WO2020043158A1 - 传输系统和用于传输系统的挡停器 - Google Patents

传输系统和用于传输系统的挡停器 Download PDF

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Publication number
WO2020043158A1
WO2020043158A1 PCT/CN2019/103261 CN2019103261W WO2020043158A1 WO 2020043158 A1 WO2020043158 A1 WO 2020043158A1 CN 2019103261 W CN2019103261 W CN 2019103261W WO 2020043158 A1 WO2020043158 A1 WO 2020043158A1
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WIPO (PCT)
Prior art keywords
stopper
piston assembly
transmission system
core
tray
Prior art date
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PCT/CN2019/103261
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English (en)
French (fr)
Inventor
圭娜·T
高林弟
路德维希·P
章淑锳
陈磊
杨圣晖
郑文杰
Original Assignee
博世力士乐（常州）有限公司
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Publication date
Application filed by 博世力士乐（常州）有限公司 filed Critical 博世力士乐（常州）有限公司
Priority to EP19856229.0A priority Critical patent/EP3858767B1/en
Publication of WO2020043158A1 publication Critical patent/WO2020043158A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/88—Separating or stopping elements, e.g. fingers
    • B65G47/8807—Separating or stopping elements, e.g. fingers with one stop
    • B65G47/8869—Separating or stopping elements, e.g. fingers with one stop stopping or lifting all articles from a conveyor

Definitions

  • the present application relates to the technical field of automatic processing and transmission, and in particular, to a transmission system and a stopper for the transmission system.
  • the transfer system for transferring workpieces plays an irreplaceable role.
  • transport systems are often used for operation.
  • a pallet carrying a workpiece travels along a track of the transfer system.
  • a blocking device to keep the workpiece there for operation.
  • the traditional stop device has limited stop stroke adjustment, complicated structure, and expensive price, which causes the cost of the entire transmission system to increase.
  • the embodiments of the present application are directed to provide an improved transmission system and a stopper thereof, which can stop a moving tray at a specified position in the transmission system in a damping manner. on.
  • the stopper and the transmission system according to the present application have the advantages of simple structure, high working efficiency, stepless adjustment and buffering, and safe and accurate operation.
  • a stopper for a transmission system characterized in that the stopper includes: a base; and a first piston assembly that is assembled on the base
  • the first piston assembly includes a barrel portion including a vibration damping cavity having a pressure medium in the vibration damping cavity; and a first core portion provided in the barrel portion, the first A core portion has a first movement direction with respect to the base, and the first core portion includes a rod portion and a stop portion that can reciprocate in the vibration damping cavity along the first movement direction.
  • the portion is located at the free end of the rod portion, wherein the first piston assembly has a second direction of movement perpendicular to the first direction of movement relative to the base.
  • opening portions are respectively provided on two opposite side surfaces of the cylindrical portion, and convex portions adapted to the opening portions are provided on two opposite side surfaces of the first core portion, respectively.
  • the opening portion on each side of the cylindrical portion includes a wide opening portion away from the stop portion and a narrow opening portion near the stop portion; each of the first core portion
  • the raised portions on each side include a wide raised portion away from the stopping portion and a narrow raised portion near the stopping portion; and the wide opening portion is adapted to the wide raised portion, and The narrow opening portion is adapted to the narrow convex portion.
  • the first core has a first stop position in the first movement direction when it initially contacts a tray moving in the transport system, and is pushed by the tray A second stop position reached in a damping manner against the inner wall of the barrel in the vibration damping chamber; and in the first stop position, the wide projection of the first core part is pushed against To the narrow opening of the cylindrical portion.
  • the stopper further includes: a second piston assembly assembled in the base and coupled with the first piston assembly, and the second piston assembly is configured to Moving in the second moving direction to drive the first piston assembly to move in the second moving direction, so that the first core portion has a movement out of the transmission by moving downward in the second direction The lowered position of the moving path of the tray of the system and the raised position of the moving path of the tray returned by moving upward in the second direction.
  • the second piston assembly of the stopper includes: a second core portion that is coupled to the barrel portion of the first piston assembly; and a screw that extends into the second core portion.
  • a first cavity for fixing the second core; and a travel aid coupled to the second core, the travel assist configured to apply a force to the second core to The second piston assembly is caused to drive the first piston assembly upwards so that the first core returns to a raised position located in a movement path of a tray of the transport system.
  • the cylindrical portion of the first piston assembly further includes a hollow rod portion extending parallel to the second moving direction, the hollow rod portion has a groove, and the base has a housing for receiving The slot in which the hollow rod portion moves; and the second core portion has a connecting portion adapted to the groove.
  • the second piston assembly of the stopper includes a second cavity, and the base is provided with a fluid connection with both the vibration damping cavity and the second cavity. pipeline.
  • the first piston assembly further includes an adjusting member passing through the pipe of the barrel and the base, and the adjusting member is configured to move in the pipe to reduce or widen.
  • the connection between the pipe and the vibration damping cavity, so that the damping of the movement of the first core in the vibration damping cavity has different magnitudes.
  • the travel aid of the second piston assembly of the stopper comprises at least one spring element.
  • the pressure medium is a gaseous pressure medium
  • the first core portion is L-shaped, and is formed by plastic or aluminum molding.
  • the present application provides, in another aspect thereof, a transmission system including: a transmission track; and a tray adapted to the transmission track and capable of moving along the transmission track, the tray being used for loading on A workpiece to be operated in the transfer system; wherein the transfer system further includes a stopper for the transfer system as described above, which is attached to the transfer track.
  • the transmission system further includes a control valve configured to control a time when the pressure medium is supplied to the stopper and when the pressure medium is stopped.
  • a single-piece barrel and a single-piece first core are used to implement the first piston assembly, which reduces the number of components, has a simple and flexible structure, high accuracy, and good safety. Stoppers and transmission systems with optimized stoppers.
  • FIG. 1 is a schematic diagram of a transmission system according to a feasible implementation manner of the present application
  • FIG. 2 is a schematic structural diagram of a stopper of the transmission system in FIG. 1;
  • FIGS. 3A-3E are schematic diagrams of a stopping process of a stopper according to a feasible embodiment of the present application, wherein FIGS. 3A-3E are schematic diagrams of five states in the entire stopping process;
  • FIG. 4 is a schematic perspective view of a partial structure of a stopper according to a feasible embodiment of the present application.
  • the present application relates generally to a conveying system for conveying a workpiece, which has a stopper.
  • the workpiece is loaded on a tray capable of traveling on the track of the transfer system, and the stopper can stop the tray traveling in the transfer system in a damping manner.
  • the transmission system according to the present application has flexible planning, simple structure, and convenient operation.
  • FIG. 1 schematically shows a transport system 10 according to a possible embodiment of the present application, which comprises a transport track 1, a tray 2 and a stop 4.
  • FIG. 2 schematically illustrates a structure diagram of the stopper 4 of the transmission system 10 in FIG. 1.
  • the transport system 10 may include one or more trays 2.
  • the tray 2 is used to carry a workpiece, and is carried along the track 1 by the track 1 of the conveying system 10, for example, along the L direction (the direction of the arrow in FIG. 1).
  • the stopper 4 is fixed on the track 1, for example, by being bolted through the hole 43 of the stopper 4. It should be understood that the fixed position of the stopper 4 on the track 1 can be set as required. That is, the attachment position of the stopper 4 on the track 1 can be flexibly arranged.
  • the stopper 4 is initially provided in the movement path of the tray 2 to stop the tray 2 traveling in the L direction in a damping manner in order to perform operations such as machining on the workpiece loaded on the tray 2.
  • the stopper 4 moves out of the movement path of the tray 2 to release the tray 2 and after the tray 2 leaves, the stopper 4 returns to the initial position, that is, returns to the movement path of the tray 2 and wait Next stop.
  • FIG. 3A to FIG. 3E show five states during the stopping process of the stopper 4 according to a feasible embodiment of the present application.
  • FIG. 4 shows a partial structure of the stopper 4 according to a possible embodiment of the present application.
  • the stopper 4 includes a base 40 and a first piston assembly 41 and a second piston assembly 42 located in the base 40.
  • the first piston assembly 41 is coupled with the second piston assembly 42.
  • the first piston assembly 41 is used to stop the tray 2 in a horizontal direction (a first movement direction) in a damping manner.
  • the second piston assembly 42 is located below the first piston assembly 41 and is used to drive the first piston assembly 41 to move in a vertical direction (second moving direction) so as to move out of and return to the moving path of the tray 2.
  • the first piston assembly 41 has a cylindrical portion 411 and a first core portion 412.
  • the cylindrical portion 411 includes a vibration-damping cavity 411A.
  • the barrel 411 is a single molded piece.
  • the vibration damping chamber 411A has a pressure medium, for example, a gaseous pressure medium such as compressed air.
  • the first core portion 412 includes a lever portion 4120 and a vertical stop portion 4121.
  • the blocking portion 4121 is located at the free end of the lever portion 4120.
  • the first core 412 is an L-shaped single molded piece.
  • the first core portion 412 has a first moving direction with respect to the base 40, for example, a horizontal direction.
  • the rod portion 4120 reciprocates in the vibration damping cavity 411A along the first moving direction.
  • the rod portion 4120 moves against the inner wall of the barrel portion 411 in the vibration damping cavity 411A.
  • the first piston assembly 41 has a second moving direction, such as a vertical direction, perpendicular to the first moving direction with respect to the base 40.
  • the rod portion 4120 has a cavity 4120A in fluid communication with the vibration-damping cavity 411A, so as to reduce the weight of the rod portion 4120.
  • the first core portion 412 is located at the maximum extended position in the vibration damping cavity 411A, for example, the first stop position shown in FIG. 3A.
  • the stopping portion 4121 contacts the moving tray 2
  • the first core portion 421 moves in the vibration-damping cavity 411A while the tray 2 contacts the stopping portion 4121 and gradually decelerates until it stops. That is, the first core portion 412 stops the tray 2 in a damping manner.
  • the first core portion 412 moves from the first stop position immediately after contacting the tray 2 to the second stop when the tray 2 stops. position.
  • the first stop position is the initial position where the tray 2 and the stop portion 4121 have just come into contact
  • the second stop position is the final position where the tray 2 stops, that is, the first core portion 412 is in the vibration damping cavity 411A.
  • the maximum entry position is shown in Figure 3B.
  • the first core portion 412 of the stopper 4 is an integrally formed component, for example, formed by casting, and has a simple structure and low processing cost.
  • the stopper 4 stops the moving tray 2 in a damping manner. Neither the tray 2 nor the stopper 4 will cause a large impact, thereby reducing the damage of the tray 2 and the stopper 4 during the stoppage process. .
  • Openings are provided on both sides of the cylindrical portion 411. On both side surfaces of the first core portion 412, protrusions adapted to the openings are respectively formed.
  • a wide opening portion 4112 and a narrow opening portion 4114 are provided on one side surface of the barrel portion 411.
  • a wide convex portion 4122 and a narrow convex portion 4124 are provided on one side surface of the first core portion 412.
  • the wide opening portion 4112 is adapted to the wide convex portion 4112
  • the narrow opening portion 4114 is adapted to the narrow convex portion 4124.
  • the width of the wide opening portion 4112 is the same as the width of the wide convex portion 4122
  • the width of the narrow opening portion 4114 is the same as the width of the narrow convex portion 4124.
  • the same is true of the arrangement of the openings on the other opposite side of the first core portion 412 and the arrangement of the convex portions on the other opposite side of the first core portion 412.
  • the first core portion 412 performs a horizontal movement in the vibration damping cavity 411A like a drawer.
  • the wide convex portion 4124 pushes against the narrow opening portion 4114. That is, in the first stop position, the wide convex portion 4124 is caught at the connection between the wide opening portion 4112 and the narrow opening portion 4114.
  • the second piston assembly 42 includes a second core portion 421, a screw 422, and a stroke assist 423.
  • the second core portion 421 is coupled to the barrel portion 411 of the first piston assembly 41 so as to drive the first piston assembly 41 to move in a second moving direction (for example, a vertical direction).
  • the barrel portion 411 includes a hollow rod portion extending parallel to the second direction of motion and having a groove 4118.
  • the second core portion 421 has a connecting portion 4218 that is adapted to the groove 4118.
  • the groove 4118 is a cross-shaped groove
  • the connecting portion 4218 is a cross-shaped connecting portion 4218 adapted to the cross-shaped groove 4118.
  • the base 40 has a groove for receiving and moving the hollow rod portion.
  • the second core portion 421 is thereby attached to the first piston assembly 41.
  • the second core portion 421 has a cavity 421A.
  • the screw 422 extends into the cavity 421A, for example, the screw 422 is screw-coupled with the second core 421.
  • the screw 422 is used to fix the second core portion 421.
  • the stroke assisting member 423 is coupled to the second core portion 421.
  • the travel aid 421 applies a force to the second core portion 421 to cause the second piston assembly 42 to push the first piston assembly 41 upward, so that the first piston assembly 41 returns The movement path of the tray 2.
  • the travel aid 421 is in the form of at least one spring element. The spring element is compressed when the second piston assembly 42 moves downward, and then uses its rebound force to move the second piston assembly 42 upward to push the first piston assembly 41 to move upward.
  • the second piston assembly 42 includes a second cavity 42A.
  • a pipe 411B fluidly connected to both the vibration-damping cavity 411A and the second cavity 42A is opened on the base 40.
  • the duct 411B passes through the barrel 411 and the base 40.
  • the stopper 4 has a hole (not shown) for receiving a pressure medium, and when the stopper 4 needs to supply the pressure medium, the pressure medium is first provided to the cavity 42A of the second piston assembly 42 through the hole. The flow path of the pressure medium will be specifically described below.
  • the first piston assembly 41 further includes an adjustment member 413 passing through the pipe 411B.
  • the adjustment member 413 is an adjustment screw.
  • the adjusting member 413 moves up and down in the pipe 411B to reduce or widen the connection between the pipe 411B and the vibration damping cavity 411A, for example, to reduce or widen the communication cross-sectional area of the pipe 411B and the vibration damping cavity 411A, thereby changing the first core portion 412
  • the magnitude of the amount of damping of the motion in the vibration damping cavity 411A is an adjustment screw.
  • the first piston assembly 41 further includes an annular seal 413 for sealing.
  • the second piston assembly 42 also includes an annular seal 424 for sealing. It should be understood that the seals 413 and 424 may be in any suitable form suitable for sealing.
  • FIG. 3A to FIG. 3E schematically show the process of stopping the tray 2 by the stopper 4, respectively, wherein FIG. 3A shows the initial state, FIG. 3B shows the stop state, and FIG. 3C shows the release start state FIG. 3D shows the release end state, and FIG. 3E shows the return state.
  • FIG. 3A shows the initial state
  • FIG. 3B shows the stop state
  • FIG. 3C shows the release start state
  • FIG. 3D shows the release end state
  • FIG. 3E shows the return state.
  • the blocking portion 4121 is in a first blocking position. At this time, the piston barrel 411A has the maximum volume.
  • the stopper 4121 is located in the movement path of the tray 2 and awaits contact with the tray 2.
  • the stopper 4121 contacts the moving tray 2 and moves in a damping manner in the piston cylinder 411A toward a direction of gradually reducing the volume of the piston cylinder 411A until the volume of the piston cylinder 411A is almost zero. That is, the movement is stopped at the second stop position. At this time, the tray 2 is completely stopped to perform various processing operations on the workpiece on the tray 2.
  • a pressure medium is provided to the cavity 42A of the second piston assembly 42 through a hole (not shown) on the stopper 4.
  • the hole is located above the second core 421, and the pressure medium enters the cavity 42A from the top to the bottom through the hole.
  • the control signal for providing the pressure medium to the stopper 4 comes from an external control valve, such as a solenoid valve. After the cavity 42A of the second piston assembly 42 is supplied with a pressure medium, the second piston assembly 42 moves downward.
  • a channel communicating with both the cavity 42A and the conduit 411B is opened, so that the pressure medium enters the pipe 411B through the pipeline, and thus enters the piston barrel 411A.
  • the first core portion 412 moves in a direction of exiting the piston cylinder 411A, that is, in a direction of the first stop position.
  • the first core portion 412 is retracted to a position that maximizes the volume of the piston cylinder 411A, that is, a first stop position. At this time, the first core portion 412 is still below the movement path of the tray 2.
  • the supply of the pressure medium to the first core portion 412 is stopped.
  • the second piston assembly 42 moves upward under the action of the rebound force of the spring 423, and pushes the first piston assembly 41 to move upward, so that the first core portion 412 returns to the movement path of the tray 2.
  • the stopper 4 returns to the initial state and waits for the next stop.
  • the stopper according to the present application has a simple structure, low cost, and easy processing. Therefore, the transmission system with the stopper according to the present application has the advantages of high work efficiency, low cost, safe and accurate operation, and the like.

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Abstract

一种用于传输系统(10)的挡停器(4)及该传输系统（10），挡停器（4）包括基座(40)和组装于基座(40)中的第一活塞组件(41)，第一活塞组件(41)包括筒部(411)和第一芯部(412)，筒部(411)包括减震腔(411A)，在减震腔(411A)中具有压力介质，第一芯部(412)相对于基座(40)具有第一运动方向，并且第一芯部(412)包括杆部(4120)和位于杆部(4120)的自由末端的挡停部(4121)，第一活塞组件(41)相对于基座(40)具有垂直于第一运动方向的第二运动方向，该挡停器能以阻尼的方式挡停托盘。

Description

传输系统和用于传输系统的挡停器 技术领域
本申请涉及自动处理和传输技术领域，尤其涉及一种传输系统以及用于传输系统的挡停器。
背景技术
在自动处理和传输技术领域，用于传输工件的传输系统起着不可替代的作用。在工业生产和装配过程中，通常使用传输系统进行操作。在传输系统中，承载有工件的托盘沿着传输系统的轨道行进。当托盘运动至某加工或装配位置时，需要利用挡停装置使工件停留在该处以便操作。但是，传统的挡停装置的挡停行程调节有限、结构复杂、价格昂贵，由此造成整个传输系统的成本增加。
因此，需要一种改进的传输系统及其挡停装置来克服现有技术中问题。
发明内容
考虑到现有技术中的上述问题，本申请的实施例旨在提供一种改进的传输系统及其挡停器，其能够将运动中的托盘以阻尼的方式挡停在传输系统中的指定位置上。根据本申请的挡停器并且由此传输系统，结构简单，具有工作效率高、无级调节缓冲、操作安全准确等优点。
为此，根据本申请的一个方面，提供了一种用于传输系统的挡停器，其特征在于，所述挡停器包括：基座；以及第一活塞组件，其组装于所述基座中，所述第一活塞组件包括：筒部，所述筒部包括减振腔，在所述减振腔中具有压力介质；和设置在所述筒部中的第一芯部，所述第一芯部相对于所述基座具有第一运动方向，并且所述第一芯部包括在所述减振腔能够沿着第一运动方向往复运动的杆部和挡停部，所述挡停部位于所述杆部的自由末端，其中，所述第一活塞组件相对于所述基座具有垂直于所述第一运动方向的第二运动方向。
根据一种可行实施方式，在所述筒部的两相对侧面上分别具有开口部， 并且在所述第一芯部的两相对侧面上分别具有与所述开口部相适配的凸起部。
根据一种可行实施方式，所述筒部的每个侧面上的开口部包括远离所述挡停部的宽开口部和靠近所述挡停部的窄开口部；所述第一芯部的每个侧面上的凸起部包括远离所述挡停部的宽凸起部和靠近所述挡停部窄凸起部；并且所述宽开口部与所述宽凸起部相适配，所述窄开口部与所述窄凸起部相适配。
根据一种可行实施方式，所述第一芯部在所述第一运动方向上具有初始接触到在所述传输系统中运动的托盘时的第一挡停位置，以及在所述托盘的推动下以阻尼的方式在所述减振腔中贴着所述筒部的内壁移动而到达的第二挡停位置；并且在所述第一挡停位置，第一芯部的宽凸起部推抵于所述筒部的窄开口部。
根据一种可行实施方式，所述挡停器还包括：第二活塞组件，其组装于所述基座中并与所述第一活塞组件耦接，所述第二活塞组件被配置为在所述第二运动方向上运动以驱动所述第一活塞组件在所述第二运动方向上运动，以使得所述第一芯部具有通过在所述第二方向上向下移动而移出所述传输系统的托盘的运动路径的下降位置和通过在所述第二方向上向上移动而返回所述托盘的运动路径的上升位置。
根据一种可行实施方式，所述挡停器的第二活塞组件包括：第二芯部，其与所述第一活塞组件的筒部耦接；螺杆，其延伸进入所述第二芯部的第一空腔，用于固定所述第二芯部；以及行程辅助件，其与所述第二芯部耦接，所述行程辅助件被配置为通过对所述第二芯部施加力以使得所述第二活塞组件向上驱动所述第一活塞组件而使得所述第一芯部返回位于所述传输系统的托盘的运动路径中的上升位置。
根据一种可行实施方式，所述第一活塞组件的筒部还包括平行于所述第二运动方向延伸的中空杆部，所述中空杆部具有凹槽，所述基座具有收容并供所述中空杆部移动的槽；并且所述第二芯部具有与所述凹槽相适配的连接部。
根据一种可行实施方式，所述挡停器的第二活塞组件包括第二空腔，并且，在所述基座上开设有与所述减振腔和所述第二空腔都流体连接的管 道。
根据一种可行实施方式，述第一活塞组件还包括穿过所述筒部和所述基座的管道的调节件，所述调节件被配置为在所述管道中运动，以缩小或加宽所述管道与所述减振腔的连接，从而使得所述第一芯部在所述减振腔中运动的阻尼具有不同的量值。
根据一种可行实施方式，所述挡停器的第二活塞组件的行程辅助件包括至少一个弹簧元件。
根据一种可行的实施方式，所述压力介质是气态压力介质，所述第一芯部是L形的，并且由塑料或铝模制形成。
本申请在其另一个方面提供了一种传输系统，所述传输系统包括：传输轨道；和托盘，其与所述传输轨道适配并能够沿所述传输轨道运动，所述托盘用于装载在所述传输系统中进行操作的工件；其中，所述传输系统还包括如上所述的用于传输系统的挡停器，其与所述传输轨道附接。
根据一种可行实施方式，所述传输系统还包括控制阀，所述控制阀被配置为控制给所述挡停器提供压力介质以及停止提供压力介质的时间。
根据本申请的技术方案，采用单件式的筒部和单件式的第一芯部来实现第一活塞组件，减少了构件数量，结构简单灵活，准确性高，安全性好，由此优化了挡停器以及具有优化的挡停器的传输系统。
附图说明
下面将根据具体实施方式并且结合附图来更彻底地理解并认识本申请的上述和其它方面，在附图中：
图1是根据本申请的一种可行实施方式的传输系统的示意图；
图2是图1中的传输系统的挡停器的结构示意图；
图3A-图3E是根据本申请的一种可行实施方式的挡停器的挡停过程示意图，其中，图3A-图3E分别是整个挡停过程中的五个状态的示意图；以及
图4是根据本申请的一种可行实施方式的挡停器的局部结构的立体示意图。
具体实施方式
现在参照附图来描述本申请的一些实施方式。
本申请总体上涉及用于传输工件的传输系统，其具有挡停器。在传输系统中，工件装载于能够在传输系统的轨道上行进的托盘上，挡停器能够将在传输系统中行进的托盘以阻尼的方式挡停。根据本申请的传输系统规划灵活，结构简单，操作便捷。
图1示意性地显示了根据本申请的一种可行实施方式的传输系统10，其包括传输轨道1、托盘2和挡停器4。图2示意性地示出了图1中的传输系统10的挡停器4的结构示意图。
首先，参考图1和图2来说明根据申请的实施例的传输系统。
传输系统10可以包括一个或多个托盘2。托盘2用于承载工件，并在传输系统10的轨道1的带动下沿着轨道1进行，例如，沿着L方向(图1中的箭头方向)进行。挡停器4被固定在轨道1上，例如，通过螺栓穿过挡停器4的孔43而固定在轨道1上。应当理解，关于挡停器4在轨道1上的固定位置，可以根据需要而设定。也就是说，可以灵活布置挡停器4在轨道1上的附接位置。
挡停器4初始地被设置在托盘2的运动路径中，用于以阻尼的方式将沿着L方向行进的托盘2挡停，以便对托盘2上装载的工件进行诸如加工之类的操作。当对工件的操作结束后，挡停器4移出托盘2的运动路径以便对托盘2放行，并且在托盘2离开之后，挡停器4返回初始位置，即返回到托盘2的运动路径中，等待下一次挡停。
图3A-图3E示出了根据本申请的一种可行实施方式的挡停器4的挡停过程中的5个状态。图4示出了根据本申请的一种可行实施方式的挡停器4的局部结构。以下，结合附图来具体说明挡停器4的各个部件及其挡停原理。
挡停器4包括基座40和位于基座40中的第一活塞组件41和第二活塞组件42。第一活塞组件41与第二活塞组件42耦接。第一活塞组件41用于以阻尼减振的方式在水平方向(第一运动方向)上挡停托盘2。第二活塞组件42位于第一活塞组件41下方，用于驱动第一活塞组件41在竖直方向(第二运动方向)上移动，以便移出和返回托盘2的运动路径。
第一活塞组件41具有筒部411和第一芯部412。筒部411包括减振腔411A。在一些实施例中，筒部411是单一的模制件。减振腔411A具有压力介质，例如，诸如压缩空气之类的气态压力介质。第一芯部412包括杆部4120和竖直的挡停部4121。挡停部4121位于杆部4120的自由末端。在一些实施例中，第一芯部412是L形的单一的模制件。第一芯部412相对于基座40具有第一运动方向，例如，水平方向。杆部4120在减振腔411A中沿着第一运动方向往复运动。在一些实施例中，杆部4120在减振腔411A中贴着筒部411的内壁移动。第一活塞组件41相对于基座40具有垂直于第一运动方向的第二运动方向，比如竖直方向。
在一些实施例中，杆部4120具有与减振腔411A流体连通的空腔4120A，以便实现杆部4120的轻量化。
初始地，第一芯部412在减振腔411A中位于最大伸出位置，例如，如图3A所示的第一挡停位置。当挡停部4121接触到运动的托盘2时，在托盘2与挡停部4121接触并逐渐减速直到停下来的过程中，第一芯部421在减振腔411A中移动。也就是说，第一芯部412以阻尼的方式挡停托盘2，例如，第一芯部412从与托盘2刚接触时的第一挡停位置运动到托盘2停下来时的第二挡停位置。也就是说，第一挡停位置是托盘2与挡停部4121刚接触的初始位置，第二挡停位置是托盘2停下来的最终位置，即第一芯部412在减振腔411A中的最大进入位置，如图3B所示。
从以上的描述可见，根据本申请的实施例，挡停器4的第一芯部412是一体成型的构件，例如通过铸造的方式形成，其本身结构简单，加工成本低。挡停器4以阻尼的方式挡停运动中的托盘2，托盘2和挡停器4都不会产生很大的撞击，从而减小了托盘2和挡停器4在挡停过程中的损坏。
在筒部411的两侧面上分别具有开口部。在第一芯部412的两侧面上分别具有与开口部适配凸起部。在一些实施例中，如图4所示，在筒部411的一侧面上具有宽开口部4112和窄开口部4114。在第一芯部412的一侧面上具有宽凸起部4122和窄凸起部4124。宽开口部4112与宽凸起部4112相适配，并且窄开口部4114与窄凸起部4124相适配。例如，宽开口部4112的宽度与宽凸起部4122的宽度相同，并且窄开口部4114的宽度与窄凸起部4124的宽度相同。在第一芯部412的另一相对侧面上的开口部的布置以 及在第一芯部412的另一相对侧面上的凸起部的布置也是相同的情形。
由此可见，第一芯部412如同抽屉一样在减振腔411A中进行水平运动。当第一芯部412从第二挡停位置返回到初始位置(第一挡停位置)时，宽凸起部4124推抵于窄开口部4114。也就是说，在第一挡停位置，宽凸起部4124卡在宽开口部4112和窄开口部4114的连接处。由此，根据本申请的第一芯部412的结构，无需附加的部件(例如，附加的盖子)就能够防止第一芯部412在返回初始位置时飞出去。
第二活塞组件42包括第二芯部421、螺杆422和行程辅助件423。第二芯部421与第一活塞组件41的筒部411耦接，以便驱动第一活塞组件41在第二运动方向(例如，竖直方向)上运动。
在一些实施例中，筒部411包括平行于第二运动方向延伸的中空杆部，其具有凹槽4118。第二芯部421具有的与凹槽4118相适配的连接部4218。例如，凹槽4118是十字形的凹槽，连接部4218是与十字形的凹槽4118相适配的十字形连接部4218。基座40具有收容并供中空杆部移动的槽。由此第二芯部421与第一活塞组件41附接在一起。第二芯部421具有空腔421A。螺杆422延伸进入空腔421A，例如螺杆422与第二芯部421螺纹耦接。螺杆422用于固定第二芯部421。
行程辅助件423与第二芯部421耦接。当第一芯部412需要返回托盘2的运动路径中时，行程辅助件421对第二芯部421施加力以使得第二活塞组件42向上推动第一活塞组件41，以便第一活塞组件41返回托盘2的运动路径中。在一些实施例中，行程辅助件421为至少一个弹簧元件的形式。弹簧元件在第二活塞组件42向下运动时被压缩，然后利用其反弹力使得第二活塞组件42向上运动，以推动第一活塞组件41向上运动。
第二活塞组件42包括第二空腔42A。在基座40上开设有与减振腔411A和第二空腔42A都流体连接的管道411B。在一些实施例中，管道411B穿过筒部411和基座40。挡停器4具有用于接收压力介质的孔(未示出)，当挡停器4需要供给压力介质时，压力介质通过该孔首先提供给第二活塞组件42的空腔42A。关于压力介质的流动路径将在下面具体介绍。
第一活塞组件41还包括穿过管道411B的调节件413。例如，调节件413是调节螺钉。调节件413在管道411B中上下移动，以缩小或加宽管道 411B与减振腔411A的连接，例如，缩小或加宽管道411B与减振腔411A的连通截面积，从而改变第一芯部412在减振腔411A中运动的阻尼量值的大小。
第一活塞组件41还包括用于密封的环形密封件413。第二活塞组件42还包括用于密封的环形密封件424。应当理解，密封件413和密封件424可以是适于密封的任何适当的形式。
图3A-图3E分别示意性地示出了挡停器4挡停托盘2的过程，其中，图3A示出了初始状态，图3B示出了挡停状态，图3C示出了放行开始状态，图3D示出了放行结束状态，图3E示出了回位状态。以下，结合附图来依次说明每个状态。
初始状态
如图3A所示，挡停部4121处于第一挡停位置。此时，活塞筒411A具有最大容积。挡停部4121位于托盘2的运动路径中，等待与托盘2的接触。
挡停状态
如图3B所示，挡停部4121接触到运动中的托盘2，并以阻尼的方式在活塞筒411A中朝向逐渐减少活塞筒411A的容积的方向运动，直到活塞筒411A的容积几乎为零，即在第二挡停位置停止运动。此时，托盘2被完全停止下来，以便对托盘2上的工件执行各种加工操作。
放行开始状态
如图3C所示，在托盘2上的工件的加工操作结束后需要放行时，通过挡停器4上的一孔(未示出)给第二活塞组件42的空腔42A提供压力介质。在一些实施例中，该孔位于第二芯部421的上方，压力介质通过孔从上向下进入空腔42A。在一些实施例中，为挡停器4提供压力介质的控制信号来自外部的控制阀，例如电磁阀。在第二活塞组件42的空腔42A被提供压力介质之后，第二活塞组件42向下运动。在第二活塞组件42向下运动的过程中，与空腔42A和导管411B都连通的通道被打开，以使得压力介质经由该管道进入管道411B，从而进入活塞筒411A。在活塞筒411A被提供压力介质后，第一芯部412朝向退出活塞筒411A的方向运动，即朝向第一挡停位置的方向运动。
放行结束状态
如图3D所示，第一芯部412退到使得活塞筒411A的容积最大的位置，即第一挡停位置。此时，第一芯部412依然处于托盘2的运动路径下方。
回位状态
如图3E所示，例如在控制阀的控制信号的控制下，停止为第一芯部412提供压力介质。第二活塞组件42在弹簧423的反弹力的作用下向上运动，推动第一活塞组件41向上运动，以使得第一芯部412返回托盘2的运动路径中。此时，挡停器4回到初始状态，等待一下次挡停。
根据本申请的挡停器结构简单，成本低，易加工。由此，根据本申请的具有该挡停器的传输系统具有工作效率高、成本低、操作安全准确等优点。
虽然这里参考具体的实施方式描述了本申请，但是本申请的范围并不局限于所示的细节。在不偏离本申请的基本原理的情况下，可针对这些细节做出各种修改。

Claims (15)

  1. 一种用于传输系统(10)的挡停器(4)，其特征在于，所述挡停器(4)包括：
    基座(40)；以及
    第一活塞组件(41)，其组装于所述基座(40)中，所述第一活塞组件(41)包括：
    筒部(411)，所述筒部(411)包括减振腔(411A)，在所述减振腔(411A)中具有压力介质；和
    设置在所述筒部中的第一芯部(412)，所述第一芯部(412)相对于所述基座(40)具有第一运动方向，并且所述第一芯部(412)包括在所述减振腔(411A)能够沿着第一运动方向往复运动的杆部(4120)和挡停部(4121)，所述挡停部(4121)位于所述杆部(4120)的自由末端，
    其中，所述第一活塞组件(41)相对于所述基座(40)具有垂直于所述第一运动方向的第二运动方向。
  2. 根据权利要求1所述的用于传输系统(10)的挡停器(4)，其特征在于，所述筒部(411)是单件式模制件，在所述筒部(411)的两相对侧面上分别具有开口部，并且在所述第一芯部(412)的两相对侧面上分别具有与所述开口部相适配的凸起部。
  3. 根据权利要求1或2所述的用于传输系统(10)的挡停器(4)，其特征在于，
    所述筒部(411)的每个侧面上的开口部包括远离所述挡停部(4121)的宽开口部(4112)和靠近所述挡停部(4121)的窄开口部(4114)；
    所述第一芯部(412)的每个侧面上的凸起部包括远离所述挡停部(4121)的宽凸起部(4122)和靠近所述挡停部(4121)窄凸起部(4124)；并且
    所述宽开口部(4112)与所述宽凸起部(4122)相适配，所述窄开口部(4114)与所述窄凸起部(4124)相适配。
  4. 根据权利要求3所述的用于传输系统(10)的挡停器(4)，其特征在于，
    所述第一芯部(412)在所述第一运动方向上具有初始接触到在所述传输系统(10)中运动的托盘(2)时的第一挡停位置，以及在所述托盘(2)的推动下以阻尼的方式在所述减振腔(411A)中贴着所述筒部(411)的内壁移动而到达的第二挡停位置；并且
    在所述第一挡停位置，第一芯部(412)的宽凸起部(4122)推抵于所述筒部(411)的窄开口部(4114)。
  5. 根据权利要求1-4中任一项所述的用于传输系统(10)的挡停器(4)，其特征在于，所述挡停器(4)还包括第二活塞组件(42)，其组装于所述基座(40)中并与所述第一活塞组件(41)耦接；并且
    所述第二活塞组件(42)被配置为在所述第二运动方向上运动以驱动所述第一活塞组件(41)在所述第二运动方向上运动，以使得所述第一芯部(412)具有通过在所述第二运动方向上向下移动而移出所述传输系统(10)的托盘(2)的运动路径的下降位置和通过在所述第二运动方向上向上移动而返回所述托盘(2)的运动路径的上升位置。
  6. 根据权利要求1-5中任一项所述的用于传输系统(10)的挡停器(4)，其特征在于，所述挡停器(4)的第二活塞组件(42)包括：
    第二芯部(421)，其与所述第一活塞组件(41)的筒部(411)耦接；
    螺杆(422)，其延伸进入所述第二芯部(421)的第一空腔(421A)，用于固定所述第二芯部(421)，可选地，螺杆(422)与第二芯部(421)螺纹耦接；以及
    行程辅助件(423)，其与所述第二芯部(421)耦接，所述行程辅助件(423)被配置为通过对所述第二芯部(421)施加力以使得所述第二活塞组件(42)向上驱动所述第一活塞组件(41)而使得所述第一芯部(412)返回位于所述传输系统(10)的托盘(2)的运动路径中的上升位置。
  7. 根据权利要求6所述的用于传输系统(10)的挡停器(4)，其特征在于，
    所述第一活塞组件(41)的筒部(411)还包括自其底表面在所述第二运动方向延伸的中空杆部，所述基座(40)具有收容并供所述中空杆部移动的槽；并且
    所述中空杆部具有凹槽(4118)，所述第二芯部(421)具有与所述凹槽(4118)相适配的连接部(4218)；
    可选地，所述中空杆部具有凹槽(4118)与所述第二芯部(421)的连接部(4218)在形状上互补。
  8. 根据权利要求5-7中任一项所述的用于传输系统(10)的挡停器(4)，其特征在于，所述挡停器(4)的第二活塞组件(42)包括第二空腔(42A)，并且，在所述基座(40)上开设有与所述减振腔(411A)和所述第二空腔(42A)都流体连接的管道(411B)；并且
    所述第一活塞组件(41)还包括穿过所述管道(411B)的调节件(413)，所述调节件(413)被配置为在所述管道(411B)中运动，以缩小或加宽所述管道(411B)与所述减振腔(411A)的连接，从而使得所述第一芯部(412)在所述减振腔(411A)中运动的阻尼具有不同的量值。
  9. 根据权利要求6或7所述的用于传输系统(10)的挡停器(4)，其特征在于，所述第二活塞组件(42)的行程辅助件(423)包括至少一个弹簧元件；并且
    所述弹簧元件在所述第二活塞组件向下运动时被压缩，然后借助其反弹力使得所述第二活塞组件向上运动，以推动所述第一活塞组件向上运动。
  10. 根据权利要求1-9中任一项所述的用于传输系统(10)的挡停器(4)，其特征在于，所述压力介质是气态压力介质，可选地，所述气态压力介质是压缩控制。
  11. 根据权利要求1-10中任一项所述的用于传输系统(10)的挡停器 (4)，其特征在于，所述第一芯部(412)是呈L形的单件式模制件，
    可选地，所述第一芯部由塑料或铝模制成。
  12. 根据权利要求1-11中任一项所述的用于传输系统(10)的挡停器(4)，其特征在于，所述第一芯部(412)的杆部(4120)具有与所述筒部(411)的减振腔(411A)流体连通的空腔。
  13. 一种传输系统(10)，所述传输系统(10)包括：
    传输轨道(1)；
    托盘(2)，其与所述传输轨道(1)适配并能够沿所述传输轨道(1)运动，所述托盘(2)用于装载在所述传输系统中进行操作的工件；
    其特征在于，所述传输系统(10)还包括如权利要求1-12中任一项所述的用于传输系统(10)的挡停器(4)，其与所述传输轨道(1)附接，用于阻尼地挡停所述托盘(2)。
  14. 根据权利要求13所述的传输系统(10)，其特征在于，所述挡停器(4)在挡停所述托盘的过程中具有如下状态：
    初始状态，所述挡停器的挡停部位于托盘的运动路径中；
    挡停状态，所述挡停部接触到托盘，并朝向减小挡停器的活塞筒容积的方向运动，直至完成挡停；
    放行开始状态，通过给挡停器的第二活塞组件的空腔提供压力介质来使得第二活塞组件向下运动，从而使得挡停部朝向增大活塞筒容积的方向运动并位于托盘的运动路径下方；
    放行结束状态，挡停部运动至使得活塞筒容积最大的位置；以及
    回位状态，停止为挡停器提供压力介质，使得第二活塞组件向上运动，从使得所述挡停器的挡停部返回托盘的运动路径中，等待下一次档停。
  15. 根据权利要求14所述的传输系统，其特征在于，所述传输系统(10)还包括控制阀，所述控制阀被配置为控制给所述挡停器(4)提供压力介质以及停止提供压力介质的时间。
PCT/CN2019/103261 2018-08-31 2019-08-29 传输系统和用于传输系统的挡停器 WO2020043158A1 (zh)

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US5199537A (en) * 1990-11-07 1993-04-06 Helmut Worner Abutment with a damping device
WO1995001853A1 (en) * 1993-07-06 1995-01-19 Luigi Amedeo Cocino Pneumatic detent and hydraulic damper device
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DE10216801A1 (de) 2002-04-15 2003-11-13 Kuhnke Gmbh Kg H Anschlagelement mit einem Dämpfungszylinder
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US5199537A (en) * 1990-11-07 1993-04-06 Helmut Worner Abutment with a damping device
WO1995001853A1 (en) * 1993-07-06 1995-01-19 Luigi Amedeo Cocino Pneumatic detent and hydraulic damper device
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