81results about How to "Avoid machining errors" patented technology

The invention discloses a machining control method, device and system based on a five-axis machining machine tool and a medium. The method comprises the steps that geometrical characteristic parameters of a to-be-machined workpiece and tool characteristic information are obtained, a cutting force model is established according to the obtained geometrical characteristic parameters, and cutting force distribution conditions under different paths are calculated; in the cutting force model, based on the cutting force distribution condition and the geometric feature parameters, generating an optimal cutter path corresponding to the cutter feature information by using a path optimization algorithm; according to the generated tool path and tool feature information, establishing a simulation environment of the five-axis machining tool, and simulating motion states of the tool in different paths; in the simulation environment, setting a reward function including path smoothness and cutting force stability; using a reinforcement learning algorithm to optimize the fairness of the tool path, and generating a smooth tool path; verifying the generated smooth tool path in a simulation environment; and triggering a processing execution instruction. The machining precision and the surface quality are improved.

The invention relates to the technical field of spectacle lens processing, in particular to optical spectacle lens polishing equipment which comprises a bottom plate, a polishing unit and a locking mechanism. The rotating ring and the pushing plates and the clamping blocks on the rotating ring jointly clamp the circumferential face of the spectacle lens and conduct self-locking, so that the rotating ring and the spectacle lens are integrated, in the follow-up polishing face replacing process, the rotating ring is moved upwards and turned over, the spectacle lens is placed on the vertical plate, and the polishing face is replaced. In the process, the reference of the rotating ring is always taken as the reference of the spectacle lens, so that the problem that the processing time and the processing error are increased due to the fact that the reference of the spectacle lens needs to be repositioned in the process of replacing the polished surface is solved; the polishing device is suitable for the polishing machining process of two spherical surfaces of the spectacle lens, the swing path of the polishing plate is limited in the polishing process, and the polishing precision and stability are improved.

The invention discloses a machine tool clamping device for cylinder sleeve rough machining, and relates to the technical field of cylinder sleeve rough machining clamps, the machine tool clamping device comprises a center column and a center cylinder, and one end of the center column is fixedly connected to the side face of a partition plate. A main body structure of the device comprises a center column, an inner wall expanding and supporting assembly is arranged on the outer wall of the center column, an end face clamping assembly for clamping the end face of the cylinder sleeve is arranged on a right-angle supporting plate of a core assembly of the inner wall expanding and supporting assembly in the horizontal direction, and the end face clamping assembly and the inner wall expanding and supporting assembly are matched with each other when the outer wall of the cylinder sleeve is subjected to rough machining; the end face of the cylinder sleeve is clamped, and the problems that in the prior art, when a numerical control machine tool conducts rough machining on the cylinder sleeve, an inner supporting assembly is mostly adopted for expanding and supporting the inner wall of the cylinder sleeve, the cylinder sleeve is fixed to facilitate rough machining on the outer wall of the cylinder sleeve, and the end face of the cylinder is not clamped at the moment can be thoroughly solved. And when the air cylinder sleeve is subjected to axial force due to milling, the air cylinder sleeve is easy to transversely move along the inner supporting assembly, and machining errors are caused.

The invention discloses an automobile part grinding control system, which relates to the technical field of automobile part grinding control, and ensures that a grinding tool always keeps an optimal focal length and an accurate position in an operation process by accurately controlling a first focusing instruction, a first translation instruction and a first rotation instruction. A strain sensor is introduced to monitor the deformation of the workpiece in real time, and the deformation can be found in time and compensated in real time in the grinding process. The system can optimize temperature control management for different workpiece materials by considering heat conductivity coefficients k and heat conduction factors Rczz of different materials. Multiple factors of stress distribution, heat conduction, cooling efficiency and surface smoothness are considered by integrating the grinding quality index Mzqs, the machining quality grade is generated after comprehensive evaluation is provided for the grinding quality, parameters including the grinding depth, the workpiece feeding speed and the cooling system are adjusted according to the grade result, and therefore the machining quality of the final workpiece is improved.

The invention discloses an unmanned intelligent production system and method for compressor parts, and relates to the technical field of compressor part production, the unmanned intelligent production system comprises a feeding assembly, a conveying assembly and a grabbing assembly, the feeding assembly is used for feeding compressor parts, and the conveying assembly is used for conveying the compressor parts; according to the compressor part conveying device, a conveying plate is lifted upwards by starting a hydraulic rod, then a first bearing fork which is lifted at the same time can be separated from a supporting fork, compressor parts can be automatically transferred to the first bearing fork, and an output shaft of a forward and reverse motor rotates by starting the forward and reverse motor, so that a rotating disc is driven to rotate in a rotating groove; and the positions of the first bearing fork and the second bearing fork are exchanged, at the moment, the first bearing fork is located above the discharging fork, the second bearing fork is located above the supporting fork, the functions of the first bearing fork and the second bearing fork are the same, and the conveying efficiency can be improved by alternately using the first bearing fork and the second bearing fork.

The invention relates to the technical field of cutting machine protection, and discloses a linear cutting machine tool with a liftable waterproof cover, which comprises a machine tool body, the outer side of the machine tool body is sleeved with a peripheral cover, the top of the machine tool body is provided with a mounting baffle, the mounting baffle is sleeved with a waterproof cover body, and the top of the machine tool body is provided with a workpiece mounting seat. A lifting assembly is arranged on one side of the waterproof cover body. A cleaning assembly is arranged on one side of the top of the machine tool body. The lifting assembly is used for controlling the height of the waterproof cover body. And the cleaning assembly is used for cleaning sediments at the bottom of the mounting baffle. Compared with the prior art, the lifting assembly can adjust the height of the waterproof cover body according to needs, it is ensured that the waterproof cover body is always kept at the proper position in the machining process, good protection is provided, and the cleaning assembly is located on one side of the top of the machine tool body and specially used for cleaning sediments at the bottom of the mounting baffle and keeping clean; and normal operation of equipment is ensured.

The invention relates to an automatic U-shaped pipe punching machine and a U-shaped pipe punching machining method. An automatic punching machine for U-shaped pipes comprises a punching assembly and a storage assembly, the storage assembly comprises a storage frame used for limiting translation of stored pipes to be machined, the storage frame forms a storage space, and a positioning assembly and the punching assembly are arranged on the side of the storage space. A discharging opening communicating with the storage space is formed in the lower end of the storage frame, the positioning assembly comprises a supporting block located on the side of the discharging opening, a first limiting block and a positioning block, and the supporting block moves to the discharging opening or is laterally away from the discharging opening under the action of a first driver; the first limiting block is far away from or close to the material storage space under the action of the second driver, and the positioning block is close to the material storage space and extends into the pipe to be machined or far away from the material storage space under the action of the third driver. The punching device has the advantages that the production efficiency can be improved, and the punching machining precision is guaranteed.

The invention discloses a hollow glass polishing and press-fit fixing device, and relates to the technical field of glass manufacturing, the hollow glass polishing and press-fit fixing device comprises a hollow glass polishing device and a polishing control system, supporting plates are uniformly distributed and mounted on the outer side surface of a limiting and fixing assembly, and baffles are mounted on the outer side surfaces of the output ends of a plurality of electric telescopic rods; large round hollow glass slowly rotates, so that the edge is in contact with a grinding head for grinding, it is ensured that the large round hollow glass is always dynamic in the grinding process, the more uniform grinding effect is achieved, local excessive abrasion or uneven abrasion generated in the grinding process is avoided, the total grinding efficiency is improved, and the grinding efficiency is improved. By means of the grinding device, the working efficiency is higher, the shape is kept complete in the grinding process, the large round hollow glass can rotate more smoothly, the grinding process can be controlled more accurately, and the grinding device is particularly suitable for occasions needing high machining precision.

The invention discloses a tool path planning method and system for numerical control machining of a face gear, belongs to the technical field of gear machining, and solves the problems that multiple sets of tool interference and path optimization constraints are not considered and introduced in an existing method, and frequent pause and adjustment are caused in the machining process due to unreasonable tool interference and paths. The method comprises the steps of determining a machining mode of a to-be-machined gear based on parameters of the to-be-machined gear, detecting and adjusting an interference path of a milling cutter, outputting a primary adjustment path after primary adjustment, adjusting the milling posture of the milling cutter, and outputting a secondary adjustment path after secondary adjustment. According to the method, the initial machining path of the milling cutter in the multi-head cutter set is determined through a path calculation algorithm, and the optimal path without interference of the milling cutter is obtained. The milling precision of the milling cutter is guaranteed, collision or interference among multiple groups of milling cutters during machining is avoided, and the efficiency of the milling cutter is improved.

The utility model relates to an automatic workpiece carrying and stamping production line which comprises a control panel, a feeding machine used for automatically taking, placing and straightening workpieces, a stamping machine used for stamping the workpieces, a receiving belt conveying line used for conveying the workpieces and a material frame used for storing the workpieces. The swing arm manipulator is used for transferring a workpiece of the feeding machine to one stamping machine, transferring a workpiece of the stamping machine to another stamping machine or transferring a workpiece of the stamping machine to the receiving belt conveying line; the material frame is positioned at an outlet of the receiving belt conveying line; according to the production line, automatic carrying and automatic punching of the workpieces and automatic straightening of the positions of the workpieces are achieved, the requirement for manual operation is reduced, and the production efficiency is greatly improved. The automatic operation process can effectively save time and labor cost, and the overall efficiency of the production line is improved.

The application discloses a groove cutter for machining a turbocharger shell annular groove and a turbocharger shell, the groove cutter comprising a first cutter body, a second cutter body and a cutting edge. The stable clamping of the first cutter body lays a foundation for machining precision, avoiding machining errors caused by clamping deviation; the design of the chip removal angle A and the support angle B of the second cutter body not only solves the problem of chip removal, but also enhances the strength of the groove cutter, reduces cutting heat and groove cutter deformation; the cutting edge comprises a straight edge section and a semicircular edge, which controls the cutting contact area, reduces the cutting force and vibration, and protects the edge. The joint action of these designs not only makes the machining precision of the annular groove meet the assembly and use requirements of the shell, but also improves the service life of the groove cutter, reduces the number and time of tool replacement, reduces the machining cost, improves the overall machining efficiency, and fully meets the batch production requirements of the new energy automobile turbocharger shell.

This utility model relates to a detachable structure for a folding mop head, comprising a central plate; two folding plates hinged to opposite sides of the central plate, each folding plate having a snap-fit ​​groove on its bottom surface, the snap-fit ​​groove having a first insertion interface; and two back plates fixed to the top surface of the foamed mop head at intervals, each back plate having a snap-fit ​​that can be inserted into the first insertion interface and cooperate with the snap-fit ​​groove; the inlet diameter of the snap-fit ​​groove is larger than the inner diameter of the snap-fit ​​groove. The larger inlet diameter of the snap-fit ​​groove facilitates assembly of the snap-fit ​​and the slot overcoming machining errors.

The present invention belongs to the field of plasma cutting technology, and in particular to a millimeter wave therapeutic device plasma cutting device and method, comprising a base and a workbench fixed on the surface of the base, wherein a fixing component is installed inside the workbench. The device is provided with a fixing component, which can press and fix the four corners of the surface of the millimeter wave therapeutic device shell to ensure that the millimeter wave therapeutic device shell will not be displaced during the cutting process, and can provide stable supporting force from multiple directions, thereby avoiding processing errors caused by unstable position, ensuring the accuracy and consistency of the cutting lines, and preventing quality problems such as uneven cutting surface and dimensional deviation caused by shell shaking, which helps to improve the qualified rate and overall quality of the product. In addition, the whole process does not require human intervention and has a high degree of automation, which greatly improves the accuracy and timeliness of the operation, effectively avoids the problem of inaccurate positioning caused by human judgment delays or errors, and provides a strong guarantee for high-precision processing.

The utility model relates to the field of artificial board processing technology, concretely is artificial board processing equipment for forestry engineering, including processing platform, be provided with drive assembly on the processing platform, be provided with the clamping assembly for fixing board to the processing platform, the both ends of processing platform still are provided with the chip collection subassembly for collecting the processing chip. The device drives the driving disc to rotate with servo motor, and then makes two synchronous connecting rods drive synchronous board to move, makes multiple clamping rods can be accurate with the side edge of board abut, fixes the board fast and stably, effectively avoids the processing error caused because board shakes, improves the processing accuracy, guarantees the quality of artificial board, and through the flexible adjustment of front and back, left and right, up and down three directions, can accurately position processing assembly to any processing position of board, satisfies different processing demand, greatly improves the applicability and processing flexibility of equipment.

The invention relates to the field of sheet metal machining equipment, in particular to an anti-falling pin drilling positioning auxiliary device and drilling machining equipment. The anti-disengaging pin drilling auxiliary positioning device comprises a positioning seat, a horizontally-penetrating positioning hole is formed in the positioning seat, a hard alloy drill bushing is perpendicularly fixed to the top face of the positioning seat, and a bottom hole of the drill bushing intersects with the positioning hole; a horizontal clamping groove is formed in the positioning seat, and the position of the horizontal clamping groove corresponds to that of the anti-falling pin clamping groove of the anti-falling pin; a horizontal clamping groove blocking piece is installed in the horizontal clamping groove and is in micro-clearance fit with the anti-falling pin clamping groove. A chip groove is formed in the positioning seat and located under the drill bushing bottom hole and above the horizontal clamping groove blocking piece. The drilling tool is simple in structure and convenient to machine, the perpendicularity and the position precision of anti-falling pin drilling can be ensured, rotation in the machining process is prevented, and the machining efficiency is improved.

The invention relates to the technical field of riveting equipment, and discloses automatic wiring harness riveting equipment for assembling an automobile ABS wheel speed sensor, which comprises a rack, a wire box assembly is arranged at the rear end of the top side of the rack, and a wiring harness feeding mechanism is arranged on the top side of the rack or the front side of the wire box assembly; the top side and the left side of the wire box assembly are fixedly connected with framework feeding assemblies, and each framework feeding assembly comprises a material box, a second rotating motor, a rotating disc, a spiral frame and a feeding groove. The framework feeding assembly drives a rotating disc and a spiral frame through a second rotating motor, a framework is automatically conveyed to a feeding groove from a material box, automatic feeding of the framework is achieved, a first rotating motor in the wire harness feeding mechanism is matched with a wire shaft, automatic discharging of wire harnesses is achieved, the time of manual operation is shortened, the labor intensity of manual operation is reduced, and the production efficiency is improved. And the vertical air cylinder in the riveting mechanism can rapidly push the upper riveting die to be matched with the lower riveting die, and rapid riveting of the wire harness and the framework is achieved.

This utility model discloses a cutting device for producing motor shafts, relating to the field of motor shaft processing technology. The utility model includes a worktable, a cutting assembly and a rotating assembly mounted on the worktable. The cutting assembly includes a transmission frame rotatably mounted above the worktable via a bearing seat, a drive motor mounted at the tail of the transmission frame, a cutting tool mounted at the front of the transmission frame, and a cylinder for adjusting the rotation of the transmission frame relative to the bearing seat. The rotating assembly includes a transmission seat fixed to the edge of the worktable, a clamp fixed to the front of the transmission seat, a transmission belt for driving the rotation of the transmission seat, and a rotary motor. The motor shaft passes through the clamp and the transmission seat, and the clamping jaws of the clamp hold and fix the motor shaft to its circumference. This utility model, through the coordinated operation of the cutting assembly and the rotating assembly, achieves automatic rotation and precise cutting of the motor shaft, facilitating uniform and continuous cutting operations by the cutting tool.

The utility model relates to the technical field of numerical control machine tool workpiece feeding and discharging, and discloses a numerical control machine tool workpiece feeding and discharging device which comprises a supporting frame, a lifting motor, a bearing device and a pushing device. A bearing device is arranged in the supporting frame and correspondingly connected with the interior of the supporting frame in a sliding fit mode, a pushing device is arranged at the top of the bearing device and fixedly connected with the top of the bearing device through an adaptive screw, and a bottom output shaft of the lifting motor is correspondingly connected with the bearing device in a threaded fit mode. The loading and unloading device is internally provided with the bearing device and the pushing device which cooperate with each other, so that the loading and unloading speed of large workpieces can be greatly improved, manual carrying is reduced, and the safety of the whole operation process is greatly improved.

The utility model discloses a four-axis machine of a machining center, and relates to the technical field of four-axis machines. The machining center four-axis machine comprises a machining center, a fixing assembly and a replacing assembly, a bridge plate is arranged on the machining center, the fixing assembly is arranged on the bridge plate, the replacing assembly is arranged on the bridge plate, the replacing assembly comprises a fixing frame, sliding blocks, springs and clamping rods, and the two sets of sliding blocks are installed in the fixing frame in a sliding mode and are symmetrically distributed; a spring is fixedly installed on one side of the sliding block, a clamping rod is fixedly installed on the other side of the sliding block, and the other end of the clamping rod penetrates through the fixing frame and extends into the connecting plate. Through the arrangement of the replacement assembly, workpieces of different shapes and sizes possibly need different clamping modes and force distribution, the most suitable clamping mode can be selected according to the specific requirement of each workpiece by replacing the clamping fixing plate, and the flexibility can ensure that each workpiece can be stably and reliably clamped; and machining errors or workpiece damage caused by improper clamping are avoided.

The application discloses a numerical control gantry milling machine and belongs to the technical field of machine tools, which comprises a bearing plate, a linear module fixedly installed on the upper surface of the bearing plate, a bearing plate fixedly installed on the upper surface of a moving block of the linear module, gantry frames fixedly installed at both ends of the upper surface of the bearing plate, a liquid collecting and spraying mechanism fixedly installed between the upper halves of the two sets of gantry frames, and a cooling mechanism fixedly installed between the lower halves of the two sets of gantry frames and connected with the liquid outlet end of the liquid collecting and spraying mechanism. The application realizes a high-efficiency cooling liquid closed-loop circulation system through the design of the cooling mechanism and the liquid collecting and spraying mechanism, reduces the material cost and environmental protection pressure, guarantees the stable cooling effect, and realizes the accurate cooling of the cutting area through the ball tube rotation adjustment and the double-path nozzle design.

The utility model relates to a headlamp processing jig, which belongs to the technical field of headlamp processing and comprises a base and a top frame fixedly connected to the top of the base, the top of the base is provided with a jig assembly for headlamp processing, and the jig assembly comprises a jig shell fixedly connected to the top of the base. A bearing plate is fixedly connected between the left side wall and the right side wall in the jig shell, three sets of elastic supporting pieces and three sets of contact sensors are fixedly connected to the inner bottom wall of the jig shell, a connecting plate is fixedly connected to the top ends of the elastic supporting pieces, and a positioning head is fixedly connected to the top of the connecting plate. The bottom of the connecting plate is fixedly connected with a connecting shaft, and the bottom end of the connecting shaft is fixedly connected with a contact plate. According to the headlamp processing jig, when all the contact sensors are triggered, the indicating lamp is lightened to indicate that the placement position of the headlamp is correct, and if part of the contact sensors are not triggered, the indicating lamp is not lightened, so that an operator can be timely reminded of deviation of the placement position of the headlamp.

The utility model relates to a kind of laundry dryer tripod finished product packaging production line, including parallel belt conveying line, outlet positioning frame and protective sleeve installation device from front to back in turn, the outlet positioning frame is arranged in the horizontal outlet of parallel belt conveying line, the outlet positioning frame is equipped with the feeding and discharging robot of clamping tripod between protective sleeve installation device. The utility model realizes the consistent of each tripod foot position by the outlet positioning frame set in the outlet of parallel belt conveying line, ensures the fixed position of feeding and discharging robot clamping, avoids the inconsistent of subsequent protective sleeve installation device clamping tripod foot position to produce processing error, realizes the automatic sleeve of tripod shaft with protective sleeve, save time and labour, release labour, greatly improve the installation efficiency of protective sleeve, adapt to tripod automation production.

The utility model provides a kind of machining piece displacement monitoring device, the displacement monitoring device includes control device, first alarm device, displacement detection device, power supply battery and second alarm device.Control device includes control box and controller, and controller is set in control box.First alarm device is set on control box, and first alarm device is electrically connected controller.Displacement detection device is set to the side of machining piece, and displacement detection device is electrically connected controller, and power supply battery is electrically connected controller.Second alarm device is wirelessly connected control device, and it is located the control panel side of machine tool.The displacement monitoring device overcomes the hysteresis of traditional measurement method, ensures that any small displacement change in processing can be captured in time.Double alarm mechanism not only improves the reliability of alarm, effectively avoids the safety accident caused by alarm signal not being perceived in time.

This invention discloses a method and system for stripping the semiconductive layer of a high-voltage cable, belonging to the field of high-voltage cable stripping. The method includes: obtaining reference parameters for the electrical characteristic difference between the semiconductive layer and the main insulation layer of the target high-voltage cable, and setting interface determination conditions; controlling the stripping tool to feed radially along the cable, and acquiring real-time AC impedance information at the contact position between the stripping tool and the cable stripping surface during the stripping process; comparing the real-time AC impedance information with the interface determination conditions, and determining the interface position between the stripping tool and the main insulation layer when the interface determination conditions are met; after reaching the interface position, generating a feedback signal based on the real-time AC impedance modulus and its rate of change, and adjusting the feed depth and / or feed speed of the stripping tool to make the stripping tool follow the interface position until stripping is completed. This invention improves the accuracy and consistency of semiconductive layer stripping.

The utility model belongs to the technical field of metal processing, and particularly relates to a chamfering machine push rod which comprises a chamfering linear table and a second sliding frame, one end of the top of the chamfering linear table is fixedly connected with a fixing frame, the fixing frame is elastically connected with a first sliding frame through a spring column, and the middle of the first sliding frame is slidably connected with the push rod. A fixed plate is fixedly connected to the outer wall of one side of the push rod, a rotating handle is rotatably connected to the top of the fixed plate, a lead screw is fixedly connected to the position, located in the fixed plate, of one end of the rotating handle, a sliding ring is in threaded connection with the outer wall of the rotating handle, and the sliding ring is in sliding connection with the fixed plate. The workpiece can be conveniently pushed through sliding of the push rod, meanwhile, the workpieces of different sizes can be adaptively clamped and fixed, the workpieces are prevented from shaking in the sliding machining process, machining errors caused by shaking are prevented, and chippings generated during machining can be prevented from splashing and adhering to the hands of people.

The invention belongs to the field of semiconductor equipment production, and particularly relates to a semiconductor equipment aluminum alloy component forging and pressing device and method based on positioning, the semiconductor equipment aluminum alloy component forging and pressing device comprises a bottom plate, a fixing seat and a second material guiding frame are welded and fixed to the bottom end face of the bottom plate, and a supporting rod is welded and fixed to the top end face of the bottom plate; a fixing plate is fixedly welded to the supporting rod, a top plate is fixedly welded to the top end of the supporting rod, a pretreatment assembly is installed on the top plate, a self-positioning feeding assembly is installed on the fixing plate, a first hydraulic rod is fixedly installed on the top plate, and an upper mold plate is fixedly connected to the bottom end of the first hydraulic rod; and a feeding groove is formed in the fixing plate in a penetrating mode, a second hydraulic rod is fixedly installed on the bottom plate, and the problem that in the actual working process of existing aluminum alloy component forging and pressing equipment for the semiconductor equipment, automatic and stable positioning feeding and automatic demolding work cannot be conducted on aluminum alloy component blanks is solved.

The utility model discloses a turnover type clamping mechanism for machining automobile spokes, which comprises a fixed disc and is characterized in that one side of the fixed disc is fixedly connected with a circular truncated cone, the middle of one side of the circular truncated cone is rotatably connected with one end of a rotating shaft, the other end of the rotating shaft is fixedly connected with a clamping assembly, and the clamping assembly is connected with a turnover limiting assembly; the overturning limiting assembly comprises a two-way electric push rod, moving blocks, a first connecting rod, a second connecting rod, a limiting rod and a limiting block, the two-way electric push rod fixes the rotating shaft, the ends of telescopic rods at the two ends of the two-way electric push rod are fixedly connected with one ends of the moving blocks respectively, and the other ends of the moving blocks are fixedly connected with symmetrical fixing rods respectively. The utility model relates to the technical field of spoke machining, in particular to a turnover type clamping mechanism for automobile spoke machining. The spoke overturning device can limit and clamp spokes of different sizes and overturn the spokes, and is simple to operate and convenient to use.

The utility model discloses an automatic production line for connecting rod production belongs to connecting rod rough grinding technical field, and the side of fixed base is equipped with production line support, and the upper end both sides of this production line support are equipped with ball screw drive assembly, and the lateral wall of production line support is equipped with second drive assembly, and second drive assembly is connected with ball screw drive assembly through transmission belt, and the movable seat of two ball screw drive assemblies is equipped with sliding support, and the inner wall of sliding support is equipped with slide rail. The connecting rod positioning and clamping mechanism realizes accurate positioning and firm clamping of the connecting rod to be processed with the help of T type sliding slot, T type key and abutting assembly, improves the machining stability and precision, avoids the machining error, and the abutting block can be replaced to adapt to different size connecting rods. The connecting rod polishing mechanism realizes accurate polishing to the connecting rod through servo motor, transmission gear box and grinding head cooperation. Because the connecting rod has been accurately positioned and clamped, the grinding head can be in constant contact with the connecting rod surface when rotating and polishing, and ensures that polishing is uniform and consistent.

This invention provides a mass production machining device for door pillars, belonging to the field of door pillar mass production machining technology. It includes a base, with mounting brackets mounted on the top of the base. The mounting brackets have equidistant first limiting grooves and equidistant mounting grooves on their tops. Four mounting brackets are equidistantly arranged on the base, and one mounting bracket located on one side edge of the base has equidistant first limiting blocks on its top. This invention, by setting up an auxiliary positioning mechanism and a limiting and fixing mechanism, allows the eight first sliding grooves to be quickly positioned to the machining position on the top of the base in one go, avoiding multiple alignment adjustments and improving positioning efficiency. Furthermore, the limiting and fixing mechanism further limits and fixes the transported profile body, ensuring that the profile body remains stable, does not shift, and does not shake during processing, ensuring consistent processing benchmarks.