High-rigidity rectangular frame integral beam structure

Abstract

The application discloses a high-rigidity rectangular frame integral beam structure, which comprises an integral frame formed by two columns and a beam and a main shaft arranged on a slide plate sleeve, and further comprises a stress connecting mechanism, which comprises: a turnover plate rotationally connected to the column; and two mutually hinged slide supporting strips, which are slidingly connected to the integral frame and abut against the first end of the turnover plate, and the hinge points are directed to the center point of the beam. The high-rigidity rectangular frame integral beam structure is characterized in that the column and the beam are integrally cast into an integral frame, and the turnover plate and the slide supporting strip are added in the integral frame, so that the turnover plate and the slide supporting strip are mutually abutted and kept in tension, the stress during deformation of the beam is transmitted, the slide supporting strip in tension also abuts against the integral frame, the rigidity of the center point of the beam is increased, the deformation amplitude is reduced, and the precision during cutting of the main shaft is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gantry machining centers, in particular to a high-rigidity rectangular frame integral beam structure. BACKGROUND

[0002] The gantry machining center is a large machining center machine with a portal frame structure, which is composed of double columns and a beam to support the main shaft. The frame formed by integrally casting the double columns and the beam is an integral beam structure.

[0003] According to patent number CN110860914A, published (announced) on March 6, 2020, a kind of beam mechanism of gantry machining center, including beam box and the main shaft assembly being arranged in beam box, Y-axis guide rail pair is equipped on the top surface and bottom surface of beam box;The main shaft assembly includes oppositely arranged upper connecting plate and lower connecting plate, upper fixed plate and lower fixed plate, Y-axis feed mechanism and main shaft box, Z-axis guide rail pair is equipped on the both sides of main shaft box, main shaft motor, connecting shaft and main shaft are arranged in main shaft box, Y-axis slider is arranged on upper connecting plate and lower connecting plate, upper fixed plate and lower fixed plate are right-angle bent plate, one end is fixed Z-axis slider, the other end is fixed with upper connecting plate and lower connecting plate respectively.Compared with the prior art, the beam mechanism provided by the present application directly connects the main shaft assembly through the upper connecting plate and the lower connecting plate and the upper fixed plate and the lower fixed plate, reduces the space occupied by the main shaft box, has good structure process, the overall structure is strong, suitable for modular design and mass production.

[0004] According to the literature number 1674-957X (2022) 13-0049-03, the mechanical analysis of the beam of the gantry machining center and the guide rail deformation compensation is disclosed. The deformation amount of the X direction and Z direction of the beam remains basically constant and changes little with the change of the position of the slide, the beam and the ram. The deformation amount of the Y direction of the beam has a greater relationship with the stroke of the slide, and a smaller relationship with the change of the position of the beam and the ram. When the slide position is at the middle position of the beam, the beam deformation amount and the Y direction deformation amount are maximum, and gradually decrease towards both ends, and the maximum displacement can reach 0.08092539 mm. Through the analysis of the deformation of the ram, it is found that the larger the stroke of the ram, the larger the deformation. The structure of the ram can be modified or other auxiliary support structures can be added to improve the rigidity of the beam and the ram.

[0005] In the prior art including the above-mentioned patent, the main shaft and the matching slide plate are arranged on the beam to enable the main shaft carried by the slide plate to move along the beam in Y-axis and Z-axis directions. However, the beam spans the length of the workbench, which is relatively long, resulting in deformation of the beam when the main shaft carried by the slide plate moves to the middle position of the beam. With the increase of the length of the beam, the degree of deformation also increases, which leads to a sharp decrease in cutting accuracy for machine tools with a relatively large Y-axis length. SUMMARY

[0006] The purpose of the present application is to provide a high-rigidity rectangular frame integral beam structure, aiming to solve the problem that the gravity of the main shaft and the matching slide plate will cause the deformation of the machine tool with a large Y-axis length, affecting the precision.

[0007] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a high-rigidity rectangular frame integral beam structure, comprising an integral frame composed of two columns and a beam, and a main shaft arranged on a slide sleeve, further comprising a stress connecting mechanism, which comprises:

[0008] A turnover plate is rotationally connected to the column;

[0009] Two sliding support bars are hingedly connected to each other and are slidingly connected to the integral frame and abut against the first end of the turnover plate, and the hinge point is directed to the center point of the beam;

[0010] A connecting plate is arranged between the second ends of the two turnover plates, so that the turnover plate and the sliding support bar are kept in tension to support the main shaft.

[0011] As a preferred, further comprising a pressing assembly, which comprises a telescopic rod abutting between the two sliding support bars, and the three are in the shape of an isosceles triangle, and the hinge point coincides with the vertex of the isosceles triangle.

[0012] As a preferred, the telescopic rod comprises a threaded sleeve and a threaded rod which are threadedly connected to each other, the threaded sleeve is driven to rotate along the threaded rod to abut against the two sliding support bars to form an isosceles triangle.

[0013] As a preferred, the connecting plate is movably connected to the bottom of the integral frame, and the connecting plate is driven to approach the integral frame to push the turnover plate to turn and tension.

[0014] As a preferred, a locking column is slidingly connected to the threaded sleeve, the locking column is in interference fit with the sliding support bar when the threaded sleeve rotates, and the sliding support bar abuts against the beam.

[0015] As a preferred, a through groove is formed in the threaded sleeve, and a clamping plate is slidingly connected in the through groove, and the clamping plate is driven to slide into a clamping groove formed in the threaded rod to be locked.

[0016] As a preferred, the connecting plate is assembled in the following two workstations under stress:

[0017] The first workstation: the beam is deformed under the gravity of the slide sleeve, so that the two columns are pulled away from each other to pull the connecting plate;

[0018] The second workstation: the beam is deformed under the cutting and pushing force of the main shaft, so that the two columns are pushed towards each other to push the connecting plate.

[0019] As preferred, a cavity is formed in the integrated frame, and a combined support plate is symmetrically arranged in the cavity, and the two embrace a sliding cavity, and the turnover plate and the sliding support strip are arranged in the sliding cavity.

[0020] As preferred, the combined support plate comprises a second triangular support, a first triangular support and a third triangular support connected with each other in sequence, and the three are provided with triangular frames of different sizes according to predetermined specifications.

[0021] As preferred, the second triangular support is provided with a second intercepting plate parallel to the bottom edge at the center of the hypotenuse, and a second inclined partition plate is arranged between the second intercepting plate and the right angle of the second triangular support.

[0022] The first triangular support is provided with a first intercepting plate parallel to the bottom edge at one third of the hypotenuse, and a first inclined partition plate is arranged between the first intercepting plate and the right angle of the first triangular support.

[0023] The third triangular support is provided with a fourth inclined partition plate between the center of the hypotenuse and the right angle.

[0024] In the above technical solution, the high-rigidity rectangular frame overall beam structure provided by the application has the following beneficial effects: the stand and the beam are integrally cast into an integrated frame, and a turnover plate and a sliding support strip are added in the integrated frame, so that the turnover plate and the sliding support strip are adhered to each other to maintain the tension thereof, to transmit the stress when the beam deforms, and the tensioned sliding support strip also abuts against the integrated frame, increasing the rigidity of the center point of the beam, reducing the deformation amplitude to increase the precision during main shaft cutting. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0026] Figure 1 The overall schematic diagram provided for the embodiments of the present application;

[0027] Figure 2 The overall explosion schematic diagram provided for the embodiments of the present application;

[0028] Figure 3 The explosion schematic diagram of the stress connection mechanism provided for the embodiments of the present application;

[0029] Figure 4 The Figure 3 The enlarged schematic diagram of A in the middle;

[0030] Figure 5 for Figure 3 a middle B in the enlarged schematic view;

[0031] Figure 6 a schematic view of the overall side surface provided by the embodiment of the present application;

[0032] Figure 7 a partial structural schematic view of the stress connecting mechanism provided by the embodiment of the present application;

[0033] Figure 8 a double-sided schematic view of the combined support plate provided by the embodiment of the present application;

[0034] Figure 9 a schematic view of the overall cross section provided by the embodiment of the present application;

[0035] Figure 10 for Figure 9 a middle C in the enlarged schematic view;

[0036] Figure 11 a schematic view of the main shaft stop stress direction of the integrated frame provided by the embodiment of the present application;

[0037] Figure 12 a schematic view of the main shaft start stress direction of the integrated frame provided by the embodiment of the present application.

[0038] BRIEF DESCRIPTION OF DRAWINGS

[0039] 1, integrated frame; 10, combined support plate; 100, first triangular support; 1001, first intercepting plate; 1002, first inclined partition plate; 101, second triangular support; 1011, second intercepting plate; 1012, second inclined partition plate; 102, connecting plate; 1021, third inclined partition plate; 1022, third intercepting plate; 103, third triangular support; 1031, fourth inclined partition plate; 11, cavity; 111, rotating shaft; 12, connecting plate; 121, supporting head; 13, sliding groove; 131, exposed groove; 14, communication groove; 2, bearing plate; 21, side connecting part; 3, stress connecting mechanism; 31, overturning plate; 311, supporting triangular groove; 312, buckling groove; 32, sliding support strip; 4, pressing assembly; 41, threaded sleeve; 411, fixing hole; 412, through groove; 42, threaded rod; 421, half groove; 422, clamping groove; 43, clamping plate; 44, sliding block; 45, locking column; 5, sliding plate sleeve; 51, main shaft. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0041] like Figures 1-10 As shown, a high-rigidity rectangular frame integral beam structure includes an integral frame 1 composed of two columns and a beam, and a main shaft 51 mounted on a sliding plate sleeve 5. It also includes a stress connection mechanism 3, which comprises:

[0042] The flip plate 31 is rotatably connected to the column;

[0043] Two hinged sliding support bars 32 are slidably connected to the integral frame 1 and abut against the first end of the flip plate 31, with the hinge point facing the center point of the crossbeam.

[0044] A connecting plate 12 is provided between the second ends of the two flip plates 31 to keep the flip plates 31 and the sliding support bar 32 taut to support the main shaft 51.

[0045] Specifically, the integrated frame 1 is provided with a support plate 2, and the support plate 2 is provided with a side connecting part 21 for connecting the slide sleeve 5, so as to... Figure 3 For reference, the first end of the flip plate 31 is the upper end, and the second end is the lower end. The flip plate 31 is an isosceles triangle bracket composed of two supporting triangular grooves 311 (slender right-angled triangles). A rotating shaft 111 is provided on the integrated frame 1, and the flip plate 31 is rotatably connected to the rotating shaft 111. A fastening groove 312 is provided at the first end of the flip plate 31. The two sliding support bars 32 flip against each other and slide along the integrated frame 1 to fit into the fastening groove 312 to transmit stress under tension. When the skateboard sleeve 5 carries the main shaft 51 to the center of the crossbeam, the skateboard sleeve will... The weight of 5 and the main shaft 51 causes deformation at the center point of the crossbeam (the deformation is 0.08 mm and will increase as the Y-axis lengthens). At this time, the deformation will drive the sliding support bar 32 to slide and push against the flip plate 31 to flip (sliding and flipping are stress directions generated by the deformation of the metal itself, rather than sliding and flipping that are easily known in the art). The second ends of the two flip plates 31 have been tensioned by the connecting plate 12, so that the deformation stress of the crossbeam is transmitted to the connecting plate 12 that is in contact with the ground to offset the stress, reduce deformation, and increase rigidity.

[0046] In the technical scheme, the column and the beam are integrally cast into the integrated frame 1, and the turnover plate 31 and the sliding support bar 32 are added in the integrated frame 1, so that the turnover plate 31 and the sliding support bar 32 are kept in close contact with each other to maintain the tension of the sliding support bar 32, to transmit the stress when the beam deforms, and the tensioned sliding support bar 32 also abuts against the integrated frame 1, increasing the rigidity of the center point of the beam, reducing the deformation range to increase the accuracy when the main shaft 51 cuts.

[0047] As an embodiment provided by the present application, the pressing assembly 4 further comprises a telescopic rod abutting between the two sliding support bars 32, and the three are clamped into an isosceles triangle, and the hinge point coincides with the vertex of the isosceles triangle.

[0048] Specifically, the integrated frame 1 is provided with a sliding groove 13, and the sliding groove 13 is symmetrically connected with a sliding block 44, and the telescopic rod is arranged between the two sliding blocks 44. When the integrated frame 1 is installed, the telescopic rod is extended to push the two sliding blocks 44 to slide along the sliding groove 13 and abut against the two sliding support bars 32 respectively, so that the two sliding support bars 32 become two sides of an isosceles triangle, and the telescopic rod becomes the bottom side of the isosceles triangle, so as to increase the rigidity of the beam by the triangular structure, reduce the deformation range, and the vertex of the isosceles triangle coincides with the hinge point to increase the rigidity of the maximum deformation range of the beam (i.e. the center of the beam) for support.

[0049] When installed, first, the turnover plate 31 is arranged on the column, then the telescopic rod is extended to push the sliding support bar 32 to abut against the turnover plate 31, and finally the integrated frame 1 is inserted into the continuous plate 12 fixed on the ground to turn the two turnover plates 31 to abut against the sliding support bar 32 to support and tension the beam. When the center point of the beam deforms, the sliding support bar 32 will be driven to slide with the deformation to push the turnover plate 31 to turn, and the second end of the two turnover plates 31 is tensioned by the continuous plate 12, so that the deformation stress of the beam is transmitted to the continuous plate 12 abutting against the ground.

[0050] The telescopic rod can be a support rod connected with each other in sliding mode, one of the support rods is provided with a clamping hole in linear array, the support rod is slid to expose the clamping hole, and a clamping block is clamped into the clamping hole to lock the telescopic rod. Alternatively, it can be a support column and a bearing sleeve connected with each other in sliding mode, and a pad is arranged between the support column and the bearing sleeve to extend the support column. Alternatively, it can be other structures known to those skilled in the art.

[0051] As a further embodiment provided by the present application, the telescopic rod comprises a threaded sleeve 41 and a threaded rod 42 connected with each other in screw mode, the threaded sleeve 41 is driven to rotate along the threaded rod 42 to abut against the two sliding support bars 32 to form an isosceles triangle.

[0052] Specific, the telescopic rod is positioned on the sliding groove 13, and then the threaded sleeve 41 and the threaded rod 42 are rotated, so that the threaded rod 42 extends out of the threaded sleeve 41 and pushes the two sliding blocks 44 to slide along the sliding groove 13, so that the two sliding support bars 32 are tightly attached to the turnover plate 31 and are further tensioned to increase the rigidity of the cross beam.

[0053] During installation, first, the turnover plate 31 is arranged on the stand, then the telescopic rod is placed in the sliding groove 13, and then the threaded sleeve 41 and the threaded rod 42 are rotated, so that the threaded rod 42 extends out of the threaded sleeve 41 and pushes the sliding support bar 32 to turn over and tightly attach to the turnover plate 31, and finally the integrated frame 1 is inserted and fixed on the continuous plate 12 on the ground, so that the two turnover plates 31 push the sliding support bars 32 to tightly attach to the cross beam and are tensioned, and when the center point of the cross beam is deformed, the sliding support bars 32 are driven to slide and push the turnover plates 31 to turn over, and the second ends of the two turnover plates 31 are tensioned by the continuous plate 12, so that the deformation stress of the cross beam is transmitted to the continuous plate 12 attached to the ground.

[0054] As the most preferred embodiment of the present application, the continuous plate 12 is movably connected to the bottom of the integrated frame 1, and the continuous plate 12 is driven to approach the integrated frame 1 to push the turnover plate 31 to turn over and be tensioned.

[0055] Specifically, the continuous plate 12 is movably connected to the bottom of the integrated frame 1, and the continuous plate 12 is driven to approach the integrated frame 1 to push the turnover plate 31 to turn over and be tensioned.

[0056] During installation, first, the turnover plate 31 is arranged on the stand, then the telescopic rod is placed in the sliding groove 13, and then the threaded sleeve 41 and the threaded rod 42 are rotated, so that the threaded rod 42 extends out of the threaded sleeve 41 and pushes the sliding support bar 32 to turn over and tightly attach to the turnover plate 31, and finally the integrated frame 1 is inserted and fixed on the continuous plate 12 on the ground, so that the two turnover plates 31 push the sliding support bars 32 to tightly attach to the cross beam and are tensioned, and when the center point of the cross beam is deformed, the sliding support bars 32 are driven to slide and push the turnover plates 31 to turn over, and the second ends of the two turnover plates 31 are tensioned by the continuous plate 12, so that the deformation stress of the cross beam is transmitted to the continuous plate 12 attached to the ground.

[0057] As the most optimal embodiment provided by the present application, the locking column 45 is slidingly connected to the threaded sleeve 41, and the locking column 45 is in interference fit with the sliding support bar 32 when the threaded sleeve 41 rotates, and the sliding support bar 32 abuts against the cross beam;

[0058] The threaded sleeve 41 is provided with a through groove 412, and the clamping plate 43 is slidingly connected in the through groove 412, and the clamping plate 43 is driven to slide into the clamping groove 422 provided on the threaded rod 42 to be locked.

[0059] Specifically, the threaded sleeve 41 is provided with a fixing hole 411, and the locking column 45 is slidingly connected to the fixing hole 411, and the threaded rod 42 is provided with a half groove 421, and before the integrated frame 1 is installed on the continuous plate 12, the threaded rod 42 is first extended out of the threaded sleeve 41 to abut against the sliding support bar 32, the locking column 45 is slidingly connected to the fixing hole 411, and then the threaded sleeve 41 is continuously rotated to slide the locking column 45 along the fixing hole 411 and clamp the locking column 45 between the half groove 421 and the sliding support bar 32, at this time, the through groove 412 and the clamping groove 422 are coincided, the clamping plate 43 can be clamped into the clamping groove 422 to be locked, and the sliding support bar 32 is pushed against the cross beam, at this time, the locking column 45 realizes a small interference fit, and the sliding support bar 32 is preliminarily fixed while the stress is transmitted, and then when the integrated frame 1 is installed on the continuous plate 12, the turnover plate 31 is turned over with the continuous plate 12 to push against the sliding support bar 32 to be tensioned, at this time, the locking column 45 assists the support of the isosceles triangle to increase the rigidity again.

[0060] When installed, first, the turnover plate 31 is arranged on the stand, then the telescopic rod is put into the sliding groove 13, and then the threaded sleeve 41 and the threaded rod 42 are rotated to extend the threaded rod 42 out of the threaded sleeve 41 to push against the sliding support bar 32 to be turned over and abut against the turnover plate 31, at the same time, the locking column 45 is clamped between the threaded rod 42 and the sliding support bar 32, finally, the integrated frame 1 is inserted and fixed on the continuous plate 12 on the ground to drive the turnover plate 31 to turn over by the guide groove to push against the sliding support bar 32 to abut against the cross beam to be supported and tensioned, when the center point of the cross beam is deformed, the sliding support bar 32 is driven to slide with the deformation to push against the turnover plate 31 to turn over, and the second ends of the two turnover plates 31 are tensioned by the continuous plate 12, so that the deformation stress of the cross beam is transmitted to the continuous plate 12 abutting against the ground.

[0061] As the most optimal embodiment provided by the present application, the continuous plate 12 is assembled to bear stress at the following two stations:

[0062] The first station: the cross beam is deformed by the gravity of the sliding plate sleeve 5 to pull the continuous plate 12 away from the two stands;

[0063] The second station: the cross beam is deformed by the cutting and pushing force of the main shaft 51 to push the continuous plate 12 close to the two stands.

[0064] Specifically, when the continuous loading plate 12 is in the first working position, the force direction is as shown in the figure Figure 11 When the cross beam is deformed by the gravity of the sliding sleeve 5, the two columns will move away from each other to pull the continuous loading plate 12 to disperse the stress, and the sliding support bar 32 will push against the turnover plate 31 as the cross beam deforms, so as to push against the continuous loading plate 12, at this time, the pulling stress and the pushing stress are all borne by the continuous loading plate 12, transmitted to the ground and cancelled, so as to increase the rigidity of the integrated frame 1 when the main shaft 51 is not cutting, and increase the accuracy of the main shaft 51.

[0065] When the continuous loading plate 12 is in the second working position, the force direction is as shown in the figure Figure 12 When the cross beam is deformed by the cutting pushing force of the main shaft 51 (the size of the tool and the cutting amount of the tool when cutting are increased when the parts are machined by the gantry machining center, and the stress generated is also increased), the cross beam is deformed upward, and the two columns move close to each other to generate pushing stress on the continuous loading plate 12, and the turnover plate 31 also pushes against the continuous loading plate 12, so that the continuous loading plate 12 bears two pushing stresses and transmits them to the ground, at this time, the vibration when the main shaft 51 is cutting can be transmitted, and a certain rigidity is maintained, so as to increase the accuracy of the main shaft 51.

[0066] When installing, first, the turnover plate 31 is arranged on the column, then the telescopic rod is put into the sliding groove 13, then the threaded sleeve 41 and the threaded rod 42 are rotated to make the threaded rod 42 extend out of the threaded sleeve 41 to push against the sliding support bar 32 to turn over and adhere to the turnover plate 31, and the locking column 45 is clamped between the threaded rod 42 and the sliding support bar 32, finally, the integrated frame 1 is inserted into the continuous loading plate 12 fixed on the ground, so as to drive the turnover plate 31 to turn over and push against the sliding support bar 32 to adhere to the cross beam and be tensioned, when the continuous loading plate 12 is in the first working position, the center point of the cross beam deforms due to the self-weight of the main shaft 51, the columns move away from each other to pull the continuous loading plate 12 to disperse the stress, and the deformation stress of the cross beam is transmitted to the continuous loading plate 12 adhering to the ground through the turnover plate 31, when the continuous loading plate 12 is in the second working position, the two columns move close to each other to generate pushing stress on the continuous loading plate 12, and the continuous loading plate 12 bears two pushing stresses and transmits them to the ground.

[0067] As an embodiment provided by the present application, a cavity 11 is formed in the integrated frame 1, and a combined support plate 10 is symmetrically arranged in the cavity 11, and the two combined support plates 10 embrace to form a sliding cavity, and the turnover plate 31 and the sliding support bar 32 are arranged in the sliding cavity.

[0068] Specifically, the combined support plate 10 divides the cavity 11 into sliding cavities, which are divided into three parts in communication, and the three parts are triangular cavities on the two columns and a triangular cavity on the crossbeam. The combined support plate 10 is made of carbon steel and is welded in the cavity 11 to assist fixation and increase rigidity. The combined support plate 10 is cast iron casting, which saves cost and has the ability of buffering and absorbing vibration. The turnover plate 31 is arranged in the triangular cavity on the two columns, and the sliding support strip 32 is arranged in the triangular cavity on the crossbeam.

[0069] As another embodiment provided by the present application, the combined support plate 10 includes a second triangular support 101, a first triangular support 100 and a third triangular support 103 connected in sequence, and the three triangular frames have triangular frames of different sizes.

[0070] Specifically, the first triangular support 100 and the third triangular support 103 are fixed by the connecting plate 102 arranged therebetween. The first triangular support 100 and the third triangular support 103 are arranged on the columns, and the second triangular support 101 is arranged on the crossbeam and fixedly connected with the first triangular support 100. The three triangular frames have good supporting capacity, and the three triangular frames have triangular frames of different sizes, so that when the main shaft 51 is cut and vibrates, the forced vibration (periodic driving force) generated when the cutter is cut is converted into free vibration (no periodic driving force) through the triangular frames of different sizes. Because the space of each triangular frame is different, the vibration frequency is changed to avoid resonance to damage the integrated frame 1 and the main shaft 51.

[0071] As the optimal embodiment provided by the present application, the second triangular support 101 has a second blocking plate 1011 parallel to the bottom edge arranged at the center of the hypotenuse, and a second inclined partition plate 1012 is arranged between the second blocking plate 1011 and the right angle of the second triangular support 101.

[0072] The first triangular support 100 has a first blocking plate 1001 parallel to the bottom edge arranged at one third of the hypotenuse, and a first inclined partition plate 1002 is arranged between the first blocking plate 1001 and the right angle of the first triangular support 100.

[0073] The third triangular support 103 has a fourth inclined partition plate 1031 arranged between the center of the hypotenuse and the right angle.

[0074] Specifically, the second triangular support 101 is divided into a first group of three triangles of different sizes by the second intercepting plate 1011 and the second inclined partition plate 1012, the first triangular support 100 is divided into a second group of three triangles of different sizes by the first intercepting plate 1001 and the first inclined partition plate 1002, the first triangular support 100 is divided into a third group of two triangles of different sizes by the fourth inclined partition plate 1031, and the sizes of the three groups of triangles are different. The connecting plate 102 covers two-thirds of the first triangular support 100 and the third triangular support 103, so that the shape of the connecting plate 102 inherits the part of the first triangular support 100 and the third triangular support 103, the triangle, and the part between the first triangular support 100 and the third triangular support 103. The connecting plate 102 is divided into a rectangle by two third inclined partition plates 1021, and a third intercepting plate 1022 is arranged on the diagonal line of the rectangle to divide two identical triangles, so as to enhance the ability to eliminate resonance.

[0075] When installed, first, the turnover plate 31 is arranged on the stand, then the telescopic rod is put into the sliding groove 13, then the threaded sleeve 41 and the threaded rod 42 are rotated to make the threaded rod 42 extend out of the threaded sleeve 41 to push the sliding support bar 32 to flip and adhere to the turnover plate 31, and the locking column 45 is clamped between the threaded rod 42 and the sliding support bar 32, and finally the integrated frame 1 is inserted into the continuous plate 12 fixed to the ground to drive the turnover plate 31 to flip by the guide groove to push the sliding support bar 32 to adhere to the cross beam support and be tensioned. When the continuous plate 12 is in the first station, the center point of the cross beam deforms due to the weight of the main shaft 51, the stands move away from each other to pull the continuous plate 12 to disperse stress, and the deformation stress of the cross beam is transmitted to the continuous plate 12 adhering to the ground through the turnover plate 31. When the continuous plate 12 is in the second station, the two stands move close to each other to generate a pushing stress on the continuous plate 12 when the main shaft 51 is cutting, and the continuous plate 12 bears the two pushing stresses and transmits them to the ground. At the same time, the plurality of triangles of different sizes can change the frequency of the vibration generated by the main shaft 51 during cutting through internal rebound to avoid resonance.

[0076] The above describes certain exemplary embodiments of the present application by way of illustration only, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present application.

Claims

1. A high-rigidity rectangular frame integral beam structure, comprising an integral frame (1) composed of two columns and a beam, and a main shaft (51) mounted on a sliding plate sleeve (5), characterized in that, It also includes a stress connection mechanism (3), which comprises: The flip plate (31) is rotatably connected to the column. The flip plate (31) is an isosceles triangular support composed of two supporting triangular grooves (311). Two hinged sliding support bars (32) are slidably connected to the integral frame (1) and abut against the first end of the flip plate (31), with the hinge point facing the center point of the crossbeam. A connecting plate (12) is provided between the second ends of the two flip plates (31) to keep the flip plates (31) and the sliding support bar (32) taut to support the main shaft (51). It also includes a pressure assembly (4), which includes a telescopic rod abutting between the two sliding support bars (32), the three of which are clamped together to form an isosceles triangle, with the hinge point coinciding with the vertex of the isosceles triangle.

2. The high-rigidity rectangular frame integral beam structure according to claim 1, characterized in that, The telescopic rod includes a threaded sleeve (41) and a threaded rod (42) that are threaded together. The threaded sleeve (41) is driven to rotate and extends along the threaded rod (42) to abut against the two sliding support bars (32) to form an isosceles triangle.

3. The high-rigidity rectangular frame integral beam structure according to claim 1, characterized in that, The connecting plate (12) is movably connected to the bottom of the integrated frame (1). The connecting plate (12) is driven to approach the integrated frame (1) to push against the flip plate (31) and flip it to tension.

4. The high-rigidity rectangular frame integral beam structure according to claim 2, characterized in that, A locking pin (45) is slidably connected to the threaded sleeve (41). The locking pin (45) rotates with the threaded sleeve (41) and is in interference fit with the sliding support bar (32), causing the sliding support bar (32) to abut against the crossbeam.

5. A high-rigidity rectangular frame integral beam structure according to claim 4, characterized in that, The threaded sleeve (41) has a through groove (412), and a snap-fit ​​plate (43) is slidably connected in the through groove (412). The snap-fit ​​plate (43) is driven to slide into the snap-fit ​​groove (422) on the threaded rod (42) to lock.

6. The high-rigidity rectangular frame integral beam structure according to claim 3, characterized in that, The connecting plate (12) is subjected to force at the following two stations: First station: The crossbeam is deformed by the gravity of the sliding plate sleeve (5) so that the two columns are pulled away from each other and the connecting plate (12) is pulled away. Second station: The crossbeam is deformed by the cutting and pushing force of the main shaft (51) so that the two columns move closer to each other and push against the connecting plate (12).

7. The high-rigidity rectangular frame integral beam structure according to claim 1, characterized in that, The integrated frame (1) has a cavity (11) inside, and a combination support plate (10) is symmetrically arranged inside the cavity (11). The two are clamped together to form a sliding cavity, and the flip plate (31) and the sliding support bar (32) are arranged inside the sliding cavity.

8. A high-rigidity rectangular frame integral beam structure according to claim 7, characterized in that, The combined support plate (10) includes a second triangular support (101), a first triangular support (100) and a third triangular support (103) connected in sequence, and the three are provided with triangular frames of different sizes according to predetermined specifications.

9. A high-rigidity rectangular frame integral beam structure according to claim 8, characterized in that, The second triangular bracket (101) has a second blocking plate (1011) parallel to the bottom edge at the center of the hypotenuse, and a second oblique partition (1012) is provided between the second blocking plate (1011) and the second triangular bracket (101) at a right angle. A first blocking plate (1001) parallel to the bottom edge is provided at one-third of the hypotenuse of the first triangular bracket (100), and a first oblique partition (1002) is provided between the first blocking plate (1001) and the first triangular bracket (100) at a right angle. A fourth oblique partition (1031) is provided between the center of the hypotenuse and the right angle of the third triangular bracket (103).

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