U.S. patent application number 13/716204 was filed with the patent office on 2013-09-12 for system and method of electrolytic deburring for metal pieces.
This patent application is currently assigned to Hon Hai Precision Industry Co., Ltd.. The applicant listed for this patent is HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LT. Invention is credited to HSING-JEN HSU, TIAN-FENG HUANG, HAO-CHUNG LEE, WEN-LI WANG, YAO-GANG ZHANG.
Application Number | 20130233724 13/716204 |
Document ID | / |
Family ID | 49113089 |
Filed Date | 2013-09-12 |
United States Patent
Application |
20130233724 |
Kind Code |
A1 |
HSU; HSING-JEN ; et
al. |
September 12, 2013 |
SYSTEM AND METHOD OF ELECTROLYTIC DEBURRING FOR METAL PIECES
Abstract
A system for electrolytic deburring of metal workpieces includes
a power supply case, an electrolyte chamber, an anode, a cathode
and a nozzle. The power supply case includes an anode connector and
a cathode connector. Electrolyte is received in the electrolyte
chamber. The anode holds at least one of workpiece and is immersed
in the electrolyte, and electrically connected to the anode
connector. The cathode is positioned in the electrolyte chamber and
electrically connected to the cathode connector , and at least a
part of the cathode is immersed in the electrolyte. The nozzle is
positioned in the electrolyte chamber and sprays the electrolyte
under pressure to form a vortex and turbulence for deburring metal.
The disclosure also supplies a method of electrolytic deburring of
metal.
Inventors: |
HSU; HSING-JEN; (New Taipei,
TW) ; LEE; HAO-CHUNG; (New Taipei, TW) ;
ZHANG; YAO-GANG; (Shenzhen, CN) ; WANG; WEN-LI;
(Shenzhen, CN) ; HUANG; TIAN-FENG; (Shenzhen,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LT
HON HAI PRECISION INDUSTRY CO., LTD. |
Shenzhen
New Taipei |
|
CN
TW |
|
|
Assignee: |
Hon Hai Precision Industry Co.,
Ltd.
New Taipei
TW
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd
Shenzhen
CN
|
Family ID: |
49113089 |
Appl. No.: |
13/716204 |
Filed: |
December 17, 2012 |
Current U.S.
Class: |
205/670 ;
204/240; 204/273 |
Current CPC
Class: |
C25F 5/00 20130101; C25F
3/16 20130101; C25F 7/00 20130101 |
Class at
Publication: |
205/670 ;
204/273; 204/240 |
International
Class: |
C25F 5/00 20060101
C25F005/00; C25F 7/00 20060101 C25F007/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 8, 2012 |
CN |
201210059576.6 |
Claims
1. A system of electrolytic deburring for metal workpieces, the
system comprising: a power supply case comprising an anode
connector and a cathode connector; an electrolyte chamber for
receiving an electrolyte; an anode positioned in the electrolyte
chamber for supporting at least one of the metal workpiece,
immersed in the electrolyte, and electrically connected to the
anode connector; a cathode positioned in the electrolyte chamber
and electrically connected to the cathode connector , and at least
a part of the cathode being immersed in the electrolyte; and a
nozzle positioned in the electrolyte chamber, for spraying the
electrolyte to create a turbulence and vortex in the electrolyte
chamber for deburring.
2. The system of claim 1, wherein the system further comprises a
pump and a plurality of connecting hoses, the pump is connected and
communicated between the nozzle and the electrolyte chamber via the
connecting hoses, for pressuring the electrolyte drawn from the
electrolyte chamber.
3. The system of claim 2, wherein a pressure range applied by the
pump is from about 2 to about 6 MPa.
4. The system of the claim 1, wherein the system further comprises
a filter and a plurality of connecting hoses, the filter is
connected and communicated between the nozzle and the electrolyte
chamber via the connecting hoses to filter the electrolyte drawn
from the electrolyte chamber.
5. The system of the claim 1, wherein the system further comprises
a heating container and a plurality of connecting hoses, the
heating container is connected and communicated between the nozzle
and the electrolyte chamber via the connecting hoses for heating
the electrolyte.
6. The system of claim 5, wherein a temperature range for the
electrolyte heated by the heating container is from about 50 to
about 70 Celsius degrees.
7. The system of claim 1, wherein a distance range between the
nozzle and the workpiece is about 1 to about 10 centimeters.
8. The system of claim 1, wherein a voltage range supplied by the
power supply case is from about 5 to about 24 volts.
9. The system of claim 1, wherein the system further comprises a
plurality of connecting hoses, the electrolyte chamber comprises an
electrolyte receiver and a protective cover positioned on the
electrolyte receiver, the electrolyte is received in the
electrolyte receiver, the nozzle and the electrolyte receiver are
connected and communicated by the connecting hoses.
10. A method of electrolytic deburring for metal workpieces,
comprising: providing a system, the system comprising: a power
supply case comprising an anode connector and a cathode connector,
an electrolyte chamber receiving electrolyte; a anode positioned in
the electrolyte chamber for holding a workpiece, immersed in the
electrolyte, and electrically connected to the anode connector; a
cathode positioned in the electrolyte chamber and electrically
connected to the cathode connector, and at least a part of the
cathode immersed in the electrolyte; placing one of the workpieces
on the anode and immersing the workpiece in the electrolyte;
applying a current to the electrolyte chamber via the power supply
case and spraying the electrolyte by the nozzle to the workpiece,
wherein an electrolytic reaction happens in the electrolyte
chamber, and an electrolyte vortex is formed in the electrolyte
chamber for deburring.
11. The method of claim 10, wherein the system further comprises a
pump and a plurality of connecting hoses, the pump is connected and
communicated between the nozzle and the electrolyte chamber via the
connecting hoses, for pressuring the electrolyte drawn from the
electrolyte chamber.
12. The method of claim 11, wherein a pressure range applied by the
pump is from about 2 to about 6 MPa.
13. The method of claim 10, wherein the system further comprises a
filter and a plurality of connecting hoses, the filter is connected
and communicated between the nozzle and the electrolyte chamber via
the connecting hoses to filter the electrolyte drawn from the
electrolyte chamber.
14. The method of claim 10, wherein the system further comprises a
heating container and a plurality of connecting hoses, the
container is connected and communicated between the nozzle and the
electrolyte chamber via the connecting hoses for heating the
electrolyte.
15. The method of claim 10, wherein a preferable temperature range
for electrolyte heated by the heating container is from about 50 to
about 70 Celsius degrees.
16. The method of claim 10, wherein a preferable distance range
between the nozzle 80 and the workpiece is about 1 to about 10
centimeters.
17. The method of claim 10, wherein a preferable voltage range
supplied by the power supply case is from about 5 to about 24
volts.
18. The method of claim 10, wherein the electrolyte chamber
comprises an electrolyte receiver and a protective cover positioned
on the electrolyte receiver, the electrolyte is received in the
electrolyte receiver.
Description
BACKGROUND
[0001] 1. Technical Field
[0002] The present disclosure relates to a system and a method of
deburring, particularly to a system and a method of electrolytic
deburring for metal workpieces.
[0003] 2. Description of Related Art
[0004] Metal workpieces have burrs remaining after a mechanical
machining process. Removal of such burrs makes subsequent handling
safer and improves the workpiece appearance. Burrs of the metal
workpieces are usually removed by a manual deburring or a machining
deburring method. However, the whole procedures of such deburring
ways are time consuming. In addition, the burrs may not be removed
completely.
[0005] Therefore, there is room for improvement in the art.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] The components in the drawings are not necessarily drawn to
scale, the emphasis instead being placed upon clearly illustrating
the principles of the present disclosure. Moreover, in the
drawings, like reference numerals designate corresponding parts
throughout several views.
[0007] FIG. 1 is an isometric view of an embodiment of a system of
electrolytic deburring including an electrolyte chamber, a anode, a
cathode and a nozzle.
[0008] FIG. 2 is a schematic diagram of the system for electrolytic
deburring.
[0009] FIG. 3 is an exploded, isometric view of the electrolyte
chamber, the anode, the cathode and the nozzle.
[0010] FIG. 4 is a flow chart of a method of electrolytic
deburring.
DETAILED DESCRIPTION
[0011] FIGS. 1 and 2 show a system 100 of electrolytic deburring
for workpiece 200. The system 100 includes an electrolyte chamber
10, an anode 20 , a cathode 30, a power supply case 40, a filter
50, a heating container 60, a pump 70, a nozzle 80, and a plurality
of connecting hoses 90. A liquid (electrolyte 101) is received in
the electrolyte chamber 10. The anode 20, the cathode 30 and the
nozzle 80 are immersed in the electrolyte 101. The power supply
case 40 includes an anode connector 41 and a cathode connector 43.
The anode connector 41 is electrically connected to the anode 20,
and the cathode connector 43 is electrically connected to the
cathode 30. The filter 50 is positioned between the electrolyte
chamber 10 and the heating container 60 via the connecting hoses 90
for filtering the electrolyte 101. The pump 70 is connected to the
heating container 60 and the nozzle 80 via the connecting hoses 90
for pressurizing the electrolyte 101 heated by the heating
container 60. The electrolyte 101 delivered from the pump 60 is
sprayed into the electrolyte chamber 10 by the nozzle 80, which
also functions to create turbulence in the electrolyte.
[0012] Also referring to FIG. 3, the electrolyte chamber 10 is a
closed and hollow chamber. The electrolyte chamber 10 includes an
electrolyte receiver 11 and a protective cover 13. The electrolyte
receiver 11 is substantially rectangular. The electrolyte 101 is
received in the electrolyte receiver 10. In the illustrated
embodiment, the electrolyte 101 is a salt solution of low
concentration, and the pH value range is from about 9 to about 11.
In other embodiments, the protective cover 13 is omitted.
[0013] The anode 20 is a substantially cubic platform received in
the electrolyte receiver 11. A U-shaped passing groove 211 is
defined in a bottom of the anode 20. Thus, the electrolyte 101
flows easily into the electrolyte chamber 10 via the U-shaped
passing groove 211. The workpiece 200 is supported on the anode
20.
[0014] The cathode 30 is positioned in the electrolyte chamber 10
above the anode 20. The cathode 30 includes a connecting portion 31
and a mounting portion 33 connecting and communicating with the
connecting portion 31. The mounting portion 33 is immersed in the
electrolyte 101. In other embodiments, the whole cathode 30 may be
immersed in the electrolyte 101.
[0015] The power supply case 40 supplies electrical current to the
electrolyte chamber 10 and the cathode 30. The anode connector 41
and the cathode connector 43 are mounted on the power supply case
40. The anode connector 41 is electrically connected with the anode
20 to form a conducting pin. The cathode connector 43 is
electrically connected to the cathode 30 to form a conducting pin.
In the illustrated embodiment, the voltage range supplied by the
power supply case 40 is from about 5 to about 24 volts.
[0016] The filter 50 communicates with the electrolyte receiver 11
via a connecting hose 90, for filtering the electrolyte 101
delivered from the electrolyte receiver 11. The filtering of the
electrolyte 101 avoids damage to the workpiece 200 during the
cycle.
[0017] The heating container 60 communicates with the filter 50 by
a connecting hose 90 for heating the electrolyte 101, drawn through
the filter 50, to a suitable temperature for electrolyte reaction.
The preferable temperature range for electrolyte 101 is from about
50 to about 70 Celsius degrees
[0018] The pump 70 is connected to the heating container 60 and the
cathode 30. The electrolyte 101 drawn from the heating container 60
is pressured by the pump 70 to increase velocity of the flow. Thus,
a reaction time of the electrolytic reaction is shortened to avoid
the size of the workpiece 200 having an effect on the processing
time. In the illustrated embodiment, the pressure range applied by
the pump 70 is from about 2 to about 6 Mpa.
[0019] The nozzle 80 is mounted between the mounting portion 33 and
the workpiece 200. The nozzle 80 is immersed into the electrolyte
101 in the electrolyte receiver 11. The nozzle 80 is
trumpet-shaped. The trumpet-shaped nozzle 80 sprays the electrolyte
101 firstly pressured by the pump 70, so that a vortex is formed in
the electrolyte receiver 10 and extreme turbulence results. The
vortex and turbulence exerts forces on the burrs of the workpiece
200 to help remove the burrs. In the illustrated embodiment, a
distance range between the nozzle 80 and the workpiece 200 is about
1 to about 10 centimeters. In other embodiments, the nozzle 80 may
be other shapes, the nozzle 80 and the cathode 30 can be mounted on
a movable device (not shown), or only the nozzle 80 can be mounted
on the movable device for spraying while moving along a path.
[0020] The system 100 further includes a pressure gauge (not shown)
and a plurality of valves to monitor and control the system
100.
[0021] In assembly, the anode 20 and the cathode 30 are positioned
in the electrolyte chamber 10. The anode 20 is electrically
connected to the anode connecter 41 The electrolyte chamber 10, the
filter 50, the heating container 60, the pump 70 and the cathode 30
are connected in that order via the plurality of connecting hoses
90 to form a recycling system. The nozzle 80 is mounted on the
mounting portion 33. The cathode 30 is electrically connected to
the cathode connecter 43.
[0022] The electrolyte 101 is poured into the electrolyte receiver
11 and the heating container 60. The nozzle 80 is immersed in the
electrolyte 101 together with the mounting portion 33. The
workpiece 200 is supported by the anode 20, and is immersed in the
electrolyte 101. The power supply case 40 provides electrical
current between its anode connector 41 and the cathode connector
43. The electrolyte reaction occurs in the electrolyte chamber 10.
Because the current density in the burrs, edges and corners of the
workpiece 200 is higher than other portions of the workpiece 200,
the burrs are quickly electrochemically removed. In the illustrated
embodiment, the duration of the electrolyte reaction is from about
10 to about 120 seconds. The nozzle 80 sprays the pressured
electrolyte 101 to form the vortex and turbulence. The workpiece
200 is taken from the electrolyte chamber 10 and cleaned after
deburring process. In the cycle system 100, the electrolyte 101
taken from the electrolyte chamber 10 is filtered by the filter 50.
Then the electrolyte 101 is heated by the heating container 60
after filtering. In other embodiments, the electrolyte 101 may be
filtered after some time.
[0023] FIG. 4 shows a flowchart of a method for electrolytic
deburring of metal workpieces 200. The method includes steps as
follows:
[0024] Step 401: The system 100 of electrolytic deburring for metal
workpieces 200 is provided.
[0025] Step 402: The workpiece 200 is placed on the anode 20, and
is immersed in the liquid electrolyte 101.
[0026] Step 403: The electrical current is applied between the
anode connector 41 and the cathode connector 43 by the power supply
case 40, the electrolytic reaction takes place to remove burrs of
the workpiece 200, and the electrolyte 101 drawn from the
electrolyte chamber 10 is sprayed to form a vortex and turbulence
by the nozzle 80.
[0027] Step 404: The workpiece 200 is taken from the electrolyte
chamber 100 after deburring, and then is cleaned.
[0028] In the present disclosure, the burrs are removed during the
electrolytic reaction. The vortexes and turbulence formed by the
nozzle 80 apply pressure to the burrs to help remove burrs of the
workpiece 200 cleanly and efficiency. The pump 70 applies pressure
to the electrolytic 101 to the velocity and force of the
electrolytic 101 flow, and the time of the electrolytic reaction is
shortened. The electrolytic 101 is heated by the heating container
60 to a suitable temperature for electrolytic reaction. The filter
50 filters the electrolytic 101, then the electrolytic 101 can be
recycled to save resources. In addition, the U-shaped passing
groove 211 is formed on the anode 20 for maximum effectiveness in
the flow of the electrolytic 101 in the electrolyte chamber 10.
[0029] In other embodiments, the nozzle 80 is directly positioned
above the electrolytic 101 of the electrolytic room 10 for directly
spraying electrolytic 101.
[0030] In other embodiments, the nozzle 80 can be directly
connected and connected to the pump 70 by the connecting hose 90,
and the cathode 30 can be directly connected to the cathode
connector 43.
[0031] It is believed that the present embodiments and their
advantages will be understood from the foregoing description, and
it will be apparent that various changes may be made thereto
without departing from the spirit and scope of the embodiments or
sacrificing all of its material advantages.
* * * * *