A large-span beam anti-deformation device and supporting method for a CNC gantry machine tool

Abstract

The invention relates to the technical field of large-span beam supports for gantry machine tools, and specifically to anti-deformation equipment and a supporting method for large-span beams of numerically controlled gantry machine tools. The anti-deformation equipment for large-span beams comprises a beam assembly, a processing assembly, a support assembly and an auxiliary assembly, and has the following beneficial effects: by arranging a support assembly with a top ball and a cross plate, a traditional vertical support is replaced with a lateral extrusion support, so that the gravity of the middle section of the beam is transmitted along the top ball to the support cross plate, so that the cross plate has a tendency to slide laterally, and then the cross plate is fastened and pressed on the side wall of the frame, thereby avoiding the influence of the vertical support on the processing of parts and components, and achieving the purpose of fixing the beam and improving the stability of the processing. The cross beam that can be raised and lowered is used to adjust the height of the top ball. During the rising process, the extrusion and fixation of the beam are automatically released, and the switching of the rollers is realized, which greatly improves the stability of the sliding process and the intelligence of the adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of large-span crossbeam support for gantry machine tools, and in particular to anti-deformation equipment and a supporting method for large-span crossbeams of numerically controlled gantry machine tools. Background Art

[0002] Gantry machine tools are used to process large parts. During the processing, the installation of processing equipment is achieved by setting up a long large-span beam. Devices such as tools and motors are installed on the sliding beam, and then the beam is driven on the frame to achieve the purpose of processing and cutting.

[0003] Since gantry machine tools are adapted to large components, the length of the beam is relatively long. The beam is mostly made of metal structures with a large weight. When supported at both ends, its center of gravity is located in the middle. Under the action of gravity, it is very easy to cause deformation, especially during the processing process, due to the reaction force and vibration of cutting, drilling and other processing, the deformation of the beam is further aggravated.

[0004] Since the processed parts in the gantry machine tool are set on the frame with the upper end facing the crossbeam, it is difficult to effectively support the middle section of the crossbeam in the vertical direction. In addition, during the processing, the crossbeam needs to be slid and adjusted many times, and the supporting device needs to be repeatedly disassembled, which cannot meet the needs of automated and efficient processing. Summary of the invention

[0005] The object of the present invention is to provide a large-span beam anti-deformation device and a supporting method for a CNC gantry machine tool, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A large-span beam anti-deformation device for a CNC gantry machine tool, the large-span beam anti-deformation device comprising:

[0008] A crossbeam assembly, the crossbeam assembly comprises a crossbeam and a frame, a pair of slide rails are symmetrically arranged on both sides of the frame, the crossbeam slides and spans between the pair of slide rails, extension blocks are arranged at both ends of the crossbeam, a roller for lifting drive installation is arranged at the lower end of the extension block, the roller is installed in the slide rail, a mounting opening is arranged at the middle section of the crossbeam, a mounting inner cavity is arranged at the middle end surface of the crossbeam, the lower end of the mounting inner cavity is arranged as an arc surface, and the upper end of the mounting inner cavity is arranged as a plane;

[0009] A processing assembly, the processing assembly includes a mounting frame and a mounting rod, the front end of the mounting frame is equipped with a device for processing a workpiece, the rear end of the mounting frame is inserted into the crossbeam, and the rear end of the mounting frame is symmetrically provided with a pair of mounting rods;

[0010] A support assembly, the support assembly includes an arc-shaped support plate that fits the arc surface of the lower end of the inner cavity, a support frame is provided at the upper end of the arc-shaped support plate, a mounting block that fits the upper end plane of the inner cavity is fixedly installed at the upper end of the support frame, a socket that cooperates with the mounting rod is provided on the mounting block, and a top ball that penetrates the crossbeam and extends to the outer side of the lower end of the crossbeam is provided at the lower end of the arc-shaped support plate;

[0011] An auxiliary component comprises a right-angle support plate, the upper end of which fits the lower end surface of the cross beam, the side wall of which is slidably inserted into the frame, a cross plate is laterally arranged at the end of the right-angle support plate, an intermediate plate is fixedly installed at the lower end of the mounting block, the cross plate and the intermediate plate extend to both sides of the top ball, and the ends of the cross plate and the intermediate plate are provided with spherical semi-grooves which fit the outer wall of the circular arc at the lower end of the top ball.

[0012] Preferably, a lifting frame is telescopically mounted on the lower end of the extension block, an airbag is fixedly bonded in the inner cavity of the lifting frame, the lower end of the airbag is fixedly connected to a rotating frame with a rotatable mounting roller, and an air pump connected to the airbag is arranged on the rotating frame.

[0013] Preferably, a motor is provided on the extension block, a driving shaft of the motor passes through the extension block, and a screw is connected to the driving shaft, a screw tube is provided at the upper end of the lifting frame, and the screw tube is threadably inserted into the screw tube.

[0014] Preferably, a pair of through holes are vertically penetrated at one end of the cross beam, and a vertical rod slidably inserted in the through hole is provided at the upper end of the right-angle support plate. The upper end of the vertical rod extends to the outer side of the upper end of the cross beam, and a limiting nut is threadedly installed on the upper end of the vertical rod. A spring is sleeved on the vertical rod, and the spring is pressed between the upper end surface of the cross beam and the lower end surface of the limiting nut.

[0015] Preferably, side grooves are provided on the side walls of the frame, side bars are provided on the vertical side walls of the right-angle support plate, the side bars are slidably inserted in the side grooves, and linearly distributed right-angle triangular reinforcement plates are provided on the right-angle surface of the right-angle support plate.

[0016] Preferably, a telescopic slot is provided at the end of the right-angle support plate, a limiting slide groove is provided on the inner wall of the lower end of the telescopic slot, a plurality of groups of linearly distributed screw holes are provided on the side wall of the cross plate, a fastening screw extending to the inner cavity of the telescopic slot is rotatably installed on the front end thread of the right-angle support plate, one end of the cross plate is inserted in the telescopic slot, a sliding block which cooperates with the limiting slide groove is provided at the lower end of the cross plate, and the fastening screw is inserted in the screw hole.

[0017] Preferably, the lower end of the crossbeam located in the installation cavity is provided with a vertical through hole, the upper end of the top ball is fixedly connected to the lower end of the arc-shaped support plate by a connecting rod passing through the through hole, and the outer diameter of the top ball is smaller than the inner diameter of the through hole.

[0018] Preferably, the middle plate is composed of a pair of left-right symmetrical end plates and telescopic studs, the end plates at both ends are provided with spherical half grooves cooperating with the cross plates, the telescopic studs are transversely fixedly connected to the pair of end plates, the middle plate is located at the lower end of the mounting frame, and the lower end of the mounting rod at the rear end of the mounting frame is provided with a threaded groove, and a fastening bolt is inserted through the thread on the support frame, and the upper end of the fastening bolt is inserted in the threaded groove.

[0019] Preferably, a rotating rod is provided on the front and rear sides of one end of the horizontal plate, a rotating plate is rotatably installed on the rotating rod, the other end of the rotating plate extends to the front end of the middle plate, an elongated circular groove is provided at the end of the rotating plate, and guide columns which are inserted into the elongated circular grooves are provided on the end plates on both sides of the middle plate, and a locking nut which is pressed on the front end surface of the rotating plate is rotatably installed on the front end thread of the guide column.

[0020] A supporting method implemented according to the large-span beam anti-deformation equipment of the above-mentioned CNC gantry machine tool, the supporting method comprises the following steps:

[0021] S1: Install the crossbeam on the rack, realize the sliding installation of both ends of the crossbeam on the slide rail through the extension block, and realize the fixed installation of the mounting frame through the cooperation of the mounting rod and the mounting block;

[0022] S2: The right-angle support plates at both ends of the beam are installed by cooperating with the vertical rod and the through hole, and the horizontal plate and the middle plate are installed on the right-angle support plate and the mounting frame respectively, so that the spherical half groove fits the top ball tightly;

[0023] S3: Install the processing tool equipment and driving equipment on the mounting frame. Due to the increase in gravity, the middle section of the beam is stressed and has a tendency to deform and bend downward. The extrusion force acts on the arc-shaped support plate and the top ball. The top ball has a tendency to be squeezed downward. The relative fixation of the cross plate and the middle plate achieves the purpose of supporting the top ball. Through the conduction of the force, the force is applied to the lateral extrusion between the right-angle support plate and the side wall of the frame, so as to achieve the purpose of fixing the position of the beam.

[0024] S4: When position adjustment is required, the air pump is used to inflate the airbag to make the crossbeam rise. At this time, the top ball is separated from the spherical half groove, the lateral extrusion force disappears, the crossbeam is released, and the roller is fitted to the slide rail through the lifting movement, which is convenient for lateral drive adjustment.

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

[0026] The present invention replaces the traditional vertical support with a lateral extrusion support by arranging a support assembly with a top ball and a cross plate, so that the gravity of the middle section of the cross beam is transmitted along the top ball to the support cross plate, so that the cross plate has a tendency to slide laterally, and then the cross plate is tightly pressed on the side wall of the frame, thereby avoiding the influence of the vertical support on the processing of parts and components, and at the same time achieving the purpose of fixing the cross beam and improving the stability of processing. The cross beam that can be raised and lowered is used to adjust the height of the top ball. During the rising process, the extrusion fixation of the cross beam is automatically released, and the switching of the rollers is realized, which greatly improves the stability of the sliding process and the intelligence of the adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 For the present invention Figure 1 A magnified view of the structure at center;

[0029] Figure 3 It is a schematic diagram of the end surface structure of the beam of the present invention;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the crossbeam of the present invention;

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the extension block of the present invention installed on the crossbeam;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the support assembly of the present invention;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the mounting frame of the present invention;

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of the auxiliary component of the present invention;

[0035] Fig. 9 for Figure 8 Enlarged view of the structure at point B in the middle.

[0036] In the figure: 1, frame; 2, crossbeam; 3, slide rail; 4, side groove; 5, right angle support plate; 6, extension block; 7, mounting frame; 8, mounting block; 9, support assembly; 10, top ball; 11, cross plate; 12, vertical rod; 13, spring; 14, motor; 15, through hole; 16, limit nut; 17, side bar; 18, jack; 19, screw; 20, screw tube; 21, roller; 22, air bag; 23, air bag Pump; 24, lifting frame; 25, installation cavity; 26, installation rod; 27, fastening bolt; 28, arc-shaped support plate; 29, support frame; 30, middle plate; 31, locking nut; 32, through hole; 33, fastening screw; 34, screw hole; 35, limiting slide groove; 36, telescopic slot; 37, spherical half groove; 38, telescopic stud; 39, rotating rod; 40, rotating plate; 41, guide column; 42, oblong groove. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 9 , the present invention provides a technical solution:

[0039] Embodiment 1:

[0040] A large-span crossbeam anti-deformation device for a numerically controlled gantry machine tool, comprising a crossbeam component, a processing component, a support component 9 and an auxiliary component.

[0041] The crossbeam assembly includes a crossbeam 2 and a frame 1. A pair of slide rails 3 are symmetrically arranged on both sides of the frame 1. The crossbeam 2 slides across the pair of slide rails 3. Extension blocks 6 are arranged at both ends of the crossbeam 2. The lower end of the extension block 6 is provided with a roller 21 installed for lifting drive. The roller 21 is installed in the slide rail 3. The middle section of the crossbeam 2 is provided with a mounting opening. The middle end face of the crossbeam 2 is provided with a mounting inner cavity 25. The lower end of the mounting inner cavity 25 is set as an arc surface, and the upper end of the mounting inner cavity 25 is set as a plane.

[0042] By arranging the slide rail 3 and the extension block 6 in cooperation, the support and sliding installation of the two ends of the beam 2 are achieved.

[0043] The processing assembly includes a mounting frame 7 and a mounting rod 26, the front end of the mounting frame 7 is equipped with equipment for processing the workpiece, the rear end of the mounting frame 7 is inserted into the beam 2, and a pair of mounting rods 26 are symmetrically arranged at the rear end of the mounting frame 7, the support assembly 9 includes an arc-shaped support plate 28 that fits the arc surface of the lower end of the mounting cavity 25, the upper end of the arc-shaped support plate 28 is provided with a support frame 29, the upper end of the support frame 29 is fixedly installed with a mounting block 8 that fits the upper end plane of the mounting cavity 25, the mounting block 8 is provided with a socket 18 that cooperates with the mounting rod 26, and the lower end of the arc-shaped support plate 28 is provided with a top ball 10 that penetrates the beam 2 and extends to the outer side of the lower end of the beam 2.

[0044] By means of the fitting and plugging of the mounting block 8 and the mounting rod 26, the purpose of fixing the mounting frame 7 on the cross beam 2 is achieved. Meanwhile, the purpose of supporting the mounting frame 7 is achieved by means of the fitting of the supporting assembly 9 and the top ball 10, so that the gravity of the mounting frame 7 acts on the supporting assembly 9 and can be transmitted along the top ball 10.

[0045] The auxiliary component includes a right-angle support plate 5, the upper end of the right-angle support plate 5 is fitted with the lower end surface of the cross beam 2, the side wall of the right-angle support plate 5 is slidably inserted on the frame 1, a cross plate 11 is laterally arranged at the end of the right-angle support plate 5, and an intermediate plate 30 is fixedly installed at the lower end of the mounting block 8. The cross plate 11 and the intermediate plate 30 extend to both sides of the top ball 10, and the ends of the cross plate 11 and the intermediate plate 30 are provided with spherical semi-grooves 37 that fit with the outer wall of the arc at the lower end of the top ball 10.

[0046] By providing a right-angle support plate 5 to improve the support for the cross beam 2, the cooperation of the cross plate 11 and the middle plate 30 is utilized to make the top ball 10 pressed on the inner walls of a pair of symmetrically distributed spherical semi-grooves 37, thereby forming a downward extrusion force. Under the action of the downward extrusion force, the cross plate 11 and the middle plate 30 have a tendency to move laterally. At this time, the cross plate 11 and the middle plate 30 conduct the right-angle support plate 5 to be tightly pressed on the side wall of the frame 1, thereby achieving fixed support for the top ball 10, thereby avoiding traditional vertical support, and achieving a tight fixation of the position of the cross beam 2 while lateral extrusion, thereby improving the processing stability and precision of the cross beam 2.

[0047] When lateral sliding adjustment is required, the extension block 6 is driven up and down to make the beam 2 move upward relative to the right-angle support plate 5, the top ball 10 is separated from the inner wall of the spherical semi-groove 37, and the lateral extrusion force disappears. At this time, the beam 2 is released, and the extension block 6 is switched to the roller 21 support, which is convenient for position adjustment on the frame 1.

[0048] Embodiment 2: On the basis of Embodiment 1, a lifting frame 24 is telescopically installed at the lower end of the extension block 6, an airbag 22 is fixedly bonded in the inner cavity of the lifting frame 24, the lower end of the airbag 22 is fixedly connected to a rotating frame for rotatably installing a roller 21, an air pump 23 connected to the airbag 22 is arranged on the rotating frame, a motor 14 is arranged on the extension block 6, a driving shaft of the motor 14 passes through the extension block 6, and a screw 19 is connected to the driving shaft, a screw tube 20 is arranged on the upper end of the lifting frame 24, and the screw 19 is threadably rotatably inserted in the screw tube 20.

[0049] The motor 14 drives the screw 19 to rotate on the screw tube 20, so that the screw tube 20 can achieve lifting movement, thereby pulling the lifting frame 24 to lift and lower. During the lifting process, the airbag 22 is inflated, thereby driving the lifting frame 24 and the extension block 6 to rise synchronously, thereby achieving the purpose of driving the crossbeam 2 to rise, and at the same time making the roller 21 support downward and fit the inner wall of the slide rail 3.

[0050] Embodiment 3: On the basis of Embodiment 2, a pair of through holes 15 are vertically penetrated at one end of the cross beam 2, and a vertical rod 12 which is slidably inserted into the through hole 15 is provided at the upper end of the right-angle support plate 5. The upper end of the vertical rod 12 extends to the outer side of the upper end of the cross beam 2, and a limiting nut 16 is threadedly installed on the upper end portion of the vertical rod 12. A spring 13 is sleeved on the vertical rod 12, and the spring 13 is pressed between the upper end surface of the cross beam 2 and the lower end surface of the limiting nut 16.

[0051] By setting the vertical rod 12 to be inserted and installed in the through hole 15, the vertical sliding connection between the right-angle support plate 5 and the cross beam 2 is realized. By setting the spring 13, the elastic extrusion between the right-angle support plate 5 and the cross beam 2 is ensured, and the limit nut 16 is used to limit the lifting height.

[0052] The side wall of the frame 1 is provided with a side groove 4, the vertical side wall of the right-angle support plate 5 is provided with a side bar 17, the side bar 17 is slidably inserted in the side groove 4, and the right-angle surface of the right-angle support plate 5 is provided with linearly distributed right-angle triangular reinforcement plates.

[0053] By setting the side groove 4 and the side strip 17 together, the purpose of limiting the height of the right-angle support plate 5 is achieved, so that when the extension block 6 is driven upward, the height of the right-angle support plate 5 is guaranteed to be fixed, and when the cross beam 2 rises, the spring 13 is compressed, and the top ball 10 moves upward relative to the cross plate 11 and separates.

[0054] Embodiment 4: On the basis of Embodiment 3, a telescopic slot 36 is provided at the end of the right-angle support plate 5, a limiting slide groove 35 is provided on the inner wall of the lower end of the telescopic slot 36, a plurality of groups of screw holes 34 distributed linearly are provided on the side wall of the cross plate 11, a fastening screw 33 extending to the inner cavity of the telescopic slot 36 is rotatably installed on the front end of the right-angle support plate 5, one end of the cross plate 11 is inserted into the telescopic slot 36, a sliding block which cooperates with the limiting slide groove 35 is provided at the lower end of the cross plate 11, and the fastening screw 33 is inserted into the screw hole 34.

[0055] The purpose of adjusting and fixing the extended position of the cross plate 11 is achieved by providing the fastening screws 33 , so as to facilitate adaptation to different positions of the cross beam 2 and the top ball 10 .

[0056] The lower end of the crossbeam 2 located in the installation cavity 25 is provided with a vertical through hole 32 , and the upper end of the top ball 10 is fixedly connected to the lower end of the arc-shaped support plate 28 by a connecting rod passing through the through hole 32 , and the outer diameter of the top ball 10 is smaller than the inner diameter of the through hole 32 .

[0057] The through hole 32 is provided to facilitate the through installation of the top ball 10 on the cross beam 2 .

[0058] The middle plate 30 is composed of a pair of left-right symmetrical end plates and telescopic studs 38. The end plates at both ends are provided with spherical semi-grooves 37 that cooperate with the cross plate 11. The telescopic studs 38 are laterally fixed to connect the pair of end plates. The middle plate 30 is located at the lower end of the mounting frame 7. The lower end of the mounting rod 26 at the rear end of the mounting frame 7 is provided with a threaded groove. The support frame 29 is threadedly inserted with a fastening bolt 27, and the upper end of the fastening bolt 27 is inserted in the threaded groove.

[0059] By providing the telescopic stud 38 , the purpose of adjusting the lateral length of the middle plate 30 is achieved, and the adaptation of the position of the top ball 10 is realized. By providing the fastening bolt 27 , the purpose of further improving the installation strength of the mounting frame 7 is achieved.

[0060] Embodiment 5: On the basis of embodiment 4, a rotating rod 39 is provided on the front and rear sides of one end of the horizontal plate 11, and a rotating plate 40 is rotatably mounted on the rotating rod 39. The other end of the rotating plate 40 extends to the front end of the middle plate 30, and an elongated circular groove 42 is provided at the end of the rotating plate 40. Guide columns 41 that penetrate and are inserted into the elongated circular groove 42 are provided on the end plates on both sides of the middle plate 30. The front end thread of the guide column 41 is rotatably mounted with a locking nut 31 that is pressed on the front end surface of the rotating plate 40.

[0061] By setting a rotating plate 40 to connect the transverse plate 11 and the middle plate 30, the purpose of improving the connection strength between the transverse plate 11 and the middle plate 30 is achieved, and deformation of the transverse plate 11 and the middle plate 30 due to the squeezing of the top ball 10 is avoided. The fixed connection is achieved by the cooperation of the guide column 41 and the locking nut 31.

[0062] A supporting method for a large-span beam anti-deformation device of a CNC gantry machine tool, the supporting method comprising the following steps:

[0063] S1: Install the crossbeam 2 on the frame 1, realize the sliding installation of the two ends of the crossbeam 2 on the slide rail 3 through the extension block 6, and realize the fixed installation of the mounting frame 7 through the cooperation of the mounting rod 26 and the mounting block 8;

[0064] S2: The right-angle support plates 5 at both ends of the crossbeam 2 are installed by cooperating with the vertical rod 12 and the through hole 15, and the cross plate 11 and the middle plate 30 are installed on the right-angle support plate 5 and the mounting frame 7 respectively, so that the spherical half groove 37 fits tightly with the top ball 10;

[0065] S3: Install the processing tool equipment and driving equipment on the mounting frame 7. Due to the increase in gravity, the middle section of the cross beam 2 is stressed and has a tendency to deform and bend downward. The extrusion force acts on the arc-shaped support plate 28 and the top ball 10. The top ball 10 has a tendency to be squeezed downward. The relative fixation of the cross plate 11 and the middle plate 30 achieves the purpose of supporting the top ball 10. The force is transmitted to the right-angle support plate 5 to squeeze the side wall of the frame 1 horizontally, so as to achieve the purpose of fixing the position of the cross beam 2.

[0066] S4: When position adjustment is required, the air pump 23 is used to inflate the airbag 22, so that the crossbeam 2 rises. At this time, the top ball 10 is separated from the spherical half groove 37, the lateral extrusion force disappears, the crossbeam 2 is released, and at the same time, the roller 21 is made to fit the slide rail 3 through the lifting movement, which is convenient for lateral drive adjustment.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large span beam anti-deformation device for a CNC gantry machine tool, characterized in that: The long-span beam anti-deformation equipment includes: A crossbeam assembly, the crossbeam assembly comprising a crossbeam (2) and a frame (1), a pair of slide rails (3) being symmetrically arranged on both sides of the frame (1), the crossbeam (2) being slidably connected between the pair of slide rails (3), extension blocks (6) being arranged at both ends of the crossbeam (2), a roller (21) being arranged at the lower end of the extension block (6) for lifting and lowering drive installation, the roller (21) being installed in the slide rail (3), a mounting opening being arranged at the middle section of the crossbeam (2), a mounting inner cavity (25) being arranged at the middle end surface of the crossbeam (2), the lower end of the mounting inner cavity (25) being arranged as an arc surface, and the upper end of the mounting inner cavity (25) being arranged as a plane; A processing assembly, the processing assembly comprising a mounting frame (7) and mounting rods (26), a device for processing a workpiece being mounted at the front end of the mounting frame (7), a rear end of the mounting frame (7) being plugged into the crossbeam (2), and a pair of mounting rods (26) being symmetrically arranged at the rear end of the mounting frame (7); A support assembly (9), the support assembly (9) comprising an arc-shaped support plate (28) which fits the arc surface of the lower end of the mounting inner cavity (25), a support frame (29) being arranged at the upper end of the arc-shaped support plate (28), a mounting block (8) which fits the upper plane of the mounting inner cavity (25) being fixedly mounted at the upper end of the support frame (29), a socket (18) which is plugged into the mounting rod (26) being arranged on the mounting block (8), and a top ball (10) which penetrates the cross beam (2) and extends to the outer side of the lower end of the cross beam (2) being arranged at the lower end of the arc-shaped support plate (28); An auxiliary component, the auxiliary component comprising a right-angle support plate (5), the upper end of the right-angle support plate (5) being in contact with the lower end surface of the cross beam (2), the side wall of the right-angle support plate (5) being slidably plugged into the frame (1), a cross plate (11) being transversely arranged at the end of the right-angle support plate (5), an intermediate plate (30) being fixedly mounted at the lower end of the mounting block (8), the cross plate (11) and the intermediate plate (30) extending to both sides of the top ball (10), and a spherical half groove (37) being in contact with the arc outer wall of the lower end of the top ball (10) being arranged at the ends of the cross plate (11) and the intermediate plate (30).

2. The large-span beam anti-deformation equipment of a CNC gantry machine tool according to claim 1, characterized in that: A lifting frame (24) is telescopically mounted on the lower end of the extension block (6); an airbag (22) is fixedly bonded in the inner cavity of the lifting frame (24); a rotating frame on which a roller (21) is rotatably mounted is fixedly connected to the lower end of the airbag (22); and an air pump (23) connected to the airbag (22) is arranged on the rotating frame.

3. The large-span beam anti-deformation device of a CNC gantry machine tool according to claim 2, characterized in that: The extension block (6) is provided with a motor (14), a drive shaft of the motor (14) passes through the extension block (6), and the drive shaft is connected to a screw rod (19), a screw tube (20) is provided at the upper end of the lifting frame (24), and the screw rod (19) is threadably inserted into the screw tube (20).

4. The large-span beam anti-deformation device of a CNC gantry machine tool according to claim 1, characterized in that: A pair of through holes (15) are vertically penetrated at one end of the cross beam (2), and a vertical rod (12) slidably inserted in the through hole (15) is provided at the upper end of the right-angle support plate (5), and the upper end of the vertical rod (12) extends to the outer side of the upper end of the cross beam (2), and a limit nut (16) is threadedly rotatably installed at the upper end of the vertical rod (12), and a spring (13) is sleeved on the vertical rod (12), and the spring (13) is pressed between the upper end surface of the cross beam (2) and the lower end surface of the limit nut (16).

5. The large-span beam anti-deformation equipment of a CNC gantry machine tool according to claim 1, characterized in that: The side walls of the frame (1) are provided with side grooves (4), the vertical side walls of the right-angle support plate (5) are provided with side bars (17), the side bars (17) are slidably inserted in the side grooves (4), and the right-angle surface of the right-angle support plate (5) is provided with linearly distributed right-angle triangular reinforcement plates.

6. The large-span beam anti-deformation device of a CNC gantry machine tool according to claim 1, characterized in that: The end of the right-angle support plate (5) is provided with a telescopic slot (36), and the inner wall of the lower end of the telescopic slot (36) is provided with a limit slide groove (35). The side wall of the cross plate (11) is provided with a plurality of groups of screw holes (34) distributed linearly. The front end of the right-angle support plate (5) is threadedly rotatably mounted with a fastening screw (33) extending into the inner cavity of the telescopic slot (36). One end of the cross plate (11) is inserted into the telescopic slot (36), and the lower end of the cross plate (11) is provided with a slider that cooperates with the limit slide groove (35) for insertion. The fastening screw (33) is inserted into the screw hole (34).

7. The large-span beam anti-deformation equipment of a CNC gantry machine tool according to claim 1, characterized in that: A vertical through hole (32) is provided at the lower end of the cross beam (2) located in the mounting inner cavity (25); the upper end of the top ball (10) is fixedly connected to the lower end of the arc-shaped support plate (28) via a connecting rod passing through the through hole (32); and the outer diameter of the top ball (10) is smaller than the inner diameter of the through hole (32).

8. The large-span beam anti-deformation device of a CNC gantry machine tool according to claim 1, characterized in that: The intermediate plate (30) is composed of a pair of left-right symmetrical end plates and telescopic studs (38). The end plates at both ends are provided with spherical half grooves (37) that cooperate with the transverse plate (11). The telescopic studs (38) are transversely fixedly connected to the pair of end plates. The intermediate plate (30) is located at the lower end of the mounting frame (7). The lower end of the mounting rod (26) at the rear end of the mounting frame (7) is provided with a threaded groove. A fastening bolt (27) is threadedly inserted through the support frame (29). The upper end of the fastening bolt (27) is inserted into the threaded groove.

9. The large-span beam anti-deformation device of a CNC gantry machine tool according to claim 1, characterized in that: A rotating rod (39) is provided at both front and rear sides of one end of the horizontal plate (11), a rotating plate (40) is rotatably mounted on the rotating rod (39), the other end of the rotating plate (40) extends to the front end of the intermediate plate (30), an elongated circular groove (42) is provided at the end of the rotating plate (40), and guide columns (41) inserted into the elongated circular groove (42) are provided on the end plates on both sides of the intermediate plate (30), and a locking nut (31) pressed on the front end surface of the rotating plate (40) is rotatably mounted on the front end of the guide column (41).

10. A method for supporting a large-span beam anti-deformation device of a CNC gantry machine tool according to claim 9, characterized in that: The supporting method comprises the following steps: S1: The crossbeam (2) is mounted on the frame (1), and the two ends of the crossbeam (2) are slidably mounted on the slide rails (3) by means of the extension block (6), and the mounting frame (7) is fixedly mounted by means of the cooperation between the mounting rod (26) and the mounting block (8); S2: by cooperating between the vertical rod (12) and the through hole (15), the right-angle support plates (5) at both ends of the crossbeam (2) are installed, and the cross plate (11) and the middle plate (30) are installed on the right-angle support plate (5) and the mounting frame (7) respectively, so that the spherical half groove (37) fits tightly against the top ball (10); S3: Installing a processing tool device and a driving device on the mounting frame (7), the middle section of the cross beam (2) is subjected to force due to the increase in gravity, and has a tendency to deform and bend downward, the extrusion force acts on the arc-shaped support plate (28) and the top ball (10), and the top ball (10) has a tendency to be extruded downward, and the cross plate (11) and the middle plate (30) are relatively fixed to achieve the purpose of supporting the top ball (10), and the force is transmitted to the right-angle support plate (5) to exert lateral extrusion on the side wall of the frame (1), thereby achieving the purpose of fixing the position of the cross beam (2); S4: When position adjustment is required, the air pump (23) is used to inflate the airbag (22), so that the crossbeam (2) rises. At this time, the top ball (10) is separated from the spherical half groove (37), the lateral squeezing force disappears, the crossbeam (2) is released, and at the same time, the roller (21) is attached to the slide rail (3) through the lifting movement, which is convenient for lateral drive adjustment.

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