25results about How to "Guaranteed repeat positioning accuracy" patented technology

The invention discloses a station conversion driving mechanism for water ice content detection of a lunar soil water molecule analyzer. The station conversion driving mechanism comprises a worm assembly, a worm gear, a worm gear case, a first flat key, a rotating shaft, a first bearing pressing ring, a first bearing, a worm gear fixing ring, a screw, a second flat key, a second bearing, an encoder, a second bearing pressing ring and an encoder seat. Worm gear and worm meshing transmission is utilized, the rotating shaft is driven to rotate by means of the supporting effect of the first bearing and the second bearing, and driving force is provided for station conversion of a sample support assembly with a hole shaft matched on the transmission shaft by means of radial limiting of the first flat key on the transmission shaft. The mechanism is compact in structure, light in weight, wide in use temperature range and large in output torque, and can be used as a driving mechanism for multi-sample support station conversion of the lunar soil water molecule analyzer.

The utility model discloses a high-precision laser welding machine which comprises a main machine body, a moving device is installed on the upper portion of the main machine body, the moving device comprises an X-axis lead screw machine, the lower portion of the X-axis lead screw machine is fixedly connected with the main machine body, and a Y-axis lead screw machine is fixedly connected to the upper portion of a sliding seat of the X-axis lead screw machine. A Z-axis lead screw machine is fixedly connected to the upper portion of a sliding base of the Y-axis lead screw machine. A sliding connection structure of the rectangular sleeve and the rectangular supporting block is introduced into the fine adjustment device, the transverse installation frame and the transverse supporting rod are matched, and the fine adjustment function of the laser welding head is achieved. By means of the innovative design, the adjusting process is simplified, the adjusting precision is improved, and the stability and the repeated positioning precision of the laser welding head after adjustment are guaranteed. In this way, the device has the advantage that the device can be quickly recovered to a set accurate position even after long-time operation.

The utility model provides a diesel engine cylinder cover hole system integration auxiliary machining tool which comprises a tool body, a first positioning boss is machined in the center of the top face of the tool body, and a second positioning boss is machined in the center of the first positioning boss. A plurality of first screw rod mounting holes are uniformly formed in the top of the second positioning boss in a circumferential manner; different series of first stepped holes and second stepped holes which are uniformly distributed are formed in the top of the tool body and located on the periphery of the first positioning boss; a groove arranged in the radial direction is machined in the top of the tool body, and the groove penetrates through partial areas of the first positioning boss and the second positioning boss. The tool can be used for positioning and supporting the diesel engine cylinder cover on a numerical control boring C shaft, so that all hole series of the cylinder cover can be conveniently and quickly machined, and the tool is easy to operate, stable and reliable; and the repeated positioning precision is ensured through the auxiliary machining tool.

A truss type logistics transfer exchange system belongs to the technical field of transfer tools and comprises a truss type logistics trolley and an exchange worktable, and a synchronous rotating shaft is supported on the top surface of a lifting frame through two mounted bearings; symmetrically-distributed mechanical arms are arranged at the two ends of the synchronous rotating shaft correspondingly, connecting rods are hinged between the two symmetrically-distributed mechanical arms and the synchronous rotating shaft, and the mechanical arms are hinged to the bottom of the lifting frame; a hydraulic oil cylinder for driving the synchronous rotating shaft to rotate is arranged on one side of the synchronous rotating shaft; the synchronous rotating shaft is driven by the hydraulic oil cylinder to rotate to drive the connecting rods on the two sides to link the mechanical arm to open and close. The hydraulic oil cylinder guarantees sufficient grabbing force, and the situation that arms are not synchronous is avoided; the workpiece horizontally moves for a long distance along the machine tool body, is matched with the exchange workbench to vertically lift in the truss type logistics trolley and is parallel to the truss type logistics trolley along the machine tool body, so that the position switching of the workpiece between the machine tool body and the machine tool workbench is realized, and the repeated positioning precision of movement is ensured.

A PCB loading device, comprising a separable loading carrier plate and a base module. The loading carrier plate is provided with a plurality of placement slots for placing PCBs. Each placement slot is provided with a clamping assembly at the clamping angle. The clamping assembly comprises a clamping block and a return spring. The clamping block is slidingly connected to the loading carrier plate and has a movement tendency towards the placement slot. The clamping block is provided with a driving hole. The base module comprises a base and a fixed platform. A driving plate is slidingly connected below the platform. The driving plate is provided with a driving pin. The driving pin is inserted into the driving hole after sequentially passing through the avoidance holes of the platform and the carrier plate. The driving plate is connected to the base through a driving spring and is provided with a stop block which is movably connected to the driving motor execution end. The utility model realizes the synchronous control of multiple clamping mechanisms through single motor driving, has the functions of automatic clamping and loosening, adopts spring grading locking, improves the positioning accuracy, realizes self-centering positioning in combination with the V-shaped chuck, and effectively improves the positioning accuracy and clamping efficiency of the PCB.

The invention belongs to the technical field of metal wire feeding and printing, and relates to a quick-release wire feeding structure suitable for small-diameter metal wires. The wire feeding structure comprises a main body structure frame assembly serving as an installation reference and a force bearing main body of the whole mechanism; the quick-release wire feeding seat assembly is arranged in the main body structure frame assembly, and a through wire feeding channel is formed in the quick-release wire feeding seat assembly; the wire feeding shaft driving assembly is installed in the shaft hole of the main body structure frame assembly and used for driving the metal wire to move along the wire feeding channel; the wire feeding head assembly is installed at the outlet end of the main body structure frame assembly and used for guiding the metal wires; and the quick-release wire feeding seat assembly can be integrally taken out of and loaded into the main body structure frame assembly. The problems that operation and maintenance convenience is poor, and wire feeding stability and reliability are insufficient are solved.

The utility model discloses a glass measuring vessel liquid level automatic constant volume device, including needle control module, clamping module, visual control module, pump liquid module, liquid storage tank and controller. Needle control module includes the thick needle and thin needle of switchable position, pump liquid module and liquid storage tank between the pipeline connection, needle control module and pump liquid module between the pipeline connection, and pump liquid module draws liquid from the liquid storage tank and injects into needle control module, needle control module, visual control module, pump liquid module are electrically connected with controller, and the needle of needle control module is lifted and switched through the controller control, and the pump liquid module is controlled to inject liquid to needle control module through the controller, and the visual control module is controlled to shoot liquid level and handle imaging through the controller. The device uses the double needle design of thick needle and thin needle, and the thick needle realizes rapid liquid injection, and the thin needle realizes accurate constant volume liquid surface, reaches the uniform speed microinjection under the liquid, real -time detection liquid level continuous change, realizes the capacity accurate constant volume.

This utility model relates to the field of positioning fixture technology and discloses a positioning fixture for CNC machining of stove bottom cups, including a base, a U-shaped clamp, an inner cylinder, and a sleeve. Columns are fixedly connected to the four corners of the upper surface of the base. This positioning fixture for CNC machining of stove bottom cups uses a U-shaped clamp slidingly engaged with a sliding groove and a rotating arm adjusting rod structure. Through a double locking mechanism of fastening bolts one and two, it can achieve multi-angle clamping adaptation and flexibly adjust the spatial position of the positioning chuck by sliding the adjusting rod to meet the clamping requirements of stove bottom cups of different specifications. The sleeve's built-in guide rod and the precise fit with the sliding groove form a longitudinal adjustment reference. Combined with the rapid fine-tuning of the adjusting nut and the spring buffer mechanism, it maintains positioning stability while ensuring adjustment accuracy. The hinge structure between the outer cylinder and the inner rod, combined with fastening bolt three, supports dynamic adjustment of the rotating arm's pitch angle, and is coupled with a vertical power system driven by a hydraulic rod.

The utility model belongs to the field of helical gear shafts, particularly relates to a helical gear shaft structure with an adjusting function, and aims to solve the problems that a transmission assembly needs to be completely disassembled during axial adjustment of an existing traditional helical gear shaft structure, axial fixation depends on a single threaded connection structure, and a radial limiting mechanism and an axial fixing device are mutually independent. Comprising a mounting shaft, and the outer wall of the mounting shaft is provided with a plane; the connecting sleeve is arranged outside the mounting shaft in a sleeving manner; the connecting sleeve is sleeved with the bevel gear body in a sliding mode, and a strip-shaped hole is formed in the outer wall of the connecting sleeve. A double-protective-sleeve linkage unlocking structure is adopted, the protective sleeves are rotated to drive the limiting strip-shaped plate to synchronously and transversely move, and the braking state of the pressing plate is rapidly relieved; by means of the three-stage unlocking mechanism of the protective sleeve, the pressing plate and the fixing screws, the steps of a traditional adjusting process are compressed, maintenance personnel do not need to use special tools, and all unlocking operation can be completed only by manually rotating the protective sleeve.

The invention discloses a control method for handstand lathe spindle workpiece exchange, and belongs to the technical field of control and use of electromechanical matching of numerical control machine tools. A main shaft is driven by double servo motors mechanically, and a workpiece to be machined needs to be exchanged to an OP20 after machining is completed through an OP10. In order to ensure the repeated positioning precision, servo main shaft control is adopted electrically, self-defined storage parameters, monitoring state data resources and recognition of coordinate axis and PLC signal states are utilized electrically, and movement of hardware such as main shaft coordinate axes and the like is carried out according to corresponding control instructions and machining process execution steps by judging the data. The method has the advantages that according to the combination of the strategy and the built-in instructions of the system, the axis coordinate data, the application system functions and the related parameters are found by combining the mechanical design and the machining technology, the NC program can monitor and judge the data, and the functional requirements of different numerical control systems can be safely and reliably met.

The embodiment of the present invention provides a high-speed and high-precision single-drive gantry structure, including an equipment frame, a first crossbeam assembly and a second crossbeam assembly, wherein the first crossbeam assembly and the second crossbeam assembly are slidably arranged on the equipment frame, and the equipment frame includes a first active side guide rail and a first driven side guide rail, and the first crossbeam assembly is slidably connected to the first active side guide rail and the first driven side guide rail at both ends along the X direction. The high-speed and high-precision single-drive gantry structure provided by the present invention can carry the first crossbeam assembly and the second crossbeam assembly at the same time. Here, the two-layer structure has good casting stability and meets the processing technology requirements for high precision requirements, and greatly reduces the precision loss caused by the impact of the acceleration and deceleration process during high-speed movement.

The invention discloses an angle-fixed cache frame adaptable to multi-size collecting and winding drums, and relates to the technical field of warehouse logistics equipment.The angle-fixed cache frame comprises a rack and a controller, an adjusting mechanism is arranged on the rack, a restraining mechanism is arranged on the adjusting mechanism, and the adjusting mechanism comprises a mounting box. According to the angle-fixed temporary storage frame capable of being matched with the multi-size winding drums, the temporary storage frame can be accurately and automatically matched with the winding drums with different lengths and diameters through the transverse adjusting module composed of a double-shaft servo motor, a threaded rod, a threaded block and a push rod and the longitudinal adjusting module for driving the mounting platform to ascend and descend through an air cylinder; an operator only needs to input parameters through the controller, automatic adjustment of the width and the height of the buffer frame can be completed, the adaptability of equipment to collecting drums of different specifications is greatly improved, the trouble that tools are frequently replaced or adjusted due to product model changing is avoided, and the space utilization rate and the production flexibility are remarkably improved.

The utility model discloses a novel eight-station tool magazine indexing mechanism, and belongs to the technical field of machinery. The device comprises an index plate, a cutter head, a cam mechanism, rollers, a speed reducer and a motor, the index plate is installed above the cutter head, the index plate and the cutter head are coaxially installed, a plurality of rollers which are evenly spaced are installed on the edge of the top of the index plate, and the rollers are arranged on the index plate in the circumferential direction; a motor is arranged above the index plate, the driving end of the motor is connected with a cam mechanism through a speed reducer, a cam groove is formed in the cam mechanism, and one roller is located in the cam groove in a matched mode. According to the utility model, the eight-station tool magazine of the vertical turning machining center can realize quick, stable, reliable and accurate tool changing, and can realize random tool changing.

The utility model discloses a steel ball protruding amount measuring gauge of a positioning male pin for an exchange workbench, which comprises a base, an ejector rod, a spring, a cylindrical pin, a side plate and a measuring block, the ejector rod vertically penetrates through the base and is provided with an ejection part, the side plate is detachably fixed on one side of the base, the measuring block is detachably fixed on the inner side of the side plate, and the cylindrical pin is arranged on the spring. The inner side face of the measuring block is a measuring plane facing the ejector rod, the height of the measuring plane is matched with the height of a steel ball after a positioning male pin to be measured is installed, the cylindrical pin is transversely inserted into the bottom of the ejector rod, one end of the cylindrical pin extends out of the ejector rod in the radial direction, and an upward-concave groove is formed in the bottom of the base and arranged on one side of the ejector rod. The spring sleeves the outer side of the push rod and is pressed by the push rod and the pedestal, and the upper part of the pedestal is provided with an installation hole which is used for installing and fixing the installation outer circle of the to-be-tested positioning male pin in a clearance fit manner. The gauge is simple in structure, low in cost, convenient and fast to operate, high in measurement precision and capable of meeting the requirement for measuring the protruding amount of the steel balls in the batch machining process of the positioning male pins.

The invention discloses a PCB collecting machine with an automatic edge searching and positioning mechanism, and relates to the technical field of PCB conveying. The conveying roller set is arranged on the machine base and used for conveying a PCB; the baffle is arranged at the output end of the conveying roller set; the edge searching and positioning mechanism is arranged at the gap of the transmission roller group; the plate collecting assembly is provided with a plate collecting end, and the plate collecting end is provided with an adsorption assembly; wherein the edge searching positioning mechanism is used for positioning the position of the PCB, the adsorption assembly is used for finely adjusting the adsorption position according to the position of the PCB, and the PCB can be prevented from being damaged to the maximum extent in the mode.

The invention relates to the technical field of alloy boring cutters, and particularly discloses an alloy cutter assembly and a cutter holder, the alloy cutter assembly comprises a cutter body, the middle part of which is provided with a guide hole; the movable shaft is slidably connected in the guide hole of the cutter body, one side of the movable shaft is fixedly connected with a threaded sleeve, the guide hole of the cutter body is fixedly connected with a mounting ring, the mounting ring is rotatably connected with a threaded rod, and the threaded rod is in threaded connection with the threaded sleeve; the adjusting knob is fixedly connected to the threaded rod, a hexagonal blind hole is formed in one end of the threaded rod, a sliding rod is slidably connected to the middle of the threaded rod, a blocking block is fixedly connected to one end of the sliding rod, and the blocking block slides in the hexagonal blind hole of the threaded rod; and the limiting disc is fixedly connected to the other end of the sliding rod. Through cooperation of the arc-shaped plate and the limiting disc, the direct adjusting behavior is physically prevented. Abnormal abrasion of threads between the threaded rod and the threaded sleeve caused by directly and forcibly rotating the adjusting knob due to forgetting or negligence of a correct process is avoided.

The utility model relates to a glove embryo mouth supporting device and belongs to the glove production technical field. It aims at solving the problem that the existing single drive mouth supporting device cannot be adjusted horizontally and the die sleeve accuracy is poor. The device comprises a moving platform, a first movable part and a second movable part slidingly arranged on the platform, and a plurality of support plate assemblies. The left support plate and the right support plate of the support plate assembly are arranged on the first movable part and the second movable part respectively. The first drive mechanism and the second drive mechanism are arranged independently and are used for driving the first movable part and the second movable part to move respectively. By independently controlling the two drive mechanisms, the center line of the opening of the support plate assembly can be horizontally offset when the glove embryo is opened, and the position can be adjusted in real time. The utility model breaks the rigid structure of the traditional device through the design of double drive independent control, can accurately compensate the position when the die sleeve fails, thereby significantly improving the die sleeve success rate and the production efficiency and enhancing the adaptability of the equipment.

According to the compact discharging jacking device for the light spare and accessory parts, a jacking mechanism is arranged on a lower rack and drives an upper rack to move up and down in the vertical direction; an element box is arranged on the upper end face of the universal bearing base, and the lower end face of the universal bearing base is rotationally connected with the upper end of the upper rack through a horizontal rotating shaft. The rotating mechanism is arranged on the upper rack and drives the universal bearing base to rotate relative to the upper rack through up-down stretching of the output end of the rotating mechanism. The rotating mechanism can control the universal bearing base to incline by a certain angle on the manual discharging position; the limiting assembly can be used for guaranteeing the bearing face levelness and the repeated positioning precision when the universal bearing base recovers to the discharging completion position after discharging is completed. The jacking mechanism can ensure the linear precision and stability of the device in the switching process of the equipment operation position and the manual operation position. And the internal space of the rack is fully utilized, so that the overall structure is high in integration level and small in occupied space, and manual discharging operation and equipment material taking operation can be efficiently linked.

The application discloses a reverse type transition groove row planetary roller screw, which comprises a screw rod, a plurality of first annular grooves are arranged on the outer wall of the screw rod and are parallel to the axial direction of the screw rod, the plurality of first annular grooves are divided into a plurality of annular groove groups, and the spacing between adjacent annular groove groups is d; a nut is coaxially arranged on the outer wall of the screw rod; a plurality of rollers are annularly arranged between the screw rod and the nut, the plurality of rollers are installed on the outer wall of the screw rod through a planet carrier, the axial direction of the rollers is parallel to the axial direction of the screw rod, each roller is provided with a transmission section, the transmission section is provided with a plurality of second annular grooves which are parallel to each other, the transmission section of each roller is oppositely arranged with one annular groove group, and the rollers are meshed with the nut and the screw rod through the transmission sections. The annular grooves of the rollers are matched with the annular grooves of the screw rod, the annular grooves of the rollers are matched with the threads of the nut, and the spacing between the plurality of annular grooves on the screw rod is offset, so that the planetary roller screw is not self-locked and runs at a constant lead.

The application relates to the technical field of terminal feeding, and particularly discloses a terminal feeding device for automobile wire harness production, which comprises a feeding structure, a guiding conveying device and a clamping feeding device. The feeding structure can orderly arrange and directionally convey terminals. The guiding conveying device is arranged at the bottom top surface rear end center of the feeding structure. The guiding conveying device can limit the terminals, buffer the feeding impact, stepwise transmit and accurately limit, and guarantees the stable and orderly conveying process. The clamping feeding device is arranged at the bottom top surface right end rear corner of the feeding structure. The clamping feeding device can clamp, limit and fix the terminals in the output end of the guiding conveying device, and accurately position and feed the terminals. The application improves the high precision, high stability and strong versatility of terminal conveying, can effectively reduce the terminal damage and jamming failure, and is suitable for the flexible production and accurate operation of terminals of multiple specifications.

This application relates to the field of machining technology and discloses a horizontal milling machining center, including a first guide rail, a second guide rail, and a tray. A milling body is mounted on the first guide rail, and a movable stage is mounted on the second guide rail. The movable stage is rotatable and used to fix the workpiece to be machined. The tray is detachably mounted on the movable stage. This horizontal milling machining center uses vertical and horizontal linear motion instead of traditional arc-shaped rotary motion to achieve tray exchange. Combined with an anti-contamination conical positioning structure and the significant differences in tray positioning states, it fundamentally solves the defects of existing technologies such as easy collisions during tray exchange, unstable positioning accuracy, and poor sensor reliability.

The application discloses a structure and method for controlling the coating weight of a patch, and belongs to the technical field of patch processing. The structure comprises a rack, a coating roller arranged on the rack, a coating assembly arranged in front of the coating roller, the coating assembly being movably connected to the rack and a coating gap being formed between the coating assembly and the coating roller, and a base material of the patch passing through the coating gap; a thickness gauge is arranged behind the coating roller, and the thickness gauge reciprocally moves to detect the thickness of the patch after coating; an adjusting mechanism is further arranged on the rack, the adjusting mechanism comprising an eccentric wheel and a distance meter, the eccentric wheel being rotatably arranged on the rack and being in contact with the coating assembly, and the distance meter being used for measuring the distance between the coating mold and the coating roller. The structure and method can adjust the coating gap according to the coating thickness of the patch, so as to ensure the stability of the coating weight in the production process of the patch; and the repeated positioning precision is high, and the coating gap can be quickly restored to a suitable gap after the coating gap changes, so that the consistency of the coating thickness of the patch is good.

The invention discloses an assembling and adjusting device for a recoverable unlocking support of an ultra-large-diameter space optical remote sensing camera. The assembling and adjusting device comprises a supporting tool supported on the back face of the unlocking support. The connecting rods are arranged on the two sides of the unlocking bracket in parallel; the upper connecting rod screw penetrates through the connecting rod and the upper bracket and is connected with the wedge block; the lower connecting rod screw penetrates through the connecting rod and the lower bracket and is connected with the wedge block; the locking screw penetrates through the side wall of the supporting tool and is connected with the connecting rod, and the locking screw is tightened to drive the connecting rod to be locked with the upper connecting rod screw and the lower connecting rod screw, so that the wedge blocks are tightly matched with the upper support and the lower support respectively. The elastic potential energy of an elastic guiding and space control system is overcome through an assembling and adjusting method of a fastening screw rod and a connecting rod; through the tolerance design of the upper connecting rod screw, the lower connecting rod screw, the upper support and the lower support preformed hole, the positioning precision of the four wedge blocks and the repeated positioning precision after the unlocking support is disassembled and assembled can be guaranteed, and the overall rigidity of the unlocking support is guaranteed.

The invention discloses a structure and a method for controlling the gluing gram weight of a patch, and belongs to the technical field of patch processing. Comprising a rack, a gluing roller is arranged on the rack, a gluing assembly is arranged in front of the gluing roller, the gluing assembly is movably connected to the rack, a gluing gap is formed between the gluing assembly and the gluing roller, and a base material of a patch penetrates through the gluing gap; a thickness gauge is arranged behind the gluing roller, and the thickness gauge reciprocates to detect the thickness of the glued patch; an adjusting mechanism is further arranged on the rack and comprises an eccentric wheel and a distance measuring instrument, the eccentric wheel is rotationally arranged on the rack and is in contact connection with the gluing assembly, and the distance measuring instrument is used for measuring the distance between the gluing mold and the gluing roller. According to the structure and the method, the gluing gap can be adjusted according to the gluing thickness of the patch, so that the gram weight stability in the patch production process is ensured; and moreover, the repeated positioning precision is high, and the gluing gap can be quickly recovered to a proper gap after being changed, so that the consistency of the thickness of the adhesive layer of the patch is good.

The present application relates to the technical field of test fixture, especially to a 5G communication module rapid plug-in electrical performance test fixture and its using method, which comprises a test platform, a test plug and a communication module placement table for installing the communication module, the test platform is provided with the communication module placement table on one side, a navigation channel groove is opened on the other side of the test platform, a moving unit is installed in the navigation channel groove through a threaded rod, a connecting unit is fixedly connected to the upper end of the moving unit, a plurality of buffer units are installed on the upper end of the connecting unit, a test plug for plugging with the communication module is installed on the upper end of the buffer unit, and a driving motor is installed on the side of the test platform; the moving unit comprises a sliding block, a center hole is opened in the middle of the sliding block, and a piston hole for placing a piston rod is opened on the upper end of the sliding block. In the present application, the problems of bending and breaking of the test plug, tearing of the module interface pad or whole scrap are avoided, the fault tolerance and safety of the fixture are significantly improved while maintaining the efficiency of automatic rapid plug-in.