CN111633473A - Machining method of reducing die - Google Patents
Machining method of reducing die Download PDFInfo
- Publication number
- CN111633473A CN111633473A CN202010310017.2A CN202010310017A CN111633473A CN 111633473 A CN111633473 A CN 111633473A CN 202010310017 A CN202010310017 A CN 202010310017A CN 111633473 A CN111633473 A CN 111633473A
- Authority
- CN
- China
- Prior art keywords
- reducing die
- cylinder body
- processed
- inner cavity
- lower cylinder
- 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.)
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Classifications
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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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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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
- 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
- B24B31/006—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 for grinding the interior surfaces of hollow workpieces
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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
- 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
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
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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
- 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
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
- B24B31/14—Abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls
Abstract
The invention discloses a machining method of a reducing die, which comprises the following specific steps: firstly, preparing a proper diameter reducing die to be processed, a lower cylinder body, an upper cylinder body, a piston and a soft polishing medium; then putting the soft polishing medium into the lower cylinder body; then the diameter-reducing die to be processed is placed on the lower cylinder body, namely the diameter-reducing die to be processed is placed between the upper cylinder body and the lower cylinder body, and the diameter-reducing die to be processed is firmly fixed by the upper cylinder body and the lower cylinder body; the piston moves upwards to push the soft polishing medium to enter the inner cavity of the reducing die to be processed and move to the sizing area of the inner cavity of the reducing die along the guide area of the inner cavity of the reducing die, and in the moving process of the soft polishing medium, the guide area of the inner cavity of the reducing die, the sizing area of the inner cavity of the reducing die and the transitional arc of the inner cavity of the reducing die are synchronously processed; and repeating the processes, and finishing the machining process after the size of the sizing area of the reducing die reaches the target size. The reducing die processed by the method is smoother in transition and high in consistency.
Description
Technical Field
The invention relates to the technical field of nonferrous metal processing, in particular to a processing method of a reducing die.
Background
In the existing forming and drawing process, the performance of the reducing die directly influences the tooth profile parameters and the wall thickness stability of the internal thread copper pipe, and if the using effect of the reducing die is poor, the product quality and the production efficiency are directly and greatly influenced. The tracking finds that the main parameters influencing the using effect of the reducing die are the size of the transition arc and the smoothness of the transition arc.
In the currently used reducing die processing technology, the size of an arc cannot be accurately controlled, and a transition arc, a sizing area and a guide area are processed in batches, so that the smoothness of the transition arc is greatly insufficient.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems in the background art, the method for processing the reducing die is provided, and the reducing die processed by the method is smoother in transition and high in consistency.
The technical scheme adopted by the invention for solving the technical problems is as follows: a machining method of a reducing die comprises the following specific steps:
the first step is as follows: firstly, preparing a proper diameter reducing die to be processed, a lower cylinder body, an upper cylinder body, a piston and a soft polishing medium;
the second step is as follows: then putting the soft polishing medium into the lower cylinder body;
the third step: then the diameter-reducing die to be processed is placed on the lower cylinder body, namely the diameter-reducing die to be processed is placed between the upper cylinder body and the lower cylinder body, and the diameter-reducing die to be processed is firmly fixed by the upper cylinder body and the lower cylinder body;
the fourth step: the piston moves upwards to push the soft polishing medium to enter the inner cavity of the reducing die to be processed and move to the sizing area of the inner cavity of the reducing die along the guide area of the inner cavity of the reducing die, and in the moving process of the soft polishing medium, the guide area of the inner cavity of the reducing die, the sizing area of the inner cavity of the reducing die and the transitional arc of the inner cavity of the reducing die are synchronously processed;
the fifth step: and repeating the processes, and finishing the machining process after the size of the sizing area of the reducing die reaches the target size.
More specifically, in the above technical solution, in the fourth step, after the soft polishing medium in the lower cylinder flows out, the soft polishing medium is refilled into the lower cylinder.
More specifically, in the above technical solution, the soft polishing medium is a diamond soft abrasive.
More specifically, in the above technical solution, the diameter of the extending end of the piston is consistent with the diameter of the inner cavity of the lower cylinder.
More specifically, in the above technical solution, the upper cylinder, the lower cylinder, the piston and the to-be-processed reducing die are all symmetrical structures.
More specifically, in the above technical solution, the axis of the upper cylinder, the axis of the cavity of the reducing die, the axis of the lower cylinder, and the axis of the piston are located on the same vertical line.
More specifically, in the above technical solution, the piston is any one of a gasoline engine piston, a diesel engine piston and a natural gas piston.
More specifically, in the above technical solution, an inner cavity of the lower cylinder body is communicated with an inner cavity of the reducing die.
More specifically, in the above technical solution, the length of the lower cylinder is greater than the length of the reducing die to be processed, and the length of the upper cylinder is less than the length of the reducing die to be processed.
The invention has the beneficial effects that: the invention relates to a reducing die processing method, which adopts soft polishing medium to fill the inner cavity of a reducing die blank processed by a grinding machine, pushes the soft polishing medium to flow from a guide area to a sizing area in the inner cavity of the reducing die blank according to the drawing motion process of a copper pipe through pressure, and realizes the synchronous processing of the guide area, the sizing area and a transition arc of the reducing die by utilizing the cutting force of the soft polishing medium.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a reducing die to be processed.
The reference numbers in the drawings are: 1. a guiding zone; 2. a sizing zone; 3. a transition arc; 4. a lower cylinder body; 5. an upper cylinder body; 6. a piston; 7. a soft polishing medium.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "one side", "the other side", "both sides", "between", "middle", "upper", "lower", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the method for processing the reducing die of the invention comprises the following specific steps:
the first step is as follows: firstly, preparing a reducing die to be processed, a lower cylinder 4, an upper cylinder 5, a piston 6 and a soft polishing medium 7;
the second step is as follows: then the soft polishing medium 7 is put into the lower cylinder 4;
the third step: then the diameter-reducing die to be processed is placed on the lower cylinder body 4, namely the diameter-reducing die to be processed is placed between the upper cylinder body 5 and the lower cylinder body 4, and the diameter-reducing die to be processed is firmly fixed by the upper cylinder body 5 and the lower cylinder body 4;
the fourth step: the piston 6 moves upwards to push the soft polishing medium 7 to enter the inner cavity of the reducing die to be processed and move to the sizing area 2 of the inner cavity of the reducing die along the guide area 1 of the inner cavity of the reducing die, and in the moving process of the soft polishing medium 7, the guide area 1 of the inner cavity of the reducing die, the sizing area 2 of the inner cavity of the reducing die and the transition arc 3 of the inner cavity of the reducing die are synchronously processed;
the fifth step: and repeating the processes, and finishing the machining process after the size of the sizing area 2 of the reducing die reaches the target size.
In the fourth step, after the soft polishing medium 7 in the lower cylinder 4 flows out, the soft polishing medium 7 is refilled into the lower cylinder 4. The soft polishing medium 7 is diamond soft abrasive. The diameter of the extending end of the piston 6 is consistent with the diameter of the inner cavity of the lower cylinder body 4. The upper cylinder body 5, the lower cylinder body 4, the piston 6 and the diameter reducing die to be processed are all of symmetrical structures. The axial line of the upper cylinder 5, the axial line of the inner cavity of the reducing die, the axial line of the lower cylinder 4 and the axial line of the piston 6 are positioned on the same vertical straight line. The piston 6 is any one of a gasoline engine piston, a diesel engine piston and a natural gas piston. The inner cavity of the lower cylinder body 4 is communicated with the inner cavity of the reducing die. The length dimension of the lower cylinder body is larger than that of the reducing die to be processed, and the length dimension of the upper cylinder body is smaller than that of the reducing die to be processed.
The reducing die processed by the method has smoother transition and high consistency, and can effectively control the reducing amount of the copper pipe in the drawing process, thereby improving the processing efficiency of the internal thread copper pipe and stabilizing the product quality.
The processing method of the reducing die has the following advantages: compared with the existing processing mode, the processing method can accurately control the size of the transition arc, and the transition arc is more arc without edges and corners; the processing method can effectively improve the consistency of processing the reducing dies in different batches; the diameter reducing amount of the reducing mill processed by the processing method can be controlled within 0.01 mm; the processing method can simultaneously process a plurality of workpieces to improve the processing efficiency; the processing method is combined with a honing machine, so that the automation level can be improved, and unmanned operation can be realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A machining method of a reducing die is characterized by comprising the following specific steps:
the first step is as follows: firstly, preparing a proper diameter-reducing die to be processed, a lower cylinder body (4), an upper cylinder body (5), a piston (6) and a soft polishing medium (7);
the second step is as follows: then putting the soft polishing medium (7) into the lower cylinder body (4);
the third step: then the diameter-reducing die to be processed is placed on the lower cylinder body (4), namely the diameter-reducing die to be processed is placed between the upper cylinder body (5) and the lower cylinder body (4), and the diameter-reducing die to be processed is firmly fixed by the upper cylinder body (5) and the lower cylinder body (4);
the fourth step: the piston (6) moves upwards to push the soft polishing medium (7) to enter the inner cavity of the reducing die to be processed, and the soft polishing medium moves towards the sizing area (2) of the inner cavity of the reducing die along the guide area (1) of the inner cavity of the reducing die, so that the guide area (1) of the inner cavity of the reducing die, the sizing area (2) of the inner cavity of the reducing die and the transition arc (3) of the inner cavity of the reducing die are synchronously processed in the moving process of the soft polishing medium (7);
the fifth step: and repeating the processes, and finishing the machining process after the size of the sizing area (2) of the reducing die reaches the target size.
2. A method of machining a reducing die as defined in claim 1, wherein: in the fourth step, after the soft polishing medium (7) in the lower cylinder body (4) flows out, the soft polishing medium (7) is refilled into the lower cylinder body (4).
3. A method of machining a reducing die as defined in claim 1, wherein: the soft polishing medium (7) is a diamond soft abrasive.
4. A method of machining a reducing die as defined in claim 1, wherein: the diameter of the extending end of the piston (6) is consistent with the diameter of the inner cavity of the lower cylinder body (4).
5. A method of machining a reducing die as defined in claim 1, wherein: the upper cylinder body (5), the lower cylinder body (4), the piston (6) and the diameter reducing die to be processed are all of symmetrical structures.
6. A method of machining a reducing die as defined in claim 5, wherein: the axis of the upper cylinder body (5), the axis of the inner cavity of the reducing die, the axis of the lower cylinder body (4) and the axis of the piston (6) are positioned on the same vertical line.
7. A method of machining a reducing die as defined in claim 1, wherein: the piston (6) is any one of a gasoline engine piston, a diesel engine piston and a natural gas piston.
8. A method of machining a reducing die as defined in claim 1, wherein: and the inner cavity of the lower cylinder body (4) is communicated with the inner cavity of the reducing die.
9. A method of machining a reducing die as defined in claim 1, wherein: the length dimension of the lower cylinder body is larger than that of the reducing die to be processed, and the length dimension of the upper cylinder body is smaller than that of the reducing die to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310017.2A CN111633473A (en) | 2020-04-20 | 2020-04-20 | Machining method of reducing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310017.2A CN111633473A (en) | 2020-04-20 | 2020-04-20 | Machining method of reducing die |
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| Publication Number | Publication Date |
|---|---|
| CN111633473A true CN111633473A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010310017.2A Pending CN111633473A (en) | 2020-04-20 | 2020-04-20 | Machining method of reducing die |
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| CN (1) | CN111633473A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06179234A (en) * | 1992-05-18 | 1994-06-28 | Kobe Steel Ltd | Extrusion molding die |
| CN1263487A (en) * | 1997-07-11 | 2000-08-16 | 水力喷射技术公司 | Method and apparatus for producing high-velocity particle stream |
| CN105538048A (en) * | 2015-12-15 | 2016-05-04 | 广东工业大学 | Self-pressurized high-speed abrasive flow type hole inner surface polishing method |
| CN105945709A (en) * | 2016-04-27 | 2016-09-21 | 大连交通大学 | Abrasive water nozzle inner hole grinding machining fixture and method |
| CN111015523A (en) * | 2019-12-31 | 2020-04-17 | 西安成立航空制造有限公司 | Clamp and method for removing burrs of central flow passage of fuel injection nozzle of aero-engine by abrasive flow |
-
2020
- 2020-04-20 CN CN202010310017.2A patent/CN111633473A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06179234A (en) * | 1992-05-18 | 1994-06-28 | Kobe Steel Ltd | Extrusion molding die |
| CN1263487A (en) * | 1997-07-11 | 2000-08-16 | 水力喷射技术公司 | Method and apparatus for producing high-velocity particle stream |
| CN105538048A (en) * | 2015-12-15 | 2016-05-04 | 广东工业大学 | Self-pressurized high-speed abrasive flow type hole inner surface polishing method |
| CN105945709A (en) * | 2016-04-27 | 2016-09-21 | 大连交通大学 | Abrasive water nozzle inner hole grinding machining fixture and method |
| CN111015523A (en) * | 2019-12-31 | 2020-04-17 | 西安成立航空制造有限公司 | Clamp and method for removing burrs of central flow passage of fuel injection nozzle of aero-engine by abrasive flow |
Non-Patent Citations (1)
| Title |
|---|
| 钱苗根: "《现代表面工程》", 30 September 2012 * |
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Application publication date: 20200908 |
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