56results about How to "Avoid elastic" patented technology

The invention relates to the field of municipal engineering construction, in particular to gas pipeline construction equipment for municipal engineering. Comprising a conveying mechanism, a supporting and fixing mechanism and a groove cutting mechanism, the supporting and fixing mechanism and the groove cutting mechanism are sequentially arranged in the conveying direction of the conveying mechanism, the groove cutting mechanism comprises a fixed ring, a rotating ring and cutters, the rotating ring is coaxially and rotatably arranged on the fixed ring, and the cutters are evenly distributed on the rotating ring in the circumferential direction of the rotating ring. Each cutter can move in the radial direction of the cutter, the extrusion ring can move in the axis direction of the extrusion ring, a plurality of supporting pieces capable of moving in the radial direction are evenly distributed on the inner side of the extrusion ring in the circumferential direction of the extrusion ring, and an inner supporting driver is arranged on the extrusion ring. The rubber layer on the extrusion ring is elastically attached to the end face of the gas pipeline removal end, a uniform limiting contact face is formed, the stability of axial limiting is improved, the gas pipeline is internally supported through cooperation with the multiple supporting rollers, and the stability of radial limiting is improved.

This utility model discloses a building construction material processing and cutting mechanism, comprising: an operating table with a fixed groove, a lifting transmission box fixedly connected to the upper surface of the operating table, a lifting threaded rod movably connected to the upper surface of the lifting transmission box, a lifting plate threadedly connected to the side surface of the lifting threaded rod, and a pressure plate fixedly connected to the lower surface of the lifting plate; and a fixed plate with a movable threaded rod movably connected to its side surface, a movable plate threadedly connected to the side surface of the movable threaded rod, a clamping plate fixedly connected to the lower surface of the movable plate, and a cutting blade movably connected to the side surface of the clamping plate. Through this structure, automated fixing and cutting of building construction materials are achieved, keeping the material stable during cutting and preventing it from moving or popping out. It can meet the cutting requirements of materials of different shapes and sizes, ensures consistent cutting accuracy, and improves the cutting efficiency and applicability of the cutting mechanism.

The utility model relates to the technical field of desertification control equipment, and discloses a folding straw square automatic planting device which comprises a material box assembly, a folding guide planting assembly, a ditching assembly, a soil covering assembly, a movement assembly and a machine body. The material box assembly adopts a quick-release design and supports quick replacement; the folding guide planting assembly realizes accurate folding and accurate furrow entering of wheat straws through a V-shaped mold and a brush conveying belt; the ditching assembly is provided with a height-adjustable moldboard plow; the soil covering assembly compacts soil through a press wheel; and the movement assembly realizes full-process automation through a PLC (Programmable Logic Controller). The problems that traditional manual laying is low in efficiency and the grass grid structure is loose are solved, the wind prevention and sand fixation effects are remarkably improved, and the device is suitable for desertification control.

The utility model relates to the field of industrial oven, especially industrial oven with protection structure, including oven main part, the top fixed connection of oven main part has the symmetrical distribution's rectangular plate, the top of oven main part is provided with first protection plate, one side of first protection plate is provided with connecting rod, and one end of connecting rod is fixedly connected with second protection plate, and first protection plate is opened with accommodating cavity, and first protection plate is provided with the protection mechanism that through connecting rod and second protection plate reinforce oven main part, the top fixed connection of first protection plate has rectangular frame, and one side of oven main part is hingedly connected with the sliding door, one side of sliding door is provided with reinforcing plate, and the top plate of first protection plate is provided with the reinforcing mechanism that through reinforcing plate reinforces sliding door. The utility model discloses when using, can through directly with fixed bolt unloading, let second protection plate of two sides be far from each other, can take down it, will not damage protection structure and box.

This invention relates to the field of machining technology, and discloses a machining method for insert placement and the insert itself. The machining method for insert placement includes the following steps: Step S10, the insert placement blank includes an open area and a closed area. The insert placement blank is clamped onto a CNC machine tool, and the open area of ​​the insert placement blank is CNC machined to obtain a semi-finished insert placement product with a 0.03mm wire EDM machining allowance in the open area. The height of the open area of ​​the semi-finished insert placement product is greater than or equal to 20mm. Step S20, the open and closed areas of the semi-finished insert placement product are wire EDM machined to obtain multiple finished inserts. This invention, by reserving a 0.03mm allowance in CNC machining, is reasonably designed to avoid wire clamping and wire EDM springback problems caused by slow wire cutting, ensuring the surface finish of the product and meeting the machining requirements, while not affecting the wire EDM machining efficiency.

The utility model discloses a composite gradient yielding lining structure for a tunnel, and relates to the technical field of yielding lining structures, the composite gradient yielding lining structure comprises a main supporting soft support, a supporting assembly is arranged below the main supporting soft support, the supporting assembly comprises two fixed inner supporting frames, side fixed supporting frames are arranged on the surfaces of one sides of the two fixed inner supporting frames, and the side fixed supporting frames are arranged on the surfaces of the other sides of the two fixed inner supporting frames. Limiting convex blocks are arranged on the surfaces of one sides of the side fixing supporting frames, a center movable frame is further arranged on the bottom face of the main supporting soft support, connecting shaft bodies are arranged at the two ends of the center movable frame, and the other sides of the two connecting shaft bodies are connected with one ends of fixing inner supporting frames correspondingly; according to the tunnel lining structure, the supporting assemblies are arranged, so that elastic degradation and creep deformation caused by a single yielding layer in a long-term high-pressure environment are avoided, and the long-term stability, the maintenance efficiency and the safety of the tunnel lining structure are remarkably improved.

The utility model is applicable to the field of pneumatic technology, and provides a pneumatic crimping tool with a pressing structure, which comprises a workbench. The crimping structure is mounted on the workbench; the pressing structure comprises a mounting frame, a pressing plate, connecting columns and reset springs, the mounting frame is arranged on the workbench, the mounting frame is provided with a pair of mounting holes, the connecting columns are slidably inserted into the mounting holes respectively, the reset springs are inserted into the connecting columns respectively, and the two ends of each reset spring are connected to the mounting frame and the connecting columns; the pressing plate is fixedly mounted at the lower end part of the connecting column; according to the utility model, the mounting rack slides until the pressing plate arranged on the upper end face of the mounting rack is arranged right above the workpiece, and the lower end face of the pressing plate is attached to the workpiece, so that the condition that the workpiece is displaced or deformed and even accidentally popped out or moves due to pressure is avoided, and the safety of operators is ensured.

The application discloses a micro-thermal battery activation device and relates to the technical field of micro-thermal battery activation. The device comprises a battery base body, a mounting seat is fixedly connected to the top of the battery base body, a filler is mounted at the bottom of the mounting seat, a plurality of ignition caps are inlaid between the filler and the bottom of the mounting seat, a circular ring seat is fixedly arranged in the mounting seat, a plurality of striking pins are vertically and slidably arranged in the surface circular holes of the circular ring seat through elastic members; three groups of force storage assemblies are arranged, each group of force storage assemblies corresponds to a group of trigger assemblies, the trigger conditions of the three groups of trigger assemblies are different, the force storage assemblies are matched with the trigger assemblies, multi-factor triggering in a complex environment is realized, the situation of activation failure is avoided, the force storage assemblies are in a non-force storage state in a non-triggering state, the spring is prevented from being in a stressed state for a long time, stress fatigue is avoided, and long-term preservation is more facilitated.

The utility model relates to a kind of supporting and installing rubber ring devices, comprising: feeding assembly and grabbing component, feeding assembly includes first vibrating tray and second vibrating tray, and the output end of first vibrating tray is provided with feeding block, and the output end of second vibrating tray is provided with correct mechanism;Grabbing component includes support frame, first cylinder, second cylinder, push plate and material removing cylinder, support frame is set in the top of first vibrating tray and second vibrating tray, and the telescopic end of first cylinder is provided with slide plate;Second cylinder is connected with slide plate, and the telescopic end of second cylinder is provided with mounting seat;Mounting seat bottom is provided with pneumatic finger, and the clamping end of pneumatic finger is provided with multiple inner supporting claw;Push plate surface is provided with material removing port, and material removing port is set on the outside of inner supporting claw, material removing cylinder is set on mounting seat, and material removing cylinder is connected with push plate.The utility model realizes the automation of rubber ring taking and placing and suit, improves production efficiency, reduces human operation damage, and improves product yield.

The utility model relates to a spring assembling machine of a track socket electricity taking mechanism, which comprises a vibration disc feeding device and a press fitting device connected with the vibration disc feeding device, the press fitting device comprises a workbench, a material receiving table mounted above the workbench, a material pushing mechanism mounted on the outer side of the material receiving table and a material pressing mechanism arranged above the material receiving table, the press-fitting device is connected with the vibration disc feeding device through the material receiving table, the press-fitting device further comprises a fixing support and a sliding base connected with the fixing support in a sliding mode, and the material receiving table, the material pushing mechanism and the material pressing mechanism are all connected to the sliding base. According to the technical scheme, through collaborative design and function integration of all the mechanisms, the defects of manual spring installation in the prior art are effectively overcome. All the mechanisms form an automatic process of feeding, positioning and press fitting through the linkage design of the sliding seats, the conveying, pushing and press fitting processes of springs do not need to be manually intervened, efficient, accurate and automatic assembling of the springs of the track socket electricity taking mechanism is achieved, and the production efficiency is greatly improved.

This invention relates to the field of positioning technology for thin-walled workpieces, and discloses a positioning device for preventing offset of thin-walled workpieces based on CNC machine tools. It aims to solve the technical problems of easy deformation during positioning of thin-walled workpieces and poor adaptability of traditional clamping blocks. The device includes a CNC machine tool body, a rotating chuck, an adjustment drive assembly, a push rod assembly, and a tensioning positioning assembly. A frustum-shaped push block converts rotational motion into linear motion via a screw and nut mechanism. This, in conjunction with a limiting assembly, drives the push rod assembly to synchronously and uniformly extend and retract radially, causing a spring steel sheet with a pre-positioned section to achieve curvature self-adaptation. The pre-positioned section is a sliding compensation arc surface section, adapting to thin-walled pipes of different diameters while maintaining surface contact. The device has two sets of staggered tensioning positioning rings, forming a full-circumferential, gapless support for the inner wall of the pipe. This device avoids stress concentration problems caused by line contact, effectively preventing deformation of thin-walled pipes, balancing positioning firmness and deformation prevention requirements, and significantly improving the processing qualification rate and production efficiency of thin-walled pipes.

The utility model discloses flat vacuum cup forming equipment convenient to fix, and relates to the technical field of vacuum cup production. According to the flat vacuum cup forming equipment convenient to fix, by arranging the fixing frame, the fixing blocks, the clamping holes, the clamping blocks, springs, fixing plates, bolts, fixing bases and a long pipe, the function of fixing the long pipe is achieved, the long pipe is prevented from moving in the water swelling process, and therefore a round pipe expands according to a preset shape under the uniform pressure environment; the size precision and the shape consistency of the flat vacuum cup can be improved, and the defective rate of products is reduced; by arranging the fixing base, the connecting rod, the connecting frame, the fixing rod, the connecting ring, the electric telescopic rod, the first adjusting rod, the clamping block and the manufactured long pipe, the function of multiple fixing of the manufactured long pipe is achieved, the fixing function of the manufactured long pipe is further enhanced, and the stable fixing mode can prevent the manufactured long pipe from accidentally moving or popping out in the high-pressure water expansion process.

The invention discloses a granulator for waste plastic recycling, and relates to the technical field of plastic recycling, the granulator for waste plastic recycling comprises a workbench, a granulator body and a fixing frame, a conveying box is arranged in the middle of the fixing frame, a polishing barrel is arranged on the lower side of the conveying box, and a recycling box is arranged on the right side of the polishing barrel; plastic particles are subjected to vibration screening by arranging the screening mechanism, the filter plate is made to do parabola reciprocating motion under cooperation of a vertical groove and an arc-shaped groove, the dispersion and screening effect among the particles is promoted, two sliding rods with different lengths driven by a cam form sequential beating, the short sliding rods conduct basic vibration on the filter plate, and the screening effect is improved. When the filter plate starts to reset and is located at the highest point of the track, the long sliding rod conducts secondary strong beating on the lower right end of the filter plate on time, so that particles clamped in meshes are shaken off, shaking cleaning is conducted on the screen face, and the problem that a traditional vibrating screen is prone to being blocked is fundamentally solved.

The utility model provides a handle anti-pinch structure and a generator set. The handle anti-pinch structure comprises a grip, a first swing arm, a second swing arm, a limiting pin and an elastic piece. The first swing arm and the second swing arm are arranged at the left end and the right end of the grip respectively. The side, facing the second swing arm, of the first swing arm is provided with a first wall face. The limiting pin is matched with the first swing arm in a telescopic mode, and the limiting pin can stretch out of the first wall face or retract into the first wall face. The elastic piece is used for applying elastic force to the limiting pin so that the limiting pin can stretch out of the first wall face. The limiting pin is designed on the first swing arm, and the limiting pin can extend out of the first wall surface after the first swing arm and the like rotate outwards by utilizing the elastic force applied by the elastic piece to the limiting pin, so that even if the handle falls back, the limiting pin can also abut against the panel, and the return position of the first swing arm and the like is limited; and it is guaranteed that the grip, the first swing arm and the second swing arm cannot completely abut against the panel, hurt to the hands of a user is avoided, and safety is improved.

This utility model relates to a thread grinding machine, including a base, a chuck and a tailstock for clamping workpieces, and a horizontally movable wheel frame. A grinding wheel spindle and a drive motor are mounted on the wheel frame. A material discharge hole is formed on the upper surface of the base between the chuck and the tailstock. A funnel-shaped material collection bin with openings at both the top and bottom is installed at the bottom of the material discharge hole. A cleaning brush adapted to the inner wall of the material collection bin is installed inside the bin. The cleaning brush is connected to the base via a horizontal slide, and one end of the cleaning brush is connected to the wheel frame. The cleaning brush moves synchronously with the wheel frame, cleaning debris adhering to the inner wall of the material collection bin. This utility model, by providing a material discharge hole on the base and installing a funnel-shaped material collection bin, utilizes the horizontal movement of the wheel frame to drive the synchronous movement of the cleaning brush, achieving periodic cleaning of the inner wall of the material collection bin, effectively avoiding equipment failure and reduced machining accuracy caused by debris accumulation.

This utility model discloses a retaining ring support fixture. It includes: a slider chuck with a protrusion at its bottom; a base with a guide groove that mates with the protrusion of the slider chuck; a central hole at the tail of the base; a guide screw that passes through the central hole of the base and is fixedly connected to the slider chuck; a wing nut that is threadedly connected to the end of the guide screw; one end of the slider chuck being fixedly connected to the retaining ring; and the other end of the base being fixedly connected to the retaining ring. The slider chuck can move axially within the guide groove. Rotating the wing nut drives the slider chuck to generate axial displacement along the guide groove, thereby achieving elastic deformation control of the retaining ring. This retaining ring support fixture, through the threaded transmission of the wing nut and the guide screw, and the sliding engagement of the slider chuck in the guide groove, can achieve precise elastic deformation control of the retaining ring; assembly can be completed by a single person.

The utility model discloses a multi-strand stranding device for copper wires, which relates to the technical field of copper wire processing equipment and comprises a rack, a door frame is fixedly arranged on the upper surface of the rack, a wire inlet pipe is rotatably arranged in the middle of the outer wall of one side of the door frame through a bearing, and two wire spools are rotatably arranged on the inner wall of one side of the door frame. Through the arrangement of the door frame, the sliding rail, the sliding seat, the tension wheel, the fixed wheel and the movable wheel, a copper wire is wound by the winding roll after passing through the fixed wheel, the tension wheel and the movable wheel in sequence after being twisted, and in the process, the sliding seat drives the tension wheel to move under the action of the tension spring, so that the tension wheel and the copper wire apply acting force; the sliding seat can slide along the inclined sliding rail to ensure that the copper wire is in a tightened state, so that the tension balance in the copper wire winding process is ensured, and the sliding seat can slide along the inclined sliding rail to realize manual adjustment of the tension of the copper wire, so that the tension balance in the copper wire winding process is ensured.

The utility model discloses a seeding unit of a soybean seeding machine, which belongs to the technical field of seeding and comprises a rack, a seed sowing device and a seed box are sequentially arranged above the rack, a parallel four-bar profiling mechanism is fixedly arranged at the front end of the rack, and a grass pulling device, a depth limiting adjusting mechanism, a seeding adjusting mechanism and a pressing adjusting mechanism are sequentially arranged at the lower end of the rack. The depth limiting adjusting mechanism is fixedly connected with the pressing adjusting mechanism. By adopting the seeding monomer of the soybean seeding machine, the problems that the seeding monomer of a soybean no-tillage seeding machine is asynchronous in profiling, inconsistent in ditching depth, non-uniform in plant spacing, easy to block and the like are solved, and meanwhile, the seeding depth and the pressing force are accurately adjusted.

The invention discloses a PCB and three-layer insulated wire integrated planar transformer and a winding implementation device thereof, and relates to the technical field of transformer production equipment.The transformer comprises a machining table, a positioning assembly and a winding assembly are arranged at the top of the machining table, a pressing assembly is arranged on the winding assembly, and the pressing assembly comprises a first connecting rod; and the top of the first connecting rod is fixedly connected with a mounting box. According to the PCB and three-layer insulated wire integrated planar transformer and the winding implementation device thereof, continuous and flexible pressure provided by the pressing spring is transmitted to the pressing block through the pressing rod, real-time and self-adaptive pressing of three layers of insulated wires in the winding process is achieved, and the winding implementation efficiency is improved. The dynamic pressing mechanism can ensure that each turn of wire rod is tightly and flatly attached to the surface of the PCB, and the wire rods are effectively prevented from loosening or bouncing off, so that the overall flatness and the structural stability of the winding are remarkably improved, and meanwhile, a solid foundation is laid for achieving the ultrathin design of the transformer.

The utility model discloses a screw capable of locking the snake bone direction of a medical endoscope, and belongs to the technical field of medical instruments. The screw comprises an adjusting assembly which is arranged in an endoscope handle and used for adjusting the angle of the snake bone, and a locking nut which is fixedly arranged in the endoscope handle and corresponds to one side in the adjusting assembly. The inserting rod sequentially penetrates through the adjusting assembly and the endoscope handle and is used for abutting against the side, away from the locking nut, of the adjusting assembly, and the thread is arranged at the end of the inserting rod and matched with the locking nut. According to the screw rod capable of locking the direction of the snake bone of the medical endoscope, through mechanical locking force generated by thread meshing and reverse rotating force of the locking nut, rigid fixation can be achieved without continuous manual maintenance after the direction of the snake bone is adjusted, and snake bone displacement and angle springback are effectively prevented; the endoscope can be kept stable in the using process, the accuracy and safety of an operation are improved, and the physical burden of medical staff is relieved.

The utility model discloses a hydraulic compaction control device which comprises an upper hydraulic assembly which is supported on the ground and drives a compaction carrying disc to reciprocate in the vertical direction through a first hydraulic air cylinder, a cavity is formed downwards along the center of the top end face of the compaction carrying disc, and a plurality of cylindrical channels are transversely formed in the cavity in a penetrating mode. The plurality of cylindrical channels are arranged in parallel at the same height position; the sliding rod assembly comprises at least two sliding rods which are arranged outside the compaction carrying disc in the longitudinal direction, and the compaction carrying disc is arranged on the sliding rods in a sliding mode; the lower hydraulic assembly is connected to the upper portion of the upper hydraulic assembly through a sliding rod assembly, a second hydraulic air cylinder vertically drives the pressing disc to reciprocate, and the pressing disc is arranged in the cavity in a matched mode when pressed downwards. Through bidirectional cooperative pressurization, efficient heat dissipation and exhaust, a modularized adjustable structure and a high-precision guide design, the problems that a traditional compaction device is uneven in pressure, insufficient in heat dissipation and the like are effectively solved, and the compaction quality, efficiency and equipment reliability are remarkably improved.

This utility model belongs to the field of switch technology, specifically a silent tactile switch, including a base and a top cover. The base is provided with a first contact and a second contact, both of which extend into the interior of the base. A dome switch is mounted on the base, including a connecting part and a contact part. The contact part is provided with a moving contact that mates with the second contact. The top cover is provided with a button that extends through the top. A silicone pad is provided between the button and the dome switch. The bottom end of the silicone pad has a protrusion that contacts the dome switch, and also has a vent hole and a positioning protrusion on the bottom circumference. The top of the base is provided with a positioning groove that mates with the positioning protrusion. The top cover and the base are riveted together. Through the above structural design, this utility model can effectively reduce pressing and rebound noise, improve the quietness of operation and response sensitivity, and extend the service life.

The utility model belongs to an automobile glass transfer device in the technical field of automobile glass production. The front end of the connecting piece is connected with a spring shock absorber (2), the spring shock absorber (2) comprises a spiral spring (15) and a damper (16), the spring shock absorber (2) is connected with the rear portion of a vacuum suction cup (1), and the vacuum suction cup (1) is communicated with a vacuum pump. The connecting piece comprises a transverse rod piece (5) and a vertical rod piece (6), the transverse rod piece (5) and the vertical rod piece (6) are fixedly connected, and the transverse rod piece (5) and the vertical rod piece (6) are of an L-shaped structure. According to the automobile glass transfer device, safe and effective transfer of half-box automobile glass can be achieved.

The utility model discloses a walking excavator landing leg with high stability, which belongs to the technical field of excavators and is technically characterized by comprising a connecting arm, a sliding groove is arranged on one side of the connecting arm, a sliding plate is slidably connected in the sliding groove, two sides of the sliding plate are slidably connected with sliding frames, one side of each sliding frame is rotatably connected with a first connecting plate through a bearing seat, and the other side of each sliding frame is rotatably connected with a second connecting plate through a bearing seat. One side of one first connecting plate is fixedly connected with a second supporting plate, and the two sides of the second supporting plate are rotationally connected with first supporting plates through rotating shafts. Through the interaction of the first supporting plate and the second supporting plate, the contact area between the supporting leg and the ground is increased in the working environment with soft soil, through the mutual cooperation of the second connecting plate and the protruding block, the contact area between the bottom of the supporting leg and the ground is increased, and through the arrangement of the locking assembly, the supporting leg can be locked. And the double fixing and protecting effects on the sliding frame are achieved.

The invention discloses an anti-aging power cable, and belongs to the technical field of power cables. The cable sequentially comprises a conductor, an insulating layer, a metal shielding layer and an outer sheath layer from inside to outside. Wherein the outer sheath layer is made of a POE composite material and comprises the following raw materials in parts by weight: 65-75 parts of POE, 15-20 parts of high-density polyethylene, 10-15 parts of a flame retardant, 4-6 parts of chopped aramid fibers, 1-2 parts of an anti-aging auxiliary agent, 2-4 parts of a light protection auxiliary agent and 0.5-1.5 parts of a processing auxiliary agent. Wherein the light protection auxiliary agent has the effects of widening the ultraviolet absorption range and enhancing the mechanical property. The prepared cable has excellent bending resistance, dragging resistance, rolling resistance, ultraviolet aging resistance and thermo-oxidative aging resistance, and is especially suitable for mobile electrical connection occasions such as charging piles, the service life of the cable is remarkably prolonged, and the safety and reliability of the cable are remarkably improved.

The invention discloses an elevator car wall plate rolling mill, and particularly relates to the technical field of plate forming devices.The elevator car wall plate rolling mill comprises a rolling forming machine and an automatic punching machine, an operation table is fixed to one side of the rolling forming machine, and a conveying component is installed on the operation table; the conveying component comprises a servo motor, a car wall plate and a U-shaped box fixed to the operation table, an installation component is arranged on the U-shaped box, two sets of symmetrical moving components are arranged on the installation component, and a driving assembly is jointly arranged on one sides of the two moving components in the same set. According to the elevator car wall plate rolling machine, through the arranged conveying component, the multiple clamping assemblies on the upper side and the lower side can be driven by an eccentric wheel and a movable assembly to continuously and alternately clamp and move on a square track, so that a rigid whole is formed between a car wall plate and the clamping assemblies on the upper side and the lower side, and relative sliding is avoided; the output length is accurate, and the stamping positioning error is obviously reduced.

The utility model discloses a flexible printed circuit (FPC) connector capable of preventing a cover from being deformed and falling, which belongs to the technical field of FPC connectors and comprises a connector base and a connecting terminal inserted on the connector base, a protective cover plate is mounted on the connector base and connected with a cover plate pivot, and the cover plate pivot is connected with the connector base. The cover plate pivot is installed in a containing groove formed in the connecting terminal in a penetrating mode, a flexible flat cable is connected between the protective cover plate and the connector base in an inserted mode, one end, close to the cover plate pivot, of the connecting terminal extends to form a bent portion, and the inner side surface of the protective cover plate is smooth and used for canceling a slug hole and reducing demolding stress. According to the FPC connector capable of preventing the cover from being deformed and falling off, a slug hole is omitted, the problem of stress deformation of the cover caused by too large pulling force is solved when a product is demoulded by a plastic mould, a proper glue feeding point is designed and selected in the earlier stage, and original shrinkage deformation of the product is avoided.

This utility model relates to the technical field of pneumatic baffle devices, and discloses a pneumatic baffle device for a feed roller conveyor. It includes a main frame, an integrated baffle, casters, a slide rail, and a cylinder. The slide rail and cylinder are both housed within the device body. The main frame is slidably connected to the slide rail, the integrated baffle is located on the side wall of the main frame, the casters are located on the top surface of the main frame, and the bottom surface of the main frame is connected to the cylinder's pushing end. This utility model reduces edge collision deformation of the sheet metal through a dual design of elastic elements and a buffer layer, extending the baffle's service life. The adsorption integrated plate utilizes vacuum negative pressure to achieve smooth deceleration and fixation of the sheet metal, avoiding bouncing or slippage during high-speed conveying. The integrated design of the integrated baffle and the adsorption integrated plate saves installation space and adapts to the conveying needs of sheet metal of different specifications.

This utility model discloses an adjustable chandelier balancer, including a mounting base, a winding wheel movably mounted within the mounting base, a cable wound on the winding wheel, a spring winding wheel mounted on one side of the winding wheel, and a spring mounting wheel movably mounted on the mounting base corresponding to the spring winding wheel. A constant force spring is wound on the spring mounting wheel, one end of which is fixed to the spring winding wheel. A gravity braking mechanism is also installed within the mounting base. When the chandelier is adjusted, the constant force spring provides a stable basic recovery force through an S-shaped winding method, while the gravity braking mechanism provides dynamically adjustable additional braking force, which is increased when pulling down and released when rising, finding a perfect balance point that matches the weight of the chandelier, thereby achieving dynamic balance throughout the entire stroke. This utility model greatly reduces the reliance on on-site fine adjustment of the spring preload, avoids the technical problems of chandelier rebound or slippage, is simple to operate, and provides consumers with a better user experience.

The invention relates to the technical field of semiconductor manufacturing equipment, in particular to a multi-station self-adaptive part machining device of semiconductor testing equipment, which comprises a supporting unit, a floating unit and a clamp type machining unit, and is characterized in that the clamp type machining unit comprises a first machining arm positioned outside a workpiece and a second machining arm extending into the workpiece; through a closed-loop force system of the clamp type machining unit, the machining counter-force is self-balanced between the first machining arm and the second machining arm and is not transmitted to the workpiece supporting structure, and therefore the problems that a workpiece is stressed and deformed due to clamping of a traditional three-jaw chuck and a springback ellipse is generated after the workpiece is loosened are thoroughly solved. Meanwhile, the passive floating freedom degree ensures that the cutter can follow the radial run-out and manufacturing errors of the workpiece in real time, the relative distance between the cutter and the wall face is constant all the time no matter how the workpiece deviates, and the problem of local over-cutting or missing cutting is effectively solved.