70 results about "Magnetic spring" patented technology

This specification describes a transducer configured to convert electrical signals into vibrational movement. The transducer comprises an axially-magnetised reciprocating magnet, wherein the axially-magnetised reciprocating magnet comprises an aperture such that the reciprocating magnet has an inner boundary and an outer boundary.The transducer further comprises at least two pairs of concentrically positioned electromagnetic solenoids, the at least two pairs of concentrically positioned electromagnetic solenoids being configured to drive the reciprocating magnet to reciprocate in a volume above and below the reciprocating magnet. The first solenoid of each of the pairs of concentrically positioned electromagnetic solenoids is positioned to influence the reciprocating magnet at the inner boundary more than at the outer boundary, and a second solenoid of each of the pairs of concentrically positioned electromagnetic solenoids is positioned to influence the reciprocating magnet at the outer boundary more than at the inner boundary. The reciprocating magnet is suspended in the mid-point of its axial travel at a null position using either mechanical springs or magnetic springs.

The utility model provides a magnetorheological damper with variable rigidity and variable damping. The magnetorheological damper mainly comprises a piston rod, a piston head, a spring, a magnetic spring floating piston, a magnet exciting coil and the like. Under the action of a magnetic field, an annular flow channel in the piston head generates a magnetorheological effect, the shear yield stress of magnetorheological fluid is increased, damping force is generated, the magnetic spring floating piston is used for compensating volume change, resistance is provided through the permanent magnets connected with the magnetic spring floating piston, and magnet exciting coils on the outer sides of the permanent magnets at the upper and lower positions can be used for enhancing or weakening the magnetic field. Different repulsive forces are provided for the permanent magnet connected to the magnetic spring floating piston, and the required force is changed under the condition that the displacement of the piston head is the same, so that the rigidity of the magnetorheological damper is changed; effective control over damping and rigidity can be achieved by changing the current magnitude of the corresponding magnet exciting coil.

Electrical / electronic installation device, in particular a switch (S) or push button, for installation in a junction box (D), for triggering an action of an actuator connectable to the installation device, in particular a lamp, a blind or the like, wherein the installation device has a function module enabling remote control with a radio transmitter and with an actuation sensor, wherein the installation device comprises a magnetic spring (MF) which is mechanically compressed by actuation of the installation device through the back of a rocker (W) or rocker receptacle (WA) of the installation device, wherein this actuation is detected and evaluated by an actuation sensor designed as a magnetic field sensor (H), and the current switching position of the rocker (W) is also determined, characterized in that the magnetic spring (MF) is designed as a coil spring.

The spray gun comprises a barrel (12) having an angularly arranged handle (14), a barrel liquid supply conduit for guiding liquid from a liquid supply to a discharge orifice of the barrel (12), and a valve stem arranged within the barrel liquid supply conduit for relative movement between open and closed positions of the discharge orifice (21). Comprising a pair of magnets (40A, 40B) disposed outside the liquid supply conduit is effective for biasing the valve stem to the discharge hole closed position in response to the repulsive magnetic force of the magnets, and the trigger (15) is actuatable to move the valve stem against the repulsive magnetic force of the magnet assemblies (40A, 40B) in order to open the discharge hole (21), the opposite magnetic forces of the magnets force the valve stem to a closed position of the discharge hole (21).

The utility model discloses a high-performance permanent magnet bistable electromagnetic clutch, which belongs to the field of clutches and comprises a driving end face wheel and a driven end face wheel which are meshed with each other, and a shaft rod end of the driving end face wheel and a shaft rod end of the driven end face wheel are provided with a driving shell and a driven shell which are hermetically connected through a bolt structure. Compared with the prior art, the device has the advantages that the clutch state fixing assembly for limiting the opening and closing states of the clutch is designed to be of a pure physical structure, and the magnetic clamping block is pulled to move horizontally along the plane end of the sliding groove of the L-shaped limiting rod through magnetic force generated by the electromagnet; therefore, the limiting rod at the outer wall end of the movable armature can conduct positioning sliding along the vertical end of the L-shaped limiting rod sliding groove, when the electromagnet loses power, the magnetic clamping block continues to abut against the limiting rod under the action of the non-magnetic spring, and therefore the state of the clutch is fixed.

The utility model relates to an intelligent door and window anti-theft alarm device based on the internet of things, which comprises a magnetic reed type switch, a magnetic plate, a control module, a wireless communication module and an alarm module, the magnetic reed type switch is pre-buried on a door frame main body or a window frame main body, and the magnetic plate is installed on a door main body or a window main body. When the door main body and the door frame main body are closed or the window main body and the window frame main body are closed, the magnetic plate is close to the magnetic reed switch and the magnetic reed switch is closed; the control module is used for being electrically connected with the magnetic reed type switch, the control module is in communication connection with the wireless communication module, and when the door body or the window body is opened abnormally, the magnetic plate is away from the magnetic reed type switch located in the door frame body or the window frame body along with opening of the door body or the window body, so that the electric shock in the magnetic reed type switch is cut off; the control module sends a signal to the wireless communication module and the alarm module after detecting that the electric shock is cut off, the wireless communication module is used for reflecting that someone intrudes into the user, and the alarm module is used for warning the intruder.

The utility model discloses a kind of fixed crystal machine thimble assemblies with gravity balancing device, including thimble piece, voice coil motor and magnetic spring assembly, the voice coil motor is connected and drives the thimble piece vertical reciprocating motion, the voice coil motor includes voice coil motor rotor and voice coil motor stator, the magnetic spring assembly includes magnetic spring, the magnetic spring includes magnetic spring rotor and magnetic spring stator, the voice coil motor stator and the magnetic spring stator are fixed immovably, the voice coil motor rotor indirectly fixed connection the magnetic spring rotor. The beneficial effects of the utility model technical scheme are: in the present scheme, constant magnetic force spring is used, under the condition that load force is constant in guaranteeing motor operation process, due to the supporting effect of magnetic force, so that motor load is reduced, relatively small size motor can be selected, prolong the service life of motor while also reduce the working energy consumption.

The present invention relates to the technical field of electric motors, in particular to a stepping motor. The stepping motor includes a first cover plate, a second cover plate, a stator assembly and a rotor assembly. The stepping motor further includes a first magnetic spring sleeved and fixed on the shaft, the first magnetic spring includes a first magnetic ring in a ring shape and a second magnetic ring. Compared with the prior art, the present invention effectively strengthens the axial restraint of the motor rotor by adding non-contact magnetic springs to the shaft of the rotor. This can eliminate axial displacement. Meanwhile, since there is no physical contact between the non-contact magnetic springs and the shaft, no additional friction will be introduced. The output torque is superior to that of the existing contact-type coil springs or elastic washers, and the running noise of the motor is significantly reduced.

The application belongs to the technical field of IGBT welding and specifically relates to an ultrasonic unit for small-pressure welding and a welding device, wherein the ultrasonic unit comprises a base, a horizontal part and a vertical part; a welding assembly is slidably connected to the vertical part of the base, the welding assembly comprises an ultrasonic triple group configured to weld a workpiece; and a driving assembly is arranged between the horizontal part of the base and the ultrasonic triple group, the driving assembly comprises a driving part and a magnetic spring, the magnetic spring is arranged in parallel with the driving part, the driving part is configured to provide welding pressure for the ultrasonic triple group, and the magnetic spring is configured to balance the gravity of the welding assembly; the application can realize small-pressure welding of the workpiece and avoid direct damage to the surface of the workpiece due to excessive gravity of the welding assembly.

The spiral energy storage spring and the compression spring are integrated inside, or the spiral energy storage spring, the magnetic spring and the planar spring are integrated inside, so as to realize energy storage and passive flexibility, reduce driving consumption and meet the requirement of driving agility.SOLUTION: Disclosed is a flexible joint based on an elastic element, including an involute small-tooth-number difference reducer, a spiral energy storage spring, and a flexible output module / composite flexible output module. The involute small-number-of-teeth difference reduction gear employs only an eccentric input shaft, a pair of involute internal tooth rings, and an involute planetary gear to achieve oscillation and rotation motions of the involute planetary gear. The power output of the output disc is transmitted by the interaction of the column pin and the first column pin working hole of the involute planetary gear or the second column pin working hole of the output disc. The accuracy requirement can be easily met only by the meshing form of the pair of gears, the axial dimension is compact, the pair of gears adopt involute tooth profile, and the manufacturing cost is low.SELECTED DRAWING: Figure 1

The invention provides a passive vibration isolation device with a three-degree-of-freedom magnetic spring, particularly relates to a passive vibration isolation device capable of bearing the self weight of precision production and detection equipment and reducing ground vibration energy transmitted into the borne equipment, and belongs to the field of passive vibration control. The device comprises a rack, a load tray, a vibration isolation system, a three-degree-of-freedom magnetic spring assembly, a coupling mechanism, a horizontal vibration isolation assembly, a vertical vibration isolation assembly, a stator unit, a mover unit, a guide mechanism, a stator unit base, a stator magnet, a stator magnet pressing plate, a mover unit base, a mover magnet, a z-direction guide rail sliding block module, a z-direction motion platform and a y-direction guide rail sliding block module. A y-direction motion platform; and an x-direction guide rail slide block module. The device is provided with a plurality of pairs of rotor units and stator units in different directions, and the vibration isolation capacity of the device in the vertical direction and the horizontal direction is adjusted through the anisotropic rigidity between the rotor units and the stator units. The vibration isolation capacity is improved without influencing the bearing capacity, meanwhile, the multi-direction vibration isolation capacity is adjusted, and the design is simplified.

To provide an actuator and a system having an operation detection function and a tactile feedback function, which can be easily manufactured at low cost and can be more easily used.SOLUTION: An actuator that presents an output perceivable by a user by driving a movable body having a magnet in accordance with movement of the movable body by an operation of the user includes a coil that generates a magnetic field by energization to move the movable body, and a fixed body in which an outer yoke that is a magnetic body is disposed outside the coil in a radial direction, and the magnet and the outer yoke constitute a magnetic spring by a magnetic attraction force between the magnet and the outer yoke.SELECTED DRAWING: Figure 2

The utility model relates to the technical field of semiconductor detection, in particular to an ultrasonic detection instrument which comprises a fixed seat, a groove is formed in the surface of the fixed seat, a water tank is arranged in the groove, a bearing plate is arranged above the water tank, a limiting ring is arranged on the bearing plate, and a wafer is placed on the limiting ring; the pair of first driving mechanisms is mounted on the fixed seat; the second driving mechanism stretches across the groove, and the two ends of the second driving mechanism are arranged on the first driving mechanism in a sliding mode to serve as rotors of the first driving mechanism; the sliding device comprises a sliding block and a plurality of detection devices, the sliding block is arranged on the second driving mechanism in a sliding mode, the multiple detection devices are all located above the wafer and used for detecting the wafer, each detection device comprises a third driving mechanism, a magnetic spring and a detection head, and the driving end of the third driving mechanism is connected with the detection head and drives the detection head to be close to or away from the wafer. The magnetic spring is connected with the third driving mechanism, and when power is off, the magnetic spring supports the driving end of the third driving mechanism to keep the height unchanged.

The application relates to an expander assembly and a Stirling refrigerator, which comprises an expander base, a cold finger in sealed connection with the expander base, a pusher assembly in the expander base and the cold finger, and an expansion cavity formed by the cold finger and the pusher assembly; and a magnetic spring assembly arranged close to the expansion cavity and used for generating a magnetic force applied to the pusher assembly, wherein the action direction of the magnetic force is opposite to the movement direction of the pusher assembly during movement. The magnetic part of the application is continuously in a low-temperature environment, so as to continuously have a larger magnetic flux, and the magnetic part is prevented from falling off due to debonding, and meanwhile, the overall volume of the product is further reduced, so that the product structure is more compact.

The utility model discloses a moving mechanism and a high-precision robot for the dispensing industry, and belongs to the technical field of robots, H-shaped grooves are formed in two opposite end faces of one group of a sliding block main body, two brake blocks are arranged in the H-shaped grooves in a mirror image mode, springs for clamping guide rods are arranged between the brake blocks and the H-shaped grooves, and the guide rods are connected with the H-shaped grooves through bolts. An air channel is arranged on the sliding block body, a plurality of outlets of the air channel are formed in the H-shaped groove, a plurality of driving grooves are formed in the brake blocks, brake push blocks are arranged in the outlets of the air channel, and the brake push blocks are matched with the driving grooves to achieve separation of the two brake blocks. The electromagnetic driving mode is adopted for transmission, no contact exists during operation, the problems of abrasion and the like do not exist, the response speed is high, and the operation speed is increased. The sliding block is provided with a normally-closed brake structure, so that the robot is accurately positioned. A Z-direction moving mechanism and a glue head can be added according to requirements, so that the dispensing efficiency is improved. And the constant-force magnetic spring is used, so that Z-axis positioning precision can be guaranteed, the dispensing mechanism is prevented from falling, and use safety is guaranteed.

The invention discloses a lens driving device, a camera device and a portable electronic device. The lens driving device comprises a fixing part, a driving part and a driving part, a movable member on which a lens is fixed; a guide; the electromagnetic actuator comprises magnetic steel and a coil; a yoke; wherein in the optical axis direction of the lens, the magnetic steel comprises a first magnetic pole part and a second magnetic pole part, the polarities of adjacent magnetic poles are opposite, and a layered line is formed at the junction of the first magnetic pole part and the second magnetic pole part; when the coil is not powered on, the orthographic projection of the geometric center of the magnet yoke on the magnetic steel roughly falls on the layered line. Compared with the prior art, by means of the minimum magnetic resistance path in the in-plane direction between the magnet yoke and the magnetic steel, attraction force perpendicular to the optical axis is generated, the movable piece is continuously pressed to the fixed piece, and the magnetic spring effect of pulling the movable piece close to the center of the optical axis is achieved so that the play of the guide piece can be eliminated.

The utility model relates to the technical field of magnetic induction switches, and discloses an embedded magnetic reed switch which comprises a switch shell, the outer wall of the switch shell is fixedly connected with a first connecting sleeve, the inner part of the first connecting sleeve is slidably connected with left and right symmetrical rotating sleeves, the outer walls of the rotating sleeves are slidably connected with sliding sleeves, and the sliding sleeves are slidably connected with the first connecting sleeve. And the outer wall of the sliding sleeve is fixedly connected to the interior of the first connecting sleeve, a baffle is fixedly connected to the interior of the sliding sleeve, a first spring is arranged in the sliding sleeve, an inserting rod is slidably connected to the interior of the rotating sleeve, and a limiting block is fixedly connected to the outer wall of the inserting rod. According to the magnetic reed switch, the switch shell is connected with the first connecting sleeve and rotates on the outer wall of the rotating sleeve, then the threaded sleeves on the two sides are screwed out, and then the inserting rods slide out of the interiors of the threaded sleeves, so that the second connecting sleeve and the mounting plate can be detached, and the problem that after an existing magnetic reed switch is installed and fixed, the magnetic reed switch cannot be detached is solved. And the self position cannot be independently adjusted.

A valve element assembly comprises a blocking piece, a spring and a waterproof breathable film, the blocking piece is arranged on an air inlet of a battery pack, an air hole is formed in the middle of the blocking piece, and the waterproof breathable film covers the air hole, so that when the internal and external pressure difference of the battery pack is small, the air inlet of the battery pack can breathe through the air hole, and the pressure difference is balanced; meanwhile, the separation blade has magnetism, the spring is arranged on the separation blade and matched with the valve cover assembly, and when the air tightness test is carried out on the battery pack, the magnet is adopted to adsorb the separation blade outside the valve cover assembly, so that the separation blade can move towards the valve cover assembly under the action of magnetic force and drive the spring to be synchronously compressed; the inside of the battery pack can be inflated and deflated through cooperation of the exhaust port and the air inlet of the battery pack conveniently and quickly, after the air tightness test is completed, the magnet is taken away, the spring can drive the separation blade to reset under the action of the restoring force of the spring, and it is guaranteed that the breathing anti-explosion valve can work normally and is stable and reliable.

The utility model relates to a linear motor balancing device which comprises a base and a stator arranged on the base, a guide rail is arranged on the base, a bearing plate is arranged on the base in a sliding mode through the guide rail, a rotor is arranged on the bearing plate, and the linear motor balancing device further comprises a magnetic spring assembly arranged on one side of the base; the mounting seat is arranged on the magnetic spring assembly; according to the linear motor balancing device, the bearing plate and the magnetic sleeve are conveniently connected through the connecting plate, the embedding plate on the connecting plate slides into the embedding groove of the bearing plate, and the bearing plate and the magnetic sleeve are connected through the connecting plate. And the U-shaped seat at the lower end is accurately matched with the groove in the mounting seat and is connected with the mounting seat through a bolt, so that the mounting and the dismounting are convenient, the connection tightness can be ensured, and the maintenance efficiency of the equipment is greatly improved.

The spiral energy storage spring and the compression spring are integrated inside, or the spiral energy storage spring, the magnetic spring and the plane spring are integrated inside, so as to realize energy storage and passive flexibility, reduce the driving consumption and meet the requirements of driving agility. [Solution] A flexible joint based on an elastic element is disclosed, including an involute small tooth difference reducer, a spiral energy storage spring, and a flexible output module / composite flexible output module. The involute small tooth difference reducer uses only an eccentric input shaft, a pair of involute internal tooth rings, and involute planetary gears to realize involute planetary gear oscillation and rotation. The power output of the output platen is transmitted through the interaction of the column pin and the first column pin operating hole of the involute planetary gear or the second column pin operating hole of the output platen. The precision requirements can be easily met by simply using a pair of gears meshing, the axial dimension is compact, and the pair of gears use an involute tooth profile, so manufacturing costs are low.

The invention relates to the technical field of detection, in particular to a scanner assembly, a detection device and a carrier. The scanner assembly comprises a base, a rotating part, a magnetic drive assembly, a magnetic repulsion assembly and a reflector. The rotating part is rotationally connected to the base around a first axis. The magnetic drive assembly comprises a stator and a rotor, one of the stator and the rotor comprises a winding, and the other comprises a magnetic part; the magnetic repulsion assembly comprises a first magnet and a second magnet which are fixedly connected with the winding, and the first magnet and the second magnet are respectively used for generating repulsive force with the magnetic part; the reflector is fixed on the rotating member. According to the embodiment of the invention, the magnetic repulsion assembly and the magnetic part form the magnetic spring, so that the rotor can be driven to rapidly reverse the rotation direction, the working time ratio is improved, and the resolution is improved. Moreover, a part of the magnetic spring is formed by a magnetic part in the magnetic drive assembly, so that the weight of the rotor is reduced, the start and stop of the rotor and the change of the rotation direction are facilitated, and the resolution is improved.

The invention relates to an active part (1) for an electric machine comprising: - an active part body (3) for holding a magnetic spring generating component (5) of the active part (1), - Recesses (7) which extend axially through the active part body (3), as well as - at least one blow molded part (11) extending axially through the active part body (3) and arranged within at least one recess (7), which forms a contour of the at least one recess (7) and thereby lines the at least one recess (7) and which encloses a cavity (9) extending axially through the active part body (3).

The application discloses a wave energy collection device based on a magnetic spring-leaf spring type bistable mechanism, comprising a bistable energy trapping device (1), a motion conversion device (2), an electromagnetic power generation device (3) and a power management module, wherein the bistable energy trapping device is provided with a magnetic spring-leaf spring type bistable mechanism, and through nonlinear interaction between magnets, efficient capture of mechanical energy under low-frequency waves is realized; the motion conversion device (2) is designed through a gear transmission system and a one-way bearing, so that one-way rotation of an output shaft is ensured; the electromagnetic power generation device (3) utilizes the relative rotation principle of a magnet flywheel and a coil, the magnetic flux of the coil changes, so that a voltage is generated, mechanical energy captured by the bistable energy trapping device (1) is converted into electric energy, and simultaneously, the power management module is responsible for rectification, storage and distribution of the electric energy, so that stable power supply can be obtained under any condition. The system has wide application prospects and important economic value in the fields of marine ecosystem monitoring, climate change research and marine pollution monitoring.

Solenoid device (1) with: an electromagnetic coil (2) through which an electric current is passed to generate a magnetic flux (φ); a fixed core (3) which is arranged in the electromagnetic coil (2); a movable core (4) which performs a reciprocating movement in an axial direction of the electromagnetic coil (2) depending on whether an electric current passes through the electromagnetic coil (2); a magnetic spring (5) arranged between the fixed core (3) and the movable core (4) and comprising a magnetic substance, wherein the magnetic spring (5) biases the movable core (4) in a direction away from the fixed core (3) in the axial direction; and a yoke (6) which is included in a magnetic circuit (C) in which the magnetic flux (φ) flows, wherein the magnetic circuit (C) further comprises the magnetic spring (5), the movable core (4) and the fixed core (3), wherein When an electric current passes through the electromagnetic coil (2), the movable core (4) is attracted to an access position by an electromagnetic force against a spring force of the magnetic spring (5), the access position being relatively close to the fixed core (3), the electromagnetic force arising from the conduction of the electric current; and when the conduction of the electric current through the electromagnetic coil (2) is stopped, the movable core (4) is moved to a separation position by the spring force of the magnetic spring (5), the separation position being farther from the fixed core (3) than the access position. the magnetic spring (5) comprises a leaf spring element (50) which has the magnetic substance and is wound in such a spiral manner that a thickness direction of the leaf spring element (50) coincides with a radial direction of the electromagnetic coil (2), wherein a central section (51) of the magnetic spring (5) is biased to one side in the axial direction compared to a circumferential section (52) of the magnetic spring (5), and When the movable core (4) is attracted to the access position, the magnetic spring (5) is prevented from extending to a minimum spring length (L). MIN ) is deformed, which corresponds to a width of the leaf spring element (50) in the axial direction.

The utility model provides a flow switch with flow regulation structure, including the casing, is provided with the import end and export end respectively in the both ends of casing, still include the magnetic spring switch subassembly of setting in the lateral part of casing, swing setting in the magnetic component of casing, set up flow regulation subassembly in import end, casing lateral part is provided with the mounting hole of being linked with import end and export end respectively, the magnetic component includes the mounting block of one side with mounting hole connection, swing setting in the magnet swing block of mounting block close to the one side of mounting hole, magnet swing block and magnetic spring switch subassembly magnetism is connected, the utility model provides a flow switch with flow regulation structure, through setting flow regulation subassembly in the import end of casing, through the cross section area of valve core rotation adjustment fluid flow, and then make the trigger flow regulation of magnetic spring switch fast and accurate, realized the function of flow setting and signal trigger, the compact structure of flow switch, installation safe and reliable, improved the regulation adaptability of magnetic spring flow switch.

Provided in the present application is a vibration motor, comprising: a housing having an accommodating space, and guide members, a vibrator assembly and a stator assembly which are accommodated in the accommodating space, wherein the stator assembly comprises a coil unit and two first magnetic spring units, which are arranged in a first direction and are respectively fixed to the housing; the vibrator assembly is slidably connected to the guide members, and comprises a magnetic steel unit and two second magnetic spring units; the magnetic steel unit runs through the coil unit; the two second magnetic spring units are arranged so as to be spaced apart between the two first magnetic spring units in the first direction and are arranged corresponding to the two first magnetic spring units on a one-to-one basis to form a magnetic repulsive force; and after being energized, the coil unit pushes the vibrator assembly to vibrate in the first direction, and the magnetic repulsive force between the two first magnetic spring units and the corresponding second magnetic spring units provides a restoring force for the vibrator assembly, such that the vibrator assembly reciprocates in the first direction. The present application prolongs the service life of the vibration motor, increases the vibration magnitude, and improves the vibration performance and reliability.

The invention discloses a wire stripper based on operation of a distribution network hot-line work robot and an operation method, and relates to the technical field of hot-line work cable auxiliary equipment. According to the main technical scheme, a base is used for being connected with a mechanical arm of a robot; a stator of the constant-force magnetic spring is connected to the base; the wire stripper body is connected to a rotor of the constant-force magnetic spring, and the wire stripper body is parallel to the axis direction of the stator along the moving direction of the wire; when the wire stripper body moves along the wire, the rotor synchronously moves in the direction from one end of the stator to the other end of the stator. By utilizing the physical characteristics of the constant-force magnetic spring, passive flexible connection is established between the wire stripper body and the mechanical arm, so that the mechanical arm does not need to cooperatively follow the wire stripper body. Therefore, speed mismatch caused by wire condition change or communication delay can be automatically compensated, and accumulated displacement deviation in the movement process can be effectively eliminated or greatly reduced, so that the continuity and accuracy of a wire stripping path can be ensured.

The present invention widens a frequency band width capable of outputting a desired vibration intensity in a vibration actuator that vibrates linearly by resonance. A vibration actuator includes a magnetic spring that generates a magnetic force that urges a vibrating movable body toward a center position of vibration, and the magnetic spring is configured such that the magnetic force generated when displacement of the movable body from the center position is large is smaller than the magnetic force generated when displacement of the movable body from the center position is small.

The utility model belongs to the technical field of automatic machining, and discloses a material taking and pressing device which comprises an installation platform and a plurality of material taking and pressing assemblies, the material taking and pressing assemblies are arranged at intervals and detachably connected to the installation platform, and the material taking and pressing assemblies correspond to a plurality of parts to be assembled in a one-to-one mode. Each material taking and pressing assembly comprises a suction nozzle mechanism, a constant-force magnetic spring mechanism and a floating mechanism, the suction nozzle mechanisms are connected to the output ends of the constant-force magnetic spring mechanisms and attract parts to be assembled, and the constant-force magnetic spring mechanisms are connected to the output ends of the floating mechanisms and attract the parts to be assembled. The floating mechanism adjusts the constant-force magnetic spring mechanism in the X direction and / or the Y direction so that the suction nozzle mechanism and the part to be assembled can be coaxially aligned. The mounting platform can drive the material taking and pressing assembly to reciprocate in the vertical direction and press the multiple to-be-assembled parts on the product. According to the material taking and press fitting device, simultaneous press fitting of a plurality of parts to be assembled can be achieved, the press fitting position is accurate, the press fitting force is accurate, and the assembling efficiency is improved.

The invention discloses a spring detection device and method, a laser emission device and a visual acquisition system are matched to detect a spring body, the spring detection device comprises a positioning seat, the positioning seat comprises two V-shaped positioning surfaces, the positioning surfaces have magnetism, and the spring body is magnetically attracted and positioned through the two positioning surfaces; the detection device further comprises a fixing plate, the fixing plate is provided with a limiting groove, the limiting groove is an annular groove, the limiting groove comprises a first groove extending in the left-right direction and a second groove extending in the up-down direction, the fixing plate is provided with a second baffle, and the second baffle is located below the limiting groove. The positioning seat can move left and right, the positioning seat is provided with an inserting plate, the inserting plate and the positioning seat synchronously move left and right, the inserting plate can move up and down, the inserting plate is fixedly provided with a fixing column, and the fixing column penetrates through the inserting plate and is inserted into the limiting groove. According to the spring detection device and the detection method, the measurement precision is improved.