A double-drive gantry structure

Abstract

The application relates to the technical field of automation equipment, in particular to a double-drive gantry structure which comprises two groups of left-right parallel longitudinal moving devices and two groups of front-rear parallel transverse moving devices, and a connecting device is arranged between the end of the longitudinal moving device and the transverse moving device. After the driving motor in the starting driving part is started, the position of the moving part and the inserting part can be changed, the mounting plate and the butt joint plate can be quickly fixed, and then the transverse moving device can be quickly installed with the longitudinal moving device, so that the installation process is simplified, and subsequent maintenance and repair are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automation equipment, in particular to a gantry double-drive structure. BACKGROUND

[0002] At present, domestic high-precision automation equipment has high precision requirements. For high-precision processing of large formats, a gantry double-drive linear motor needs to be designed. It adopts a double-side driving mode to control the transverse and longitudinal movements of the cross beam through two independent linear motors to realize high-precision XY plane movement. This structure can ensure uniform stress of the cross beam and is not easy to deform, thereby improving cutting precision and dynamic performance.

[0003] The patent with publication number CN214134875U discloses a gantry double-drive structure, which includes a pair of parallelly arranged bases, the top of each base is provided with a sliding seat that slides forward and backward through a slide rail, a cross beam with a hollow design is arranged between the two bases, the cross beam is arranged perpendicularly to the bases, the two ends of the cross beam are connected to the sliding seats, the side surface and the top surface of the cross beam are respectively provided with guide rails, the mounting surfaces of the two guide rails are arranged perpendicularly to each other, a motor seat is arranged on the cross beam, the motor seat is slidably mounted on the cross beam in cooperation with the guide rails on the side wall and the top surface, the two guide rails on the cross beam are arranged in a perpendicular manner, which can enhance rigidity and reduce volume, facilitating the transportation and assembly of the equipment, the cross beam is designed to be hollow, which reduces the weight and improves the movement speed of the equipment and the processing speed of the equipment.

[0004] The installation precision between the cross beam and the base in the gantry double-drive structure has an important influence on the performance of the overall structure. If the installation is not accurate, it may cause uneven gaps between the guide rails and the sliding blocks, affecting the movement precision and stability of the overall structure. However, the fixing of the cross beam and the base through multiple bolts not only requires a lot of time during installation, but also is not conducive to subsequent maintenance and repair.

[0005] In view of this, a gantry double-drive structure is proposed.

[0006] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general context in which the present application can be practiced. It is not admitted that any of the information provided in this section is prior art. SUMMARY

[0007] The purpose of the present application is to provide a gantry double-drive structure to solve the problems raised in the background.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0009] A gantry double drive structure, comprising two groups of left and right parallel longitudinal moving devices and two groups of front and rear parallel transverse moving devices, the longitudinal moving device comprising a longitudinal moving part and two groups of mounting plates arranged at the front and rear ends of the longitudinal moving part;

[0010] The transverse moving device comprises a vertical guide rail, a vertical limiting part arranged outside the vertical guide rail, and a transverse moving part arranged between the vertical guide rail and the vertical limiting part.

[0011] The longitudinal moving device end and the transverse moving device are provided with a connecting device; the connecting device comprises two groups of symmetrically arranged butt plates and a quick assembly and disassembly mechanism arranged between the two groups of butt plates.

[0012] The quick assembly and disassembly mechanism comprises a connecting warehouse body, a driving part arranged inside the connecting warehouse body, a moving part arranged at the left and right ends of the driving part, and an insertion part arranged inside the connecting warehouse body close to the corner position.

[0013] The driving part comprises a driving motor, a driving shaft arranged on the output shaft of the driving motor, and a bidirectional screw rod rotating with the driving shaft.

[0014] The moving part comprises a moving cross plate sleeved outside the bidirectional screw rod and a plurality of plate body insertion rods arranged on the outer wall of the moving cross plate.

[0015] The insertion part comprises a plug, a plurality of groups of movable plates regularly arranged inside the plug, a rubber strip changing with the change of the position of the movable plate, and a second pressure spring arranged on the outer wall of the plug.

[0016] In the technical scheme of the present application, the mounting plate is fixedly connected to the top surface of the moving platform inside the longitudinal moving part by bolts, a plurality of regularly distributed clamping grooves are formed in the top surface of the mounting plate, and a plurality of left and right through mounting plate holes are formed in the inside of the mounting plate.

[0017] In the technical scheme of the present application, the vertical guide rail comprises a vertical cross beam arranged perpendicular to the longitudinal moving part, limit switches arranged on the top surfaces of the left and right ends of the vertical cross beam, two vertical guide rails arranged parallel to each other on the outer side walls of the vertical cross beam, a longitudinal stator arranged between the two vertical guide rails, and a second position sensing strip arranged on the top surface of the vertical cross beam.

[0018] In the technical scheme of the present application, the longitudinal section of the vertical cross beam is in inverted T shape, a plurality of regularly distributed and left and right through hollow grooves are formed in the inside of the vertical cross beam, the limit switches are fixedly connected to the top surface of the vertical cross beam by bolts, the vertical guide rail and the longitudinal stator are fixedly connected to the outer side walls of the vertical cross beam by bolts, and the position sensing strip is clamped and fixed to the top surface of the vertical cross beam.

[0019] In the technical scheme of the present application, the butt joint plate is fixedly connected to the bottom surface of the vertical cross beam by bolts, the size of the butt joint plate is matched with the size of the mounting plate, and a plurality of left-right through butt joint plate holes are formed in the interior of the butt joint plate.

[0020] In the technical scheme of the present application, the driving motor is fixedly connected to the bottom surface of the connecting bin body by bolts, the driving shaft is coaxially connected with the output shaft of the driving motor, and the top end of the driving shaft is rotationally connected to the interior top surface of the connecting bin body.

[0021] In the technical scheme of the present application, the shaft body worm wheel is fixedly connected to the outer side wall of the driving shaft by a clamping pin, the left-right ends of the bidirectional screw rod are rotationally connected to the inner side walls of the left-right ends of the connecting bin body, and the worm is integrally formed on the outer side wall of the bidirectional screw rod and engaged with the shaft body worm wheel.

[0022] In the technical scheme of the present application, the moving cross plate is slidingly connected to the interior of the connecting bin body, the moving cross plate is threadedly connected with the bidirectional screw rod, the plate body insertion rod is welded and fixed to the outer side wall of the moving cross plate, and the end portion of the plate body insertion rod is in the shape of a circular truncated cone.

[0023] In the technical scheme of the present application, the external size of the insertion tube is matched with the size of the butt joint plate hole, a plurality of tube wall grooves for placing rubber strips are formed in the outer side wall of the insertion tube, a plurality of regularly distributed connecting rods are arranged between the movable plate and the rubber strips, the rubber strips are slidingly connected to the interiors of the tube wall grooves in the outer side wall of the insertion tube, the first pressure spring is sleeved on the outer side wall of the connecting rod, and the two ends of the first pressure spring are respectively in abutment with the inner side tube wall of the insertion tube and the outer side wall of the movable plate.

[0024] In the technical scheme of the present application, 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.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] 1. The double-drive structure of the portal frame, the vertical cross beam in the vertical guide rail has an inverted T-shaped longitudinal section, the T-shaped design enables the upper and lower flanges of the vertical cross beam to more effectively resist bending stress, and the middle web provides good resistance to shear force, so that the vertical cross beam has higher bending strength and rigidity under the same material consumption.

[0027] 2. The double-drive structure of the portal frame, after the driving motor in the starting driving part is started, the position of the moving part and the inserting part can be changed, the mounting plate and the butt joint plate are quickly fixed, and then the horizontal moving device is quickly installed with the longitudinal moving device, the installation process is simplified, and subsequent maintenance and repair are also facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0029] Figure 2 It is a schematic diagram of the structure of the longitudinal moving device in the present application;

[0030] Figure 3 It is a schematic diagram of the structure of the mounting plate in the present application;

[0031] Figure 4 It is a schematic diagram of the structure of the horizontal moving device in the present application;

[0032] Figure 5 It is a schematic diagram of the structure of the vertical guide rail in the present application;

[0033] Figure 6 It is a schematic diagram of the structure of the connecting device in the present application;

[0034] Figure 7 It is a schematic diagram of the structure of the butt joint plate in the present application;

[0035] Figure 8 It is a schematic diagram of the structure of the quick assembly and disassembly mechanism in the present application;

[0036] Figure 9 It is a schematic diagram of the structure of the driving part in the present application;

[0037] Figure 10 It is a schematic diagram of the structure of the moving part in the present application;

[0038] Figure 11 It is a schematic diagram of the structure of the inserting part in the present application;

[0039] Figure 12 It is a schematic diagram of the structure of the inserting tube in the present application;

[0040] Figure 13 It is a schematic diagram of part of the structure of the inserting part in the present application;

[0041] BRIEF DESCRIPTION OF DRAWINGS

[0042] 100, longitudinal moving device; 110, longitudinal moving part; 120, mounting plate; 121, mounting plate hole;

[0043] 200, transverse moving device; 210, vertical guide rail; 211, vertical 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;

[0044] 300, connecting device; 310, docking plate; 311, docking plate hole; 320, quick assembly and disassembly mechanism; 321, connecting warehouse body; 322, driving part; 3220, driving motor; 3221, driving shaft; 3222, shaft body worm gear; 3223, bidirectional screw rod; 3224, worm; 323, moving part; 3230, moving cross plate; 3231, plate body insertion rod; 324, insertion part; 3240, insertion pipe; 3241, movable plate; 3242, rubber strip; 3243, connecting rod; 3244, first pressure spring; 3245, second pressure spring. DETAILED DESCRIPTION

[0045] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0046] Please refer to Figures 1-10 The present embodiment provides a technical solution as shown in the figure:

[0047] A double-drive gantry structure includes two sets of left and right parallel longitudinal moving devices 100 and two sets of front and rear parallel transverse moving devices 200. The longitudinal moving device 100 includes a longitudinal moving part 110 and two sets of mounting plates 120 arranged at the front and rear ends of the longitudinal moving part 110.

[0048] In the present application, the mounting plate 120 is fixedly connected to the top surface of the internal moving platform of the longitudinal moving part 110 by bolts. A plurality of regularly distributed clamping grooves are formed on the top surface of the mounting plate 120. A plurality of left and right through mounting plate holes 121 are formed in the interior of the mounting plate 120.

[0049] Further, the moving platform in the longitudinal moving part 110 provides a mounting platform for the mounting plate 120 and drives the entire transverse moving device 200 to move.

[0050] In the present application, the transverse moving device 200 includes a vertical guide rail 210, a vertical limiting part 220 arranged outside the vertical guide rail 210, and a transverse moving part 230 arranged between the vertical guide rail 210 and the vertical limiting part 220.

[0051] Specifically, the vertical guide rail 210 comprises a vertical cross beam 211 arranged perpendicularly to the longitudinal moving part 110, limit switches 212 arranged on the top surface of the left and right ends of the vertical cross beam 211, two vertical guide rails 213 arranged in parallel on the outer side walls of the vertical cross beam 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 cross beam 211.

[0052] Further, the longitudinal section of the vertical cross beam 211 is in the shape of an inverted T, the vertical cross beam 211 is internally provided with a plurality of hollow grooves 2110 arranged regularly and penetrating through left and right sides, the limit switches 212 are fixedly connected to the top surface of the vertical cross beam 211 by means of bolts, the vertical guide rails 213 and the longitudinal stator 214 are fixedly connected to the outer side walls of the vertical cross beam 211 by means of bolts, and the position sensing strip 215 is clamped and fixed to the top surface of the vertical cross beam 211.

[0053] Further, the vertical cross beam 211 is used to ensure the strength of the overall structure of the vertical guide rail 210, at the same time, the design of the vertical cross beam 211 in the shape of a T allows the upper and lower flanges of the vertical cross beam 211 to more effectively resist bending stress, while the web in the middle provides good resistance to shear force, so that the vertical cross beam 211 has higher bending strength and rigidity under the same amount of material, the hollow grooves 2110 are used to reduce the weight of the overall structure of the vertical cross beam 211, the vertical guide rails 213 and the longitudinal stator 214 are used to reduce the center of gravity of the equipment and reduce the volume of the equipment, the limit switches 212 cooperate with the position sensing strip 215 to limit the movement range of the transverse moving part 230, and the vertical limiting part 220 ensures the stability of the transverse moving part 230 during movement.

[0054] In this embodiment, as shown in Figures 6-7 the connecting device 300 is arranged between the end of the longitudinal moving device 100 and the transverse moving device 200; the connecting device 300 comprises two groups of symmetrical butt plates 310 and a quick assembly and disassembly mechanism 320 arranged between the two groups of butt plates 310;

[0055] Specifically, the butt plate 310 is fixedly connected to the bottom surface of the vertical cross beam 211 by means of bolts, the size of the butt plate 310 is adapted to the size of the mounting plate 120, a plurality of butt plate holes 311 penetrating through left and right sides are arranged in the butt plate 310, and the left and right ends of the connecting bin body 321 are clamped and fixed to the outer side walls of the left and right butt plates 310, respectively.

[0056] Further, the butt plate 310 is used to cooperate with the mounting plate 120, so as to facilitate the butt joint of the overall connecting device 300 and the two groups of longitudinal moving devices 100.

[0057] In this embodiment, as shown in Figures 8-13As shown, the quick mounting and dismounting mechanism 320 comprises a connecting bin body 321, a driving part 322 arranged inside the connecting bin body 321, a moving part 323 arranged at both ends of the driving part 322, and an inserting part 324 arranged at a corner position inside the connecting bin body 321;

[0058] Specifically, the driving part 322 comprises a driving motor 3220, a driving shaft 3221 arranged on an output shaft of the driving motor 3220, and a bidirectional screw rod 3223 rotating with the driving shaft 3221.

[0059] Further, the driving motor 3220 is fixedly connected to the bottom surface of the connecting bin body 321 by bolts, the driving shaft 3221 is coaxially connected with the output shaft of the driving motor 3220, and the top end of the driving shaft 3221 is rotationally connected to the inner top surface of the connecting bin body 321.

[0060] Further, the outer side wall of the driving shaft 3221 is fixedly connected with a shaft worm wheel 3222 by a snap pin, the left and right ends of the bidirectional screw rod 3223 are rotationally connected to the inner side walls of the left and right ends of the connecting bin body 321, and the outer side wall of the bidirectional screw rod 3223 is integrally formed with a worm 3224 engaged with the shaft worm wheel 3222.

[0061] Further, after the driving motor 3220 rotates, the driving shaft 3221 is driven to rotate, and the shaft worm wheel 3222 is driven to rotate, and after the shaft worm wheel 3222 contacts the worm 3224, the worm 3224 and the bidirectional screw rod 3223 are driven to rotate.

[0062] In this embodiment, as shown in the figure, Figure 10 The moving part 323 comprises a moving cross plate 3230 sleeved on the outer side of the bidirectional screw rod 3223, and a plurality of plate body insertion rods 3231 arranged on the outer side wall of the moving cross plate 3230.

[0063] Specifically, the moving cross plate 3230 is slidingly connected to the inside of the connecting bin body 321, the moving cross plate 3230 is threadedly connected with the bidirectional screw rod 3223, the plate body insertion rods 3231 are fixedly welded to the outer side wall of the moving cross plate 3230, and the end portion of the plate body insertion rod 3231 is in the shape of a circular truncated cone.

[0064] Further, after the bidirectional screw rod 3223 rotates, the moving cross plate 3230 in the moving part 323 moves in the inside of the connecting bin body 321.

[0065] In this embodiment, as shown in the figure, Figures 11-13 The inserting part 324 comprises a cannula 3240, a plurality of groups of movable plates 3241 regularly arranged inside the cannula 3240, rubber strips 3242 changing with the change of the position of the movable plates 3241, and a second pressure spring 3245 arranged on the outer side wall of the cannula 3240.

[0066] Specifically, the external size of the insertion tube 3240 is matched with the size of the docking plate hole 311, a plurality of tube wall grooves for placing the rubber strips 3242 are arranged 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 strips 3242, the rubber strips 3242 are slidingly connected to the inside of the tube wall grooves on the outer side wall of the insertion tube 3240, the 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 in abutment with the inner side wall of the insertion tube 3240 and the outer side wall of the movable plate 3241 respectively.

[0067] Further, the second pressure spring 3245 is sleeved on the outer side wall of the plate body insertion rod 3231, one end of the second pressure spring 3245 is adhesively fixed to the outer side wall of the insertion tube 3240, and the other end of the second pressure spring 3245 is adhesively fixed to the outer side wall of the moving horizontal plate 3230.

[0068] Further, the insertion tube 3240 connected with the moving horizontal plate 3230 through the second pressure spring 3245 is inserted into the inside 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 is contracted under the action force of the continuously moving moving horizontal plate 3230, the plate body insertion rod 3231 continues to move towards the inside of the insertion tube 3240, the plate body insertion rod 3231 abuts against the movable plate 3241, the movable plate 3241 is driven to move upwards, the top end of the rubber strip 3242 is extended to the outside of the insertion tube 3240, and the rubber strip 3242 abuts against the hole wall of the docking plate hole 311 and the mounting plate hole 121, so that the fixing between the horizontal moving device 200 and the vertical moving device 100 is quickly completed.

[0069] Finally, it should be noted that the driving motor 3220 involved in the present application is a general standard part or a component known to those skilled in the art, the structure and principle of which can be known by technical personnel through a technical manual or through a conventional experimental method, in the idle place of the device, the driving motor 3220 is connected with an external power supply through wires, the specific connection means should be referred to the working principle in the present application, and the electrical connection between the electrical devices is completed according to the working order, and the detailed connection means are all known technologies in the art.

[0070] When the gantry double-drive structure of the present application is used, first, the docking plate 310 in the connecting device 300 is inserted into the top surface of the mounting plate 120 in the vertical moving device 100;

[0071] Then, the driving motor 3220 in the driving part 322 of the connecting device 300 is started, the driving shaft 3221 is driven to rotate, the shaft body worm 3222 is driven to rotate, the shaft body worm 3222 contacts the worm 3224, and the worm 3224 is driven to rotate together with the bidirectional screw rod 3223;

[0072] After the bidirectional screw rod 3223 rotates, the moving horizontal plate 3230 in the moving part 323 moves in the inside of the connecting warehouse 321, the insertion pipe 3240 connected with the moving horizontal plate 3230 through the second pressure spring 3245 is inserted into the inside of the butt joint plate hole 311 in the butt joint plate 310;

[0073] When the top end of the insertion pipe 3240 contacts the hole wall of the butt joint plate hole 311, the second pressure spring 3245 is contracted under the action force of the continuously moving moving horizontal plate 3230, and the plate body insertion rod 3231 is continuously moved into the inside of the insertion pipe 3240;

[0074] After the plate body insertion rod 3231 contacts the movable plate 3241, the movable plate 3241 is driven to move upward, the top end of the rubber strip 3242 extends to the outside of the insertion pipe 3240, and the rubber strip 3242 contacts the hole wall of the mounting plate hole 121 and the butt joint plate hole 311, so that the fixing between the horizontal moving device 200 and the longitudinal moving device 100 is quickly completed;

[0075] Subsequently, after the current is connected to the horizontal moving part 230 in the horizontal moving device 200, the horizontal moving part 230 can move outside the vertical guide rail 210.

[0076] The foregoing description of specific exemplary embodiments of the application is intended to be illustrative only and is not intended to limit the application to the precise forms described. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the application. The exemplary embodiments were chosen and described in order to explain the principles of the application and its practical application and to allow others skilled in the art to understand the application for various exemplary embodiments with various modifications being suited to the particular use contemplated. The scope of the application is to be defined by the claims and their equivalents.

Claims

1. A gantry dual-drive structure, comprising two sets of longitudinal moving devices arranged in parallel left and right and two sets of transverse moving devices arranged in parallel front and rear, wherein the longitudinal moving device comprises a longitudinal moving part and two sets of mounting plates arranged at the front and rear ends of the longitudinal moving part; The lateral moving device includes a vertical guide rail, a vertical limiting part disposed on the outside of the vertical guide rail, and a lateral moving part disposed between the vertical guide rail and the vertical limiting part. Its features are: A connecting device is provided between the end of the longitudinal moving device and the transverse moving device; the connecting device includes two sets of symmetrically arranged docking plates and a quick assembly / disassembly mechanism disposed between the two sets of docking plates. The quick assembly / disassembly mechanism includes a connecting compartment, a drive unit disposed inside the connecting compartment, a moving part disposed at the left and right ends of the drive unit, and an insertion part disposed inside the connecting compartment near the corner. The drive unit includes a drive motor, a drive shaft mounted on the output shaft of the drive motor, and a bidirectional lead screw that rotates with the drive shaft. The moving part includes a moving cross plate sleeved on the outside of the bidirectional lead screw and several plate inserts disposed on the outer wall of the moving cross plate. The insertion part includes a cannula, several sets of movable plates regularly arranged inside the cannula, a rubber strip that changes position with the movable plates, and a second pressure spring arranged on the outer wall of the cannula. The mounting plate is fixedly connected to the top surface of the internal moving platform of the longitudinal moving part by bolts. The top surface of the mounting plate has several regularly distributed slots, and the interior of the mounting plate has several through mounting plate holes. The movable horizontal plate is slidably connected to the inside of the connecting chamber. The movable horizontal plate is threadedly connected to the bidirectional lead screw. The plate insert rod is welded and fixed to the outer side wall of the movable horizontal plate. The end of the plate insert rod is truncated cone-shaped. The external dimensions of the insertion tube are adapted to the dimensions of the hole in the docking plate. Several grooves for placing rubber strips are provided on the outer wall of the insertion tube. Several 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 grooves on the outer wall of the insertion tube. A first pressure spring is sleeved on the outer wall of the connecting rod. The two ends of the first pressure spring abut against the inner wall of the insertion tube and the outer wall of the movable plate, respectively.

2. The gantry dual-drive structure according to claim 1, characterized in that: The vertical guide rail includes a vertical beam perpendicular to the longitudinal moving part, limit switches on the top surfaces of the left and right ends of the vertical beam, two vertical guide rails parallel to each other on the outer side wall of the vertical beam, a longitudinal stator between the two vertical guide rails, and a second position sensing strip on the top surface of the vertical beam.

3. The gantry dual-drive structure according to claim 2, characterized in that: The longitudinal section of the vertical beam is inverted T-shaped. The interior of the vertical beam has several regularly distributed and through-holes. The limit switch is fixedly connected to the top surface of the vertical beam by bolts. The vertical guide rail and the longitudinal stator are both fixedly connected to the outer wall of the vertical beam by bolts. The position sensing strip is snapped and fixed to the top surface of the vertical beam.

4. The gantry dual-drive structure according to claim 3, characterized in that: The docking plate is fixedly connected to the bottom surface of the vertical beam by bolts. The size of the docking plate is adapted to the size of the mounting plate. The docking plate has several through-holes in the interior. The left and right ends of the connecting chamber are respectively snapped and fixed to the outer walls of the docking plates at the left and right ends.

5. The gantry dual-drive structure according to claim 1, characterized in that: The drive motor is fixedly connected to the bottom surface of the connecting chamber by bolts, and the drive shaft is coaxially connected to the output shaft of the drive motor. The top end of the drive shaft is rotatably connected to the inner top surface of the connecting chamber.

6. The gantry dual-drive structure according to claim 1, characterized in that: A shaft worm gear is fixedly connected to the outer wall of the drive shaft by a locking pin. The left and right ends of the bidirectional lead screw are rotatably connected to the inner side walls of the left and right ends of the connecting chamber. A worm gear that meshes with the shaft worm gear is integrally formed on the outer wall of the bidirectional lead screw.

7. The gantry dual-drive structure according to claim 1, characterized in that: The second pressure spring is sleeved on the outer wall of the plate insertion rod. One end of the second pressure spring is adhered and fixed to the outer wall of the insertion tube, and the other end of the second pressure spring is adhered and fixed to the outer wall of the movable horizontal plate.

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