WO2022127501A1 - 多驱组合式折弯机 - Google Patents

多驱组合式折弯机 Download PDF

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Publication number
WO2022127501A1
WO2022127501A1 PCT/CN2021/131350 CN2021131350W WO2022127501A1 WO 2022127501 A1 WO2022127501 A1 WO 2022127501A1 CN 2021131350 W CN2021131350 W CN 2021131350W WO 2022127501 A1 WO2022127501 A1 WO 2022127501A1
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WIPO (PCT)
Prior art keywords
assembly
bending
transmission
vertical plate
bending machine
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PCT/CN2021/131350
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English (en)
French (fr)
Inventor
汪立新
王军
李振光
张磊
Original Assignee
瑞铁机床（苏州）股份有限公司
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Application filed by 瑞铁机床（苏州）股份有限公司 filed Critical 瑞铁机床（苏州）股份有限公司
Priority to EP21905430.1A priority Critical patent/EP4129512A4/en
Publication of WO2022127501A1 publication Critical patent/WO2022127501A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work

Definitions

  • the invention relates to the technical field of bending machines, in particular to a multi-drive combined bending machine.
  • the existing pure electric servo bending machine on the market is the new direction of the current development of the bending machine industry due to its advantages of energy saving, high efficiency, fast action response, and no need for hydraulic oil.
  • the current pure electric servo bending machine still has technical bottlenecks due to the influence of load, bending deformation, eccentric load deformation and other factors.
  • the existing pure electric servo bending machine usually adopts the screw nut as the transmission structure, and the transmission form of a single screw combined with a servo motor is generally used. Due to the limitation of the load characteristics of the ball screw, it is difficult to meet the application with large load. occasion. In addition, during the bending process, the sliding plate will have a certain amount of deformation due to the abutment action. In the prior art, a combination of a compensation component and a data processing component is used to eliminate, but the above solution is based on a working state in which the force-bearing points at both ends of the slide plate are hinged.
  • the embodiment of the present invention provides a multi-drive combined bending machine, which, through the cooperation between the rotating part, the transmission assembly and the bending assembly, ensures the guarantee before and after the deformation of the bending assembly.
  • the transmission components will not be deformed, so the transmission parts will not fail.
  • a multi-drive combined bending machine comprising a bending assembly, a driving assembly and a transmission assembly, two ends of the transmission assembly are respectively connected with the bending assembly and the driving assembly, so that all The transmission assembly can drive the bending assembly to move toward the material to be bent under the action of the driving assembly;
  • the transmission assembly includes a transmission member and a mounting member arranged on the transmission member, the mounting member is provided with a connecting member whose one end is fixedly connected with it, and the connecting member is sleeved with the folding member that can rotate relative to it.
  • a bending assembly, a rotating member sleeved on the connecting member and rotatable relative to the connecting member is arranged between the mounting member and the bending assembly, and the bending assembly can abut with the rotating member , so as to be able to rotate relative to the connecting piece under the action of external force.
  • the number of the transmission members is multiple, and the plurality of transmission members are symmetrically arranged with respect to the bending assembly and located on the inner and outer sides of the bending assembly.
  • the connecting piece includes a tie rod whose fixed end is threadedly locked with the mounting piece, and the free end passes through the bending assembly.
  • the outer side wall of the thrust spherical plain bearing has a preset clearance.
  • the bending assembly includes a vertical plate and a bending portion arranged on the vertical plate.
  • the vertical plate is provided with a mounting notch extending along the inner and outer directions thereof, and the free end of the tie rod can be positioned along the vertical plate.
  • the moving direction of the bending assembly penetrates part of the vertical plate structure and extends into the installation notch, and the free end of the tie rod is provided with a locking member capable of abutting with the inner side wall of the vertical plate.
  • a conical surface member and a spherical surface member sleeved on the tie rod are also provided, wherein the conical surface of the conical surface member and the spherical surface of the spherical surface member are provided. Abutting settings.
  • a guide rail extending along the moving direction of the bending assembly is further included, and a guide member capable of being fixedly connected with the vertical plate is slidably arranged on the guide rail.
  • the transmission member includes a ball screw extending along the moving direction of the bending assembly
  • the mounting member includes a nut seat threaded on the two ball screws, wherein each of the ball screws The rods respectively correspond to one of the drive assemblies.
  • the nut seat is provided with a plurality of lubricating through holes extending to the ball screw, and the lubricating through holes are provided with grease nipples.
  • the drive assembly includes a servo motor, a first pulley member, a timing belt member and a second pulley member, wherein the output end of the servo motor is drivingly connected to the first pulley member, and the second pulley member
  • the pulley member is drivingly connected with the transmission assembly, and the synchronous belt is arranged on the first pulley member and the second pulley member to transmit the driving force of the servo motor to the transmission assembly.
  • a bearing member passing through the ball screw is arranged between the second pulley member and the transmission assembly, and the bearing member includes a pressure cover, a bearing seat and a plurality of thrust angular contact ball bearings .
  • each group of the transmission members is symmetrically arranged with respect to the vertical plate, and is located on the inner and outer sides of the vertical plate, each of the vertical plates
  • the CNC system and the compensation mechanism in the complete precision compensation can effectively cooperate with the existing technology in the case of completely avoiding the failure of the ball screw.
  • FIG. 1 is a schematic structural diagram of an overall device in an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a rack in an embodiment of the present invention.
  • Fig. 3 is the partial structural schematic diagram in the embodiment of the present invention.
  • Fig. 4 is the partial structure sectional view of the transmission assembly in the embodiment of the present invention.
  • Fig. 5 is the partial enlarged view of A place in Fig. 4;
  • FIG. 6 is a top view of a part of the structure in the embodiment of the present invention.
  • this embodiment discloses a multi-drive combined bending machine, which includes a bending assembly 1 , a driving assembly 2 and a transmission assembly 3 .
  • the above components can be arranged on the frame according to the installation requirements, wherein the two ends of the transmission component 3 can be connected with the bending component 1 and the driving component 2 respectively, so that the transmission component 3 is in the driving component 2.
  • the bending assembly 1 can be driven to move toward the material to be bent, thereby effectively completing the bending process.
  • the bending machine in the present application can complete the required actions more intelligently in cooperation with the numerical control system in the prior art.
  • the rack includes a first wall panel, a second wall panel that extend along the vertical direction and are arranged at intervals, and A plurality of vertical plates 11 and reinforcing ribs are formed between the two wall panels.
  • the first wall panel and the second wall panel should be provided with lifting ears, and the number of the lifting ears may be two or a multiple of two, so as to facilitate the subsequent position transfer of the rack During the process, by connecting and fixing the above-mentioned lifting lugs with external equipment, the transportation of the rack can be effectively completed.
  • the material of the above-mentioned frame can be made of steel material according to the requirements of parameters such as hardness and weight, and of course it can also be composed of selected steel materials and other materials, which are not limited and described here.
  • the transmission assembly 3 is provided above the bending assembly 1
  • the drive assembly 2 is provided above the transmission assembly 3
  • the drive assembly 2 is disposed on the machine on the shelf.
  • the bending assembly 1 includes a vertical plate 11 extending in a vertical direction, and a bending portion 12 provided on the vertical plate 11 .
  • the bent portion 12 is disposed at or near the lower end of the vertical plate 11 .
  • the bending part 12 is composed of a pressing part and a mounting part, and the bending part 12 can be adaptively set according to different required angles, positions and other parameters of the material to be bent.
  • the drive assembly 2 adopts a pure electric servo drive mode, and specifically includes a pure electric servo motor 21 , a first pulley member 22 , a timing belt member 23 and a second pulley member 24 .
  • a pure electric servo motor 21 is fixedly arranged on the frame, and its output shaft extends in the vertical direction.
  • the first pulley member 22 can be selected from a small pulley that can be driven and connected to the pure electric servo motor 21 and is located above the pure electric servo motor 21; the second pulley member 24 can be selected from a large pulley, The first pulley member 22 and the second pulley member 24 are both disposed in the same horizontal plane, and both can be engaged with the synchronous belt member 23 to achieve a transmission connection.
  • the pure electric servo motor 21 outputs a preset rotational speed to drive the first pulley member 22 to rotate during operation, and the first pulley member 22 can effectively drive the synchronous belt member 23.
  • the second pulley member 24 rotates, thereby realizing the effective transmission of the driving force of the pure electric servo motor 21 .
  • the above-mentioned first pulley member 22 and second pulley member 24 may also adopt other transmission structures such as gear members, which are not limited and described here.
  • the transmission assembly 3 used in the prior art is usually a screw nut piece, and the vertical plate 11 is fixed in a hard connection with the nut piece. It swings in the radial direction, and then causes failures such as the breakage of the fixed end of the screw rod.
  • the traditional installation and fixation method is to use bolts to face multiple parts. The machining accuracy can only be matched to complete the above-mentioned locking process, and the machining is difficult.
  • the technical solution of the transmission assembly 3 disclosed in this embodiment can effectively solve the above-mentioned technical problems.
  • the transmission assembly 3 includes a transmission member, a mounting member disposed on the transmission member, and a connecting member 4 having one end fixedly connected thereto is provided on the mounting member.
  • the connecting piece 4 is sleeved with the bending component that can rotate relative to it, and between the mounting piece and the bending component is sleeved on the connecting piece 4 and can be relative to the connecting piece. 4.
  • a rotating rotating member 5, the bending assembly 1 can abut with the rotating member 5, so as to be able to rotate relative to the connecting member 4 under the action of an external force.
  • the transmission member is a common ball screw 31 on the market.
  • the ball screw 31 includes a ball screw extending in a vertical direction, and a thread is sleeved on the ball screw 31. on the nut seat 32.
  • the upper end of the ball screw 31 is connected with the second pulley member 24 in a driving manner, so that the ball screw 31 can rotate around its own axis under the action of the driving force of the pure electric servo motor 21 , Then, the nut seat 32 is driven to reciprocate in the vertical direction.
  • the vertical plate 11 is connected with the nut seat 32 and can move synchronously along the vertical direction with the nut seat 32 .
  • the above-mentioned ball screw 31 pieces are preferably arranged at the left and right positions of the upper end of the vertical plate 11, wherein the vertical plate 11 is correspondingly provided with a mounting notch 13 extending along the inner and outer directions thereof. .
  • the above-mentioned installation notch 13 penetrates through the inner and outer sides of the vertical plate 11 .
  • the nut seat 32 is provided with a plurality of lubricating through holes 33 extending to the ball screw 31 , and the lubricating through holes 33 are provided with oil nozzles 34 . By adding lubricating oil to the oil nozzle 34, it can act on the ball screw 31, play a better lubricating effect, and prolong the service life.
  • the above-mentioned connecting member 4 includes a tie rod extending in a vertical direction.
  • the lower end surface of the nut seat 32 is provided with a threaded hole extending in the vertical direction
  • the upper surface of the vertical plate 11 is provided with a connection hole extending in the vertical direction, and the connection hole can be connected with the installation notch. 13 Connected.
  • the upper end of the tie rod is threadedly locked in the threaded hole, and the lower end (ie, the free end) extends into the installation notch 13 after passing through the connecting hole.
  • the free end of the tie rod is provided with a locking member 41 that can abut against the inner side wall of the vertical plate 11, and then the connection between the nut seat 32 and the vertical plate 11 is realized through the above-mentioned tie rod.
  • the above-mentioned rotating member 5 includes a thrust spherical plain bearing fixedly arranged on the lower surface of the nut seat 32 and capable of abutting with the upper end surface of the vertical plate 11 . Because the sliding surface of the thrust joint bearing is spherical, it can also perform tilting motion (ie, self-aligning motion) within a certain angle range. It is worth noting that both the vertical plate 11 and the thrust joint bearing are in clearance fit with the pull rod.
  • the number of the transmission members is multiple, preferably the number of the transmission members is four, wherein two are a group, and each group of the transmission members
  • the vertical plates 11 are symmetrically arranged and located on the inner and outer sides of the vertical plates 11 .
  • the above-mentioned four transmission members operate synchronously, and the nut seats 32 of each group of the transmission members can be integrally arranged.
  • each fixed point of the vertical plate 11 can be provided with two transmission parts, which doubles the original load; Under the condition of completely avoiding the failure of the ball screw 31, it can effectively cooperate with the numerical control system and the compensation mechanism in the prior art to complete the precise compensation.
  • a conical surface part 42 and a spherical surface part 43 sleeved on the tie rod are provided between the locking part 41 and the inner side wall of the vertical plate 11,
  • the conical surface of the conical surface part 42 and the spherical surface of the spherical surface part 43 are arranged in abutment, wherein the conical surface part 42 is located above the spherical surface part 43 .
  • the action can solve the above-mentioned problems, thereby avoiding the eccentric load of the ball screw, reducing the installation difficulty of the vertical plate 11 and the frame, so that the bending portion 12 disposed on the vertical plate 11 and the The worktables have good parallelism, so as to accurately perform the bending process on the material to be bent.
  • An elastic member sleeved on the tie rod is also provided between the conical surface member 42 and the inner side wall of the vertical plate 11 .
  • the elastic member includes a spring washer sleeved on the tie rod and abutting with the inner side wall of the vertical plate 11 , and a disc spring located between the spring washer and the conical surface member 42 .
  • the working environment of the vertical plate 11 requires it to perform rapid reciprocating motion in the vertical direction.
  • the above-mentioned flexible arrangement can, on the one hand, play a buffering role when the vertical plate 11 is lifted upward, and on the other hand, can be combined with The above-mentioned conical surface part 42 and spherical surface part 43 are used together to reduce the processing difficulty and cost between the vertical plate 11 and the nut seat 32 .
  • a bearing member is provided between the second pulley member 24 and the transmission assembly 3 .
  • the bearing member is located below the second pulley member 24 and passes through the transmission assembly 3 .
  • the bearing member includes a bearing seat 26 fixedly arranged on the frame, a plurality of thrust angular contact ball bearings 27 located on the bearing seat 26, and a position limit for the thrust angular contact ball bearing 27 the gland 25.
  • the bearing member has a relatively large contact angle, so it is less affected by centrifugal force, and is more suitable for the high-speed rotating ball screw 31 in the present application.
  • the bending machine of the present application further includes a guide rail 6 arranged outside the vertical plate 11 in the vertical direction, and the guide rail 6 is slidably provided with a fixed connection with the vertical plate 11 .
  • guide 7 The position of the above-mentioned guide rail 6 relative to the frame is fixed, so as to be able to play a guiding role during the reciprocating movement of the vertical plate 11 in the up-down direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

一种多驱组合式折弯机，包括折弯组件（1）、驱动组件（2）和传动组件（3），传动组件的两端分别与折弯组件和驱动组件连接，传动组件包括传动件、设置在传动件上的安装件，安装件上设置有一端与其固定连接的连接件（4），连接件上套设有能够相对其转动的折弯组件，安装件和折弯组件之间设置有套设在连接件上并能相对连接件转动的转动件（5），折弯组件能够与转动件抵接，以在外力作用下能够相对连接件转动。通过转动件、传动组件和折弯组件之间的配合，在折弯组件变形的过程前后保证传动组件不会发生变形，因此使得传动件不会发生失效现象。

Description

多驱组合式折弯机 技术领域
本发明涉及折弯机技术领域，具体的是一种多驱组合式折弯机。
背景技术
本部分的描述仅提供与本发明公开相关的背景信息，而不构成现有技术。
市面上现有的纯电伺服折弯机由于具有节能降耗、效率高、动作响应快、无需液压油等优势特点，是目前折弯机行业发展的新方向。但是目前的纯电伺服折弯机由于载荷、折弯变形、偏载变形等因素的影响，还存在技术瓶颈。
现有的纯电伺服折弯机通常采用丝杆螺母作为传动结构，普遍采用的是单个丝杆结合伺服电机的传动形式，由于受滚珠丝杆载荷特性的限制，很难满足载荷较大的应用场合。此外，在折弯过程中，滑板由于抵接动作会产生一定的变形量。现有技术中会采用补偿组件结合数据处理组件的结合进行消除，但上述的方案是建立在滑板的两端受力点为铰接的工作状态。现有技术中的丝杆螺母结构由于是采用固定在滑板受力点位置，在上述变形的过程中会造成螺母带动丝杆理论位置产生偏离，造成折弯精度和可靠性变差；另外在折弯过程中丝杆在其径向会受到快速往复的径向力，从而造成丝杆的摆动，结合丝杆的使用特性，很容易造成丝杆的失效现象的产生，导致丝杆传动效率和使用寿命大大减少。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
为了克服现有技术中的缺陷，本发明实施例提供了一种多驱组合式折弯机，其通过转动件、传动组件和折弯组件之间的配合，在折弯组件变形的过程前后保证传动组件不会发生变形，因此使得传动件不会发生失效现象。
本申请实施例公开了：一种多驱组合式折弯机，包括折弯组件、驱动组件和传动组件，所述传动组件的两端分别与所述折弯组件和驱动组件连接，以使得所述传动组件在驱动组件的作用下能够带动所述折弯组件朝向待折弯料件移动；
所述传动组件包括传动件、设置在所述传动件上的安装件，所述安装件上设置有一端与 其固定连接的连接件，所述连接件上套设有能够相对其转动的所述折弯组件，所述安装件和所述折弯组件之间设置有套设在所述连接件上并能相对所述连接件转动的转动件，所述折弯组件能够与所述转动件抵接，以在外力作用下能够相对所述连接件转动。
进一步地，所述传动件的数量为多个，多个所述传动件关于所述折弯组件对称设置且位于所述折弯组件的内、外两侧。
进一步地，所述连接件包括固定端与所述安装件螺纹锁紧、游离端穿设过所述折弯组件的拉杆，所述转动件包括固定设置在所述安装件上且与所述拉杆的外侧壁具有预设间隙的推力关节轴承。
进一步地，所述折弯组件包括立板、设置在所述立板上的折弯部，所述立板上开设有沿其内外侧方向延伸的安装缺口，所述拉杆的游离端能够在沿折弯组件的移动方向穿设部分所述立板结构后延伸至所述安装缺口内，所述拉杆的游离端上设置有能够与所述立板的内侧壁抵接的锁紧件。
进一步地，所述锁紧件和所述立板的内侧壁之间还设置有套设在所述拉杆上的锥面件和球面件，其中所述锥面件的锥面和球面件的球面抵接设置。
进一步地，还包括沿所述折弯组件移动方向延伸的导轨，所述导轨上滑动设置有能够与所述立板固定连接的导向件。
进一步地，所述传动件包括沿所述折弯组件移动方向延伸的滚珠丝杆，所述安装件包括螺纹穿设在两个所述滚珠丝杆上的螺母座，其中每个所述滚珠丝杆分别对应一个所述驱动组件。
进一步地，所述螺母座上开设有多个延伸至所述滚珠丝杆处的润滑通孔，所述润滑通孔上设置有油嘴。
进一步地，所述驱动组件包括伺服电机、第一带轮件、同步带件和第二带轮件，其中所述伺服电机的输出端与所述第一带轮件驱动连接，所述第二带轮件与所述传动组件驱动连接，所述同步带设置在所述第一带轮件和第二带轮件上，以将所述伺服电机的驱动力传递至所述传动组件上。
进一步地，所述第二带轮件与所述传动组件之间设置有穿设在所述滚珠丝杆上的轴承件，所述轴承件包括压盖、轴承座以及多个推力角接触球轴承。
借由以上的技术方案，本发明的有益效果如下：
1、本申请中通过设置的折弯组件和转动件，在所述折弯组件的立板向上拱起变形的过程中，仅仅是转动件在立板的作用下转过相应的角度，而所述连接件、安装件和传动件在所述立板向上拱起变形前后，相对位置并没有发生变化，因此所述传动件不会发生现有技术中 失效的现象；
2、本申请中通过设置的驱动组件和传动组件，通过将每组所述传动件关于所述立板对称设置、且位于所述立板的内、外两侧，所述立板的每个固定点处可以设置有两个传动件，则在原有载荷的基础上提高了一倍；例外采用两点的固定方式，在完全避免所述滚珠丝杆失效的情况下，能够有效配合现有技术中的数控系统和补偿机构的完成精准补偿。
为让本发明的上述和其他目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附图式，作详细说明如下。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例中的整体装置结构示意图；
图2是本发明实施例中的机架处的结构示意图；
图3是本发明实施例中的部分结构示意图；
图4是本发明实施例中的传动组件处的部分结构剖视图；
图5是图4中A处的局部放大图；
图6是本发明实施例中的部分结构俯视图。
以上附图的附图标记：1、折弯组件；2、驱动组件；3、传动组件；4、连接件；5、转动件；6、导轨；7、导向件；11、立板；12、折弯部；13、安装缺口；21、伺服电机；22、第一带轮件；23、同步带件；24、第二带轮件；25、压盖；26、轴承座；27、推力角接触球轴承；31、滚珠丝杆；32、螺母座；33、润滑通孔；34、油嘴；41、锁紧件；42、锥面件；43、球面件。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，在本发明的描述中，术语“第一”、“第二”等仅用于描述目的和区别类似的对象，两者之间并不存在先后顺序，也不能理解为指示或暗示相对重要性。此外，在 本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
结合图1至图6所示，本实施例公开了一种多驱组合式折弯机，包括折弯组件1、驱动组件2和传动组件3。上述的各组件根据安装需求可以设置在机架上，其中所述传动组件3的两端能够分别与所述折弯组件1和驱动组件2连接，以使得所述传动组件3在驱动组件2的作用下能够带动所述折弯组件1朝向待折弯料件移动，有效完成折弯工序。其中，本申请中的所述折弯机配合现有技术中的数控系统能够更智能地完成所需动作。
结合图1和图2所示，本实施方式中，所述机架包括沿竖直方向延伸且间隔设置的第一墙板、第二墙板、以及横设在所述第一墙板和第二墙板之间的多个立板11和加强筋条组成。其中所述第一墙板和第二墙板上应设置有吊耳，所述吊耳的数量可以为两个，或者是两个的倍数设置，以便于在后续对所述机架的位置转移过程中，通过对上述吊耳处与外部设备的连接固定，即可有效完成对所述机架的搬运。上述所述机架的材质根据硬度、重量等参数的要求，可选用钢制材料制成，当然也可与选用钢制材料和其它材料配合组成，此处不做限制和累述。
结合图1所示，本实施方式中，所述折弯组件1的上方设置有所述传动组件3，所述传动组件3的上方设置有驱动组件2，所述驱动组件2设置在所述机架上。其中，所述折弯组件1包括沿竖直方向延伸的立板11、设置在所述立板11上的折弯部12。优选地，所述折弯部12设置在所述立板11的下端部或临近下端部处。所述折弯部12由压刀件及安装件组成，所述折弯部12根据被折弯料件的不同需求角度、位置等参数均可适应性设置。
本实施方式中，所述驱动组件2采用纯电伺服的驱动方式，具体地包括纯电伺服电机21、第一带轮件22、同步带件23以及第二带轮件24。为了能够具备结构紧凑性、占用空间小的特性，上述的结构可优选为下述的安装方式。所述纯电伺服电机21固定设置在所述机架上、且其输出轴沿竖直方向延伸。所述第一带轮件22可选用能够与所述纯电伺服电机21驱动连接且位于所述纯电伺服电机21上方的小带轮；所述第二带轮件24可以选用大带轮，所述第一带轮件22和第二带轮件24均设置在同一水平面内，且均能够与所述同步带件23之间采用啮合的方式实现传动连接。
上述的设置方式，在工作时所述纯电伺服电机21输出预设转速带动所述第一带轮件22转动，所述第一带轮件22通过所述同步带件23能够有效带动所述第二带轮件24转动，从而实现所述纯电伺服电机21的驱动力的有效传递。当然，上述的第一带轮件22和第二带轮件24还可以采用齿轮件等其它的传动结构，此处不做限制和累述。
结合图1和图3-图6所示，所述折弯组件1的立板11在折弯工序过程中，由于工作台等结构的机械限位以及折弯力因素的影响，会出现以两个固定端部为起点、中间位置向上拱 起的变形现象，同时也会出现轻微的左右偏转的现象，上述的变形和偏转则为所述折弯组件相对所述连接件4转动的表现形式。
现有技术中采用的传动组件3通常是丝杆螺母件，所述立板11是与螺母件采用硬连接的固定方式，上述变形现象一方面会造成丝杆在变形力的作用下一直出现在其径向上的摆动，进而造成丝杆固定端的折断等失效现象的产生，另一方面传统的安装固定方式是采用螺栓正对多个零件的穿设锁紧的固定方式，需要保证各零件之间的加工精度才能配合完成上述的锁紧工序，加工难度大。而本实施中公开的传动组件3的技术方案，能够有效解决上述技术问题。
本实施方式中，所述传动组件3包括传动件、设置在所述传动件上的安装件，所述安装件上设置有一端与其固定连接的连接件4。所述连接件4上套设有能够相对其转动的所述折弯组件，所述安装件和所述折弯组件之间设置有套设在所述连接件4上并能相对所述连接件4转动的转动件5，所述折弯组件1能够与所述转动件5抵接，以在外力作用下能够相对所述连接件4转动。上述的结构设置，在所述折弯组件1的立板11向上拱起变形的过程中，仅仅是转动件5在立板11的作用下转过相应的角度，而所述连接件4、安装件和传动件在所述立板11向上拱起变形前后，相对位置并没有发生变化，因此所述传动件不会发生现有技术中失效的现象。
其中一个实施例中，所述传动件采用市面上常见的滚珠丝杆31件，该滚珠丝杆31件包括沿竖直方向延伸的滚珠丝杆丝杆、螺纹套设在所述滚珠丝杆31上的螺母座32。其中所述滚珠丝杆31的上端部与所述第二带轮件24传动连接，以使得所述滚珠丝杆31能够在所述纯电伺服电机21的驱动力的作用下绕自身轴线转动，进而带动所述螺母座32沿竖直方向往复移动。其中所述立板11与所述螺母座32连接，且能够跟随所述螺母座32沿竖直方向同步运动。
上述的滚珠丝杆31件优选地分别设置在所述立板11的上端部的左侧和右侧位置处，其中，所述立板11上对应开设有沿其内外侧方向延伸的安装缺口13。优选地，上述的安装缺口13贯通所述立板11的内外两侧面。其中，所述螺母座32上开设有多个延伸至所述滚珠丝杆31处的润滑通孔33，所述润滑通孔33上设置有油嘴34。通过向所述油嘴34处添加润滑油，能够作用于滚珠丝杆31上，起到较好的润滑作用，延长使用寿命。
上述的连接件4包括沿竖直方向延伸的拉杆。所述螺母座32的下端面上设置有沿竖直方向延伸的螺纹孔，所述立板11的上表面上设置有沿竖直方向延伸的连接孔，所述连接孔能够与所述安装缺口13连通。所述拉杆的上端部螺纹锁紧在所述螺纹孔内、下端部(即游离端)穿过所述连接孔后延伸至所述安装缺口13内。其中所述拉杆的游离端上设置有能够 与所述立板11的内侧壁抵接的锁紧件41，进而通过上述的拉杆实现所述螺母座32与所述立板11之间的连接。
上述的转动件5包括固定设置在所述螺母座32的下表面上且能够与所述立板11的上端面抵接的推力关节轴承。所述推力关节轴承由于其滑动表面为球面形，亦可在一定角度范围内作倾斜运动(即调心运动)。其中值得注意的是，所述立板11和所述推力关节轴承均与所述拉杆之间间隙配合。
通过上述的设置方式，所述立板11在出现上述的变形现象过程中，通过推力关节轴承的设置，所述推力关节轴承的滑动部会跟随所述立板11转过相应角度；结合上述的间隙配合方式，所述立板11的变形以及推力关节轴承的转动均不会与所述拉杆接触，进而不会出现机械干涉的现象产生，因此所述拉杆、螺母座32以及滚珠丝杆31在所述立板11变形前后的相对位置不会发生变化，尤其是所述丝杆不会受到其径向方向上的力，完全区别于现有技术，从而不会发生现有技术中滚珠丝杆31失效的现象。
结合图1和图3所示，本实施方式中，所述传动件的数量为多个，优选地所述传动件的数量为四个，其中以两个为一组，每组所述传动件关于所述立板11对称设置、且位于所述立板11的内、外两侧。上述的四个传动件同步运行，且每组所述传动件的螺母座32可以一体设置。
目前纯电伺服折弯机由于受到传动组件3与折弯组件1之间的连接结构的影响，其中一个固定点只能设置有一个纯电伺服电机21，上述这种情况就造成单点载荷小的弊端。另外为了增大折弯机的载荷，在上述结构的基础上采用多点设置，则会造成所述立板11工作过程中在竖直平面内呈波浪形拱起，无法配合现有技术中数控系统和补偿机构的完成精准补偿。
本实施方式中通过上述的设置方式，所述立板11的每个固定点处可以设置有两个传动件，则在原有载荷的基础上提高了一倍；例外采用两点的固定方式，在完全避免所述滚珠丝杆31失效的情况下，能够有效配合现有技术中的数控系统和补偿机构的完成精准补偿。
结合图4和图5所示，本实施方式中，所述锁紧件41和所述立板11的内侧壁之间设置有套设在所述拉杆上的锥面件42和球面件43，其中所述锥面件42的锥面和球面件43的球面抵接设置，其中所述锥面件42位于所述球面件43的上方。在两组所述传动组件3运行的过程中，由于机械配合等误差可能会造成所述立板11的两侧高度有轻微的不一致，上述的球面件43能够相对所述锥面件42转动的动作能够解决上述的问题，进而可以避免所述滚珠丝杠发生偏载，降低了所述立板11与所述机架的安装难度，使得设置在所述立板11上的折弯部12与所述工作台之间具有较好的平行度，以精准地对待折弯料件进行折弯工序。
其中所述锥面件42和所述立板11的内侧壁之间还设置有套设在所述拉杆上的弹性件。 所述弹性件包括套设在所述拉杆上且与所述立板11的内侧壁抵接的弹簧垫圈、位于所述弹簧垫圈与所述锥面件42之间的碟形弹簧。所述立板11的工作环境需要其在竖直方向上进行快速的往复运动，上述柔性的设置方式，一方面能够在向上提起所述立板11时能够起到缓冲作用，另一方面能够结合上述的锥面件42和球面件43配合使用，降低所述立板11与所述螺母座32之间的加工难度和成本。
本实施方式中，所述第二带轮件24与所述传动组件3之间设置有轴承件。具体地，所述轴承件位于所述第二带轮件24的下方、且穿设在所述传动组件3上。所述轴承件包括固定设置在所述机架上的轴承座26、位于所述轴承座26上的多个推力角接触球轴承27、以及用于对所述推力角接触球轴承27进行限位的压盖25。上述的设置方式，所述轴承件具有较大的接触角，因此受离心力影响小，更加适用于本申请中的高速旋转的滚珠丝杆31。
结合图1和图3所示，本申请的折弯机还包括沿竖直方向设置在所述立板11外部的导轨6，所述导轨6上滑动设置有能够与所述立板11固定连接的导向件7。上述的所述导轨6相对所述机架的位置固定不变，以能够在所述立板11沿上下方向往复运动过程中起到导向的作用。
本发明中应用了具体实施例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种多驱组合式折弯机，其特征在于，包括折弯组件、驱动组件和传动组件，所述传动组件的两端分别与所述折弯组件和驱动组件连接，以使得所述传动组件在驱动组件的作用下能够带动所述折弯组件朝向待折弯料件移动；
    所述传动组件包括传动件、设置在所述传动件上的安装件，所述安装件上设置有一端与其固定连接的连接件，所述连接件上套设有能够相对其转动的所述折弯组件，所述安装件和所述折弯组件之间设置有套设在所述连接件上并能相对所述连接件转动的转动件，所述折弯组件能够与所述转动件抵接，以在外力作用下能够相对所述连接件转动。
  2. 如权利要求1所述的多驱组合式折弯机，其特征在于，所述传动件的数量为多个，多个所述传动件关于所述折弯组件对称设置且位于所述折弯组件的内、外两侧。
  3. 如权利要求1所述的多驱组合式折弯机，其特征在于，所述连接件包括固定端与所述安装件螺纹锁紧、游离端穿设过所述折弯组件的拉杆，所述转动件包括固定设置在所述安装件上且与所述拉杆的外侧壁具有预设间隙的推力关节轴承。
  4. 如权利要求3所述的多驱组合式折弯机，其特征在于，所述折弯组件包括立板、设置在所述立板上的折弯部，所述立板上开设有沿其内外侧方向延伸的安装缺口，所述拉杆的游离端能够在沿折弯组件的移动方向穿设部分所述立板结构后延伸至所述安装缺口内，所述拉杆的游离端上设置有能够与所述立板的内侧壁抵接的锁紧件。
  5. 如权利要求4所述的多驱组合式折弯机，其特征在于，所述锁紧件和所述立板的内侧壁之间还设置有套设在所述拉杆上的锥面件和球面件，其中所述锥面件的锥面和球面件的球面抵接设置。
  6. 如权利要求4所述的多驱组合式折弯机，其特征在于，还包括沿所述折弯组件移动方向延伸的导轨，所述导轨上滑动设置有能够与所述立板固定连接的导向件。
  7. 如权利要求1所述的多驱组合式折弯机，其特征在于，所述传动件包括沿所述折弯组件移动方向延伸的滚珠丝杆，所述安装件包括螺纹穿设在两个所述滚珠丝杆上的螺母座，其中每个所述滚珠丝杆分别对应一个所述驱动组件。
  8. 如权利要求7所述的多驱组合式折弯机，其特征在于，所述螺母座上开设有多个延伸至所述滚珠丝杆处的润滑通孔，所述润滑通孔上设置有油嘴。
  9. 如权利要求7所述的多驱组合式折弯机，其特征在于，所述驱动组件包括伺服电机、第一带轮件、同步带件和第二带轮件，其中所述伺服电机的输出端与所述第一带轮件驱动连接，所述第二带轮件与所述传动组件驱动连接，所述同步带设置在所述第一带轮件和第二带轮件上，以将所述伺服电机的驱动力传递至所述传动组件上。
  10. 如权利要求9所述的多驱组合式折弯机，其特征在于，所述第二带轮件与所述传动组件之间设置有穿设在所述滚珠丝杆上的轴承件，所述轴承件包括压盖、轴承座以及多个推力角接触球轴承。
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