Jacking rotating platform and cutting equipment

Abstract

The utility model discloses a jacking rotating platform and cutting equipment, and belongs to the technical field of material cutting equipment, the jacking rotating platform comprises a base, a lifting seat, a first driving module, a bearing table and a second driving module; the lifting seat is arranged on the base in a sliding mode, and the first driving module comprises a chain transmission assembly installed on the lifting seat, a first driver installed on the lifting seat, a first connecting rod and a second connecting rod. The bearing table is rotationally mounted on the lifting seat; the rotating axis of the bearing table is parallel to the sliding direction of the lifting seat; the second driving module comprises a second driver which is mounted on the lifting seat and is in transmission connection with the bearing table; the first driver is in transmission connection with one end of the first connecting rod through the chain transmission assembly, one end of the first connecting rod is rotationally connected with one end of the second connecting rod, and the other end of the second connecting rod is rotationally installed on the base. The jacking rotating platform is small in occupied space, and the bearing capacity is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of material cutting equipment, especially a jacking rotary platform and cutting equipment. BACKGROUND

[0002] In the technical field of material cutting equipment such as wood cutting equipment, the jacking rotary platform as the key bearing device of the workpiece machining reference surface directly affects the machining precision and operation efficiency. The current industry generally uses a cylinder driving system or a screw driving system to drive the bearing table to rise or fall relative to the base. The cylinder driving system or the screw driving system is installed on the base, and the output end of the cylinder driving system or the screw driving system is connected to the bearing table. The cylinder driving system or the screw driving system structure occupies a large space, resulting in the problem of the jacking rotary platform occupying a large space. In addition, as for the cylinder driving system, its typical structure is composed of a cylinder, a linear guide rail and a slider. The piston rod of the cylinder is rigidly connected to the bearing table, and the vertical stroke is realized by compressing air to push the piston. Although this scheme has the advantage of fast power response, it exposes significant structural defects in actual application. First, due to the limitation of the cylinder barrel diameter and the working pressure, the single-cylinder theoretical bearing capacity is low. Some jacking rotary platforms use multi-cylinder parallel structure and multiple guide rails to improve the bearing capacity, but this structure further increases the space occupation and requires a larger base to install the pneumatic driving system. Therefore, the existing jacking rotary platform has the problems of large space occupation and poor bearing capacity. SUMMARY

[0003] The purpose of the embodiment of the utility model is to provide a jacking rotary platform and cutting equipment. The jacking rotary platform not only occupies a small space, but also greatly improves the bearing capacity.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] On the one hand, a jacking rotary platform is provided, which comprises:

[0006] a base;

[0007] a lifting seat slidingly arranged on the base;

[0008] a first driving module comprising a chain transmission assembly mounted on the lifting seat, a first driver mounted on the lifting seat, and first and second connecting rods;

[0009] a bearing table rotatably mounted on the lifting seat; the rotation axis of the bearing table is parallel to the sliding direction of the lifting seat;

[0010] and

[0011] A second driving module comprising a second driver mounted on the lifting seat and in transmission connection with the bearing table;

[0012] The first driver is in transmission connection with one end of the first connecting rod through the chain transmission assembly, one end of the first connecting rod is in rotational connection with one end of the second connecting rod, and the other end of the second connecting rod is rotatably mounted on the base.

[0013] Optionally, the base is provided with a guide seat provided with a guide groove extending along the sliding direction of the lifting seat, and a guide wheel is rotatably mounted on the lifting seat and mounted in the guide groove.

[0014] Optionally, the chain transmission assembly comprises a first sprocket rotatably mounted on the lifting seat, a second sprocket rotatably mounted on the lifting seat, and a transmission chain sleeved on the first sprocket and the second sprocket; the first driver is in transmission connection with the first sprocket, and the second sprocket is in transmission connection with the first connecting rod.

[0015] Optionally, the chain transmission assembly further comprises a transmission shaft rotatably mounted on the lifting seat; the second sprocket is mounted on the transmission shaft, and the transmission shaft is in transmission connection with the first connecting rod.

[0016] Optionally, the first driving module further comprises a reducer having a first output shaft and a second output shaft; the chain transmission assembly has two, the guide seat is located between the transmission shafts of the two chain transmission assemblies, the first driver is in transmission connection with the reducer, the first output shaft is in transmission connection with the first sprocket of one of the chain transmission assemblies, and the second output shaft is in transmission connection with the first sprocket of the other chain transmission assembly.

[0017] The transmission shafts of each chain transmission assembly are in transmission connection with the first connecting rods at both ends, and each first connecting rod is in rotational connection with the second connecting rod rotatably mounted on the base.

[0018] Optionally, the bearing table is located above the lifting seat, and a first buffer is arranged on the base and located on the path of upward movement of the lifting seat.

[0019] Optionally, the second driving module further comprises a gear rotatably mounted on the lifting seat and a slewing bearing rotatably mounted on the lifting seat; the slewing bearing ring is provided with external teeth in meshing connection with the gear, and the second driver is in transmission connection with the gear.

[0020] Optionally, the bearing table is provided with a first abutting piece and a second abutting piece, the lifting seat is provided with a second buffer piece and a third buffer piece, the second buffer piece is located on a moving path of the first abutting piece rotating in a first rotating direction, the third buffer piece is located on a moving path of the second abutting piece rotating in a second rotating direction, and the first rotating direction and the second rotating direction are opposite.

[0021] Optionally, the bearing table comprises a connecting plate in transmission connection with the second driver and a plurality of connecting pipes; the bearing table is in a frame shape, the plurality of connecting pipes are connected with each other, and at least part of the connecting pipes are connected with the connecting plate.

[0022] In another aspect, a cutting device is provided, comprising the jacking rotary platform.

[0023] The jacking rotary platform has the advantages that: the lifting seat and the bearing table of the jacking rotary platform are lifted through the first driving module, the bearing table is installed on the lifting seat through the second driving module to realize rotation of the bearing table, the first connecting rod and the second connecting rod of the first driving module are hinged to each other, the lifting seat is lifted through cooperation of the chain transmission assembly, the first connecting rod and the second connecting rod, rotation transmission of the first connecting rod and the second connecting rod is simpler in structure and smaller in occupied space than transmission modes in the prior art, and thus the jacking rotary platform occupies less space.

[0024] The cutting device has the advantages that: the jacking rotary platform is adopted, the bearing capacity is improved, and the cutting efficiency and the cutting quality of the workpiece to be cut are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The jacking rotary platform will be further described in detail below with reference to the drawings and embodiments.

[0026] Figure 1 FIG. 1 is a structural schematic view of a jacking rotary platform;

[0027] Figure 2 FIG. 2 is an exploded view of the jacking rotary platform;

[0028] Figure 3 FIG. 3 is a structural schematic view of a base, a lifting seat, a first driving module and a second driving module from a first perspective;

[0029] Figure 4 FIG. 4 is a structural schematic view of the base, the lifting seat, the first driving module and the second driving module from a second perspective;

[0030] Figure 5Figure 3 is a third perspective view of the base, the lifting seat, the first driving module and the second driving module.

[0031] Explanation of reference signs, in the drawings:

[0032] 11, base; 12, lifting seat; 13, first driving module; 14, bearing table; 15, second driving module; 16, guide seat; 17, guide wheel; 18, first buffer; 19, first abutting piece; 20, second abutting piece; 21, second buffer; 22, third buffer; 23, bearing seat; 24, flange seat; 25, guide shaft;

[0033] 131, chain transmission assembly; 132, first driver; 133, first connecting rod; 134, second connecting rod; 135, speed reducer; 136, first sprocket; 137, second sprocket; 138, transmission chain; 139, transmission shaft;

[0034] 141, connecting plate; 142, connecting pipe;

[0035] 151, second driver; 152, gear; 153, slewing bearing; 154, external teeth;

[0036] 161, guide groove. DETAILED DESCRIPTION

[0037] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the embodiments of the utility model will be described in further detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0038] In the description of the utility model, unless explicitly defined and limited, the terms "connected", "fixed", "connected", "communicated", "abutted", "clamped" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected or integrated; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0039] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "upper surface of" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature "under", "below" and "under surface of" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature.

[0040] In the description herein, it is to be understood that the orientation or positional relationship of the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", are only used to distinguish in description, and have no special meaning.

[0041] In the description of the present specification, the description referring to the terms "an embodiment", "an example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0042] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment only contains one independent technical solution, and the description of the specification is only for clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0043] Unless otherwise specified or defined, the term "and / or" used in the utility model includes any and all combinations of one or more related listed items.

[0044] For the convenience of description, unless otherwise specified, the upward and downward directions mentioned below are consistent with the upward and downward directions of the device itself. Figure 2 The upward and downward directions of the device itself are consistent.

[0045] As Figures 1 to 5As shown, the embodiment provides a lifting and rotating platform, which comprises a base 11, a lifting seat 12, a first driving module 13, a bearing table 14, and a second driving module 15. The lifting seat 12 is arranged in the base 11 in a sliding manner. The lifting seat 12 can be arranged in the base 11 in a sliding manner through a guide rail and a sliding block or a sliding block and a sliding groove. The base 11 is in a square shape. The bottom of the base 11 is provided with a foot plate. The lifting seat 12 is located in the region enclosed by the base 11.

[0046] The first driving module 13 is used for driving the lifting seat 12 to slide up and down relative to the base 11. The first driving module 13 comprises a chain transmission assembly 131 installed on the lifting seat 12, a first driver 132 installed on the lifting seat 12, and a first connecting rod 133 and a second connecting rod 134. The first connecting rod 133 and the second connecting rod 134 are both plate bodies in a rectangular shape. The first driver 132 is an electric motor.

[0047] The bearing table 14 is rotatably installed on the lifting seat 12. The rotation axis of the bearing table 14 is parallel to the sliding direction of the lifting seat 12. That is, the sliding direction of the lifting seat 12 is a vertical direction. The rotation axis of the bearing table 14 is vertically arranged. The bearing table 14 is rotated relative to the base 11 and the lifting seat 12 under the driving of the second driving module 15. The bearing table 14 is used for supporting a workpiece to be cut. After the workpiece to be cut is locked by a clamp on the bearing table 14, the position and posture of the workpiece to be cut are adjusted through the lifting and lowering of the lifting seat 12 and the rotation of the bearing table 14. The cutting saw moves to the workpiece to be cut to perform cutting. During the cutting, the position and posture of the workpiece to be cut can also be adjusted through the lifting and lowering of the lifting seat 12 and the rotation of the bearing table 14.

[0048] The second driving module 15 is used for driving the bearing table 14 to rotate relative to the lifting seat 12 along the vertically arranged axis. The second driving module 15 comprises a second driver 151 installed on the lifting seat 12 and in transmission connection with the bearing table 14.

[0049] The first driver 132 is in transmission connection with one end of the first connecting rod 133 through the chain transmission assembly 131, one end of the first connecting rod 133 is in rotary connection with one end of the second connecting rod 134, and the other end of the second connecting rod 134 is rotatably installed on the base 11. Specifically, the lifting seat 12 is provided with a flange seat 24 with a bearing, and the base 11 is provided with a bearing seat 23 with an automatic bearing. One end of the first connecting rod 133 is rotatably installed on the flange seat 24 through a first shaft body, the other end of the first connecting rod 133 is in rotary connection with one end of the second connecting rod 134 through a second shaft body, and the other end of the second connecting rod 134 is rotatably installed on the bearing seat 23 through a third shaft body. The first shaft body and the second shaft body are parallel and spaced apart, and the third shaft body and the second shaft body are parallel and spaced apart. When the jacking rotary platform is working, the first driver 132 can drive the chain transmission assembly 131 to move, the output end of the chain transmission assembly 131 is in transmission connection with the first connecting rod 133, so that the first connecting rod 133 rotates relative to the lifting seat 12, and the first connecting rod 133 drives the second connecting rod 134 to rotate when rotating, so that the lifting seat 12 slides up and down relative to the base 11, thereby realizing the up and down movement of the bearing table 14. When it is necessary to rotate the workpiece to be cut, the second driver 151 can drive the bearing table 14 to rotate relative to the lifting seat 12.

[0050] In this way, the first driving module 13 of the present application realizes the lifting of the lifting seat 12 through the cooperation of the chain transmission assembly 131, the first connecting rod 133 and the second connecting rod 134. The chain transmission assembly 131 and the first driver 132 of the first driving module 13 are installed on the lifting seat 12, so that the base 11 does not need to have too large a volume to install the chain transmission assembly 131, the first driver 132 and other components. The first connecting rod 133 and the second connecting rod 134 are connected between the lifting seat 12 and the base 11, and compared with the traditional cylinder driving system and screw driving system, the first connecting rod 133 and the second connecting rod 134 occupy less space, so that the jacking rotary platform occupies less space. In addition, compared with the cylinder driving system, the chain transmission assembly 131 has greatly improved carrying capacity.

[0051] In one embodiment, the base 11 is provided with a guide seat 16, the guide seat 16 is provided with a guide groove 161 extending along the sliding direction of the lifting seat 12, and the guide groove 161 extends from top to bottom. The lifting seat 12 is rotatably installed with a guide wheel 17, and the lifting seat 12 is installed on a guide shaft 25, and the guide wheel 17 is rotatably installed on the lifting seat 12 through the guide shaft 25. The guide wheel 17 is installed in the guide groove 161, and when the lifting seat 12 moves up and down relative to the base 11, the guide wheel 17 rolls up and down along the guide groove 161, reducing friction.

[0052] It can be understood that the guide rail and the sliding block, the guide rod and the sliding block, the guide groove and the sliding block and the like can be used to limit the lifting seat 12 to slide up and down relative to the base 11, so as to avoid the horizontal swing of the lifting seat 12.

[0053] In one embodiment, the chain transmission assembly 131 comprises a first sprocket 136 rotatably mounted on the lifting seat 12, a second sprocket 137 rotatably mounted on the lifting seat 12, and a transmission chain 138 sleeved on the first sprocket 136 and the second sprocket 137. The first drive 132 is in transmission connection with the first sprocket 136, the second sprocket 137 is in transmission connection with the first connecting rod 133, the transmission chain 138 is arranged in an inclined manner from top to bottom, the first drive 132 is mounted on the lifting seat 12 and close to the top of the lifting seat 12, and the second sprocket 137 is rotatably mounted on the lifting seat 12 and close to the bottom of the lifting seat 12.

[0054] Optionally, the chain transmission assembly 131 further comprises a transmission shaft 139 rotatably mounted on the lifting seat 12. The second sprocket 137 is mounted on the transmission shaft 139, the transmission shaft 139 is in transmission connection with the first connecting rod 133, the second sprocket 137 rotates synchronously with the transmission shaft 139, the transmission shaft 139 is driven to rotate through the second sprocket 137, and finally the first connecting rod 133 is driven to rotate synchronously through the transmission shaft 139.

[0055] Further, the first drive module 13 further comprises a reducer 135 having a first output shaft and a second output shaft. In addition, the first drive 132 can be a reduction motor having a first output shaft and a second output shaft, and the first output shaft and the second output shaft are coaxial and mutually divergent. The chain transmission assembly 131 and the guide seat 16 are both two, the two guide seats 16 are located between the transmission shafts 139 of the two chain transmission assemblies 131, the guide shaft 25 is located between the transmission shafts 139 of the two chain transmission assemblies 131, both ends of the guide shaft 25 are provided with guide wheels 17, and the two guide wheels 17 are respectively mounted in the guide grooves 161 of the two guide seats 16. The first drive 132 is in transmission connection with the reducer 135, the first output shaft is in transmission connection with the first sprocket 136 of one of the chain transmission assemblies 131, and the second output shaft is in transmission connection with the first sprocket 136 of the other chain transmission assembly 131.

[0056] The transmission shaft 139 of each chain transmission assembly 131 is in transmission connection with the first connecting rod 133 at both ends, and each first connecting rod 133 is rotatably connected with the second connecting rod 134 rotatably mounted on the base 11. In this way, through the cooperation of the two chain transmission assemblies 131, the four first connecting rods 133, the four second connecting rods 134 and the two guide seats 16, the stability of the lifting seat 12 when moving up and down is improved, the load-carrying capacity of the jacking rotary platform is further improved, the shaking of the cutting workpiece during cutting is avoided due to insufficient load-carrying capacity, and the cutting efficiency and quality of the cutting workpiece are ensured.

[0057] In other embodiments, two same type reducers can be used in parallel to achieve synchronous output and drive two chain transmission assemblies 131 simultaneously.

[0058] In one embodiment, the bearing table 14 is arranged above the lifting seat 12, and the base 11 is provided with a first buffer 18 located in the upward movement path of the lifting seat 12. The first buffer 18 is a silica gel pad, and the first buffer 18 is installed on the base 11 through a first fixing seat. When the lifting seat 12 moves upward to the limit position, the first buffer 18 is used for buffering. The first buffer 18 has two and is arranged at intervals.

[0059] Optionally, the second driving module 15 further comprises a gear 152 rotatably installed on the lifting seat 12 and a slewing bearing 153 rotatably installed on the lifting seat 12. The slewing bearing 153 is annularly provided with an outer tooth 154 engaged with the gear 152, and the second driver 151 is in transmission connection with the gear 152. The second driver 151 is a motor, the second driver 151 drives the gear 152 to rotate, the gear 152 drives the slewing bearing 153 to rotate, and the bearing table 14 is installed on the slewing bearing 153 through a threaded fastener such as a bolt. The conventional slewing bearing adopts worm gear transmission, which has problems such as large return gap and low positioning accuracy. The embodiment drives the bearing table 14 to rotate through the transmission mode of the gear 152 and the slewing bearing 153, so that the second driving module 15 has the advantages of strong bearing capacity, accurate transmission, high transmission efficiency, compact structure, reliable work, long service life and the like.

[0060] In one embodiment, the bearing table 14 is provided with a first abutting piece 19 and a second abutting piece 20, and the first abutting piece 19 and the second abutting piece 20 are both sheet metal parts and are arranged at intervals along the circumferential direction of the rotation axis of the bearing table 14. The lifting seat 12 is provided with a second buffer 21 and a third buffer 22, the second buffer 21 is located in the movement path of the first abutting piece 19 rotating in the first rotation direction, and the third buffer 22 is located in the movement path of the second abutting piece 20 rotating in the second rotation direction, and the first rotation direction and the second rotation direction are opposite. The rotation angle of the bearing table 14 is limited by the second buffer 21 and the third buffer 22, and the rotation limiting of the bearing table 14 is realized.

[0061] Further, the bearing table 14 comprises a connecting plate 141 and a plurality of connecting pipes 142 in transmission connection with the second driver 151. The bearing table 14 is in a frame shape, the connecting pipes 142 are square pipes, the plurality of connecting pipes 142 are connected with each other through welding or the like, and the plurality of connecting pipes 142 jointly form a square frame. At least part of the connecting pipes 142 are connected with the connecting plate 141, and the connecting plate 141 is installed on the central region of the square frame through welding, threaded fasteners or the like. The connecting plate 141 is installed on the slewing bearing 153 of the second driving module 15 through threaded fasteners.

[0062] The embodiment also provides a cutting device comprising the jacking rotary platform of any of the above embodiments. Specifically, the cutting device further comprises a cutting saw, which is installed on a mechanical arm or the like mechanism and cuts the wood board on the bearing table 14 by driving the cutting saw through the mechanical arm.

[0063] The technical principles of the utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the utility model and cannot be interpreted as limiting the protection scope of the utility model in any way. Based on the explanations herein, other specific embodiments of the utility model can be conceived by those skilled in the art without creative labor, and these embodiments will all fall within the protection scope of the utility model.

Claims

1. A lifting and rotating platform, characterized in that, include: Base (11); The lifting seat (12) is slidably mounted on the base (11); The first drive module (13) includes a chain drive assembly (131) installed on the lifting seat (12), a first driver (132) installed on the lifting seat (12), and a first link (133) and a second link (134); A support platform (14) is rotatably mounted on the lifting seat (12); the rotation axis of the support platform (14) is parallel to the sliding direction of the lifting seat (12); as well as The second drive module (15) includes a second driver (151) installed on the lifting seat (12) and connected to the support platform (14) in a transmission manner; The first driver (132) is connected to one end of the first connecting rod (133) via the chain drive assembly (131). One end of the first connecting rod (133) is rotatably connected to one end of the second connecting rod (134). The other end of the second connecting rod (134) is rotatably mounted on the base (11).

2. The lifting and rotating platform according to claim 1, characterized in that, The base (11) is provided with a guide seat (16), the guide seat (16) is provided with a guide groove (161) extending along the sliding direction of the lifting seat (12), and a guide wheel (17) is rotatably mounted on the lifting seat (12), the guide wheel (17) being installed in the guide groove (161).

3. The lifting and rotating platform according to claim 2, characterized in that, The chain drive assembly (131) includes a first sprocket (136) rotatably mounted on the lifting seat (12), a second sprocket (137) rotatably mounted on the lifting seat (12), and a transmission chain (138) sleeved on the first sprocket (136) and the second sprocket (137); the first driver (132) is drivenly connected to the first sprocket (136), and the second sprocket (137) is drivenly connected to the first connecting rod (133).

4. The lifting and rotating platform according to claim 3, characterized in that, The chain drive assembly (131) further includes a drive shaft (139) rotatably mounted on the lifting seat (12); the second sprocket (137) is mounted on the drive shaft (139), and the drive shaft (139) is connected to the first connecting rod (133) in a drive connection.

5. The lifting and rotating platform according to claim 4, characterized in that, The first drive module (13) further includes a reducer (135) having a first output shaft and a second output shaft; there are two chain drive assemblies (131), the guide seat (16) is located between the drive shafts (139) of the two chain drive assemblies (131), the first driver (132) is drivenly connected to the reducer (135), the first output shaft is drivenly connected to the first sprocket (136) of one of the chain drive assemblies (131), and the second output shaft is drivenly connected to the first sprocket (136) of the other chain drive assembly (131); Each of the chain drive components (131) has a drive shaft (139) with both ends connected to the first connecting rod (133), and each of the first connecting rods (133) is rotatably connected to a second connecting rod (134) rotatably mounted on the base (11).

6. The lifting and rotating platform according to any one of claims 1 to 4, characterized in that, The support platform (14) is located above the lifting seat (12), and the base (11) is provided with a first buffer (18), which is located on the path of the lifting seat (12) moving upward.

7. The lifting and rotating platform according to any one of claims 1 to 4, characterized in that, The second drive module (15) further includes a gear (152) rotatably mounted on the lifting seat (12) and a slewing bearing (153) rotatably mounted on the lifting seat (12); the slewing bearing (153) is provided with external teeth (154) that mesh with the gear (152), and the second driver (151) is connected to the gear (152) in a transmission connection.

8. The lifting and rotating platform according to any one of claims 1 to 4, characterized in that, The support platform (14) is provided with a first abutting member (19) and a second abutting member (20). The lifting seat (12) is provided with a second buffer member (21) and a third buffer member (22). The second buffer member (21) is located on the moving path of the first abutting member (19) rotating in a first rotation direction. The third buffer member (22) is located on the moving path of the second abutting member (20) rotating in a second rotation direction. The first rotation direction and the second rotation direction are opposite.

9. The lifting and rotating platform according to any one of claims 1 to 4, characterized in that, The support platform (14) includes a connecting plate (141) and a plurality of connecting pipes (142) that are connected to the second driver (151) in a transmission manner; the support platform (14) is frame-shaped, and the plurality of connecting pipes (142) are connected to each other, and at least some of the connecting pipes (142) are connected to the connecting plate (141).

10. A cutting device, characterized in that, Includes the lifting and rotating platform as described in any one of claims 1 to 9.

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