105 results about "Multiaxis machining" patented technology

The invention relates to the technical field of machining control, in particular to an intelligent planning system and method for a multi-axis linkage numerical control machining path, and the system comprises a data collection unit which is used for obtaining the form attribute parameter information of a machined workpiece and the axial motion attribute parameter information of a multi-axis machining unit; and the initial division unit is used for performing initial division on a workpiece machining range according to the morphological attribute parameter information and the axial motion attribute parameter information to obtain an initial segmentation result and an initial trajectory planning result of the machining range, and the initial trajectory planning result comprises coordinate information of each trajectory segment. The collision condition between the motion path of the cutting tool and the feature range of the workpiece can be checked in real time through the collision checking unit, and the path is automatically adjusted through the collision avoidance unit, so that possible machining errors and equipment damage are avoided, and the machining safety and stability are greatly improved through intelligent collision avoidance.

The invention relates to the technical field of numerical control systems, in particular to a control system for processing precision parts of semiconductor equipment, which comprises an information entropy monitoring module for acquiring torque measurement values based on real-time data of a milling cutter and a processing path, arranging the torque measurement values according to a time sequence and selecting continuous torque data segments by using a sliding window. According to the method, through real-time monitoring and dynamic adjustment of process parameters, the precision and efficiency of semiconductor equipment precision part machining are remarkably improved, the means of combining information entropy evaluation and dynamic optimization is implemented, precise control over the stability in the machining process is achieved, it is ensured that the machining parameters are always in the optimal state, and the machining precision is improved. According to the precise control, errors in the manufacturing process are reduced, the consistency and quality of parts are improved, topological errors in multi-axis machining are effectively reduced by predicting and compensating synchronous errors in real time, higher precision and production efficiency are ensured, and the strict requirements for high performance and high reliability are met.

The steering knuckle multi-axis machining platform comprises a base, a rotating platform is installed in the middle of the base, a Y-axis linear motion module is installed at the output end of the rotating platform, a first sliding plate is installed at the output end of the Y-axis linear motion module, and an X-axis linear motion module is installed at the upper end of the first sliding plate; a second sliding plate is installed at the output end of the X-axis linear motion module, and a bottom plate is fixed to the upper end of the second sliding plate. Clamping plates are arranged on the front side and the rear side of the upper end of the bottom plate correspondingly, driving parts are installed between the clamping plates and the bottom plate and used for driving the two clamping plates to move relatively, and adjusting parts are installed on the sides, close to each other, of the clamping plates. According to the multi-axis machining platform for the steering knuckle, through the unique multi-layer non-collinear adjusting pieces with sliding fit and the assistance of the rubber pads at the positioning blocks, the steering knuckle is subjected to accurate shape matching positioning.

The invention relates to the technical field of multi-axis machining, and particularly discloses a combined multi-axis machining center which comprises a box body, a multi-axis machining mechanism is installed in the box body, two fixing plates are installed at the position, below the multi-axis machining mechanism, in the box body, a filtering plate is installed between the two fixing plates, and a fixing base is installed on the inner bottom face of the box body. An auxiliary feeding and discharging mechanism is arranged at the tops of the two fixing plates and comprises two rotating rods, clamping plates are installed at the tops of the two rotating rods, and protection mechanisms are installed in the two rotating rods. According to the device, when a workpiece is machined through the device, splashing chippings and cutting fluid are shielded through the protection mechanism, so that the chippings and the cutting fluid can move downwards, the chippings and the cutting fluid are automatically filtered through a filter plate, and therefore the effect of classified treatment of the chippings and the cutting fluid can be achieved, and the subsequent workload of workers is reduced; and the device can be better used by people.

The present invention relates to the field of numerical control machine tool control technology, and particularly relates to a high-precision multi-axis machining composite numerical control machine tool control system, including: a collection module; a prediction module respectively determines a radius time series curve and a length time series curve according to the tool radius and the tool length, and constructs a tool wear prediction model in combination with the vibration amplitude and the preset movement path of the tool; an analysis module determines the tool wear degree according to the tool wear prediction model, and determines the critical influence path segment and the non-critical influence path segment according to the vibration amplitude; an optimization module determines the correction direction and the path correction amount according to the critical influence path segment, the non-critical influence path segment and the tool wear degree to determine the new tool movement path, and determines the adjustment method for the cutting speed / feed speed according to the tool wear degree. The present invention incorporates tool wear into the dynamic adjustment mechanism of the path, improving the machining accuracy.

The invention relates to the technical field of numerical control machine tool adjustment and control, in particular to a five-axis linkage numerical control machine tool linkage error comprehensive compensation method and device, and the method comprises the steps: designing a feedforward controller, achieving the servo feedforward compensation of a drive shaft of a machining center, perfecting a pre-constructed linkage error prediction model under the servo feedforward compensation, and obtaining a linkage error prediction result; a corrected linkage error prediction model is obtained; determining a feed-forward control coefficient according to a given processing track instruction, and determining a feed-forward compensation residual error after servo feed-forward compensation based on the corrected linkage error prediction model; and on the basis of a pre-constructed instruction correction compensation method model, in combination with the predicted feed-forward compensation residual error, a machining instruction is corrected, so that comprehensive compensation for the linkage error of the multi-axis machining center is realized on the premise that the stability of a control system is not influenced basically. Therefore, the problems that an existing control method of the commercial multi-axis machining center is difficult to consider high linkage machining precision and guarantee the stability of a control system and the like are solved.

The present invention discloses a waste chip cleaning device for a continuous operation machine tool, and relates to the technical field of machine tool waste chip cleaning devices, which comprises an operation machine tool, wherein the operation machine tool comprises a processing table and a multi-axis processing mechanism matching the processing table, wherein a waste chip cleaning device is arranged on the processing table, and the waste chip cleaning device comprises a slag flushing mechanism, a slag collecting mechanism and a driving device. First of all, the slag flushing mechanism comprises a linear motion module A, a high-pressure water gun and an unpowered pump. A water storage chamber is arranged inside the processing table, and the water storage chamber, the water pump and the high-pressure water gun are connected by pipelines. The slag collecting mechanism comprises a slag collecting box, a linear motion module A and a slag pushing filter frame, and the driving device is used to provide power to the linear motion of the unpowered pump and the linear motion module A. The device can reduce manpower, and clean thoroughly without stopping the machine for cleaning.

The invention discloses a high-efficiency automatic control platform for multi-axis machining of parts, relates to the technical field of machining automation, and aims to solve the problems that the evaluation of the machining difficulty of the parts always depends on artificial experience or simple rules, so that the subjectivity is high, the evaluation is not accurate enough, and the production cost is high in the existing manufacturing process which always depends on a large amount of artificial intervention and experience. And a full-automatic and intelligent decision support system is lacked. According to different processing difficulty degrees of parts caused by different strength and hardness of raw materials and different processing step number and tolerance requirements, the parts which are difficult to process are processed step by step according to the classification of the difficulty degrees of the parts, and the system can automatically select proper strategies and algorithms according to actual processing requirements, so that the processing efficiency is improved. The machining efficiency and quality are improved, human intervention is reduced, the production efficiency is improved, the system can conduct self-adaptive adjustment according to real-time data in the machining process, and the precision and flexibility of the machining process are improved.

The invention discloses a process-in-the-loop numerical control device and method, and belongs to the technical field of numerical control. The process-in-the-loop numerical control device comprises a non-real-time process optimizer, and the non-real-time process optimizer carries out process optimization processing on original track data input by a user based on a track error prediction model of deep learning; comprehensive errors generated in the multi-axis machining process are effectively compensated; the interpolator and the position controller are used for calculating a middle point coordinate of the movement track and accurately controlling the cutter to reach a target position; the process prediction observer constructs a dynamic observer by using a neural network technology, and carries out real-time feed-forward compensation in the processing process; and the physical machine tool carries out machining operation. According to the technology-in-the-loop numerical control device and method, the non-real-time technology optimizer and the technology prediction observer are added, the machining technology is subjected to deep fusion prediction, optimization and dynamic closed-loop control through virtual machine tool simulation and physical machine tool feedback, the machining track is optimized in real time, and errors are compensated.

The invention discloses a pipe fitting free bending forming device for integrated variable shaft machining. The basic moving module is used for providing translation freedom degrees of the bending die in the X direction and the Y direction, and the precision adjusting module comprises two state switching modules and two auxiliary adjusting modules. The bending die can be switched among a follow-up state, a semi-active state and an active state by changing the position of a rotating motor in the state switching module and the position of a driven shaft in the auxiliary adjusting module, the number of machining shafts of the device is adjusted, and the fixed guiding module is located on the rear side of the bending machining module. The fixed guide module is always kept static in the machining process, and the arc face of the front end of the guide mechanism makes contact with a guide tail wing of the bending machining module so as to control the machining posture of the bending die in the follow-up and semi-active state. The machining quality and the machining efficiency of the bent pipe are improved, and meanwhile the application range of the whole device can be widened.

The utility model discloses a vertical drilling machine for multi-station machining, which comprises a base, a positioning column is arranged in the base, the top of the positioning column is connected with an operating frame, a rotary table is arranged at the top of the base, a plurality of placing tables are arranged on the rotary table, positioning mechanisms are mounted on the placing tables, and workpieces are clamped on the positioning mechanisms. A plurality of sliding grooves are formed in the periphery of the operation frame, a lifting seat is arranged in each sliding groove in a sliding fit mode, a driving mechanism is arranged in each lifting seat, the bottom of each driving mechanism is connected with a cardan shaft, the bottom of each cardan shaft is connected with a drilling assembly, an operation cover is arranged at the bottom of each lifting seat, a plurality of hoisting plates are installed at the bottom of each operation cover, and the drilling assemblies are installed on the hoisting plates respectively. The drilling machine has the advantages that automatic clamping and automatic positioning drilling can be carried out, multi-hole machining of the same workpiece can be carried out at the same time, multi-axis machining of the workpiece is achieved, meanwhile, overall arrangement is simple, feeding and discharging of the workpiece are facilitated, and the drilling machining time is shortened.

The invention relates to the technical field of mechanical manufacturing detection, and particularly discloses an online detection method for an integrated thread go-no go gauge of a multi-axis machining center. The method aims to solve the problems of low efficiency and secondary clamping errors caused by off-line detection after thread machining. The method is characterized in that on a multi-axis machining center, a thread detection unit integrated with a torque sensor and a linear driver serves as a standard tool to be managed; after machining, the main shaft automatically grabs the unit and positions the unit to a threaded hole, and constant-force propelling of a driver is cooperated with rotary feeding of the main shaft; in the process, the system collects torque-screwing depth data in real time, a process curve is generated, the process curve is compared with a standard curve template in form, and the non-go gauge screwing torque gradient is analyzed, so that authority judgment and quality analysis of the thread function are completed online, and a result is fed back to a numerical control system to form a process closed loop. The technical problems of thread on-machine authoritative detection and process closed-loop control are solved.

The invention relates to the field of laser cutting processing machine tools, in particular to a multi-axis processing machine tool with a protection function, which comprises a sawtooth conveying belt machine tool, an electric control Z-axis moving mechanism, an electric control X-axis moving mechanism, an electric control Y-axis moving mechanism, a laser cutting machine and the like. According to the multi-axis machining tool with the protection function, the transparent observation piece and the light filter form a circle of observation window with light filtering protection in a small range on the outer side of the laser cutting gun head, so that a worker can conveniently observe the working state of the laser cutting gun head in a close range; and meanwhile, a water flow protection layer is sprayed on the surface of the transparent observation sheet through a liquid spraying head on the shunting ring pipe, so that high-temperature waste residues and flue gas which are sputtered towards the transparent observation sheet are intercepted in time. The defects that a multi-axis laser cutting machine tool can generate strong ultraviolet rays and visible light radiation to cause irreversible damage to eyes and skin of a human body, and a shading sheet surrounding the edge of the machine tool in a large area can hinder close-range observation of a worker are overcome.

The present invention discloses a positioning turning device for multi-axis processing of special-shaped components. The present invention relates to the field of turning technology, including a turning mechanism. The positioning turning device for multi-axis processing of special-shaped components, through the turning mechanism design, places the material inside the fixing mechanism, and clamps and fixes the material through the fixing mechanism, thereby maintaining the stability of the material and facilitating subsequent turning. The first frame and the second frame slide on the second slide rail and the first slide rail, facilitating position adjustment according to the material size to meet the turning operation of components of different sizes. The cutting block slides on the slide frame to adjust the range with the material, thereby facilitating the cutting of the material and improving the application range of the equipment. The connecting shaft drives the fixing mechanism to rotate, causing the material to rotate and rub against the cutting block, thereby achieving the turning operation of the material. The debris flows from the groove in the middle of the turning base to the inside of the cleaning mechanism, reducing the debris on the surface of the equipment and maintaining the normal operation of the equipment.

Method (26) for machining a workpiece (14) with a device (10), wherein the device (10) comprises a processing machine (12) which is designed for three-dimensional machining of the workpiece (14) and has a tool head (22) with a tool which is movable about at least a first axis (16) and a second axis (18), wherein the method (26) is carried out by the device (10) and comprises the following method steps: B) Acquiring input data (42) on the contour of the workpiece (14), the contour of the tool head (22), the distance between the tool head (22) and the workpiece (14), the first axis (16) and the second axis (18); C) processing the input data (42) into feature data (46); D) processing the feature data (46) in a machine learning algorithm (28) of the device (10); E) Outputting a prediction from the machine learning algorithm (28) regarding the collision of the tool head (22) with the workpiece (14) and / or another part of the processing machine (12).

The utility model belongs to the technical field of CNC (computer numerical control) multi-axis machining machine tables, and particularly relates to a CNC multi-axis machining machine table which comprises a CNC multi-axis machining machine table body, a waste chip cleaning assembly is mounted on the side of the CNC multi-axis machining machine table body, and an anti-splashing assembly is arranged on the side of the waste chip cleaning assembly. A machining drawing fixing assembly is fixedly connected to the outer wall of the CNC multi-axis machining machine table body, and a part machining assembly is installed at the top of the CNC multi-axis machining machine table body. The waste chip cleaning assembly comprises a motor, a threaded rod, a connecting block, a clamping rod, a cleaning strip, a sliding rod, a sliding groove, a rolling rod and a waste chip collecting box. According to the CNC multi-axis machining machine table, environmental pollution or personnel injury caused by splashing of sweeps generated in the process of machining parts through the CNC multi-axis machining machine table can be conveniently prevented, potential safety hazards are avoided, and meanwhile the generated sweeps can be conveniently collected; and personnel can check specific details and requirements of part machining while inputting an instruction on a computer.

The invention provides a special mechanical multi-shaft machining center for a cone bit palm, which comprises a main machine, a driving mechanism is arranged on the main machine, the driving mechanism is connected with a drill bit, a support frame is fixedly connected to the main machine, a U-shaped support table is rotatably connected to the support frame, and a plurality of rotating shafts are arranged on the support table. The supporting table is fixedly connected with a working table, the working table is connected with a positioning frame used for fixing a bit leg, the main machine is fixedly connected with a guide plate, the end of the guide plate is connected with a collecting box, the main machine is fixedly connected with a power motor, and the power motor is connected with a driving motor. The main machine is fixedly connected with a supporting plate located on the side, away from the supporting table, of the guiding plate, the supporting plate is slidably connected with a sliding base, the sliding base is connected with a scraping plate used for abutting against the surface of the guiding plate, and the power motor is started and enables the sliding base to move in a reciprocating mode in the length direction of the supporting plate through a conduction structure. And the effect of automatically cleaning the chippings is achieved.

The invention discloses a multi-axis machining center for metal accessories, and relates to the technical field of machining, the multi-axis machining center comprises a machining box body, a rotating shaft and a mounting groove, the rotating shaft is arranged in the machining box body, the mounting groove is formed in the rotating shaft, a milling cutter is arranged in the mounting groove, and the milling cutter is arranged in the machining box body. An inserting groove is formed in the middle of the milling cutter, a threaded rod is arranged in the inserting groove, the threaded rod and the mounting groove are in threaded connection and installation, the anti-deviation unit comprises a positioning round rod, a plurality of penetrating grooves are evenly formed in the milling cutter along the track of the outer wall of the inserting groove, and the positioning round rod is arranged in the inserting groove. A positioning round rod is slidably mounted in each penetrating groove, a groove is formed in the mounting groove, each positioning round rod is inserted into the corresponding groove, and the threaded rod and each positioning round rod abut against each other; and the milling cutter is positioned through the threaded rod and the positioning round rod, so that the milling cutter deviates during machining.

The utility model relates to the technical field of numerical control machine tools, and discloses a noise reduction type multi-axis machining numerical control machine tool which comprises a first noise reduction plate, the top end of the first noise reduction plate is fixedly connected with a top plate, the bottom end of the top plate is fixedly connected with a plurality of heat absorption plates, and the bottom sides of the heat absorption plates are fixedly connected with two pressure reduction pads respectively. A bottom plate is fixedly connected to the top end of the pressure reduction pad, a second limiting plate is fixedly connected to the top end of the bottom plate, two guide rail bins are fixedly connected to the interior of the bottom of the second limiting plate, and a plurality of dampers are fixedly connected to the top end of the interior of the second limiting plate. According to the utility model, the vibration generated in the high-speed operation process of the operation bed and the high temperature emitted by the machine are effectively treated, the deviation in production caused by the vibration of the machine and the reduction of the service life of the machine and the potential safety hazard caused by the high temperature are effectively avoided, the service life of the machine is effectively prolonged, and the potential safety hazard is reduced; and the production quality and efficiency are improved.

According to the turning and milling combined machine tool, a Y-axis movable groove is formed in an outer box body, so that a spindle box body used for fixing a workpiece can be driven by a Y-axis power mechanism to reciprocate in the Y-axis direction in the Y-axis movable groove, multi-axis machining of the workpiece can be achieved without adding extra moving parts, and compared with a traditional machine tool, the turning and milling combined machine tool has the advantages that the machining efficiency is improved; the design also has the advantages of convenience in installation and easiness in adjustment of machining precision, and the geometric precision is not easy to lose and is convenient to adjust when the machine tool collides with the machine tool.

The invention discloses a multi-shaft machining device for machining special-shaped holes, and belongs to the field of multi-shaft machining, the multi-shaft machining device comprises a lifting plate, the top of the lifting plate is fixedly connected with output shafts of two air cylinders, the tops of the two air cylinders are both provided with supports, and the multi-shaft machining device further comprises a drill rod rotationally connected to the inner wall of the lifting plate; a liquid injection hole is formed in the top of the drill rod, one end of a liquid adding pipe is inserted into the inner wall of the liquid injection hole, and the other end of the liquid adding pipe is fixedly connected with a water tank; liquid in the water tank is injected into the liquid injection hole and the cavity through the liquid adding pipe by driving the water pump so as to reduce heat generated during rotation friction of the drill rod and a workpiece, the refrigeration piece can be driven to work during long-time high-frequency rotation so that the liquid in the cavity can form an ice body, and then the limiting ring can be rapidly and permanently cooled; and the strength of the drill rod can be improved, the toughness of the drill rod is guaranteed, it is guaranteed that the drill rod is not prone to damage, durability is improved, and machining of a plurality of shafts through long-time operation is facilitated.

The utility model provides a golf ball head pipe handle processing die which is assembled on a multi-shaft processing machine tool and used for fixing a golf ball head and processing a pipe handle of the golf ball head, the golf ball head is provided with a concave-convex surface, and a plurality of positioning convex parts are arranged on the pipe handle of the golf ball head in a protruding mode in the axial direction of the golf ball head. The device mainly comprises a first clamp, a second clamp, a positioning unit and a driving unit, the first clamp, the positioning unit and a base of the driving unit are respectively fixed on a multi-axis machining tool, and the driving unit controls a plurality of driving arms to penetrate through the base to enable the connected first clamp to move towards the second clamp. Therefore, the concave-convex surface of the golf ball head is clamped and limited on a plurality of clamping units arranged on a second clamping surface of the second clamp, the operation convenience is realized, and the accuracy problem of the traditional manual operation is solved.

The application belongs to the technical field of numerical control machining, and discloses a multi-axis machining center and a use method, which comprise a machining table, the top end of the machining table is provided with a portal frame, a dust suction assembly is arranged below the portal frame, and a mounting bracket is fixedly installed on the side wall of the portal frame; the dust suction assembly comprises a first dust suction pipe arranged below the portal frame, second dust suction pipes are uniformly installed on the outer wall of the first dust suction pipe, mounting blocks are fixedly installed on the outer wall of the first dust suction pipe, the mounting blocks are rotatably installed at the bottom end of the portal frame through rotating assemblies, one end of the first dust suction pipe is fixedly connected with a corrugated pipe, the top end of the corrugated pipe is fixedly installed with a connecting pipe, the connecting pipe is arranged in the portal frame, a treatment cavity is formed in the portal frame, and a dust suction pump is arranged on one side of the treatment cavity; when the multi-axis machining center works, the dust suction pump is started to make the treatment cavity have negative pressure, and the cutting chips generated in the machining process are sucked away through the second dust suction pipe, so that the safety during machining is improved, and the machining precision is ensured.

The invention discloses a machining method of a high-performance control surface. The machining method comprises the following steps: (1) machining a flat position of a bar; (2) cutting the bar material subjected to flat position milling into blocky blanks; (3) roughly grinding the blocky blank; (4) stress relief heat treatment; (5) finely grinding the block-shaped blank; (6) machining a first surface contour, a mounting hole and a positioning hole of the high-performance control surface in a five-axis machining center: arranging a multi-axis machining positioning tool, positioning the blocky blank on a first machining station, and pressing the blocky blank by a pressing block and a locking screw I to machine the first surface contour, the mounting hole and the positioning hole; (7) machining the second surface contour of the high-performance control surface in a five-axis machining center: enabling the unmachined surface of the semi-finished product of the high-performance control surface machined on the first machining station in the previous step to face upwards, mounting the semi-finished product of the high-performance control surface on a second machining station through a positioning hole, and machining the second surface contour of the high-performance control surface; and (8) performing linear cutting on the blank leftover materials at two ends of the high-performance control surface to obtain By adopting the method, the production efficiency can be improved, and the product percent of pass can be ensured.

The application provides a man-machine interactive multi-axis machining system, which comprises a machine tool, a carrier table and a material moving manipulator, the machine tool is used for machining parts, a worktable for fixing blank materials to be machined is arranged in the machine tool, a feeding and discharging hole is arranged on the top of the machine tool, and the feeding and discharging hole is located directly above the worktable; the carrier table is located outside the machine tool and is used for placing blank materials and parts that have been machined; and the material moving manipulator can pass through the feeding and discharging hole and move the blank materials on the carrier table to the worktable or move the parts that have been machined on the worktable to the carrier table. The man-machine interactive multi-axis machining system has the advantages of compact structure, high automation degree and production efficiency and reliable and stable work.

The present invention discloses a high-performance multi-axis automated control platform for component machining, which relates to the field of machining automation technology. It is used to address the problem that the assessment of component machining difficulty often relies on manual experience or simple rules, which can lead to strong subjectivity and inaccurate assessments. Existing manufacturing processes often rely on a large amount of manual intervention and experience, and lack a fully automated, intelligent decision support system. The machining difficulty of each component varies depending on the strength and hardness of the raw materials, as well as the number of machining steps and tolerance requirements. Parts are classified according to their difficulty, and parts that are difficult to machine are processed step by step. The system can automatically select appropriate strategies and algorithms based on actual machining requirements, thereby improving machining efficiency and quality, reducing manual intervention, and increasing production efficiency. The system can also make adaptive adjustments based on real-time data during machining, improving the precision and flexibility of the machining process.

The high-precision multi-axis machining rotary table comprises a base, a guide rail is arranged on the top of the base in the length direction of the base and used for bearing and guiding linear motion of a sliding part through the guiding effect of the guide rail, and a left side sliding seat and a right side sliding seat are symmetrically assembled on the guide rail and are both in sliding fit with the guide rail; the left sliding seat is used for bearing a first rotary machining related part, the right sliding seat is used for bearing a power output related part, a rotary supporting seat is installed on the top of the left sliding seat, and a first rotary workbench is rotationally connected to the rotary supporting seat. The P-level precision linear guide rail at the top of the base is used in cooperation with the sliding blocks at the bottoms of the left side sliding seat and the right side sliding seat, the high-precision linear motion effect of the sliding part along the guide rail is achieved, and gaps and deviation in the sliding process can be reduced through precise cooperation of the P-level precision guide rail and the sliding blocks; stable guiding is provided for bearing parts of the left sliding seat and the right sliding seat, and the basic precision of subsequent machining is guaranteed.

The invention provides laser multi-head automatic switching composite multi-shaft machining equipment, which relates to the technical field of mechanical manufacturing, and comprises a machining table, a center frame fixedly mounted on the machining table, a control panel fixedly mounted on one side of the center frame, a composite laser welding head arranged at the lower end part of the center frame, and an adjusting frame fixedly mounted at the upper end part of the machining table, a first adjusting table is slidably mounted on the adjusting frame, a second hydraulic oil cylinder is fixedly mounted on the side wall of the adjusting frame, a second electric telescopic rod is mounted at the output end of the second hydraulic oil cylinder and fixedly connected with the first adjusting table, and a first sliding groove is formed in the first adjusting table. According to the welding device, efficient, accurate, convenient and stable fixing and welding operation on solid circular pipes and hollow circular pipes is achieved, the manual operation difficulty and errors are reduced, the welding efficiency and quality are greatly improved, meanwhile, the welding device has high universality, the welding requirements of different types of circular pipes can be met, and the welding device is suitable for diversified production scenes.

The utility model discloses a group shaft device and system for single-shaft to multi-shaft machining, the group shaft device for single-shaft to multi-shaft machining comprises a single-shaft assembly and a multi-shaft assembly, the single-shaft assembly comprises an upper cover, a cutter handle shaft, a heat dissipation piece and a power gear, the cutter handle shaft is rotatably connected to the upper cover in a penetrating mode, and the power gear is connected to the cutter handle shaft in a penetrating mode. The heat dissipation piece is fixedly connected into the upper cover, and the power gear is fixedly connected to the outer wall face of the cutter handle shaft. The multi-shaft assembly comprises a lower base and a plurality of working shaft systems, and each working shaft system is rotatably connected to the lower base in a penetrating manner; the lower base is fixedly connected with the upper cover, the heat dissipation piece is clamped between the lower base and the upper cover, and the power gear is in transmission connection with each working shaft system. The utility model has the advantages of small size, strong versatility, high flexibility and the like.