CN107617469B - Alloy roller press roller sleeve, tool and manufacturing process - Google Patents
Alloy roller press roller sleeve, tool and manufacturing process Download PDFInfo
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- CN107617469B CN107617469B CN201710810386.6A CN201710810386A CN107617469B CN 107617469 B CN107617469 B CN 107617469B CN 201710810386 A CN201710810386 A CN 201710810386A CN 107617469 B CN107617469 B CN 107617469B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to a roller sleeve, a tool and a manufacturing process of an alloy roller press, which comprise a substrate for rolling materials and a central hole coaxially arranged in the substrate and used for penetrating a roller shaft; a roll groove is formed in the outer circumferential surface of the base body by cold working or hot working; the rolling grooves are arranged in a circumferential array by taking the axial line of the central hole as a reference, and each rolling groove is arranged along the axial direction of the central hole. According to the invention, the strength and rigidity of the roller sleeve are improved through the roller grooves, the roller materials are uniform, and as the deformation of the roller sleeve, roller keys can be welded or directly cast on a substrate, and the roller grooves are formed between the roller keys. The mode of machining grooves on the surface of the substrate is preferred, and the roll sleeve surface can be strengthened due to the fact that the roll sleeve is large in size specification, large in tonnage and high in alloy material hardness, milling and linear cutting cannot be adopted, grinding is preferred, soft grinding wheels such as a pigeon grinding wheel are preferred, and the machining scheme is adopted.
Description
Technical Field
The invention relates to a roll sleeve, a tool and a manufacturing process of an alloy roll press.
Background
At present, the roller sleeve of the roller press is applied to cement factories or mining equipment, mineral aggregates such as ceramics can be crushed, common materials such as stones can be crushed, the roller sleeve belongs to vulnerable parts, the service life of the roller sleeve is short, the wear resistance is poor, as the roller sleeve adopts a structure that two ends support the middle part in a suspended manner, the material particles in the roller sleeve are large, the roller sleeve is not uniformly worn, the roller sleeve hardness is low, and the roller sleeve is inconvenient to disassemble.
How to provide a roller sleeve which has reasonable design, high hardness, good wear resistance, long service life and convenient disassembly becomes a technical problem to be solved urgently.
At present, no particularly good method is adopted for processing grooves on the outer surface of a roller sleeve, in order to improve the strength and the hardness of the roller sleeve, the grooves are generally formed on the outer side wall of the roller sleeve, welding grooves are generally adopted, and although a process for casting the grooves is provided in the patent 2013102193396, the scheme belongs to the hot processing technology for forming grooves, a large number of hot processing defects (such as sand holes, looseness and the like) exist, and the metallographic structure of the surface is changed to have surface defects, so that the service life of the roller sleeve is influenced. The applicant of the patent claims improves the above-mentioned hot working to cold working, and the groove is polished by a hand grinding wheel after scribing, but the machining is extremely time-consuming and labor-consuming due to high tool hardness and large volume, and the machined surface quality is improved. How to design a device which can replace a handheld grinding wheel and drive the grinding wheel to move repeatedly along the axial direction becomes a technical problem to be solved urgently.
Disclosure of Invention
In practical use, the grooves are machined through cold through the surface of the roller sleeve, so that defects in hot and cold machining can be avoided, for example, the grooves are polished through grinding wheels (such as hand grinding wheels or grinding wheels with mechanical arms or trolley driven grinding wheels and other common modes), but when the grooves are polished, the grooves are required to be pre-scribed, namely, samples are manufactured and punching holes are punched, groove lines are scribed, the efficiency is low, the use is time and labor-consuming, the roller sleeve is not suitable for mass production, and the roller sleeve is large in volume and heavy in mass and is generally tens of tons or more than hundred tons.
The technical problem to be solved by the present invention is generally to provide a rotary device for a grooving device for a roll sleeve; the automatic roll sleeve can replace manual scribing, automatic roll sleeve overturning and accurate positioning are achieved. The technical problems to be solved in detail and the advantages to be achieved are described in detail below and in conjunction with the detailed description.
The invention aims to solve the technical problems of providing an alloy roller press roller sleeve, a tool and a manufacturing process in general; the technical problems to be solved in detail and the advantages to be achieved are described in detail below and in conjunction with the detailed description.
In order to solve the problems, the invention adopts the following technical scheme:
the alloy roller press roller sleeve comprises a substrate for rolling materials and a central hole coaxially arranged in the substrate and used for penetrating a roller shaft; a roll groove is formed in the outer circumferential surface of the base body by cold working or hot working; the rolling grooves are arranged in a circumferential array by taking the axial line of the central hole as a reference, and each rolling groove is arranged along the axial line direction of the central hole; the rolling groove is a groove ground by a grinding wheel on the outer circumferential surface of the base body.
As a further improvement of the above technical scheme:
the rolling grooves are arranged in parallel.
A work hardening layer is provided on both the outer circumferential surface of the base body and the surface of the roll groove.
4. A tooling for processing grooves on the outer side wall of the roller sleeve of the alloy roller press according to any one of claims 1-3, comprising a pit, a rotating device arranged in the pit, a travelling device crossing the pit and a grooving device arranged on the travelling device;
the roller sleeve of the roller press is horizontally arranged on the rotating device, and the rotating device drives the roller sleeve of the roller press to rotate around the horizontal axis of the roller sleeve of the roller press;
the grooving device is driven by the traveling device to repeatedly move along the side bus direction of the roller sleeve of the roller press, and a grinding wheel of the grooving device performs rolling grooving movement on the upper bus of the roller sleeve of the roller press.
As a further improvement of the above technical scheme:
the rotating device comprises a rotating base arranged in the pit, a rotating upright post arranged on the right side of the rotating base and the upper part of the rotating upright post is exposed out of the pit, a rotating right bearing frame and a rotating left bearing frame coaxially arranged on the rotating base, a rotating right driving wheel rotatably arranged on the rotating right bearing frame and a rotating left driving wheel rotatably arranged on the rotating left bearing frame;
the two rotary left bearing frames are symmetrically arranged at two sides of the grooved roller sleeve of the roller press, and the two rotary right bearing frames are symmetrically arranged at two sides of the grooved roller sleeve of the roller press;
a rotary transmission shaft is horizontally inserted into a bearing hole of the rotary right bearing frame and a bearing hole of the rotary left bearing frame which are positioned on the same side, and two ends of the rotary transmission shaft are respectively in transmission connection with the corresponding rotary right driving wheel and the rotary left driving wheel;
a rotary control motor is arranged on the rotary base, the rotary control motor is in transmission connection with a rotary speed reducer, and an output shaft of the rotary speed reducer is in transmission connection with a rotary left driving wheel;
a rotary control motor is arranged on the rotary base, the rotary control motor is in transmission connection with a rotary speed reducer, and two output shafts of the rotary speed reducer are respectively in transmission connection with corresponding rotary left driving wheels;
a travelling device carrying a slotting device is arranged above the pit, and the axial lead of the rotary transmission shaft is the same as the travelling direction of the travelling device;
two rotary initial slot position sensors for detecting two inner side walls of the corresponding groove and two rotary end slot position sensors for detecting two inner side walls of the corresponding groove are arranged in the pit;
the rotary initial slot position sensor and the rotary end slot position sensor are symmetrically arranged at two sides of a slotting grinding wheel of the slotting device, and the symmetrical center lines of the two rotary initial slot position sensors, the symmetrical center lines of the two rotary end slot position sensors and the center line of the slotting grinding wheel of the slotting device are intersected on the axis of a roller sleeve of the roller press;
the included angle between the symmetrical central lines of the two rotary initial groove position sensors and the central line of the grooving grinding wheel of the grooving device is the same as the included angle between the central lines of the two adjacent grooves; the included angle between the symmetrical central lines of the two rotation termination groove position sensors and the central line of the grooving grinding wheel of the grooving device is the same as the included angle between the central lines of the two adjacent grooves;
when the grooving grinding wheel of the grooving device cuts the groove of the roller sleeve of the roller press, the symmetrical center line of the two rotary initial groove position sensors is overlapped with the center line of the last groove after cutting;
when the grooving grinding wheel of the grooving device cuts the last groove of the roller sleeve of the roller press, the symmetrical center lines of the two rotation termination groove position sensors coincide with the center line of the groove at the beginning of cutting;
the distance between the two rotary initial groove position sensors and the distance between the two rotary end groove position sensors are the same as the width of the groove of the roller sleeve of the roller press;
the two rotary initial slot position sensors and the two rotary end slot position sensors are electrically connected with the input end of a processor, the output end of the processor is electrically connected with a controller, and the controller is electrically connected with a rotary control motor.
The grooving device comprises a grooving frame, a grooving support frame arranged on the grooving frame, a grooving lifting motor arranged on one side of the grooving support frame, a grooving main transmission shaft erected on the grooving support frame and in transmission connection with the grooving lifting motor, a grooving lifting mechanism in transmission connection with the grooving main transmission shaft, a grooving vertical shaft arranged at the lower end of the grooving lifting mechanism and penetrating through the grooving frame, a grooving lifting frame arranged below the grooving vertical shaft, a grooving lifting static guide rail arranged at the lower end of the grooving frame, a grooving lifting movable guide rail which is arranged on the grooving lifting static guide rail in a sliding manner and is positioned on one side of the grooving lifting frame, and a grooving groove grinding wheel head which is driven by the motor and is arranged at the lower end of the grooving lifting frame and used for grooving a roller sleeve of a roller press which is horizontally placed;
the grinding wheel of the grooved groove grinding wheel head is a white pigeon grinding wheel;
the slotting machine frame is arranged on the travelling device;
the slotting lifting mechanism is of a gear rack structure or a screw rod and nut structure;
a slotting shaft shoulder is arranged on the slotting vertical shaft, and a slotting tightening spring is arranged between the lower surface of the slotting shaft shoulder and the upper surface of the slotting machine frame;
the grooving device is arranged on the walking device above the pit where the roller sleeve of the roller press is arranged;
the stroke of the grooving lifting mechanism is equal to the abrasion thickness of the grinding wheel of the grooving groove grinding wheel head;
the lower end of the grooving lifting frame is provided with a grooving chamfering grinding wheel head which is positioned on the right side of the grooving grinding wheel head and used for grinding the outer edge of the grooving.
The walking device comprises a walking static guide rail transversely crossing the pit from side to side, a walking driving source arranged at the right end of the walking static guide rail, a walking driving device which is in transmission connection with the walking driving source and is arranged at the right side of the grooving device, and a walking movable guide rail frame which is arranged on the walking static guide rail in a sliding manner and is connected with the grooving device;
a walking tool setting sensor for measuring a tool setting point of a grinding wheel of the slotting device is arranged on the right side of the walking static guide rail, the walking tool setting sensor is electrically connected with a processor, and the processor adjusts the position of the tool setting point of the grinding wheel by controlling a lifting mechanism of the slotting device;
a traveling air outlet cooler with an inlet communicated with the blower is arranged on the right side of the traveling guide rail frame, and an outlet of the traveling air outlet cooler is communicated with a traveling air outlet cooling nozzle for blowing cold air to a grinding groove of a grinding wheel of the grooving device, wherein the traveling air outlet cooling nozzle is positioned on one side of the grinding wheel of the grooving device;
a walking air suction pipeline with an inlet communicated with an exhaust fan is arranged at the left side of the walking guide rail frame, and a walking air suction duckbill for collecting dust generated by grinding grooves by grinding wheels of the grooving device is communicated with an outlet of the walking air suction pipeline;
a travel end travel switch for controlling travel of the travel driving device is arranged at the left end of the travel static guide rail, and a travel starting end travel switch for controlling travel of the travel driving device is arranged at the right end of the travel static guide rail;
a numerical control diamond grinding wheel trimming pen for trimming the grinding wheel of the slotting device is arranged on the left side of the pit;
a walking grinding wheel diameter measuring sensor for measuring the grinding wheel diameter of the worn grooving device is arranged on the left side of the pit;
when the walking driving source is a motor, the walking driving device is an electric push rod or a gear rack mechanism;
when the walking driving source is a pump station, the walking driving device is an air cylinder or a hydraulic cylinder;
the running gear is located above the pit in which the roller press roller sleeve is horizontally placed, and the grooving device is driven by the running gear to carry out groove processing on the roller press roller sleeve.
A manufacturing process of a roller sleeve of an alloy roller press comprises the following steps,
firstly, obtaining a matrix of a roller sleeve of an alloy roller press through centrifugal casting;
secondly, carrying out stress relief annealing treatment on the matrix;
the third step, including the following procedures,
step a, firstly, machining the surface roughness Ra25 of the outer circle rough machining area of the substrate by a horizontal lathe or a vertical lathe; then, machining the surface roughness Ra12.5-25 of the inner hole rough machining area of the center hole through a horizontal lathe or a vertical lathe; thirdly, machining the surface roughness Ra12.5 of the outer circle rough machining area of the substrate by a horizontal lathe or a vertical lathe, wherein the outer circle diameter of the machined substrate reaches the size required by a drawing;
step b, sequentially grinding the rolling grooves on the outer circumferential surface of the substrate by using a grinding wheel;
and d, the intersecting edges of the inner side wall of the double-roller groove and the substrate are dulled by a grinding wheel.
As a further improvement of the above technical scheme:
the third step is followed by three groups of conditions;
in the first case, performing a fourth step of carburizing the outer circumferential surfaces of the roll pressing groove and the base body;
in the second case, performing a fourth step of carburizing the outer circumferential surfaces of the roll pressing groove and the base body; after the fourth step, the fifth step is carried out, and the diameter of the inner hole rough machining area of the machining center hole reaches the required size of the drawing;
in the third case, performing a fourth step of carburizing the outer circumferential surfaces of the roll pressing groove and the base body; after the fourth step, the fifth step is carried out, and the diameter of the inner hole rough machining area of the machining center hole reaches the required size of the drawing; after the fifth step, a sixth step is performed, and the roll groove and the outer circumferential surface of the base body are subjected to quenching treatment.
Step b and/or step d are carried out by means of the tooling described above.
The invention has reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, fund saving, compact structure and convenient use.
The beneficial effects of the present invention are not limited to this description, but are described in more detail in the detailed description section for better understanding.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a roll sleeve according to the present invention.
FIG. 2 is a schematic view of the end face of the roll cover of the present invention.
FIG. 3 is a schematic view of the interior of the roll cover of the present invention.
Fig. 4 is a schematic structural diagram of the tooling of the present invention.
Fig. 5 is a schematic structural view of the grooved grinding wheel of the present invention.
Fig. 6 is a schematic structural view of the grooved chamfering grinding wheel head of the present invention.
FIG. 7 is a schematic view of a process flow configuration of a roll cover of a roll squeezer according to the invention.
Wherein: 100. a base; 101. a central bore; 102. a rolling groove; 103. a carburized layer; 104. a work hardening layer; 105. a process hollow cavity; 106. a shoulder hole; 107. an oil filling hole; 108. and an oil plug.
1. Roller sleeve of roller press; 2. a rotating device; 3. a slotting device; 4. Numerical control diamond grinding wheel pencil; 5. a walking device; 6. a pit;
200. rotating the upright post; 201. a rotating base; 202. rotating the right bearing frame; 203. rotating the transmission shaft; 204. rotating the right driving wheel; 205. rotating the left driving wheel; 206. rotating the left bearing frame; 207. a rotation speed reducer; 208. a rotation control motor; 209. rotating the initial slot sensor; 210. a rotation termination slot sensor;
301. a slotting machine frame; 302. a slotted support; 303. a grooving lifting motor; 304. slotting main transmission shafts; 305. a grooving lifting mechanism; 306. grooving shaft shoulders; 307. the spring is tightly propped against the groove; 308. grooving the vertical shaft; 309. grooving lifting static guide rail; 310. grooving lifting movable guide rails; 311. grooving lifting frames; 312. grooving groove grinding wheel head; 313. grooving chamfering grinding wheel head;
501. a walking static guide rail; 502. a travel drive source; 503. a walking driving device; 504. a walking guide rail frame; 505. a walking grinding wheel diameter measuring sensor; 506. a walking tool setting sensor; 507. a travel end travel switch; 508. a travel switch at the starting end of travel; 509. a travelling air outlet cooler; 510. a walking air outlet cooling nozzle; 511. a walking induced draft pipeline; 512. walking induced draft duckbill;
1000. an outer circle rough machining area; 1001. and (5) an inner hole rough machining area.
Detailed Description
As shown in fig. 1 to 3, the alloy roller press roller sleeve of the present embodiment includes a base body 100 for rolling a material, and a center hole 101 coaxially provided in the base body 100 for penetrating a roller shaft; a roll groove 102 is cold-worked or hot-worked on the outer circumferential surface of the base body 100; the roll grooves 102 are arranged in a circumferential array with the axis of the center hole 101 as a reference, and each roll groove 102 is arranged along the axis direction of the center hole 101.
The invention improves the strength and rigidity of the roller sleeve by the roller groove 102, the rolled material is uniform, and as a variant of the invention, the roller keys can be welded or directly cast on the substrate, and the roller grooves are formed between the roller keys. The mode of machining grooves on the surface of a substrate is preferred, and because the size specification of the roller sleeve is large (the general diameter is more than 4m and the length is more than 2 m), the tonnage is large (the general mass is more than 5 t), the hardness of alloy materials is high (the general HRC is more than 60), the milling and linear cutting of a machine tool cannot be adopted, the grinding is preferred, the grinding of soft sand wheels such as a white pigeon grinding wheel is preferred, the machining scheme is adopted, the surface of the roller sleeve can be reinforced, and the roller sleeve has no surface defects such as looseness, sand holes and oxide skin, and has good service effect and long service life.
The rolling grooves 102 are arranged in parallel or the rolling grooves 102 are arranged in a spiral mode or the rolling grooves 102 are arranged in a reticulate pattern mode, so that the requirements of different rolling are met.
Carburized layer 103 is provided on both the outer circumferential surface of substrate 100 and the surface of roll groove 102, and carburized treatment can be continued to the surface thereof after the completion of the cold working, thereby improving the strength and wear resistance thereof.
The roll groove 102 is a groove formed on the outer circumferential surface of the base body 100 by grinding with a grinding wheel, and is formed by work hardening the surface thereof to improve the strength thereof.
The work hardening layer 104 is arranged on the outer circumferential surface of the substrate 100 and the surface of the roll groove 102, and the hardening layer is designed, so that the surface structure is more compact and the structure is more compact.
A carburized layer 103 may be provided between the work hardening layer 104 and the outer circumferential surface of the base body 100 and between the work hardening layer 104 and the outer circumferential surface of the roll groove 102.
A carburized layer 103 may be provided on the outer surface of the work hardening layer 104.
For easy disassembly and assembly, the center hole 101 comprises a process hollow cavity 105 positioned in the middle of the inside of the base body 100 and shoulder holes 106 symmetrically arranged at two ends of the process hollow cavity 105; the shaft shoulder hole 106 is contacted with a roll shaft of the roll squeezer; an oil filling hole 107 is arranged between the end face of the base body 100 and the shaft shoulder hole 106, the oil filling hole 107 is arranged inside the base body 100, an inlet of the oil filling hole 107 is positioned on the end face of the base body 100 and is provided with an oil plug 108, and an outlet of the oil filling hole 107 is communicated with the corresponding shaft shoulder hole 106. When the roll sleeve is disassembled and assembled, hydraulic oil is filled, so that an oil film is arranged between the roll sleeve and the shaft, and the roll sleeve is convenient to disassemble and assemble.
The outer diameter of the middle part of the matrix 100 is larger than that of the end parts of the matrix 100, and the middle part of the matrix 100 is smoothly transitionally arranged from the two end parts, so that the defect of large deflection of the middle part is avoided, the strength is improved, and the uniform rolling material is ensured.
The invention has reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, fund saving, compact structure and convenient use.
The tooling for machining grooves on the outer side wall of the roller sleeve of the alloy roller press in the embodiment as shown in fig. 4-6 comprises a pit 6, a rotating device 2 arranged in the pit 6, a travelling device 5 crossing over the pit 6 and a grooving device 3 arranged on the travelling device 5;
the roller press roller sleeve 1 is horizontally arranged on the rotating device 2, and the rotating device 2 drives the roller press roller sleeve 1 to rotate around the horizontal axis of the roller press roller sleeve 1;
the grooving device 3 is driven by the running device 5 to repeatedly move along the side bus direction of the roller press roller sleeve 1, and a grinding wheel of the grooving device 3 moves on the upper bus of the roller press roller sleeve 1 to form a roller groove 102.
The rotating device of the slotting device for roller sleeves of the embodiment comprises a rotating base 201 installed in a pit 6, a rotating upright post 200 arranged on the right side of the rotating base 201 and the upper part of which is exposed out of the pit 6, a rotating right bearing bracket 202 and a rotating left bearing bracket 206 coaxially arranged on the rotating base 201, a rotating right driving wheel 204 rotatably arranged on the rotating right bearing bracket 202 and a rotating left driving wheel 205 rotatably arranged on the rotating left bearing bracket 206;
the two rotary left bearing frames 206 are symmetrically arranged on two sides of the grooved roll press roll sleeve 1, and the two rotary right bearing frames 202 are symmetrically arranged on two sides of the grooved roll press roll sleeve 1;
a rotary transmission shaft 203 is horizontally inserted into a bearing hole of the rotary right bearing frame 202 and a bearing hole of the rotary left bearing frame 206 which are positioned on the same side, and two ends of the rotary transmission shaft 203 are respectively in transmission connection with a corresponding rotary right driving wheel 204 and a corresponding rotary left driving wheel 205;
a rotation control motor 208 is provided on the rotation base 201, the rotation control motor 208 is connected to a rotation speed reducer 207 in a transmission manner, and an output shaft of the rotation speed reducer 207 is connected to the rotation left drive wheel 205 in a transmission manner.
According to the invention, the large-tonnage large-volume roller sleeve 1 of the roller press is horizontally placed in the pit 6, so that the installation height of a grooving device is reduced, the crane is convenient to hoist, the comprehensive utilization of the three-dimensional space of a factory building is realized, the two ends of the left rotary driving wheel 205 and the right rotary driving wheel 204 are supported, the V-shaped support is realized, the self-positioning is realized, and meanwhile, the rotation of the roller sleeve 1 of the roller press is realized through the synchronous rotation of the rotary control motor 208, the rotary speed reducer 207, the left rotary driving wheel 205 and the right rotary driving wheel 204, so that the grooving grinding wheel is driven by the travelling device 5 to perform grooving motion, the workload is greatly reduced, and the working efficiency is improved.
A rotation control motor 208 is provided on the rotation base 201, and the rotation control motor 208 is connected with a rotation speed reducer 207 in a transmission manner, and two output shafts of the rotation speed reducer 207 are respectively connected with corresponding rotation left driving wheels 205 in a transmission manner. The double-shaft co-rotating output shaft is driven to rotate, so that double driving is realized, and rotating resistance is reduced.
A travelling device 5 (a common linear driving device can drive a grinder to reciprocate on a guide rail) carrying the slotting device 3 is arranged above the pit 6, and the axial lead of the rotary transmission shaft 203 is the same as the travelling direction of the travelling device 5.
Two rotation initial slot position sensors 209 for detecting two inner side walls of the corresponding groove and two rotation end slot position sensors 210 for detecting two inner side walls of the corresponding groove are arranged in the pit 6;
the rotary initial slot position sensors 209 and the rotary end slot position sensors 210 are symmetrically arranged at two sides of a slotting grinding wheel of the slotting device 3, and the symmetrical center lines of the two rotary initial slot position sensors 209, the symmetrical center lines of the two rotary end slot position sensors 210 and the center line of the slotting grinding wheel of the slotting device 3 are intersected on the axis of the roller sleeve 1 of the roller press;
the included angle between the symmetrical center line of the two rotary initial groove position sensors 209 and the center line of the grooving grinding wheel of the grooving device 3 is the same as the included angle between the center lines of the two adjacent grooves; the included angle between the symmetrical center line of the two rotation termination groove position sensors 210 and the center line of the grooving grinding wheel of the grooving device 3 is the same as the included angle between the center lines of the two adjacent grooves;
when the grooving grinding wheel of the grooving device 3 cuts the groove of the roller sleeve 1 of the roller press, the symmetrical center lines of the two rotary initial groove position sensors 209 are overlapped with the center line of the last groove after cutting;
when the grooving grinding wheel of the grooving device 3 cuts the last groove of the roller sleeve 1 of the roller press, the symmetrical center lines of the two rotation termination groove position sensors 210 coincide with the center line of the groove which is cut at the beginning;
the distance between the two rotation initial slot position sensors 209 and the distance between the two rotation end slot position sensors 210 are the same as the width of the groove of the roller sleeve 1 of the roller press;
the two rotation initiation slot position sensors 209 and the two rotation termination slot position sensors 210 are electrically connected with an input end of a processor, an output end of the processor is electrically connected with a controller, and the controller is electrically connected with the rotation control motor 208.
In order to improve the intelligence and automation of the invention, the two side walls of the corresponding groove are sensed by the rotation groove initial sensor 209 and the rotation end groove sensor 210 (namely common reflection sensors such as photoelectric sensors or infrared sensors); by limiting the mounting position of the sensor, the sensor can more reasonably detect whether the groove is in place. Further, when the two rotary groove position initial sensors 209 detect that the grooves are in place, the grooves are long, so that reflected signals cannot be received, the position to be grooved of the grooved grinding wheel cutting roller sleeve 1 corresponding to the grinding wheel is correct, and the processor controls the grinding wheel of the grooving device 3 to groove; when two rotation end slot position sensors 210 sense the slots, it is indicated that only one slot remains waiting for slotting, the slotting device 3 works completely (i.e. the running device 5 repeats a stroke and returns to the working origin), and the processor reminds the operator of unloading by controlling the alarm module. The invention realizes intelligent monitoring and automatic overturning.
The grooving device for a roller sleeve of the embodiment comprises a grooving frame 301, a grooving support frame 302 arranged on the grooving frame 301, a grooving lifting motor 303 arranged on one side of the grooving support frame 302, a grooving main transmission shaft 304 erected on the grooving support frame 302 and in transmission connection with the grooving lifting motor 303, a grooving lifting mechanism 305 in transmission connection with the grooving main transmission shaft 304, a grooving vertical shaft 308 arranged at the lower end of the grooving lifting mechanism 305 and penetrating through the grooving frame 301, a grooving lifting frame 311 arranged below the grooving vertical shaft 308, a grooving lifting static guide rail 309 arranged at the lower end of the grooving frame 301, a grooving lifting movable guide rail 310 arranged on the grooving lifting static guide rail 309 in a sliding manner and positioned on one side of the grooving lifting frame 311, and a grooving groove grinding wheel head 312 which is driven by a motor and is arranged at the lower end of the grooving lifting frame 311 and used for grooving the roller sleeve 1 of a roller press which is horizontally arranged.
The invention has the following points: automatic feed control is achieved by using a grooving lifting motor 303-, a grooving main transmission shaft 304-, a grooving lifting mechanism 305-, a grooving vertical shaft 308-a grooving groove grinding wheel head 312/a grooving chamfering grinding wheel head 313, the depth of a machined groove is guaranteed to be uniform, groove machining and chamfering separation are achieved by using the grooving groove grinding wheel head 312/the grooving chamfering grinding wheel head 313, and therefore cutting efficiency is improved.
The grinding wheel of the grooved groove grinding wheel head 312 is a white pigeon grinding wheel.
The grooving rack 301 is arranged on the running gear 5, and the running gear 5 can be a common linear driving structure such as a screw nut, a cylinder or a gear rack.
The slotted elevating mechanism 305 is of a rack and pinion structure or a lead screw and nut structure.
A slotted shaft shoulder 306 is arranged on the slotted vertical shaft 308, a slotted jacking spring 307 is arranged between the lower surface of the slotted shaft shoulder 306 and the upper surface of the slotted frame 301, and the gap of the slotted lifting mechanism 305 is eliminated through the reverse acting force of the slotted jacking spring 307, so that the transmission precision is improved.
Preferably, the device is mounted on a travelling device 5 above a pit 6 in which the roll jacket 1 of the roll squeezer is placed.
The stroke of the grooving lifting mechanism 305 is equal to the abrasion thickness of the abrasive wheel of the grooving groove abrasive wheel head 312, so that when the abrasive wheel is abraded to the specified thickness, the abrasive wheel cannot be processed continuously, the abrasive wheel is prevented from being broken and flying to be cracked, and the safety is ensured.
A grooving chamfering grinding wheel head 313 which is positioned on the right side of the grooving grinding wheel head 312 and used for grinding the outer edge of the grooving is arranged at the lower end of the grooving lifting frame 311.
The invention replaces a hand grinding wheel to realize automatic compensation of the processing amount, improves the processing efficiency and reduces the processing strength.
As shown in fig. 4 to 6, the running gear 5 for grooving the roller sleeve of the present embodiment includes a running static rail 501 that spans right and left above the pit 6, a running drive source 502 that is provided at the right end of the running static rail 501, a running drive device 503 that is in driving connection with the running drive source 502 and that is provided at the right side of the grooving device 3, and a running movable rail frame 504 that is provided on the running static rail 501 in a sliding manner and that is connected with the grooving device 3.
The grinding machine (slotting device 3) is arranged on the walking guide rail frame 504, and the walking driving device 503 drives the grinding machine to be used for the left and right sides, so that the existing handheld scheme is replaced, automatic and mechanical production is realized, the efficiency is improved, and the labor intensity is reduced.
A walking tool setting sensor 506 for measuring the tool setting point of the grinding wheel of the slotting device 3 is arranged on the right side of the walking static guide rail 501, the walking tool setting sensor 506 is electrically connected with a processor, and the position of the tool setting point of the grinding wheel is adjusted by the processor through controlling the lifting mechanism of the slotting device 3. Because the workpiece has high hardness, large size and serious abrasion of the grinding wheel, when one groove is machined and the next groove is machined, the position is needed to be re-aligned, the position is known through the walking tool alignment sensor 506 (the reflection sensor), then the grinding wheel is driven to descend through the lifting mechanism of the grooving device 3 (namely the grinding wheel machine) until the lowest point of the grinding wheel is detected by the walking tool alignment sensor 506, so that automatic tool alignment is realized, and the uniformity of the groove size is ensured.
A traveling air-out cooler 509 with an inlet communicated with a blower is arranged on the right side of the traveling guide rail frame 504, a traveling air-out cooling nozzle 510 for blowing cold air to the grinding wheel grinding groove of the grooving device 3 is communicated with the outlet of the traveling air-out cooler 509, and the traveling air-out cooling nozzle 510 is positioned on one side of the grinding wheel of the grooving device 3. Thereby cold air cooling is realized to mix with in the slot and the abrasive grain blows up, guarantees the clean of slot.
A walking air suction pipeline 511 with an inlet communicated with an exhaust fan is arranged on the left side of the walking guide rail frame 504, and a walking air suction duckbill 512 for collecting dust generated by grinding grooves of grinding wheels of the grooving device 3 is communicated with an outlet of the walking air suction pipeline 511. Dust particles raised to cold air are realized through air draft. Iron powder is collected, so that air pollution is prevented, operators are prevented from inhaling, and the factory building is kept clean.
A travel final travel switch 507 for travel control of the travel drive device 503 is provided at the left end of the travel stationary rail 501, and a travel start travel switch 508 for travel control of the travel drive device 503 is provided at the right end of the travel stationary rail 501. And the working reversing control is realized through a travel switch.
A traveling wheel diameter measuring sensor 505 for measuring the wheel diameter of the worn grooving apparatus 3 is provided on the left side of the pit 6. The diameter of the processed grinding wheel is measured by the walking grinding wheel diameter measuring sensor 505, and information is transmitted to the processor, and the processor controls the numerical control diamond grinding wheel trimming pen 4 to trim the grinding wheel according to the information of the sensor.
A numerical control diamond grinding wheel pencil 4 for grinding wheel shaping of the slotting device 3 is arranged at the left side of the pit 6.
When the travel drive source 502 is a motor, the travel drive device 503 is an electric putter or a rack-and-pinion mechanism.
When the travel drive source 502 is a pump station, the travel drive device 503 is a cylinder or a hydraulic cylinder.
The traveling device 5 is positioned above the pit 6 in which the roller press roller sleeve 1 is horizontally arranged, and the grooving device 3 is driven by the traveling device to carry out groove processing on the roller press roller sleeve 1.
As shown in fig. 7, the manufacturing process of the alloy roll squeezer roll cover of the embodiment comprises the following steps,
firstly, obtaining a matrix 100 of a roller sleeve of an alloy roller press through centrifugal casting;
secondly, performing stress relief annealing treatment on the substrate 100;
the third step, including the following procedures,
step a, firstly, machining the surface roughness Ra25 of the outer circle rough machining region 1000 of the substrate 100 by a horizontal lathe or vertical lathe; then, the surface roughness Ra12.5-25 of the inner hole rough machining area 1001 of the center hole 101 is machined by a sleeper or a vertical lathe; thirdly, machining the surface roughness Ra12.5 of the outer circle rough machining area 1000 of the matrix 100 by a horizontal lathe or a vertical lathe, wherein the outer circle diameter of the machined matrix 100 reaches the size required by the drawing;
step b, grinding the rolling grooves 102 on the outer circumferential surface of the substrate 100 by a grinding wheel in sequence;
step c, the intersecting edges of the inner side walls of the twin roll groove 102 and the substrate 100 are dulled by a grinding wheel.
The third step is followed by three groups of conditions;
in the first case, the fourth step is performed, and the pair roll pressing groove 102 and the outer circumferential surface of the base body 100 are carburized;
in the second case, the fourth step is performed, and the pair roll pressing groove 102 and the outer circumferential surface of the base body 100 are carburized; after the fourth step, performing a fifth step, wherein the diameter of the inner hole rough machining area 1001 of the machining center hole 101 reaches the required drawing size;
in the third case, the fourth step is performed, and carburization treatment is performed on the outer circumferential surfaces of the twin roll pressing groove 102 and the base 100; after the fourth step, performing a fifth step, wherein the diameter of the inner hole rough machining area 1001 of the machining center hole 101 reaches the required drawing size; after the fifth step, a sixth step is performed, and the outer circumferential surfaces of the twin roll tank 102 and the substrate 100 are quenched.
Step b and/or step c are carried out by means of the tooling described above.
The roller sleeve with no defect on the surface, high surface processing quality, long service life and high production efficiency is obtained through the process.
The invention has reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, fund saving, compact structure and convenient use.
The modifier rotation before the subject of the present invention is to indicate that the above-mentioned parts are literally belonging to the rotating device, but not to the grooving device 3 or the running device 5.
The present invention has been fully described for the purposes of clarity and understanding, and is not necessarily limited to the prior art.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; it is obvious to a person skilled in the art to combine several embodiments of the invention. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. A tool for processing grooves on the outer side wall of a roller sleeve of an alloy roller press is characterized in that: the alloy rolling machine comprises a pit (6), a rotating device (2) arranged in the pit (6), a travelling device (5) crossing the pit (6) and a grooving device (3) arranged on the travelling device (5), wherein an alloy rolling machine roll sleeve comprises a base body (100) for rolling materials, a central hole (101) coaxially arranged in the base body (100) and used for penetrating a roll shaft, and a rolling groove (102) is formed in the outer circumferential surface of the base body (100) in a cold working or hot working mode; the rolling grooves (102) are arranged in a circumferential array by taking the axial line of the central hole (101) as a reference, and each rolling groove (102) is arranged along the axial line direction of the central hole (101); the rolling grooves (102) are grooves which are ground on the outer circumferential surface of the substrate (100) through grinding wheels, and the rolling grooves (102) are arranged in parallel; a work hardening layer (104) is arranged on the outer circumferential surface of the base body (100) and the surface of the roll pressing groove (102);
the roller sleeve (1) of the roller press is horizontally arranged on the rotating device (2), and the rotating device (2) drives the roller sleeve (1) of the roller press to rotate around the horizontal axis of the roller sleeve (1) of the roller press;
the grooving device (3) is driven by the running device (5) to repeatedly move along the side bus direction of the roller sleeve (1) of the roller press, and a grinding wheel of the grooving device (3) moves in a way of opening a roller groove (102) on the upper bus of the roller sleeve (1) of the roller press;
the rotating device (2) comprises a rotating base (201) installed in the pit (6), a rotating upright post (200) arranged on the right side of the rotating base (201) and the upper part of which is exposed out of the pit (6), a rotating right bearing bracket (202) and a rotating left bearing bracket (206) coaxially arranged on the rotating base (201), a rotating right driving wheel (204) rotatably arranged on the rotating right bearing bracket (202) and a rotating left driving wheel (205) rotatably arranged on the rotating left bearing bracket (206);
the two rotary left bearing frames (206) are symmetrically arranged at two sides of the grooved roller sleeve (1) of the roller press, and the two rotary right bearing frames (202) are symmetrically arranged at two sides of the grooved roller sleeve (1) of the roller press;
a rotary transmission shaft (203) is horizontally inserted into a bearing hole of a rotary right bearing bracket (202) and a bearing hole of a rotary left bearing bracket (206) which are positioned on the same side, and two ends of the rotary transmission shaft (203) are respectively in transmission connection with a rotary right driving wheel (204) and a rotary left driving wheel (205) which correspond to each other;
a rotary control motor (208) is arranged on the rotary base (201), the rotary control motor (208) is connected with a rotary speed reducer (207) in a transmission way, and an output shaft of the rotary speed reducer (207) is connected with a rotary left driving wheel (205) in a transmission way;
a rotary control motor (208) is arranged on the rotary base (201), the rotary control motor (208) is connected with a rotary speed reducer (207) in a transmission way, and two output shafts of the rotary speed reducer (207) are respectively connected with a corresponding rotary left driving wheel (205) in a transmission way;
a travelling device (5) carrying a slotting device (3) is arranged above the pit (6), and the axial lead of the rotary transmission shaft (203) is the same as the travelling direction of the travelling device (5);
two rotary initial slot position sensors (209) for detecting two inner side walls of the corresponding groove and two rotary end slot position sensors (210) for detecting two inner side walls of the corresponding groove are arranged in the pit (6);
the rotary initial slot position sensor (209) and the rotary end slot position sensor (210) are symmetrically arranged at two sides of a slotting grinding wheel of the slotting device (3), the symmetrical center lines of the two rotary initial slot position sensors (209), the symmetrical center lines of the two rotary end slot position sensors (210) and the center line of the slotting grinding wheel of the slotting device (3) are intersected on the axis of the roller sleeve (1) of the roller press;
the included angle between the symmetrical central lines of the two rotary initial groove position sensors (209) and the central line of the grooving grinding wheel of the grooving device (3) is the same as the included angle between the central lines of the two adjacent grooves; the included angle between the symmetrical center line of the two rotation termination groove position sensors (210) and the center line of the grooving grinding wheel of the grooving device (3) is the same as the included angle between the center lines of two adjacent grooves;
when the grooving grinding wheel of the grooving device (3) cuts the groove of the roller sleeve (1) of the roller press, the symmetrical center line of the two rotary initial groove position sensors (209) coincides with the center line of the last groove after cutting;
when the grooving grinding wheel of the grooving device (3) cuts the last groove of the roller sleeve (1) of the roller press, the symmetrical center line of the two rotation termination groove position sensors (210) coincides with the center line of the groove which is cut at the beginning;
the distance between the two rotation initial slot position sensors (209) and the distance between the two rotation end slot position sensors (210) are the same as the width of the groove of the roller sleeve (1) of the roller press;
the two rotation initial slot position sensors (209) and the two rotation end slot position sensors (210) are electrically connected with the input end of a processor, the output end of the processor is electrically connected with a controller, and the controller is electrically connected with a rotation control motor (208);
the grooving device (3) comprises a grooving frame (301), a grooving support frame (302) arranged on the grooving frame (301), a grooving lifting motor (303) arranged on one side of the grooving support frame (302), a grooving main transmission shaft (304) erected on the grooving support frame (302) and in transmission connection with the grooving lifting motor (303), a grooving lifting mechanism (305) in transmission connection with the grooving main transmission shaft (304), a grooving vertical shaft (308) arranged at the lower end of the grooving lifting mechanism (305) and penetrating through the grooving frame (301), a grooving lifting frame (311) arranged below the grooving vertical shaft (308), a grooving lifting static guide rail (309) arranged at the lower end of the grooving frame (301), a grooving lifting movable guide rail (310) arranged on the grooving lifting static guide rail (309) in a sliding mode and positioned on one side of the grooving lifting frame (311), and a grooving groove grinding wheel head (312) driven by the motor and arranged at the lower end of the grooving lifting frame (311) and used for grooving a roller sleeve (1) of a roller press which is horizontally arranged;
the grinding wheel of the grooved groove grinding wheel head (312) is a white pigeon grinding wheel;
the slotting machine frame (301) is arranged on the traveling device (5);
the slotting lifting mechanism (305) is of a gear-rack structure or a screw-nut structure;
a slotting shaft shoulder (306) is arranged on the slotting vertical shaft (308), and a slotting tightening spring (307) is arranged between the lower surface of the slotting shaft shoulder (306) and the upper surface of the slotting machine frame (301);
the grooving device (3) is arranged on the traveling device (5) above the pit (6) on which the roller sleeve (1) of the roller press is arranged;
the stroke of the grooving lifting mechanism (305) is equal to the abrasion thickness of the grinding wheel of the grooving grinding wheel head (312);
a grooving chamfering grinding wheel head (313) which is positioned on the right side of the grooving groove grinding wheel head (312) and used for grinding the outer edge of the groove is arranged at the lower end of the grooving lifting frame (311);
the walking device (5) comprises a walking static guide rail (501) which transversely spans above the pit (6), a walking driving source (502) which is arranged at the right end of the walking static guide rail (501), a walking driving device (503) which is in transmission connection with the walking driving source (502) and is arranged at the right side of the grooving device (3), and a walking movable guide rail frame (504) which is arranged on the walking static guide rail (501) in a sliding manner and is connected with the grooving device (3);
a walking tool setting sensor (506) for measuring the tool setting point of the grinding wheel of the slotting device (3) is arranged on the right side of the walking static guide rail (501), the walking tool setting sensor (506) is electrically connected with a processor, and the processor adjusts the tool setting point of the grinding wheel by controlling a lifting mechanism of the slotting device (3);
a traveling air-out cooler (509) with an inlet communicated with a blower is arranged on the right side of the traveling guide rail frame (504), a traveling air-out cooling nozzle (510) for blowing cold air to a grinding wheel grinding groove of the grooving device (3) is communicated with an outlet of the traveling air-out cooler (509), and the traveling air-out cooling nozzle (510) is positioned on one side of the grinding wheel of the grooving device (3);
a walking air suction pipeline (511) with an inlet communicated with an exhaust fan is arranged at the left side of the walking guide rail frame (504), and a walking air suction duckbill (512) for collecting dust generated by a grinding wheel grinding groove of the grooving device (3) is communicated with an outlet of the walking air suction pipeline (511);
a travel end travel switch (507) for controlling the travel of the travel driving device (503) is arranged at the left end of the travel static guide rail (501), and a travel start travel switch (508) for controlling the travel of the travel driving device (503) is arranged at the right end of the travel static guide rail (501);
a numerical control diamond grinding wheel pencil (4) for shaping the grinding wheel of the slotting device (3) is arranged on the left side of the pit (6);
a walking grinding wheel diameter measuring sensor (505) for measuring the grinding wheel diameter of the worn grooving device (3) is arranged on the left side of the pit (6);
when the walking driving source (502) is a motor, the walking driving device (503) is an electric push rod or a gear rack mechanism;
when the walking driving source (502) is a pump station, the walking driving device (503) is a cylinder or a hydraulic cylinder;
the traveling device (5) is positioned above a pit (6) in which the roller press roller sleeve (1) is horizontally arranged, and the grooving device (3) carries out groove processing on the roller press roller sleeve (1) under the driving of the traveling device.
2. A manufacturing process of a roller sleeve of an alloy roller press is characterized by comprising the following steps of: comprises the steps of,
firstly, obtaining a matrix (100) of a roller sleeve of an alloy roller press through centrifugal casting;
secondly, carrying out stress relief annealing treatment on the substrate (100);
the third step, including the following procedures,
step a, firstly, machining the surface roughness Ra25 of the outer circle rough machining area (1000) of the substrate (100) by a horizontal lathe or a vertical lathe; then, machining the surface roughness Ra12.5-25 of the inner hole rough machining area (1001) of the center hole (101) by a horizontal lathe or a vertical lathe; thirdly, machining the surface roughness Ra12.5 of the outer circle rough machining area (1000) of the substrate (100) by a horizontal lathe or a vertical lathe, wherein the outer circle diameter of the machined substrate (100) reaches the size required by a drawing;
step b, sequentially grinding the rolling grooves (102) on the outer circumferential surface of the substrate (100) by using a grinding wheel;
step c, the intersecting edges of the inner side wall of the double-roller pressing groove (102) and the substrate (100) are dulled by a grinding wheel;
three cases are followed by the third step:
in the first case, performing a fourth step of carburizing the outer circumferential surfaces of the pair-roller pressing groove (102) and the base body (100);
in the second case, performing a fourth step of carburizing the outer circumferential surfaces of the pair-roller pressing groove (102) and the base body (100); after the fourth step, a fifth step is carried out, wherein the diameter of an inner hole rough machining area (1001) of the machining center hole (101) reaches the required drawing size;
in the third case, performing a fourth step of carburizing the outer circumferential surfaces of the pair-roller pressing groove (102) and the base body (100); after the fourth step, a fifth step is carried out, wherein the diameter of an inner hole rough machining area (1001) of the machining center hole (101) reaches the required drawing size; a sixth step of quenching the outer circumferential surfaces of the roll groove (102) and the base body (100) after the fifth step;
step b and/or step c are by means of the tooling of claim 1.
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| CN201710810386.6A CN107617469B (en) | 2017-09-11 | 2017-09-11 | Alloy roller press roller sleeve, tool and manufacturing process |
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| CN201710810386.6A CN107617469B (en) | 2017-09-11 | 2017-09-11 | Alloy roller press roller sleeve, tool and manufacturing process |
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| CN109702440A (en) * | 2019-03-07 | 2019-05-03 | 青岛元鼎热工环保有限公司 | Glass kiln transition roller working method |
| CN112757108A (en) * | 2020-12-30 | 2021-05-07 | 中钢集团邢台机械轧辊有限公司 | Device and method for machining groove type of wear-resistant roller sleeve |
| CN118055608A (en) * | 2024-04-15 | 2024-05-17 | 宁德时代新能源科技股份有限公司 | Rolling device and rolling method |
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