CN111604665A - Pipe part assembling process - Google Patents
Pipe part assembling process Download PDFInfo
- Publication number
- CN111604665A CN111604665A CN202010420557.6A CN202010420557A CN111604665A CN 111604665 A CN111604665 A CN 111604665A CN 202010420557 A CN202010420557 A CN 202010420557A CN 111604665 A CN111604665 A CN 111604665A
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- China
- Prior art keywords
- workpiece
- clamping portion
- clamping
- press
- fitting tool
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- 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.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a pipe part assembling process, which comprises the following steps: s1, mounting a first workpiece to be assembled on the press fitting tool, wherein the first workpiece is a pipe part; s2, applying pressure to the press fitting tool by a press machine, and pressing the first workpiece to be assembled into the mounting hole of the second workpiece by the press fitting tool; the press fitting tool comprises a pressing rod and a pipe clamp, wherein the pipe clamp is sleeved on the first workpiece and used for applying pressure to the first workpiece in the step S2, the pressing rod is provided with an avoiding groove for the first workpiece and the pipe clamp to be inserted into, and the pipe clamp is provided with a lower flange surface used for being in contact with a pier drum part of the first workpiece. The pipe part assembling process can be suitable for assembling various pipe parts, and has the advantages of wide application range and high product qualification rate.
Description
Technical Field
The invention belongs to the technical field of product assembly methods, and particularly relates to a pipe part assembly process.
Background
When pressure equipment pipe class part, need adopt suitable frock to assemble, avoid because of the assembly is improper, lead to appearing the pressure partially, warp scheduling problem, and then lead to influencing the leakproofness and the reliability of part.
The pipe-like parts are generally divided into a pressed-in portion, a pier drum portion, and a projected portion.
The existing assembly method and the existing defects are as follows:
1. the pipe orifice is used as a pressure surface, the pressed part is pressed into the mounting hole, the assembling direction cannot be ensured, the sealing reliability is poor, local stress is easy to cause the deformation of the mounting hole to be dense, and the method cannot be applied to the assembly of the bent pipe;
2) the simple compression bar is adopted, 50% of pier drums are used as stress surfaces, the pressing-in parts are pressed into the mounting holes, the pier drums are locally stressed, the quality problems of deformation and cracking are easy to occur, the application range is limited, and the press mounting of variable-caliber pipe parts cannot be met.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a pipe part assembling process, and aims to improve the assembling qualified rate.
In order to achieve the purpose, the invention adopts the technical scheme that: the pipe part assembling process comprises the following steps:
s1, mounting a first workpiece to be assembled on the press fitting tool, wherein the first workpiece is a pipe part;
s2, applying pressure to the press fitting tool by a press machine, and pressing the first workpiece to be assembled into the mounting hole of the second workpiece by the press fitting tool;
the press fitting tool comprises a press rod and a jacket, wherein the jacket is sleeved on the first workpiece and used for applying pressure to the first workpiece in the step S2, the press rod is provided with an avoiding groove for inserting the first workpiece and the jacket, and the jacket is provided with a lower flange surface used for being in contact with a pier drum part of the first workpiece.
The clamping sleeve comprises two clamping blocks, each clamping block comprises a first clamping part and a second clamping part which are connected, the first clamping part and the second clamping part are both of circular arc structures, and the outer diameter of the first clamping part is smaller than that of the second clamping part; in the step S2, the end surface of the second clamping portion is in contact with the pier-drum portion of the first workpiece, and the inner diameter of the second clamping portion is smaller than the outer diameter of the pier-drum portion of the first workpiece.
The radian of the first clamping part and the second clamping part is 180 degrees, and the length of the first clamping part is greater than that of the second clamping part.
The diameter of the avoiding groove is smaller than the outer diameter of the second clamping part.
The pipe part assembling process can be suitable for assembling various pipe parts, and has the advantages of wide application range and high product qualification rate.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is an assembly view of a press fitting tool and a tubular part;
FIG. 2 is an exploded view of the press fitting tool;
FIG. 3 is a schematic view of the structure of a jacket;
labeled as: 1. a press machine; 2. a pressure lever; 3. a jacket; 4. a first workpiece; 5. a press-in part; 6. a pier drum part; 7. a protruding portion; 8. an avoidance groove; 9. a first clamping portion; 10. a second clamping portion.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
As shown in fig. 1 to 3, the invention provides a pipe part assembling process, which adopts a press-fitting tool and comprises the following steps:
s1, mounting the first workpiece 4 to be assembled on a press fitting tool, wherein the first workpiece 4 is a pipe part;
and S2, applying pressure to the press fitting tool by the press machine 1, and pressing the first workpiece 4 to be assembled into the mounting hole of the second workpiece by the press fitting tool.
Specifically, as shown in fig. 1 to 3, the press fitting tool includes a pressing rod 2 and a collet 3 that is fitted over the first workpiece 4 and that applies pressure to the first workpiece 4 in step S2, the pressing rod 2 has an escape groove 8 into which the first workpiece 4 and the collet 3 are inserted, and the collet 3 has a lower flange surface for contacting the pier nose 6 of the first workpiece 4.
As shown in fig. 1 and 2, the first workpiece 4 is a tubular member with two open ends and a hollow interior, the first workpiece 4 includes a press-in portion 5, a pier-drum portion 6 and an extension portion 7 which are connected in sequence, the press-in portion 5 is used for being inserted into a mounting hole on a second workpiece, the mounting hole is a round hole, the press-in portion 5 and the pier-drum portion 6 are both in a circular ring structure, the press-in portion 5 and the pier-drum portion 6 are coaxially and fixedly connected, the outer diameter of the press-in portion 5 is smaller than that of the pier-drum portion 6, the outer diameter of the pier-drum portion 6 is larger than that of the mounting hole on the second workpiece, the outer diameter of the extension portion 7 is also smaller than that of the pier-drum portion 6, the press-in portion 5 of the first workpiece 4 and the second workpiece are in interference fit, the length of the extension portion 7 is larger than that of the press-in portion 5. The lower flange face of the jacket 3 is a circular ring-shaped plane, and the lower flange face of the jacket 3 is in full contact with the pier bulge part 6, so that the stress is ensured to be uniform, and the problem of cracking of the pier bulge part 6 is avoided.
In the above step S2, the projecting portion 7 of the first workpiece 4 is inserted into the inner hole of the collet 3, the projecting portion 7 is inserted into the escape groove 8 of the pressing rod 2, the collet 3 is also positioned in the escape groove 8 of the pressing rod 2, the pier-drum portion 6 is positioned below the collet 3, the lower flange face of the collet 3 is in contact with the pier-drum portion 6, and the press-fitting portion 5 is positioned below the pier-drum portion 6. The pressing rod 2 is in a vertical state, the lower end face of the pressing rod 2 is a stress face which is in contact with the upper flange face of the clamping sleeve 3, the upper end face of the pressing rod 2 is a pressure face which is in contact with a press, the height of the upper flange face is larger than that of the lower flange face, the upper flange face and the stress face are annular planes, and the stress face, the upper flange face and the lower flange face are coaxial with the pressing rod 2. The press machine applies downward pressure to the press rod 2, the press rod 2 transmits the pressure to the jacket 3, the jacket 3 transmits the pressure to the first workpiece 4, and finally the first workpiece 4 is pressed downwards into the mounting hole of the second workpiece under the action of the press machine 1.
As shown in fig. 1 to 3, the jacket 3 includes two clamping blocks, each clamping block includes a first clamping portion 9 and a second clamping portion 10 connected to each other, each of the first clamping portion 9 and the second clamping portion 10 is of an arc structure, and an outer diameter of the first clamping portion 9 is smaller than an outer diameter of the second clamping portion 10. In step S2, the end face of the second clamping portion 10 is in contact with the pier drum portion 6 of the first workpiece 4, and the inner diameter of the second clamping portion 10 is smaller than the outer diameter of the pier drum portion 6 of the first workpiece 4. The inner diameters of the first clamping portion 9 and the second clamping portion 10 are the same, and the inner diameters of the first clamping portion 9 and the second clamping portion 10 are larger than the outer diameter of the portion, where the diameter of the protruding portion 7 of the first workpiece 4 is the largest.
As shown in fig. 1 to 3, the radian of the first clamping portion 9 and the second clamping portion 10 is 180 degrees, the length of the first clamping portion 9 is greater than the length of the second clamping portion 10, the second clamping portion 10 is fixedly connected with one end of the first clamping portion 9 in the length direction, the upper flange surface and the lower flange surface are end surfaces of two opposite ends of the second clamping portion 10 in the axial direction, the first clamping portion 9 and the second clamping portion 10 are coaxially arranged, and the first clamping portion 9 and the second clamping portion 10 are coaxial with the pressure rod 2. The two clamping blocks are spliced to form a clamping sleeve 3 and are symmetrically arranged.
As shown in fig. 1 to 3, the avoiding groove 8 is a circular groove formed in the center of the pressure rod 2, the avoiding groove 8 forms a circular opening on the bearing surface of the pressure rod 2 for the jacket 3 to pass through, the diameter of the avoiding groove 8 is smaller than the outer diameter of the second clamping portion 10, and the diameter of the avoiding groove 8 is the same as the outer diameter of the first clamping portion 9. The avoiding groove 8 is used for avoiding the bent pipe or the reducing part of the extension part 7, and can meet the assembly of the bent pipe and the variable-caliber pipe parts.
In the above step S1, the collet 3 is fitted over the first workpiece 4 to be assembled, and then the collet 3, together with the first workpiece 4 to be assembled, is inserted into the escape groove 8 of the pressing rod 2.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (4)
1. The assembly process of the pipe parts is characterized by comprising the following steps:
s1, mounting a first workpiece to be assembled on the press fitting tool, wherein the first workpiece is a pipe part;
s2, applying pressure to the press fitting tool by a press machine, and pressing the first workpiece to be assembled into the mounting hole of the second workpiece by the press fitting tool;
the press fitting tool comprises a press rod and a jacket, wherein the jacket is sleeved on the first workpiece and used for applying pressure to the first workpiece in the step S2, the press rod is provided with an avoiding groove for inserting the first workpiece and the jacket, and the jacket is provided with a lower flange surface used for being in contact with a pier drum part of the first workpiece.
2. The assembly process of the pipe part according to claim 1, wherein the jacket comprises two clamping blocks, each clamping block comprises a first clamping portion and a second clamping portion which are connected with each other, each first clamping portion and each second clamping portion are of an arc-shaped structure, and the outer diameter of each first clamping portion is smaller than that of each second clamping portion; in the step S2, the end surface of the second clamping portion is in contact with the pier-drum portion of the first workpiece, and the inner diameter of the second clamping portion is smaller than the outer diameter of the pier-drum portion of the first workpiece.
3. The process of assembling pipe parts according to claim 2, wherein the radian of the first clamping portion and the second clamping portion is 180 degrees, and the length of the first clamping portion is greater than that of the second clamping portion.
4. A process for assembling tubular parts according to claim 2 or 3, wherein the diameter of the avoiding groove is smaller than the outer diameter of the second clamping portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010420557.6A CN111604665A (en) | 2020-05-18 | 2020-05-18 | Pipe part assembling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010420557.6A CN111604665A (en) | 2020-05-18 | 2020-05-18 | Pipe part assembling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111604665A true CN111604665A (en) | 2020-09-01 |
Family
ID=72196868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010420557.6A Pending CN111604665A (en) | 2020-05-18 | 2020-05-18 | Pipe part assembling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111604665A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001150A (en) * | 2021-04-22 | 2021-06-22 | 安徽全柴动力股份有限公司 | Assembly system for formed steel pipe |
| CN119870960A (en) * | 2025-01-07 | 2025-04-25 | 重庆青山工业有限责任公司 | Hard pipe assembly tool of driving motor oil cooler water nozzle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4736506A (en) * | 1986-10-09 | 1988-04-12 | Tacki-Mac Grips, Inc. | Bat grip installation device |
| JPH06170744A (en) * | 1992-11-30 | 1994-06-21 | Mita Ind Co Ltd | Take out tool for insert metal fitting |
| CN103481236A (en) * | 2013-09-09 | 2014-01-01 | 安徽全柴动力股份有限公司 | Press fitting tool for thin-walled cylinder sleeve |
| CN203779438U (en) * | 2014-03-30 | 2014-08-20 | 荆州恒隆汽车零部件制造有限公司 | Specialassembly pressure head for torsion rod of power steering gear |
| CN109290767A (en) * | 2017-07-25 | 2019-02-01 | 辽宁浩宏医疗科技股份有限公司 | Inner and outer tube automatic socket connection device |
| CN111015176A (en) * | 2019-12-31 | 2020-04-17 | 宁波安纳杰模塑科技有限公司 | Press-fitting tool and press-fitting method for automobile buffer built-in part |
-
2020
- 2020-05-18 CN CN202010420557.6A patent/CN111604665A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4736506A (en) * | 1986-10-09 | 1988-04-12 | Tacki-Mac Grips, Inc. | Bat grip installation device |
| JPH06170744A (en) * | 1992-11-30 | 1994-06-21 | Mita Ind Co Ltd | Take out tool for insert metal fitting |
| CN103481236A (en) * | 2013-09-09 | 2014-01-01 | 安徽全柴动力股份有限公司 | Press fitting tool for thin-walled cylinder sleeve |
| CN203779438U (en) * | 2014-03-30 | 2014-08-20 | 荆州恒隆汽车零部件制造有限公司 | Specialassembly pressure head for torsion rod of power steering gear |
| CN109290767A (en) * | 2017-07-25 | 2019-02-01 | 辽宁浩宏医疗科技股份有限公司 | Inner and outer tube automatic socket connection device |
| CN111015176A (en) * | 2019-12-31 | 2020-04-17 | 宁波安纳杰模塑科技有限公司 | Press-fitting tool and press-fitting method for automobile buffer built-in part |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001150A (en) * | 2021-04-22 | 2021-06-22 | 安徽全柴动力股份有限公司 | Assembly system for formed steel pipe |
| CN119870960A (en) * | 2025-01-07 | 2025-04-25 | 重庆青山工业有限责任公司 | Hard pipe assembly tool of driving motor oil cooler water nozzle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200901 |