CN110976724A - Multi-head spiral flower cutter - Google Patents
Multi-head spiral flower cutter Download PDFInfo
- Publication number
- CN110976724A CN110976724A CN201911221916.9A CN201911221916A CN110976724A CN 110976724 A CN110976724 A CN 110976724A CN 201911221916 A CN201911221916 A CN 201911221916A CN 110976724 A CN110976724 A CN 110976724A
- Authority
- CN
- China
- Prior art keywords
- spiral
- cutter
- heat exchange
- knife edge
- head
- 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.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 6
- 230000001788 irregular Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 9
- 238000003754 machining Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a multi-head spiral knurling tool. The cutter comprises a cutter body and a plurality of spiral structures arranged on the cutter body; the starting points of a plurality of spiral structures are on the same circumference; the spiral structure is provided with a knife edge and a tool withdrawal groove; the knife edge and the tool withdrawal groove are both in a spiral structure and opposite in spiral rotation direction. The invention has the advantages of no damage to the surface of the heat exchange tube, no influence on the length of the heat exchange tube, simple operation and high processing efficiency when processing the tube body of the heat exchange tube.
Description
Technical Field
The invention relates to a multi-head spiral knurling tool.
Background
In the prior art, when the heat exchange pipe is subjected to thread or wave-spinning machining, the surface of the heat exchange pipe is easy to damage, and the length of the heat exchange pipe is influenced, so that the heat exchange effect and the service life of a machined workpiece pipe body are influenced; in the machining process, alignment operation is required to be carried out in each machining, the workpiece pipe body to be machined needs to move in the radial direction and rotate in a spinning mode, the process is complex, the structure is redundant, the occupied area is large, the machining efficiency is low, and the cost is high.
Therefore, there is a need to develop a tool for machining a heat exchange tube by spiral or wave rotation, which is simple in operation, high in machining efficiency, and free from damaging the surface of the heat exchange tube and influencing the length of the heat exchange tube.
Disclosure of Invention
The invention aims to provide a multi-head spiral knurling tool, which is a rolling tool, is provided with a spiral structure, has starting points on the same circumference, is provided with a tool edge and a tool withdrawal groove with opposite spiral directions, can be used for processing single-head or multi-head corrugated pipes or threaded pipes, does not damage the surface of a heat exchange pipe and does not influence the length of the heat exchange pipe when processing a pipe body of the heat exchange pipe, and has simple operation and high processing efficiency.
In order to achieve the purpose, the technical scheme of the invention is as follows: multi-head spiral flower knife, including the cutter body, its characterized in that: the cutter body is provided with a plurality of spiral structures; the starting points of a plurality of spiral structures are on the same circumference; the spiral structure is provided with a knife edge and a tool withdrawal groove; the knife edge and the tool withdrawal groove are both in a spiral structure and opposite in spiral rotation direction.
In the above technical solution, the spiral structure is provided on the outer periphery of the cutter body; the knife edges and the tool withdrawal grooves on the same spiral structure are arranged at intervals.
In the above technical scheme, the knife edge is a convex structure of the spiral structure, and the tool withdrawal groove is a concave structure of the spiral structure.
In the technical scheme, the middle part of the knife edge is used for bending, and the two ends of the knife edge are used for rolling.
In the above technical scheme, the spiral structure is a smooth arc structure; the helical structure is connected with the cutter body through a smooth arc transition structure.
In the above technical solution, the pitch of the helical structure is adjustable.
In the above technical solution, the width and/or height of the protrusions of the spiral structure are adjustable.
In the above technical solution, the spiral structure is a regular spiral and/or an irregular inner spiral.
In the above technical scheme, the cutter body is provided with a fixing structure.
In the above technical solution, the fixing structure is at least a pin slot or a fixing shaft.
The invention has the following advantages:
(1) the invention relates to a rolling cutter which is provided with a spiral structure, wherein the starting points of the spiral structure are on the same circumference, and the spiral structure is provided with a cutter edge and a tool withdrawal groove with opposite spiral directions and can be used for processing a single head (namely, one circumference of a heat exchange tube body is provided with the starting point of an elastic wave rotation structure, wherein the elastic wave rotation structure is a spring-shaped concave structure formed by rolling on a heat exchange tube) or a multi-head wave rotation tube (namely, one circumference of the heat exchange tube body is provided with the starting points of a plurality of wave rotation structures) or a single-head or multi-thread tube;
(2) the spiral structure is of a smooth arc line structure, and is connected with the cutter body through the smooth arc line transition structure, so that the processed heat exchange tube body is smooth and has no inner angle, the surface of the heat exchange tube is not damaged, the length of the heat exchange tube is not influenced, and the space is saved; when stress is generated, the heat exchange tube body processed by the method can generate elastic deformation due to smoothness and no inner angle, and the condition of explosion of the heat exchange tube caused by stress action can be effectively avoided;
(3) when the pipe body processing device is used for processing, the pipe body to be processed can perform radial motion and self-rotation motion, and can only perform self-rotation motion, so that the structure is exquisite, the occupied area is small, and the processing cost is saved;
(4) the invention can be designed into an automatic production line to realize industrialized mass production; the defects that the alignment operation is required to be carried out every time of processing and the working procedure is complicated in the traditional processing technology are overcome;
(5) the cutter body is provided with a fixing structure, and the rolling function of the cutter body can be realized by fixing the cutter body on a rotating structure through the fixing structure;
(6) the invention has strong applicability and can be suitable for processing the wave-rotating structure or the thread structure of the heating pipe bodies with different diameters;
(7) the knife edge and the tool withdrawal groove arranged in the heat exchange tube body can realize the bending operation of the heat exchange tube body while rolling the heat exchange tube body, and the tube body is processed into an elastic wave rotary structure or a thread structure, so that the surface of the heat exchange tube is not damaged, the length of the heat exchange tube is not influenced, the operation is simple, and the cost is saved.
Drawings
Fig. 1 is a schematic perspective view of the present invention, in which the spiral structures with the same size and the same fixed axis structure are located on the same circumference of the cutter body.
Fig. 2 is a schematic perspective view of the present invention, in which the spiral structures with the same size and the same fixing structure are pin grooves, which are located on the same circumference of the cutter body.
Fig. 3 is a schematic perspective view of the present invention, in which the spiral structures with different sizes are located on the same circumference of the cutter body at the starting points, and the fixing structure is a fixed shaft.
Fig. 4 is a developed view of a cutter body in which a cutter edge of a spiral structure is left-handed and a cutter withdrawal groove is right-handed in example 1 of the present invention.
Fig. 5 is a developed view of a cutter body in which a cutter edge of a spiral structure is right-handed and a tool withdrawal groove is left-handed in example 2 of the present invention.
Fig. 6 is a schematic view of a partial structure of a heat exchange tube processed by the method of the invention.
Fig. 7 is a schematic view of a partial structure of a heat exchange tube processed by the method of the invention.
Fig. 8 is an enlarged view of fig. 7 at a.
As can be seen from fig. 8, the spring-shaped concave structure formed by rolling the tube body of the heat exchange tube according to the invention is provided with a smooth arc line structure, and the wave rotation structure is connected with the tube body of the heat exchange tube through the smooth arc line transition structure.
In the figure, 1 part of the cutter body, 1.1 part of the fixing structure, 2 parts of the spiral structure, 2.1 parts of the cutter edge, 2.2 parts of the cutter withdrawal groove, 2.3 parts of the first cutter head, 2.4 parts of the second cutter head and 2.5 parts of the third cutter head.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
With reference to the accompanying drawings: the multi-head spiral flower cutter comprises a cutter body 1 and a plurality of spiral structures 2 arranged on the cutter body 1; the starting points of a plurality of the helical structures 2 are on the same circumference; a knife edge 2.1 and a tool withdrawal groove 2.2 are arranged on the spiral structure 2 on the knife body 1; the knife edge 2.1 and the tool withdrawal groove 2.2 are both in a spiral structure, and the spiral directions are opposite (as shown in fig. 4 and 5); the method can be used for processing a single-head (namely, a starting point of a wave rotation structure is arranged on one circumference of a heat exchange tube body, wherein the wave rotation structure is a spring-shaped concave structure formed by rolling the tube body of the heat exchange tube, the concave structure is arranged to be a smooth arc line structure, and the wave rotation structure is connected with the tube body of the heat exchange tube through a smooth arc line transition structure) or a multi-head wave rotation tube (namely, a plurality of starting points of the wave rotation structure are arranged on one circumference of the heat exchange tube body) or a single-head or multi-thread tube, and when the tube body of the heat exchange tube is processed, the surface of the heat exchange tube is not damaged, and the.
Further, the spiral structure 2 is arranged on the periphery of the cutter body 1; the rolling device is used for realizing the rolling function of the rolling device on the pipe body; the knife edge 2.1 and the tool withdrawal groove 2.2 on the same spiral structure 2 are arranged at intervals, and one knife edge 2.1 is arranged between the two tool withdrawal grooves 2.2 which are arranged at intervals (as shown in fig. 1, 2, 3, 4 and 5); the rolling function of the invention is ensured to be realized.
Further, the knife edge 2.1 is a convex structure of the spiral structure 2 and is used for rolling a workpiece; the tool withdrawal groove 2.2 is a concave structure of the spiral structure 2 and is used for withdrawing a tool; the invention adopts the structure that the knife edge is of a convex structure, the tool withdrawal groove is of a concave structure, and the spiral rotating directions of the knife edge and the tool withdrawal groove are opposite, so that the invention can ensure that the invention can process single-head and multi-head wave rotation or screw threads on workpieces, and the processed workpieces are smooth and have no inner angle.
Further, the middle part of the knife edge 2.1 is used for bending, and the two ends of the knife edge are used for rolling; the invention ensures that when the workpiece is processed, the workpiece is simultaneously bent and rolled, the surface of the workpiece is not damaged, and the length of the workpiece is not influenced.
Further, the spiral structure 2 is a smooth arc structure; the spiral structure 2 is connected with the cutter body 1 through a smooth arc transition structure; the processed heat exchange tube body is smooth and has no inner angle, the surface of the heat exchange tube is not damaged, the length of the heat exchange tube is not influenced, and the space is saved; when stress is generated, the heat exchange tube body processed by the invention can generate elastic deformation due to smoothness and no inner angle, and the condition of explosion and crack of the heat exchange tube caused by stress action can be effectively avoided.
Further, the pitch of the helical structure 2 is adjustable (as shown in fig. 1, 2 and 3); the pitch of the wave-rotating structure on the processed pipe body is adjustable, and the effect that the wave-rotating structure breaks a thermal boundary layer and improves the heat exchange efficiency is guaranteed.
Further, the protruding width and/or height of the spiral structure 2 is adjustable (as shown in fig. 1, 2, 3); the inward concave width and/or height of the wave-rotating structure on the processed pipe body can be adjusted, and the effect that the wave-rotating structure breaks a thermal boundary layer and improves the heat exchange efficiency is guaranteed.
Further: a plurality of said helical structures 2 are regular helices and/or are irregular helices; the processed wave structure on the pipe body is a regular internal spiral structure and/or an irregular internal spiral structure, so that the effect of breaking a thermal boundary layer and improving the heat exchange efficiency of the wave structure is realized;
a plurality of said helical structures 2 are regular helices, that is: the spiral structures 2 are equal in size and/or the spiral structures 2 arranged on the pipe body are formed by forward rotation and/or reverse rotation in a repeated mode (for example, five forward rotation spiral structures with the same size are arranged on the cutter body, and the starting points of the five spiral structures are on the same circumference of the cutter body);
a plurality of said helical structures 2 are irregular helices, that is: the spiral structures 2 are different in size and/or the spiral structures 2 arranged on the pipe body are formed in a forward-rotating and/or reverse-rotating mode in a non-repeated mode (for example, eight spiral structures are arranged on the cutter body, two of the spiral structures are forward-rotating structures, starting points of the spiral structures form a first multi-head spiral structure on the same circumference of the cutter body, two of the spiral structures are reverse-rotating structures, starting points of the spiral structures form a second multi-head spiral structure on the same circumference, four of the spiral structures are forward-rotating structures, starting points of the spiral structures form a third multi-head spiral structure on the same circumference, and the second multi-head spiral structure is located between the first multi-head spiral structure and the third multi-. Furthermore, a fixing structure 1.1 is arranged on the cutter body 1; the rolling function of the invention can be realized by fixing the cutter body on the rotary power structure through the fixing structure.
Furthermore, the fixing structure 1.1 is at least a pin slot or a fixing shaft (as shown in fig. 1, fig. 2 and fig. 3), and the rolling function of the present invention can be realized by fixing the cutter body on the rotary power structure through the pin slot or the fixing shaft.
The use method of the multi-head spiral flower knife comprises the following steps,
the multi-head spiral flower-knife is fixed on a rotating structure through a fixing structure, a pipe body to be processed is rotatably arranged below the multi-head spiral flower-knife, and the multi-head spiral flower-knife processes the rotating pipe body until a wave-spiral structure or a thread structure on the pipe body is processed (as shown in fig. 6 and 7).
The cutter body 1 of the multi-head spiral flower cutter is provided with a plurality of spiral structures 2 (for example, the cutter body 1 is provided with two spiral structures 2 or three spiral structures 2 or five spiral structures 2, or other numbers of spiral structures 2 according to actual requirements).
Example 1
The cutter body 1 of the multi-head spiral flower cutter is provided with three spiral structures 2; the three spiral structures 2 are respectively a first cutter head 2.3, a second cutter head 2.4 and a third cutter head 2.5; the first cutter head 2.3, the second cutter head 2.4 and the third cutter head 2.5 are wound on the periphery of the cutter body 1; the starting points of the first cutter head 2.3, the second cutter head 2.4 and the third cutter head 2.5 are on the same circumference of the cutter body 1;
the first cutter head 2.3, the second cutter head 2.4 and the third cutter head 2.5 are all provided with a cutter edge 2.1 and a cutter withdrawal groove 2.2, the cutter edge 2.1 and the cutter withdrawal groove 2.2 which are positioned on the same spiral structure 2 are all arranged at intervals, namely the cutter withdrawal groove 2.2 is arranged between the two cutter edges 2.1 which are arranged at intervals;
the knife edge 2.1 on the knife body 1 is left-handed, and the tool withdrawal groove 2.2 is right-handed (as shown in fig. 4).
Example 2
The same as example 1; the difference lies in that: in the present embodiment, the blade 2.1 of the cutter body 1 is right-handed, and the relief groove 2.2 is left-handed (as shown in fig. 5).
Other parts not described belong to the prior art.
Claims (10)
1. Multi-head spiral flower knife comprises a knife body (1), and is characterized in that: the cutter body (1) is provided with a plurality of spiral structures (2); the starting points of a plurality of the spiral structures (2) are on the same circumference; a knife edge (2.1) and a tool withdrawal groove (2.2) are arranged on the spiral structure (2); the knife edge (2.1) and the tool withdrawal groove (2.2) are both in a spiral structure, and the spiral directions are opposite.
2. The multi-start helical knurling tool of claim 1, wherein: the spiral structure (2) is arranged on the periphery of the cutter body (1); the knife edge (2.1) and the tool withdrawal groove (2.2) which are positioned on the same spiral structure (2) are arranged at intervals.
3. The multi-start helical spline cutter according to claim 1 or 2, wherein: the knife edge (2.1) is of a convex structure of the spiral structure (2), and the tool withdrawal groove (2.2) is of a concave structure of the spiral structure (2).
4. The multi-start helical spline cutter according to claim 3, wherein: the middle part of the knife edge (2.1) is used for bending, and the two ends of the knife edge are used for rolling.
5. The multi-start helical knurling tool of claim 4, wherein: the spiral structure (2) is in a smooth arc structure; the spiral structure (2) is connected with the cutter body (1) through a smooth arc transition structure.
6. The multi-start helical spline cutter according to claim 5, wherein: the screw pitch of the spiral structure (2) is adjustable.
7. The multi-start helical spline cutter according to claim 7, wherein: the protruding width and/or height of the helical structure (2) is adjustable.
8. The multi-start helical spline cutter according to claim 7, wherein: the spiral structure (2) is a regular spiral and/or an irregular inner spiral.
9. The multi-start helical knurling tool of claim 8, wherein: the cutter body (1) is provided with a fixing structure (1.1).
10. The multi-start helical spline cutter of claim 9, wherein: the fixing structure (1.1) is at least a pin groove or a fixing shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911221916.9A CN110976724A (en) | 2019-12-03 | 2019-12-03 | Multi-head spiral flower cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911221916.9A CN110976724A (en) | 2019-12-03 | 2019-12-03 | Multi-head spiral flower cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110976724A true CN110976724A (en) | 2020-04-10 |
Family
ID=70089833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911221916.9A Pending CN110976724A (en) | 2019-12-03 | 2019-12-03 | Multi-head spiral flower cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110976724A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185164Y (en) * | 1993-12-14 | 1994-12-14 | 汪思中 | Special rolling cutter for making new nail mould |
| CN1193722A (en) * | 1997-03-17 | 1998-09-23 | 运载器有限公司 | Heat transfer tube and method of manufacturing same |
| CN2436257Y (en) * | 2000-09-12 | 2001-06-27 | 孟继安 | Multi-thread spiral channel heat-exchanging pipe |
| CN106238635A (en) * | 2015-06-10 | 2016-12-21 | 上海泛华紧固系统有限公司 | Pipe external screw thread rolling and processing method, module and equipment and pipe external screw thread production line |
| CN211638162U (en) * | 2019-12-03 | 2020-10-09 | 鲁德祥 | Multi-head spiral flower cutter |
-
2019
- 2019-12-03 CN CN201911221916.9A patent/CN110976724A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185164Y (en) * | 1993-12-14 | 1994-12-14 | 汪思中 | Special rolling cutter for making new nail mould |
| CN1193722A (en) * | 1997-03-17 | 1998-09-23 | 运载器有限公司 | Heat transfer tube and method of manufacturing same |
| CN2436257Y (en) * | 2000-09-12 | 2001-06-27 | 孟继安 | Multi-thread spiral channel heat-exchanging pipe |
| CN106238635A (en) * | 2015-06-10 | 2016-12-21 | 上海泛华紧固系统有限公司 | Pipe external screw thread rolling and processing method, module and equipment and pipe external screw thread production line |
| CN211638162U (en) * | 2019-12-03 | 2020-10-09 | 鲁德祥 | Multi-head spiral flower cutter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1134051B1 (en) | Forming method of a thread forming tap | |
| US3789725A (en) | Self-drilling and self-tapping fastener and method of manufacture thereof | |
| CN201537734U (en) | forming cutter | |
| CA2744583C (en) | Apparatuses and methods for rolling angled threads | |
| TWI598169B (en) | Process to mold out an inner thread and combination of a basic body with a recess and a thread cutter | |
| CN1274413A (en) | Threaded connector for oil well pipe, thread cutting method and device | |
| US20130259585A1 (en) | Milling cutter | |
| CN211638162U (en) | Multi-head spiral flower cutter | |
| US20110200404A1 (en) | Spiral tap | |
| WO2024140253A1 (en) | Polygonal diamond beaded wire saw | |
| CN110976724A (en) | Multi-head spiral flower cutter | |
| CN108838417B (en) | Clamp for machining shaft sleeve parts | |
| JP2777100B2 (en) | Raised tap with internal finishing blade | |
| JP5031874B2 (en) | Rotary dresser | |
| CN217492940U (en) | Adjustable reamer | |
| CN105799075A (en) | Spiral-structure cutting steel wire and production device thereof | |
| JP4628858B2 (en) | Double tube manufacturing method and apparatus | |
| CN211490317U (en) | Double-step single-spiral screw tap for processing double threaded holes of retainer assembly | |
| KR100672864B1 (en) | Method of manufacturing a bolt and maching tool for being used in the method | |
| TWI722440B (en) | Forming screw tap | |
| CN112191957A (en) | Single-tooth single-tooth staggered-tooth thread milling cutter | |
| US11229966B2 (en) | Thread former having flaring ridges | |
| JP2006320993A (en) | Screw grinding wheel for spiral fluted tap, and dresser | |
| CN111531416A (en) | Machining method of taper pipe tap | |
| CN217421764U (en) | Restoration structure of fracture screw rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231116 Address after: 433226 No. 1 Zhonghua Road, Fuchang Town, Honghu City, Jingzhou City, Hubei Province Applicant after: Lu Ying Address before: 433226 No. 1 Zhonghua Road, Fuchang Town, Honghu City, Jingzhou City, Hubei Province Applicant before: Lu Dexiang Applicant before: Lu Ying |