52results about How to "Avoid Interfering Collisions" patented technology

The invention belongs to the field of metal profile straightening and relates to a large aluminum profile straightening machine automatic lifting and feeding mechanism which sequentially comprises a bottom frame, a middle frame, an upper frame and a swinging mechanism from bottom to top; a plurality of limiting frames with a groove-shaped bracket structure are fixedly installed on the two sides of the bottom frame; a plurality of groups of slanting irons and rolling wheels are fixedly installed at the lower part of the two sides of the upper frame; the rolling wheels are assembled in grooves of the limiting frames respectively; a plurality of rolling wheels with bearings are installed on the middle frame; the slanting surfaces of the slanting irons are in contact to the rolling wheels of the middle frame respectively; a lifting oil cylinder component is connected to the outer side of the middle frame; supporting seats in the swinging mechanism are fixedly installed at the upper part of the upper frame; a rotary shaft with the two ends fixed on the supporting seats respectively is fixedly installed between swinging frames; crank arms are fixedly installed at the middle part of the rotary shaft; and one end, far away from the swing frames, of each crank arm is hinged to a swinging oil cylinder component, so that the problems that feeding by lifting mechanism at a front nip and a back nip enables overlong middle section of a profile to be hung in air and a flexible region to be overlarge in deformation, so that the quality of the profile is lowered; and overlarge deformation can enable the front nip and the back nip not to be liable in clamping, so that the waste head is long are solved.

The invention relates to a multifunctional shoulder lamp for policemen. The multifunctional shoulder lamp solves the problems that in the prior art, the structure is complex, use is inconvenient, and the application scope is narrow. The multifunctional shoulder lamp is characterized in that a button switch is installed at the top, a magnetic attraction round sheet is installed on the lower surface of the compression end of a shoulder clamp, a top shooting LED lamp is welded to the front face of a circuit board, and flat shooting LED lamps are welded to the periphery of the back face of the circuit board; and an olecranon hook is arranged at the clamping end of an upper clamp, the upper clamp and a lower clamp are provided with arc-shaped opening edges, and the circuit board is further provided with a gyroscope module, a GPS module and a wireless radio frequency receiving and transmitting module. The multifunctional shoulder lamp has the beneficial effects that the radiation scope of LED lamp light is wide, the alarming effect is higher, and the wearing comfort of the human body and the stability of the shoulder lamp are improved. The multifunctional shoulder lamp can be worn on the human body, can be singly attracted to magnetic attraction objects such as a car, a guardrail and an alarming cone, and the alarming effect is achieved; and multiple shoulder lamps can be used in a combined manner, can be combined to be in an arrow shape or a letter shape and the like, and can achieve the alarming effect, and the application scope of the shoulder lamp is accordingly enlarged.

The invention relates to a lifting and cleaning type dyeing equipment, comprising a dyeing part, the dyeing part includes an auxiliary mechanism and a dyeing device; the auxiliary mechanism includes a support assembly and a sealing support assembly; The support part includes a load-bearing component, a locking component and a power component. The load-bearing component is driven by the power component to carry the support component for lifting movement. When the support component rises to dock with the sealing support component, the power component synchronously drives the locking component to lock the support component; The scrubbing part, the scrubbing part is arranged on one side of the lifting support part, the scrubbing part includes a scrubbing component a, a scrubbing component b and a push-pull component, the scrubbing component a and the scrubbing component b are driven by the push-pull component to clean the support component; overcome the dyeing equipment It is inconvenient to disassemble, and it is difficult to achieve rapid disassembly and fast positioning and fixing. If it is not cleaned for a long time, the dyeing quality will be poor.

The invention relates to a traveling device of a frame spinning automatic doffer, belonging to the technical field of frame spinning doffing equipment. The traveling device comprises a base, a motor, a driving shaft, a driven shaft, a driving wheel, a driven wheel, a transmission piece, a guide rail and a plurality of stretching units. The device utilizes the motor to drive the stretching units to continuously move through a transmission mechanism, simultaneously utilizes the guide rail to realize sliding bar stretching, and utilizes a dialing block to dial a spindle whorl so as to realize the function of driving the doffer to travel, so that exact positioned traveling of the doffer is realized and slippage phenomenon is avoided. Because the dialing block is stretching, the interference between the dialing block and the spindle whorl in the transmission piece movement process is avoided; and because the center lines of the spindle whorl and spindles are consistent, the traveling accuracy is guaranteed. Due to use of the device, the upper and lower rails of the traditional ring spinner are not needed to be changed; and the device is simple and reliable in structure, and low in manufacture and maintenance cost, and is suitable for intermittent moving type or continuous moving type automatic doffers.

The invention discloses an on-orbit ultra-large expandable space structure system. The system comprises a star body; a plurality of rib rods which are circumferentially arranged with the star body as the center, and have first ends hinged to the star body; a plurality of ring beams which are respectively arranged between second ends of the adjacent rib rods, the second ends of the rib rods being connected with the adjacent ends of the adjacent ring beams through hooke joints; a plurality of foldable diagonal bars of which the two ends are hinged to the star body and the second ends of the corresponding rib rods respectively; and a plurality of first unfolding mechanisms through which the rib rods are relatively fixed to the star body, and which can drive the rib rods to rotate away from the star body so as to be unfolded. During folding, the second ends of the rib rods draw close to one another, and the ring beams and the diagonal bars are folded; and during unfolding, the first unfolding mechanisms drive the rib rods to rotate and unfold, and the rib rods drive the ring beams and the diagonal bars to unfold. The system is small in size and large in area after being unfolded.

The invention relates to a swing type solar panel driving mechanism. The structure of the swing type solar panel driving mechanism comprises a rotary transformer, a stepping motor, a harmonic gear, anoutput shaft, a shell and a torsional pendulum cable; the fixed parts of the stepping motor and the harmonic gear are mounted on the shell; the stepping motor is connected with the harmonic gear, theharmonic gear is used for reducing the rotating speed of the stepping motor and transmitting the torque of a rotating shaft of the stepping motor to the output shaft, and the output shaft is used forbeing connected with an external solar panel and driving the solar panel to swing; the rotary transformer is used for measuring the rotation angle of the output shaft; and one end of the torsional pendulum cable is connected to an external actuating mechanism, and the other end of the torsional pendulum cable is connected to the shell of the drive mechanism. According to the swing type solar panel driving mechanism, a method for realizing electric signal transmission by replacing a slip ring with the torsional pendulum cable is adopted, and low weight, high rigidity, high reliability and longservice life are realized.

The invention discloses a metal workpiece hemming machine with three degrees of freedom, which comprises a machine frame, a hemming die, a hemming beam and a hemming transmission mechanism; Three degrees of freedom, vertical and rotational; the hemming transmission mechanism includes the hemming beam driving shaft, the first crank linkage mechanism and the second crank linkage mechanism; the hemming beam driving shaft is used to drive the hemming beam Rotation; the other end of the first crank is hinged on the frame and rotates synchronously; the other end of the first connecting rod is hinged on the flange beam drive shaft; the other end of the second crank is hinged on the frame and rotates synchronously; The other ends of the second connecting rods are respectively hinged on the corresponding first connecting rods. The present invention cooperates with each other through the three drive components of the first and second crank-link mechanisms and the flanged beam drive shaft, so as to realize the movement of three degrees of freedom in the horizontal direction, vertical direction and rotation, and during the movement process, There is no swinging attachment, and the folding precision is high.

The invention relates to a numerical control abrasive belt grinding tooling for intake and exhaust edges of a precise forged stator blade of an aircraft engine. The numerical control abrasive belt grinding tooling comprises fixtures used for clamping technological bosses at the two ends of the blade, a molded surface locating block used for locating a blade molded surface, and a fixture base, wherein the molded surface locating block is arranged on the fixture base; the fixture base comprises a bottom plate; a bracket is arranged on the bottom plate; a vertical linear guide rail is arranged on the bracket; a movable sliding block which can move up and down along the linear guide rail is arranged on the linear guide rail; a support is fixed to the movable sliding block; the molded surface locating block is fixed to the upper end of the support; a limiting device is further arranged on the bracket; the limiting device is used for fixing the support at a preset height; locating pins are arranged at the upper end of the molded surface locating block; and during locating, second locating pins are in contact with the blade molded surface of the blade, and first locating pins are in contact with the side surfaces of the blade technological bosses of the blade. According to the numerical control abrasive belt grinding tooling, the tooling structure adopts split design, the molded surface and a locating point are separated, and parts are clamped at one time.

The invention belongs to the technical field of mechanical processing and discloses a method for actively preventing a take-over tool path in a digitized manufacturing operation room from interferenceand collision. A machine tool safety point is arranged in such a way that a reciprocating tool path between a CAM programming and machining operation evading point and a machine tool safety point canbe prevented from interference and collision, and the reciprocating tool path is used as the take-over tool path in a machining operation room; according to features of a machine structure and a control system, an NC program segment for the machine tool to move from the machining operation evading point to reach the safety point is designed; at a machining operation take-over position, the NC program between the machining operation evading point and the machine tool safety point can be automatically added in an NC program generated after machining operation post-processing is realized throughdevelopment of a machine tool-specific post-processing program. The method disclosed in the invention is advanced in design principles and convenient and reliable in implementation. Requirements forCAM tool path designers can be lowered. The method is actually verified on a plurality of different machine tools, take-over tool path in the machining operation room in digitized manufacturing can becompletely prevented from interference and collision, and active safety can be realized.

The present invention discloses a communication method and device based on multi-channel monitoring and RSSI sampling, wherein the method includes the following steps: obtaining RSSI values ​​of a plurality of adjacent channels from a plurality of points uniformly distributed in space; At any time, if one of the multiple adjacent channels is to be used to send a data packet, the real-time RSSI values ​​of all channels are obtained, the median calculation is performed on the real-time RSSI values ​​of all channels, and the result is added to the result by one Offset X to obtain a noise threshold; compare the real-time RSSI value of the certain channel at time t with the noise threshold; if the real-time RSSI value is less than the noise threshold, determine that the channel is idle and send data. The communication method and device based on multi-channel monitoring and RSSI sampling provided by the present invention obtains the RSSI value of the channel in real time, and accurately calculates the noise threshold of the channel to ensure normal and reliable data transmission.