driving assemblies 5, wherein the rotary supports 1 are fixed along a rotary center, and the rotary center is a rotary axis. The workbench 2 comprises a first side surface, a second side surface and a third side surface, wherein the second side surface and the third side surface are oppositely arranged and are perpendicular to the first side surface. The first side face is rotatably connected with the plurality of rotating supports 1. The two sliding plates 3 are respectively connected with the second side surface and the third side surface of the workbench 2 in a rotating way. The two first linear driving assemblies 4 are vertically and symmetrically arranged on two sides of the workbench 2. The two first linear driving assemblies 4 are respectively connected with one sliding plate 3 in a sliding manner so as to drive the two sliding plates 3 to do synchronous linear reciprocating motion within a preset height range. The two second linear driving assemblies 5 are horizontally and symmetrically arranged at the outer sides of the plurality of rotating brackets 1, and the two second linear driving assemblies 5 are usually fixed on the ground 100. The two second linear driving assemblies 5 are respectively connected with one first linear driving assembly 4 so as to drive the two first linear driving assemblies 4 to do synchronous linear reciprocating motion within a preset length range. The two sliding plates 3 and the two first linear driving assemblies 4 are driven to do linear reciprocating motion simultaneously so as to drive the workbench 2 to turn over within a range of 180 degrees around the rotation center.

The turnover mechanism provided by the invention can realize automatic unloading of the plate turnover milling machine, so that the deformation of a thin-wall finished workpiece caused by improper manual adjustment and transportation can be prevented, the unloading period of the plate turnover milling machine can be obviously shortened, and the working efficiency of the plate turnover milling machine is greatly improved.

As shown in fig. 4 and 5, the first linear driving assembly 4 may specifically include a vertical shaft 41, two first guide rails 43, a ball screw pair, and a first servo motor 42. The two first guide rails 43 are symmetrically arranged along the height direction of the vertical shaft 41 and are connected with one sliding plate 3 in a sliding manner. The ball screw pair is disposed between the two first guide rails 43, a nut of the ball screw pair is fixedly connected to the sliding plate 3, a screw 44 of the ball screw pair is connected to the first servo motor 42, and the first servo motor 42 may be fixed to a first end of the vertical shaft 41 in the height direction through a first motor mounting seat 421. Thus, the first servo motor 42 can drive the slide 3 to reciprocate up and down along the first guide rail 43. Furthermore, one surface of the sliding plate 3 facing the vertical shaft 41 is provided with two first sliding blocks 431, and the two first sliding blocks 431 are respectively slidably sleeved on one first guide rail 43. In particular, the vertical shaft may be a steel profile used as a base for the first guide rail. The two first sliding blocks are respectively slidably sleeved on the first guide rail 43. Through set up two first tracks respectively on every vertical scroll to connect a first slider respectively on these two first tracks, by this first slider cover and first track interlock joint, can slide the stability of operation from this, increase the load that tilting mechanism can bear, show the security that improves the operation process.

The stand column can be designed to be shorter, so that the rigidity is better, the occupation of height space can be reduced, and the work piece is convenient to transfer. The screw rod 44 is controlled to rotate by the first servo motor 42, the sliding plate 3 is driven by the nut to move linearly and reciprocally along the first guide rail 43, so that the real-time height of the sliding plate 3 can be accurately controlled, and the synchronous and stable operation of the two sliding plates 3 is ensured. Based on this, this two first linear drive assembly 4 can not produce the unbalance loading, and not fragile working member has safe and reliable, long service life's characteristics.

As shown in fig. 5 and 6, the second linear driving assembly 5 includes a horizontal shaft 51, two second guide rails 53, a gear and rack pair 54, and a second servo motor 52. The two second guide rails 53 are symmetrically arranged along the length direction of the transverse shaft 51 and are slidably connected with the lower end of the first linear driving assembly 4. In particular, the transverse shaft may be a steel profile, serving as a base for the second guide rail. The lower end of the first linear driving assembly 4 is provided with two second sliders 531, and the two second sliders 531 are respectively slidably sleeved on one of the second guide rails 53. The two second rails are arranged on the cross shaft, the two second rails are respectively connected with the second sliding block, and the second sliding block sleeve is meshed with the upper parts of the second rails, so that the first linear driving assembly can be prevented from inclining in the operation process, and the operation stability of the first linear driving assembly is ensured. The rack 54 of the rack and pinion 54 pair is disposed between the two second guide rails 53, the gear of the rack and pinion 54 pair is connected to the second servo motor 52, and the second servo motor 52 can be fixed to the lower side of the first linear driving assembly 4 through a second motor mounting seat 521. Thus, the second servo motor 52 can drive the first linear driving unit 4 to reciprocate horizontally and linearly along the second guide rail 53. When the two sliding plates 3 and the two first linear driving assemblies 4 are simultaneously driven to do linear reciprocating motion, the two sliding plates 3 drive the workbench 2 to turn over within a range of 180 degrees around the rotation center.

As shown in fig. 1, 4, 5, 6 and 7, the two sliding plates 3 are respectively rotatably connected to the second side surface and the third side surface of the working platform 2 by a pin 31, and a connecting line of the two pin 31 is parallel to the rotation center. The line connecting the two pins 31 is also the second rotation center of the worktable 2. Further, the workbench 2 further comprises a fourth side surface, and the distance from the connecting line of the two pins 31 to the first side surface and the fourth side surface is equal. Therefore, the workbench 2 can be stably turned over within the range of 180 degrees.

As shown in fig. 2, 3 and 7, the first side surface of the working table 2 may be provided with mounting blocks 21 corresponding to the plurality of pivoting supports 1 one to one, and each mounting block 21 is rotatably connected to one pivoting support 1 through two pivoting shafts 211. Specifically, the pivoting bracket 1 may include two support plates 11 disposed opposite to each other, and coaxial pivoting grooves are formed at upper ends of the two support plates 11 and are engaged with the pivoting shaft 211. The table 2 can thus be tilted through 180 ° about the pivoting support 1.

In summary, the turnover mechanism provided by the invention can realize automatic unloading of the turnover milling machine, has strong bearing capacity, and the workbench 2 can turn over around the rotation center within 180 degrees, so that loading and unloading of the turnover milling machine can be completed at the same position, thereby obviously shortening the unloading period of the turnover milling machine, improving the working efficiency of the turnover milling machine, and not easily damaging workpieces. In addition, the turnover mechanism can be adapted to a large-size workbench 2, so that the size range of parts machined by the turnover milling machine is wider. The operation of this tilting mechanism is driven by servo motor, not only does not have hydraulic oil and reveals the risk, more can accurate control workstation 2's rotation angle, and the operational reliability is high.

In addition, the invention also provides a plate turnover milling machine which comprises the plate turnover mechanism. A specific embodiment of the turning mechanism is described above with reference to fig. 1 to 7, and thus, will not be described herein again. It should be understood by those skilled in the art that the turnover mechanism is only a part of the plate milling machine, and the other structures of the plate milling machine are not the point of the invention, and are not described in detail herein since they are prior art. The turnover mechanism has strong bearing capacity, the workbench 2 can turn around the rotation center within 180 degrees, so that the loading and unloading of the turnover milling machine can be completed at the same position, the unloading period of the turnover milling machine can be obviously shortened, the working efficiency of the turnover milling machine is improved, and workpieces are not easy to damage. In addition, the turnover mechanism can be adapted to a large-size workbench 2, so that the size range of parts machined by the turnover milling machine is wider. The operation of this tilting mechanism is driven by servo motor, not only does not have hydraulic oil and reveals the risk, more can accurate control workstation 2's rotation angle, and the operational reliability is high.

In summary, the turnover mechanism is arranged in the turnover milling machine provided by the invention, so that the deformation of a thin-wall finished workpiece caused by improper manual adjustment and transportation during unloading can be prevented, the blanking period can be obviously shortened, and the working efficiency of the turnover milling machine is greatly improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.