Clamping structure for spinning machine

Abstract

The invention discloses a clamping structure for a spinning machine, and relates to the field of spinning machines. The machining device comprises a shaft frame, the shaft frame comprises a main shaft and a first driving part, a clamp base is installed on the head portion of the main shaft, the clamp base is rotationally connected with the main shaft, the first driving part is fixedly installed in the main shaft and used for driving the clamp base to rotate, and a machining table is fixedly installed on the upper end face of the clamp base. A multi-head shell is fixedly mounted in the center of the machining table. According to the machining table, the clamp base capable of being rotationally adjusted is installed on the shaft frame, and the use angle of the clamp base can be stably controlled through the first driving piece during use, so that after the machining table is fixedly installed on the clamp base, a workpiece can be stably placed and machined; and a plurality of adjustable movable clamping blocks are uniformly mounted on the machining table, so that the movable clamping blocks can be controlled to clamp the workpiece through a second driving part during machining.

Description

Technical Field

[0001] The invention relates to the technical field of spinning machines, in particular to a clamping structure for a spinning machine. Background Art

[0002] At present, automobile wheel hubs are often processed by mold forming or spinning machine pressure forming. When using the spinning machine, large and small grinding wheels are clamped inside and outside the annular workpiece, and the extrusion amplitude is controlled by swinging to achieve the purpose of forming. When in use, the numerical control system device that controls the servo system and the programmable controller that controls the hydraulic transmission system are respectively connected to the industrial PC, so that the spinning machine can realize automatic control processing.

[0003] With respect to the above-mentioned related technologies, the inventors found that most existing spinning machines clamp the workpiece in a double-head or triple-head manner during processing. This makes it easy for the workpiece to be subjected to uneven force during the forming process, resulting in offset deformation, which not only affects the processing accuracy but may even easily cause damage to the workpiece. Summary of the invention

[0004] In order to achieve stable clamping of the workpiece and to avoid uneven force during the forming process, the present application provides a clamping structure for a spinning machine.

[0005] The present invention is achieved in that: A clamping structure for a spinning machine comprises an axis frame, the axis frame comprises a main shaft and a driving member 1, a clamp seat is installed at the head of the main shaft, the clamp seat is rotatably connected to the main shaft, the driving member 1 is fixedly installed in the main shaft, and the driving member 1 is used to drive the clamp seat to rotate, a processing table is fixedly installed on the upper end surface of the clamp seat, a multi-head shell is fixedly installed at the center of the processing table, and a plurality of movable clamps are evenly installed on the processing table along the circumferential direction, a plurality of driving members 2 that drive the movable clamps to move radially along the processing table are installed on the outer side surface of the multi-head shell, and a synchronous drive component that drives the plurality of driving members 2 to rotate synchronously is fixedly installed in the multi-head shell, and an inner diameter measuring component is also installed on the upper end surface of the multi-head shell.

[0006] By adopting the above technical solution, by designing the shaft frame into a structure in which the main shaft and the driving member cooperate, the main shaft can be easily used as the main supporting structure of the equipment, ensuring that the fixture seat is stably supported and installed by the main shaft, and ensuring that the angle of the fixture seat can be adjusted by the driving member after being installed on the main shaft. At the same time, by fixing the processing table on the upper end face of the fixture seat, it is convenient to use the processing table as a working platform for workpiece processing, and a number of movable clamping blocks are slidably installed on the processing table, and the several movable clamping blocks are evenly arranged along the circumferential direction. In this way, it can be ensured that the workpiece can be clamped and fixed synchronously from various angles by the several movable clamping blocks during use, ensuring that the workpiece is more stable during the processing, and the workpiece in various directions can be adjusted. The force is evenly distributed, which can effectively avoid the situation of uneven force. By fixing a multi-head shell at the center of the processing table, it is convenient to install driving parts 2 corresponding to the movable clamping blocks on each surface of the multi-head shell. When in use, the driving part 2 can be started to drive the movable clamping block to move stably, thereby realizing the operation of clamping, fixing and releasing the workpiece. By setting the same drive component, it is ensured that all driving parts 2 can work synchronously, so that all movable clamping blocks can be clamped and used synchronously. By installing the corresponding inner diameter measuring component on the upper end face of the multi-head shell, it is convenient to measure the inner diameter of the workpiece through the measuring component during the forming process, so as to better determine the processing and forming effect.

[0007] Furthermore, the main shaft includes a shaft body and an annular shell for mounting a fixture seat, the annular shell is coaxially arranged on the upper end surface of the shaft body, and the annular shell and the shaft body are formed integrally, the inner side surface of the annular shell is also fixedly installed with an auxiliary bearing, the outer ring of the auxiliary bearing is fixedly engaged with the annular shell, and the inner ring of the auxiliary bearing is fixed to the fixture seat, the driving member 1 includes a motor 1 and a connecting disk, the motor 1 is fixedly mounted on the head of the shaft body, the connecting disk is mounted on the output shaft of the motor 1, and the connecting disk is fixedly connected to the fixture seat.

[0008] By adopting the above technical scheme, by designing the main shaft into a structure in which the shaft body and the annular shell cooperate, the clamp seat can be installed through the annular shell on the upper end of the shaft body when it is easy to use, ensuring that the annular shell can be mounted on the clamp seat, and the two are connected by an auxiliary bearing, so that the clamp seat can be stably rotated and adjusted during processing. At the same time, by designing the driving part 1 into a structure in which the motor 1 and the connecting disk cooperate, the motor 1 can be fixedly installed on the shaft body when it is easy to use, and then connected to the clamp seat through the connecting disk on the output shaft of the motor 1, so that the clamp seat can be controlled by the motor 1 for rotation adjustment, and the motor 1 adopts a servo motor with a brake structure, which ensures that the clamp seat can be stably maintained at a certain position after the rotation adjustment is completed.

[0009] Furthermore, the fixture seat includes a seat shell and a connecting sleeve, a plurality of positioning blocks are arranged on the inner side of the bottom surface of the seat shell in a circumferential direction, the positioning blocks are integrally formed with the seat shell, the connecting sleeve is coaxially installed on the lower end surface of the seat shell, and the connecting sleeve is integrally formed with the seat shell, an inner ring top frame is installed on the upper end surface of the seat shell, and a concentric ring is integrally formed on the lower end surface of the inner ring top frame, the concentric ring is clamped and fixed on the inner side surface of the seat shell, and a rubber ring is also sleeved on the concentric ring, and a plurality of inner ear plates for fixed connection to the processing table are also arranged on the inner side surface of the inner ring top frame, and the inner ear plates are integrally formed with the inner ring top frame.

[0010] By adopting the above technical scheme, by designing the clamp seat into a structure that cooperates with the seat shell and the connecting sleeve, it can be inserted into the annular shell through the connecting sleeve for easy installation, and then fixed to the auxiliary bearing in the annular shell. By arranging a plurality of positioning blocks on the inner side of the bottom surface of the seat shell, it can ensure the auxiliary support of the horizontal screw on the driving member 2, and ensure that the driving member 2 is more stable during use. At the same time, by installing an inner ring top frame and a concentric ring on the upper end surface of the seat shell, the inner ring top frame and the concentric ring are used as the connecting structure between the seat shell and the processing table. During installation, the concentric ring is first clamped and fixed in the seat shell, and a rubber ring is sleeved on the concentric ring to avoid contact between the inner ring top frame and the seat shell, thereby increasing the stability of the installation. Then, the inner ring top frame can be used to support the installation of the processing table. After the processing table is placed on the upper end surface of the inner ring top frame, it can be connected to the inner ear plate through bolts through the processing table, thereby ensuring the stable use of the processing table.

[0011] Furthermore, the processing table includes a circular table plate and a center ring seat for positioning and installing the inner diameter measuring component. The circular table plate is provided with a plurality of radial grooves along the circumferential direction for sliding installation of the movable clamp, and the circular table plate is also provided with a connecting through hole corresponding to the inner ear plate. The center ring seat is arranged at the center of the circular table plate, and the center ring seat is integrally formed with the circular table plate.

[0012] By adopting the above technical solution, by designing the processing table into a circular table top to cooperate with the center ring seat, the circular table top can be used as a working platform for easy use, and a number of radial slide grooves are opened on the circular table top to facilitate the positioning and installation of the movable clamping block through the radial slide grooves. In this way, the movable clamping block can be moved along the direction of the radial slide groove to perform clamping operations during use. At the same time, by opening a connecting through hole corresponding to the inner ear plate on the circular table top, and opening a corresponding threaded hole on the inner ear plate, the installation and use can be carried out by passing bolts through the connecting through hole and fixing them to the threaded hole.

[0013] Furthermore, the multi-head shell includes a polygonal shell and a shell cover, the lower end of the polygonal shell is an open structure, and the shell cover is fixedly installed on the lower end surface of the polygonal shell, and a mounting sleeve for installing the second driving component is provided on the inner side surface of the polygonal shell, and the mounting sleeve is integrally formed with the polygonal shell. A vertical positioning groove is also provided on the side surface of the polygonal shell, and a motor seat is fixedly installed on the upper end surface of the shell cover.

[0014] By adopting the above technical scheme, by designing the multi-head shell into a structure in which a polygonal shell and a shell cover cooperate, the polygonal shell can be used as the main structure for installing the driving member 2 when it is easy to use, so that the driving member 2 can be rotated on the polygonal shell on which it is horizontally installed. At the same time, by arranging a mounting sleeve on the inner side of the polygonal shell, it can be ensured that the driving member 2 is installed more stably on the polygonal shell, and the driving member 2 is also more stable during the rotation process. The lower end of the polygonal shell is sealed and shielded by the setting of the shell cover, and the motor seat is fixedly installed on the shell cover, which facilitates the positioning, installation and use of the same-drive component. Moreover, by opening a positioning vertical groove on the side of the polygonal shell, the positioning vertical groove can be used to further facilitate the installation of the same-drive component and the connection with the driving member 2.

[0015] Furthermore, the movable clamping block includes a movable block, a top tray and a triangular clamping block, the movable block is slidably installed in a radial slide groove, the top tray and the movable block are respectively arranged at the upper and lower ends of the circular table plate, the top tray is fixedly installed on the upper end surface of the movable block, the triangular clamping block is integrally formed and arranged on the upper end surface of the top tray, and the side of the triangular clamping block facing the center of the circular table plate is arranged in an arc shape.

[0016] By adopting the above technical solution, the movable clamping block is designed to be a structure in which a movable block, a top tray and a triangular clamping block cooperate with each other. When it is easy to use, it can be installed at the lower end of the circular table through the movable block, and can be slid and adjusted in the radial slide groove. At the same time, by installing the top tray on the upper end surface of the circular table, and connecting the top tray to the movable block, it can be ensured that the two can move synchronously, and by fixing the triangular clamping block on the top tray, the workpiece can be clamped and fixed by the arc surface on the triangular clamping block when in use.

[0017] Furthermore, the second driving member includes a root seat rod and a horizontal screw rod, the root seat rod is installed in a mounting sleeve, and the root seat rod is rotatably connected to the mounting sleeve, a connecting flange is fixedly installed on the outer end of the root seat rod, a matching flange matching the connecting flange is fixedly installed on one end of the horizontal screw rod, and the other end of the horizontal screw rod is installed on a positioning support block, the connecting flange and the matching flange are fixedly connected by bolts, and a threaded groove matching the horizontal screw rod is opened on the movable block.

[0018] By adopting the above technical scheme, by designing the driving component 2 into a structure in which the root seat rod and the horizontal screw rod cooperate, it is easy to install by first rotating the root seat rod and installing it in the mounting sleeve of the polygonal shell, so that it can be ensured that the root seat rod can rotate stably during use. At the same time, the horizontal screw rod can be stably fixed on the outer end of the root seat rod by setting the connecting flange and the matching flange, and the other end of the horizontal screw rod can be placed on the positioning support block, so that the horizontal screw rod can be more stable and not easy to deform during the rotation operation. By opening a threaded groove on the movable block, the horizontal screw rod can be conveniently passed through for matching connection, so that the purpose of driving the movable block to move can be achieved by rotating the horizontal screw rod during use.

[0019] Furthermore, the co-drive component includes motor 2, pulley 1 and a transmission belt, motor 2 is fixedly mounted on a motor seat, pulley 1 is fixedly mounted on an output end of motor 2, pulley 2 is fixedly mounted on the root seat rod, pulley 1 and pulley 2 are connected via a transmission belt, a synchronous bevel gear is fixedly mounted on the inner end of the root seat rod, and adjacent synchronous bevel gears are meshed with each other.

[0020] By adopting the above technical scheme, by designing the co-drive component into a structure in which motor 2, pulley 1 and transmission belt cooperate, motor 2 can be used as a driving mechanism when in use. When in use, pulley 1 on motor 2 can drive pulley 2 of the root seat rod to rotate synchronously through the transmission belt, thereby achieving the purpose of driving the root seat rod to rotate. At the same time, the inner ends of the root seat rods are meshed and connected through synchronous bevel gears, thereby ensuring that the rotation of one seat rod can drive all other root seat rods to rotate synchronously, thereby driving all movable blocks to move synchronously through the horizontal screw.

[0021] Furthermore, the inner diameter measuring assembly includes a measuring shell, a lifting seat and a laser rangefinder, a plurality of guide slide bars are evenly installed in the measuring shell, the guide slide bars are vertically fixed on the inner side of the bottom surface of the measuring shell, the lifting seat includes a top cover and four corner brackets slidably matched with the lifting seat, the four corner brackets are fixedly installed on the lower end surface of the top cover, and an electric cylinder supporting the top cover is also fixedly installed in the measuring shell, the laser rangefinder is rotatably installed on the upper end surface of the top cover, and an angle motor for adjusting the angle of the laser rangefinder is installed in the top cover.

[0022] By adopting the above technical scheme, by designing the inner diameter measuring component into a structure in which the measuring shell, the lifting seat and the laser rangefinder cooperate, the measuring shell can be fixedly installed on the upper end surface of the polygonal shell when it is easy to use, and the measuring shell can also be clamped and fixed in the center ring seat, so that the stable installation of the measuring shell can be ensured, and at the same time, a number of guide slide bars are installed in the measuring shell, so that the lifting seat can be conveniently positioned, installed and slidably adjusted, and by designing the lifting seat into a structure in which the top cover and the four-corner bracket cooperate, the four-corner bracket can be stably sleeved on the guide slide bars when it is easy to install, and then the top cover can be fixedly installed on the upper end surface of the four-corner bracket, so that when in use, the lifting seat can be supported by the electric cylinder to stably adjust the height, and at the same time, the laser rangefinder is installed on the upper end surface of the top cover, and the angle of measurement is controlled by the angle motor, so that the inner diameter of the workpiece after processing can be measured and recorded at any time during the processing by the laser rangefinder, so that it is easier to accurately control the processing.

[0023] Furthermore, it also includes an equipment seat for the shaft frame to be installed, the equipment seat includes a base and an equipment table, the base includes a middle seat plate, a placement tube shell and a vertical tube, the placement tube shell is fixedly installed on both sides of the middle seat plate, the vertical tube is vertically fixed on the four corners of the upper end surface of the middle seat plate, the equipment table includes a main table frame and inner support rods, the inner support rods are evenly fixed on the four corners of the lower end surface of the main table frame, and the inner support rods are slidably installed in the vertical tubes, two electric cylinders supporting the main table frame are fixedly installed on both sides of the upper end surface of the middle seat plate, and a limit ring frame of the limit shaft frame is fixedly installed on the upper end surface of the main table frame.

[0024] By adopting the above technical scheme, the device seat is provided to ensure that the shaft body can be stably installed and used. At the same time, by designing the base into a structure in which a middle seat plate, a placement tube shell and a vertical tube cooperate, the middle seat plate can be stably placed on the ground or a table top through the placement tube shells at both ends for easy use, and by fixing the vertical tube on the middle seat plate, the equipment table can be supported and installed through the vertical tube when it is convenient to use, and the equipment table is designed as a structure in which a main table frame and an inner support rod cooperate. When it is easy to use, the main table frame can be stably inserted into the vertical tube through the inner support rod at the lower end, and then the height adjustment of the equipment table can be controlled by the electric cylinder 2 when it is convenient to use, thereby driving the height adjustment of the shaft frame, which makes it easier to perform sampling operations on the workpiece.

[0025] Compared with the prior art, the present invention has the following beneficial effects: The present application installs a rotatable and adjustable clamp seat on the axis frame, and when in use, the use angle of the clamp seat can be stably controlled by driving member 1. In this way, after the processing table is fixedly installed on the clamp seat, the workpiece can be stably placed for processing, and a plurality of adjustable movable clamps are evenly installed on the processing table, and the movable clamps can be controlled by driving member 2 to clamp the workpiece during processing. A plurality of movable clamps are arranged in the circumferential direction to ensure that the workpiece can be clamped evenly, and the force on the workpiece during processing is more evenly guaranteed, and deformation is not easy to occur. At the same time, by arranging the movable clamp block into a structure in which a movable block, a top tray and a triangular clamp block cooperate, the top tray can be used to support the lower end of the workpiece when clamping the workpiece, and the arc surface of the triangular clamp block can be used to clamp the side of the workpiece, which has the advantages of stable clamping, uniform force and not easy to deform.

[0026] The present application designs the driving member 2 to be a structure in which a seat rod and a horizontal screw rod cooperate. When it is easy to use, the horizontal screw rod can be rotated to drive the movable clamp to move and clamp, and the driving member 2 is driven by the same drive component to rotate, and the driving member 2 is set to be a structure in which a motor 2, a pulley 1 and a transmission belt cooperate, so that when needed, the motor 2 can be started to drive a driving member 2 to rotate, and the driving members 2 can be connected to each other through synchronous bevel gears, and then can rotate synchronously, so that all horizontal screws can be driven to work synchronously by one motor, and have the advantages of strong operating performance and good operation synchronization, thereby achieving synchronous clamping of all movable clamps and reducing uneven force.

[0027] The present application installs an inner diameter measuring component on the central ring seat of the processing table, and designs the inner diameter measuring component into a structure that cooperates with a measuring shell, a lifting seat and a laser rangefinder. When it is easy to use, the laser rangefinder can be used to measure the inner diameter of the processed workpiece. During use, the laser rangefinder can also be controlled by an electric cylinder and an angle motor to adjust the height and angle, thereby facilitating real-time measurement of the inner diameter of different positions of the workpiece. In this way, the processing scale can be more comprehensively grasped during the processing, thereby achieving more accurate processing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of the spinning machine of the present invention; Figure 2 is a three-dimensional diagram of the overall structure of an embodiment of the present invention; Figure 3 yes Figure 2 a front view of the device shown; Figure 4 is a three-dimensional diagram of a shaft frame in an embodiment of the present invention; Figure 5 is a three-dimensional diagram of the seat shell and the connecting sleeve in the embodiment of the present invention; Figure 6 is a three-dimensional diagram of the inner ring top frame in an embodiment of the present invention; Figure 7 is a three-dimensional diagram of a processing table in an embodiment of the present invention; Figure 8 It is a stereoscopic diagram of the cooperation of the multi-head housing, the movable clamping block, the second driving member, the co-driving assembly and the inner diameter measuring assembly in the embodiment of the present invention; Fig. 9 yes Figure 8 a front view of the device shown; Fig.10 is a stereoscopic diagram of the cooperation between the multi-head housing and the root seat rod in an embodiment of the present invention; Fig.11 yes Fig.10 a bottom view of the device shown; Fig.12 It is a three-dimensional diagram of the shaft frame and the equipment seat in the embodiment of the present invention; Fig.13 yes Fig.12 a front view of the device shown; Fig.14 yes Fig.12 Side view of the device shown.

[0030] In the figure: 1, shaft frame; 11, main shaft; 111, shaft body; 112, annular shell; 113, auxiliary bearing; 12, driving member 1; 121, motor 1; 122, connecting plate; 2, fixture seat; 21, seat shell; 211, positioning support block; 22, connecting sleeve; 23, inner ring top frame; 231, concentric ring; 232, inner ear plate; 233, rubber ring; 3, processing table; 31, circular table plate; 310, radial slide groove; 311, connecting through hole; 32, center ring seat; 4, multi-head shell; 41, polygonal shell; 411, mounting sleeve; 412, positioning vertical groove; 42, shell cover; 421, motor seat; 5, movable clamping block; 51, movable block; 52, top tray; 53, triangular clamping block ;6. Driving part 2;61. Root seat rod;611. Connecting flange;612. Pulley 2;613. Synchronous bevel gear;62. Horizontal screw;621. Matching flange;7. Same drive assembly;71. Motor 2;72. Pulley 1;73. Conveyor belt;8. Inner diameter measuring assembly;81. Measuring shell;811. Guide slide bar;82. Lifting seat;821. Top cover;822. Four-corner bracket;823. Angle motor;83. Laser rangefinder;84. Electric cylinder 1;9. Equipment seat;91. Base;911. Middle seat plate;912. Placement tube shell;913. Vertical tube;914. Electric cylinder 2;92. Equipment table;921. Main table frame;922. Inner support rod;923. Limiting ring frame. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Example

[0032] Reference Figure 1 , Figure 2 and Figure 3As shown, a clamping structure for a spinning machine includes an axle frame 1, the axle frame 1 includes a main shaft 11 and a driving member 12, a fixture seat 2 is installed at the head of the main shaft 11, the fixture seat 2 is rotatably connected to the main shaft 11, the driving member 12 is fixedly installed in the main shaft 11, and the driving member 12 is used to drive the fixture seat 2 to rotate, a processing table 3 is fixedly installed on the upper end surface of the fixture seat 2, a multi-head shell 4 is fixedly installed at the center of the processing table 3, and a plurality of movable clamps 5 are evenly installed on the processing table 3 along the circumferential direction, a plurality of driving members 6 that drive the movable clamps 5 to move radially along the processing table 3 are installed on the outer side surface of the multi-head shell 4, and a synchronous drive component 7 that drives the driving member 2 6 to rotate synchronously is fixedly installed in the multi-head shell 4, and an inner diameter measuring component 8 is also installed on the upper end surface of the multi-head shell 4. By designing the shaft frame 1 into a structure in which the main shaft 11 and the driving member 12 cooperate, the main shaft 11 can be easily used as the main supporting structure of the equipment, ensuring that the main shaft 11 can stably support the installation of the fixture seat 2, and ensuring that the angle of the fixture seat 2 can be adjusted by the driving member 12 after it is installed on the main shaft 11. At the same time, by fixing the processing table 3 on the upper end surface of the fixture seat 2, it is convenient to use the processing table 3 as a working platform for workpiece processing, and a plurality of movable clamping blocks 5 are slidably installed on the processing table 3, and the plurality of movable clamping blocks 5 are evenly arranged along the circumferential direction. In this way, it can be ensured that the workpiece can be clamped and fixed synchronously from various angles by the plurality of movable clamping blocks 5 during use, ensuring that the workpiece is more stable during processing and is protected in all directions. The force is uniform, which can effectively avoid the situation of uneven force. By fixing the multi-head shell 4 at the center of the processing table 3, it is convenient to install the driving parts 6 corresponding to the movable clamping blocks 5 on each surface of the multi-head shell 4. When in use, the driving parts 6 can be started to drive the movable clamping blocks 5 to move stably, so as to realize the operation of clamping and releasing the workpiece. By setting the same drive component 7, it is ensured that all driving parts 2 6 can work synchronously, so that all the movable clamping blocks 5 can be clamped and used synchronously. By installing the corresponding inner diameter measuring component 8 on the upper end surface of the multi-head shell 4, it is convenient to measure the inner diameter of the workpiece through the measuring component during the forming process, so as to better determine the processing effect.

[0033] Reference Figure 2 , Figure 3 and Figure 4As shown, the main shaft 11 includes a shaft body 111 and an annular shell 112 for installing the clamp seat 2. The annular shell 112 is coaxially arranged on the upper end surface of the shaft body 111, and the annular shell 112 and the shaft body 111 are integrally formed. The inner side surface of the annular shell 112 is also fixedly installed with an auxiliary bearing 113. The outer ring of the auxiliary bearing 113 is fixedly engaged with the annular shell 112, and the inner ring of the auxiliary bearing 113 is fixed to the clamp seat 2. The driving member 12 includes a motor 121 and a connecting disk 122. The motor 121 is fixedly installed on the head of the shaft body 111, the connecting disk 122 is installed on the output shaft of the motor 121, and the connecting disk 122 is fixedly connected to the clamp seat 2. By designing the main shaft 11 as a structure in which the shaft body 111 and the annular shell 112 cooperate, the clamp seat 2 can be installed through the annular shell 112 on the upper end of the shaft body 111 when it is easy to use, ensuring that the annular shell 112 can be installed on the clamp seat 2, and the two are connected by an auxiliary bearing 113, so that the clamp seat 2 can be stably rotated and adjusted during processing. At the same time, by designing the driving member 12 as a structure in which the motor 121 and the connecting disk 122 cooperate, the motor 121 can be fixedly installed on the shaft body 111 when it is easy to use, and then connected to the clamp seat 2 through the connecting disk 122 on the output shaft of the motor 121, so that the clamp seat 2 can be controlled by the motor 121 to rotate and adjust, and the motor 121 adopts a servo motor with a brake structure, which ensures that the clamp seat 2 can be stably maintained at a certain position after the rotation adjustment is completed.

[0034] Reference Figure 3 , Figure 5 and Figure 6As shown, the fixture seat 2 includes a seat shell 21 and a connecting sleeve 22. A plurality of positioning blocks 211 are arranged on the inner side of the bottom surface of the seat shell 21 along the circumferential direction. The positioning blocks 211 are integrally formed with the seat shell 21. The connecting sleeve 22 is coaxially installed on the lower end surface of the seat shell 21, and the connecting sleeve 22 is integrally formed with the seat shell 21. An inner ring top frame 23 is installed on the upper end surface of the seat shell 21. A concentric ring 231 is integrally formed on the lower end surface of the inner ring top frame 23. The concentric ring 231 is snap-fitted and fixed to the inner side surface of the seat shell 21, and a rubber ring 233 is also sleeved on the concentric ring 231. A plurality of inner ear plates 232 for fixedly connecting the processing table 3 are also arranged on the inner side surface of the inner ring top frame 23. The inner ear plates 232 are integrally formed with the inner ring top frame 23. By designing the fixture seat 2 into a structure in which the seat shell 21 and the connecting sleeve 22 cooperate, it is easy to install by inserting the connecting sleeve 22 into the annular shell 112, and then fixing it to the auxiliary bearing 113 in the annular shell 112. By arranging a plurality of positioning brackets 211 on the inner side of the bottom surface of the seat shell 21, it is possible to ensure auxiliary support for the horizontal screw 62 on the driving member 26, so that the driving member 26 is more stable during use. At the same time, by installing the inner ring top frame 23 and the concentric ring 231 on the upper end surface of the seat shell 21, the inner ring The top frame 23 and the concentric ring 231 serve as the connection structure between the seat shell 21 and the processing table 3. During installation, the concentric ring 231 is first snap-fitted and fixed in the seat shell 21, and a rubber ring 233 is sleeved on the concentric ring 231 to avoid contact between the inner ring top frame 23 and the seat shell 21, thereby increasing the stability of the installation. Then, the processing table 3 can be supported and installed by the inner ring top frame 23. After the processing table 3 is placed on the upper end surface of the inner ring top frame 23, it can be connected to the inner ear plate 232 by bolts passing through the processing table 3, thereby ensuring the stable use of the processing table 3.

[0035] Reference Figure 1 and Figure 7As shown, the processing table 3 includes a circular table plate 31 and a center ring seat 32 for positioning and installing the inner diameter measuring component 8. The circular table plate 31 is provided with a plurality of radial sliding grooves 310 for sliding installation of the movable clamp 5 along the circumferential direction, and the circular table plate 31 is also provided with a connecting through hole 311 corresponding to the inner ear plate 232. The center ring seat 32 is arranged at the center of the circular table plate 31, and the center ring seat 32 is integrally formed with the circular table plate 31. By designing the processing table 3 into a circular table plate 31 to cooperate with the center ring seat 32, the circular table plate 31 can be used as a working platform for easy use, and a plurality of radial grooves 310 are provided on the circular table plate 31 to facilitate the positioning and installation of the movable clamping block 5 through the radial grooves 310. In this way, when in use, the movable clamping block 5 can be moved along the direction of the radial grooves 310 to perform clamping operations. At the same time, a connecting through hole 311 corresponding to the inner ear plate 232 is provided on the circular table plate 31, and a corresponding threaded hole is provided on the inner ear plate 232. In this way, during installation, bolts can be passed through the connecting through hole 311 to fix them to the threaded hole.

[0036] Reference Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, the multi-head shell 4 includes a polygonal shell 41 and a shell cover 42. The lower end of the polygonal shell 41 is an open structure, and the shell cover 42 is fixedly installed on the lower end surface of the polygonal shell 41. A mounting sleeve 411 for installing the driving member 6 is provided on the inner side surface of the polygonal shell 41. The mounting sleeve 411 and the polygonal shell 41 are integrally formed. A positioning vertical groove 412 is also provided on the side of the polygonal shell 41. A motor seat 421 is fixedly installed on the upper end surface of the shell cover 42. By designing the multi-head shell 4 into a structure in which a polygonal shell 41 and a shell cover 42 cooperate, the polygonal shell 41 can be used as the main structure for installing the driving member 2 6 when it is easy to use, so that the driving member 2 6 can be rotated on the polygonal shell 41 on which it is horizontally installed. At the same time, by providing a mounting sleeve 411 on the inner side surface of the polygonal shell 41, it can be ensured that the driving member 2 6 is installed more stably on the polygonal shell 41, and the driving member 2 6 is also more stable during rotation. The lower end of the polygonal shell 41 is sealed and shielded by the provision of the shell cover 42, and the motor seat 421 is fixedly installed on the shell cover 42, so that the same drive component 7 is conveniently positioned, installed and used, and by providing a positioning vertical groove 412 on the side of the polygonal shell 41, it is convenient to further facilitate the installation of the same drive component 7 and the connection with the driving member 2 6 through the positioning vertical groove 412.

[0037] Reference Figure 2 and Figure 8As shown, the movable clamping block 5 includes a movable block 51, a top tray 52 and a triangular clamping block 53. The movable block 51 is slidably installed in the radial slide groove 310. The top tray 52 and the movable block 51 are respectively arranged at the upper and lower ends of the circular table 31. The top tray 52 is fixedly installed on the upper end surface of the movable block 51. The triangular clamping block 53 is integrally formed and arranged on the upper end surface of the top tray 52, and the side of the triangular clamping block 53 facing the center of the circular table 31 is set in an arc shape. By designing the movable clamping block 5 into a structure in which the movable block 51, the top tray 52 and the triangular clamping block 53 cooperate, it can be easily used to be installed at the lower end of the circular table 31 through the movable block 51, and can be slidably adjusted in the radial slide groove 310. At the same time, by installing the top tray 52 on the upper end surface of the circular table 31, and connecting the top tray 52 with the movable block 51, it can be ensured that the two can move synchronously, and by fixing the triangular clamping block 53 on the top tray 52, the workpiece can be clamped and fixed by the arc surface on the triangular clamping block 53 when in use. Example

[0038] Reference Figure 1 , Figure 2 and Figure 3 As shown, a clamping structure for a spinning machine includes an axis frame 1, the axis frame 1 includes a main shaft 11 and a driving member 12, a fixture seat 2 is installed at the head of the main shaft 11, the fixture seat 2 is rotatably connected to the main shaft 11, the driving member 12 is fixedly installed in the main shaft 11, and the driving member 12 is used to drive the fixture seat 2 to rotate, a processing table 3 is fixedly installed on the upper end surface of the fixture seat 2, a multi-head shell 4 is fixedly installed at the center of the processing table 3, and a plurality of movable clamping blocks 5 are evenly installed on the processing table 3 along the circumferential direction, the movable clamping blocks 5 include movable blocks 51, a top tray 52 and a triangular clamping block 53, a plurality of driving members 6 for driving the movable clamping blocks 5 to move radially along the processing table 3 are installed on the outer surface of the multi-head shell 4, and a synchronous drive component 7 for driving the driving member 6 to rotate synchronously is fixedly installed in the multi-head shell 4.

[0039] Reference Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, the driving member 2 6 includes a root seat rod 61 and a horizontal screw rod 62. The root seat rod 61 is installed in the mounting sleeve 411, and the root seat rod 61 is rotatably connected to the mounting sleeve 411. A connecting flange 611 is fixedly installed on the outer end of the root seat rod 61, and a matching flange 621 matching the connecting flange 611 is fixedly installed on one end of the horizontal screw rod 62, and the other end of the horizontal screw rod 62 is installed on the positioning support block 211. The connecting flange 611 and the matching flange 621 are fixedly connected by bolts, and a threaded groove matching the horizontal screw rod 62 is opened on the movable block 51. By designing the driving member 2 6 into a structure in which a root seat rod 61 and a horizontal screw rod 62 cooperate with each other, it is easy to install by first rotating the root seat rod 61 and installing it in the mounting sleeve 411 of the polygonal shell 41, so that the root seat rod 61 can be stably rotated during use. At the same time, the horizontal screw rod 62 can be stably fixed on the outer end of the root seat rod 61 by setting the connecting flange 611 and the matching flange 621, and the other end of the horizontal screw rod 62 can be placed on the positioning support block 211, so that the horizontal screw rod 62 can be more stable and not easily deformed during the rotation operation. By providing a threaded groove on the movable block 51, the horizontal screw rod 62 can pass through for matching connection, so that the purpose of driving the movable block 51 to move can be achieved by rotating the horizontal screw 62 during use.

[0040] Reference Figure 8 and Fig. 9 As shown, the drive assembly 7 includes a second motor 71, a pulley 72 and a transmission belt 73. The second motor 71 is fixedly mounted on the motor base 421, the pulley 72 is fixedly mounted on the output end of the second motor 71, the root base rod 61 is sleeved with a pulley 612, the pulley 72 and the pulley 612 are connected by the transmission belt 73, and a synchronous bevel gear 613 is fixedly mounted on the inner end of the root base rod 61, and adjacent synchronous bevel gears 613 are meshed with each other. By designing the co-drive component 7 into a structure in which motor 2 71, pulley 1 72 and transmission belt 73 cooperate, motor 2 71 can be used as a driving mechanism when in use. When in use, pulley 1 72 on motor 2 71 can drive pulley 2 612 of the root seat rod 61 to rotate synchronously through transmission belt 73, thereby achieving the purpose of driving the root seat rod 61 to rotate. At the same time, the inner end of the root seat rod 61 is meshed and connected through the synchronous bevel gear 613, thereby ensuring that the rotation of one seat rod 61 can drive all other root seat rods 61 to rotate synchronously, and then drive all movable blocks 51 to move synchronously through the horizontal screw 62. Example

[0041] Reference Figure 1 , Figure 2 and Figure 3As shown, a clamping structure for a spinning machine includes a shaft frame 1, the shaft frame 1 includes a main shaft 11 and a driving member 12, a clamp seat 2 is installed at the head of the main shaft 11, the clamp seat 2 is rotatably connected to the main shaft 11, the driving member 12 is fixedly installed in the main shaft 11, and the driving member 12 is used to drive the clamp seat 2 to rotate, a processing table 3 is fixedly installed on the upper end surface of the clamp seat 2, a multi-head shell 4 is fixedly installed at the center of the processing table 3, the multi-head shell 4 includes a polygonal shell 41 and a shell cover 42, the lower end of the polygonal shell 41 is an open structure, and the shell cover 42 is fixedly installed on the lower end surface of the polygonal shell 41, and the upper end surface of the polygonal shell 41 is also installed with an inner diameter measuring component 8.

[0042] Reference Figure 2 , Figure 8 and Fig. 9 As shown, the inner diameter measuring assembly 8 includes a measuring shell 81, a lifting seat 82 and a laser rangefinder 83. A plurality of guide slide bars 811 are evenly installed in the measuring shell 81. The guide slide bars 811 are vertically fixed on the inner side of the bottom surface of the measuring shell 81. The lifting seat 82 includes a top cover 821 and four corner brackets 822 slidably matched with the lifting seat 82. The four corner brackets 822 are fixedly installed on the lower end surface of the top cover 821. An electric cylinder 84 supporting the top cover 821 is also fixedly installed in the measuring shell 81. The laser rangefinder 83 is rotatably installed on the upper end surface of the top cover 821, and an angle motor 823 for adjusting the angle of the laser rangefinder 83 is installed in the top cover 821. By designing the inner diameter measuring assembly 8 into a structure in which the measuring shell 81, the lifting seat 82 and the laser rangefinder 83 cooperate, the measuring shell 81 can be fixedly installed on the upper end surface of the polygonal shell 41 when it is easy to use, and the measuring shell 81 can also be clamped and fixed in the center ring seat 32, so that the stable installation of the measuring shell 81 can be ensured. At the same time, by installing a plurality of guide slide bars 811 in the measuring shell 81, it is convenient for the lifting seat 82 to be positioned, installed and slidably adjusted. By designing the lifting seat 82 into a structure in which the top cover 821 and the four-corner brackets 822 cooperate, For ease of installation, the four-corner bracket 822 is stably mounted on the guide slide bar 811, and then the top cover 821 is fixedly mounted on the upper end surface of the four-corner bracket 822. In this way, the lifting seat 82 can be stably supported by the electric cylinder 84 for height adjustment during use. At the same time, the laser rangefinder 83 is installed on the upper end surface of the top cover 821, and the angle of measurement is controlled by the angle motor 823. In this way, the inner diameter of the workpiece after processing can be measured and recorded at any time by the laser rangefinder 83 during the processing, which makes it easier to accurately control the processing. Example

[0043] Reference Fig.12 , Fig.13 and Fig.14As shown, a clamping structure for a spinning machine includes a shaft frame 1, the shaft frame 1 includes a main shaft 11 and a driving member 12, and the driving member 12 is fixedly installed in the main shaft 11. It also includes an equipment seat 9 for installing the main shaft 11, the equipment seat 9 includes a base 91 and an equipment table 92, the base 91 includes a middle seat plate 911, a placement tube shell 912 and a vertical tube 913, the placement tube shell 912 is fixedly installed on both sides of the middle seat plate 911, and the vertical tube 913 is vertically fixed on the four corners of the upper end surface of the middle seat plate 911. The equipment table 92 includes a main table frame 921 and inner support rods 922, the inner support rods 922 are evenly fixed on the four corners of the lower end surface of the main table frame 921, and the inner support rods 922 are slidably installed in the vertical tubes 913, electric cylinders 914 supporting the main table frame 921 are fixedly installed on both sides of the upper end surface of the middle seat plate 911, and a limiting ring frame 923 for limiting the main shaft 11 is fixedly installed on the upper end surface of the main table frame 921. The equipment seat 9 is provided to ensure that the shaft body 111 is stably installed and used. At the same time, the base 91 is designed to be a structure in which the middle seat plate 911, the placement tube shell 912 and the vertical tube 913 cooperate. When it is easy to use, the middle seat plate 911 can be stably placed on the ground or table top through the placement tube shells 912 at both ends for use. The vertical tube 913 is fixedly installed on the middle seat plate 911. When it is convenient to use, the equipment table 92 can be supported and installed through the vertical tube 913. The equipment table 92 is designed to be a structure in which the main table frame 921 and the inner support rod 922 cooperate. When it is easy to use, the main table frame 921 can be stably inserted into the vertical tube 913 through the inner support rod 922 at the lower end. Then, when it is convenient to use, the height adjustment of the equipment table 92 can be controlled by the electric cylinder 914, thereby driving the shaft frame 1 to adjust its height, making it easier to perform sampling operations on the workpiece. The stability of the shaft frame 1 when in use is increased by the provision of the limit ring frame 923.

[0044] Working principle: During processing, first start the electric cylinder 2 914 to lower the shaft frame 1 as a whole, then the workpiece to be processed can be placed on the processing table 3, and the motor 2 71 is started to drive the root seat rod 61 to rotate. The root seat rods 61 are synchronously linked through the synchronous bevel gear 613, and then all the horizontal screw rods 62 are driven to rotate synchronously. The rotation of the horizontal screw 62 drives all the movable clamps 5 to synchronously gather toward the center of the processing table 3. The synchronous gathering method can ensure that the clamped workpiece is always in the center of the processing table 3, which is convenient for better measurement through the inner diameter measuring component 8. The workpiece can be clamped by the movable clamping block 5, and the workpiece is placed on the top tray 52 during clamping, so that the lower end of the workpiece can be supported by the top tray 52, and the outer side of the workpiece can be clamped by the triangular clamping block 53, thereby ensuring the stability of the workpiece during processing. After clamping, the electric cylinder 2 914 can be started to lift the workpiece, so that the large grinding wheel and small grinding wheel and other processing mechanisms at the upper end of the spinning machine can perform forming operations, and during the forming process, the operator can flexibly control the laser rangefinder 83 to measure different positions of the workpiece through the electric cylinder 1 84 and the angle motor 823.

[0045] The implementation principle and technical effects of the device provided in the embodiment of the present invention are the same as those of Example 1. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in Example 1.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping structure for a spinning machine, comprising a shaft frame (1), characterized in that: The shaft frame (1) comprises a main shaft (11) and a driving member 1 (12); a fixture seat (2) is installed at the head of the main shaft (11); the fixture seat (2) is rotatably connected to the main shaft (11); the driving member 1 (12) is fixedly installed in the main shaft (11), and the driving member 1 (12) is used to drive the fixture seat (2) to rotate; a processing table (3) is fixedly installed on the upper end surface of the fixture seat (2); a multi-head shell (4) is fixedly installed at the center of the processing table (3); a plurality of movable clamping blocks (5) are evenly installed on the processing table (3) along the circumferential direction; a plurality of driving members 2 (6) for driving the movable clamping blocks (5) to move radially along the processing table (3) are installed on the outer side surface of the multi-head shell (4); a synchronous drive component (7) for driving the plurality of driving members 2 (6) to rotate synchronously is fixedly installed in the multi-head shell (4); and an inner diameter measuring component (8) is also installed on the upper end surface of the multi-head shell (4).

2. A clamping structure for a spinning machine according to claim 1, characterized in that: The main shaft (11) comprises a shaft body (111) and an annular shell (112) for mounting a fixture seat (2); the annular shell (112) is coaxially arranged on the upper end surface of the shaft body (111), and the annular shell (112) and the shaft body (111) are integrally formed; an auxiliary bearing (113) is also fixedly mounted on the inner side surface of the annular shell (112); the outer ring of the auxiliary bearing (113) is engaged and fixed with the annular shell (112), and the inner ring of the auxiliary bearing (113) is fixed with the fixture seat (2); the driving member (12) comprises a motor (121) and a connecting disk (122); the motor (121) is fixedly mounted on the head of the shaft body (111), the connecting disk (122) is mounted on the output shaft of the motor (121), and the connecting disk (122) is fixedly connected to the fixture seat (2).

3. A clamping structure for a spinning machine according to claim 2, characterized in that: The clamp seat (2) comprises a seat shell (21) and a connecting sleeve (22); a plurality of positioning brackets (211) are arranged on the inner side of the bottom surface of the seat shell (21) along the circumferential direction; the positioning brackets (211) and the seat shell (21) are integrally formed; the connecting sleeve (22) is coaxially mounted on the lower end surface of the seat shell (21); the connecting sleeve (22) and the seat shell (21) are integrally formed; and an inner ring top frame (21) is mounted on the upper end surface of the seat shell (21). 3), a concentric ring (231) is integrally formed on the lower end surface of the inner ring top frame (23), the concentric ring (231) is snap-fitted and fixed to the inner side surface of the seat shell (21), and a rubber ring (233) is sleeved on the concentric ring (231), and a plurality of inner ear plates (232) for fixed connection to the processing table (3) are also provided on the inner side surface of the inner ring top frame (23), and the inner ear plates (232) are integrally formed with the inner ring top frame (23).

4. A clamping structure for a spinning machine according to claim 3, characterized in that: The processing table (3) comprises a circular table plate (31) and a center ring seat (32) for positioning and installing an inner diameter measuring component (8); the circular table plate (31) is provided with a plurality of radial sliding grooves (310) along a circumferential direction for slidingly installing a movable clamping block (5); the circular table plate (31) is also provided with a connecting through hole (311) corresponding to the inner ear plate (232); the center ring seat (32) is arranged at the center of the circular table plate (31), and the center ring seat (32) and the circular table plate (31) are integrally formed.

5. The clamping structure for a spinning machine according to claim 4, characterized in that: The multi-head housing (4) comprises a polygonal shell (41) and a shell cover (42); the lower end of the polygonal shell (41) is an open structure, and the shell cover (42) is fixedly mounted on the lower end surface of the polygonal shell (41); a mounting sleeve (411) for mounting a second driving member (6) is provided on the inner side surface of the polygonal shell (41); the mounting sleeve (411) and the polygonal shell (41) are integrally formed; a positioning vertical groove (412) is also provided on the side surface of the polygonal shell (41); and a motor seat (421) is fixedly mounted on the upper end surface of the shell cover (42).

6. The clamping structure for a spinning machine according to claim 5, characterized in that: The movable clamping block (5) comprises a movable block (51), a top tray (52) and a triangular clamping block (53); the movable block (51) is slidably mounted in a radial slide groove (310); the top tray (52) and the movable block (51) are respectively arranged at the upper and lower ends of the circular table (31); the top tray (52) is fixedly mounted on the upper end surface of the movable block (51); the triangular clamping block (53) is integrally formed and arranged on the upper end surface of the top tray (52); and a side of the triangular clamping block (53) facing the center of the circular table (31) is arranged in an arc shape.

7. A clamping structure for a spinning machine according to claim 6, characterized in that: The second driving member (6) comprises a root seat rod (61) and a horizontal screw rod (62); the root seat rod (61) is installed in the mounting sleeve (411), and the root seat rod (61) is rotatably connected to the mounting sleeve (411); a connecting flange (611) is fixedly installed on the outer end of the root seat rod (61); a matching flange (621) matching the connecting flange (611) is fixedly installed on one end of the horizontal screw rod (62); and the other end of the horizontal screw rod (62) is installed on the positioning support block (211); the connecting flange (611) and the matching flange (621) are fixedly connected by bolts; and a threaded groove matching the horizontal screw rod (62) is provided on the movable block (51).

8. The clamping structure for a spinning machine according to claim 7, characterized in that: The co-drive assembly (7) comprises a second motor (71), a first pulley (72) and a transmission belt (73); the second motor (71) is fixedly mounted on a motor base (421); the first pulley (72) is fixedly mounted on an output end of the second motor (71); the second pulley (612) is sleeved and fixedly mounted on the root base rod (61); the first pulley (72) and the second pulley (612) are connected via a transmission belt (73); a synchronous bevel gear (613) is fixedly mounted on an inner end of the root base rod (61), and adjacent synchronous bevel gears (613) are meshed with each other.

9. The clamping structure for a spinning machine according to claim 8, characterized in that: The inner diameter measuring assembly (8) comprises a measuring shell (81), a lifting seat (82) and a laser rangefinder (83). A plurality of guide slide bars (811) are evenly installed in the measuring shell (81). The guide slide bars (811) are vertically fixed to the inner side of the bottom surface of the measuring shell (81). The lifting seat (82) comprises a top cover (821) and four corner brackets (822) slidably matched with the lifting seat (82). The four corner brackets (822) are fixedly installed on the lower end surface of the top cover (821). An electric cylinder (84) supporting the top cover (821) is also fixedly installed in the measuring shell (81). The laser rangefinder (83) is rotatably installed on the upper end surface of the top cover (821), and an angle motor (823) for adjusting the angle of the laser rangefinder (83) is installed in the top cover (821).

10. A clamping structure for a spinning machine according to any one of claims 2 to 9, characterized in that: It also includes an equipment seat (9) for mounting the shaft frame (1), the equipment seat (9) including a base (91) and an equipment table (92), the base (91) including a middle seat plate (911), a placement tube shell (912) and a vertical tube (913), the placement tube shell (912) being fixedly mounted on both sides of the middle seat plate (911), the vertical tube (913) being vertically fixed on four corners of the upper end surface of the middle seat plate (911), and the equipment table (92) The invention comprises a main platform frame (921) and inner support rods (922), wherein the inner support rods (922) are evenly fixed to four corners of the lower end surface of the main platform frame (921), and the inner support rods (922) are slidably installed in the vertical tube (913), and the two sides of the upper end surface of the middle seat plate (911) are fixedly installed with electric cylinders (914) supporting the main platform frame (921), and the upper end surface of the main platform frame (921) is fixedly installed with a limiting ring frame (923) of the shaft frame (1).

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