69 results about "Grind" patented technology

The utility model relates to the technical field of gauge block grinding, in particular to a gauge block machining grinding plate device which comprises a base, the middle end of the top of the base is fixedly connected with an n-shaped frame, an electric push rod is fixedly installed at the middle end of the top of the n-shaped frame, and the extending end of the electric push rod is fixedly connected with a movable plate. Fixing blocks are fixedly connected to the left end and the right end of the bottom of the movable plate, driving threaded rods are movably connected to the inner sides of the two fixing blocks through bearings, and driving motors fixedly connected with the right sides of the driving threaded rods are fixedly mounted on the right sides of the fixing blocks. Through cooperation of the structures, the device has the advantage of being good in grinding quality, and the problems that most of grinding plates on existing grinding equipment grind gauge blocks in a reciprocating type linear track or a reciprocating type annular track, the same part of the gauge blocks can be repeatedly ground in the grinding mode, and the grinding efficiency is poor are solved. And grinding traces caused by repeated grinding can influence the surface quality of the gauge block.

The application discloses a high-concentricity gear quick clamping positioning grinding machine, and relates to the technical field of grinding machine, which comprises a machine body, a clamping mechanism is arranged on the machine body, the clamping mechanism comprises a mandrel, an even number of oil cavities are arranged in the mandrel in a circumferential equidistant manner, a motor one is fixedly installed in the machine body, a pressurizing expansion assembly is arranged on the top of the mandrel, a conveying assembly is arranged in the mandrel, the conveying assembly comprises a motor two which is fixedly installed in the machine body, an internal pipe is movably connected to the mandrel, and the internal pipe is movably connected to the mandrel. In the process of rotating and grinding the thin-wall gear, the application drives the spiral blade to rotate and moves axially in a small range, so that the hydraulic oil in each oil cavity in the mandrel forms circulating flow and is fully mixed, the oil temperature of each oil cavity in the mandrel is balanced, the technical problem that the mandrel is asymmetrically expanded due to uneven heating when the gear rotates and grinds and the concentricity of the gear is reduced is fundamentally solved, and the grinding machining precision of the gear is significantly improved.

The invention relates to the field of container surface decal, and aims to provide a plane cover fixed decal paper machine which solves the problem that decal paper is uneven after viscose is solidified, the two ends of a steering rod are rotationally connected with the driving end of a motor and a connecting rod respectively, the connecting rod is further rotationally connected with a sliding plate, and the sliding plate is arranged in a sliding mode; the flattening assembly comprises a first air cylinder, a grinding frame and a grinding wheel, the first air cylinder and the grinding frame are rotationally arranged on the sliding plate, the driving end of the first air cylinder is rotationally connected with the grinding frame, and the grinding wheel is rotationally arranged on the grinding frame; the steering rod drives the sliding plate to move through the connecting rod, the sliding plate circularly moves back and forth, so that the grinding frame circularly moves back and forth, the grinding frame drives the grinding wheel to move back and forth, the grinding wheel grinds stained paper on a plane cover back and forth, the stained paper is slowly attached to the plane cover, the stained paper is flatly attached to the plane cover, and the stained paper cannot be uneven. The problem that the stained paper is uneven after the mucilage glue is solidified is solved.

1. Name of the designed product: grinding disc (diamond). 2. Use of the designed product: used for grinding and polishing of hard and brittle difficult-to-grind materials. 3. Design points of the designed product: in the shape, pattern and their combination of the product. 4. Picture or photo best indicating the design points: perspective view.

This utility model provides a feeder for preventing thin materials from uncoiling, including a support platform, and further comprising: an uncoiler, a leveler, a laser probe, and an NC feeder fixedly mounted on the support platform, with the laser probe located between the leveler and the NC feeder. The cleaning brush of this application cleans the upper and lower edges of the thin material, while the grinding roller grinds and removes burrs from the thin material, facilitating better cleaning and burr removal. This avoids the risk of burrs and impurities on the material exacerbating the jamming or scratching of the leveling roller. An electric push rod drives the cleaning brush to rise, allowing for better adjustment of the cleaning brush position according to the material thickness. A motor rotation drives the grinding roller to move, allowing for better adjustment of the grinding roller position according to the material width. This allows the cleaning and grinding structures to effectively handle the cleaning and grinding of materials of different specifications, making the overall leveler more flexible in use.

The utility model relates to a numerical control milling machine grinding cutter which comprises a mandrel and a grinding wheel, the mandrel is fixedly connected with the grinding wheel, the grinding wheel is of a bowl-shaped structure, the working end of the grinding wheel is provided with a main machining face, and the peripheral side face of the grinding wheel is provided with a side machining face. The grinding wheel is designed to be of a bowl-shaped structure, the working end of the grinding wheel is provided with a main machining face, and the peripheral side face of the grinding wheel is provided with a side machining face. When a workpiece clamped on a chuck seat of a machine tool is ground, the position, with the quality problem, of the workpiece can be independently ground, particularly for a protruding hard block, the main machining face can be adopted for directly grinding the bottom face with the hard block, the side machining face can also be adopted for grinding an inner hole with the hard block, the roughness of the grinding surface can reach Ra0.4, and the grinding precision can be improved. The requirements of drawings are met.

The utility model discloses raw material grinding equipment for carbon black masterbatch production, which comprises a stand column, a lifting assembly and a grinding assembly, the first motor is arranged at the upper end of the stand column, the lead screw is arranged at the output end of the first motor and located in the sliding groove, the two lifting plates are arranged outside the lead screw in a threaded mode and are symmetrically arranged, two sections of reverse threads are arranged on the outer wall of the lead screw, and the opposite outer walls of the lifting plates are attached to the inner wall of the sliding groove; the grinding assembly comprises a second motor arranged on the outer side of the upper side lifting plate. According to the raw material grinding equipment for carbon black master batch production, the two lifting plates are driven to get close to each other through the arranged first motor, then the grinding disc and the grinding box are controlled to get close to each other, the grinding disc and the grinding box which get close to each other grind and extrude raw materials, and therefore the situation that grinding particles are different in size during grinding is prevented; and it is guaranteed that ground powder is fine enough, and the using effect is not affected.

The invention relates to a convenient-to-grind polycrystalline superhard material green body and a preparation method thereof, the convenient-to-grind polycrystalline superhard material green body comprises a polycrystalline superhard material green body formed at high temperature and high pressure, and the polycrystalline superhard material green body comprises a polycrystalline superhard material product body, a working allowance grinding layer and an easy-to-grind grinding layer, the polycrystalline superhard material product is characterized in that the polycrystalline superhard material product body is a finished product which is obtained by grinding a polycrystalline superhard material blank and meets specification requirements; the machining allowance grinding layer is made of a fine-particle polycrystalline superhard material which is homogeneous to a polycrystalline superhard material product body and is completely identical in particle size; and the grindable grinding layer is a grinding layer of a pressed surface, and is a grindable grinding layer of coarse particles homogeneous to a polycrystalline superhard material and a grindable grinding layer of non-homogeneous to the polycrystalline superhard material. The raw material of the grindable grinding layer is coarse particle polycrystalline superhard material product body homogeneous micro powder, the particle size of the grindable grinding layer is larger than that of a polycrystalline superhard material product body, the porosity of the grindable grinding layer is larger than that of the polycrystalline superhard material product body, the larger the porosity is, the poorer the abrasion resistance is, grinding is easy, the machining cost is reduced, and the machining efficiency is improved. The gas suction effect of the metal powder can also reduce the content of impurity gas in the product body, and the effect is achieved.

The utility model relates to the technical field of grinding devices, and discloses an anti-blocking fine grinding device for flour processing, which comprises a shell, a feed port arranged at the top of the shell, a discharge port arranged at the bottom of the shell, a discharge port arranged on the outer surface of the shell, and a grinding disc fixedly connected with the inner wall of the shell, a motor is fixedly connected to the top of the shell, a rolling part is fixedly connected to the output end of the motor, a dredging assembly is arranged on the top of the inner wall of the shell, in order to enable the equipment to better grind materials, the motor is started to enable the rolling part to rotate, meanwhile, the grinding disc is matched to grind the materials, and when the rolling part rotates, the dredging assembly is arranged on the inner wall of the shell. According to the device, the stirring rod fixedly connected to the outer surface of the rotating shaft of the rolling piece can rotate together, and the stirring rod can make contact with the protruding block when rotating and fixing are conducted, so that the end of the movable block is collided, a connecting rod drives materials in the feeding port to move, and the materials in the feeding port are dredged.

The present application relates to the field of grinding manufacturing, and particularly relates to a grinding method, device, equipment and medium for multiple types of products, which comprises the following steps: when the type of grinding product is changed, a preset grinding speed corresponding to the changed type of grinding product and a corresponding batch coefficient are obtained; a to-be-determined grinding speed is obtained according to the preset grinding speed and the batch coefficient; a first-piece grinding plan is determined according to the to-be-determined grinding speed; the first-piece grinding plan is sent to a grinding equipment, so that the grinding equipment grinds according to the first-piece grinding plan; sample grinding feedback information is received from the grinding equipment; a correction coefficient is determined according to the grinding feedback information; the batch coefficient is updated by using the correction coefficient; and batch grinding is performed by using APC feedback according to the updated batch coefficient and the preset grinding speed. The present application improves the accuracy of early-stage trial grinding when the type of grinding product is changed, improves the production efficiency of grinding, and reduces the production cost.

The present application relates to gem valve seat processing technical field, especially a kind of high-precision sapphire valve seat ball groove grinding method, first, the sapphire blank is finished sapphire valve seat's spherical groove;In new grinding device, sapphire valve seat precision forming blank is placed in center positioning hole, add fine grinding paste to start grinding device and grind fine sapphire valve seat after grinding, sapphire valve seat is placed in center positioning hole, after sapphire ball is bonded in the lower end of swing lever, it is placed in the spherical groove of sapphire valve seat, add fine grinding paste and grind;Matched sapphire ball is placed in the spherical groove of sapphire valve seat after fine grinding, after adding grinding liquid, grinding damper pad and sapphire ball are contacted to start grinding;The present application realizes the automation of high-precision gem valve seat and batch production, so that valve seat surface finish effect and quality are more stable, the efficiency of valve seat is improved, the pass rate of product is greatly improved, and production cost is reduced.

The utility model relates to the technical field of liquid inlet valve core's external grinding, especially, a kind of liquid inlet valve core's external grinding device, it is by setting limit stop and clamping mechanism, so that the external grinding process of liquid inlet valve core, material can be clamped and limited, ensure that material does not deviate when grinding, improve processing quality;Including residue storage mechanism;Still including grinding mechanism, limit stop, pressing mechanism and two sets of clamping mechanism, grinding mechanism is installed on residue storage mechanism, limit stop is installed on residue storage mechanism, pressing mechanism is installed on residue storage mechanism, two sets of clamping mechanism are installed on limit stop;Residue storage mechanism stores residue, grinding mechanism grinds, limit stop limits, pressing mechanism is pressed, clamping mechanism clamps.

This utility model provides a double-unit stone mill, belonging to the field of grinding technology. It includes a fixed frame and a rapid grinding assembly. Two support seats are provided on one side of the fixed frame, and each support seat has a base on its top. The rapid grinding assembly includes two connecting frames on the top of the base. Through the provided upper grinding disc, material is conveniently fed through one of the feeders to two discharge pipes during use. The two discharge pipes respectively feed material into two feeding hoppers. The feeding hoppers transport the material to multiple conveying hoppers via bidirectional sliding blocks, entering the upper and lower grinding discs. At this time, the user activates the torque motor via a controller, causing the torque motor to drive the lower grinding disc to rotate and grind the material. Both upper and lower grinding discs grind simultaneously. The ground powder is discharged through a receiving disc into the discharge head and falls into a recycling hopper for collection. Through the two sets of upper and lower grinding discs, rapid grinding is achieved, improving work efficiency.

The utility model discloses a special grinding device for plastic preparation, which comprises a barrel-shaped box body, a bearing is fixedly arranged on the inner wall of the barrel-shaped box body, a grinding disc is fixedly arranged on the inner ring of the bearing, and grinding holes distributed at equal intervals are formed in the outer wall of the grinding disc. A vertically-downward material pushing barrel is fixedly arranged on one side of the top of the barrel-shaped box body through an opening, and the outer wall of the bottom of the material pushing barrel is in clearance fit with the outer wall of the top of the material grinding disc. The air inlet fan at the top of the air inlet sleeve blows air to the abrasive disc, strong airflow can directly act on the surface of the abrasive disc and in abrasive holes, attached plastic powder is effectively blown away in time, it is guaranteed that the abrasive disc and the abrasive holes are always in a clean state, the effective working area of the abrasive disc and the abrasive holes is maintained, and the service life of the abrasive disc is prolonged. The plastic raw materials can make full contact with the material grinding structure and are fully ground, the powder grinding efficiency is improved, the ground plastic powder is uniform in particle size, and therefore the overall quality of products is improved.

This invention relates to the field of integrated bearing grinding technology, specifically to a multi-face integrated grinding process for the outer ring of a cross-roller bearing and its dedicated grinding device. The technical solution involves: clamping the outer ring of the cross-roller bearing once via the workpiece spindle base, and adjusting the axis of the bearing outer ring to form a 45° grinding inclination angle with the axis of the grinding end of the dedicated grinding device in the horizontal plane. The forming grinding wheel is controlled to cut into the outer ring of the cross-roller bearing radially, so that the first, second, and third grinding surfaces simultaneously contact and grind. The beneficial effect of this invention is that by using a dressed forming grinding wheel for 45° compound entry grinding, the outer circular surface, the stepped outer diameter surface, and the stepped end face of the grinding wheel simultaneously contact the workpiece, completing the machining of the outer circle, stepped outer diameter, stepped end face, and connecting fillet in one operation, completely eliminating the positioning errors caused by multiple clamping and equipment turnover in traditional processes.

The utility model discloses a vitamin C sodium phosphate grinding device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a grinding box body, the top of the bottom plate and the top of the grinding box body are fixedly connected with a frame body, and the middle end of the top of the frame body is fixedly provided with a motor through a bolt. The motor drives the rotating rod to rotate, the rotating rod drives the movable frame body to move, the movable frame body drives the grinding roller to rotate to grind and extrude sodium ascorbyl phosphate, the grinding effect of sodium ascorbyl phosphate can be further achieved, and the scraping plate can be driven to move while the grinding roller grinds the sodium ascorbyl phosphate; due to the fact that a certain distance exists between the scraping plate and the grinding roller, when materials adhere to the surface of the grinding roller, the materials can make contact with the scraping plate, the materials are scraped off through the scraping plate, adhesion of the grinding roller is avoided, meanwhile, the movable frame body drives the cleaning plate to move while moving, the bottom of the inner cavity of the grinding box body is cleaned through the cleaning plate, and raw materials are prevented from adhering to the bottom of the grinding box body.

The utility model discloses a raw material grinding device for cosmetic processing, including shell, grinding block, grinding tooth, drive assembly, crushing blade and transmission assembly, put raw material into the crushing cavity, the drive assembly that sets up drives and connects the crushing blade and grinding block rotation, and the crushing blade rotates and preliminarily crushes the raw material in the crushing cavity, and the raw material that passes primary crushing will fall into the grinding cavity at the bottom, and the grinding block that sets up rotates and further grinds and crushes the raw material in the grinding cavity, so that the raw material is further ground and refined, the drive assembly will drive the transmission assembly to run in this process, and the transmission assembly drives the reciprocating rolling of the rolling cylinder, and the rolling barrel further rolls and refines the raw material falling in the rolling cavity, so that the raw material grinding and crushing are more thorough, and the raw material that passes grinding and rolling and crushing thoroughly will fall into the collecting cavity set at the bottom through the sieve hole, facilitating subsequent centralized collection and processing.

The utility model discloses a railway turnout elastic clamp grinding and polishing system, which relates to the technical field of railway turnout elastic clamp processing and comprises a workpiece rotating device, a first robot, a second robot, a radial floating electric spindle, an axial floating electric spindle and at least one positioning and clamping tool. The workpiece rotating device carries the positioning and clamping tool and the railway turnout elastic clamp to be ground and polished to rotate to a machining area or a workpiece changing area, the first robot carries the radial floating electric spindle to move, the radial floating electric spindle is provided with a grinding wheel rod, and the grinding wheel rod grinds and polishes an inner arc part on the railway turnout elastic clamp to be ground and polished in the machining area. The second robot carries an axial floating motorized spindle to move, louvre blades are assembled on the axial floating motorized spindle, and the louvre blades grind and polish the inner edge part, the fillet part, the outer edge part and the outer arc part of the railway turnout elastic clamp to be ground and polished in the machining area; according to the utility model, the efficiency and the product consistency can be improved, and the operation risk is reduced.

The utility model discloses a kind of grinder, especially design a coaxial degree maintaining assembly, grinding device and grinder, the coaxial degree maintaining assembly is sleeved in the connecting shaft of grinder assembly, when the inner cutter head of grinder assembly rotates and cooperates outer cutter to grind coffee beans, when the arbitrary radial force that the coaxial degree maintaining assembly is used to inner cutter head is greater than the force in opposite direction, it can be positioned to connecting shaft in the local range along the radial direction of inner cutter head, make inner cutter head produce local displacement in the opposite direction of this radial force. Compared with prior art, therefore, when inner cutter head rotates and cooperates outer cutter to grind coffee beans, not only can guarantee that the effort of each part of inner cutter head and outer cutter is substantially same, so that coffee beans in different positions of grinding area all have same grinding degree, but also unnecessary wear caused by local excessive effort when inner cutter head and outer cutter grind coffee beans can be prevented, improve the grinding precision when coffee beans are ground.

This utility model discloses a grinding structure for a high-precision coffee bean grinder, including a motor. A bean feeding shaft is fixedly connected to the output shaft at the front end of the motor. An inner grinding blade assembly is fixed outside the bean feeding shaft. A cavity is fixed to the front end of the motor, and an adjusting seat is fixed to the front end of the cavity. A threaded adjusting disc is connected to the front end of the adjusting seat via a threaded connection. A scale indicator is fixed outside the threaded adjusting disc. A blade holder is placed inside the adjusting seat. The front end of the blade holder abuts against the rear end of the threaded adjusting disc, and an outer grinding blade assembly is fixed to the rear end of the blade holder, located in front of the inner grinding blade assembly. This utility model uses a rotating inner grinding blade assembly. The short motor output shaft can meet the perpendicularity requirements of the rotor shaft. The outer grinding blade assembly can move back and forth, thereby adjusting the gap between the inner and outer grinding blade assemblies and thus adjusting the coarseness of the coffee bean grind. The guide post and spring settings ensure a high degree of concentricity between the inner and outer grinding blade assemblies, resulting in uniform coffee bean grinding.

This utility model discloses a coating device for aluminum profile processing, including a worktable with a spray head and a clamp. Along the processing direction, a surface grinding roller, a vertical grinding roller, and a brush are arranged sequentially. The clamp drives the aluminum profile through the surface grinding roller, vertical grinding roller, brush, and spray head in sequence. The surface grinding roller and vertical grinding roller grind the upper surface and sides of the aluminum profile respectively. The brush cleans the debris from the upper surface and sides of the aluminum profile. The spray head sprays the upper surface and sides of the aluminum profile. A fan is installed on the worktable, connected to a suction head. A collection box is connected between the suction head and the fan to collect debris from the surface of the aluminum profile. The surface grinding roller and vertical grinding roller achieve rough treatment of the upper surface and sides of the aluminum profile, improving the adhesion of the coating to the aluminum profile surface. The brush and suction head remove debris from the aluminum profile surface, preventing debris residue and improving the coating effect.

The utility model provides a combined type output thrust disc for a vertical mill gear box and the vertical mill gear box, and belongs to the technical field of thrust discs, the combined type output thrust disc comprises a labyrinth ring, a grinding ring and a thrust disc, the labyrinth ring, the grinding ring and the thrust disc are formed in a split mode, the labyrinth ring is fixed on the thrust disc through a first fastener, and the grinding ring is fixed on the thrust disc through a second fastener. The grinding ring is fixed to the bottom of the thrust disc through a second fastener. The combined output thrust disc has the advantages that the combined output thrust disc is formed by combining the labyrinth ring, the grinding ring and the thrust disc which are formed in a split mode, the structure is simple, machining is convenient, cost is low, product quality is stable and reliable, and the using effect is good.

The wheel type structure comprises a wheel type grinding roller device and an arc-shaped grinding disc device, and the arc radius r of the outer circumference of a rolling wheel of the wheel type grinding roller device is smaller than the arc radius R of an arc-shaped ring groove of the arc-shaped grinding disc device. A grinding area is formed between a roller of the wheel type grinding roller device and an arc-shaped ring groove of the arc-shaped grinding disc device, and the inner side gap of the grinding area is larger than the outer side gap of the grinding area. The front section of the grinding area, namely the inner side of the grinding area, is used for crushing large raw coal materials, and the rear section of the grinding area, namely the outer side of the grinding area, is used for grinding finished product pulverized coal. By means of the specially-formed grinding area, raw coal is not prone to sliding after entering the grinding area, the raw coal is fully ground from inside to outside and from coarse to fine, the area of the grinding area is increased through matching of the arc-shaped arc faces under the same diameter structure, the grinding and crushing capacity and efficiency are improved, and therefore the adaptive capacity of HP and RP coal mills to inferior coal is improved.

Disclosed in the present invention is a burr cleaning assembly, comprising a mounting base, a cleaning cylinder, and a powder sweeping cylinder; the mounting base is configured to be detachably mounted on a grind chamber of a machine body; the cleaning cylinder movably passes through the mounting base and is configured to cover the exterior of an inner burr; the inner side wall of the cleaning cylinder is provided with at least one group of first cleaning bristles configured to be in contact with the outer wall of the inner burr; the powder sweeping cylinder is rotatably sleeved on the cleaning cylinder, and the bottom wall of the powder sweeping cylinder is provided with at least one group of second cleaning bristles configured to be in contact with the bottom of the grind chamber and to have a transmission fit with a powder sweeping plate. The first cleaning bristles are used for, when the inner burr rotates, cleaning residue adhered to the outer wall of the inner burr; and the second cleaning bristles are used for being driven to rotate together when the powder sweeping plate rotates, and for sweeping out to a powder outlet channel the residue which has been cleaned out. Thus, using the burr cleaning assembly of the present invention saves labor and effort; furthermore, the first cleaning bristles on the cleaning cylinder can perform comprehensive cleaning on the outer wall of the inner burr, avoiding the problem of residual powder on the inner burr and having a better cleaning effect; at the same time, the second cleaning bristles on the powder sweeping cylinder can completely sweep out residue which has fallen to the bottom of the grind chamber, thereby avoiding the problem of residual powder in the grind chamber and ensuring the cleanliness of the grind chamber.

The present application relates to a kind of superhard material abrasive tool for difficult-to-machine material and grinding process, the abrasive tool includes base one, pressing plate and multiple grinding pieces, base one is annular structure, multiple grinding pieces are distributed along the circumference of base one and are spliced into annular structure, and the water channel that passes through radially is formed between two grinding pieces;Pressing plate is annular structure, it is fixedly installed in one end of base one, for tightly pressing multiple grinding pieces;Mixed cooling channel for passing in grinding fluid and / or cooling fluid is formed between pressing plate and base one, liquid inlet is formed between one end of pressing plate and one end of base one, which is communicated with mixed cooling channel, multiple water channels are respectively communicated with mixed cooling channel;Each grinding piece includes multiple abrasives, the thickness h of each grinding piece and the particle size b of abrasive satisfy b≤h<2b.The beneficial effects of the present application are reasonable design, simple process, can be aimed at the particularity of different difficult-to-grind materials, superimposed auxiliary means, improve grinding efficiency and grinding quality.

A cutting tool may comprise a blade portion forming a distal end of the cutting tool. The blade portion may comprise a knife edge, and this knife edge may be defined by a grind surface. The blade port

The utility model discloses a cone-column-shaped spring grinding device with an automatic feeding and discharging structure, which comprises a feeding assembly, and the feeding assembly forms a hollow pipeline with the diameter between the large-end diameter and the small-end diameter of a cone-column-shaped spring; the feeding assembly is used for storing and distributing the conical-column-shaped springs flowing out of the loading assembly; the grinding assembly is used for grinding the large end face and the small end face of the conical-cylinder-shaped spring. And the discharging assembly is connected with the grinding assembly and can form air pressure difference to apply suction force to the conical-cylinder-shaped spring. The large end and the small end of the conical-column-shaped spring are automatically distinguished by arranging the screening pipe, the conical-column-shaped spring is automatically fed into the grinding disc to be ground by arranging the discontinuous feeding piece, the conical-column-shaped spring is automatically separated from the grinding disc by arranging the air suction port to adsorb the conical-column-shaped spring, and then automatic discharging is achieved. And the grinding efficiency of the large end and the small end of the conical-cylinder-shaped spring is improved, and then large-batch production of the conical-cylinder-shaped spring is achieved.

The utility model discloses an abrasive belt grinding device for a horizontal lathe, which relates to the technical field of lathes and comprises a track arranged on one side of the top end of the horizontal lathe, a sliding seat matched with the horizontal lathe is arranged on the outer side of the track, a sliding plate is arranged at the top end of the sliding seat, and the sliding plate is connected with the sliding seat through a driving mechanism. A vertical plate is arranged on one side of the top end of the sliding plate, a dismounting mechanism is arranged on one side of the vertical plate, an abrasive belt is arranged on one side of the dismounting mechanism, and an adjusting mechanism matched with the dismounting mechanism is arranged on one side of the interior of the abrasive belt. Under the matching action of the sliding seat, the sliding plate, the dismounting mechanism, the abrasive belt and the adjusting mechanism, the abrasive belt with the proper mesh number and the proper length can be selected for grinding according to different workpieces, the abrasive belt replacement process is simple and convenient, and the speed and the quality of the workpieces are improved.

The invention discloses energy-saving coating grinding equipment and a grinding method, and relates to the technical field of coating grinding, the energy-saving coating grinding equipment comprises an equipment shell, and the equipment shell is provided with a power motor, a grinding assembly and a stirring assembly; the grinding assembly comprises a grinding cylinder and a grinding shaft. The end, close to the stirring assembly, of the grinding cylinder is connected with a discharging bent pipe. The power motor is used for driving the grinding shaft to rotate around a first direction, so that the grinding shaft and the grinding cylinder jointly grind the energy-saving coating in the grinding cylinder; the stirring assembly comprises a stirring tank rotationally connected with the equipment shell, a stirring cover is installed on the discharging bent pipe, and a stirring piece in threaded connection is arranged on the stirring cover in a penetrating mode. The stirring tank is used for receiving the grinding coating discharged by the discharging bent pipe, and the power motor is further used for driving the stirring tank to rotate in the second direction so that the stirring piece can stir the grinding coating in the stirring tank. The energy-saving coating grinding equipment solves the problem that in the prior art, integrated design of grinding and stirring is difficult to achieve through energy-saving coating grinding equipment.

To provide a rotary tool which makes a portion of a connection structure less likely to be damaged even when a diameter of a bit is 5 mm or smaller.SOLUTION: In a rotary tool, a bit 10, in which a grind stone 16 having a diameter of 5 mm or smaller is joined to a tip of a base metal 11 having a lubrication water passage, is detachably connected to a cylindrical shank 1 to use the rotary tool. The bit includes: the base metal having a joint part 12, to which the grind stone is joined, at one end side; a first screw 15 located at the other end of the base metal; and a first inclined surface 14 formed adjacent to the first screw. The shank includes: a second screw 5 located at one end and configured to engage with the first screw; and a second inclined surface 4 which is formed adjacent to the second screw and contacts with the first inclined surface.SELECTED DRAWING: Figure 3