RU2506150C2 - Vibratory device for finishing-and-skinning - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used for machining the parts in containers that make low-frequency oscillations. Vibratory unit comprises working chamber elastically fitted at the base. Working chamber has polygon helical surface along its inner and outer perimetre and features spiral shape composed by sections made of two subsections made from bands bent in one direction along the crease arranged at the angle to band edges and coiled to make different-size equilateral, isosceles and scalene triangles with their sizes differing by linear value multiple of integer Δ. Invention covers also the interconnection of said triangles for making preset-shape working chamber.

EFFECT: expanded performances, higher efficiency.

15 dwg

Description

The invention relates to the processing of parts in containers that perform low-frequency vibrations, and may find application in various industries for grinding, polishing and hardening of the surface layer of parts.

A device for vibration processing (AS No. 1042965, class B24B 31/06, 1983) is provided, comprising a toroidal chamber with a vibrator and a cover resiliently mounted on the base, made in the form of an annular disk and installed with a clearance of the working chamber cavity.

A disadvantage of the known device is the lack of processing intensity and limited technological capabilities due to insufficient mixing intensity.

Closest to the proposed invention is a vibration unit with a volumetric movement of the working chamber (RF patent No. 2288830, class B24B 31/073, 2006), containing a toroidal working chamber, which is elastically mounted on the base with a vibrator, made of sections mounted from strips bent to one side ) along straight lines placed at an angle to the edges of the strips, with the alternating formation along the strip length of equal-sized equilateral and isosceles triangles, while on both sides of the largest equilateral triangle Two identical isosceles triangles are located at their bases, on the sides of which are two identical equilateral triangles with two identical isosceles triangles located to them with their bases, on one of which are equilateral triangles, and the sides of smaller equilateral triangles differ from the sides of large equilateral triangles by one the same linear quantity, and the sections are connected to each other by the free sides of the mentioned triangles with the image Hovhan on the outer and inner surfaces of the toroidal working chamber of polygonal lines screw and helical surfaces.

A disadvantage of the known device is the limited technological capabilities, the complexity of organizing the processing of parts in a continuous stream.

The technical solution is to expand technological capabilities, simplify manufacturing.

The technical solution is achieved by the fact that in a vibration installation for finishing and cleaning parts that contain a working chamber elastically mounted on the base with a vibrator, the working chamber is made with a multifaceted screw surface along its inner and outer perimeter and has the form of a spiral consisting of sections mounted from two subsections made of strips bent to one side along straight fold lines placed at an angle to the edges of the strips and rolled into a ring with alternating formation along the length of the strip of different sizes measures of equilateral, isosceles, and miscellaneous triangles, and the sides of the triangles differ from each other by a linear multiple of an integer Δ, while on the two sides of the larger of the equilateral triangles, two identical equilateral triangles are located with their large sides, the average sizes of which are smaller than the sides of the large of an equilateral triangle by a linear value of 2Δ and to the middle-sized side of one of which, on one side of the strip, the smaller of the equilateral triangles, the side of which is smaller than the side of the large equilateral triangle by a linear value of 2Δ, and on the second side of the smaller equilateral triangle, an isosceles triangle is located at its base, the sides of which are smaller than its base by the linear value of Δ and, accordingly, less than the sides of the large equilateral triangle by the linear value of 3Δ , and on the lateral side of which an isosceles triangle is located, the base of which is smaller than its lateral side by Δ and, correspondingly, Clearly, 4Δ is smaller than the side of the large equilateral triangle, while on the opposite side of the strip, the isosceles triangle adjoins its middle side with the lateral side of the isosceles triangle, the base of which is smaller than its lateral side by Δ and, accordingly, is smaller than the side of the large equilateral triangle by 3Δ, and to the base of which an isosceles triangle adjoins with its lateral side, the base of which is smaller than its lateral side by Δ and, with accordingly, 4Δ is less than the side of the large equilateral triangle, while the ends of the strips with a linear value smaller by 4Δ than the sides of the large equilateral triangle are connected to form subsections, which on one side have a square hole, the side of which is smaller than the side of the large equilateral triangle of the strip by 3Δ, and on the other hand, an opening in the form of an isosceles trapezoid, the large base of which is equal to the side of the large equilateral triangle, the small base is smaller than of the flat base by 3Δ, and its sides are less than the large base by 2Δ, and the sub-sections are connected to each other by sides with trapezoidal openings to form sections with inlet and outlet openings in the form of squares whose sides are equal to each other, and these sides with holes are located at an angle a, the value of which determines the shape of the formed working chamber of the spiral, while the sections are connected into the working chamber alternately with 90 ° rotation relative to each other clockwise and in a rotation atnom direction.

According to the patent literature, no technical solution was found that is similar to the claimed one, which allows one to judge the inventive step of the proposed vibration unit for finishing and cleaning parts.

The novelty is due to the fact that the working chamber is made in a spiral shape along its outer and inner perimeter of multi-helical surfaces and multi-helical lines, which provides not only the intensification of the interaction of working particles and workpieces, but also the expansion of technological capabilities.

The novelty of the proposal also lies in the fact that the entire cross-section along the entire perimeter of the working chamber changes not only in shape, but also in area, which provides alternate compression and expansion of the loading mass - particles of the working media and workpieces in each cross section of the working chamber, which means an increase productivity, processing efficiency and the expansion of technological capabilities.

The novelty of the invention lies in the fact that the triangles of the strips from which the subsections of the working chamber are mounted are not only inclined to each other, but also to the axis of symmetry of the working chamber; therefore, the degree of compression of the components of the loading mass — working medium particles and workpieces — increases, the finishing process sweeping processing is accelerated, technological capabilities are expanded.

The novelty also lies in the fact that the working chamber is made of sections whose walls are not only inclined to each other, but also to the direction of the rotational movement of the particles of the working media and the workpieces moving under the influence of vibration in planes perpendicular to the bore of the working chamber, which complicates the trajectory of their movement, increases the intensity of their interaction and expands technological capabilities.

The novelty lies in the fact that the manufacture of a spiral-shaped working chamber with multifaceted elements of various shapes and perimeter sizes located along helical surfaces and spiral broken helical lines provides an intensification of the mixing process of working particles and workpieces, increases the energy intensity and frequency of their interaction, ensuring the continuity of the workpiece flow as they move from loading to unloading.

The invention is illustrated by drawings, where: in Fig.1 shows a vibration unit for finishing and cleaning processing of parts, General view; figure 2 - working chamber, top view; figure 3 is a section aa in figure 2; figure 4 is one of the sections from which the working chamber is mounted, top view; figure 5 is one of the sections from which the working chamber is mounted, view along arrow H in figure 4; figure 6 is one of the subsections of the working chamber section axonometric projection; Fig.7 is a second subsection, sections of the working chamber, axonometric projection; on Fig - strip with marked straight lines; figure 9 - assembly diagram of the section from the subsections; figure 10 - section bB in figure 2; figure 11 is a section bb in figure 2;, figure 12 is a section gg in figure 2; in Fig.13 is a section DD in Fig.2; Fig.14 is a cross-section EE in Fig.2. Fig. 15 is a flow chart of the continuous processing of parts in a vibration unit for finishing and cleaning parts, a visual image;

The vibrating installation for finishing and cleaning parts (Fig. 1) consists of a bed 1, on which, using springs 2, the working chamber 4 is elastically fixed and equipped with a vibrator 3. Loading and unloading devices are not shown in Fig. 1.

The working chamber 4 (figure 2, figure 3) is made of a spiral shape with a polyhedral helical surface along its inner and outer perimeter and made of sections 5 (one of the sections in figure 2 is highlighted by solid thickened lines), interconnected by known methods, e.g. welding, sticky, etc. Each of the sections 5 is made in the form of a circular sector (Fig. 4, Fig. 5, Fig. 6, Fig. 7) from subsections 6 and 7. Subsections 6 and subsection 7 are made of strips M (Fig. 8) bent to one side along straight lines A, B, C, D, D, E, F, placed at an angle to the lateral edges of strip M, with the formation of different-sized equilateral triangles 8 and 9, while the sides of triangle 8 are less than the sides of triangle 9 by 2Δ, isosceles triangles 10, 11, 12, 13 and two identical different-sided triangles 14 and 15. All sides of these triangles differ from each other at the same linear quantity that is a multiple of the integer Δ. Moreover, on the two sides of the largest equilateral triangle 9, two identical different-sided triangles 14 and 15 are placed with their largest sides (side Г of triangle 14 and side Δ of triangle 15). the triangles 14 and 15 are connected to the triangle 9 shown in Fig. 8 by double lines. The medium-sized sides of the miscellaneous triangles 14 and 15 (the side in triangle 14 and the G. side of triangle 15) are smaller than the sides of the large equilateral triangle 9 by 2Δ. The smallest sides of the versatile triangles 14 and 15 are smaller than their average sides B and E by an amount (Δ) and equal to an amount (L). These sides (L) are shown in FIG. An equilateral triangle 8 is attached to the middle side B of an equilateral triangle 14, all sides of which are equal to the middle side B of triangle 14. To side B of triangle 8, an isosceles triangle 11 is attached with its base, the sides of which are smaller than its base by Δ and correspondingly smaller than the side of the largest triangle 9 by 3Δ. An isosceles triangle 10, the base of which is smaller than its lateral side by Δ and correspondingly smaller than the sides of the largest equilateral triangle 9 by 4Δ, is attached to the side of triangle 11 by its lateral side Δ. On the opposite side of the strip M to the middle side E of the triangle 15, an isosceles triangle 12 is attached with its lateral side, the base of which is smaller than its lateral side by Δ and, accordingly, less by the sides of triangle 9 by 3Δ. An isosceles triangle 13, the base of which is smaller than its lateral side by Δ and correspondingly smaller than the sides of the largest equilateral triangle 9 by 4Δ, is attached to side Ж - the base of triangle 12 by its lateral side.

After bending the strip M along the lines A, B, C, D, D, E, Zh into a ring in one direction, the ends of the strip M along the lines K (shown in Figures 6 and 7 by a triple line) are connected, for example, by welding to form subsections 6 and 7 (Fig.6 and Fig.7) in which on one side a hole is formed in the form of a square with a side equal to L whose length is less than the sides of the largest equilateral triangle 9 of the strip M by 3Δ, and on the other hand, a hole is formed in the form of an isosceles trapezoid, whose large base is equal to the side of the largest equilateral triangle 9, the small base is smaller than the large base of the trapezoid by 3Δ, and the sides are smaller than the large base by 2Δ.

Subsections 6 and 7 are connected by holes in the form of facets (Fig. 9) with the formation of section 5, for example by welding. Thus, section 5 (Fig. 4, Fig. 5) is provided with an inlet square hole P and an outlet square hole C, the sides of the square inlet and outlet openings P and C of section 5 being equal to each other. The square holes P and C of section 5 are located to each other at an angle a, the value of which provides a spiral shape of the working chamber.

When the sections 5 are mounted in the working chamber, they are connected with square holes, while in turn they are rotated 90 ° each subsequent section relative to the previous one clockwise, and then the next section is also connected with rotation in the opposite direction by 90 °.

Mutually directed broken helical lines are formed on the outer and inner surfaces of the spiral chamber, for example, as shown in FIG. 2, one of eight broken helical lines is shown by the thickened line: 16-17-18-19-20-21-22-23-23-24-25- 26-27-28-29-30-31-32-33-34-35-36-37-38-39-40-41-42-43, etc. In Fig.2, the invisible sections of the broken helix are shown by a double dashed line, and their vertices are taken in parentheses.

As a result, helical surfaces with different cross-sectional shapes and sizes are formed on the inner and outer surfaces of the spiral shape of the working chamber, and the working chamber of the spiral shape itself has a cross-section that varies along the entire length of the spiral chamber both in area, size and shape. (Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15.

Thus, the working chamber 4 (Fig. 1, Fig. 2, Fig. 3) is made around the perimeter in the form of a multi-helical surface with helical lines around the perimeter of the working chamber 4 and with a variable bore, providing compression of the working medium and the workpiece.

The working chamber 4 (figure 2, figure 3) of a spiral shape with its multi-faceted helical surface along its inner and outer perimeter with the formation of multi-helical surfaces and unidirectional multi-helical lines along its outer and inner surfaces can be made in another way.

Vibroinstallation for finishing and cleaning parts is as follows.

The perturbing force of the vibrator 3 is transmitted through the walls of the working chamber 4 to the particles of the working media and the workpiece located inside the working chamber 4. The particles of the working medium and the workpiece make a complex movement, during which the process of finishing and cleaning is performed. Particles of working fluids and workpieces intensively interact with each other and under the influence of vibration rotate in planes perpendicular to the bore of the working chamber 4. Since the dimensions of the cross section along the length of the working chamber 4 vary, the disturbance of the movement of the working particles is aggravated environments and workpieces, i.e. there is an increase in the intensity of finishing and cleaning. The presence of helical surfaces and helical lines around the perimeter of the working chamber 4 contributes not only to the complication of the trajectories of the particles of the working media and workpieces, but also to their movement along the bore of the working chamber 4 from loading (Fig. 15) to unloading. When 4 particles of working media and workpieces move along the passage through the working chamber, due to the change in the cross-section in shape and size, compression and vacuum zones are alternately formed in each cross-section of the working chamber 4 throughout the entire volume, which also intensifies the finishing and cleaning process and expands technological capabilities.

Technical and economic advantages arise due to the implementation of the working chamber of the vibroinstallation unit for finishing and cleaning parts, with multiple changes in the bore in shape and size along its entire length and with the formation of multi-helical surfaces and unidirectional multi-helix lines along its outer and inner perimeter, which and provide a change in the direction of motion of the flow of particles of the working fluid and the workpiece and the expansion of technological capabilities.

Claims (1)

Vibration unit for finishing and cleaning parts, containing an elastic chamber mounted on the base of the working chamber with a vibrator, characterized in that the working chamber is made with a polyhedral helical surface along its inner and outer perimeters and has the form of a spiral consisting of sections mounted from two subsections made of from strips bent to one side along straight fold lines, placed at an angle to the edges of the strips, and rolled into a ring with alternating formation along the length of the strip of different sizes equilateral x, isosceles and miscellaneous triangles, and the sides of the triangles differ by a linear value that is a multiple of an integer Δ, while on the two sides of the larger of the equilateral triangles, two identical equilateral triangles are located with their large sides, the average sizes of which are smaller than the sides of the large equilateral of a triangle by a linear value of 2Δ and to the middle-sized side of one of which, on one side of the strip, the smaller of equilateral triangles adjoins, which is less than the side of a large equilateral triangle by a linear value of 2Δ, and on the second side of a smaller equilateral triangle, an isosceles triangle is located at its base, the sides of which are less than its base by a linear value of Δ and, accordingly, less than the side of a large equilateral triangle by a linear value of 3Δ, and on the lateral side of which an isosceles triangle is located, the base of which is smaller than its lateral side by Δ and, accordingly, less than the side a large equilateral triangle by 4Δ, while on the opposite side of the strip, an isosceles triangle adjoins its lateral side to the middle-sized side of the second different-sided triangle, the base of which is less than its lateral side by Δ and, accordingly, less than the side of a large equilateral triangle by 3Δ, and to the base of which an isosceles triangle adjoins with its lateral side, the base of which is smaller than its lateral side by Δ and, accordingly, 4Δ more than the sides of the large equilateral triangle, while the ends of the strips with a linear value smaller by 4Δ than the sides of the large equilateral triangle are connected with the formation of subsections, which on one side have a square hole, the side of which is less than the side of the large equilateral triangle of the strip by 3Δ, and on the other hand, a hole in the form of an isosceles trapezoid, the large base of which is equal to the side of the large equilateral triangle, the small base is smaller than the large base and the value is 3Δ, and its sides are less than the large base by the amount of 2Δ, and the sub-sections are connected to each other by sides with trapezoidal openings to form sections with inlet and outlet openings in the form of squares whose sides are equal to each other and these sides with openings are located at an angle α, the value of which determines the shape of the spiral formed by the working chamber, while the sections are connected into the working chamber alternately with 90 ° rotation relative to each other clockwise and in the opposite direction .

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