Gantry double-drive structure

Abstract

The invention relates to the technical field of automation equipment, in particular to a gantry double-drive structure which comprises two sets of longitudinal moving devices arranged in parallel left and right and two sets of transverse moving devices arranged in parallel front and back, and connecting devices are arranged between the ends of the longitudinal moving devices and the transverse moving devices. According to the gantry double-drive structure, after the driving motor in the driving part is started, the positions of the moving part and the inserting part can be driven to change, the mounting plate and the butt-joint plate are quickly fixed, then the transverse moving device and the longitudinal moving device are quickly mounted, the mounting process is simplified, and meanwhile follow-up overhaul and maintenance are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of automated equipment, and more specifically, to a gantry dual-drive structure. Background Art

[0002] At present, high-precision automated equipment in China has very high requirements for precision. For large-format high-precision machining, it is necessary to adopt a linear motor with gantry dual-drive for design. It adopts a bilateral drive method, and two independent linear motors are used to control the horizontal and vertical movements of the crossbeam respectively, realizing high-precision XY plane movement. This structure can ensure uniform force on the crossbeam and is not easy to deform, thereby improving cutting accuracy and dynamic performance.

[0003] The patent with the publication number CN214134875U discloses a gantry dual-drive structure, including a pair of parallel bases. The top of the base is provided with a sliding seat that slides back and forth through a slide rail. A crossbeam with a hollow design is arranged between the two bases. The crossbeam is perpendicular to the base. Both ends of the crossbeam are respectively connected to the sliding seat. Guide rails are respectively installed on the side and top surfaces of the crossbeam. The installation surfaces of the two guide rails are perpendicular to each other. A motor seat is installed on the crossbeam. The motor seat is slidably installed on the crossbeam in cooperation with the guide rails on the side wall and the top surface. The two guide rails on the crossbeam are installed vertically, which can enhance rigidity and reduce volume, facilitating the handling and assembly of the equipment. The crossbeam adopts a hollow design to reduce weight and improve the movement speed of the equipment and the processing speed of the equipment.

[0004] The installation accuracy between the crossbeam and the base in the gantry dual-drive structure has an important impact on the performance of the overall structure. If the installation is inaccurate, it may lead to uneven gaps between the guide rail and the slider, affecting the movement accuracy and stability of the overall structure. However, fixing the crossbeam and the base with multiple groups of bolts not only takes a lot of time during installation but also is not conducive to subsequent maintenance.

[0005] In view of this, we propose a gantry dual-drive structure.

[0006] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0007] The purpose of the present invention is to provide a gantry dual-drive structure to solve the problems raised in the above background art.

[0008] To achieve the above purpose, the present invention provides the following technical solutions: A gantry dual-drive structure includes two sets of longitudinally moving devices arranged parallel to each other left and right, and two sets of laterally moving devices arranged parallel to each other front and back. The longitudinally moving device includes a longitudinally moving part and two mounting plates arranged at the front and rear ends of the longitudinally moving part. The laterally moving device includes a vertically arranged guide rail, a vertical limiting part arranged outside the vertically arranged guide rail, and a laterally moving part arranged between the vertically arranged guide rail and the vertical limiting part. A connecting device is provided between the end of the longitudinally moving device and the laterally moving device. The connecting device includes two symmetrically arranged docking plates and a quick installation and disassembly mechanism arranged between the two docking plates. The quick installation and disassembly mechanism includes a connecting bin body, a driving part arranged inside the connecting bin body, moving parts arranged at the left and right ends of the driving part, and inserting parts arranged at the positions near the corners inside the connecting bin body. The driving part includes a driving motor, a driving shaft arranged on the output shaft of the driving motor, and a bidirectional lead screw that rotates as the driving shaft rotates. The moving part includes a moving cross plate sleeved outside the bidirectional lead screw and a number of plate inserting rods arranged on the outer side wall of the moving cross plate. The inserting part includes an inserting tube, a number of movable plates regularly arranged inside the inserting tube, a rubber strip that changes as the position of the movable plate changes, and a second pressure spring arranged on the outer side wall of the inserting tube.

[0009] In the technical solution of the present invention, the mounting plate is fixedly connected to the top surface of the moving platform inside the longitudinally moving part by bolts. A number of regularly distributed card slots are opened on the top surface of the mounting plate, and a number of left-right through mounting plate holes are opened inside the mounting plate.

[0010] In the technical solution of the present invention, the vertically arranged guide rail includes a vertically arranged cross beam perpendicular to the longitudinally moving part, limit switches arranged on the top surfaces of the left and right ends of the vertically arranged cross beam, two vertically arranged guide rails arranged in parallel up and down on the outer side wall of the vertically arranged cross beam, a longitudinally arranged stator arranged between the two vertically arranged guide rails, and a second position sensing strip arranged on the top surface of the vertically arranged cross beam.

[0011] In the technical solution of the present invention, the longitudinal cross section of the vertically arranged cross beam is in an inverted T shape. A number of regularly distributed and left-right through hollow slots are opened inside the vertically arranged cross beam. The limit switch is fixedly connected to the top surface of the vertically arranged cross beam by bolts. The vertically arranged guide rail and the longitudinally arranged stator are both fixedly connected to the outer side wall of the vertically arranged cross beam by bolts. The position sensing strip is snap-fitted and fixed to the top surface of the vertically arranged cross beam.

[0012] In the technical solution of the present invention, the docking plate is fixedly connected to the bottom surface of the vertical cross beam by bolts. The size of the docking plate is adapted to the size of the mounting plate. A number of docking plate holes penetrating from left to right are provided inside the docking plate. The left and right ends of the connecting bin body are respectively clamped and fixed on the outer side walls of the docking plates at the left and right ends.

[0013] In the technical solution of the present invention, the driving motor is fixedly connected to the bottom surface of the connecting bin body by bolts. The driving shaft is coaxially connected to the output shaft of the driving motor, and the top end of the driving shaft is rotatably connected to the inner top surface of the connecting bin body.

[0014] In the technical solution of the present invention, a shaft body worm gear is fixedly connected to the outer side wall of the driving shaft by a retaining pin. The left and right ends of the bidirectional lead screw are rotatably connected to the inner side walls at the left and right ends of the connecting bin body, and a worm gear meshing with the shaft body worm gear is integrally formed on the outer side wall of the bidirectional lead screw.

[0015] In the technical solution of the present invention, the moving cross plate is slidably connected to the inside of the connecting bin body. The moving cross plate is threadedly connected to the bidirectional lead screw. The plate body insertion rod is welded and fixed to the outer side wall of the moving cross plate, and the end of the plate body insertion rod is in a frustum shape.

[0016] In the technical solution of the present invention, the external dimension of the insertion tube is adapted to the size of the docking plate hole. A number of pipe wall grooves for placing rubber strips are provided on the outer side wall of the insertion tube. A number of regularly distributed connecting rods are provided between the movable plate and the rubber strip. The rubber strip is slidably connected to the inside of the pipe wall groove on the outer side wall of the insertion tube. A first pressure spring is sleeved on the outer side wall of the connecting rod, and both ends of the first pressure spring are respectively abutted against the inner pipe wall of the insertion tube and the outer side wall of the movable plate.

[0017] In the technical solution of the present invention, the second pressure spring is sleeved on the outer side wall of the plate body insertion rod. One end of the second pressure spring is adhesively fixed to the outer side wall of the insertion tube, and the other end of the second pressure spring is adhesively fixed to the outer side wall of the moving cross plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. For this gantry double-drive structure, the longitudinal section of the vertical cross beam in the vertical guide rail is in an inverted T shape. The T-shaped design enables the upper and lower flanges of the vertical cross beam to more effectively resist bending stress, while the middle web provides good resistance to shear force, so that the vertical cross beam has higher bending strength and stiffness under the same material consumption.

[0019] 2. After starting the drive motor in the gantry dual-drive structure, the positions of the moving part and the insertion part can be changed, so as to quickly fix the mounting plate and the docking plate, and then quickly install the lateral moving device and the longitudinal moving device, simplifying the installation process and facilitating subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the longitudinal moving device in the present invention; Figure 3 is a schematic diagram of the structure of the mounting plate in the present invention; Figure 4 is a schematic diagram of the structure of the lateral moving device in the present invention; Figure 5 is a schematic diagram of the structure of the vertical guide rail in the present invention; Figure 6 is a schematic diagram of the structure of the connecting device in the present invention; Figure 7 is a schematic diagram of the structure of the docking plate in the present invention; Figure 8 is a schematic sectional view of the structure of the quick assembly and disassembly mechanism in the present invention; Figure 9 is a schematic diagram of the structure of the drive part in the present invention; Figure 10 is a schematic diagram of the structure of the moving part in the present invention; Figure 11 is a schematic sectional view of the structure of the insertion part in the present invention; Figure 12 is a schematic sectional view of the structure of the insertion tube in the present invention; Figure 13 is a partial schematic diagram of the structure of the insertion part in the present invention; Description of the reference numerals: 100, longitudinal moving device; 110, longitudinal moving part; 120, mounting plate; 121, mounting plate hole; 200, lateral moving device; 210, vertical guide rail; 211, vertical cross beam; 2110, hollow groove; 212, limit switch; 213, vertical guide rail; 214, longitudinal stator; 215, position sensing strip; 220, vertical limiting part; 230, transverse moving part; 300, Connecting device; 310, Docking plate; 311, Docking plate hole; 320, Quick installation and disassembly mechanism; 321, Connecting bin body; 322, Driving part; 3220, Driving motor; 3221, Driving shaft; 3222, Shaft body worm gear; 3223, Bi-directional lead screw; 3224, Worm; 323, Moving part; 3230, Moving cross plate; 3231, Plate body inserting rod; 324, Inserting part; 3240, Inserting tube; 3241, Movable plate; 3242, Rubber strip; 3243, Connecting rod; 3244, First pressure spring; 3245, Second pressure spring. Detailed implementation manner

[0021] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-10 As shown, this embodiment provides a technical solution: A gantry double-drive structure includes two sets of longitudinal moving devices 100 arranged parallel to each other left and right and two sets of transverse moving devices 200 arranged parallel to each other front and back. The longitudinal moving device 100 includes a longitudinal moving part 110 and two mounting plates 120 arranged at the front and rear ends of the longitudinal moving part 110. In the present invention, the mounting plate 120 is fixedly connected to the top surface of the moving platform inside the longitudinal moving part 110 through bolts. A number of regularly distributed card slots are provided on the top surface of the mounting plate 120, and a number of left-right through mounting plate holes 121 are provided inside the mounting plate 120. Further, the moving platform in the longitudinal moving part 110 is used to provide an installation platform for the mounting plate 120 and at the same time drive the entire transverse moving device 200 to move.

[0023] In the present invention, the transverse moving device 200 includes a vertically arranged guide rail 210, a vertical limiting part 220 arranged outside the vertically arranged guide rail 210, and a transverse moving part 230 arranged between the vertically arranged guide rail 210 and the vertical limiting part 220. Specifically, the vertically arranged guide rail 210 includes a vertically arranged cross beam 211 perpendicular to the longitudinal moving part 110, limit switches 212 arranged on the top surfaces of the left and right ends of the vertically arranged cross beam 211, two vertically arranged guide rails 213 arranged in parallel on the outer side walls of the vertically arranged cross beam 211, a longitudinally arranged stator 214 arranged between the two vertically arranged guide rails 213, and a second position sensing strip 215 arranged on the top surface of the vertically arranged cross beam 211.

[0024] Further, the longitudinal section of the vertically arranged cross beam 211 is in an inverted T shape. A number of regularly distributed and left-right through hollow slots 2110 are formed inside the vertically arranged cross beam 211. The limit switch 212 is fixedly connected to the top surface of the vertically arranged cross beam 211 by bolts. The vertically arranged guide rail 213 and the longitudinally arranged stator 214 are both fixedly connected to the outer side wall of the vertically arranged cross beam 211 by bolts. The position sensing strip 215 is snap-fitted and fixed to the top surface of the vertically arranged cross beam 211.

[0025] Further, the vertically arranged cross beam 211 is used to ensure the strength of the overall structure of the vertically arranged guide rail 210. At the same time, due to the T-shaped design of the vertically arranged cross beam 211, the upper and lower flanges of the vertically arranged cross beam 211 can more effectively resist bending stress, while the middle web provides good resistance to shear force, enabling the vertically arranged cross beam 211 to have higher bending strength and stiffness with the same amount of material used. The hollow slots 2110 are used to reduce the weight of the overall structure of the vertically arranged cross beam 211. The vertically arranged guide rail 213 and the longitudinally arranged stator 214 are used to lower the center of gravity of the equipment and reduce the volume of the equipment. The limit switch 212 cooperates with the position sensing strip 215 to limit the moving range of the transverse moving part 230, and the vertical limiting part 220 ensures the stability when the transverse moving part 230 moves.

[0026] In this embodiment, as Figures 6-7 shown, a connecting device 300 is provided between the end of the longitudinal moving device 100 and the transverse moving device 200; the connecting device 300 includes two groups of symmetrically arranged docking plates 310 and a quick installation and disassembly mechanism 320 arranged between the two groups of docking plates 310; Specifically, the docking plates 310 are fixedly connected to the bottom surface of the vertically arranged cross beam 211 by bolts. The size of the docking plates 310 is adapted to the size of the mounting plate 120. A number of left-right through docking plate holes 311 are formed inside the docking plates 310. The left and right ends of the connecting bin body 321 are respectively snap-fitted and fixed to the outer side walls of the left and right docking plates 310.

[0027] Further, the docking plates 310 are used to cooperate with the mounting plate 120 to facilitate the docking of the entire connecting device 300 with the two groups of longitudinal moving devices 100.

[0028] In this embodiment, as Figures 8-13 shown, the quick installation and disassembly mechanism 320 includes a connecting bin body 321, a driving part 322 arranged inside the connecting bin body 321, moving parts 323 arranged at the left and right ends of the driving part 322, and insertion parts 324 arranged at the positions near the corners inside the connecting bin body 321; Specifically, the driving part 322 includes a driving motor 3220, a driving shaft 3221 arranged on the output shaft of the driving motor 3220, and a bidirectional lead screw 3223 that rotates as the driving shaft 3221 rotates.

[0029] Further, the driving motor 3220 is fixedly connected to the bottom surface of the connection bin 321 by bolts. The driving shaft 3221 is coaxially connected to the output shaft of the driving motor 3220, and the top end of the driving shaft 3221 is rotatably connected to the inner top surface of the connection bin 321.

[0030] Further, a shaft body worm gear 3222 is fixedly connected to the outer side wall of the driving shaft 3221 by a retaining pin. The left and right ends of the bidirectional lead screw 3223 are rotatably connected to the inner side walls of the left and right ends of the connection bin 321. A worm 3224 meshing with the shaft body worm gear 3222 is integrally formed on the outer side wall of the bidirectional lead screw 3223.

[0031] Further, after the driving motor 3220 rotates, it drives the driving shaft 3221 to rotate, and then drives the shaft body worm gear 3222 to rotate. After the shaft body worm gear 3222 contacts the worm 3224, it drives the worm 3224 and the bidirectional lead screw 3223 to rotate together.

[0032] In this embodiment, as Figure 10 shown, the moving part 323 includes a moving cross plate 3230 sleeved on the outer side of the bidirectional lead screw 3223 and a plurality of plate body insertion rods 3231 arranged on the outer side wall of the moving cross plate 3230; Specifically, the moving cross plate 3230 is slidably connected to the inside of the connection bin 321. The moving cross plate 3230 is threadedly connected to the bidirectional lead screw 3223. The plate body insertion rods 3231 are welded and fixed to the outer side wall of the moving cross plate 3230, and the end of the plate body insertion rod 3231 is in a frustum shape.

[0033] Further, after the bidirectional lead screw 3223 rotates, the moving cross plate 3230 in the moving part 323 immediately moves inside the connection bin 321.

[0034] In this embodiment, as Figures 11-13 shown, the insertion part 324 includes an insertion tube 3240, a plurality of groups of movable plates 3241 regularly arranged inside the insertion tube 3240, a rubber strip 3242 that changes as the position of the movable plate 3241 changes, and a second pressure spring 3245 arranged on the outer side wall of the insertion tube 3240; Specifically, the outer dimensions of the insertion tube 3240 are adapted to the dimensions of the docking plate hole 311. A plurality of pipe wall grooves for placing the rubber strip 3242 are formed on the outer side wall of the insertion tube 3240. A plurality of regularly distributed connecting rods 3243 are arranged between the movable plate 3241 and the rubber strip 3242. The rubber strip 3242 is slidably connected to the inside of the pipe wall groove on the outer side wall of the insertion tube 3240. A first pressure spring 3244 is sleeved on the outer side wall of the connecting rod 3243, and the two ends of the first pressure spring 3244 are respectively in contact with the inner pipe wall of the insertion tube 3240 and the outer side wall of the movable plate 3241.

[0035] Further, the second pressure spring 3245 is sleeved on the outer wall of the plate body insertion rod 3231. One end of the second pressure spring 3245 is adhesively fixed to the outer wall of the insertion tube 3240, and the other end of the second pressure spring 3245 is adhesively fixed to the outer wall of the moving cross plate 3230.

[0036] Further, the insertion tube 3240 connected to the moving cross plate 3230 through the second pressure spring 3245 is then inserted into the interior of the docking plate hole 311 in the docking plate 310. When the top end of the insertion tube 3240 abuts against the hole wall of the docking plate hole 311, the second pressure spring 3245 contracts under the action of the continuously moving moving cross plate 3230, and the plate body insertion rod 3231 is further moved towards the interior of the insertion tube 3240. After the plate body insertion rod 3231 abuts against the movable plate 3241, the movable plate 3241 is driven to move upward, and the top end of the rubber strip 3242 is driven to extend outside the insertion tube 3240 and abut against the hole walls of the mounting plate hole 121 and the docking plate hole 311, thereby quickly completing the fixation between the lateral moving device 200 and the longitudinal moving device 100.

[0037] Finally, it should be noted that the drive motor 3220 involved in the present invention is a general standard part or a component known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or by conventional experimental methods. At the idle place of the present device, the drive motor 3220 is connected to an external power supply through a wire. The specific connection means should refer to the working principle of the present invention, and the electrical components are electrically connected in accordance with the sequence of working. The detailed connection means are all well-known technologies in the art.

[0038] When the gantry dual-drive structure of the present invention is in use, first, the docking plate 310 in the connecting device 300 is inserted into the top surface of the mounting plate 120 in the longitudinal moving device 100. Next, the drive motor 3220 in the drive part 322 of the connecting device 300 is started, driving the drive shaft 3221 to rotate, and driving the shaft body worm gear 3222 to rotate. After the shaft body worm gear 3222 contacts the worm 3224, the worm 3224 together with the bidirectional lead screw 3223 is driven to rotate. After the bidirectional lead screw 3223 rotates, the moving cross plate 3230 in the moving part 323 then moves inside the connecting bin body 321. The insertion tube 3240 connected to the moving cross plate 3230 through the second pressure spring 3245 is then inserted into the interior of the docking plate hole 311 in the docking plate 310. When the top end of the insertion tube 3240 abuts against the hole wall of the docking plate hole 311, the second pressure spring 3245 contracts under the action of the continuously moving moving cross plate 3230, and the plate body insertion rod 3231 is further moved towards the interior of the insertion tube 3240. After the plate body insertion rod 3231 abuts against the movable plate 3241, it drives the movable plate 3241 to move upward, and drives the top of the rubber strip 3242 to extend to the outside of the insertion tube 3240, abutting against the hole walls of the mounting plate hole 121 and the docking plate hole 311, so as to quickly complete the fixation between the lateral moving device 200 and the longitudinal moving device 100; Subsequently, after the current is connected to the lateral movement part 230 in the lateral moving device 200, the lateral movement part 230 can move outside the vertical guide rail 210.

[0039] The foregoing description of the specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is obvious that many changes and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the specification and its equivalents.

Claims

1. A gantry dual-drive structure, comprising two groups of longitudinal moving devices (100) arranged in parallel left and right, and two groups of transverse moving devices (200) arranged in parallel front and back, wherein the longitudinal moving device (100) comprises a longitudinal moving part (110) and two groups of mounting plates (120) arranged at the front and rear ends of the longitudinal moving part (110); The lateral movement device (200) comprises a vertical guide rail (210), a vertical limit portion (220) arranged outside the vertical guide rail (210), and a lateral movement portion (230) arranged between the vertical guide rail (210) and the vertical limit portion (220); Features: A connecting device (300) is provided between the end of the longitudinal moving device (100) and the transverse moving device (200); the connecting device (300) comprises two groups of symmetrically arranged butt joint plates (310) and a quick assembly and disassembly mechanism (320) arranged between the two groups of butt joint plates (310); The quick assembly and disassembly mechanism (320) comprises a connecting warehouse body (321), a driving portion (322) arranged inside the connecting warehouse body (321), moving portions (323) arranged at left and right ends of the driving portion (322), and an insertion portion (324) arranged near a corner inside the connecting warehouse body (321); The driving part (322) comprises a driving motor (3220), a driving shaft (3221) arranged on the output shaft of the driving motor (3220), and a bidirectional screw rod (3223) that rotates as the driving shaft (3221) rotates; The moving part (323) comprises a moving horizontal plate (3230) sleeved on the outside of the bidirectional screw rod (3223) and a plurality of plate body inserting rods (3231) arranged on the outer side wall of the moving horizontal plate (3230); The insertion portion (324) includes an insertion tube (3240), a plurality of movable plates (3241) regularly arranged inside the insertion tube (3240), a rubber strip (3242) that changes with the position of the movable plate (3241), and a second pressure spring (3245) arranged on the outer wall of the insertion tube (3240).

2. The gantry dual-drive structure according to claim 1, characterized in that: The mounting plate (120) is fixedly connected to the top surface of the internal moving platform of the longitudinal moving part (110) by means of bolts, a plurality of regularly distributed slots are provided on the top surface of the mounting plate (120), and a plurality of left-right penetrating mounting plate holes (121) are provided inside the mounting plate (120).

3. The gantry dual-drive structure according to claim 1, characterized in that: The vertical guide rail (210) comprises a vertical crossbeam (211) arranged perpendicular to the longitudinal moving portion (110), a limit switch (212) arranged on the top surfaces of the left and right ends of the vertical crossbeam (211), two vertical guide rails (213) arranged in parallel on the outer side wall of the vertical crossbeam (211), a longitudinal stator (214) arranged between the two vertical guide rails (213), and a second position sensing strip (215) arranged on the top surface of the vertical crossbeam (211).

4. The gantry dual-drive structure according to claim 3 is characterized in that: The vertical cross-beam (211) has a longitudinal cross-section in an inverted T-shape. A plurality of regularly distributed hollow grooves (2110) are provided inside the vertical cross-beam (211) and extend through the left and right sides. The limit switch (212) is fixedly connected to the top surface of the vertical cross-beam (211) by bolts. The vertical guide rail (213) and the longitudinal stator (214) are fixedly connected to the outer side wall of the vertical cross-beam (211) by bolts. The position sensing strip (215) is fixedly connected to the top surface of the vertical cross-beam (211) by bolts.

5. The gantry dual-drive structure according to claim 4, characterized in that: The docking plate (310) is fixedly connected to the bottom surface of the vertical crossbeam (211) by means of bolts. The size of the docking plate (310) matches the size of the mounting plate (120). A plurality of docking plate holes (311) extending left and right are provided inside the docking plate (310). The left and right ends of the connecting chamber (321) are respectively clamped and fixed to the outer side walls of the docking plates (310) at the left and right ends.

6. The gantry dual-drive structure according to claim 1, characterized in that: The driving motor (3220) is fixedly connected to the bottom surface of the connecting chamber body (321) by means of bolts, the driving shaft (3221) is coaxially connected to the output shaft of the driving motor (3220), and the top end of the driving shaft (3221) is rotatably connected to the inner top surface of the connecting chamber body (321).

7. The gantry dual-drive structure according to claim 1, characterized in that: The outer wall of the driving shaft (3221) is fixedly connected to a shaft worm wheel (3222) via a bayonet, the left and right ends of the bidirectional screw rod (3223) are rotatably connected to the inner walls of the left and right ends of the connecting bin body (321), and the outer wall of the bidirectional screw rod (3223) is integrally formed with a worm (3224) that meshes with the shaft worm wheel (3222).

8. The gantry dual-drive structure according to claim 1, characterized in that: The movable horizontal plate (3230) is slidably connected to the interior of the connecting bin body (321), the movable horizontal plate (3230) is threadedly connected to the bidirectional screw rod (3223), the plate body plug rod (3231) is welded and fixed to the outer side wall of the movable horizontal plate (3230), and the end of the plate body plug rod (3231) is truncated.

9. The gantry dual-drive structure according to claim 5, characterized in that: The outer dimensions of the insert tube (3240) are matched with the dimensions of the docking plate hole (311); a plurality of tube wall slots for placing rubber strips (3242) are provided on the outer wall of the insert tube (3240); a plurality of regularly distributed connecting rods (3243) are provided between the movable plate (3241) and the rubber strips (3242); the rubber strips (3242) are slidably connected to the inside of the tube wall slots on the outer wall of the insert tube (3240); a first pressure spring (3244) is sleeved on the outer wall of the connecting rod (3243); and two ends of the first pressure spring (3244) are respectively in contact with the inner tube wall of the insert tube (3240) and the outer wall of the movable plate (3241).

10. The gantry dual-drive structure according to claim 1, characterized in that: The second pressure spring (3245) is sleeved on the outer wall of the plate body plug rod (3231), one end of the second pressure spring (3245) is adhered and fixed to the outer wall of the plug tube (3240), and the other end of the second pressure spring (3245) is adhered and fixed to the outer wall of the movable horizontal plate (3230).

Images