MD1122Z

MD1122Z - Installation for vibration smoothing with diamond of outer surfaces of cylindrical parts

Info

Publication number: MD1122Z
Application number: MDS20160100A
Authority: MD
Inventors: Петру СТОЙЧЕВ; Алексей БОТЕЗ; Раду ЧОБАНУ; Олег ЧОБАНУ; Думитру БОТЕЗ
Original assignee: Технический университет Молдовы
Priority date: 2016-09-12
Filing date: 2016-09-12
Publication date: 2017-09-30
Also published as: MD1122Y

Abstract

The invention relates to mechanical engineering, namely to devices for surface treatment by plastic deformation and vibration smoothing with diamond of outer surfaces of cylindrical parts.The installation for vibration smoothing with diamond of outer surfaces of cylindrical parts comprises a body (14) with a tray (15) for feeding and orienting the parts (5), which communicates with lead-in rollers (9), fixed by means of rods (13) to the body (14), inside which is placed a prism (2), oriented by guides (3), inside which, on the edges along its longitudinal axis, are made longitudinal grooves, in which are placed rolling bodies (1), and in the center of the prism (2) are fixed diamond tools (7). The installation also comprises a lead-in cylinder (6), on the outer surface of which are made helical grooves, and which is actuated by a reduction gearmotor (8). At the same time the prism (2) is placed with the possibility of reciprocating motion along the guides (3), by means of an electromagnet (12) with core (4) and of springs (11).

Description

Invenţia se referă la domeniul construcţiilor de maşini, şi anume la instalaţiile de prelucrare superficială prin deformare plastică şi prin vibronetezire cu diamant a suprafeţelor exterioare ale pieselor cilindrice. The invention relates to the field of machine construction, namely to installations for surface processing by plastic deformation and by diamond vibro-smoothing of the outer surfaces of cylindrical parts.

Este cunoscută instalaţia de prelucrare a pieselor cilindrice, care include un cap de netezit, instalat perpendicular pe suprafaţa de lucru, cu o sarcină aplicată pulsator, şi care comunică cu un percutor şi un generator de unde [1]. The installation for processing cylindrical parts is known, which includes a smoothing head, installed perpendicular to the working surface, with a pulsating applied load, and which communicates with a striker and a wave generator [1].

Dezavantajele acestei instalaţii constau în construcţia relativ complicată şi productivitatea scăzută. The disadvantages of this installation are its relatively complicated construction and low productivity.

Cea mai apropiată soluţie este instalaţia, care include un cilindru de rotire şi antrenare a pieselor, un jgheab cu acţiune continuă, mecanisme de deplasare a pieselor şi sculelor de netezit. Instalaţia creează microreliefuri regulate pe suprafeţele pieselor ce se deplasează continuu pe o prismă cu corpuri de rostogolire, instalate în caneluri longitudinale paralele, executate pe suprafeţele ei laterale, iar capul de netezit este dotat cu limitator. Pe suprafaţa exterioară a cilindrului de orientare sunt executate caneluri elicoidale, iar mecanismul de avans este executat în formă de rolă de antrenare [2]. The closest solution is the installation, which includes a cylinder for rotating and driving the parts, a continuous-action chute, mechanisms for moving the parts and smoothing tools. The installation creates regular microreliefs on the surfaces of the parts that move continuously on a prism with rolling bodies, installed in parallel longitudinal grooves, made on its side surfaces, and the smoothing head is equipped with a limiter. Helical grooves are made on the outer surface of the orientation cylinder, and the feed mechanism is made in the form of a drive roller [2].

Dezavantajele acestei instalaţii constau în productivitatea scăzută, adâncimea nesatisfăcătoare a stratului durificat, rezistenţa la uzură şi durata de exploatare a pieselor prelucrate relativ mică. The disadvantages of this installation are low productivity, unsatisfactory depth of the hardened layer, wear resistance and relatively short service life of the machined parts.

Problema pe care o rezolvă prezenta invenţie constă în simplificarea construcţiei instalaţiei şi vibronetezirea automată uniformă a pieselor cilindrice cu diferite profiluri. The problem solved by the present invention consists in simplifying the construction of the installation and the uniform automatic vibro-netting of cylindrical parts with different profiles.

Instalaţia de vibronetezire cu diamant a suprafeţelor exterioare ale pieselor cilindrice, conform invenţiei, înlătură dezavantajele menţionate mai sus prin aceea că include un corp cu un jgheab pentru alimentare şi orientare a pieselor, care comunică cu nişte role de antrenare, fixate prin intermediul unor tije de corp, în interiorul căruia este amplasată o prismă, orientată de nişte ghidaje, în interiorul căreia, pe margini de-a lungul axei ei longitudinale, sunt executate nişte caneluri longitudinale, în care sunt amplasate nişte corpuri de rulare, iar în centrul prismei sunt fixate nişte scule cu diamant, un cilindru de antrenare, pe suprafaţa exterioară a căruia sunt executate nişte caneluri elicoidale şi care este acţionat de un motor-reductor, totodată prisma este amplasată cu posibilitatea deplasării du-te-vino de-a lungul ghidajelor, prin intermediul unui electromagnet cu miez şi al unor arcuri. The diamond vibro-smoothing installation of the outer surfaces of cylindrical parts, according to the invention, eliminates the disadvantages mentioned above by including a body with a chute for feeding and orienting the parts, which communicates with some drive rollers, fixed by means of body rods, inside which a prism is placed, oriented by some guides, inside which, on the edges along its longitudinal axis, some longitudinal grooves are made, in which some rolling bodies are placed, and in the center of the prism are fixed some diamond tools, a drive cylinder, on the outer surface of which some helical grooves are made and which is driven by a gear motor, at the same time the prism is placed with the possibility of moving back and forth along the guides, by means of an electromagnet with a core and some springs.

Avantajele invenţiei constau în vibronetezirea automată uniformă a pieselor cilindrice, creşterea rezistenţei la uzură a suprafeţei exterioare, precum şi a duratei de exploatare a pieselor prelucrate şi optimizarea formei microreliefului suprafeţei piesei prelucrate. The advantages of the invention consist in the uniform automatic vibro-grinding of cylindrical parts, the increase in the wear resistance of the outer surface, as well as the service life of the machined parts and the optimization of the shape of the micro-relief of the surface of the machined part.

Invenţia se explică prin desenele din fig. 1-3, care reprezintă: The invention is explained by the drawings in Fig. 1-3, which represent:

- fig. 1, vederea generală a instalaţiei automate de vibronetezire; - Fig. 1, general view of the automatic vibro-smoothing installation;

- fig. 2, secţiunea A-A din fig. 1; - Fig. 2, section A-A of Fig. 1;

- fig. 3, secţiunea B-B din fig. 2. - fig. 3, section B-B of fig. 2.

Instalaţia de vibronetezire cu diamant a suprafeţelor exterioare ale pieselor cilindrice include un corp 14 cu un jgheab 15 pentru alimentare şi orientare a pieselor 5, care comunică cu nişte role de antrenare 9, fixate prin intermediul unor tije 13 de corpul 14, în interiorul căruia este amplasată o prismă 2, orientată de nişte ghidaje 3, în interiorul căreia, pe margini de-a lungul axei ei longitudinale, sunt executate nişte caneluri longitudinale, în care sunt amplasate nişte corpuri de rulare 1, iar în centrul prismei 2 sunt fixate nişte scule cu diamant 7. Instalaţia de asemenea mai include un cilindru de antrenare 6, pe suprafaţa exterioară a căruia sunt executate nişte caneluri elicoidale şi care este acţionat de un motor-reductor 8. Totodată prisma 2 este amplasată cu posibilitatea deplasării du-te-vino de-a lungul ghidajelor 3, prin intermediul unui electromagnet 12 cu miez 4 şi al unor arcuri 11. The diamond vibro-smoothing installation for the outer surfaces of cylindrical parts includes a body 14 with a chute 15 for feeding and orienting the parts 5, which communicates with some drive rollers 9, fixed by means of rods 13 to the body 14, inside which a prism 2 is placed, oriented by some guides 3, inside which, on the edges along its longitudinal axis, some longitudinal grooves are made, in which some rolling bodies 1 are placed, and in the center of the prism 2 some diamond tools 7 are fixed. The installation also includes a drive cylinder 6, on the outer surface of which some helical grooves are made and which is driven by a gear motor 8. At the same time, the prism 2 is placed with the possibility of moving back and forth along the guides 3, by means of an electromagnet 12 with a core 4 and some springs 11.

Instalaţia de vibronetezire cu diamant a suprafeţelor exterioare ale pieselor cilindrice funcţionează în modul următor. The diamond vibro-smoothing installation for the outer surfaces of cylindrical parts operates in the following way.

Piesele cilindrice 5 prin jgheabul de alimentare şi orientare 15 sunt antrenate în mişcare rectilinie de-a lungul axei prin intermediul rolelor de antrenare 9 fixate prin intermediul tijei 13 de corpul 14 spre cilindrul de antrenare 6 acţionat de motor-reductorul 8 şi prisma 2. Pe marginile prismei de-a lungul axei ei longitudinale sunt executate caneluri longitudinale în care sunt amplasate corpurile de rulare 1, cu ajutorul cărora piesele cilindrice sunt ghidate în timpul prelucrării prin vibronetezire. Sculele cu diamant 7, fixate în centrul prismei 2, contactează cu suprafeţele exterioare ale pieselor cilindrice 5, netezind stratul superficial. Prisma 2 se deplasează du-te-vino pe ghidajele 3 prin intervenţia electromagnetului 12 cu miezul 4 şi a arcurilor 11. La varierea oscilaţiilor electromagnetului 12 prin schimbarea tensiunii curentului electric care alimentează bobina se obţin diferite microreliefuri ale suprafeţelor exterioare ale pieselor cilindrice prelucrate. Cilindrul de antrenare 6, pe suprafaţa exterioară a căruia sunt executate caneluri elicoidale, se roteşte în jurul axei sale prin acţionarea motor-reductorului 8, antrenând în rotaţie şi deplasare longitudinală de-a lungul axei piesele cilindrice 5, care sunt prelucrate uniform de către sculele cu diamant. The cylindrical parts 5 through the feeding and orientation chute 15 are driven in rectilinear motion along the axis by means of drive rollers 9 fixed by means of rod 13 to the body 14 towards the drive cylinder 6 driven by the gear motor 8 and the prism 2. On the edges of the prism along its longitudinal axis, longitudinal grooves are made in which the rolling bodies 1 are located, with the help of which the cylindrical parts are guided during processing by vibro-smoothing. The diamond tools 7, fixed in the center of the prism 2, contact the outer surfaces of the cylindrical parts 5, smoothing the surface layer. The prism 2 moves back and forth on the guides 3 through the intervention of the electromagnet 12 with the core 4 and the springs 11. When varying the oscillations of the electromagnet 12 by changing the voltage of the electric current that feeds the coil, different microreliefs are obtained on the outer surfaces of the processed cylindrical parts. The drive cylinder 6, on the outer surface of which helical grooves are made, rotates around its axis by driving the gear motor 8, driving the cylindrical parts 5 in rotation and longitudinal movement along the axis, which are processed uniformly by the diamond tools.

Instalaţia realizează vibronetezirea automată uniformă a pieselor cilindrice, obţinând prin oscilarea sculelor de netezire o creştere considerabilă: a rezistenţei la uzură a stratului superficial cu o gamă largă de microreliefuri, precum şi a productivităţii şi a duratei de exploatare a pieselor cilindrice prelucrate. The installation performs uniform automatic vibro-smoothing of cylindrical parts, obtaining through the oscillation of the smoothing tools a considerable increase: in the wear resistance of the surface layer with a wide range of micro-reliefs, as well as in the productivity and service life of the processed cylindrical parts.

1. RU 2098259 C1 1997.12.10 1. RU 2098259 C1 1997.12.10

2. SU 876397 A 1981.10.30 2. SU 876397 A 1981.10.30

Claims

Diamond vibro-smoothing installation for the outer surfaces of cylindrical parts, which includes a body (14) with a chute (15) for feeding and orienting the parts (5), which communicates with some drive rollers (9), fixed by means of rods (13) to the body (14), inside which a prism (2) is placed, oriented by some guides (3), inside which, on the edges along its longitudinal axis, some longitudinal grooves are made, in which some rolling bodies (1) are placed, and in the center of the prism (2) some diamond tools (7) are fixed, a drive cylinder (6), on the outer surface of which some helical grooves are made, and which is driven by a gear motor (8), at the same time the prism (2) is placed with the possibility of moving back and forth along the guides (3), by means of an electromagnet (12) with a core (4) and springs (11).