96results about How to "Will not deform" patented technology

The utility model discloses a paper cup framing system, which relates to the technical field of paper cup framing and comprises a paper cup conveying line used for conveying paper cups and a plastic frame conveying device used for conveying plastic frames, an open-close type interceptor is arranged at the tail end of the paper cup conveying line, and protective plates are arranged on the paper cup conveying line corresponding to two sides of the open-close type interceptor. The opening and closing interceptors are matched with protection plates on the two sides of the paper cup conveying line to position the paper cups; a grabbing device is arranged between the paper cup conveying line and the plastic frame conveying device, the grabbing device grabs paper cups on the paper cup conveying line into plastic frames on the plastic frame conveying device, the grabbing device comprises a collaborative robot, and a clamping jaw used for grabbing the paper cups is arranged at the moving end of the collaborative robot. The paper cup conveying line, the grabbing device and the plastic frame conveying device are matched with one another, so that the paper cups can be automatically and tidily placed in the plastic frames in the storage or transportation operation.

This application provides a water-cooled roller fixture for strip conveying, including a protective component, a drive component, a coupling, a water-cooled roller, and a water-cooling assembly. The protective component includes a protective cylinder and a first bearing seat and a second bearing seat rotatably located at both ends of the protective cylinder. The drive component is mounted on the first bearing seat. The coupling is placed inside the first bearing seat. One end of the water-cooled roller is inserted into the protective cylinder, and the other end is rotatably engaged with the first bearing seat. The water-cooled roller is connected to the output shaft of the drive component via the coupling. The water-cooling assembly is used to supply cooling water with a circulating path to the water-cooled roller. The water-cooled roller fixture for strip conveying provided by this application allows the water-cooling assembly to transport cooling water to the space where the water-cooled roller is located, cooperating with the existing forced cooling on the outer periphery of the protective cylinder to simultaneously cool the inside and outside of the protective cylinder. The coupling is placed inside the first bearing seat, isolating it from the outside environment and preventing moisture from contacting the coupling.

The utility model discloses an automatic switching edge grinding device of toughened glass, including the processing base that is square, be provided with glass bearing structure on the processing base, be equipped with the edge grinding mechanism in the position of glass bearing structure one side on the processing base, glass bearing structure includes the base, and the top surface of this base is provided with the installation groove, is provided with the bearing platform for bearing glass in the installation groove, and the circumference of bearing platform is provided with a plurality of limiting rods that are evenly distributed along its circumferential direction, the side wall of installation groove is concave and is equipped with a plurality of limiting grooves, and the number of limiting groove corresponds with limiting rod, and limiting groove penetrates the top of bearing platform upwards. The utility model discloses through the configuration of the limiting rod and limiting groove of bearing platform, plays the role of fixed bearing platform, and simultaneously, when needing to adjust the angle of toughened glass, only needs through telescopic link to make bearing platform rise first, rotates again, finally makes bearing platform drop and can realize.

This invention relates to the field of machining and discloses a fully automatic cutting and processing device for MPP power pipes, including a base, with a first pipe conveying frame and a second pipe conveying frame respectively disposed at both ends of the base; a cutting assembly is disposed between the first pipe conveying frame and the second pipe conveying frame; a connecting plate is fixedly connected to the end of the second pipe conveying frame away from the cutting assembly; a connecting rod is disposed on the connecting plate; a first support assembly is disposed at the end of the connecting rod away from the connecting plate; when the cutting position of the MPP power pipe moves into the cutting assembly, the first support assembly is inside the MPP power pipe and supports the MPP power pipe; by activating the cutting assembly, the cutting assembly cuts the MPP power pipe from the outer pipe wall to the inner pipe wall, so that when the cutting position of the MPP power pipe is subjected to the pressure of the cutting assembly during cutting, no deformation will occur, ensuring that the cut end of the MPP power pipe is flatter.

The utility model discloses a switch, which comprises a base, a handle and a transmission rod, the handle is rotatably arranged on the base, a static contact piece and a movable contact piece are arranged in the base, transmission parts are arranged on two sides of the handle, one end of the transmission rod is rotatably connected with the transmission parts, and the other end of the transmission rod is rotatably connected with the movable contact piece. One end of the transmission rod is rotationally connected with the transmission part of the handle, the other end of the transmission rod is rotationally connected with the movable contact piece, the transmission rod plays a transmission role between the handle and the movable contact piece, and the contact areas of the transmission rod, the handle and the movable contact piece are very small, so that the heat transfer area during closing is reduced, the temperature rise of the handle is reduced, and the service life of the switch is prolonged. The handle is ensured not to deform during long-time switching on, and the stability and reliability of the product are improved.

The ricefield eel trapping device comprises a supporting rod, a plurality of strip-shaped rods are arranged on the peripheral side of the outer portion of the supporting rod in parallel, at least two annular bases are arranged from one end to the other end of the surface of the supporting rod, and the edges of the annular bases are rotationally connected with a plurality of elastic supporting rods inclining towards the same direction. The strip-shaped rods are rotationally connected with the tail ends of the elastic supporting rods correspondingly, when the supporting pipes move back and forth along the supporting rods, the strip-shaped rods are folded or unfolded towards the supporting pipes at the same time, and when the elastic supporting rods are approximately perpendicular to the axes of the supporting pipes, the ends of the supporting pipes and the supporting rods are fixed through positioning devices. When the monopterus albus collecting net is used, monopterus albus can enter the supporting net body from the first conical net, and then the monopterus albus can enter the collecting net body from the second conical net. According to the monopterus albus trapping device, the supporting net body is supported by the strip-shaped rods, so that the supporting net body can be always kept in an open state in water and cannot incline or deform.

The application relates to the technical field of rubber and plastic product processing, and discloses an elevator load guide pulley production device, which comprises a workbench and multiple telescopic arms. A first supporting arm is fixedly connected to one side of the upper end of the workbench. A motor is fixedly connected to one side of the first supporting arm. A rotating disc is fixedly connected to the output end of the motor and penetrates through the first supporting arm. Multiple second supporting arms are fixedly connected to the outside of the rotating disc. The elevator load guide pulley production device can automatically adjust the positions of the telescopic arms according to load guide pulleys with different diameters through the cooperation of the positioning columns and springs on the telescopic arms and the grooves on the second supporting arms. The load guide pulleys to be processed can be fixed through the expansion of the moving plates. The motor drives the rotating disc to rotate, so that the multiple second supporting arms and the telescopic arms can be driven to rotate simultaneously, and the load guide pulleys to be processed can be processed in sequence. Therefore, the production line is more coherent, and the production efficiency is improved.

The utility model relates to a mute enamel wash basin, which belongs to the technical field of household bathroom accessories and comprises a basin body and a basin plate, the basin body and the basin plate are integrally stretched and formed, the peripheral side of the basin plate is bent downwards to form a reinforcing frame, and the basin body, the basin plate and the reinforcing frame are covered with an upper enamel layer and a lower enamel layer. The utility model relates to a noiseless enamel wash basin, which comprises a basin body and a basin plate, a drain hole is arranged in the basin body, a sound insulation material is arranged below the basin plate, and the sound insulation material is sound insulation cotton or sound insulation foam plates or sound insulation felts.The utility model aims to provide the noiseless enamel wash basin which is simple and reasonable in structure, light in whole, easy to clean and not easy to damage.

The utility model discloses a truck anti-rolling frame which comprises a first anti-rolling frame piece, second anti-rolling frame pieces are symmetrically installed in the first anti-rolling frame piece through bolts, third anti-rolling frame pieces are installed at the ends, away from the first anti-rolling frame piece, of the second anti-rolling frame pieces through bolts, and anti-rolling frame side plates are installed on one sides of the third anti-rolling frame pieces through bolts. The inner wall of the anti-rolling frame side plate is fixedly connected with a first net plate and a second net plate in sequence; the anti-rolling frame for the truck relates to the technical field of anti-rolling frames, the anti-rolling frame for the truck is provided with the first anti-rolling frame piece, the second anti-rolling frame piece, the third anti-rolling frame piece, the anti-rolling frame side plates, the sliding seats, the inserting blocks, the mounting blocks and the mounting grooves, so that the anti-rolling protection function on the truck is achieved, and cargoes in a cargo compartment are prevented from impacting a cockpit when collision occurs; and the cab is protected against large deformation, the safety effect is better, the device can be rapidly mounted and dismounted, and the dismounting and mounting efficiency is higher.

This utility model discloses an automatic valve spring assembly device and its automatic feeding assembly device, comprising: 1. An automatic valve spring assembly device, including a spring placement station and a valve placement station. An assembly mechanism is installed on one side of the spring placement station. The assembly mechanism includes a transfer component and an assembly component. The assembly component includes a clamping component and a pushing component. The clamping component includes a clamping cylinder and a pair of clamping claws, with a clamping hole formed between the pair of clamping claws. The pushing component includes a pushing cylinder and a push rod, with the push rod located above the clamping hole. An ejection hole is opened at the bottom of the valve placement station. An ejection mechanism is installed below the valve placement station. The ejection mechanism includes a base, an ejection cylinder, and an ejection rod, with the ejection rod passing through the ejection hole; 2. An automatic valve spring feeding assembly device, including a spring feeding device, a valve feeding device, a valve spring single feeding device, and an automatic valve spring assembly device; realizing the automated assembly of valves and springs.

This invention provides a detection device, including a detection body and a mounting assembly. The mounting assembly includes a mounting ring surrounding the detection body, connecting portions extending upward from both sides of the mounting ring, and spring claws disposed at the ends of the connecting portions. The detection body is rotatably connected to the connecting portions on both sides, and a first clearance portion is provided on the upper part of the detection body to avoid the spring claws. The detection device provided by this invention is beneficial for improving detection performance.

The invention discloses a heat preservation plate lossless conveying device, and relates to the technical field of heat preservation plate conveying, the heat preservation plate lossless conveying device comprises a machine body, a chain plate is arranged on the machine body, and the heat preservation plate lossless conveying device further comprises a positioning locking mechanism and an unlocking separation mechanism; by means of the design of a half gear, a toothed plate, a first reset spring, a pressing plate, a first linkage plate, an L-shaped rod and a push plate, two oppositely-arranged centering clamping plates can be driven to move oppositely on a chain plate, a heat preservation plate placed between the two centering clamping plates is pushed to be centered, the heat preservation plate can be conveyed on the chain plate in a centered mode, and the heat preservation plate conveying efficiency is improved. The problem of unstable conveying caused by position deviation in the conveying process of the heat preservation plates is avoided, so that vibration and shaking of the heat preservation plates in the conveying process are reduced, the heat preservation plates are protected against damage, and lossless conveying is achieved.

The utility model discloses a kind of air tightness detection tool, comprising: bottom plate, bottom plate is set with work platform and drive platform from bottom to top by support, drive platform is provided with drive cylinder, the piston rod of drive cylinder is connected with work platform, work platform is outwardly provided with protruding mounting portion, protruding mounting portion is provided with hard shaft gas pipe, the bottom of hard shaft gas pipe is provided with gas head connecting block, rubber gas head is set in gas head mounting hole, rubber gas head is provided with gas blowing port, hard shaft gas pipe is provided with elastic push component above gas head connecting block, the lower end of elastic push component is pressed on gas head connecting block, the upper end of elastic push component is pressed on the protruding mounting portion of work platform.The air tightness detection tool of the utility model is mainly used for the air tightness detection of electrical controller.

The utility model discloses a kind of bending devices for metal material processing, it is related to bending device technical field, including base, the front end left side fixed mounting of base has controller, the upper end of base is installed with fixed mechanism, the upper end of base is symmetrically fixed mounting with support with four corners, the top of support is fixedly installed with top plate, the lower end of top plate is installed with adjusting mechanism, the lower end of adjusting mechanism is installed with mounting frame, the inside movable mounting of mounting frame has mounting block, the lower end of mounting block is fixedly installed with bending head.The utility model is cooperated under connecting plate, screw No. 2, mounting seat, hydraulic cylinder, limit rod, limit block, motor No. 2, using rotating screw No. 2 can drive bending head to move left and right horizontally by mounting seat, and then the position of bending head can be adjusted, so that staff can adjust the position of bending, without manually adjusting bending position, it is convenient and fast to adjust, convenient for staff to use.

The utility model discloses high elastic double density shoe sole relates to the field of sole production, including sole main part, the sole main part, the first bonding groove corresponding with the sole bottom of the sole main part top outer wall is seted up, the inside of sole main part is equipped with the elastic structure for reinforcing the elasticity of sole, the elastic structure includes the first elastic buffer chamber and second elastic buffer chamber of setting up in the inside of sole main part, and the first elastic buffer chamber and second elastic buffer chamber inner wall are equipped with elastic buffer block, the sole main part bottom is equipped with the antiskid structure. This high elastic double density shoe sole has greatly strengthened the elasticity of sole, in the walking or movement process, the reaction force of ground is absorbed and dispersed by the synergistic effect of elastic buffer chamber, elastic buffer block and silica gel, can efficiently buffer ground reaction force, effectively reduces the impact to foot and joint, reduces the risk of sports injury, provides excellent comfortable experience for the user.

The invention provides a miniature heat dissipation device, and the device comprises a medium pipeline which is of a closed-loop structure and is internally provided with a cooling medium; the propeller is arranged in the medium pipeline and used for pushing the cooling medium to flow; the electromagnet is arranged on the outer side of the medium pipeline and used for converting electric energy into a magnetic field for pushing the propeller to move; and the power supply is electrically connected with the electromagnet so as to provide electric energy for the electromagnet. The invention further provides a control method of the miniature heat dissipation device and terminal equipment.

The utility model relates to the technical field of box girder reinforcement, and discloses an external prestressing steel cable anchoring device for a box girder. The external prestress steel cable anchoring device for the box girder comprises a support capable of being installed on the box girder, a steel anchoring part, a supporting assembly and a steering pipe, the steel anchoring part, the supporting assembly and the steering pipe are arranged on the support, and the supporting assembly comprises a plurality of first supporting steel plates and second supporting steel plates in one-to-one correspondence with the first supporting steel plates; the first supporting steel plate and the second supporting steel plate are arranged on the two sides of the steel anchoring part respectively and fixedly connected with the steel anchoring part. The steering pipe is located at the end, away from the steel anchoring part, of the first supporting steel plate, and the external prestressed steel beam can penetrate through the steering pipe and be anchored to the steel anchoring part. The external prestress steel beam anchoring device for the box girder is small in dead weight and convenient to construct, the construction cost is reduced, the construction period is shortened, the additional weight borne by the box girder is obviously reduced, and the safety of the box girder structure is guaranteed.

The application relates to the technical field of filter materials, and discloses a preparation method of a multilayer interval type continuous gradient structure liquid filter material, and provides the preparation method of the multilayer interval type continuous gradient structure liquid filter material. In the method, the fibers of the dust-containing layer adopt a skin-core structure with PP resin as a core layer and PE resin as a skin layer. The method uses cross-laying, puncture hot baking and multi-roller stretching to composite the filter monomers made of the dust-containing layer into the multilayer interval type continuous gradient structure liquid filter material. In the puncture hot baking, the fibers of the dust-containing layer of the filter monomers can enter the dust-containing layer of the adjacent filter monomers to form fiber entanglement points. The hot baking can make the PE resin of the skin layer melt and form a bonding reinforced fiber entanglement point at the fiber entanglement point, so that the composite strength of the material is significantly increased. The cross-laying and the multi-roller stretching can flatten the puncture holes caused by the puncture to improve the flatness of the surface of the material and ensure that the material will not be significantly deformed.

The application discloses an aluminum alloy liquid cooling plate friction stir welding clamp and method, the clamp comprises a first base, a second base, a support beam, a first clamping plate, a second clamping plate and a stopper. The first clamping plate and the second clamping plate clamp the leaf cooling plate and ensure the vertical state, and the addition of the stopper expands the support surface, avoiding the problem that the protruding part of the stirring shaft shoulder cannot be supported and welded. The clamp has good rigidity and can meet the downward pressure load requirement of the friction stir welding, and the vertical welding mode meets the fusion depth and appearance requirements of the liquid cooling plate, and a high-quality liquid cooling plate is prepared.

The display module comprises a display panel, in a first direction, the display panel comprises a display area, a bending area and a binding area, the bending area is bendable to bend the binding area to the backlight side of the display area, when the bending area is in a bending state, a heat dissipation functional layer is arranged between the display area and the binding area, and a first rigid support layer is arranged between the heat dissipation functional layer and the binding area. The display device is also disclosed.

The utility model relates to the technical field of dustproof, splash-proof, drip-proof, waterproof or fireproof shells, and discloses a data line with a protection mechanism, which comprises a data line body, the left side of the data line body is fixedly connected with a plug, the outer surface of the data line body is sleeved with a line protection sleeve, the outer surface of the plug is sleeved with a plug protection sleeve, and the plug protection sleeve is sleeved with a wire protection sleeve. The wire protection sleeve is fixedly connected with the plug protection sleeve, the upper sides of the wire protection sleeve and the plug protection sleeve are provided with mounting ports, the outer surface of the wire protection sleeve is provided with a fixed ring groove, the fixed ring groove is internally provided with a fixed ring, the lower side of the plug protection sleeve is provided with a sleeve head, and the plug protection sleeve and the sleeve head are provided with a connecting mechanism. When the sleeve head and the plug protection sleeve are connected together, the sleeve head is not extruded by a mobile phone during charging, so that the sleeve head is not easy to lose and is not extruded to deform, and the service life of the protection sleeve is prolonged.

The utility model provides a kind of TO encapsulation photodiode fixed bolster, and photodiode includes package shell and pin, package shell is equipped with photosensitive chip inside, fixed bolster includes: female head, for installing photodiode, female head is equipped with light hole along axial direction, and light hole is used for photosensitive chip receiving light source;Male head includes supporting part and abutting portion, and abutting portion is used for cooperating with female head and fixing photodiode, pin passes through abutting portion and is welded with circuit board along axial direction, and supporting part is welded with circuit board.The photodiode is fixed in female head by the cooperation of male head and female head, the pin of photodiode is welded with circuit board by passing through abutting portion, and is fixed by being welded with circuit board by supporting part, so that photodiode has enough supporting capacity in strong vibration environment, the pin of photodiode does not deform or de-soldering with circuit board, avoid the risk of photosensitive chip and light source forming angle and falling, and then avoid affecting normal output signal of photosensitive chip.

This utility model discloses a sensor mounting structure for a climbing scaffold control system, relating to the technical field of climbing scaffold control systems. By setting limit blocks, studs, and adjusting nuts at both ends of the pull-up steel cable, this utility model simplifies the structure for fixing the pull-up steel cable and allows it to be fixed through a stable mechanical structure. This prevents the pull-up steel cable from deforming due to clamping during fixing, extending its service life. Furthermore, after installation, the pull-up steel cable uses the counter-tension at both ends to fix and support the climbing scaffold sensor, allowing the pull-up steel cable to fully utilize its axial strength advantage. This not only increases the upper limit of the weight the pull-up steel cable can bear but also makes it less prone to bending deformation under load, extending its service life and reducing the maintenance frequency when using this sensor mounting structure for the climbing scaffold control system, resulting in better practical performance.

This invention discloses a prefabricated steel-concrete composite beam floor structure, including frame columns, steel main beams, and steel secondary beams. Floor slabs are laid on the steel main beams and secondary beams. Connecting plates are vertically installed on the web of the steel main beams. One end of the floor slab is wrapped with angle steel. The floor slabs do not contact the frame columns. In this invention, the first floor slab is connected to the steel main beam by a first bolt, achieving a combined effect between the steel main beam and the first floor slab, improving the bending resistance and stiffness of the steel main beam. The second and third floor slabs are connected to the steel secondary beams by spot welding, ensuring that the floor slabs will not collapse under seismic loads. The third floor slab has no rigid connection to the steel main beams, allowing relative sliding between them after an earthquake, thus preventing damage to the slab. Furthermore, a gap is left between the third floor slab and the frame columns to ensure that the deformation of the frame columns under seismic loads does not collide with the floor slab, maintaining the integrity of the floor slab.

The utility model discloses an extrusion die for copper bar production, which belongs to the technical field of extrusion dies and is characterized in that one end of an extrusion die body is fixedly connected with a mounting plate, the surface of the mounting plate is provided with mounting holes which are annularly distributed at equal intervals, one end of the extrusion die body is provided with a die hole, and one end of the die hole is provided with a working tape; according to the extrusion die for copper bar production, a flow guide nozzle can be additionally arranged at the discharging end of the extrusion die body through the connecting part arranged on the extrusion die body, and the stroke of a working belt is increased through a flow guide hole, so that the copper bar subjected to extrusion molding cannot be bent and wavy; and the flow guide coating is arranged on the inner wall of the die hole, the flow guide coating is a DLC coating, the hardness of the inner wall of the die hole can be greatly improved, meanwhile, the friction coefficient of the inner wall of the die hole is extremely low, deformation, abrasion and metal filing remaining of the die hole are avoided, and then the surface of the copper rod is prevented from being scratched and bruised.

This utility model discloses a precision-drilled multilayer circuit board, belonging to the field of multilayer circuit boards. It includes a circuit board and rivets. Each rivet comprises a linkage structure, a clearance groove, a limiting ring, a riveting groove, an outer protective ring, an assembly ring, a riveting plate, a riveting connecting rod, an inner pressure ring, a snap-fit ​​groove, and a through groove. Through the combination of the outer protective ring and the limiting ring, and the inner riveting groove and the riveting plate, stacked rivets can be achieved. Each rivet can independently press the circuit board through the limiting ring, ensuring the stability between circuit board layers and improving interlayer positioning accuracy. Simultaneously, it reduces the pressure difference between layers, thereby reducing deformation caused by uneven interlayer stress, ensuring the accuracy of subsequent drilling, etc. It is not limited by the number or thickness of layers, allows for convenient assembly, and eliminates the need for multiple sets of riveting holes, saving circuit board space. During riveting, a single riveting connecting rod can drive all assembled rivets to be riveted simultaneously, eliminating the need for multiple riveting operations, ensuring stability while improving production efficiency.

The invention belongs to the technical field of outlet box sealing, and particularly relates to a motor outlet box. The outlet box comprises a seat body installed on a motor casing, a box body supported on the seat body, an insulating plate which is arranged at the bottom of the box body and is detachably and fixedly connected with the seat body, and a plurality of binding post units which penetrate through the insulating plate and are arranged in a sealing manner, the binding post unit comprises a binding post with different diameter parts in the axial direction and an insulating pressing cover for pressing the binding post in the insulating plate; the insulating plate is provided with a stepped hole matched with the binding post unit, and a sealing structure is arranged on the joint face, abutting against the binding post, of the stepped hole. Therefore, the insulating pressing cover of the outlet box can press the binding post on the insulating plate, so that the sealing structure between the binding post and the insulating plate can realize effective sealing. And meanwhile, the contact state of a sealing interface is optimized, so that the sealing structure only bears axial compression instead of torsion and is not deformed and abraded, the service life of the sealing structure is greatly prolonged, and the service life of the motor is prolonged.

The utility model discloses a bushing type current transformer which comprises a current transformer body, the upper surface of the current transformer body is fixedly connected with a shell, the shell is provided with eight sliding grooves, the inner surfaces of the eight sliding grooves are connected with sliding blocks in a sliding mode, the upper surfaces of the sliding blocks are fixedly connected with lower bearing blocks, and the lower bearing blocks are fixedly connected with lower bearing blocks. The upper surfaces of the eight lower bearing blocks are fixedly connected with upper bearing blocks, a pull rod is slidably connected between every two lower bearing blocks and every two upper bearing blocks in a penetrating mode, through the components, the eight clamping plates clamp inwards at the same time, and compared with a traditional double-clamping-plate clamping mode, eight-point-position clamping can provide more comprehensive and more balanced supporting force; the mutual inductor and the wire are connected more stably, the mutual inductor is effectively prevented from sliding or shifting on the surface of the wire, pressure borne by all parts of the wire is balanced, and the situation that the wire is deformed due to the fact that local pressure is too high is avoided.

The application provides a gear synchronous transmission anti-clamping laser pipe cutting chuck, which comprises a front cover, a rear cover, a connecting shaft for fixedly connecting the front cover and the rear cover, two pairs of clamping claws for clamping a pipe, an actuating cylinder for providing a power source, a synchronous driving mechanism for synchronously transmitting the driving force of the actuating cylinder to the clamping claws, and an anti-clamping mechanism for limiting the stroke of the synchronous driving mechanism and thus limiting the stroke of the clamping claws; the synchronous driving mechanism comprises an ear seat connected with the actuating cylinder, a push rod connected with the ear seat, a synchronous driving gear wheel in transmission connection with the push rod, four driven gear wheels in meshing connection with the synchronous driving gear wheel, one pawl fixedly arranged on each of the driven gear wheels, and four sliders slidably arranged on the front cover; the four pawls are in transmission connection with the four sliders respectively; and one clamping claw is fixedly arranged on each of the sliders. The application has high transmission efficiency and synchronous precision, is suitable for machining pipe fittings with a large size range, and can be effectively used for clamping thin pipes or fragile pipe fittings.