A telescopic transplanter

Abstract

This utility model discloses a left-right telescopic transplanter, relating to the field of mechanical manufacturing technology. It includes a Z-axis vertical lifting mechanism and a Y-axis left-right telescopic double-layer arm mechanism. The Z-axis vertical lifting mechanism comprises a fixed frame, a base plate, and a mounting seat connected between the fixed frame and the base plate. The mounting seat is equipped with a first driving component, a transmission screw, and four sets of linear ball bearing guides. The first driving component is connected to the transmission screw. The four sets of linear ball bearing guides are evenly distributed around the mounting seat, and the movable ends of each set are connected to the base plate. When the first driving component drives the transmission screw to rotate, it causes the base plate to perform a vertical lifting motion along the linear ball bearing guides in the Z-axis direction. The Y-axis left-right telescopic double-layer arm mechanism comprises a first double-layer arm assembly and a second double-layer arm assembly disposed on both sides of the base plate. A synchronization plate connects the first double-layer arm assembly and the second double-layer arm assembly to ensure accurate material handling.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a left-right telescopic transplanting machine. Background Technology

[0002] In the field of automated transplanting equipment, transplanters need to possess precise spatial movement capabilities to achieve efficient material gripping and transplanting. Currently, most transplanters have shortcomings in the coordination of lifting in the Z-axis direction and telescopic movement in the Y-axis direction.

[0003] The Z-axis lifting mechanism of conventional transplanters often uses simple lead screws or cylinders for driving. When the base plate is raised and lowered, problems such as movement jamming and poor positioning accuracy are easily caused by unreasonable support structure, which affects the accuracy of subsequent transplanting actions. The telescopic mechanism in the Y-axis direction often achieves the movement of both arms through single-side drive or simple synchronization structure, which makes it difficult to ensure the synchronization of the telescopic arms on both sides, resulting in the displacement of the material picking head and reducing the transplanting success rate.

[0004] At the same time, the compatibility between the Z-axis and Y-axis mechanisms of the existing transplanting machine is not good. Under complex working conditions, it is difficult to complete the material transplanting task stably and efficiently, and it cannot meet the requirements of automated production for high precision and high reliability.

[0005] Therefore, there is an urgent need for a transplanter with a more rational structure and better motion coordination to solve the above problems. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A telescopic transplanter includes a Z-axis vertical lifting mechanism and a Y-axis telescopic double-layer arm mechanism.

[0008] The Z-axis lifting mechanism includes a fixed frame, a base plate, and a mounting base connected between the fixed frame and the base plate. The mounting base is equipped with a first driving component, a transmission screw, and four sets of linear ball bearing guides. The first driving component is connected to the transmission screw. The four sets of linear ball bearing guides are evenly distributed around the mounting base, and the movable ends of the four sets of linear ball bearing guides are respectively connected to the base plate. When the first driving component drives the transmission screw to rotate, it drives the base plate to perform a vertical lifting motion along the linear ball bearing guides in the Z-axis direction.

[0009] The Y-axis telescopic double-arm mechanism includes a first double-arm assembly and a second double-arm assembly disposed on both sides of the base plate. A synchronization plate is connected between the first double-arm assembly and the second double-arm assembly. A second driving member and a synchronization rod that are connected to the second driving member via a gear assembly are disposed on the base plate. The two ends of the synchronization rod are respectively connected to the first double-arm assembly and the second double-arm assembly.

[0010] The first and second double-layer arm assemblies are provided with material handling heads on their movable ends.

[0011] As a further embodiment of this utility model: the gear assembly includes a first bevel gear and a second bevel gear. The first bevel gear is connected to the output end of the second drive member, and the second bevel gear is connected to the synchronizing rod. The first bevel gear and the second bevel gear are driven by tooth surface meshing between intersecting shafts to transmit the power of the second drive member to the synchronizing rod.

[0012] As a further embodiment of this utility model: both the first double-layer arm assembly and the second double-layer arm assembly are provided with racks, and both ends of the synchronizing rod are provided with transmission gears that mesh with the corresponding racks;

[0013] When the synchronizing rod is driven to rotate by the gear assembly, the transmission gears at both ends of the rod mesh with the rack, thereby driving the first double-layer arm assembly and the second double-layer arm assembly to move left and right synchronously.

[0014] As a further embodiment of this utility model: a plurality of bearing seats are spaced apart at the bottom end of the base plate along the axis of the synchronizing rod, and the synchronizing rod is rotatably connected in the bearing seats through rolling bearings.

[0015] As a further embodiment of this utility model: both the first double-layer arm assembly and the second double-layer arm assembly include a fixed guide rail and a telescopic arm assembly movably connected to the fixed guide rail, wherein the material picking head is provided on the movable end of the telescopic arm assembly.

[0016] As a further embodiment of this utility model: the two ends of the synchronization plate are rigidly connected to the telescopic arm groups of the first double-layer arm assembly and the second double-layer arm assembly, respectively.

[0017] The synchronization plate moves synchronously with the telescopic arm assembly during its extension and retraction, and constrains the relative positions of the first double-layer arm assembly and the second double-layer arm assembly through a rigid connection.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The Z-axis drives the base plate to rise and fall smoothly through a transmission screw and linear ball guide rails. When the transmission screw rotates, the screw and nut pair converts the rotational motion into linear motion. Combined with the guiding effect of four sets of linear ball guide rails, the stability of the base plate lifting process is ensured.

[0020] The Y-axis uses a synchronizing rod and gear assembly to drive the two-layer arm assemblies on both sides to extend and retract synchronously. The synchronizing plate rigidly connects the telescopic arm assemblies of the two assemblies. Through the coordinated action of the Z-axis and Y-axis, the material picking head maintains a precise trajectory during lifting and translation, avoids material deviation, and ensures the stability and positioning accuracy of the transplanting action.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram from one perspective of the present invention;

[0024] Figure 2 This is a structural schematic diagram from another perspective of this utility model;

[0025] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0026] Figure 4 This is a structural schematic diagram from another perspective of the present invention;

[0027] Figure 5 yes Figure 4 A magnified structural diagram at point B in the middle.

[0028] The reference numerals and names in the figure are as follows:

[0029] 1. Fixed frame; 2. Base plate; 3. Mounting seat; 4. First drive component; 5. Transmission screw; 6. Linear ball guide rail; 7. First double-layer arm assembly; 8. Second double-layer arm assembly; 9. Synchronizing plate; 10. Second drive component; 11. Synchronizing rod; 12. First bevel gear; 13. Second bevel gear; 14. Rack; 15. Transmission gear; 16. Bearing seat; 17. Rolling bearing; 18. Fixed guide rail; 19. Telescopic arm assembly; 20. First telescopic arm; 21. Second telescopic arm. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-5In this embodiment of the utility model, a left-right telescopic transplanter is mainly composed of a Z-axis up-and-down lifting mechanism and a Y-axis left-right telescopic double-layer arm mechanism.

[0032] The Z-axis lifting mechanism includes a fixed frame 1, a base plate 2, and a mounting base 3. The mounting base 3 has a frame structure, is located within the fixed frame 1, and extends towards the base plate 2. A first drive component 4 is mounted at the center of the top plane of the mounting base 3. This drive component can be a servo motor or a stepper motor, and its output shaft is coaxially connected to a transmission lead screw 5 via a coupling. The other end of the transmission lead screw 5 is connected to the fixed frame 1 via a lead screw seat, which contains a deep groove ball bearing to support the rotational movement of the lead screw.

[0033] Four sets of linear ball bearing guides 6 are evenly distributed along the four corners of the mounting base 3. Each set of linear ball bearing guides 6 consists of a guide body and a slider. The guide body is connected to the four corners of the mounting base 3, and the length direction of the guide body is consistent with the Z-axis direction. The slider is connected to the base plate 2, or connected to the base plate 2 through a connector. When the first drive unit 4 is activated, it drives the transmission screw 5 to rotate. The screw and nut pair converts the rotational motion of the screw into linear motion, thereby driving the base plate 2 to perform up-and-down lifting motion along the four sets of linear ball bearing guides 6 in the Z-axis direction. The linear ball bearing guides 6 effectively reduce frictional resistance during the movement, improving the stability and positioning accuracy of the base plate 2.

[0034] The Y-axis telescopic double-arm mechanism is installed on both sides of the base plate 2, and includes a first double-arm assembly 7 and a second double-arm assembly 8 arranged symmetrically. Each double-arm assembly consists of a fixed guide rail 18 and telescopic arm assemblies 19 (first telescopic arm 20 and second telescopic arm 21). The fixed guide rail 18 is fixed to the side of the base plate 2 by bolts, serving as a support frame for telescopic movement.

[0035] The second driving component 10 on the base plate 2 drives the synchronous rod 11 to rotate via a bevel gear assembly. The transmission gears 15 at both ends of the synchronous rod 11 mesh with the racks 14 on the first telescopic arm 20 in the first double-layer arm assembly 7 and the second double-layer arm assembly 8, causing the first telescopic arm 20 to extend and retract left and right along the fixed guide rail 18. The first telescopic arm 20 and the second telescopic arm 21 are connected by a chain transmission mechanism. When the first telescopic arm 20 moves under the drive of the synchronous rod 11, the chain transmission mechanism will drive the second telescopic arm 21 to extend and retract synchronously. It can be understood that the first telescopic arm 20 is the outer telescopic arm and the second telescopic arm 21 is the inner telescopic arm, forming a nested double-layer telescopic structure. The end of the second telescopic arm 21 away from the first telescopic arm 20 is equipped with a material-grabbing head (not shown). The material-grabbing head can be selected from different structures such as gripper type and suction cup type according to the material type, and is used to grab the material.

[0036] In the Y-axis telescopic double-arm mechanism, the base plate 2 is also equipped with a second drive component 10, a gear assembly, and a synchronizing rod 11. The second drive component 10 can also be a servo motor or a stepper motor, and its output shaft is connected to the first bevel gear 12 via a key. The first bevel gear 12 and the second bevel gear 13 are arranged at 90° intersections and are driven by tooth surface meshing. The second bevel gear 13 is connected to the middle of the synchronizing rod 11 via a key. The synchronizing rod 11 is arranged laterally along the width direction of the base plate 2, and its two ends pass through a plurality of bearing seats 16. The bearing seats 16 are fixed at intervals to the bottom of the base plate 2 along the axial direction of the synchronizing rod 11. Each bearing seat 16 is equipped with a rolling bearing 17. The inner ring of the rolling bearing 17 is interference-fitted with the synchronizing rod 11, and the outer ring is transition-fitted with the hole of the bearing seat 16. The bearing seat 16 is fixed to the base plate 2 by bolts.

[0037] The synchronizing rod 11 has transmission gears 15 at both ends, which mesh with racks 14 on the first double-layer arm assembly 7 and the second double-layer arm assembly 8. When the second driving member 10 is started, power is transmitted to the synchronizing rod 11 through the meshing of the first bevel gear 12 and the second bevel gear 13. The rotation of the synchronizing rod 11 drives the transmission gears 15 at both ends to rotate. The meshing of the transmission gears 15 and the racks 14 converts the rotational motion into linear motion, thereby driving the first double-layer arm assembly 7 and the second double-layer arm assembly 8 to move left and right synchronously.

[0038] To ensure synchronized operation of the first double-arm assembly 7 and the second double-arm assembly 8, a synchronization plate 9 is provided between the two double-arm assemblies. The synchronization plate 9 is a rectangular metal plate, with both ends rigidly connected to the first telescopic arms 20 of the two double-arm assemblies by bolts. When the telescopic arm assembly 19 extends or retracts, the synchronization plate 9 moves synchronously. Due to the rigid connection characteristics of the synchronization plate 9, the relative position of the two double-arm assemblies can be effectively constrained, avoiding asynchronous movement caused by uneven force on both sides or transmission errors, and further ensuring the positioning accuracy of the material handling head during the transfer process.

[0039] In summary:

[0040] The Z-axis drives the base plate 2 to rise and fall smoothly through the transmission screw 5 and linear ball guide rails 6. When the transmission screw 5 rotates, the screw and nut pair converts the rotational motion into linear motion. With the guidance of the four sets of linear ball guide rails 6, the stability of the base plate 2 during the lifting process is ensured.

[0041] The Y-axis uses a synchronizing rod 11 to drive the two-layer arm assemblies on both sides to extend and retract synchronously via a gear assembly. The synchronizing plate 9 rigidly connects the telescopic arm assembly 19 of the two assemblies. Through the coordinated action of the Z-axis and Y-axis, the material picking head maintains a precise trajectory during lifting and translation, avoids material deviation, and ensures the stability and positioning accuracy of the transplanting action.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A left and right telescopic transplanter characterized by, It includes a Z-axis vertical lifting mechanism and a Y-axis horizontal telescopic double-layer arm mechanism; The Z-axis lifting mechanism includes a fixed frame, a base plate, and a mounting base connected between the fixed frame and the base plate. The mounting base is equipped with a first driving component, a transmission screw, and four sets of linear ball bearing guides. The first driving component is connected to the transmission screw. The four sets of linear ball bearing guides are evenly distributed around the mounting base, and the movable ends of the four sets of linear ball bearing guides are respectively connected to the base plate. When the first driving component drives the transmission screw to rotate, it drives the base plate to perform a vertical lifting motion along the linear ball bearing guides in the Z-axis direction. The Y-axis telescopic double-arm mechanism includes a first double-arm assembly and a second double-arm assembly disposed on both sides of the base plate. A synchronization plate is connected between the first double-arm assembly and the second double-arm assembly. A second driving member and a synchronization rod that are connected to the second driving member via a gear assembly are disposed on the base plate. The two ends of the synchronization rod are respectively connected to the first double-arm assembly and the second double-arm assembly. The first and second double-layer arm assemblies are provided with material handling heads on their movable ends.

2. The left-right telescopic transplanter according to claim 1, characterized in that, The gear assembly includes a first bevel gear and a second bevel gear. The first bevel gear is connected to the output end of the second drive member, and the second bevel gear is connected to the synchronizing rod. The first bevel gear and the second bevel gear are driven by tooth surface meshing between intersecting shafts to transmit the power of the second drive member to the synchronizing rod.

3. The left-right telescopic transplanter according to claim 1, characterized in that, Both the first double-layer arm assembly and the second double-layer arm assembly are provided with racks, and both ends of the synchronizing rod are provided with transmission gears that mesh with the corresponding racks; When the synchronizing rod is driven to rotate by the gear assembly, the transmission gears at both ends of the rod mesh with the rack, thereby driving the first double-layer arm assembly and the second double-layer arm assembly to move left and right synchronously.

4. The left-right telescopic transplanter according to claim 1, characterized in that, The bottom end of the base plate is connected to a plurality of bearing seats at intervals along the axis of the synchronizing rod, and the synchronizing rod is rotatably connected to the bearing seats through rolling bearings.

5. The right and left telescopic transplanter according to any one of claims 1 to 3, characterized in that, Both the first double-layer arm assembly and the second double-layer arm assembly include a fixed guide rail and a telescopic arm assembly movably connected to the fixed guide rail, wherein the material handling head is provided on the movable end of the telescopic arm assembly.

6. The left-right telescopic transplanter according to claim 5, characterized in that, The two ends of the synchronization plate are rigidly connected to the telescopic arm groups of the first double-layer arm assembly and the second double-layer arm assembly, respectively. The synchronization plate moves synchronously with the telescopic arm assembly during its extension and retraction, and constrains the relative positions of the first double-layer arm assembly and the second double-layer arm assembly through a rigid connection.

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