121results about "Brushes manufacture" patented technology

The invention discloses a flexible wire stroking device and a wire stroking method, which are applied to the technical field of flexible wire stroking devices, and are characterized in that the flexible wire stroking device comprises a base; a positioning feeding assembly is fixedly connected to the base, and the base is movably connected with a twisting assembly at the bottom of the positioning feeding assembly based on a first sliding lifting assembly, wherein the twisting assembly is used for twisting a flexible wire at the bottom of a carbon brush into one strand. The base is movably connected with a carbon brush clamping assembly used for clamping a carbon brush to achieve feeding and discharging and a flexible wire straightening assembly used for straightening a flexible wire twisted into one strand on the top of the positioning feeding assembly based on a second sliding lifting assembly. The straightening device has the advantages of being simple in structure, good in straightening effect and capable of improving production efficiency.

The invention discloses a motor brush material for intelligent household appliances and a preparation method thereof, and the preparation method comprises the following steps: mixing matrix graphite powder with a composite binder to prepare mixed particles, and crushing, screening and mixing to prepare brush matrix powder; the method comprises the following steps: preparing powder into a brush green body through compression molding, roasting the green body under the protection of a combined atmosphere of nitrogen and hydrogen to prepare a brush cooked body with a porous structure, and carrying out negative pressure dipping treatment on the brush cooked body to prepare the brush material. The prepared electric brush material has the advantages of being long in service life, good in reversing performance, low in spark grade, low in noise, capable of reducing heating during motor operation, capable of improving energy efficiency and the like.

The invention discloses an automatic carbon brush assembling mechanism which comprises a brush box feeding mechanism, a carbon brush body feeding mechanism, a spring feeding mechanism, a box closing mechanism, a wire welding mechanism, a box closing mechanism, a pulling measurement mechanism and a discharging mechanism which are arranged in sequence and arranged around a rotating disc, the rotating disc can pivot around a fixed axis, the rotating disc is provided with a plurality of stations, and the stations are arranged on the rotating disc. According to the automatic assembling mechanism for the carbon brushes, the whole process of brush box feeding, carbon brush body feeding, wire arranging, spring feeding, welding wire fixing, box closing, pulling testing and carbon brush discharging can be fully automatically carried out, and the assembling efficiency of the carbon brushes is improved.

The invention provides an automatic brush wire forming device suitable for a space column type conductive slip ring, which comprises a brush wire bending assembly, a rotating shaft and an electric brush assembly clamping tool, and is characterized in that the electric brush assembly clamping tool comprises a base and a support frame arranged on the base; a waist-shaped groove matched with a brush wire bending track is formed in the supporting frame, the rotating shaft is installed in the waist-shaped groove, the brush wire bending assembly is fixedly installed on the rotating shaft, and a bending groove matched with a brush wire is formed in the bottom of the brush wire bending assembly; an electric brush assembly is clamped on the base, during bending, the brush wire bending assembly is driven by the rotating shaft to rotate and moves along the kidney-shaped groove under the guiding effect of the rotating shaft, and brush wires of the electric brush assembly are bent under the effect of the bending groove. The brush wire bending assembly is installed on the rotating shaft, brush wires are bent through movement of the rotating shaft, automatic bending forming of the brush wires in the electric brush assembly can be achieved, the forming precision and consistency of the opening angle of the brush wires are improved, and therefore the forming efficiency and quality of the electric brush assembly are improved.

The application relates to the technical field of carbon product processing equipment, and particularly discloses a carbon product continuous production method and device. The carbon product continuous production device comprises a workbench, a rotating disc rotatably connected to the middle part of the workbench, and a feeding mechanism, a drilling mechanism, a slotting mechanism, a threading mechanism and a discharging mechanism installed on the upper end face of the workbench; the feeding mechanism, the drilling mechanism, the slotting mechanism, the threading mechanism and the discharging mechanism are sequentially arranged around the rotating disc; and a plurality of clamps and adjusting mechanisms are installed on the rotating disc. The carbon product continuous production device is characterized in that a plurality of processing stations are arranged outside the rotating disc, the clamps are driven to rotate by the rotating disc, the positions of the clamps are adjusted, the states of the clamps are adjusted in cooperation with the adjusting mechanisms, the clamps can drive the carbon brushes to present different postures in different processing stations, the processing device is matched, the efficient continuous processing of the carbon brushes is realized, and the processing efficiency of the device is improved.

A carbon brush holder automatic assembly system includes a production line track, and a feeding part, a capacitor lantern holder assembly device, a brush box assembly device, an inductor assembly device, a torsion spring assembly device, a carbon brush assembly and welding device, and a detection device that are sequentially arranged in the carbon brush holder assembly direction. Through the above devices, the present invention assembles the lantern holder, capacitor, brush box, inductor, torsion spring, and carbon brush on the carbon brush holder respectively, and realizes the full-automatic assembly of the carbon brush holder in cooperation with the production line track and the robotic arm.

The utility model discloses a continuous electric brush assembling device, which belongs to the technical field of electric brush damping fin mounting equipment and comprises a processing table, and a conveying device is arranged on the processing table. The mounting frame is fixedly mounted on the front side wall surface of the processing table; the pasting device is arranged on the mounting frame; the pasting device comprises a second air cylinder fixedly installed on the rear side wall face of the installation frame. The mounting sleeve is arranged on the machining table; the vacuum suction cup is slidably mounted in the mounting sleeve and fixedly connected with the telescopic end of the second air cylinder; the connecting groove is formed in the top wall surface of the mounting sleeve and is T-shaped; the feeding frame is fixedly mounted on the top wall surface of the mounting sleeve and corresponds to the interior of the front side of the connecting groove; and an auxiliary mechanism. By arranging the mounting frame, the process of taking the damping fins can be removed, time is saved, production efficiency is improved, products can be continuously conveyed by arranging the conveying device, working efficiency is improved, products of various thicknesses can be operated, and the application range is widened.

The utility model discloses a spring feeding mechanism which comprises an installation clamp, a sleeve, a linear feeding mechanism and a push-in mechanism, the installation clamp is used for clamping a carbon brush with a brush box, the installation clamp is provided with a clamping hole, the upper portion of the installation clamp is in sliding connection with a lifting stop plate, and the stop plate can abut against the end of the brush box so as to restrain the position of the brush box; the middle part of the sleeve is used for sleeving a copper wire of the carbon brush, the outer part of the sleeve is used for sleeving a spring, and the sleeve and the clamping hole are correspondingly arranged; the linear feeding mechanism is fixedly connected with the sleeve, and the linear feeding mechanism is used for driving the sleeve to be close to or away from the mounting clamp; the push-in mechanism is arranged on the linear feeding mechanism in a telescopic mode, the telescopic path of the push-in mechanism is the same as the length direction of the sleeve, and the push-in mechanism is used for pushing out the spring arranged on the sleeve in a sleeving mode. A spring mounting procedure is fully automatically performed on the carbon brush with the brush box, and the working efficiency is greatly improved.

The invention provides a forming device and method for motor carbon brush machining, and relates to the technical field of motor carbon brush machining. Comprising a machining bottom plate, an overturning plate, side fixing plates and supporting legs, the side fixing plates are fixedly connected to the middles of the two ends of the upper surface of the machining bottom plate, sliding grooves are formed in the side fixing plates, hydraulic cylinders are fixedly connected to the middles of the top ends of the side fixing plates, and sliding blocks are fixedly connected to the extending ends of the hydraulic cylinders; a forming template is fixedly connected to the middle of the upper portion of the machining bottom plate, an overturning plate is arranged at the top end of the forming template, and fixing shafts are fixedly connected to the middles of the two ends of the overturning plate. By arranging the hydraulic cylinder, the sliding groove, the overturning plate and the forming module, through hydraulic extension of the hydraulic cylinder, downward movement of a sliding block in the sliding groove is achieved, and after movement, the machining and forming effect of the carbon brush is completed through descending operation of the overturning plate and matched extrusion of the forming module and the mold groove.

The utility model relates to a current transmission device (1) used for a rotor (2) of a motor (3), especially the motor (3) in a driving system (4) of an electrically-driven motor vehicle, the current transmission device comprises an annular disc (6), the annular disc at least partially surrounds a rotor shaft (7) of the rotor (2) on the circumference, and the current transmission device is positioned in an anti-rotation manner relative to the rotor shaft (7). At least one electrical contact (8) is arranged on the annular disc (6), which is loaded with a spring force in the radial direction by means of a spring element (9) and is guided in each case in a linear movement in the direction of the rotor shaft (7) in a guide (10), the contact element (8) rests against at least one circumferentially extending conductor track (11) of the rotor shaft (7) in an electrically conductive manner, and the one or more guide elements (10) are integrally formed with the annular disc (6).

The invention discloses a novel Ag-C fiber electric brush contact which comprises Ag fibers and C fibers, according to the total volume of the novel Ag-C fiber electric brush contact, the Ag fibers account for 20%-30% of the total volume of the novel Ag-C fiber electric brush contact, and the C fibers account for 5%-10% of the total volume of the novel Ag-C fiber electric brush contact; during preparation, the Ag fibers and the C fibers are cut into the same length and then are stacked and laid on the Cu net, the Cu net is used for wrapping the Ag fibers and the C fibers, the wires are welded, then the resin is used for filling and fixing the end face and coating the surface of the Cu net, and after the resin is hardened, the Ag-C fiber electric brush with the Ag fibers evenly separated by the C fibers is obtained. Through tests, the novel Ag-C fiber electric brush provided by the invention has the characteristics of stable friction coefficient (in a stable stage of a wear distance exceeding 100km), low noise, low wear rate (superior to 10 <-15 > m < 3 > / Nm) and the like.

The utility model relates to the technical field of conductive slip ring adjustment, in particular to an electric brush wire elbow tool which comprises a positioning assembly and an electric brush assembly. The tool is characterized in that the positioning assembly comprises a positioning strip, a pressing plate and a screw; the electric brush assembly comprises an electric brush positioning plate and electric brush wires, and the electric brush wires are important parts for transmitting power or signals, are made of precious metal and have high elasticity, high conductivity and high wear resistance; when the electric brush wires are bent, the conductive brush wires are inclined and cannot be in vertical contact with a ring groove, so that lateral force is generated, abrasion is increased, the service life of a friction pair is shortened, and the serious deflection can cause overlarge dynamic resistance fluctuation, transient breaking, groove jumping or short circuit in the operation process of the conductive slip ring. The electric brush wire bending device is simple in structure, low in manufacturing cost and convenient to operate, improves the labor efficiency and the adjusting precision, and solves the problem that the electric brush wires are inclined when being bent.

The utility model relates to the technical field of motor production, in particular to a stamping device for correcting a metal sheet. Comprising an assembling table, a manual press is fixedly arranged on the upper surface of the assembling table, an assembling mechanism is arranged under a pressing rod of the manual press, a linkage mechanism is arranged on the outer side of the assembling mechanism and the outer side of the pressing rod of the manual press, the assembling mechanism comprises a lower mold fixedly arranged on the upper surface of the assembling table, and a positioning groove is formed in the top of the lower mold; and movable grooves are symmetrically formed in the inner bottom surface of the positioning groove. According to the utility model, after the metal conducting strip is placed at the top of the clamping piece in the shell and the shell is placed in the positioning groove, the pressing rod of the manual press drives the assembling rod to vertically move downwards, and after the V-shaped groove abuts against the metal conducting strip, the position of the metal conducting strip is finely adjusted on the inner wall of the V-shaped groove, so that the metal conducting strip is corrected; and the metal conducting strip is pressed to be accurately clamped and fixed with the clamping piece, so that the condition of poor contact of the metal conducting strip in the shell is avoided.

The invention provides a gantry type conductive slip ring brush wire angle forming device and method. The gantry type conductive slip ring brush wire angle forming device comprises a bending base, a motor driving device, a ball screw transmission mechanism, a symmetrical bending connecting rod mechanism, a gantry type fixing rack, a main linear sliding table and a control system. A vertical motor drives a ball screw transmission mechanism, so that a linear platform on the ball screw transmission mechanism slides up and down, a connecting rod at the lower end of a bending connecting rod mechanism is driven to rotate around the bending direction of brush wires, and a row of brush wires on the left and right sides are symmetrically bent. The connecting rod mechanism and the transmission mechanism are fixed to the bending base and hoisted to the gantry rack. The main linear sliding table transports the brush wire base to move front and back, the bending mechanism continuously bends multiple rows of brush wires, and finally machining is completed. The device is high in bending precision, good in consistency and high in automation degree, and can effectively solve the practical problems in the current conductive slip ring brush wire angle forming mainly based on manual bending.

The utility model provides a steam turbine generator unit excitation carbon brush bottom arc polishing sliding tool which comprises a supporting plate and a polishing frame, a grinding material installation assembly is fixedly connected to the upper portion of the supporting plate, an installation plate is inserted into the polishing frame, a plurality of limiting frames are fixedly connected to the interior of the installation plate, carbon brush bodies are fixedly connected to the interiors of the limiting frames, and the carbon brush bodies are fixedly connected to the interiors of the carbon brush bodies. A plurality of limiting sliding grooves are formed in one side of the mounting plate, anti-falling sliding tables are slidably connected to the interiors of the limiting sliding grooves, pressure springs are fixedly connected to the upper portions of the anti-falling sliding tables, and one sides of the pressure springs are attached to the top of the carbon brush body; the abrasive paper fixing table is fixedly connected to the upper portion of the supporting plate, a plurality of carbon brush bodies are fixed through the limiting frame in the mounting plate, when the abrasive paper fixing table is inserted into the polishing frame, the pressure spring is pressed to generate constant downward pressure, the bottoms of the carbon brushes are tightly attached to abrasive paper, polishing is synchronously completed in front-back movement of the frame, bottom arc shapes are consistent, contact surfaces are uniform, and polishing efficiency and precision are improved.

The invention belongs to the technical field of carbon brush polishing devices, and discloses a graphite carbon brush polishing device which comprises a base and further comprises a polishing assembly, a graphite carbon brush polishing assembly and a graphite carbon brush polishing assembly. A supporting plate, wherein a carbon brush body is placed in the supporting plate; the fixing assembly is movably connected to the interior of the supporting plate; through cooperation of the pressing plates, the second clamping plates, the square clamping blocks and the like, the carbon brush body is fixed conveniently, rapidly and conveniently, the two sides of the carbon brush body are clamped through the two second clamping plates, then the carbon brush body is prevented from moving in the horizontal direction, and meanwhile the friction force and resistance of the rubber gaskets are used for fixing the carbon brush body. And finally, through cooperation of a square clamping block and a clamping groove, the position of a pressing plate after downward movement is locked, then the carbon brush body is conveniently, rapidly and accurately fixed, the situation that the polishing effect is affected due to looseness of the carbon brush body is avoided, and meanwhile the convenience and practicability of the device are improved.

The utility model discloses a clamping device with overrun protection, which comprises a base and a top plate, a clamping assembly is arranged on the outer wall of the top of the top plate, a second clamping plate is welded on the outer wall of the top of the top plate, and the clamping assembly comprises a limiting disc, a telescopic rod, a limiting hole, a fixing pin, a rotating handle, a torsion spring, a rotating disc and a clamping plate. Then, a rotating handle can be directly rotated to cancel the matching of a clamping plate and a clamping groove formed in the clamping plate, then a center rod II is rotated to enable a rotating rod I to drive the center rod I to push a telescopic rod, and a clamping plate I at the end part of the telescopic rod is matched with a clamping plate II to realize the limiting butt clamping of the workpiece. According to the carbon brush polishing device, clamping of a carbon brush can be limited, meanwhile, the auxiliary opening assembly is arranged and comprises an L-shaped sliding plate, clamping teeth, a matching head and an inclined groove, when the second center rod rotates, a gear is meshed with the clamping teeth to enable the L-shaped sliding plate to slide, then the collecting box slides outwards under the cooperation of the matching head and the inclined groove, and the polished carbon brush can be stored conveniently.

A method of producing an electric brush configured to transmit electric current between a stationary part and its moving counterpart, the method comprising: producing a composite material, including: a) mixing 85 to 99 wt% copper powder having a particle size of 10-500 µm with 0.5 to 5 wt% graphene to obtain a material mixture, the weight percentages being based on the composite material as a whole; and b) subjecting the material mixture to hot isostatic pressing at a temperature of between 650 and 950 °C and under a pressure of 1500 to 2000 bar for at least 1 hour to form the composite material. The method further comprises shaping the composite material as an electric brush.

In order to prevent or suppress damage to a bent portion of a brush formed by bending in a motor with a brush, this motor (100) with a brush comprises: a commutator (60) fixed to a rotary shaft (40); and a brush (80) in which one end-side portion (81) is pivotally supported, the other end-side portion (82) is in contact with the commutator (60), and a bent portion (85) is provided between the one end-side portion (81) and the other end-side portion (82). A recess (88) for increasing the density of the bent portion (85) is formed in the range of the bent portion (85) on a surface (86) of the brush (80).

The present application relates to the field of rail transit vehicle carbon brush technology, in particular to a rail transit grounding carbon brush device based on high-purity rare earth and graphite compound and a method thereof, comprising a grounding device, the grounding device comprising a brush holder, a pre-tightening piece arranged inside the brush holder and used for applying a pre-tightening force to the graphite carbon brush, a connecting piece connected to the bottom of the pre-tightening piece, and an electromagnetic driving piece used for regulating the pre-tightening force intensity of the pre-tightening piece through the connecting piece. The present application regulates the compression of the pressing plate on the first spring by constructing the linkage compensation structure of the electromagnetic driving piece, the connecting piece and the pre-tightening piece, so as to realize the automatic compensation of the pre-tightening force. The structure makes the contact pressure of the graphite carbon brush stable after wear, and avoids the poor conduction caused by insufficient pressure.

The application relates to the technical field of intelligent sensors, in particular to a production mold and production process of an electric brush for a conductive plastic sensor, which comprises the following steps: according to monitoring data of each stamping, analyzing the distance between the fillet radius and the target and the correlation between the contact pressure and the punch displacement, the yield strength and the elastic modulus, and determining data abnormal characteristic values; according to the monitoring data of each stamping, analyzing the difference between the actual measurement value and the model prediction value of the contact pressure, and the adjustment consistency of the punch displacement, the contact pressure and the fillet radius, and determining equipment abnormal characteristic values; according to the data abnormal characteristic values, the equipment abnormal characteristic values and the monitoring data of the current blanking period, correcting the next stamping stroke instruction, and then carrying out welding and detection processing. Through the determination of the data abnormal characteristic values and the equipment abnormal characteristic values, the correction accuracy of the stamping stroke instruction is effectively improved, and the production quality of the electric brush is improved.

The present application relates to the technical field of brush plate detection, in particular to a kind of brush plate electrode detection assembly line and detection method.It includes work platform, work platform is sequentially provided with two stamping detection table from left to right, a welding station, four unified detection table, an outline detection table and a dust absorption table, the lower side of stamping detection table, welding station, unified detection table, outline detection table is provided with positioning fixture, brush plate body is placed on positioning fixture.The present application detects the spring force by unified detection table, ensures that the force of each spring to push carbon brush meets the requirements, ensures the normal use of brush plate, and the four unified detection table is arranged to detect the spring corresponding to carbon brush, to ensure that the pressure of carbon rod in corresponding carbon brush on current collector ring is the same, so as to achieve the same wear degree of corresponding carbon rod, ensure that corresponding carbon rod can form complete loop with current collector ring, avoid the situation that the two are inconsistent.

The utility model relates to the field of carbon brush processing, in particular to a wire plugging mechanism for carbon brush processing. A plurality of supporting legs are connected to the lower portion of the workbench, a supporting frame is arranged on the upper portion of the workbench, an equivalent discharging structure and a movable pressing structure are arranged in the supporting frame, an automatic wire feeding and cutting device is arranged on the workbench, and an automatic discharging structure is arranged in the workbench. According to the device, copper powder is weighed through the weight sensor, so that the accuracy of copper powder discharging is guaranteed, and the machining precision is guaranteed; through the automatic wire feeding and cutting device, wire feeding and cutting can be automatically and continuously carried out, so that manual wire cutting is not needed, and manual operation is reduced; according to the device, through a movable pressing structure, the pressing air cylinder is used for conducting pressing connection on a wire, manual operation is reduced, meanwhile, the discharging hopper guides falling of copper powder, and the copper powder is prevented from being scattered; according to the device, a plurality of structures are matched for use, so that the manual labor is reduced, the systematic operation is realized, and the quality balance of products in different processing batches can be ensured.

The present invention provides a preparation method of a silver-containing copper-based carbon brush for a transportation vehicle, comprising the following steps: Step 1, weighing raw materials according to parts by weight: 80-82 parts of copper, 5-8 parts of a balance agent doped with calcined alumina, 5-7 parts of a property stability regulator, 4-6 parts of tin, 3-5 parts of molybdenum disulfide powder with a mesh size of 500, 1-3 parts of silver, and 4-6 parts of carbon powder with a mesh size of 1000. The present invention uses copper, tin, molybdenum disulfide powder with a mesh size of 500, silver, and carbon powder with a mesh size of 1000 as matrix materials, and through the addition of a balance agent doped with calcined alumina and a property stability regulator, the two are coordinated and synergistic, so that the conductivity, wear resistance, and mechanical strength of the obtained silver-containing copper-based carbon brush are balanced and improved, and the product has remarkable effects of salt corrosion resistance and thermal cycle stability resistance.

An electric brush configured to transmit electric current between a stationary part and its moving counterpart, the electric brush comprising a composite material for contacting the moving counterpart, the composite material comprising: a) 85 to 99 wt% copper; b) 0.5 to 5 wt% of graphene; c) 0.5 to 3 wt% of ceramic nanoparticles having a size of between 5 to 100 nm; wherein the weight percentages are based on the composite material as a whole.

[Grounding brush assembly] This grounding brush assembly (10) comprises a brush (16) and a mounting plate (18), the brush (16) being provided with a plurality of conductive fibers (20) and a support (22) inside which the conductive fibers (20) are housed, the support (22) comprising a mounting portion (24), first and second lateral flanges (26, 28) axially enclosing said conductive fibers (20), the support (22) of the brush (16) comprising at least one tab (40) distinct from the first and second lateral flanges (26, 28) and axially bearing against the mounting plate (18), the assembly (10) comprising at least one means (42) for securing said tab (40) to the mounting plate (18), said securing means (42) being distinct from the support (22) and mounting plate (18). Figure for abstract: Fig 1.

The invention discloses a thermal power carbon brush body copper plating and wire welding process, and relates to the technical field of thermal power carbon brushes. The carbon brush comprises a carbon brush body, the end face of the carbon brush body is of an arc-shaped structure, arc grooves which are evenly distributed are formed in the arc-shaped end face of the carbon brush body, the direction of the arc grooves is parallel to the rotation direction of the sliding ring, and exhaust grooves are formed in the arc-shaped end face of the carbon brush body and are obliquely arranged. Two ends of the exhaust groove are respectively arranged on the inner sides of diagonal corners of the arc-shaped end face of the carbon brush body. According to the invention, the problems that a carbon brush wire and a brush body of a slip ring chamber of a thermal generator set are in continuous high temperature, due to material characteristic difference and different expansion coefficients, microscopic distortion is found, high-temperature oxidation and local loosening occur at a wire riveting part, so that the connection resistance is in a multiplicative increasing trend, and the service life is prolonged can be effectively solved. The problem that the carbon brushes distributed on the surface of the slip ring are unevenly distributed due to annular airflow generated by the slip ring and the carbon brushes when the slip ring rotates rapidly is effectively solved.

The invention discloses a carbon brush composite material for an unmanned aerial vehicle motor and a preparation method of the carbon brush composite material, and the carbon brush composite material is prepared from the following components in parts by weight: 65-80 parts of electrolytic copper powder, 20-40 parts of crystalline flake graphite powder, 3-9 parts of modified carbon fibers, 3-9 parts of modified graphene oxide, 10-25 parts of phenolic resin powder and 3-6 parts of molybdenum disulfide. According to the prepared carbon brush, through cooperative enhancement of multi-dimensional carbon components, high unification of high conductivity, excellent mechanical strength and wear resistance is achieved, commutation sparks and operation noise are effectively restrained through the unique microstructure in the carbon brush, energy loss is reduced, the working current of a motor is stable, the rectification characteristic is excellent, shock resistance and wear resistance are achieved, and the service life of the motor is prolonged. And the stability and the service life of the unmanned aerial vehicle motor under a high-speed working condition are remarkably improved.

The utility model discloses a manual carbon brush machine, and relates to the technical field of carbon brush processing. The device comprises a support cabinet, a base block is arranged on the side wall of the support cabinet, an annular machining platen is rotationally installed on the base block, a rotating motor is arranged on the side wall of the support cabinet, an output shaft of the rotating motor is connected with the annular machining platen, and a supporting piece is fixedly installed on the side wall of the support cabinet. A power output mechanism is arranged on the supporting piece, a press-fitting mechanism is arranged on the lower side of the power output mechanism, a plurality of workpiece containing mechanisms are fixedly installed on the side wall of the annular machining table plate, a discharging mechanism is arranged on the side wall of the supporting piece, and the discharging mechanism comprises a connecting arc plate; and an L-shaped positioning plate is arranged on the side wall of the connecting arc plate. The carbon brush press-fitting device can improve the press-fitting efficiency of the carbon brush, can save human resources, reduces the production cost, and can reduce the labor intensity of workers.