Supporting device for stone cutting machine

Abstract

The utility model relates to the technical field of stone machining, in particular to a supporting device for a stone cutting machine, the stone cutting machine comprises a lifting frame body and a spindle box, a bearing seat is installed on a main output shaft of the spindle box, and the supporting device comprises a first supporting frame and a second supporting frame; the first supporting frame comprises a matching plate and a connecting plate. The connecting plate is provided with a first end and a second end. The first end is fixed to the lower end of the matching plate, the upper end of the second supporting frame is rotationally connected to the second end, and the lower end of the second supporting frame is detachably connected to the bearing seat; fixing holes are formed in the second supporting frame and the second end and connected with fixing pieces. After the technical scheme is adopted, the positions of the fixing pieces are relatively low, obstacles such as a spindle box do not exist below the fixing pieces, an operator can disassemble the fixing pieces conveniently, the fixing pieces and the corresponding fixing holes can be separated and installed without climbing in the disassembling process, and the assembling and disassembling processes are relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of stone processing, and particularly relates to a supporting device for a stone cutting machine. Background Art

[0002] A supporting device for a stone cutting machine is disclosed in the Chinese utility model patent with the authorization announcement number CN218139046 U. When using this supporting device to repair the main output shaft or replace the cutting blade group, the assembly between the second mating plate and the bearing seat is disassembled, and then each fixing member is separated from the corresponding fixing hole to disassemble the assembly structure between the support plate and the first mating plate. Then, the piston rod of the hydraulic cylinder is extended to drive the connecting plate to move upward, so that the second mating plate moves upward with the rotating member as the base point, and further the support frame body moves upward to separate the support frame body from the main output shaft. After the replacement of the cutting blade group is completed and the stone cutting machine needs to work normally, the piston rod of the hydraulic cylinder retracts to drive the connecting plate to move downward, so that the second mating plate moves downward with the rotating member as the base point, and then the second mating plate is installed with the bearing seat, and further the installation of the support frame body and the bearing seat is realized. Then, each fixing member is respectively installed in the corresponding fixing hole to strengthen the fixation between the support plate and the lifting frame body. Subsequently, the stone cutting machine can work. However, when separating the fixing member from the fixing hole or installing the fixing member into the fixing hole, since the assembly position of the fixing member is relatively high and there are obstacles such as a main spindle box under the first mating plate, the operator cannot directly operate on the ground and needs to climb to disassemble, resulting in the entire assembly and disassembly process being relatively inconvenient.

[0003] In view of this, the applicant has conducted in-depth research on the above problems, and thus this case has been generated. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a supporting device with a relatively convenient assembly and disassembly process.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A support device for a stone cutting machine, the stone cutting machine includes a lifting frame body and a main spindle box installed on the lifting frame body, a bearing seat with bearings is installed on the main output shaft of the main spindle box, and the support device includes a first support frame and a second support frame; the first support frame includes a mating plate vertically arranged and fixed on the lifting frame body and a connecting plate horizontally arranged, the second support frame is vertically arranged, one end of the connecting plate is the first end, and the other end of the connecting plate is the second end; the first end is fixed to the lower end of the mating plate, the upper end of the second support frame is rotatably connected to the second end, and the lower end of the second support frame is detachably connected to the bearing seat; fixing holes corresponding to each other are respectively formed in the upper end of the second support frame and the second end, and the same fixing member is connected in the two corresponding fixing holes.

[0007] Preferably, a rotating group is arranged on the second end, and the rotating group includes a mounting seat, a mounting lug and a rotating member; the mounting seat is fixed to the second end; the mounting lug is fixed to the upper end of the second support frame, mounting holes corresponding to each other are respectively formed in the mounting lug and the mounting seat, and the rotating member is inserted into the two corresponding mounting holes.

[0008] Preferably, there are multiple rotating groups, mounting lugs are correspondingly arranged on both sides of each mounting seat, and the rotating members are coaxially arranged.

[0009] Preferably, a driving device for driving the second support frame to rotate around the axis of the rotating member is further included, the housing of the driving device is rotatably installed on the connecting plate, and the output end of the driving device is rotatably installed on the second support frame.

[0010] Preferably, a support plate is further provided, the support plate is fixed on the lifting frame body, and the mating plate is indirectly fixed on the lifting frame body by being fixed on the support plate.

[0011] Preferably, a plurality of corresponding assembly holes are respectively formed in the upper part of the support plate and the lifting frame body; a plurality of corresponding assembly holes are respectively formed in the lower part of the support plate and the lifting frame body, and the same fitting is connected in the two corresponding assembly holes.

[0012] Preferably, a stiffening plate is installed on the first support frame, the stiffening plate has a first side edge and a second side edge, the first side edge is fixed to the mating plate, and the second side edge is fixed to the connecting plate.

[0013] Preferably, there are multiple stiffening plates, each stiffening plate is arranged at linear intervals, and a cross partition is connected between adjacent two stiffening plates.

[0014] Preferably, a first stiffening rib is fixed to the support plate; and / or a second stiffening rib is fixed to the second support frame.

[0015] Preferably, at least one first locking hole is formed in the bearing seat, and a second locking hole is formed in the second support frame at a position corresponding to each of the first locking holes. The corresponding first locking hole and the second locking hole are connected by the same locking member.

[0016] Adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0017] 1. By rotatably connecting the upper end of the second support frame to the first support frame, detachably connecting the lower end of the second support frame to the bearing seat, and respectively forming corresponding fixing holes at the upper end and the second end of the second support frame, and connecting the same fixing member in the two corresponding fixing holes, when repairing the main output shaft or replacing the cutting blade group, compared with a support device for a stone cutting machine disclosed in the authorized publication number CN218139046U, the position of the fixing member is relatively low, and there are no obstacles such as a main spindle box below the fixing member, which is convenient for the operator to disassemble. During the disassembly process, it is not necessary to climb, and the separation and installation of each fixing member and the corresponding fixing hole can be completed. The assembly and disassembly process is relatively convenient.

[0018] 2. By respectively forming corresponding fixing holes at the upper end and the second end of the second support frame, and each pair of corresponding fixing holes is provided with a fixing member, it is beneficial to ensure that the main spindle box does not shake during the operation of the stone cutting machine.

[0019] 3. By installing a stiffening plate on the first support frame, it is beneficial to increase the overall stiffness of the first support frame and reduce the deformation of the first support frame under the action of load.

[0020] 4. By arranging a diaphragm between adjacent stiffening plates, the overall stability of the stiffening plates can be increased, preventing local buckling or distortion of the stiffening plates when stressed. At the same time, arranging the diaphragm also helps to more evenly distribute the load between the stiffening plates and reduce local stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the support device of the present utility model in a fixed state;

[0022] Figure 2 is a schematic structural diagram of the support device of the present utility model in a movable state;

[0023] Figure 3 is a schematic structural diagram at the position of the bearing seat;

[0024] Figure 4 is an assembly schematic diagram of the present utility model in a single-beam four-column stone cutting machine;

[0025] Figure 5 Another perspective schematic diagram of Figure 4 ;

[0026] Figure 6 Assembly schematic diagram of the utility model on a gantry stone cutting machine;

[0027] Figure 7 Another perspective schematic diagram of Figure 6 ;

[0028] Figure 8 Assembly schematic diagram of the utility model on a double - beam column type stone cutting machine;

[0029] Figure 9 Another perspective schematic diagram of Figure 8 ;

[0030] Figure 10 Structural schematic diagram of a single - arm suspended stone cutting machine.

[0031] In the figure:

[0032] 10 - First support frame; 11 - Fitting plate;

[0033] 12 - Connecting plate; 13 - Stiffening plate;

[0034] 14 - Mounting seat; 15 - Rotating part;

[0035] 20 - Second support frame; 21 - Mounting lug;

[0036] 22 - Second stiffening rib; 23 - Second locking hole;

[0037] 30 - Driving device;

[0038] 40 - Support plate; 41 - Assembly hole;

[0039] 42 - First stiffening rib; 43 - Second assembly hole;

[0040] 901 - Lifting frame body; 902 - Spindle box;

[0041] 903 - Main output shaft; 904 - Bearing seat;

[0042] 905 - Main machine middle seat 906 - First locking hole. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the utility model more clear and understandable, the following further details the utility model with reference to embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0044] Embodiment 1

[0045] like Figures 1 to 2 As shown, this embodiment provides a support device for a stone cutter, which is suitable for various types of stone cutters on the market.

[0046] Reference Figures 3 to 10 The existing stone cutting machine includes a cutting device, which can be lifted up and down, and even can be moved longitudinally and / or transversely. The longitudinal direction here refers to the left and right direction, and the transverse direction refers to the front and back direction, and vice versa. It is set according to actual conditions; the cutting device includes a lifting frame 901 and a spindle box 902 installed on the lifting frame 901, and the input end of the spindle box 902 is connected to the output shaft of the cutting motor. The transmission structure of the two adopts the conventional transmission structure in the stone cutting machine, wherein the main output shaft 903 of the spindle box 902 is arranged horizontally or longitudinally, and the tail end of the main output shaft 901 is equipped with a cutting knife group in a conventional manner, and the tail end of the main output shaft 903 refers to the end away from the spindle box 902.

[0047] A bearing seat 904 with a bearing is installed at the tail end of the main output shaft 903 , that is, the main output shaft 903 is installed in the bearing, so that the main output shaft 903 rotates, driving the bearing to rotate relative to the bearing seat 904 .

[0048] It should be noted that, in this embodiment, the lifting frame 901 includes an upper fixing plate, a lower fixing plate, and a guide column connected between the upper fixing plate and the lower fixing plate in a conventional manner. Accordingly, the conventional stone cutter further includes a mainframe middle seat 905, which is located between the upper fixing plate and the lower fixing plate, and the guide column is installed on the mainframe middle seat 905 in a manner of moving up and down. The installation structure of the guide column installed on the mainframe middle seat 905 is a conventional installation structure of the existing stone cutter, so it will not be described in detail; wherein, the mainframe middle seat 905 is slidably installed on the frame of the stone cutter, such as a crossbeam, a longitudinal arm, etc., for driving the lifting frame 901 to move through the mainframe middle seat 905. In addition, the structure of the lifting frame 901 varies according to the actual model of the existing stone cutter, and is not limited to the above structure.

[0049] After the support device is installed on the stone cutter, it has a fixed state and an active state. When the support device is fixed to the bearing seat 904, the support device is in the fixed state; when the support device is removed from the bearing seat 904, the support device is in the active state. For the convenience of description, the fixed state is taken as an example for description.

[0050] The supporting device includes a first support frame 10 and a second support frame 20. The first support frame 10 is fixed on the lifting frame body 901. The second support frame 20 is vertically arranged. The upper end of the second support frame 20 is rotatably connected to the first support frame 10, and the lower end of the second support frame 20 is detachably connected to the bearing seat 904.

[0051] Specifically, the first support frame 10 includes a mating plate 11 and a connecting plate 12. The mating plate 11 is vertically arranged and located on one side of the lifting frame body 901. The mating plate 11 is fixed on the lifting frame body 901. The side of the mating plate 11 close to the lifting frame body 901 is the mating side of the mating plate 11, and the side away from the lifting frame body 901 is the non-mating side of the mating plate 11. The connecting plate 12 is horizontally arranged. The connecting plate 12 is located on the non-mating side of the mating plate 11. One end of the connecting plate 12 is the first end, and the other end of the connecting plate 12 is the second end. The first end of the connecting plate 12 is fixed to the lower end of the mating plate 11, and the upper end of the second support frame 20 is rotatably connected to the second end of the connecting plate 12. Preferably, the mating plate 11 and the connecting plate 12 are integrally formed.

[0052] Further, the rotation structure between the second end of the connecting plate 12 and the upper end of the second support frame 20 is as follows: a rotation group is provided at the second end of the connecting plate 12. The rotation group includes a mounting seat 14, a mounting lug 21, and a rotating member 15. The mounting seat 14 is fixed to the second end. The mounting lug 21 is fixed to the upper end of the second support frame 20. The mounting lug 21 and the mounting seat 14 are respectively provided with corresponding mounting holes. The rotating member 15 is inserted into the two corresponding mounting holes. The rotating member 15 is a rotating shaft or a rotating pin, etc. In this way, the second support frame 20 can rotate upward or downward relative to the first support frame 10 with the rotating member 15 as the base point under the action of an external force. Preferably, there are multiple rotation groups, and the rotating members 15 are coaxially arranged. Specifically, the rotating members 15 are all horizontally arranged. More preferably, mounting lugs 21 are correspondingly arranged on both sides of each mounting seat 14. In this embodiment, the structures of all the rotation groups are the same. Taking one of the rotation groups as an example for description, the mounting seat 14 is provided with a first mounting hole, and the two corresponding mounting lugs 21 are respectively provided with second mounting holes corresponding to the first mounting hole on the mounting seat 14. The first mounting hole and the two second mounting holes are inserted with the same rotating member 15.

[0053] Further, when the cutting disc group needs to be replaced, the second support frame 20 and the bearing seat 904 need to be separated. At this time, the second support frame 20 can be pushed upward manually or mechanically to move the second support frame 20 upward. In this embodiment, a mechanical method is adopted. Specifically, the mechanical method is as follows: The support device further includes a driving device 30 for driving the second support frame 20 to rotate around the axis of the rotating member 15. The driving device 30 is a cylinder device, a hydraulic device or an electric rod device. The housing of the driving device 30 is rotatably installed on the upper side of the connecting plate 12, and the output end of the driving device 30 is rotatably installed on the second support frame 20. In this embodiment, the driving device 30 is taken as an example of a cylinder device for illustration. Specifically, a first rotating shaft parallel to the axis of the rotating member 15 is fixed to the cylinder block of the cylinder. A first lug is fixed on the upper side surface of the connecting plate 12, and the first rotating shaft is rotatably connected to the first lug; the axis of the piston rod of the cylinder is perpendicularly arranged to the axis of the rotating member 15. A second lug is fixed to the upper end of the second support frame 20, and a second rotating shaft parallel to the axis of the rotating member 15 is rotatably connected to the second lug. The piston rod of the cylinder is fixed to the second rotating shaft. It should be noted that the rotational connections between the first rotating shaft and the first lug and between the second rotating shaft and the second lug are both conventional rotational connection structures and will not be elaborated here.

[0054] It should be noted that the driving device 30 can also be installed on the lower side of the connecting plate 12. Specifically, the housing of the driving device 30 is rotatably installed on the lower side of the connecting plate 12, and the output end of the driving device 30 is rotatably installed on the second support frame 20.

[0055] By providing the driving device 30, when the cutting disc group of the stone cutting machine is replaced, the second support frame 20 can be driven by the driving device 30 to rotate upward around the axis of the rotating member 15, which is convenient and simple for replacement; after the replacement is completed, the second support frame 20 can be driven by the driving device 30 again to rotate downward around the axis of the rotating member 15 to facilitate the installation of the second support frame 20 on the bearing seat 904.

[0056] Further, to further ensure that the main spindle box 902 does not vibrate during the operation of the stone cutting machine, corresponding fixing holes are respectively formed in the upper end and the second end of the second support frame 20, and the same fixing member (not shown in the figure) is connected in the two corresponding fixing holes. Each fixing member is a conventional component such as a bolt; during installation, each bolt is respectively inserted into the corresponding two opposed fixing holes, and then a nut is screwed on for fixation to realize the fixation of the second support frame 20 and the first support frame 10; during disassembly, each bolt is respectively unscrewed from the corresponding nut, and then can be taken out from the corresponding fixing hole. Among them, during the operation of the stone cutting machine, each fixing member is respectively installed in the corresponding fixing hole to fix the second support frame 20; when the cutting disc group is replaced, each fixing member is respectively unscrewed from the corresponding fixing hole to facilitate the rotation of the second support frame 20.

[0057] Further, the supporting device is further provided with a supporting plate 40, and the supporting plate 40 is fixed on the lifting frame body 901. In this embodiment, the upper and lower parts of the supporting plate 40 are respectively mounted on the upper fixing plate and the lower fixing plate of the lifting frame body 901. In other words, the supporting plate 40 is vertically arranged, and the upper part of the supporting plate 40 is fixedly mounted on the upper fixing plate of the lifting frame body 901, and the lower part of the supporting plate 40 is fixedly mounted on the lower fixing plate of the lifting frame body 901. The mating plate 11 of the first support frame 10 is fixed on the supporting plate 40, and the mating plate 11 is indirectly fixed on the lifting frame body 901 by being fixed on the supporting plate 40, so that the first support frame 10 is stably mounted on the lifting frame body 901.

[0058] Wherein, the installation structure between the lifting frame body 901 and the supporting plate 40 is as follows: the assembly structure of the upper part of the supporting plate 40 and the upper fixing plate of the lifting frame body 901 is the same as the assembly structure of the lower part of the supporting plate 40 and the lower fixing plate of the lifting frame body 901. Taking the assembly structure of the upper part of the supporting plate 40 and the upper fixing plate of the lifting frame body 901 as an example for illustration, specifically, the upper part of the supporting plate 40 and the upper fixing plate of the lifting frame body 901 are respectively provided with a plurality of corresponding assembly holes 41. Among them, the assembly holes 41 on the upper fixing plate of the lifting frame body 901 are evenly spaced, and the two corresponding assembly holes 41 are connected by the same fitting (not shown in the figure). Each fitting is a conventional fitting such as a bolt or a rivet, etc. In this embodiment, the fitting is taken as a bolt for illustration. The bolt is adapted to the corresponding two assembly holes, so that the bolt is inserted into the corresponding two assembly holes in sequence, and then a nut is screwed on for fixation, so as to realize the assembly of the supporting plate 40 and the upper fixing plate. Preferably, each assembly hole 41 on the supporting plate 40 is an adjustment waist hole, and each adjustment waist hole is vertically arranged, so that the height of the supporting plate 40 can be adjusted when the corresponding parts of the supporting plate 40 are respectively mounted on the upper fixing plate and the lower fixing plate, so as to ensure that the connecting parts of the second support frame 20 and the bearing seat 904 are mutually attached, making the installation of the two more compact. The installation structure between the mating plate 11 of the first support frame 10 and the supporting plate 40 is as follows: the mating plate 11 of the first support frame 10 and the supporting plate 40 are respectively provided with a plurality of corresponding second assembly holes 43, and each two corresponding second assembly holes 43 are provided with a second fitting (not shown in the figure).

[0059] Preferably, in order to increase the overall stiffness of the first support frame 10 and reduce the deformation of the first support frame 10 under load, a stiffening plate 13 is installed on the first support frame 10. The stiffening plate 13 has a first side and a second side. The first side is fixed to the mating plate 11, and the second side is fixed to the connecting plate 12. In this embodiment, the outer contour of the stiffening plate 13 is triangular. The stiffening plate 13 includes a first side, a second side, and a third side. The first side, the second side, and the third side together enclose a triangle. The first side is fixed to the mating plate 11, and the second side is fixed to the connecting plate 12. It should be noted that the stiffening plate 13 can also be a stiffening plate with a quadrilateral or pentagonal outer contour. Further, there are multiple stiffening plates, and the stiffening plates are arranged at linear intervals. A diaphragm is connected between adjacent two stiffening plates. Setting a diaphragm between adjacent two stiffening plates can increase the overall stability of the stiffening plates, prevent local buckling or distortion of the stiffening plates when stressed. At the same time, setting a diaphragm also helps to more evenly distribute the load between the stiffening plates and reduce local stress concentration.

[0060] Preferably, a first stiffening rib 42 is fixed to the support plate 40; and / or a second stiffening rib 22 is fixed to the second support frame 20. In this embodiment, a first stiffening rib 42 is fixed to the support plate 40, and the first stiffening rib 42 is arranged vertically; a second stiffening rib 22 is fixed to the second support frame 20, and the second stiffening rib 22 is arranged perpendicular to the rotating member 15.

[0061] Further, the installation structure between the second support frame 20 and the main output shaft 903 of the spindle box 902 is as follows: at least one first locking hole 906 is formed in the bearing seat 904, and second locking holes 23 are formed in the second support frame 20 corresponding to the positions of the first locking holes 906. The same locking member (not shown in the figure) is connected in the corresponding first locking hole 906 and second locking hole 23. In this embodiment, taking the case where there are two first locking holes 906 as an example, there is one first locking hole 906 on each side of the bearing. A horizontally arranged reinforcing plate is integrally connected to the lower end of the second support frame 20, and second locking holes 23 are respectively formed in the reinforcing plate corresponding to the two first locking holes 906, that is, the two first locking holes 906 and the two second locking holes 23 correspond to each other one by one. Locking members are sequentially inserted into the corresponding first locking holes 906 and second locking holes 23, and each locking member is a conventional installation fitting such as a bolt. In this way, during installation, each locking member is sequentially inserted into the corresponding first locking hole 906 and second locking hole 23, and then a nut is screwed on, so that the second support frame 20 can be installed on the bearing seat 904 and the main output shaft 903 can rotate relative to the second support frame 20; during disassembly, each locking member is unscrewed.

[0062] In the present utility model, when it is necessary to repair the main output shaft 903 or replace the cutting blade group, first, the locking parts between the second support frame 20 and the bearing seat 904 are disassembled, and then the respective fixing parts are separated from the corresponding fixing holes 61, so that the support device can be changed from the fixed state to the movable state, and then the lifting ladder is lowered; then the piston rod of the cylinder is extended, so that the second support frame 20 rotates upward around the axis of the rotating part 15, and further the second support frame 20 and the main output shaft 903 are separated.

[0063] After the cutting blade group is replaced or the main output shaft 903 is repaired, when the stone cutting machine needs to work normally, the piston rod of the cylinder retracts, so that the second support frame 20 rotates downward around the axis of the rotating part 15, and further the second support frame 20 is installed together with the bearing seat 904. Then, the respective locking parts can be sequentially inserted into the corresponding first locking holes 906 and the corresponding second locking holes 23 and the nuts are screwed on. Finally, the respective fixing parts are respectively installed in the corresponding fixing holes, and then the stone cutting machine can work.

[0064] Adopting the above technical solution, by rotatably connecting the upper end of the second support frame 20 with the first support frame 10, detachably connecting the lower end of the second support frame 20 to the bearing seat 904, respectively providing corresponding fixing holes at the upper end and the second end of the second support frame 20, connecting the same fixing part in the two corresponding fixing holes, when repairing the main output shaft 903 or replacing the cutting blade group, compared with a support device for a stone cutting machine disclosed in the authorized publication number CN218139046U, the position of the fixing part is relatively low, and there are no obstacles such as a main spindle box below the fixing part, which is convenient for the operator to disassemble. During the disassembly process, without climbing, the separation and installation of the respective fixing parts from the corresponding fixing holes 61 can be completed, and the assembly and disassembly process is relatively convenient.

[0065] In the present utility model, the support device is applicable to stone cutting machines of various models. The following is an explanation of the assembly in a conventional model. This explanation is not limited to the following models and can also be for other models.

[0066] As Figures 3 to 5 shown, the above support device is installed on a single-beam column type stone cutting machine, and the single-beam column type stone cutting machine can be a conventional single-beam four-column multi-blade stone cutting machine.

[0067] As Figures 6 to 7 shown, the above support device is installed in a gantry type stone cutting machine, and the gantry type stone cutting machine can be a conventional gantry column type stone cutting machine. For example, the support device of the present utility model can be installed on the lifting frame body described in the Chinese patent "A Gantry Column Type Guided Multi-Blade Stone Cutting Machine".

[0068] Embodiment 2

[0069] AsFigures 8 to 9 As shown, the above-mentioned supporting device is installed in a double-beam type stone cutting machine, which can be a conventional double-beam multi-blade stone cutting machine. For example, the supporting device of the present invention can be installed on the lifting frame described in the Chinese patent "A Bridge-Type Double-Beam Guided Multi-Blade Stone Cutting Machine" according to the structure described in Embodiment 1.

[0070] The present invention has been described in detail above with reference to the accompanying drawings. However, the implementation modes of the present invention are not limited to the above-mentioned implementation modes. Those skilled in the art can make various deformations to the present invention according to the prior art, and these all belong to the protection scope of the present invention.

Claims

1. A support device for a stone cutting machine, the stone cutting machine comprising a lifting frame body and a main spindle box mounted on the lifting frame body, a bearing seat with bearings being mounted on the main output shaft of the main spindle box, characterized in that: The support device includes a first support frame and a second support frame; the first support frame includes a mating plate vertically arranged and fixed on the lifting frame body and a connecting plate horizontally arranged, one end of the connecting plate is the first end, and the other end of the connecting plate is the second end; the first end is fixed to the lower end of the mating plate, the upper end of the second support frame is rotatably connected to the second end, and the lower end of the second support frame is detachably connected to the bearing seat; corresponding fixing holes are respectively formed in the upper end of the second support frame and the second end, and the same fixing member is connected in the two corresponding fixing holes.

2. The support device for a stone cutting machine according to claim 1, wherein: A rotating group is arranged on the second end, and the rotating group includes a mounting seat, a mounting lug and a rotating member; the mounting seat is fixed to the second end; the mounting lug is fixed to the upper end of the second support frame, corresponding mounting holes are respectively formed in the mounting lug and the mounting seat, and the rotating member is inserted into the two corresponding mounting holes.

3. The supporting device for a stone cutting machine according to claim 2, characterized in that: There are multiple rotating groups, mounting lugs are correspondingly arranged on both sides of each mounting seat, and the rotating members are coaxially arranged.

4. The support device for a stone cutting machine according to claim 2, characterized in that: It further includes a driving device for driving the second support frame to rotate around the axis of the rotating member, the housing of the driving device is rotatably mounted on the connecting plate, and the output end of the driving device is rotatably mounted on the second support frame.

5. The support device for a stone cutting machine according to claim 4, characterized in that: A support plate is further provided, the support plate is fixed on the lifting frame body, and the mating plate is indirectly fixed on the lifting frame body by being fixed on the support plate.

6. The support device for a stone cutting machine according to claim 5, characterized in that: A plurality of corresponding assembly holes are respectively formed in the upper part of the support plate and the lifting frame body; a plurality of corresponding assembly holes are respectively formed in the lower part of the support plate and the lifting frame body, and the same fitting is connected in the two corresponding assembly holes.

7. The supporting device for a stone cutting machine according to claim 5, wherein: Stiffening plates are mounted on the first support frame, the stiffening plates have a first side edge and a second side edge, the first side edge is fixed to the mating plate, and the second side edge is fixed to the connecting plate.

8. The support device for a stone cutting machine according to claim 7, characterized in that: There are multiple stiffening plates, and the stiffening plates are linearly arranged at intervals, and a cross partition is connected between two adjacent stiffening plates.

9. The support device for a stone cutting machine according to claim 5, characterized in that: The support plate is fixed with a first stiffening rib; and / or the second support frame is fixed with a second stiffening rib.

10. A support device for a stone cutting machine according to claim 1, characterized in that: At least one first locking hole is formed in the bearing seat, second locking holes are formed in the second support frame corresponding to the positions of the first locking holes, and the same locking member is connected in the corresponding first locking hole and the second locking hole.

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