CN109277915B - Polishing method and device for electric heating tube contact - Google Patents
Polishing method and device for electric heating tube contact Download PDFInfo
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- CN109277915B CN109277915B CN201811097098.1A CN201811097098A CN109277915B CN 109277915 B CN109277915 B CN 109277915B CN 201811097098 A CN201811097098 A CN 201811097098A CN 109277915 B CN109277915 B CN 109277915B
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- electric heating
- heating tube
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- diameter
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- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
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- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention belongs to the technical field of machining, and particularly relates to a polishing method and polishing equipment for an electric heating tube contact. The polishing machine comprises a polishing mechanism and a conveying mechanism which are connected with each other, wherein a column in the conveying mechanism is connected with a conveying belt through a bearing and a bearing seat connecting shaft, and a plurality of groups of double-hole structures are uniformly distributed on the conveying belt; two outer frames in the polishing mechanism are oppositely arranged on two sides of the conveyor belt in a [ ] shape, and the upper ends of the outer frames are connected with iron brushes through sliding blocks, so that the two opposite iron brushes in each group are matched with the double-hole structure on the conveyor belt. The invention realizes smooth polishing of the electric heating tube contact, ensures that the surface oxide skin is sufficiently removed, and thus improves the heat transfer efficiency of the electric heating tube; when the iron brushes are abraded greatly, the distance between the iron brushes is shortened by adjusting the outer frame, so that the service time of the iron brushes is prolonged, and the production cost is reduced; the manpower is saved, and one equipment only needs two people to lay and take out the electric heating tube, and compared with the traditional polishing mode, the working efficiency is greatly improved.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a polishing method and polishing equipment for an electric heating tube contact.
Background
Currently, in the prior art, two methods are generally adopted for polishing the contact of the electric heating tube:
1. mechanical method:
the scale is removed in a manual mode, the removing method needs to be specially arranged for personnel to operate, and although the removing method has no requirement on the technical aspect, the defects are that the labor cost of enterprises is increased invisibly, the working pressure of workers is increased, and the uniformity of removing cannot be guaranteed when the manual mode is adopted for removing. Therefore, the quality of the workpiece is uneven, the quality of the product cannot be ensured, and the manual production efficiency is relatively low;
2. the chemical method comprises the following steps:
(1) pickling with triacid (sulfuric acid + nitric acid + hydrochloric acid): the three-acid pickling is prepared by three acids according to a certain proportion, and is an effective pickling method for removing the oxide skin of the stainless steel. The three-acid pickling method can successfully remove the stainless steel oxide skin, but has the defects that a large amount of nitrogen dioxide is separated out in the pickling process, the labor condition is worsened, and the environment is polluted. In addition, the pickling process is easy to generate over-pickling phenomenon, so that the method is not advocated to be widely applied to removing the supplied oxide scale.
(2) Acid pickling with nitric acid and hydrofluoric acid: the method is one of the better methods for pickling stainless steel. The common mixture ratio is as follows: the pickling time of 4-6 percent of hydrofluoric acid (HF) and 8-12 percent of nitric acid (HNO) at the use temperature of 50-600 ℃ depends on the condition of oxide skin on the surface of the steel material: typically 20-40 minutes. The operation process must be frequently seen, so that the over-pickling phenomenon is prevented. The acid pickling method has the advantages of high acid pickling speed, easy operation and good quality, but has the defects of high toxicity of hydrofluoric acid and need of good ventilation conditions and wastewater treatment conditions.
(3) The alkali boiling-acid washing composite process is mainly aimed at overcoming the weak point of triacid acyl process. The composite method can improve the pickling quality and has less metal consumption. The oxide skin can be loosened by alkaline cooking, and then the oxide skin is removed by an acid pickling method. The alkaline cooking liquor is generally prepared from a mixed solution of sodium hydroxide (NaOH) and sodium nitrate (NaNO). The alkaline boiling time is related to the steel grade, specification, quantity, oxide skin state and the like of the product. The alkali-boiled steel is immediately immersed into a water tank to be exploded and descaled, and then the descaling is removed by a three-acid pickling method. But has the disadvantage of high risk, and the alkali-boiled steel material should be dry and anhydrous to avoid the hot alkali liquor from hurting people. The operation process needs to be careful and careful! Multiple observations, multiple changes in the recording surface are necessary. Achieving the purpose of safe operation.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a polishing method for an electric heating tube contact by adopting a customized belt with holes and a polishing tool, which solves the problems of time and labor waste, uneven quality, high cost, high pollution and the like of the traditional manual polishing method.
The technical scheme adopted by the invention for realizing the purpose is as follows: a polishing method for an electric heating tube contact is characterized by comprising the following steps: the method comprises the following steps:
s1, checking the polishing equipment, determining the power state, determining that no sundries exist, and starting after all the sundries are normal;
s2, inserting the electric heating tube contact into the hole of the conveyor belt;
s3, the conveyor belt drives the electric heating tube contact to be polished to be transmitted to the polishing mechanism, the electric heating tube contact is polished by two groups of iron brushes with different rotating directions in the polishing mechanism respectively, and each group of iron brushes comprises two iron brushes with different rotating directions;
s4, polishing the cylindrical contact by the first group of iron brushes for 180 degrees, and polishing the cylindrical contact by the second group of iron brushes for another 180 degrees, namely, polishing the contact by the two groups of iron brushes for 360 degrees completely, so that oxide scales on the surface of the contact are polished completely, and the roundness of the contact is fully ensured;
and S5, taking out the ground electric heating tube contact by another worker when the ground electric heating tube contact reaches the downstream along with the conveyor belt.
In the S4, the rotating speed of the first group of iron brushes is 300-3500 rpm, the polishing time is 0.5-5S, the rotating speed of the second group of iron brushes is 300-3500 rpm, and the polishing time is 0.5-5S.
The diameter of the hole in the conveyor belt is determined according to the diameter of the electric heating tube contact to be polished, the diameter of the hole is larger than the diameter of the electric heating tube contact to be polished by 0.5-1 mm, and the diameter range of the hole is 1-5 mm.
The material of the iron brush can be selected from 201, 206, 304 and 316 stainless steel wires, carbon steel wires and copper-clad steel wires according to different materials to be polished, the diameter of the iron brush is 0.1-0.5 mm, and the hardness of the iron brush is 40-60 HRC.
The equipment adopted by the electric heating tube contact polishing method is characterized in that: the polishing machine comprises a polishing mechanism and a conveying mechanism which are connected with each other, wherein a column in the conveying mechanism is connected with a conveying belt through a bearing and a bearing seat connecting shaft, and a plurality of groups of double-hole structures are uniformly distributed on the conveying belt; two outer frames in the polishing mechanism are oppositely arranged on two sides of the conveyor belt in a [ ] shape, and the upper ends of the outer frames are connected with iron brushes through sliding blocks, so that the two opposite iron brushes in each group are matched with the double-hole structure on the conveyor belt.
The diameter of the hole in the conveyor belt is determined according to the diameter of the electric heating tube contact to be polished, the diameter of the hole is larger than the diameter of the electric heating tube contact to be polished by 0.5-1 mm, and the diameter range of the hole is 1-5 mm. .
The material of the iron brush can be selected from 201, 206, 304 and 316 stainless steel wires, carbon steel wires and copper-clad steel wires according to different materials to be polished, the diameter of the iron brush is 0.1-0.5 mm, and the hardness of the iron brush is 40-60 HRC.
The invention realizes smooth polishing of the electric heating tube contact, ensures that the surface oxide skin is sufficiently removed, and thus improves the heat transfer efficiency of the electric heating tube; when the iron brushes are abraded greatly, the distance between the iron brushes is shortened by adjusting the outer frame, so that the service time of the iron brushes is prolonged, and the production cost is reduced; the manpower is saved, and one equipment only needs two people to lay and take out the electric heating tube, and compared with the traditional polishing mode, the working efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural view (perspective view) of an electric heating tube contact grinding device according to the present invention.
Fig. 2 is a schematic structural view (front view) of the electric heating tube contact grinding device of the present invention.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a side view of fig. 2.
Fig. 5 is a schematic structural view of a polishing mechanism of the electric heating tube contact polishing device of the present invention.
Fig. 6 is a side view of fig. 5.
Fig. 7 is a top view of fig. 5.
Fig. 8 is a schematic structural view of a conveying mechanism of the electric heating tube contact grinding device of the present invention.
Fig. 9 is a top view of fig. 8.
Fig. 10 is a side view of fig. 8.
Fig. 11 is a schematic rotation diagram of two groups of iron brushes in operation.
Fig. 12 is a second case of the two groups of iron brushes in rotation during operation.
In the figure: 1. the outer frame 2, the slide block 3, the iron brush 4, the bearing 5, the bearing seat 6, the pillar 7, the shaft 8 and the conveyor belt.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
example 1
A polishing method for an electric heating tube contact comprises the following steps:
s1, checking the polishing equipment, determining the power state, determining that no sundries exist, and starting after all the sundries are normal;
s2, inserting the electric heating tube contact into the hole of the conveyor belt 8;
s3, the conveyor belt 8 drives the electric heating tube contact to be polished to the polishing mechanism, the electric heating tube contact is polished by two sets of iron brushes 3 with different rotation directions in the polishing mechanism, each set of iron brushes 3 includes two iron brushes with different rotation directions, as shown in fig. 11 or fig. 12;
s4, the first group of iron brushes 3 polish the cylindrical contacts for 180 degrees, the second group of iron brushes 3 polish the cylindrical contacts for another 180 degrees, namely the two groups of iron brushes 3 can polish the contacts for 360 degrees, so that oxide scales on the surfaces of the contacts are polished completely, and the roundness of the contacts is fully ensured;
and S5, taking out the ground electric heating tube contact by another worker when the ground electric heating tube contact reaches the downstream along with the conveyor belt 8.
In the S4, the rotating speed of the first group of iron brushes 3 is 300 revolutions per minute, the grinding time is 5S, the rotating speed of the second group of iron brushes 3 is 3500 revolutions per minute, and the grinding time is 0.5S.
The diameter of the hole on the conveyor belt 8 is determined according to the diameter of the electric heating tube contact to be polished, and in the embodiment, the diameter of the hole is larger than the diameter of the electric heating tube contact to be polished by 0.5mm, and the diameter of the hole is 1 mm.
The material of the iron brush 3 is selected according to different materials to be polished, and a 316 stainless steel wire with the diameter of 0.1mm and the hardness of 40HRC is adopted in the embodiment.
Example 2
As shown in fig. 1 to 10, an apparatus used in the polishing method for an electric heating tube contact in embodiment 1 includes a polishing mechanism and a conveying mechanism connected with each other, wherein a shaft 7 is connected to a column 6 in the conveying mechanism through a bearing 4 and a bearing seat 5, the shaft 7 is connected to a conveyor belt 8, and a plurality of groups of double-hole structures are uniformly distributed on the conveyor belt 8; two outer frames 1 in the grinding mechanism are oppositely arranged on two sides of the conveyor belt 8 in a [ ]shape, the upper ends of the outer frames 1 are connected with the iron brushes 3 through the sliding blocks 2, and the two opposite iron brushes 3 in each group are matched with the double-hole structure on the conveyor belt 8.
Example 3
The structure and connection relation of each part of the electric heating tube contact polishing device in the embodiment are the same as those in embodiment 2, and the operation method has the same steps as those in embodiment 1, and the difference is as follows:
the diameter of the hole on the conveyor belt 8 is larger than the diameter of the electric heating tube contact to be polished by 0.75mm, and the diameter of the hole is 3 mm;
the iron brush 3 is made of carbon steel wires, the diameter of each carbon steel wire is 0.3mm, and the hardness of each carbon steel wire is 50 HRC;
in the S4, the rotating speed of the first group of iron brushes 3 is 1900 rpm, the grinding time is 2.7S, the rotating speed of the second group of iron brushes 3 is 2000 rpm, and the grinding time is 3S.
Example 4
The structure and connection relation of each part of the electric heating tube contact polishing device in the embodiment are the same as those in embodiment 2, and the operation method has the same steps as those in embodiment 1, and the difference is as follows:
the diameter of the hole on the conveyor belt 8 is 1mm larger than the diameter of the electric heating tube contact to be polished, and the diameter of the hole is 5 mm;
the iron brush 3 is made of copper-clad steel wires, the diameter of the steel wires is 0.5mm, and the hardness of the steel wires is 60 HRC;
in the S4, the rotating speed of the first group of iron brushes 3 is 3500 rpm, the grinding time is 0.5S, the rotating speed of the second group of iron brushes 3 is 300 rpm, and the grinding time is 5S.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A polishing method for an electric heating tube contact is characterized by comprising the following steps: the method comprises the following steps:
s1, checking the polishing equipment, determining the power state, determining that no sundries exist, and starting after all the sundries are normal;
s2, inserting the electric heating tube contact into the hole of the conveyor belt (8); the diameter of the hole in the conveyor belt (8) is determined according to the diameter of the electric heating tube contact to be polished, the diameter of the hole is 0.5-1 mm larger than the diameter of the electric heating tube contact to be polished, and the diameter range of the hole is 1-5 mm;
s3, the conveyor belt (8) drives the electric heating tube contact to be polished to be transmitted to the polishing mechanism, the electric heating tube contact is polished by two groups of iron brushes (3) with different rotating directions in the polishing mechanism respectively, and each group of iron brushes (3) comprises two iron brushes with different rotating directions; the iron brush (3) is made of one or more of 201, 206, 304 and 316 stainless steel wires, carbon steel wires and copper-clad steel wires according to different materials to be polished, the diameter of the iron brush is 0.1-0.5 mm, and the hardness of the iron brush is 40-60 HRC;
s4, polishing the cylindrical contact by 180 degrees through the first group of iron brushes (3), and polishing the cylindrical contact by another 180 degrees through the second group of iron brushes (3), namely, polishing the contact by 360 degrees through the two groups of iron brushes (3), so that oxide scales on the surface of the contact are polished completely, and the roundness of the contact is fully ensured; the rotating speed of the first group of iron brushes (3) is 300-3500 rpm, the polishing time is 0.5-5S, the rotating speed of the second group of iron brushes (3) is 300-3500 rpm, and the polishing time is 0.5-5S;
s5, the polished electric heating tube contact reaches the downstream along with the conveyor belt (8), and another worker takes out the polished electric heating tube contact;
the equipment adopted by the polishing method of the electric heating tube contact comprises a polishing mechanism and a conveying mechanism which are connected with each other, wherein a column (6) in the conveying mechanism is connected with a shaft (7) through a bearing (4) and a bearing seat (5), the shaft (7) is connected with a conveying belt (8), and a plurality of groups of double-hole structures are uniformly distributed on the conveying belt (8); two outer frames (1) in the polishing mechanism are oppositely arranged on two sides of a conveyor belt (8) in a [ ]shape, the upper ends of the outer frames (1) are connected with iron brushes (3) through sliding blocks (2), and the two opposite iron brushes (3) in each group are matched with a double-hole structure on the conveyor belt (8); the diameter of the hole in the conveyor belt (8) is determined according to the diameter of the electric heating tube contact to be polished, the diameter of the hole is 0.5-1 mm larger than the diameter of the electric heating tube contact to be polished, and the diameter range of the hole is 1-5 mm; the iron brush (3) is made of one or more of 201, 206, 304 and 316 stainless steel wires, carbon steel wires and copper-clad steel wires with the diameter of 0.1-0.5 mm and the hardness of 40-60 HRC according to different materials to be polished.
2. An apparatus for polishing a contact of an electric heating tube according to claim 1, characterized in that: the polishing machine comprises a polishing mechanism and a conveying mechanism which are connected with each other, wherein a connecting shaft (7) is arranged on a column (6) in the conveying mechanism through a bearing (4) and a bearing seat (5), the shaft (7) is connected with a conveying belt (8), and a plurality of groups of double-hole structures are uniformly distributed on the conveying belt (8); two outer frames (1) in the polishing mechanism are arranged on two sides of the conveyor belt (8) in a [ ]' shape, the upper ends of the outer frames (1) are connected with the iron brushes (3) through the sliding blocks (2), and the two opposite iron brushes (3) in each group are matched with the double-hole structure on the conveyor belt (8).
3. The apparatus of claim 2, wherein: the diameter of the hole in the conveyor belt (8) is determined according to the diameter of the electric heating tube contact to be polished, the diameter of the hole is 0.5-1 mm larger than the diameter of the electric heating tube contact to be polished, and the diameter range of the hole is 1-5 mm.
4. The apparatus of claim 2, wherein: the iron brush (3) is made of one or more of 201, 206, 304 and 316 stainless steel wires, carbon steel wires and copper-clad steel wires with the diameter of 0.1-0.5 mm and the hardness of 40-60 HRC according to different materials to be polished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097098.1A CN109277915B (en) | 2018-09-20 | 2018-09-20 | Polishing method and device for electric heating tube contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097098.1A CN109277915B (en) | 2018-09-20 | 2018-09-20 | Polishing method and device for electric heating tube contact |
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| Publication Number | Publication Date |
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| CN109277915A CN109277915A (en) | 2019-01-29 |
| CN109277915B true CN109277915B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811097098.1A Active CN109277915B (en) | 2018-09-20 | 2018-09-20 | Polishing method and device for electric heating tube contact |
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| CN115284147B (en) * | 2022-08-19 | 2023-10-24 | 山东高强紧固件有限公司 | Bolt rust cleaning device |
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| CN1389383A (en) * | 2001-06-05 | 2003-01-08 | 哈巴息脱股份公司 | Radial conveyer belt with structure for preventing finger from ache resulted form clamping |
| JP2005014180A (en) * | 2003-06-27 | 2005-01-20 | Matsushita Electric Ind Co Ltd | Manufacturing assembling device |
| CN201286394Y (en) * | 2008-08-04 | 2009-08-12 | 深圳市欧标实业发展有限公司 | Hanging hook for carrying with articles and talkie with the hanging hook |
| CN102030174A (en) * | 2010-11-02 | 2011-04-27 | 徐毅 | Bracket for synchronous conveyor belt of ceramic, stone and glass edging machine |
| CN105171577A (en) * | 2015-09-30 | 2015-12-23 | 德州义信德汽车配件有限公司 | Steel backing deburring machine |
-
2018
- 2018-09-20 CN CN201811097098.1A patent/CN109277915B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389383A (en) * | 2001-06-05 | 2003-01-08 | 哈巴息脱股份公司 | Radial conveyer belt with structure for preventing finger from ache resulted form clamping |
| JP2005014180A (en) * | 2003-06-27 | 2005-01-20 | Matsushita Electric Ind Co Ltd | Manufacturing assembling device |
| CN201286394Y (en) * | 2008-08-04 | 2009-08-12 | 深圳市欧标实业发展有限公司 | Hanging hook for carrying with articles and talkie with the hanging hook |
| CN102030174A (en) * | 2010-11-02 | 2011-04-27 | 徐毅 | Bracket for synchronous conveyor belt of ceramic, stone and glass edging machine |
| CN105171577A (en) * | 2015-09-30 | 2015-12-23 | 德州义信德汽车配件有限公司 | Steel backing deburring machine |
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| CN109277915A (en) | 2019-01-29 |
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