WO2019061695A1 - 一种折弯机进刀深度调节机构及折弯机 - Google Patents

一种折弯机进刀深度调节机构及折弯机 Download PDF

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Publication number
WO2019061695A1
WO2019061695A1 PCT/CN2017/110028 CN2017110028W WO2019061695A1 WO 2019061695 A1 WO2019061695 A1 WO 2019061695A1 CN 2017110028 W CN2017110028 W CN 2017110028W WO 2019061695 A1 WO2019061695 A1 WO 2019061695A1
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WO
WIPO (PCT)
Prior art keywords
bending machine
screw
rotating cover
adjusting
adjusting nut
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PCT/CN2017/110028
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English (en)
French (fr)
Inventor
廖研
邓锋华
刘惠珍
黄军辉
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广船国际有限公司
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Application filed by 广船国际有限公司 filed Critical 广船国际有限公司
Publication of WO2019061695A1 publication Critical patent/WO2019061695A1/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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/22—Auxiliary equipment, e.g. positioning devices

Definitions

  • the invention relates to the technical field of a bending machine, in particular to a bending machine depth adjustment mechanism and a bending machine comprising the same.
  • the function of the bending depth adjustment mechanism of the bending machine is to adjust the depth limit of the downward direction of the slider, adjust the lifting position of the limit nut, and control the depth of the bending machine, so that the workpieces of different angles can be bent.
  • the prior art discloses a bending machine feed depth adjustment mechanism.
  • the bending machine feed depth adjustment mechanism mainly comprises a hand wheel 1, a U-shaped fork 2, a stroke adjusting screw 3, and a limit nut. 4, the chain 5, the direction gear box 6 and the rotating cover 7 and other components.
  • the gear box 5 When the hand wheel 1 is rotated, the gear box 5 is driven to rotate the gear unit 6 to rotate, thereby driving the rotating cover 7 to rotate, because the pin of the limiting nut 4 is caught in the sliding groove 71 of the rotating cover 7, thereby The limit nut 4 is caused to move relative to the rotating cover 7, and the stroke adjusting screw 3 is not fixed due to being fixed on the slider, so that the limiting nut 4 can be rotated to the stroke adjusting screw 3 according to the adjustment amount of the hand wheel 1.
  • the corresponding height position when the slider moves downward, after the limit nut 4 is pressed to the stopper 8 of the frame, the slider stops to realize the infeed depth adjustment function of the bending process.
  • a bending machine feed depth adjustment mechanism including:
  • a rotating cover having a sealing end and an open end
  • Adjusting a nut the adjusting nut is installed in the rotating cover and screwed with the screw, the rotating cover can drive the adjusting nut to rotate around the screw, and the adjusting nut is arranged along the screw mobile;
  • the driving assembly being coupled to the sealing end of the rotating cover to drive the rotating cover to rotate;
  • a fixing protrusion is disposed near one end of the adjusting nut, and an end of the adjusting block adjacent to the adjusting nut is provided with a limiting groove matching the size of the limiting protrusion.
  • the limiting protrusion and the limiting groove are spherical surfaces.
  • a compensation pad is disposed at one end of the stopper near the adjusting nut, and the compensation gasket ring is disposed on the outer circumference of the screw, and the compensation gasket faces the One end of the adjusting nut is provided with the limiting groove.
  • the side wall of the rotating cover is spaced apart from the plurality of adjusting long grooves, and the length of the adjusting long groove extends along the axial direction of the rotating cover, the adjusting screw
  • the female is coupled to the adjustment slot by a pin, and the pin is movable along the length of the adjustment slot.
  • the top end of the adjusting nut is connected to the sealing end of the rotating cover by a plurality of telescopic sleeves, the sleeve and the screw, the rotating cover There is a gap between the side walls.
  • a screw is disposed near one end of the sealing end of the rotating cover, the cover body has a diameter larger than a diameter of the screw, and the cover body is Screw fixed connection.
  • the drive assembly includes a hand wheel and a reversing gear box, the hand wheel being coupled to a gear in the reversing gear box by a chain.
  • a bending machine including a frame and two infeed depth adjusting mechanisms spaced apart from the frame, the infeed depth adjusting mechanism being the infeed depth adjustment of the bending machine
  • the mechanism, the drive components of the two infeed depth adjustment mechanisms are connected by a connecting rod.
  • the bending machine further includes a clutch disposed on the connecting rod to selectively disconnect the transmission connection between the two of the driving assemblies.
  • the bending machine further includes a cylinder connected to the slider for controlling the slider to move up and down.
  • Non-planar fitting can avoid the occurrence of eccentric load between the adjusting nut and the stopper, prevent the screw from being subjected to non-axial force and affect its service life, and reduce the failure rate of the bending machine adjustment mechanism.
  • the present invention requires less processing precision for the frame.
  • FIG. 1 is a schematic structural view of a conventional bending machine feed depth adjusting mechanism.
  • FIG. 2 is a schematic structural view of a bending depth adjustment mechanism of a bending machine according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a bending machine according to an embodiment of the present invention.
  • the term "fixed” is to be understood broadly, unless it is specifically defined and defined, for example, it may be a fixed connection, a detachable connection, or an integral; it may be a mechanical connection. Connected, it can also be an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two components or the interaction of two components.
  • an intermediate medium which can be the internal communication of two components or the interaction of two components.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature "on” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
  • the first feature "under” the second feature includes the first feature directly below and below the second feature, or merely indicating that the first feature level is less than the second feature.
  • an embodiment of the present invention provides a bending machine feed depth adjusting mechanism, including a rotating cover 10, a stopper 20, a screw 30, a connecting portion 40, an adjusting nut 50, and a driving assembly, and the rotating cover 10 has a sealing end and an open end, the stopper 20 is fixed on the frame of the bending machine, and facing the open end of the rotating cover 10, one end of the screw 30 is inserted into the rotating cover 10, and the other end is The open end of the rotating cover 10 extends outside the rotating cover 10, and the screw 30 is connected to the slider 500 of the bending machine through the stopper 20; the adjusting nut 50 is installed in the rotating cover 10 and threaded with the screw 30 Rotating, the rotating cover 10 can rotate the adjusting nut 50 around the screw 30, and move the adjusting nut 50 up and down along the screw 30.
  • the driving assembly and the sealing end of the rotating cover 10 Connecting, the rotation of the rotating cover 10 is driven; the adjusting nut 50 is disposed near one end of the stopper 20 with a finite convex portion 51, and the end of the blocking member 20 adjacent to the adjusting nut 50 is disposed with the limit
  • the size of the convex portion 51 matches the limit groove 21.
  • the rotation of the rotating cover 10 is driven by the driving assembly to drive the adjusting nut 50 to rotate. Since the adjusting nut 50 is screwed with the screw 30, the adjusting nut 50 can be moved along the length of the screw 30 during the rotation, and the height position of the adjusting nut 50 can be adjusted.
  • the depth of the bending machine can be adjusted to control the change of the bending angle of the workpiece.
  • the limiting protrusion 51 of the adjusting nut 50 is non-planarly engaged with the limiting groove 21 of the stopper 20, so that the eccentric load between the adjusting nut 50 and the stopper 20 can be avoided, and the screw 30 is prevented from being subjected to the non-plane.
  • the axial force affects its service life and reduces the failure rate of the bending machine adjustment mechanism.
  • the matching structure design of the limiting groove 21 and the limiting convex portion 51 can reduce the processing precision requirement for the frame.
  • the adjusting nut 50 is provided with a limiting groove near one end of the stopper 20, and one end of the stopper 20 near the adjusting nut 50 is provided with a limiting protrusion matching the size of the limiting groove. It is also possible to avoid the occurrence of eccentric load between the adjusting nut 50 and the stopper 20, prevent the screw 30 from being subjected to non-axial force to affect its service life, and reduce the failure rate of the bending machine adjusting mechanism.
  • the connecting portion 40 is a U-shaped fork that is connected to a screw hole formed in the slider 500 by a bolt.
  • the limiting protrusion 51 and the limiting groove 21 are spherical surfaces, that is, the limiting protrusion 51 and the limiting groove 21 are in spherical contact, and the force of the screw 30 can be corrected to be always The life of the screw 30 is increased along the axial direction of the screw 30.
  • the shape of the limiting convex portion 51 and the limiting groove 21 is not limited to the spherical surface, and the limiting groove 21 can also be designed as a stepped groove, and the limiting convex portion 51 is designed to be the same with the stepped groove.
  • an inverted arc may be provided at the corner of the step so that the limiting protrusion 51 is smoothly inserted into the limiting groove 21 to correct the non-axial force received by the screw 30.
  • the bending machine feed depth adjusting mechanism further includes a gasket, and the gasket is located between the limiting convex portion 51 and the limiting groove 21, specifically, the shape of the gasket Matching with the shape of the limiting groove 21, it can be disposed on the limiting protrusion 51 or in the limiting groove 21, which can further improve the service life of the screw 30.
  • a compensation pad 70 is disposed at one end of the adjusting nut 50 near the adjusting nut 50.
  • the compensation pad 70 is made of ordinary steel, and the compensation pad 70 is disposed on the screw 30.
  • the outer circumference of the compensating washer 70 is matched with the screw gap, and the compensating washer 70 faces the one of the adjusting nut 50.
  • the limiting groove 21 is disposed at the end, and the limiting groove 21 is opened on the compensation pad 70, and the limiting groove 21 is not required to be formed on the stopper 20, and the replacement of the gasket 70 is facilitated.
  • the side wall of the rotating cover 10 is spaced apart from the plurality of adjusting long slots 11 , the length of the adjusting long slot 11 extends along the axial direction of the rotating cover 10 , and the adjusting nut 50 passes through the pin shaft 52 is connected to the adjustment slot 11 .
  • one end of the pin 52 is connected to the adjusting nut, and the other end extends through the adjusting slot 52 to the outside of the rotating cover 10 , and the gap between the adjusting nut 50 and the inner side wall of the rotating cover 10 is adjusted.
  • the pin 52 can move along the longitudinal direction of the adjusting long groove 11. As shown in FIG. 1 and FIG.
  • the adjustment slot 11 in this embodiment is not limited to two, and may be three, four or more, and the specific number depends on the size of the adjustment nut 50.
  • the top end of the adjusting nut 50 is coupled to the sealing end of the rotating cover 10 by a plurality of telescopic sleeves, the sleeve and the screw 30, the side wall of the rotating cover 10 There is a gap (not shown), and the rotating cover 10 can also rotate the adjusting nut 50 and move along the length of the screw 30.
  • the sleeve rod can be freely stretched, and the maximum telescopic length is not less than the distance between the adjusting nut 50 and the stopper 20.
  • the telescopic length of the sleeve is determined by the position of the adjusting nut 50.
  • the end of the screw 30 that opens into the sealing end of the rotating hood 10 is provided with a cover 80 having a diameter larger than the diameter of the screw 30, the cover 80 is fixedly connected to the screw 30.
  • the cover 80 is provided with a groove toward the screw 30.
  • the top end of the screw 30 is inserted into the groove, and is fixedly connected to the cover 80 by a plurality of screws arranged at intervals. There is a gap between the body 80 and the inner side wall of the rotating cover 10.
  • the drive assembly in this embodiment includes a hand wheel 61 and a redirecting gear box 62, the hand wheel 61 passing through the chain
  • the strip 63 is coupled to the gear in the direction changing gear box 62.
  • the driving assembly of the present embodiment is not limited to the cooperation of the hand wheel 61, the chain 63 and the direction changing gear box 62, and the motor may be directly connected to the direction changing gear box 62.
  • the hand wheel 61 is coupled to the chain 63 by a counter, and the height position of the adjusting nut 50 can be visually displayed by a counter to facilitate precise adjustment of the position of the adjusting nut 50 on the screw 30 by the hand wheel 61.
  • An embodiment of the present invention further provides a bending machine.
  • the bending machine includes a frame 100 and two infeed depth adjusting mechanisms 200 spaced apart from the frame 100.
  • the tool depth adjustment mechanism 200 is the bending machine feed depth adjustment mechanism according to any of the above embodiments, and the drive components of the two feed depth adjustment mechanisms 200 are connected by a connecting rod 300, that is, two feeds.
  • the depth adjustment mechanism 200 can adjust the depth of the feed through one of the drive assemblies.
  • One of the drive components does not need to be provided with a hand wheel and a chain, and the gearbox of the drive assembly is directly connected to the gearbox of the other drive component through the connecting rod 300 and simultaneously driven by the hand wheel of the other drive component.
  • the gearbox of the drive assembly is directly connected to the gearbox of the other drive component through the connecting rod 300 and simultaneously driven by the hand wheel of the other drive component.
  • the bending machine of the present embodiment further includes a clutch 400 disposed on the connecting rod 300 to selectively disconnect the transmission between the two driving assemblies. Specifically, through the pedal clutch 400, the transmission connection between the two reversing gear boxes can be disconnected. At this time, the reversing gear box connected thereto is driven by the hand wheel to drive the adjustment nut inside the rotating cover to rotate. It is actually necessary to separately adjust the height position of the adjusting nut.
  • the bending machine further includes a cylinder connected to the slider 500 (not shown) for controlling the slider 500 to move up and down.
  • the movable stroke (infeed depth) of the slider 500 is limited by the infeed depth adjustment mechanism, and then moved to the setting by the cylinder control slider 500. The position can control the angle of the workpiece.
  • the bending machine further includes an electro-hydraulic control system (not shown) for controlling the operation of each part of the bending machine.

Abstract

一种折弯机进刀深度调节机构，包括旋转罩（10）、挡块（20）、螺杆（30）、调节螺母（50）及驱动组件，旋转罩（10）具有封口端和开口端，挡块（20）固定于折弯机的机架上，螺杆（30）一端插入至旋转罩（10）内，另一端由旋转罩（10）的开口端延伸至旋转罩（10）外，螺杆（30）穿过挡块（20）与折弯机的滑块连接；调节螺母（50）安装于旋转罩（10）内并与螺杆（30）螺纹旋接，旋转罩可带动调节螺母绕螺杆转动，并使调节螺母沿螺杆上下移动；驱动组件与旋转罩的封口端连接；调节螺母（50）靠近挡块（20）的一端设置有限位凸部（51），挡块（20）靠近调节螺母（50）的一端设置有与限位凸部（51）的尺寸相匹配的限位凹槽（21）。还公开了一种折弯机。该折弯机进刀深度调节机构可以避免调节螺母与挡块之间出现偏载情况，防止螺杆受到非轴向力而影响其使用寿命。

Description

一种折弯机进刀深度调节机构及折弯机 技术领域
本发明涉及折弯机技术领域，具体涉及一种折弯机进刀深度调节机构及包含其的折弯机。
背景技术
折弯机进刀深度调节机构的作用是调节滑块下行的深度限位，调节限位螺母的升降位置，可控制折弯机的进刀深度，从而可以折弯出不同角度的工件。
现有技术公开了一种折弯机进刀深度调节机构，如图1所示，该折弯机进刀深度调节机构主要由手轮1、U型叉2、冲程调节螺杆3、限位螺母4、链条5、变向齿轮箱6和旋转罩7等零部件组成。当转动手轮1时，通过链条5传动，使变向齿轮箱6转动，进而带动旋转罩7发生旋转运动，由于限位螺母4的卡销卡在旋转罩7的滑移槽71内，从而使限位螺母4与旋转罩7产生相对运动，而冲程调节螺杆3由于固定在滑块上，不会发生转动，从而使限位螺母4可根据手轮1的调节量旋转到冲程调节螺杆3的相应高度位置，当滑块往下运动时，限位螺母4压到机架的挡块8后，滑块停止动作，实现折弯过程的进刀深度调节功能。
现有的折弯机进刀深度调节机构中，限位螺母4与挡块8的配合为平面贴合，中间没有过渡补偿，为避免限位螺母4与挡块8接触后出现偏载情况，对机架的加工要求很高，需严格保证加工精度，否则会严重影响冲程调节螺杆3的受力情况，从而降低冲程调节螺杆3的使用寿命。
发明内容
本发明的目的在于提供一种使用寿命长的折弯机进刀深度调节机构及折弯机。
为达此目的，本发明采用以下技术方案：
一方面，提供一种折弯机进刀深度调节机构，包括：
旋转罩，所述旋转罩具有封口端和开口端；
挡块，所述挡块固定于折弯机的机架上，且正对所述旋转罩的开口端；
螺杆，所述螺杆一端插入至所述旋转罩内，另一端由所述旋转罩的开口端延伸至所述旋转罩外，所述螺杆穿过所述挡块与所述折弯机的滑块连接；
调节螺母，所述调节螺母安装于所述旋转罩内并与所述螺杆螺纹旋接，所述旋转罩可带动所述调节螺母绕所述螺杆转动，并使所述调节螺母沿所述螺杆上下移动；
驱动组件，所述驱动组件与所述旋转罩的封口端连接，可驱动所述旋转罩转动；
所述调节螺母靠近所述挡块的一端设置有限位凸部，所述挡块靠近所述调节螺母的一端设置有与所述限位凸部的尺寸相匹配的限位凹槽。
作为折弯机进刀深度调节机构的优选方案，所述限位凸部和所述限位凹槽均为球形面。
作为折弯机进刀深度调节机构的优选方案，所述挡块靠近所述调节螺母的一端设置有补偿垫片，所述补偿垫片环设于所述螺杆外周，所述补偿垫片朝向所述调节螺母的一端设置有所述限位凹槽。
作为折弯机进刀深度调节机构的优选方案，所述旋转罩的侧壁上间隔开设有若干调节长槽，所述调节长槽的长度沿所述旋转罩的轴向延伸，所述调节螺 母通过销轴与所述调节长槽连接，所述销轴可沿所述调节长槽的长度方向移动。
作为折弯机进刀深度调节机构的优选方案，所述调节螺母的顶端通过若干可伸缩的套杆与所述旋转罩的封口端连接，所述套杆与所述螺杆、所述旋转罩的侧壁之间分别存在间隙。
作为折弯机进刀深度调节机构的优选方案，所述螺杆靠近所述旋转罩的封口端的一端设置有盖体，所述盖体的直径大于所述螺杆的直径，所述盖体与所述螺杆固定连接。
作为折弯机进刀深度调节机构的优选方案，所述驱动组件包括手轮和变向齿轮箱，所述手轮通过链条与所述变向齿轮箱中的齿轮传动连接。
另一方面，提供一种折弯机，包括机架和两个间隔设置于所述机架上的进刀深度调节机构，所述进刀深度调节机构为所述的折弯机进刀深度调节机构，两个所述进刀深度调节机构的驱动组件之间通过连接杆传动连接。
作为折弯机的优选方案，该折弯机还包括离合器，所述离合器设置于所述连接杆上，可选择性断开所述两个所述驱动组件之间的传动连接。
作为折弯机的优选方案，该折弯机还包括油缸，所述油缸与所述滑块连接，用以控制所述滑块上下移动。
本发明的有益效果：本发明的折弯机进刀深度调节机构中，当调节螺母移动至与挡块抵接的下止点时，调节螺母的限位凸部与挡块的限位凹槽非平面贴合，可以避免调节螺母与挡块之间出现偏载情况，防止螺杆受到非轴向力而影响其使用寿命，降低折弯机调节机构的故障率。与现有技术相比，本发明对机架的加工精度要求较低。
附图说明
图1为现有的折弯机进刀深度调节机构的结构示意图。
图2为本发明实施例的折弯机进刀深度调节机构的结构示意图。
图3为本发明实施例的折弯机的结构示意图。
图中：
图1中：
1、手轮；2、U型叉；3、冲程调节螺杆；4、限位螺母；5、链条；6、变向齿轮箱；7、旋转罩；71、滑移槽；8、挡块。
图2、3中：
10、旋转罩；11、调节长槽；20、挡块；21、限位凹槽；30、螺杆；40、连接部；50、调节螺母；51、限位凸部；52、销轴；61、手轮；62、变向齿轮箱；63、链条；70、补偿垫片；80、盖体；
100、机架；200、进刀深度调节机构；300、连接杆；400、离合器；500、滑块。
具体实施方式
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。
在本发明的描述中，需要理解的是，术语“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，除非另有明确的规定和限定，术语“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连 接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个部件内部的连通或两个部件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征之“上”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征之“下”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
如图2所示，本发明的实施例提供一种折弯机进刀深度调节机构，包括旋转罩10、挡块20、螺杆30、连接部40、调节螺母50及驱动组件，所述旋转罩10具有封口端和开口端，所述挡块20固定于折弯机的机架上，且正对所述旋转罩10的开口端，所述螺杆30一端插入至旋转罩10内，另一端由旋转罩10的开口端延伸至旋转罩10外，螺杆30穿过挡块20与折弯机的滑块500连接；所述调节螺母50安装于所述旋转罩10内并与所述螺杆30螺纹旋接，所述旋转罩10可带动所述调节螺母50绕所述螺杆30转动，并使所述调节螺母50沿所述螺杆30上下移动，所述驱动组件与所述旋转罩10的封口端连接，可驱动所述旋转罩10转动；所述调节螺母50靠近所述挡块20的一端设置有限位凸部51，所述挡块20靠近所述调节螺母50的一端设置有与所述限位凸部51的尺寸相匹配的限位凹槽21。通过驱动组件驱动旋转罩10转动，从而带动调节螺母50转动，由于调节螺母50与螺杆30螺纹配合，调节螺母50转动过程中可沿螺杆30的长度方向移动，通过调节螺母50的高度位置的调节，可以调节折弯机的进刀深度，进而能够控制工件弯角的变化。当调节螺母50移动至与挡块20抵接的 下止点时，调节螺母50的限位凸部51与挡块20的限位凹槽21非平面贴合，可以避免调节螺母50与挡块20之间出现偏载情况，防止螺杆30受到非轴向力而影响其使用寿命，降低折弯机调节机构的故障率。本实施例中，限位凹槽21和限位凸部51的配合结构设计，可以降低对机架的加工精度要求。
在其他的实施例中，调节螺母50靠近挡块20的一端设置有限位凹槽，挡块20靠近调节螺母50的一端设置有与所述限位凹槽的尺寸相匹配的限位凸部。同样可以实现避免调节螺母50与挡块20之间出现偏载情况，防止螺杆30受到非轴向力而影响其使用寿命，降低折弯机调节机构的故障率。
其中，连接部40为U型叉，其通过螺栓与滑块500上开设的螺纹孔连接。
优选地，所述限位凸部51和所述限位凹槽21均为球形面，即限位凸部51和限位凹槽21为球形面接触，可以将螺杆30的受力纠正为始终沿螺杆30的轴向，提高螺杆30的使用寿命。本实施例中，限位凸部51和限位凹槽21的形状不限于球形面，限位凹槽21还可以设计为台阶型凹槽，限位凸部51设计为与该台阶型凹槽相配合的台阶型结构，进一步地，还可以在台阶的拐角处设置倒圆弧，以使限位凸部51顺利插入至限位凹槽21中，以纠正螺杆30受到的非轴向力。
在本发明的其中一实施例中，该折弯机进刀深度调节机构还包括垫片，该垫片位于限位凸部51与限位凹槽21之间，具体地，该垫片的形状与限位凹槽21的形状相匹配，可以设置在限位凸部51上或者限位凹槽21内，能进一步提高螺杆30的使用寿命。
在本发明的另一实施例中，所述挡块20靠近所述调节螺母50的一端设置有补偿垫片70，补偿垫片70为普通钢材质，补偿垫片70环设于所述螺杆30外周，补偿垫片70与螺杆间隙配合，所述补偿垫片70朝向所述调节螺母50的一 端设置有所述限位凹槽21，将限位凹槽21开设在补偿垫片70上，无需在挡块20上加工成型限位凹槽21，而且方便补偿垫片70的更换。
本实施例中，所述旋转罩10的侧壁上间隔开设有若干调节长槽11，所述调节长槽11的长度沿所述旋转罩10的轴向延伸，所述调节螺母50通过销轴52与所述调节长槽11连接，具体地，销轴52一端与调节螺母连接，另一端穿过该调节长槽52延伸至旋转罩10的外部，调节螺母50与旋转罩10的内侧壁间隙配合，在旋转罩10带动调节螺母50转动时，所述销轴52可沿所述调节长槽11的长度方向移动。其中，如图1、2所示，在旋转罩10的侧壁上均设有两个调节长槽11，与采用单个销轴52相比，调节螺母50的安装稳定性更高。当然，本实施例中的调节长槽11不限于为两个，也可以为三个、四个或者更多个，具体的数量依据调节螺母50的尺寸而定。
在其他实施例中，所述调节螺母50的顶端通过若干可伸缩的套杆与所述旋转罩10的封口端连接，所述套杆与所述螺杆30、所述旋转罩10的侧壁之间分别存在间隙(图中未示出)，同样可以实现旋转罩10带动调节螺母50转动并沿螺杆30的长度方向移动。其中，套杆可自由伸缩，其最大伸缩长度不小于调节螺母50与挡块20之间的距离，实际操作过程中，套杆的伸缩长度由调节螺母50的位置决定。
为了进一步避免螺杆30出现径向偏载情况，所述螺杆30开进旋转罩10的封口端的一端设置有盖体80，所述盖体80的直径大于所述螺杆30的直径，所述盖体80与所述螺杆30固定连接，具体地，盖体80上朝向螺杆30开设有凹槽，螺杆30的顶端插入至该凹槽内，并通过间隔设置的若干螺钉与盖体80固定连接，盖体80与旋转罩10的内侧壁之间具有间隙。
本实施例中的驱动组件包括手轮61和变向齿轮箱62，所述手轮61通过链 条63与所述变向齿轮箱62中的齿轮传动连接，手轮61转动时，通过链条63将手轮61的扭力传递至变向齿轮箱62，变向齿轮箱62驱动旋转罩10转动。本实施例的驱动组件不限于手轮61、链条63与变向齿轮箱62的配合，也可以直接采用电机与变向齿轮箱62连接。
优选地，手轮61通过一个计数器与链条63连接，调节螺母50的高度位置可以直观地通过计数器显示，方便通过手轮61精确调节该调节螺母50在螺杆30上的位置。
本发明的实施例还提供一种折弯机，如图3所示，该折弯机包括机架100和两个间隔设置于所述机架100上的进刀深度调节机构200，所述进刀深度调节机构200为上述任一实施例所述的折弯机进刀深度调节机构，两个所述进刀深度调节机构200的驱动组件之间通过连接杆300传动连接，即两个进刀深度调节机构200通过其中一个驱动组件即可进行进刀深度的调节。其中一个驱动组件不需要设置手轮和链条，该驱动组件的变向齿轮箱直接通过连接杆300与另一驱动组件的变向齿轮箱连接，并通过另一驱动组件的手轮同时进行驱动，以实现同时调节两个进刀深度调节机构的调节螺母的位置。
优选地，本实施例的折弯机还包括离合器400，所述离合器400设置于所述连接杆300上，可选择性断开所述两个所述驱动组件之间的传动连接。具体地，通过脚踏离合器400，可以断开两个变向齿轮箱之间的传动连接，此时通过手轮驱动与其连接的变向齿轮箱，带动旋转罩内部的调节螺母转动，以实现根据实际需要对该调节螺母的高度位置进行单独调节。
本实施例中，折弯机还包括油缸，所述油缸与所述滑块500连接(图中未示出)，用以控制所述滑块500上下移动。通过进刀深度调节机构对滑块500的可移动行程(进刀深度)进行限定，然后通过油缸控制滑块500移动至设定 位置，即可控制工件弯角大小。
本实施例中，折弯机还包括电液控制系统(图中未示出)，可以对折弯机各个部分的运行进行控制。
需要声明的是，上述具体实施方式仅仅为本发明的较佳实施例及所运用技术原理，在本发明所公开的技术范围内，任何熟悉本技术领域的技术人员所容易想到的变化或替换，都应涵盖在本发明的保护范围内。
以上通过具体的实施例对本发明进行了说明，但本发明并不限于这些具体的实施例。本领域技术人员应该明白，还可以对本发明做各种修改、等同替换、变化等等。但是，这些变换只要未背离本发明的精神，都应在本发明的保护范围之内。另外，本申请说明书和权利要求书所使用的一些术语并不是限制，仅仅是为了便于描述。此外，以上多处的“一个实施例”、“另一个实施例”等表示不同的实施例，当然也可以将其全部或部分结合在一个实施例中。

Claims (10)

  1. 一种折弯机进刀深度调节机构，其特征在于，包括：
    旋转罩，所述旋转罩具有封口端和开口端；
    挡块，所述挡块固定于折弯机的机架上，且正对所述旋转罩的开口端；
    螺杆，所述螺杆一端插入至所述旋转罩内，另一端由所述旋转罩的开口端延伸至所述旋转罩外，所述螺杆穿过所述挡块与所述折弯机的滑块连接；
    调节螺母，所述调节螺母安装于所述旋转罩内并与所述螺杆螺纹旋接，所述旋转罩可带动所述调节螺母绕所述螺杆转动，并使所述调节螺母沿所述螺杆上下移动；
    驱动组件，所述驱动组件与所述旋转罩的封口端连接，可驱动所述旋转罩转动；
    所述调节螺母靠近所述挡块的一端设置有限位凸部，所述挡块靠近所述调节螺母的一端设置有与所述限位凸部的尺寸相匹配的限位凹槽。
  2. 根据权利要求1所述的折弯机进刀深度调节机构，其特征在于，所述限位凸部和所述限位凹槽均为球形面。
  3. 根据权利要求2所述的折弯机进刀深度调节机构，其特征在于，所述挡块靠近所述调节螺母的一端设置有补偿垫片，所述补偿垫片环设于所述螺杆外周，所述补偿垫片朝向所述调节螺母的一端设置有所述限位凹槽。
  4. 根据权利要求1所述的折弯机进刀深度调节机构，其特征在于，所述旋转罩的侧壁上间隔开设有若干调节长槽，所述调节长槽的长度沿所述旋转罩的轴向延伸，所述调节螺母通过销轴与所述调节长槽连接，所述销轴可沿所述调节长槽的长度方向移动。
  5. 根据权利要求1所述的折弯机进刀深度调节机构，其特征在于，所述调节螺母的顶端通过若干可伸缩的套杆与所述旋转罩的封口端连接，所述套杆与 所述螺杆、所述旋转罩的侧壁之间分别存在间隙。
  6. 根据权利要求1所述的折弯机进刀深度调节机构，其特征在于，所述螺杆靠近所述旋转罩的封口端的一端设置有盖体，所述盖体的直径大于所述螺杆的直径，所述盖体与所述螺杆固定连接。
  7. 根据权利要求1所述的折弯机进刀深度调节机构，其特征在于，所述驱动组件包括手轮和变向齿轮箱，所述手轮通过链条与所述变向齿轮箱中的齿轮传动连接。
  8. 一种折弯机，包括机架和两个间隔设置于所述机架上的进刀深度调节机构，其特征在于，所述进刀深度调节机构为权利要求1至7任一项所述的折弯机进刀深度调节机构，两个所述进刀深度调节机构的驱动组件之间通过连接杆传动连接。
  9. 根据权利要求8所述的折弯机，其特征在于，还包括离合器，所述离合器设置于所述连接杆上，可选择性断开所述两个所述驱动组件之间的传动连接。
  10. 根据权利要求8所述的折弯机，其特征在于，还包括油缸，所述油缸与所述滑块连接，用以控制所述滑块上下移动。
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