Rail transfer structure of RGV (Rail Guided Vehicle)

Abstract

The utility model discloses an RGV track transfer structure which comprises a circular track module, a straight track module, a track transfer module, a moving module and a linkage module, and the straight track module and the circular track module are arranged in a tangent mode. The track transfer module is arranged at the intersection of the circular track module and the straight track module, and comprises a translation track and a rotation track; the moving module is connected with the translation track and can alternately reach a first position or a second position; the linkage module is connected with the moving module and the rotating track so that reciprocating motion of the moving module can be converted into reciprocating rotation of the rotating track, and when the moving module reaches a first position, the linkage module is connected with the moving module and the rotating track. The RGV rail transfer structure has the advantages that multiple sets of drive are simplified into one set of drive, linkage of translation rail transfer and rotation rail transfer is achieved, the translation rail transfer action and the rotation rail transfer action can be completely synchronized, the rail transfer precision and the rail transfer reliability are improved, and the rail transfer cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to an RGV track-changing structure. Background Technology

[0002] In the automated warehousing and logistics industry, RGV (Automated Guided Vehicle) conveyor systems are commonly used to ensure accurate delivery of goods to designated channels. Currently, the commonly used RGV systems are equipped with linear and circular track systems. The combined use of linear and circular tracks can significantly improve transport capacity. However, existing RGV track-changing structures (such as the linear sliding circular shuttle track switch device disclosed in application number 202010717170.7) use multiple drivers to control the translational and rotary track-changing actions separately. This easily leads to incomplete synchronization between the translational and rotary track-changing actions, resulting in poor accuracy and reliability, as well as higher costs. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an RGV track-changing structure to solve the technical problems in the prior art where multiple drivers are used to control the translational and rotational track-changing actions separately, which easily leads to the translational and rotational track-changing actions not being completely synchronized, resulting in poor accuracy and reliability, as well as high cost.

[0004] To achieve the above technical objectives, the present invention provides an RGV track-changing structure, comprising:

[0005] Ring track module;

[0006] A straight rail module is arranged tangentially to the ring rail module;

[0007] A track-changing module is located at the intersection of the ring track module and the straight track module, and includes a translation track and a rotation track.

[0008] A mobile module, connected to the translation track, can alternately reach a first position or a second position;

[0009] A linkage module is connected to the moving module and the rotating track to convert the reciprocating movement of the moving module into the reciprocating rotation of the rotating track. When the moving module reaches the first position, the translation track connects to the straight track module via the rotating track. When the moving module reaches the second position, the translation track connects to the ring track module via the rotating track.

[0010] Furthermore, the ring rail module includes a first ring rail, a second ring rail, and a third ring rail. The first ring rail and the second ring rail form a first ring line, and the third ring rail forms a second ring line. The second ring line and the first ring line are concentrically arranged, and the beginning ends of the first ring rail and the beginning ends of the third ring rail are flush.

[0011] Furthermore, the straight rail module includes a first linear guide rail, a second linear guide rail, a third linear guide rail, a fourth linear guide rail, and a fifth linear guide rail. The first linear guide rail and the second linear guide rail are laid sequentially and at intervals to form a first straight line. The third linear guide rail, the fourth linear guide rail, and the fifth linear guide rail are laid sequentially and at intervals to form a second straight line. The second straight line is arranged parallel to the first straight line. The first annular guide rail is disposed between the first straight line and the second straight line. The second annular guide rail and the third annular guide rail are disposed to the side of the second straight line. The end of the third linear guide rail and the end of the first linear guide rail are flush. The beginning ends of the second linear guide rail, the fourth linear guide rail, the first annular guide rail, and the third annular guide rail are flush.

[0012] Furthermore, the translation track is disposed between the first linear guide rail, the second linear guide rail, the third linear guide rail, and the fourth linear guide rail, and includes a first translation linear guide rail, a second translation linear guide rail, a first translation arcuate guide rail, and a second translation arcuate guide rail. The first translation linear guide rail and the second translation linear guide rail are arranged parallel to each other, and the first translation arcuate guide rail and the second translation arcuate guide rail are arranged concentrically. The first translation arcuate guide rail is disposed between the first translation linear guide rail and the second translation linear guide rail. The moving module is connected to the first translation linear guide rail, the second translation linear guide rail, the first translation arcuate guide rail, and the second translation arcuate guide rail.

[0013] Furthermore, the rotating track is disposed between the fourth linear guide rail, the fifth linear guide rail, the first annular guide rail, and the second annular guide rail. It includes a base, a bearing, and a rotating guide rail. The outer ring of the bearing is fixedly connected to the base, and the bottom of the rotating guide rail is fixedly connected to the inner ring of the bearing. The linkage module is connected to the rotating guide rail. When the moving module reaches the first position, both ends of the first translational linear guide rail are respectively aligned with the end of the first linear guide rail and the beginning of the second linear guide rail. Both ends of the second translational linear guide rail are respectively aligned with the first linear guide rail, the fifth linear guide rail, the first annular guide rail, and the second annular guide rail. The ends of the three linear guides are connected to the beginning of the fourth linear guide. The two ends of the rotating guide are connected to the ends of the fourth linear guide and the beginning of the fifth linear guide, respectively. When the moving module reaches the second position, the two ends of the first translational arc guide are connected to the ends of the first linear guide and the beginning of the first annular guide, respectively. The two ends of the second translational arc guide are connected to the ends of the third linear guide and the beginning of the third annular guide, respectively. The two ends of the rotating guide are connected to the ends of the first annular guide and the beginning of the second annular guide, respectively.

[0014] Furthermore, the moving module includes at least two slide rails, multiple rollers, a moving platform, and a drive assembly. Each slide rail is parallel and spaced apart, and extends along the width direction of the straight rail module. Each roller is tactilely connected to each slide rail. The bottom of the moving platform is fixedly connected to the wheel frame of each roller, and the top of the moving platform is also fixedly connected to the translation rail. The drive assembly is connected to the moving platform and is used to drive the moving platform to move horizontally back and forth along the length direction of the slide rail, so that the moving platform alternately reaches the first position or the second position.

[0015] Furthermore, the longitudinal section of the slide rail is a V-shaped structure with the width gradually increasing from top to bottom, and the two discs of the roller have convex conical structures on their adjacent sides, with the two conical structures rolling and abutting against the two inclined surfaces of the V-shaped structure respectively.

[0016] Furthermore, the drive assembly includes a support frame, a connecting rod, a drive rod, and a rotation drive component. One end of the connecting rod is hinged to one end of the moving platform via a pin, and one end of the drive rod is hinged to the other end of the connecting rod via a pin. The rotation drive component is fixedly connected to the support frame, and the output end of the rotation drive component is fixedly connected to the other end of the drive rod, for driving the drive rod to reciprocate within a preset angle.

[0017] Furthermore, the linkage module includes a connecting plate, a mounting plate, and a needle roller bearing. The connecting plate is horizontally arranged and extends along the length direction of the straight rail module. One end of the connecting plate is fixedly connected to the moving module. The mounting plate is fixedly connected to the rotating track. The lower end of the needle roller bearing is slidably connected to the other end of the connecting plate and can slide along the length direction of the connecting plate. The upper end of the needle roller bearing is rotatably connected to the mounting plate and can rotate around its axis.

[0018] Furthermore, a guide groove extending along its length is provided on the other end of the connecting plate, and the lower end of the needle roller bearing is slidably connected to the guide groove.

[0019] Compared with the prior art, the beneficial effects of this utility model include: during track changing, by manipulating the moving module, the moving module alternately reaches the first position or the second position, thereby allowing the translational track to alternately reach the first position or the second position. Since the linkage module can convert the reciprocating movement of the moving module into the reciprocating rotation of the rotating track, when the moving module reaches the first position, the translational track connects with the straight track module via the rotating track, and when the moving module reaches the second position, the translational track connects with the ring track module via the rotating track. This RGV track changing structure simplifies multiple sets of drives into one set of drives, enabling the translational track changing and the rotational track changing to be linked. The actions of the translational track changing and the rotational track changing can be completely synchronized, improving the track changing accuracy and reliability, and reducing the track changing cost. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the RGV track-changing structure provided by this utility model when it is in a straight rail docking state;

[0021] Figure 2 This is a schematic diagram of the RGV rail-changing structure provided by this utility model when it is in the bent rail docking state;

[0022] Figure 3 yes Figure 2 A schematic diagram of an RGV track-changing structure, omitting the ring rail module, straight rail module, and translation rail;

[0023] In the diagram: 100 - Ring rail module, 110 - First ring rail, 120 - Second ring rail, 130 - Third ring rail, 200 - Straight rail module, 210 - First linear rail, 220 - Second linear rail, 230 - Third linear rail, 240 - Fourth linear rail, 250 - Fifth linear rail, 300 - Track changing module, 310 - Translation rail, 311 - First translation linear rail, 312 - Second translation linear rail, 313 - First translation arc rail Rail, 314 - Second translation arc-shaped guide rail, 320 - Rotating track, 321 - Base, 322 - Bearing, 323 - Rotating guide rail, 400 - Moving module, 410 - Slide rail, 420 - Roller, 430 - Moving platform, 440 - Drive assembly, 441 - Support frame, 442 - Connecting rod, 443 - Drive rod, 444 - Rotating drive component, 500 - Linkage module, 510 - Connecting plate, 511 - Guide groove, 520 - Mounting plate, 530 - Needle roller bearing. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] This utility model provides an RGV track-changing structure, the structure of which is as follows: Figure 1 - Figure 3 As shown, the system includes a ring track module 100, a straight track module 200, a track-changing module 300, a moving module 400, and a linkage module 500. The straight track module 200 is tangentially disposed to the ring track module 100. The track-changing module 300 is disposed at the intersection of the ring track module 100 and the straight track module 200, and includes a translation track 310 and a rotation track 320. The moving module 400 is connected to the translation track 310 and can alternately reach a first position or a second position. The linkage module 500... Module 500 is connected to the moving module 400 and the rotating track 320 to convert the reciprocating movement of the moving module 400 into the reciprocating rotation of the rotating track 320. When the moving module 400 reaches the first position, the translation track 310 docks with the straight track module 200 via the rotating track 320. When the moving module 400 reaches the second position, the translation track 310 docks with the ring track module 100 via the rotating track 320.

[0026] During track changing, the moving module 400 is manipulated to alternately reach the first position or the second position, thereby causing the translational track 310 to alternately reach the first position or the second position. Since the linkage module 500 can convert the reciprocating movement of the moving module 400 into the reciprocating rotation of the rotating track 320, when the moving module 400 reaches the first position, the translational track 310 connects with the straight track module 200 via the rotating track 320. When the moving module 400 reaches the second position, the translational track 310 connects with the ring track module 100 via the rotating track 320. This RGV track changing structure simplifies multiple sets of drives into one set of drives, enabling the translational track changing and the rotational track changing to be linked. The actions of the translational track changing and the rotational track changing can be completely synchronized, improving the track changing accuracy and reliability, and reducing the track changing cost.

[0027] As a preferred embodiment, please refer to Figure 1 and Figure 2 The ring rail module 100 includes a first ring rail 110, a second ring rail 120, and a third ring rail 130. The first ring rail 110 and the second ring rail 120 form a first ring line, and the third ring rail 130 forms a second ring line. The second ring line is concentric with the first ring line. The first ends of the first ring rail 110 and the third ring rail 130 are flush. When the moving module 400 reaches the second position, the translation track 310 will also reach the second position. The translation track 310 can dock with the first ring rail 110 and the third ring rail 130. The rotating track 320 can dock with the first ring rail 110 and the second ring rail 120.

[0028] As a preferred embodiment, please refer to Figure 1 and Figure 2The linear guide module 200 includes a first linear guide rail 210, a second linear guide rail 220, a third linear guide rail 230, a fourth linear guide rail 240, and a fifth linear guide rail 250. The first linear guide rail 210 and the second linear guide rail 220 are laid sequentially and at intervals to form a first straight line. The third linear guide rail 230, the fourth linear guide rail 240, and the fifth linear guide rail 250 are laid sequentially and at intervals to form a second straight line. The second straight line is parallel to the first straight line. A first annular guide rail 110 is disposed between the first straight line and the second straight line. The second annular guide rail 120 and the third annular guide rail 130 are disposed to the side of the second straight line. The end of the third linear guide rail 230 and the end of the first linear guide rail 210 are also located on the second straight line. The ends of the second linear guide 220, the fourth linear guide 240, the first annular guide 110, and the third annular guide 130 are all flush. The distance between the third linear guide 230 and the fourth linear guide 240 is greater than the distance between the fourth linear guide 240 and the fifth linear guide 250. When the moving module 400 reaches the first position, the translation track 310 will also reach the first position. The translation track 310 can dock with the first linear guide 210, the second linear guide 220, the third linear guide 230, and the fourth linear guide 240. The rotating track 320 can dock with the fourth linear guide 240 and the fifth linear guide 250.

[0029] As a preferred embodiment, please refer to Figure 1 and Figure 2The translation track 310 is disposed between the first linear guide rail 210, the second linear guide rail 220, the third linear guide rail 230, and the fourth linear guide rail 240. It includes a first translation linear guide rail 311, a second translation linear guide rail 312, a first translation arc guide rail 313, and a second translation arc guide rail 314. The first translation linear guide rail 311 and the second translation linear guide rail 312 are parallel to each other, and the first translation arc guide rail 313 and the second translation arc guide rail 314 are concentrically arranged. The first translation arc guide rail 313 is disposed between the first translation linear guide rail 311 and the second translation linear guide rail 312. The moving module 400 is connected to all of the first translation linear guide rail 311, the second translation linear guide rail 312, the first translation arc guide rail 313, and the second translation arc guide rail 314. When the moving module 400... When the moving module 400 reaches the first position, the translation track 310 will correspondingly reach the first position. The first translation linear guide 311 will dock with the first linear guide 210 and the second linear guide 220. The second translation linear guide 312 will dock with the third linear guide 230 and the fourth linear guide 240. The rotating track 320 can dock with the fourth linear guide 240 and the fifth linear guide 250. When the moving module 400 reaches the second position, the translation track 310 will correspondingly reach the second position. The first translation arc guide 313 will dock with the first linear guide 210 and the first annular guide 110. The second translation arc guide 314 will dock with the third linear guide 230 and the third annular guide 130. The rotating track 320 can dock with the first annular guide 110 and the second annular guide 120.

[0030] As a preferred embodiment, please refer to Figure 2 and Figure 3The rotating track 320 is disposed between the fourth linear guide 240, the fifth linear guide 250, the first annular guide 110, and the second annular guide 120. It includes a base 321, a bearing 322, and a rotating guide 323. The outer ring of the bearing 322 is fixedly connected to the base 321, and the bottom of the rotating guide 323 is fixedly connected to the inner ring of the bearing 322. The linkage module 500 is connected to the rotating guide 323. When the moving module 400 reaches the first position, the two ends of the first translational linear guide 311 are respectively connected to the end of the first linear guide 210 and the beginning of the second linear guide 220. The two ends of the second translational linear guide 312 are respectively connected to the... The end of the third linear guide 230 and the beginning of the fourth linear guide 240 are connected. The two ends of the rotating guide 323 are connected to the end of the fourth linear guide 240 and the beginning of the fifth linear guide 250, respectively. When the moving module 400 reaches the second position, the two ends of the first translational arc guide 313 are connected to the end of the first linear guide 210 and the beginning of the first annular guide 110, respectively. The two ends of the second translational arc guide 314 are connected to the end of the third linear guide 230 and the beginning of the third annular guide 130, respectively. The two ends of the rotating guide 323 are connected to the end of the first annular guide 110 and the beginning of the second annular guide 120, respectively, thereby realizing track changing.

[0031] As a preferred embodiment, please refer to Figure 2 and Figure 3 The moving module 400 includes at least two slide rails 410, multiple rollers 420, a moving platform 430, and a drive assembly 440. Each slide rail 410 is parallel and spaced apart, extending along the width direction of the straight rail module 200. Each roller 420 is rotatably connected to each slide rail 410 in a one-to-one correspondence. The bottom of the moving platform 430 is fixedly connected to the wheel frame of each roller 420, and the top of the moving platform 430 is also fixedly connected to the translation track 310. The drive assembly... The component 440 is connected to the mobile platform 430 and is used to drive the mobile platform 430 to move horizontally back and forth along the length direction of the slide rail 410, so that the mobile platform 430 alternately reaches the first position or the second position. Through the cooperation of the slide rail 410 and the roller 420, the movement of the mobile platform 430 can be guided, so that the mobile platform 430 can reciprocate linearly along the width direction of the straight rail module 200 under the drive of the drive component 440, thereby realizing track changing.

[0032] As a preferred embodiment, please refer to Figure 1 and Figure 2The top of the mobile platform 430 is fixedly connected to the first translational linear guide rail 311, the second translational linear guide rail 312, the first translational arc guide rail 313, and the second translational arc guide rail 314. When the mobile platform 430 reciprocates linearly along the width direction of the straight rail module 200, it can drive the first translational linear guide rail 311, the second translational linear guide rail 312, the first translational arc guide rail 313, and the second translational arc guide rail 314 to reciprocate linearly along the width direction of the straight rail module 200, thereby realizing track changing.

[0033] As a preferred embodiment, please refer to Figure 3 The longitudinal section of the slide rail 410 is a V-shaped structure with the width gradually increasing from top to bottom. The two discs of the roller 420 have convex conical structures on their adjacent sides. The two conical structures roll and abut against the two inclined surfaces of the V-shaped structure respectively. Since impurities tend to accumulate on traditional tracks, the smoothness of sliding is affected. Setting the longitudinal section of the slide rail 410 to a V-shaped structure with the width gradually increasing from top to bottom can prevent impurities from staying on the track surface and ensure the sliding effect.

[0034] As a preferred embodiment, please refer to Figure 3The drive assembly 440 includes a support frame 441, a connecting rod 442, a drive rod 443, and a rotation drive component 444. One end of the connecting rod 442 is hinged to one end of the moving platform 430 via a pin. One end of the drive rod 443 is hinged to the other end of the connecting rod 442 via a pin. The rotation drive component 444 is fixedly connected to the support frame 441, and its output end is fixedly connected to the other end of the drive rod 443, for driving the drive rod 443 to reciprocate within a preset angle. By manipulating the rotation drive component 444, its output end will reciprocate within the preset angle, thereby driving the drive rod 443 to reciprocate within the preset angle. Since the moving platform 430 is restricted by the slide rail 410, when the drive rod 443 reciprocates within the preset angle, it will... The connecting rod 442 drives the moving platform 430 to reciprocate linearly along the width direction of the straight rail module 200. The start and stop of the rotation drive 444 can be controlled by the control system, and corresponding sensors are configured to monitor the positions of the first translational linear guide 311, the second translational linear guide 312, the first translational arc guide 313, and the second translational arc guide 314 to determine whether the first translational linear guide 311, the second translational linear guide 312, the first translational arc guide 313, and the second translational arc guide 314 have reached the preset position. When the first translational linear guide 311, the second translational linear guide 312, the first translational arc guide 313, and the second translational arc guide 314 reach the preset position, the rotation drive 444 stops under the control of the control system.

[0035] As a preferred embodiment, please refer to Figure 3The linkage module 500 includes a connecting plate 510, a mounting plate 520, and a needle roller bearing 530. The connecting plate 510 is horizontally arranged and extends along the length of the straight rail module 200. One end of the connecting plate 510 is fixedly connected to the moving module 400. The mounting plate 520 is fixedly connected to the rotating track 320. The lower end of the needle roller bearing 530 is slidably connected to the other end of the connecting plate 510 and can slide along the length of the connecting plate 510. The upper end of the needle roller bearing 530 is rotatably connected to the mounting plate 520. It can rotate around its axis. When the moving platform 430 reciprocates linearly along the width direction of the straight rail module 200, it will drive the connecting plate 510 to reciprocate linearly along the width direction of the straight rail module 200. Since the lower end of the needle roller bearing 530 is restricted by the connecting plate 510 and the upper end of the needle roller bearing 530 is restricted by the mounting plate 520, when the connecting plate 510 reciprocates linearly along the width direction of the straight rail module 200, the lower end of the needle roller bearing 530 will reciprocate linearly along the width direction of the straight rail module 200. The connecting plate 510 slides along its length, thereby driving the rotating track 320 to rotate via the mounting plate 520. When the moving platform 430 reaches the first position, the two ends of the first translational linear guide 311 are respectively connected to the end of the first linear guide 210 and the beginning of the second linear guide 220. The two ends of the second translational linear guide 312 are respectively connected to the end of the third linear guide 230 and the beginning of the fourth linear guide 240. The two ends of the rotating guide 323 are respectively connected to the end of the fourth linear guide 240 and the beginning of the third linear guide 230. The first end of the fifth linear guide rail 250 is connected. When the moving module 400 reaches the second position, the two ends of the first translational arc guide rail 313 are connected to the end of the first linear guide rail 210 and the first end of the first annular guide rail 110, respectively. The two ends of the second translational arc guide rail 314 are connected to the end of the third linear guide rail 230 and the first end of the third annular guide rail 130, respectively. The two ends of the rotating guide rail 323 are connected to the end of the first annular guide rail 110 and the first end of the second annular guide rail 120, respectively, thereby realizing track changing.

[0036] As a preferred embodiment, please refer to Figure 3 The other end of the connecting plate 510 is provided with a guide groove 511 extending along its length direction. The lower end of the needle roller bearing 530 is slidably connected to the guide groove 511. The guide groove 511 can guide the lower end of the needle roller bearing 530, thereby converting the reciprocating linear motion of the connecting plate 510 along the width direction of the straight rail module 200 into the reciprocating rotation of the rotating track 320.

[0037] As a preferred embodiment, please refer toFigure 3 One end of the connecting plate 510 is fixedly connected to the mobile platform 430, so that when the mobile platform 430 moves, the connecting plate 510 can move synchronously. The mounting plate 520 is fixedly connected to the end of the rotating guide rail 323, so that when the mounting plate 520 rotates, the rotating guide rail 323 can rotate, thus achieving a linkage effect.

[0038] To better understand this utility model, the following is combined with... Figure 1 - Figure 3 The working principle of the technical solution of this utility model will be described in detail below:

[0039] During track changing, by manipulating the rotation drive 444, the output end of the rotation drive 444 will reciprocate within a preset angle, thereby driving the drive rod 443 to reciprocate within the preset angle. Since the moving platform 430 is restricted by the slide rail 410, when the drive rod 443 reciprocates within the preset angle, it will drive the moving platform 430 to reciprocate linearly along the width direction of the straight rail module 200 via the connecting rod 442, so that the moving platform 430 alternately reaches the first position or the second position, thereby allowing the translation track 310 to alternately reach the first position or the second position. In the second position, when the moving platform 430 reciprocates linearly along the width direction of the straight rail module 200, it will drive the connecting plate 510 to reciprocate linearly along the width direction of the straight rail module 200 simultaneously. Since the lower end of the needle roller bearing 530 is restricted by the guide groove 511 on the connecting plate 510, and the upper end of the needle roller bearing 530 is restricted by the mounting plate 520, when the connecting plate 510 reciprocates linearly along the width direction of the straight rail module 200, the lower end of the needle roller bearing 530 will slide along the guide groove 511, thereby driving the connecting plate 510 via the mounting plate 520. The rotating track 320 rotates to achieve linkage. When the moving platform 430 reaches the first position, the two ends of the first translational linear guide 311 are respectively connected to the end of the first linear guide 210 and the beginning of the second linear guide 220. The two ends of the second translational linear guide 312 are respectively connected to the end of the third linear guide 230 and the beginning of the fourth linear guide 240. The two ends of the rotating guide 323 are respectively connected to the end of the fourth linear guide 240 and the beginning of the fifth linear guide 250. When the moving module 400 reaches the second position, the two ends of the first translational arc-shaped guide 313 are respectively connected to the end of the fourth linear guide 240 and the beginning of the fifth linear guide 250. The first linear guide 210 and the first annular guide 110 are not connected together. The two ends of the second translational arc-shaped guide 314 are connected to the end of the third linear guide 230 and the first end of the third annular guide 130, respectively. The two ends of the rotating guide 323 are connected to the end of the first annular guide 110 and the first end of the second annular guide 120, respectively, thereby realizing track changing. This RGV track changing structure simplifies multiple sets of drives into one set of drives, so that translational track changing and rotational track changing can be linked. The actions of translational track changing and rotational track changing can be completely synchronized, which improves the track changing accuracy and reliability, and reduces the track changing cost.

[0040] The RGV track-changing structure provided by this utility model has the following beneficial effects:

[0041] (1) Since impurities tend to accumulate on traditional tracks, which affects the smoothness of sliding, setting the longitudinal section of the slide rail 410 into a V-shaped structure with the width gradually increasing from top to bottom can prevent impurities from staying on the track surface and ensure the sliding effect.

[0042] (2) When the mobile platform 430 reciprocates linearly along the width direction of the straight rail module 200, it will drive the connecting plate 510 to reciprocate linearly along the width direction of the straight rail module 200. Since the lower end of the needle roller bearing 530 is restricted by the guide groove 511 on the connecting plate 510 and the upper end of the needle roller bearing 530 is restricted by the mounting plate 520, when the connecting plate 510 reciprocates linearly along the width direction of the straight rail module 200, the lower end of the needle roller bearing 530 will slide along the guide groove 511, thereby driving the rotating track 320 to rotate via the mounting plate 520, thus achieving linkage.

[0043] (3) This RGV track changing structure simplifies multiple sets of drives into one set of drives, so that translational track changing and rotational track changing can be linked. The actions of translational track changing and rotational track changing can be completely synchronized, which improves the track changing accuracy and track changing reliability, and reduces the track changing cost.

[0044] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An RGV track-changing structure, characterized in that, include: Ring track module; A straight rail module is arranged tangentially to the ring rail module; A track-changing module is located at the intersection of the ring track module and the straight track module, and includes a translation track and a rotation track. A mobile module, connected to the translation track, can alternately reach a first position or a second position; A linkage module is connected to the moving module and the rotating track to convert the reciprocating movement of the moving module into the reciprocating rotation of the rotating track. When the moving module reaches the first position, the translation track connects to the straight track module via the rotating track. When the moving module reaches the second position, the translation track connects to the ring track module via the rotating track.

2. The RGV track-changing structure according to claim 1, characterized in that, The ring rail module includes a first ring rail, a second ring rail, and a third ring rail. The first ring rail and the second ring rail form a first ring line, and the third ring rail forms a second ring line. The second ring line and the first ring line are concentrically arranged, and the beginning ends of the first ring rail and the beginning ends of the third ring rail are flush.

3. The RGV track-changing structure according to claim 2, characterized in that, The straight rail module includes a first linear guide rail, a second linear guide rail, a third linear guide rail, a fourth linear guide rail, and a fifth linear guide rail. The first and second linear guide rails are laid sequentially and at intervals to form a first straight line. The third, fourth, and fifth linear guide rails are laid sequentially and at intervals to form a second straight line. The second straight line is parallel to the first straight line. A first annular guide rail is disposed between the first and second straight lines. The second and third annular guide rails are disposed to the side of the second straight line. The ends of the third linear guide rail and the first linear guide rail are flush. The beginnings of the second, fourth, first, and third annular guide rails are flush.

4. The RGV track-changing structure according to claim 3, characterized in that, The translation track is disposed between the first linear guide rail, the second linear guide rail, the third linear guide rail, and the fourth linear guide rail. It includes a first translation linear guide rail, a second translation linear guide rail, a first translation arc guide rail, and a second translation arc guide rail. The first translation linear guide rail and the second translation linear guide rail are arranged parallel to each other. The first translation arc guide rail and the second translation arc guide rail are arranged concentrically. The first translation arc guide rail is disposed between the first translation linear guide rail and the second translation linear guide rail. The moving module is connected to the first translation linear guide rail, the second translation linear guide rail, the first translation arc guide rail, and the second translation arc guide rail.

5. The RGV track-changing structure according to claim 4, characterized in that, The rotating track is disposed between the fourth linear guide rail, the fifth linear guide rail, the first annular guide rail, and the second annular guide rail. It includes a base, a bearing, and a rotating guide rail. The outer ring of the bearing is fixedly connected to the base, and the bottom of the rotating guide rail is fixedly connected to the inner ring of the bearing. The linkage module is connected to the rotating guide rail. When the moving module reaches the first position, both ends of the first translational linear guide rail are respectively aligned with the end of the first linear guide rail and the beginning of the second linear guide rail. Both ends of the second translational linear guide rail are respectively aligned with the third linear guide rail. The end of the guide rail is connected to the beginning of the fourth linear guide rail. The two ends of the rotating guide rail are connected to the end of the fourth linear guide rail and the beginning of the fifth linear guide rail, respectively. When the moving module reaches the second position, the two ends of the first translational arc guide rail are connected to the end of the first linear guide rail and the beginning of the first annular guide rail, respectively. The two ends of the second translational arc guide rail are connected to the end of the third linear guide rail and the beginning of the third annular guide rail, respectively. The two ends of the rotating guide rail are connected to the end of the first annular guide rail and the beginning of the second annular guide rail, respectively.

6. The RGV track-changing structure according to claim 1, characterized in that, The moving module includes at least two slide rails, multiple rollers, a moving platform, and a drive assembly. Each slide rail is parallel and spaced apart, and extends along the width direction of the straight rail module. Each roller is rotatably connected to each slide rail. The bottom of the moving platform is fixedly connected to the wheel frame of each roller, and the top of the moving platform is also fixedly connected to the translation rail. The drive assembly is connected to the moving platform and is used to drive the moving platform to move horizontally back and forth along the length direction of the slide rail, so that the moving platform alternately reaches a first position or a second position.

7. The RGV track-changing structure according to claim 6, characterized in that, The longitudinal section of the slide rail is a V-shaped structure with the width gradually increasing from top to bottom. The two discs of the roller have convex conical structures on their adjacent sides, and the two conical structures roll and abut against the two inclined surfaces of the V-shaped structure respectively.

8. The RGV track-changing structure according to claim 7, characterized in that, The drive assembly includes a support frame, a connecting rod, a drive rod, and a rotation drive component. One end of the connecting rod is hinged to one end of the moving platform via a pin, and one end of the drive rod is hinged to the other end of the connecting rod via a pin. The rotation drive component is fixedly connected to the support frame, and the output end of the rotation drive component is fixedly connected to the other end of the drive rod, for driving the drive rod to reciprocate within a preset angle.

9. The RGV track-changing structure according to claim 1, characterized in that, The linkage module includes a connecting plate, a mounting plate, and a needle roller bearing. The connecting plate is horizontally arranged and extends along the length of the straight rail module. One end of the connecting plate is fixedly connected to the moving module. The mounting plate is fixedly connected to the rotating track. The lower end of the needle roller bearing is slidably connected to the other end of the connecting plate and can slide along the length of the connecting plate. The upper end of the needle roller bearing is rotatably connected to the mounting plate and can rotate around its axis.

10. The RGV track-changing structure according to claim 9, characterized in that, The other end of the connecting plate is provided with a guide groove extending along its length, and the lower end of the needle roller bearing is slidably connected to the guide groove.

Images