CN114701968A

CN114701968A - Device for moving a plurality of objects and traction system

Info

Publication number: CN114701968A
Application number: CN202111639992.9A
Authority: CN
Inventors: 彭平; 沈永明; 蔡飞
Original assignee: Aptiv Electric System Co ltd
Current assignee: Aptiv Electric System Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-05

Abstract

The present disclosure provides an apparatus and a traction system for moving a plurality of objects. The apparatus includes a first traction mechanism for moving a first object, and a second traction mechanism for moving a second object. Wherein the second object is located above the first object. The first traction mechanism comprises at least two first fixed pulleys and at least two first traction wires. One end of each first traction wire is used for connecting a first object and is wound around a corresponding first fixed pulley in operation, and the other end of each first traction wire is driven to pull the first object to move. The at least two first fixed pulleys are positioned such that the at least two first traction wires are capable of exerting a resultant force vertically upwards on the first object, and the point of action of said resultant force is located at the centre of gravity of the first object. The apparatus provided by the present disclosure can be used to move and position multiple electrical test stations, thereby facilitating savings in the total footprint of multiple electrical test stations for multiple wiring harness tests.

Description

Device for moving a plurality of objects and traction system

Technical Field

The utility model relates to a pencil electricity test table field especially relates to an equipment for drawing a plurality of electricity test table removal.

Background

Nowadays, the demands of consumers for the performance of automobiles are more and more diversified and personalized, and accordingly, the demands of various varieties and small batches are put on the production of automobile wire harnesses. Since different kinds of harnesses generally require different devices to electrically test them, harness manufacturers need to purchase dedicated devices for different kinds of harnesses to electrically test them, which inevitably increases harness testing costs. Furthermore, the use of a variety of specialized test equipment also places new demands on the storage and operating space of the equipment.

At present, the electrical performance testing equipment for the wire harness, which can be used for electrically testing a plurality of types of wire harnesses, is available on the market, but the equipment is expensive in manufacturing cost and large in occupied area.

Disclosure of Invention

The technical scheme provided by the invention aims to solve the problems that the manufacturing cost of the wire harness electrical property testing equipment is high and/or the occupied area is large in the prior art.

In one aspect of the present invention, there is provided an apparatus for moving a plurality of objects, the apparatus comprising: a first traction mechanism for moving a first object; and a second traction mechanism for moving a second object, wherein the second object is located above the first object, and the first traction mechanism comprises: at least two first fixed pulleys; and at least two first traction wires, one end of each first traction wire is used for connecting the first object and is wound around the corresponding first fixed pulley in operation, the other end of each first traction wire is driven to pull the first object to move, wherein the at least two first fixed pulleys are positioned so that the at least two first traction wires can apply a resultant force vertically upwards to the first object, and the action point of the resultant force is positioned at the gravity center of the first object.

In at least one embodiment of an aspect of the invention, the at least two first fixed pulleys are positioned such that each of the first traction wires is capable of exerting a vertical upward force on the first object.

In at least one embodiment of one aspect of the present invention, the first traction mechanism further comprises a labor saving assembly comprising: a movable pulley; a second fixed pulley; and a second traction wire, one end of which is to be fixed and which is to be operatively passed around the movable pulley and the second fixed pulley in sequence, the other end of which is to be driven to move the movable pulley, wherein the other end of each of the first traction wires is to be fixed with respect to the movable pulley.

In at least one embodiment of one aspect of the present invention, the first traction mechanism further comprises a balance bar, the balance bar and the movable sheave being fixed to each other, wherein the other end of each of the first traction wires is connected to the balance bar.

In at least one embodiment of one aspect of the present invention, the first traction mechanism further includes a direction-changing mechanism that is located above the second fixed sheave and is positioned so that the second traction wire will be applied with a driving force in a horizontal direction.

In at least one embodiment of one aspect of the present invention, the direction changing mechanism includes a third fixed sheave, wherein the second traction wire is operatively passed around the movable sheave, the second fixed sheave, and the third fixed sheave in this order from the one end thereof.

In at least one embodiment of one aspect of the present invention, the first pulling mechanism comprises: four first fixed pulleys; four first traction wires, wherein two first fixed pulleys of the four first fixed pulleys are positioned on the same side of the labor-saving assembly relative to the first object, two of the four first traction wires each having one end for attachment to the first object, each operatively passing around a respective one of the two first fixed pulleys, and each other end is connected to the balance bar, the other two first fixed pulleys of the four first fixed pulleys are positioned on the opposite side of the labor-saving assembly relative to the first object, one end of each of the other two of the four first traction wires is used for connecting the first object, each of the other two first traction wires is wound around a corresponding one of the other two first fixed pulleys and a corresponding one of the two first fixed pulleys in operation, and the other end of each of the other two first traction wires is connected to the balance bar.

In at least one embodiment of an aspect of the invention, the apparatus further comprises: a first stopper drive mechanism; and a controller communicatively coupled with the first stop drive mechanism and configured to: controlling the first stop drive mechanism to move and/or fix the first object in the vertical direction.

In at least one embodiment of one aspect of the present invention, the first stop drive mechanism includes a drive device, the controller is communicatively coupled with the drive device and configured to: controlling the driving device to apply or stop applying a driving force to the other end of each of the first traction wires in the first traction mechanism.

In at least one embodiment of one aspect of the present invention, the driving device includes a hoist for applying a driving force to the other end of each of the first traction wires in the first traction mechanism.

In at least one embodiment of an aspect of the invention, the apparatus further comprises: a frame for carrying the plurality of objects; and a rail portion disposed inside the frame, the first detent drive mechanism including a detent device for being secured to the first object and configured to be movable relative to the rail portion, the controller communicatively coupled with the detent device and configured to: controlling the stop means to allow or prevent movement of the stop means relative to the guide rail portion.

In at least one embodiment of one aspect of the invention, the arresting device comprises a slide and/or a brake, wherein the brake comprises two brake linings and, in operation, the two brake linings are located on either side of the guide rail part.

In at least one embodiment of one aspect of the invention, the apparatus comprises at least two of said rail parts, at least one of said at least two of said rail parts being arranged inside a left rim of said frame and at least one other of said at least two of said rail parts being arranged inside a right rim of said frame, and said first arresting driving mechanism comprises at least two of said arresting devices, each arresting device being adapted to be fixed to said first object and being arranged to be movable relative to the respective rail part.

In at least one embodiment of one aspect of the invention, the apparatus comprises four of said rail parts, wherein two of the four rail parts are arranged inside the left rim of said frame and the other two rail parts are arranged inside the right rim of said frame, and said first arresting drive mechanism comprises four of said arresting devices.

In at least one embodiment of one aspect of the invention, the apparatus further comprises a blocker fixedly mounted to the frame, the controller communicatively coupled with the blocker and configured to: activating the blocker to block the plurality of objects from moving within the frame past the blocker; and deactivating the blocker to allow the plurality of objects to move within the frame past the blocker.

In at least one embodiment of one aspect of the invention, the device further includes a security barrier disposed within or near an operating region of the device, the controller communicatively coupled with the security barrier and configured to: enabling the security barrier to detect whether a person enters the operational zone of the device, wherein the operational zone includes a physical space in which the device is located.

In at least one embodiment of one aspect of the present invention, the apparatus further comprises a second stop drive mechanism, the controller communicatively coupled with the second stop drive mechanism and configured to: controlling the second stopper driving mechanism to move and/or fix the second object in the vertical direction, the second traction mechanism having the same configuration as the first traction mechanism, and the second stopper driving mechanism having the same configuration as the first stopper driving mechanism.

In another aspect of the present invention, there is provided a traction system comprising: an apparatus as in any preceding paragraph; and a plurality of objects including the first object and the second object.

In at least one embodiment of another aspect of the present invention, the traction system includes three objects, wherein each object vertically overlaps an adjacent object.

In at least one embodiment of another aspect of the present invention, the three objects are three electrical stations for electrical testing of three types of wire harnesses, respectively.

Compared with the prior art, the invention has one or more of the following advantages:

(1) the plurality of electric test stations are arranged in the vertical direction, so that the total occupied area of the plurality of electric test stations for testing various wiring harnesses is saved;

(2) the plurality of electric test stations are movable in the vertical direction, so that an operator can conveniently switch among the plurality of electric test stations so as to test different types of wiring harnesses;

(3) a plurality of electric test stations arranged in the vertical direction can share one electric test system, so that the cost for testing various wire harnesses is saved;

(4) by utilizing the labor-saving assembly, the electric measuring table can be lifted and lowered along the vertical direction by adopting a driving device with smaller power, so that the cost is saved;

(5) the balance rod is utilized, so that the stability of the electric testing table moving in the frame is improved;

(6) the brake is utilized, so that the positioning precision of the electric test platform is increased;

(7) by utilizing the stopper, it is advantageous to increase the safety of the wire harness test operation.

Drawings

To further clarify the above and other advantages and features of various embodiments of the present invention, a more particular description of various embodiments of the invention will be rendered by reference to the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope as claimed. In the drawings, like reference numerals may designate identical or similar parts.

FIG. 1 shows a perspective view of a multiple electrical station system according to an embodiment of the invention.

FIG. 2 is a partially enlarged schematic view illustrating an assembly relationship between an electricity measuring table, a stopper and a rail portion in a multi-electricity measuring table system according to an embodiment of the present invention.

Fig. 3 is a schematic diagram illustrating the assembly relationship between the traction mechanism and the test table and the driving device in the multi-test-table system according to the embodiment of the invention.

Fig. 4A and 4B are schematic diagrams illustrating a blocker in a disabled state and an enabled state, respectively, in a multi-station system according to an embodiment of the present invention.

FIG. 5 shows a block diagram of the communicative coupling between the controller and other components in the device, according to an embodiment of the present invention.

Reference numerals:

10 multi-electric measuring station system

20 device

21 frame

23 guide rail part

231 wall

24 driving device

25 stop device

251 fixed plate

253 slide block

255 brake

261 fixed pulley

262 fixed pulley

263A-263D fixed pulley

264 movable pulley

265 balance bar

266 traction wire

267A-267D pull wires

28A-28B stopper

29 safety grating

40 electric measuring table

41A-41D traction part

50 controller

Detailed Description

While the invention will be described in further detail in connection with specific embodiments and with reference to the accompanying drawings, the following description sets forth numerous details for a thorough understanding of the invention, it will be readily apparent that the invention may be embodied in many other forms other than those described herein, and it will be readily apparent to those skilled in the art that the invention may be practiced with many modifications and alterations without departing from the spirit of the invention, and the scope of the invention should not be limited by the contents of this detailed embodiment.

This application uses specific words to describe embodiments of the application. Reference to "one embodiment," "another embodiment," and/or "some embodiments" means a feature, structure, or characteristic described in connection with at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "one embodiment" or "another embodiment" or "some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

It should be noted that in the foregoing description of embodiments of the present application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to imply that more features are required than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Referring to FIG. 1, FIG. 1 shows a perspective view of a multiple electrical stand system 10 according to an embodiment of the present invention. As shown in fig. 1, a multiple electrical testing station system (which may also be referred to as a traction system) 10 includes a device 20 and three electrical testing stations 40, where the device 20 includes a frame 21, the frame 21 extending a height in a vertical direction V, the three electrical testing stations 40 being mounted at different heights within the frame 21. In some embodiments, the three electrical stations 40 may be different electrical test platforms for electrical testing of different kinds of wiring harnesses. In other embodiments, one or more of the three electrical stations 40 may be the same electrical testing platform for electrical testing of the same kind of wiring harness. Further, while three electrical stations 40 are shown mounted within the apparatus 20 in FIG. 1, it should be understood that one skilled in the art may mount other numbers of electrical stations 40 within the frame 21 as desired, such as 1 electrical station, 2 electrical stations, or more than three electrical stations. Multiple electrical test stations 40 are mounted within the same frame 21, which allows multiple electrical test stations 40 to share one electrical test system, thereby facilitating cost savings for testing multiple wiring harnesses. In other embodiments, the system 10 may be used to move other objects, not just the mobile test station 40.

As shown in fig. 1, the apparatus 20 may further include a rail portion 23 and a detent 25, wherein the detent 25 may be adapted to be mounted to the rail portion 23 and movable relative to the rail portion 23. When the test stand 40 is mounted into the frame 21, the test stand 40 is secured to the stop 25, as shown in detail in fig. 2. FIG. 2 illustrates an enlarged partial schematic view of the assembled relationship between the electrical measuring station 40, the stopping device 25 and the rail portion 23 in the multiple electrical measuring station system 10 according to an embodiment of the present invention. As shown in fig. 2, the stopper 25 may include a fixing plate 251, a slider 253, and a stopper 255, wherein the slider 253 and the stopper 255 are mounted to the fixing plate 251.

In some embodiments, as shown in fig. 2, the rail portion 23 has a wall 231 and has a T-shaped cross-section perpendicular to the extending direction thereof. When the stopper 25 is mounted to the rail portion 23, the slider 251 may be located at one side of the wall 231 of the rail portion 23. The brake 253 may have two brake pads (only one brake pad is shown in fig. 2), one of which may be located on the side of the rail portion 23 where the slider 251 is located, and the other of which may be located on the other side of the rail portion 23. When the brake 253 is in the deactivated state (e.g., the released state), both brake pads are not in contact with the wall 231 of the rail portion 23 and are movable in the vertical direction V with the stopper 25 relative to the rail portion 23. When the brake 253 is in the activated state (e.g., the locked state), the two brake pads move toward the wall 231 to contact the wall 231 of the rail portion 23, thereby preventing the entire detent 25 from moving in the vertical direction V relative to the rail portion 23.

In other embodiments, the rail portion 23 may have one groove and a U-shaped section perpendicular to the extending direction thereof. When the stopper 25 is mounted to the rail portion 23, the slider 251 may be located in the groove of the rail portion 23. Brake 253 may have two brake pads, both of which are located in the slot. When the brake 253 is in a deactivated state (e.g., a released state), the two brake pads are not in contact with the two side walls of the groove of the rail portion 23 and are movable with the stopper 25 in the vertical direction V relative to the rail portion 23. When the brake 253 is in an activated state (e.g., a locked state), the two brake pads move back toward the two side walls, respectively, to contact the two side walls of the rail portion 23, respectively, thereby preventing the entire detent 25 from moving in the vertical direction V relative to the rail portion 23.

Referring to fig. 2, when the electrical measuring table 40 is mounted into the frame 21, the electrical measuring table 40 may be fixed to the fixing plate 251 of the stopper 25, and may be moved and positioned with respect to the rail portion 23 by the stopper 25, thereby achieving movement and positioning in the vertical direction V within the frame 21.

Referring back to fig. 1, in fig. 1, the three test stations 40 mounted into the frame 21 of the apparatus 20 are substantially the same in shape and size, the number of the rail portions 23 is four, the four rail portions 23 are vertically provided near the four corners of the inside of the frame 21, respectively, and the distances between the four rail portions 23 are set to match the sizes of the three test stations 40 mounted into the frame 21. In some embodiments, multiple electroscopes 40 may share the rail portion 23, as shown in FIG. 1. The number of common rail portions 23 may be set to other numbers, for example, 1, 2, 3, or more than four. The positions of these common rail portions 23 may be appropriately set based on the number of rail portions 23 and the shape and size of the electric stage 40, for example, two of the four common rail portions 23 may be symmetrically disposed front and back on the left side of the electric stage 40 and the other two may be symmetrically disposed front and back on the right side of the electric stage 40 (as shown in fig. 1), or two of the four common rail portions 23 may be symmetrically disposed left and right on the front side of the electric stage 40 and the other two may be symmetrically disposed left and right on the rear side of the electric stage 40. In some embodiments, all of the common rail portions 23 (e.g., one or more common rail portions 23) may be disposed side-by-side on one side, e.g., the back side, of the electrical testing table 40. In embodiments where all of the common rail portions 23 are disposed on the rear side of the electrical measuring table 40, the plurality of electrical measuring tables 40 may be different in shape and/or size. In other embodiments, dedicated rail portions 23 may be provided for one or more electrical testing stations 40 that differ in shape and/or size, and the number of dedicated rail portions 23 may be the same or different for each electrical testing station 40.

Referring to fig. 1, the apparatus 20 may include four stoppers 25 corresponding to the four rail portions 23, respectively, for each of the test stations 40, and thus, in the embodiment shown in fig. 1 including three test stations 40, the number of rail portions 23 being four, and being common to the three test stations 40, the apparatus 20 may include 12 stoppers 25. The number of the stoppers 25 may be adjusted accordingly based on the number of the electrical stations 40 and the number of the rail parts 23 to be used per electrical station 40. The number of the stoppers 23 may be set equal to the sum of the number of the rail portions 23 to be used per each of the electrical stations 40.

Referring to FIG. 1, apparatus 20 may further include a stop drive mechanism and a traction mechanism, wherein the traction mechanism may include a crown block 261-. The stopper driving mechanism may perform driving and/or stopping as needed for moving and/or fixing the electricity table 40 in the vertical direction V. The stop drive mechanism may be implemented by one device or a combination of devices. In some embodiments, the stop drive mechanism may include one or both of the drive device 24 and the stop device 25 described above. In still other embodiments, the drive device 24 may include a winch or other electromechanical device capable of applying a driving force. It will be appreciated that the apparatus 20 may not include the drive means 24, for example the electrical test stand 40 may be driven to move in the vertical direction V within the frame 21 by an operator applying a driving force to the traction mechanism. In this context, the term "fixed pulley" means that the pulley is fixed relative to the frame 21 or other reference, and the term "movable pulley" means that the pulley is movable relative to the frame 21 or other reference.

How the driving device 24 drives the movement and positioning of the electric test stage 40 in the vertical direction V within the frame 21 via the traction mechanism is described in detail below with reference to fig. 3. FIG. 3 is a schematic diagram illustrating the assembly of the traction mechanism with the test table 40 and the drive mechanism 24 in the multiple test table system 10 according to an embodiment of the present invention. For the sake of clarity, only the traction mechanism and the drive means 24 for one electrical testing station 40 in the apparatus 20 are shown in fig. 3. The other stations 40 may have the same or different traction mechanisms and drive devices 24 as the one station 40.

As shown in fig. 3, the traction mechanism may include a traction wire 266, the traction wire 266 being connected to the driving device 24 at one end, passing through the fixed pulley 261, the fixed pulley 262 and the movable pulley 264 in order, and connected to the base plate 211 of the frame 21 at the other end. Wherein the driving device 24 and the fixed pulley 261 can be substantially at the same horizontal position, the fixed pulley 261 and the fixed pulley 262 can be substantially at the same vertical position, and the movable pulley 264 can be positioned between the fixed pulley 261 and the fixed pulley 262. In this embodiment, the fixed pulley 261 is used to change the direction of the traction wire 266, constituting a direction changing mechanism. The traction wire 266, the fixed pulley 262 and the movable pulley 264 constitute a labor-saving assembly that allows a small driving force to be applied, and can perform a labor-saving function.

As shown in FIG. 3, the electrical stage 40 may have four traction portions 41A-41D symmetrically arranged about its center of gravity. Correspondingly, the traction mechanism may have four traction wires 267A-267D, the traction wires 267A-267D may be connected at one end to respective traction portions 41A-41D, may be looped around fixed pulleys 263A-263D directly above the traction portions 41A-41D, respectively, and may be connected at the other end to a balance bar 265. For example, as shown in fig. 3, a traction wire 267A may be connected at one end to the traction portion 41A, routed around the fixed

pulleys

263A, 263D in order, and connected at the other end to the stabilizer bar 265; the traction wire 267B may be connected at one end to the traction portion 41B, passing around the fixed

pulleys

263B, 263C in sequence in the middle, and connected at the other end to the balance bar 265; a traction wire 267C may be connected to the traction portion 41C at one end, wound around the fixed pulley 263C in the middle, and connected to the balance bar 265 at the other end; a traction wire 267D may be connected to the traction portion 41D at one end, pass around the fixed pulley 263D in the middle, and be connected to the balance bar 265 at the other end. Wherein the fixed pulleys 263A-263D may be located directly above the traction portions 41A-41D of the electrical table 40, respectively, and the balancing bar 265 may be located below the fixed

pulleys

263C and 263D, and movably installed between the two rail portions 23 and fixed to each other with the movable pulley 264.

In some embodiments, when a hoist serving as the driving device 24 is rotated to tighten the traction wire 266, the traction wire 266 may apply a downward force F1 to the traveling block 266 and even the balance bar 265 fixed to each other with the traveling block 266. When the force F1 is greater than the weight F2 of the test stand 40 (the friction between the pull wire and the pulley is ignored here for ease of understanding), the movable pulley 264, along with the balance bar 265, can move downward. When the balancing bar 265 moves downward, the traction wires 267A-267D, one end of which is connected to the balancing bar 265, may pull the electricity measuring table 40 upward by the other end thereof connected to the traction part, thereby causing the electricity measuring table 40 to move upward in the vertical direction V within the frame 21. The present invention, by utilizing a labor-saving assembly (e.g., including pull wire 266, fixed pulley 262, and traveling pulley 264), may allow for the use of a less powered drive 24 to drive the movement of electrical measuring station 40 in vertical direction V. Further, with the balance bar 265, the stability of the movement of the electricity table 40 within the frame 21 can be increased.

When the hoist is rotated to release the traction wire 266, the traction wire 266 applies a downward force F1 to the traveling block 264 and even to the balance bar 265 secured to the traveling block 264. When F1 is less than the gravity F2 of the electrical measuring table 40, the electrical measuring table 40 can move downward in the vertical direction V within the frame 21 under the influence of its gravity, while the balance bar 265 together with the movable pulley 264 can move upward accordingly.

When the hoist stops rotating, the downward force F1 exerted by the pull wire 266 on the traveling block 264 and the balance bar 265 secured to the traveling block 264 may be balanced with the weight F2 of the electrical measuring station 40. At this point, the movable pulley 264 and the balance bar 265 may remain stationary, and the test block 40 may remain stationary accordingly, and thus be fixed at a height within the frame 21.

In the above embodiment, the traction mechanism is depicted as including the fixed pulley 261 as the direction changing mechanism, in which the fixed pulley 261 is substantially at the same horizontal position as the driving device 24 and substantially at the same vertical position as the fixed pulley 262 (for example, the fixed pulley 261 is located directly above or below the fixed pulley 262). In other embodiments, the traction mechanism may include other redirection mechanisms instead of or in addition to the fixed pulley 261, where the other redirection mechanisms are positioned such that the traction wire 266 will be applied with a horizontally directed driving force, for example, the other redirection mechanisms may be located above the fixed pulley 262 and at substantially the same horizontal position as the driving device 24. In other embodiments, the traction mechanism may not include a redirection mechanism (such as the fixed pulley 261), and the traction wire 266 may extend from the drive device 24 and directly pass around the fixed pulley 262 and the movable pulley 264 in sequence, wherein the fixed pulley 262 and the drive device 24 may be substantially at the same vertical position or substantially at the same horizontal position.

Further, the traction mechanism may also not include the labor saving components (e.g., fixed pulleys 262, movable pulleys 264, and traction wires 266) and balance bar 265, but may instead include only traction wires 267A-267D and fixed pulleys 263A-263D. Wherein one end of the traction wires 267A-267D can be connected to the traction portions 41A-41D of the electrical testing table 40, respectively, the middle can be passed around the fixed pulley above the corresponding traction portion, and the other end of the traction wires 267A-267D can be connected to the driving device 24. For example, a traction wire 267A can be connected at one end to the traction portion 41A, routed around the fixed pulley 263A (and additionally, can also be routed around the fixed pulley 263D), and connected at the other end to the drive device 24; the traction wire 267B may be connected at one end to the traction portion 41B, pass around the fixed pulley 263B (and additionally, may also pass around the fixed pulley 263C) in turn, and be connected at the other end to the driving device 24; a traction wire 267C having one end connectable to the traction portion 41C, passing around the fixed pulley 263C in the middle, and the other end connected to the driving device 24; the traction wire 267D may be connected to the traction portion 41D at one end, pass around the fixed pulley 263D in the middle, and be connected to the driving device 24 at the other end.

While the foregoing embodiment depicts the electroscope table 40 as having four traction portions 41A-41D, the four traction portions 41A-41D are symmetrically arranged with respect to the center of gravity of the electroscope table 40, and accordingly, the traction mechanism may include four traction wires 267A-267D and four fixed pulleys 263A-263D, respectively, directly above the traction portions 41A-41D. However, in other embodiments, the electrical measuring station 40 may have other numbers of pulls, for example, one pull (which may be located at the center of gravity of the electrical measuring station 40), two pulls, three pulls, or more than four pulls. When the number of the pulling portions is more than one, the pulling portions may be arranged in a balanced manner with respect to the center of gravity of the electric stage 40 to increase the stability of the movement of the electric stage 40 within the frame 21. Accordingly, the traction mechanism may comprise the same number of traction wires 267 as the number of traction portions, and the same number of fixed pulleys 263 as the number of traction portions, wherein these fixed pulleys 263 may be positioned such that the resultant force applied to the electricity measuring table 40 is vertically upward, and the point of action of the resultant force is located at the center of gravity of the electricity measuring table 40.

Referring back to fig. 1, the apparatus 20 may further include

stoppers

28A and 28B, and the

stoppers

28A and 28B may be fixedly mounted to the frame 21 for preventing the electrical testing station 40 mounted thereon from falling or moving downward below the

stoppers

28A and 28B. Fig. 4A and 4B show schematic diagrams of

blockers

28A and 28B in a deactivated state and an activated state, respectively, in multi-electrical station system 10, according to an embodiment of the present invention. As shown in fig. 4A, when the

blockers

28A and 28B are in the deactivated state, the electrical measurement table 40 located above the

blockers

28A and 28B may move downward within the frame 21 below the

blockers

28A and 28B. Further, an electrical test table 40 (not shown in fig. 4A) located below the

blockers

28A and 28B may be moved upwardly within the frame 21 above the

blockers

28A and 28B when the

blockers

28A and 28B are in the deactivated state. As shown in fig. 4B, when the

stoppers

28A and 28B are in the activated state, the stopper 281A on the stopper 28A and the stopper 281B on the stopper 28B move to directly below the electrical measuring table 40, so that the electrical measuring table 40 above the stopper 28 is prevented from falling down or moving below the

stoppers

28A and 28B. In addition, when

blockers

28A and 28B are in the activated state, blocker 281A on blocker 28A and blocker 281B on blocker 28B may also be used to prevent electrical stage 40 (not shown in fig. 4B) below

blockers

28A and 28B from moving upward above

blockers

28A and 28B.

Additionally, device 20 may also include a security barrier 29 (not shown in fig. 1), which security barrier 29 may be disposed within or near an operating region of device 20. The operating region may include the physical space in which the device 20 is located. When the security barrier 29 is in the enabled state, it can be detected whether a person enters the operating area of the device 20.

Additionally, the apparatus 20 may also include a controller 50. Fig. 5 shows a schematic diagram of the communicative coupling between controller 50 and other components in device 20, according to an embodiment of the present invention.

As shown in fig. 5, the controller 50 may be communicatively coupled with the drive device 24. The controller 50 may be configured to: controlling the driving device 24 to drive so as to make the electrical testing table 40 move (including upward movement or downward movement) in the vertical direction V in the frame 21; and controls the driving device 24 to stop driving so that the electricity measuring table 40 is fixed at a certain height within the frame 21.

Controller 50 may also be communicatively coupled with retaining device 25 (e.g., brake 255) and further configured to: the stopper 25 is controlled to allow or prevent the stopper 25 from moving relative to the rail portion 23. For example, the controller 50 may be further configured to: controlling the brake 255 in a deactivated state (e.g., a released state) to allow the brake 255 to move relative to the rail portion 23, thereby allowing the electrical stage 40 to move in the vertical direction V within the frame 21; or to control the brake 255 in an activated state (e.g., a locked state) to prevent the brake 255, and thus the stopper 25, from moving relative to the rail portion 23, and thus prevent the test stage 40 from moving in the vertical direction V within the frame 21. By using the brake 255 to prevent the movement of the stage 40 within the frame 21, the accuracy of the positioning of the stage 40 within the frame 21 can be improved.

The controller 50 may also be communicatively coupled with the

blockers

28A and 28B, and further configured to: controls the

blockers

28A and 28B in a deactivated state to allow the test station 40 to move past the

blockers

28A and 28B; or controls the

blockers

28A and 28B to be in an activated state to prevent the test station 40 from moving past the

blockers

28A and 28B. With the

stoppers

28A and 28B, the electricity measuring table 40 located above the

stoppers

28A and 28B can be prevented from being inadvertently dropped, so that the safety of the operator located below the

stoppers

28A and 28B can be improved.

The controller 50 may also be communicatively coupled with the security grating 29 and further configured to: controlling the safety barrier 29 to be in a deactivated state to allow an operator to freely enter an operation area of the multiple electric station system 10; or to control the security barrier 29 to be in an enabled state to detect whether a person enters the operating area of the multiple test station system 10. In some embodiments, the controller 50 may be configured to: controlling the safety grating 29 to be in an activated state during controlling the driving of the driving device 24 to move the stage 40; or to control the safety grating 29 to be in a deactivated state after the electrical measuring station 40 has been moved to a specified height. The controller 50 may be further configured for: in response to the safety barrier 29 detecting a person entering the operating area of the multiple metering station system 10, a visual or audible warning is issued, and/or the drive of the drive device 24 is stopped or suspended. This may, on the one hand, avoid potential hazards to the operator due to entering the operating area of the multiple electrical station system 10 at inopportune times (e.g., when the electrical station 40 is moving), and on the other hand, may prevent the multiple electrical station system 10 from being externally disturbed during movement of the electrical station 40.

While the present invention has been described in accordance with its preferred embodiments, it is not intended to be limited thereto, but rather only by the scope set forth in the following claims.

Claims

1. An apparatus for moving a plurality of objects, the apparatus comprising:

a first traction mechanism for moving a first object; and

a second traction mechanism for moving a second object, wherein the second object is located above the first object, an

The first pulling mechanism includes:

at least two first fixed pulleys; and

at least two first traction wires, each of the first traction wires having one end for connection to the first object and being operatively passed around the corresponding first fixed pulley, the other end of each of the first traction wires being to be driven to pull the first object to move,

wherein the at least two first fixed pulleys are positioned such that the at least two first traction wires are capable of exerting a resultant force vertically upwards on the first object, and the point of action of the resultant force is located at the centre of gravity of the first object.

2. The apparatus of claim 1, wherein the at least two first fixed pulleys are positioned such that each of the first traction wires is capable of applying a vertical upward force to the first object.

3. The apparatus of claim 1, wherein the first traction mechanism further comprises a labor-saving assembly, the labor-saving assembly comprising:

a movable pulley;

a second fixed pulley; and

a second traction wire, one end of which is to be fixed and which is to be passed around the movable pulley and the second fixed pulley in order in operation, the other end of which is to be driven to move the movable pulley,

wherein the other end of each of the first traction wires is to be fixed with respect to the movable pulley.

4. The apparatus of claim 3, wherein the first traction mechanism further comprises a balance bar, the balance bar and the movable sheave being fixed to each other,

wherein the other end of each of the first traction wires is connected to the balance bar.

5. The apparatus of claim 4, wherein the first traction mechanism further comprises a direction changing mechanism located above the second fixed sheave and positioned such that the second traction wire will be applied with a horizontally directed driving force.

6. The apparatus of claim 5, wherein the redirecting mechanism comprises a third fixed sheave,

wherein the second traction wire is operatively routed from the one end thereof over the movable sheave, the second fixed sheave, and the third fixed sheave in that order.

7. The apparatus of claim 6, wherein the first pulling mechanism comprises:

four first fixed pulleys;

four first traction wires are arranged on the first side of the frame,

wherein two of the four first stators are located on the same side of the labor saving assembly relative to the first object, one end of each of two of the four first traction wires is used for connecting the first object, each one is wound around a corresponding one of the two first stators in operation, and the other end of each one is connected to the balance bar,

the other two of the four first fixed pulleys are located on opposite sides of the labor saving assembly relative to the first object, one end of each of the other two of the four first traction wires is used for connecting the first object, each of the other two first fixed pulleys is wound around the corresponding one of the other two first fixed pulleys and the corresponding one of the two first fixed pulleys in operation, and the other end of each of the other two first fixed pulleys is connected to the balance bar.

8. The apparatus of claim 1, wherein the apparatus further comprises:

a first stopper drive mechanism; and

a controller communicatively coupled with the first stop drive mechanism and configured to: controlling the first stop drive mechanism to move and/or fix the first object in the vertical direction.

9. The apparatus of claim 8, wherein the first stop drive mechanism comprises a drive device,

the controller is communicatively coupled with the drive device and configured to: controlling the driving device to apply or stop applying a driving force to the other end of each of the first traction wires in the first traction mechanism.

10. The apparatus of claim 9, wherein the driving device comprises a winding machine for applying a driving force to the other end of each of the first traction wires in the first traction mechanism.

11. The apparatus of claim 8, wherein the apparatus further comprises:

a frame for carrying the plurality of objects; and

a guide rail part disposed inside the frame,

the first stopper drive mechanism includes a stopper device for being fixed to the first object and configured to be movable relative to the rail portion,

the controller is communicatively coupled with the arresting device and configured to: controlling the stop means to allow or prevent movement of the stop means relative to the guide rail portion.

12. Device according to claim 11, characterized in that the stopping means comprise a slide and/or a brake,

wherein the brake comprises two brake pads and, in operation, the two brake pads are located on either side of the guide rail portion.

13. The apparatus of claim 11, wherein the apparatus comprises at least two of the rail portions, at least one of the at least two of the rail portions being disposed inside a left bezel of the frame and at least one other of the at least two of the rail portions being disposed inside a right bezel of the frame, and

the first stopper drive mechanism includes at least two of the stopper devices, each for being fixed to the first object and configured to be movable relative to a corresponding rail portion.

14. The apparatus of claim 13, wherein the apparatus comprises four of the rail portions, wherein two of the four rail portions are disposed inside a left bezel of the frame and two other rail portions are disposed inside a right bezel of the frame, and

the first stopper drive mechanism includes four of the stopper devices.

15. The apparatus of claim 11, further comprising a stopper fixedly mounted to the frame,

the controller is communicatively coupled with the blocker and configured to:

activating the blocker to prevent the plurality of objects from moving past the blocker within the frame; and is

Deactivating the blocker to allow the plurality of objects to move within the frame past the blocker.

16. The device of claim 8, further comprising a security barrier disposed within or near an operating region of the device,

the controller is communicatively coupled with the security barrier and configured to:

enabling the security barrier to detect whether a person enters the operational zone of the device, wherein the operational zone includes a physical space in which the device is located.

17. The apparatus of any one of claims 8-16, further comprising a second stop drive mechanism,

the controller is communicatively coupled with the second stop drive mechanism and configured to: controlling the second stopper driving mechanism to move and/or fix the second object in the vertical direction,

the second traction mechanism has the same configuration as the first traction mechanism, and

the second stopper drive mechanism has the same configuration as the first stopper drive mechanism.

18. A traction system, the traction system comprising:

the device of any one of claims 1-17; and

a plurality of objects including the first object and the second object.

19. The traction system according to claim 18, wherein the traction system comprises three objects, wherein each object vertically overlaps an adjacent object.

20. The traction system of claim 19 wherein the three objects are three electrical stations for electrical testing of three types of wire harnesses, respectively.