CA1040430A - Apparatus for surface treatment of parts with a vibratory container - Google Patents
Apparatus for surface treatment of parts with a vibratory containerInfo
- Publication number
- CA1040430A CA1040430A CA247,271A CA247271A CA1040430A CA 1040430 A CA1040430 A CA 1040430A CA 247271 A CA247271 A CA 247271A CA 1040430 A CA1040430 A CA 1040430A
- Authority
- CA
- Canada
- Prior art keywords
- vibrations
- supplementary
- parts
- annular vessel
- surface treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
- B24B31/073—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers involving a bowl being ring- or spiral-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
APPARATUS FOR SURFACE TREATMENT
OF PARTS WITH A VIBRATORY CONTAINER
ABSTRACT OF THE DISCLOSURE
A vibratory apparatus for the surface treatment of parts with media in which the apparatus includes a generator for inducing supplementary vibrations superimposed upon the basic vibrations, in which the generator is in the form of a free oscillatory means of a bowl housed within a race for circular movement about an axis parallel with the axis of the means inducing the basic vibrations.
OF PARTS WITH A VIBRATORY CONTAINER
ABSTRACT OF THE DISCLOSURE
A vibratory apparatus for the surface treatment of parts with media in which the apparatus includes a generator for inducing supplementary vibrations superimposed upon the basic vibrations, in which the generator is in the form of a free oscillatory means of a bowl housed within a race for circular movement about an axis parallel with the axis of the means inducing the basic vibrations.
Description
~04~)430 This invention relates to an apparatus for surface treatment of parts with a resiliently supported vibratory container subjected to basic oscillations and to supplementary oscillations superimposed upon the basic oscillations to cause movement of parts and media.
It is known to design a vibratory container as an annular vessel.
In such instance, vertically spaced eccentric weights, mounted for rotation about a vertical axis, are preferably used as generators for the vibratory movement. By changing the rate of revolution and adjustment of the imbalance of the weights relative to each other, it is possible to vary both amplitude and frequency of vibrational movement, as well as the rate of directional movement. However, there is a limit to the amount of variation, so that only part of the desired surface treatment is accomplished.
It is an object of this invention to provide an apparatus of the type described designed to permit wide adjustment of operating conditions, with corresponding improvement in surface treatment.
According to the present invention there is provided an apparatus for the surface treatment of parts with media comprising a horizontally dis-~ posed annular vessel in which said parts and media are received, means resili-; ently unting said annular vessel for multi-directional movement, eccentric means connected to the annular vessel for imparting basic vibrations to said annular vessel comprising one or more eccentrics mounted for rotational move-ment about the vertical axis of the annular vessel, and a supplementary vibra-tion generator means mounted on the annular vessel separate and apart from but ; in axial alignment with the eccentric means for inducing additional vibrations independently of the basic vibrations.
Based on the design of this invention, apparatus of the type descri-bed has greater functional value. The basic design of the apparatus, as known in the prior art, need not be changed. Instead, there is provided a supple-mentary vibratory generator at an appropriate location on the apparatus.
During surface treatment, the basic vibrations are modified by the supple-mental vibrations normally of higher frequency acting on the container and correspondingly on the material contained therein.
B -1- qF
-~()4Q430 The desired conditions, heretofore not ava;lable for surface treatment with the basic vibrations, can be achieved by the cumulative e~fect of the supplemental vibrations~ Moreover, an improved surface treatment of parts is achieved with re-d~ctio~ in treatment time.
The supplemental vibration can itself be varied to enable further adjustments to be obtained. Moreover, the treat-ment effect can be influenced by the adjustment of the plane of vibration of the additional oscillations of the supplemental generator. The supplemental vibrations can be aligned for move-ment in a plane horizontal or vertical to the vibratory con-tainer or even at an angle thereto.
The generator for the supplementary vibrations can be variable in design. For example, it can be designed to be oper-ated electro-mechanically, mechanically, pneumatically, or hydraulically. It can also be designed so that only the supple-mental oscillations are transmitted to the container for the surface treatment of parts.
An advantageous design is in the form of a free swinging means. Because of the action of the basic vibrations, there is no precisely defined frequency. This, however, does ` not a~versely affect the surface treatment but instead makes available the advantage of simplification of the supplementary oscillations. For example, an applicable free swinging means . .
comprises a ball vibrator which is driven by compressed air.
It is simple in design and not prone to disturbances. The fre-quer.cy of the ball vibrator is determined essentially b~ the -air pressure.
As a result of directing the supplementary vibrations opposite to the rotary component of the basic vibrations, the ~ 11)40430 surface treatment effect is increased. Moreover, the material çontained in the vessel is stabiiized. ~or example, in a vibratory container wherein the content material flows in a spiral path, surface treabment of the parts can be effected in a single path. For this purpose, the oscillations originat-ing from the supplemental generator are adapted to account for movement of the parts in a direction opposite to the direction of movement induced by the basic vibrations.
Coaxial superpositioning of both vibrators offers advantages from a technical standpoint of manufacture and use.
The generator for the supplemental vibrations is preferably located on top of the unit thereby to facilitate access there-to. If desired, the generator for the additional vibrations can be simply inactivated.
An em~odiment of the invention is hereinafter de-scribed with reference to Figuxes 1 to 3, in which -Fig. 1 is a sectional elevational view through an apparatus embodying the features of this invention, with the supplemental vibra~or shown in elevational view at the top;
Fig. 2 is a top plan view of the apparatus shown in Fig. l; ana Fig. 3 is a sectional elevational view through the generator in the form of a free oscillator for the supplemental oscillations.
The apparatus is provided with a base 2 located on a supporting panel 1. Compression springs 4 are seated about tbe frontal edge 3 of the base 2 and on which the vibratory container 5 is supported for vibratory movement. The vibra-tory container is designed as an annular bowl with approxim-ately an annular cross-section. The outer wall 6 of the _3_ 1~4~430 container has an inwardly drawn edge 6'. The inner wall of the container is joined at its upper edge to a central flat horizontally disposed plate 8.
The vibrator 9, for inducing the basic vibrations, is located centrally within the free area of base 2 and of the vibratory container 5. Said vibrator 9 comprises an elec-trical motor 9' for rotational movement of an axial shaft 9'' on which there are mounted the vertically spaced imbalance or eccentric weights 10 and 11 which are reciprocally adjustable.
The generator 12, for the supp~ementary os~illations, is arranged coaxially to the generator 9 of the basic vibra-tions. For this purpose, a mounting bracket 13 is fixed on the flat plate 8 which supports the generator 12 for the sup-plementary oscillations designed as free swiinging means. The free swinging means 12 comprises a ball vibrator having a bear-' ing housing 14 from which supporting legs 15 extend for connec-! tion to the mounting bracket 13 by means of screws 16.
The bearing houslng 14 is provided with two spaced ~' bearing rings 17 mounted coaxially in relation to each other and chamfered on the inside. They extend against a~ inner central collar 18 of the bearing housing 14. The bearing housing is enclosed by two covers 19 and 20 secured to each other in the assembled relation, under tension, by means of screw 21. The chamfering 22 of the bearing rings 17 is designed to correspond to the diameter of the ball 23.
The conduits 24 and 25, arranged parallel to each other, extend from opposite sides of the bearing housing.
`~ The slip-on nipple 26 for the slip-on bushing 27 of a com-pressed air duct 28, shown in dot and dash lines in Fig. 1, is provided at the end of the conduit 25.
The perorated air discharge pipe 29 extends from the other conduit 24. The slip-on nipple 26 and the air dis-charge pipe 29 are connected via openings 30 to the interior of the bearing housing. In operation, ball 23 i9 caused to rotate in the direction of the arrow X by the supply of com-pressed air. The direction of rotation is thus made opposite to that of the vibrator 9.
In order to disconnect the generator 12 of the sup-plementary vibrations, one merely has to remove the slip-on bushing 27 from the slip-on nipple.
It will be apparent that the bearing housing can be rocked about its supporting bracket to fix the housing at various angles, or that i~ can be inverted for rotation of the ball in the opposite direction and that the speed of ro-tation of the bowl can be adjusted by variation in the com-pressed air from the standpoint of rate of flow and pressure.
In operation, the bowl is loaded with media and parts to be subjected to surface treatment whereby, when the basic and supplementary vibratory means are activated, the parts and media are subjected to vibratory movement as they are caused to move in a spiral or orbitol path about the bowl at a rate and in vibratory frequency depending upon the ad-justment of the basic vibrations as modified by the super-imposed supplementary vibrations.
Surface treatment of the parts with the media is effective to~improve the surface finish of the parts, remove burrs or flashings from the parts, or to provide other sur-face treatment before the parts are separated from the media.
It is known to design a vibratory container as an annular vessel.
In such instance, vertically spaced eccentric weights, mounted for rotation about a vertical axis, are preferably used as generators for the vibratory movement. By changing the rate of revolution and adjustment of the imbalance of the weights relative to each other, it is possible to vary both amplitude and frequency of vibrational movement, as well as the rate of directional movement. However, there is a limit to the amount of variation, so that only part of the desired surface treatment is accomplished.
It is an object of this invention to provide an apparatus of the type described designed to permit wide adjustment of operating conditions, with corresponding improvement in surface treatment.
According to the present invention there is provided an apparatus for the surface treatment of parts with media comprising a horizontally dis-~ posed annular vessel in which said parts and media are received, means resili-; ently unting said annular vessel for multi-directional movement, eccentric means connected to the annular vessel for imparting basic vibrations to said annular vessel comprising one or more eccentrics mounted for rotational move-ment about the vertical axis of the annular vessel, and a supplementary vibra-tion generator means mounted on the annular vessel separate and apart from but ; in axial alignment with the eccentric means for inducing additional vibrations independently of the basic vibrations.
Based on the design of this invention, apparatus of the type descri-bed has greater functional value. The basic design of the apparatus, as known in the prior art, need not be changed. Instead, there is provided a supple-mentary vibratory generator at an appropriate location on the apparatus.
During surface treatment, the basic vibrations are modified by the supple-mental vibrations normally of higher frequency acting on the container and correspondingly on the material contained therein.
B -1- qF
-~()4Q430 The desired conditions, heretofore not ava;lable for surface treatment with the basic vibrations, can be achieved by the cumulative e~fect of the supplemental vibrations~ Moreover, an improved surface treatment of parts is achieved with re-d~ctio~ in treatment time.
The supplemental vibration can itself be varied to enable further adjustments to be obtained. Moreover, the treat-ment effect can be influenced by the adjustment of the plane of vibration of the additional oscillations of the supplemental generator. The supplemental vibrations can be aligned for move-ment in a plane horizontal or vertical to the vibratory con-tainer or even at an angle thereto.
The generator for the supplementary vibrations can be variable in design. For example, it can be designed to be oper-ated electro-mechanically, mechanically, pneumatically, or hydraulically. It can also be designed so that only the supple-mental oscillations are transmitted to the container for the surface treatment of parts.
An advantageous design is in the form of a free swinging means. Because of the action of the basic vibrations, there is no precisely defined frequency. This, however, does ` not a~versely affect the surface treatment but instead makes available the advantage of simplification of the supplementary oscillations. For example, an applicable free swinging means . .
comprises a ball vibrator which is driven by compressed air.
It is simple in design and not prone to disturbances. The fre-quer.cy of the ball vibrator is determined essentially b~ the -air pressure.
As a result of directing the supplementary vibrations opposite to the rotary component of the basic vibrations, the ~ 11)40430 surface treatment effect is increased. Moreover, the material çontained in the vessel is stabiiized. ~or example, in a vibratory container wherein the content material flows in a spiral path, surface treabment of the parts can be effected in a single path. For this purpose, the oscillations originat-ing from the supplemental generator are adapted to account for movement of the parts in a direction opposite to the direction of movement induced by the basic vibrations.
Coaxial superpositioning of both vibrators offers advantages from a technical standpoint of manufacture and use.
The generator for the supplemental vibrations is preferably located on top of the unit thereby to facilitate access there-to. If desired, the generator for the additional vibrations can be simply inactivated.
An em~odiment of the invention is hereinafter de-scribed with reference to Figuxes 1 to 3, in which -Fig. 1 is a sectional elevational view through an apparatus embodying the features of this invention, with the supplemental vibra~or shown in elevational view at the top;
Fig. 2 is a top plan view of the apparatus shown in Fig. l; ana Fig. 3 is a sectional elevational view through the generator in the form of a free oscillator for the supplemental oscillations.
The apparatus is provided with a base 2 located on a supporting panel 1. Compression springs 4 are seated about tbe frontal edge 3 of the base 2 and on which the vibratory container 5 is supported for vibratory movement. The vibra-tory container is designed as an annular bowl with approxim-ately an annular cross-section. The outer wall 6 of the _3_ 1~4~430 container has an inwardly drawn edge 6'. The inner wall of the container is joined at its upper edge to a central flat horizontally disposed plate 8.
The vibrator 9, for inducing the basic vibrations, is located centrally within the free area of base 2 and of the vibratory container 5. Said vibrator 9 comprises an elec-trical motor 9' for rotational movement of an axial shaft 9'' on which there are mounted the vertically spaced imbalance or eccentric weights 10 and 11 which are reciprocally adjustable.
The generator 12, for the supp~ementary os~illations, is arranged coaxially to the generator 9 of the basic vibra-tions. For this purpose, a mounting bracket 13 is fixed on the flat plate 8 which supports the generator 12 for the sup-plementary oscillations designed as free swiinging means. The free swinging means 12 comprises a ball vibrator having a bear-' ing housing 14 from which supporting legs 15 extend for connec-! tion to the mounting bracket 13 by means of screws 16.
The bearing houslng 14 is provided with two spaced ~' bearing rings 17 mounted coaxially in relation to each other and chamfered on the inside. They extend against a~ inner central collar 18 of the bearing housing 14. The bearing housing is enclosed by two covers 19 and 20 secured to each other in the assembled relation, under tension, by means of screw 21. The chamfering 22 of the bearing rings 17 is designed to correspond to the diameter of the ball 23.
The conduits 24 and 25, arranged parallel to each other, extend from opposite sides of the bearing housing.
`~ The slip-on nipple 26 for the slip-on bushing 27 of a com-pressed air duct 28, shown in dot and dash lines in Fig. 1, is provided at the end of the conduit 25.
The perorated air discharge pipe 29 extends from the other conduit 24. The slip-on nipple 26 and the air dis-charge pipe 29 are connected via openings 30 to the interior of the bearing housing. In operation, ball 23 i9 caused to rotate in the direction of the arrow X by the supply of com-pressed air. The direction of rotation is thus made opposite to that of the vibrator 9.
In order to disconnect the generator 12 of the sup-plementary vibrations, one merely has to remove the slip-on bushing 27 from the slip-on nipple.
It will be apparent that the bearing housing can be rocked about its supporting bracket to fix the housing at various angles, or that i~ can be inverted for rotation of the ball in the opposite direction and that the speed of ro-tation of the bowl can be adjusted by variation in the com-pressed air from the standpoint of rate of flow and pressure.
In operation, the bowl is loaded with media and parts to be subjected to surface treatment whereby, when the basic and supplementary vibratory means are activated, the parts and media are subjected to vibratory movement as they are caused to move in a spiral or orbitol path about the bowl at a rate and in vibratory frequency depending upon the ad-justment of the basic vibrations as modified by the super-imposed supplementary vibrations.
Surface treatment of the parts with the media is effective to~improve the surface finish of the parts, remove burrs or flashings from the parts, or to provide other sur-face treatment before the parts are separated from the media.
Claims (6)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An apparatus for the surface treatment of parts with media com-prising a horizontally disposed annular vessel in which said parts and media are received, means resiliently mounting said annular vessel for multi-directional movement, eccentric means connected to the annular vessel for imparting basic vibrations to said annular vessel comprising one or more eccentrics mounted for rotational movement about the vertical axis of the annular vessel, and a supplementary vibration generator means mounted on the annular vessel separate and apart from but in axial alignment with the eccentric means for inducing additional vibrations independently of the basic vibrations.
2. An apparatus as claimed in claim 1 including means for angular adjustment of said supplementary vibration generator means for varying the plane of vibration between the horizontal to the vertical of the container.
3. An apparatus as claimed in claim 1 in which the additional vibra-tions are higher in frequency.
4. An apparatus as claimed in claim 1 in which the supplementary generator means is a freely oscillating means.
5. An apparatus as claimed in claim 4 in which the freely oscillating means of the supplementary generator means comprises a circular race, a ball mounted within said race for free circulation about the race, and means for driving the ball for circulation about the race.
6. An apparatus as claimed in claim 1 in which the direction of rota-tion of the additional vibrations derived from the supplementary generator means is opposite to that of the basic vibrations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752511457 DE2511457A1 (en) | 1975-03-15 | 1975-03-15 | DEVICE FOR MACHINING WORK PIECES WITH A VIBRATION CONTAINER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1040430A true CA1040430A (en) | 1978-10-17 |
Family
ID=5941517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA247,271A Expired CA1040430A (en) | 1975-03-15 | 1976-03-08 | Apparatus for surface treatment of parts with a vibratory container |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE838864A (en) |
| CA (1) | CA1040430A (en) |
| DE (1) | DE2511457A1 (en) |
| FR (1) | FR2304444A1 (en) |
| NL (1) | NL7602020A (en) |
| SE (1) | SE7600356L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2360380A1 (en) * | 1976-08-03 | 1978-03-03 | Roto Finish Co | Vibratory component surface finishing machine - has gyratory assembly with motor driven eccentric weights on vertical shaft |
-
1975
- 1975-03-15 DE DE19752511457 patent/DE2511457A1/en active Pending
-
1976
- 1976-01-15 SE SE7600356A patent/SE7600356L/en unknown
- 1976-02-19 FR FR7604634A patent/FR2304444A1/en not_active Withdrawn
- 1976-02-24 BE BE164570A patent/BE838864A/en unknown
- 1976-02-27 NL NL7602020A patent/NL7602020A/en unknown
- 1976-03-08 CA CA247,271A patent/CA1040430A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE7600356L (en) | 1976-09-16 |
| BE838864A (en) | 1976-06-16 |
| NL7602020A (en) | 1976-09-17 |
| DE2511457A1 (en) | 1976-09-23 |
| FR2304444A1 (en) | 1976-10-15 |
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