CN109622687A - Method for forming pipe fitting for frame of motorcycle - Google Patents
Method for forming pipe fitting for frame of motorcycle Download PDFInfo
- Publication number
- CN109622687A CN109622687A CN201811640811.2A CN201811640811A CN109622687A CN 109622687 A CN109622687 A CN 109622687A CN 201811640811 A CN201811640811 A CN 201811640811A CN 109622687 A CN109622687 A CN 109622687A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- fixed ring
- frequency heating
- high frequency
- mold
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/86—Making other particular articles other parts for bicycles or motorcycles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
- B21D7/162—Heating equipment
Abstract
The present invention relates to motorcycle field, the method for forming pipe fitting for frame of motorcycle, including pipe fitting preparation process are specifically disclosed；Bending device preparation process, including machine table, power supply, several high frequency heating coils, several fixed rings and with the mold of flexure plane, the upper surface of machine table is equipped with the fan groove of the strip groove for holding pipe fitting and the rotation of the end for putting pipe fitting, the side of strip groove is connected to the side of fan groove straight flange, fixed ring coaxially slide is arranged in strip groove, high frequency heating coil is fixedly mounted in fixed ring, and high frequency heating coil is connected to power supply；Mold is fixedly mounted in fan groove, and the flexure plane of mold is opposite with fixed ring；Pipe fitting installation steps；Pipe heating step；Pipe fitting bends step and the cooling demounting procedure of pipe fitting.This programme can bend pipe fitting, while reduce the resilience after pipe fitting bending.
Description
Technical field
The invention belongs to motorcycle fields, and in particular to the method for forming pipe fitting for frame of motorcycle.
Background technique
The vehicle frame of motorcycle is the profile of whole trolley, can be integrated into engine, gearbox, storage battery, damper, seat etc.
Together.In addition to this, inertia effects when vehicle frame still suffers from the weight of operator, acceleration and deceleration, and it is excessively curved when the shape that generates
Become etc..It is that vehicle frame can be divided into plate frame and tubular type vehicle frame by pipe fitting or sheet metal component according to constitute vehicle frame.Wherein tubular type
Vehicle frame is formed by connecting by modes such as several pipe fitting weldings, threaded connections, and the mounting means of each pipe fitting is relatively simple, and is managed
The processing technology of part is mature, is a kind of vehicle frame type common in the market.
Wherein when processing to the pipe fitting in tubular type vehicle frame, it is related to the operation such as cutting, bending, japanning of pipe fitting.
Wherein the part of bending is the difficult point of pipe fitting processing, and conventional bending process generally under room temperature adjusting, is bent using pipe fitting and filled
It sets and pipe fitting is bent, take out bending tube although can facilitate, improve working efficiency, in the bending process of pipe fitting,
There are stress for pipe fitting itself, and rebound is generated under the action of being easy after pipe fitting is removed in stress, be easy to cause the folding of pipe fitting in this way
Curved size is wrong.
Summary of the invention
It is a kind of after pipe fitting bending the invention is intended to provide, reduce the formation of tubes side of the rebound deformation of pipe fitting bending place
Method.
In order to achieve the above object, base case of the invention is as follows: for the method for forming pipe fitting of frame of motorcycle, packet
Include following procedure of processing:
Step 1: preparing several pipe fittings to be bent；
Step 2: prepare a kind of bending device, including machine table, power supply, several high frequency heating coils, several fixed rings with
And the mold with flexure plane, the upper surface of machine table are equipped with the strip groove for holding pipe fitting and supply to put the end rotation of pipe fitting
The side of fan groove, strip groove is connected to the side of fan groove straight flange, and fixed ring coaxially slide is arranged in strip groove, and high frequency adds
Heat coil is fixedly mounted in fixed ring, and high frequency heating coil is connected to power supply；Mold is fixedly mounted in fan groove, and mould
The flexure plane of tool is opposite with fixed ring；
Step 3: the pipe fitting in step 1 being inserted into strip groove, pipe fitting sequentially passes through several fixed rings, and pipe fitting is outer
Wall is contacted with the inner ring of fixed ring；
Step 4: opening power supply, high frequency heating coil heats the pipe fitting in fixed ring, wait be located in fixed ring
When the steady temperature that pipe fitting temperature is 800-1000 DEG C, 10-20S is kept the temperature；
Step 5: clamping pipe fitting bends pipe fitting at the heating of pipe fitting, pipe fitting is close close to one end of fan groove
To a Slideslip of mold, fixed ring is bonded with the flexure plane of mold for one end of fan groove；
Step 6: after flexure plane of all fixed rings with mold, closing power supply, pipe fitting is air-cooled；It is cooled to pipe fitting
When room temperature, the pipe fitting in fixed ring is taken out.
The principle and its advantage of base case: 1, all fixed ring coaxially slides are arranged in strip groove, in step 3 will
When pipe fitting is placed into strip groove, pipe fitting is needed across fixed ring, and fixed ring and strip groove can adequately limit pipe fitting；
Due to being equipped with high frequency heating coil in the fixed ring in step 2, opening power supply high frequency heating coil in step 4 can be right
Pipe fitting in fixed ring carries out high-frequency heating, convenient for bending in steps of 5 to pipe fitting；High frequency heating coil is in fixation simultaneously
It is kept constant at a distance from the circumferential surface of pipe fitting under the limitation of ring, the circumferential surface of pipe fitting is allowed to be heated properly.
2, it is in step 3,800-1000 DEG C by pipe heating to temperature, and keeps the temperature 10-20S；Its object is to allow pipe
Part is adequately and uniformly heated to bending place, is more easy convenient for the bending deformation of the pipe fitting allowed in step 5；And it is bending
During, pipe fitting can slide into from the mold in fan groove from accessible in strip groove.
3, in step 6 when reading pipe fitting carries out air-cooled, the bending place of pipe fitting is also limited by the flexure plane of mold and fixed ring
Position, flexure plane and fixed ring can effectively reduce the elastic deformation in pipe fitting cooling procedure.
In conclusion having used bending device in this forming method, and contain fixed ring, high-frequency heating line in bending device
Circle and mold, can heat pipe fitting during bending to pipe fitting, the bending of pipe fitting is allowed to be more easier；It is solid simultaneously
The pipe fitting after bending can be limited by determining ring and mold, and hair is rebound deformation when effectively reducing pipe fitting cooling.
Further, in step 4, when the pipe fitting temperature in fixed ring is 900 DEG C of steady temperature, 15S is kept the temperature.
When the heating temperature of pipe fitting reaches higher temperature, the duration of heat preservation can be reduced suitably, it can be ensured that pipe fitting tool
There is stronger toughness while having pliable characteristic.
It further, further include bending mechanism in step 2, bending mechanism includes the gripping block and band for clamping pipe fitting end
The bottom surface of the walking unit that dynamic gripping block is slided in strip groove or fan groove, the bottom surface or fan groove of gripping block and strip groove is sliding
Dynamic contact.
Gripping block is slided in strip groove or fan groove, and gripping block can be clamped the end of pipe fitting, and gripping block exists
After the end of pipe fitting is clamped, walking unit is able to drive gripping block and slides in strip groove or fan groove, to pipe fitting
Apply torsion to bending place, pipe fitting is allowed smoothly to be bent.
Further, annular chamber is equipped in gripping block, the bottom of annular chamber is equipped with convex block, card hole, detent is arranged in convex block
Hole is opposite with the side wall of annular chamber；It is equipped in card hole and is slidably fitted with voussoir, spring, one end of spring are installed in card hole
It is fixedly connected with voussoir, the other end of spring is fixedly connected with the inner wall of detent block, and the wedge surface of voussoir is opposite with fixed ring.
When the end of pipe fitting is inserted into gripping block, the end face of pipe fitting and the wedge surface of voussoir offset, by voussoir squeeze to
In detent block, the elastic force of spring contraction, spring is applied on voussoir, and the inner wall of voussoir and pipe fitting sufficiently offsets, and is realized to pipe fitting
The fixation and limit of end.
Further, in step 2, the both ends of high frequency heating coil are pierced by from fixed ring to be added with the high frequency in adjacent fixed ring
Heat coil connection is connected close to the free end of the high frequency heating coil of strip groove one end and the anode of power supply, another close to strip groove
The free end of the high frequency heating coil of one end and the cathode of power supply connect.
High frequency heating coil connection in fixed ring two neighboring simultaneously, allows all fixed rings to connect into an entirety,
When gripping block drives the end of pipe fitting to rotate around bending place, pipe fitting is able to drive synchronous with high frequency heating coil turn of fixed ring
It is dynamic；Fixed ring is contacted with the outer wall of mold, and the spacing between fixed ring and fixed ring under high frequency heating coil connection keeps phase
To constant, make the bending of pipe fitting unaffected.
Detailed description of the invention
Fig. 1 is flow process chart of the present invention for the method for forming pipe fitting of frame of motorcycle；
Fig. 2 is the cross-sectional view of bending device main view direction in the embodiment of the present invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the enlarged drawing of gripping block in Fig. 2.
Specific embodiment
Below by the further details of explanation of specific embodiment:
Appended drawing reference in Figure of description includes: machine table 10, strip groove 101, mounting portion 111, bending part 121, turns
Dynamic portion 131, sliding groove 103, exit groove 104, mold 20, flexure plane 201, gripping block 30, leading truck 301, is led at fan groove 102
Rail 302, annular chamber 304, convex block 305, card hole 306, voussoir 307, spring 308, high frequency heating coil 401, is consolidated idler wheel 303
Determine ring 402, pressure spring 403, tension spring 404, pipe fitting 50.
The operating process of the method for forming pipe fitting for frame of motorcycle in embodiment is substantially as shown in Fig. 1, tool
The step of body, is as follows:
Step 1: preparing several pipe fittings 50 to be bent.
Step 2: preparing a kind of substantially such as attached drawing 2, attached drawing 3 and attached bending device shown in Fig. 4, including machine table 10, mould
Tool 20, bending mechanism and heating mechanism；The upper surface of machine table 10 is equipped with the strip groove 101 for holding pipe fitting 50 and for putting pipe fitting
The fan groove 102 of 50 end rotation, the bottom surface of strip groove 101 is the cambered surface being bonded with 50 side of pipe fitting；As shown in Figures 2 and 3,
Strip groove 101 includes mounting portion 111, bending part 121 and the rotation section 131 set gradually from left to right.
As shown in figure 3, mold 20 is rectangular-shape, the lower right side of mold 20 is in the flexure plane 201 of bending pipe fitting 50, bending
The upside of portion 121 and rotation section 131 is connected to the downside straight flange of fan groove 102, and the bottom of fan groove 102 and strip groove 101
Bottom is coplanar, and mold 20 is welded in the fan groove 102 of machine table 10, and the downside of 20 flexure plane 201 of mold and bending part 121
Relatively.
As shown in Fig. 2, bending mechanism includes gripping block 30 and walking unit, walking unit includes leading truck 301 and drives
The mobile guide rail 302 of gripping block 30,301 level of leading truck are fixedly mounted on the top of machine table 10, and guide rail 302 and leading truck
301 lower surface welding；The bottom of fan groove 102 is equipped with the sliding groove 103 of arc, the track of sliding groove 103 and gripping block 30
Motion track is consistent.
As shown in figure 3, heating mechanism includes power supply, six high frequency heating coils 401 and six fixed rings 402, fixed ring
402 coaxially slides are arranged in bending part 121, and high frequency heating coil 401 is fixedly mounted in fixed ring 402, and high-frequency heating
The both ends of coil 401 are pierced by from fixed ring 402 and connect with the high frequency heating coil 401 in adjacent fixed ring 402, and the leftmost side is high
The free end of frequency heating coil 401 and the anode of power supply connect, the free end of rightmost side high frequency heating coil 401 and bearing for power supply
Pole connection；Pressure spring 403 is fixedly installed between two neighboring fixed ring 402, the upside of fixed ring 402 is arranged in pressure spring 403；Phase
Be fixedly installed with tension spring 404 between adjacent two fixed rings 402, tension spring 404 is arranged in the downside of fixed ring 402, and tension spring 404 with
Pressure spring 403 is opposite and is located in same level.
As shown in figure 4, the lower rotation of gripping block 30 is provided with idler wheel 303, axis and the fixed ring 402 of idler wheel 303
Axis is parallel, the bottom surface sliding contact of the idler wheel 303 and sliding groove 103 of 30 bottom of gripping block；As shown in figure 3, sliding groove 103
Left end is equipped with the exit groove 104 exited for gripping block 30.
As shown in figure 4, be equipped with annular chamber 304 in gripping block 30, the bottom of annular chamber 304 be equipped with 30 one of gripping block at
The convex block 305 of type, there are two card hole 306, the side wall phases of card hole 306 and annular chamber 304 for setting on the side wall of convex block 305
It is right；Be equipped in card hole 306 and be slidably fitted with voussoir 307, spring 308 is installed in card hole 306, one end of spring 308 with
Voussoir 307 is fixedly connected, and the other end of spring 308 is fixedly connected with the inner wall of detent block, and the wedge surface and fixed ring of voussoir 307
402 is opposite.
In addition, the upper surface of mold 20 is higher than the top of fixed ring 402.
Step 3: being inserted into the pipe fitting 50 in step 1 is horizontal from left to right in strip groove 101, the bottom of strip groove 101
Face is bonded with the side of pipe fitting 50, and the bending place of pipe fitting 50 is located at fixed ring 402, and the outer wall of pipe fitting 50 and fixed ring 402
Inner wall contact；The right end of pipe fitting 50 is horizontally inserted into annular chamber 304 as shown in Figure 3, during pipe fitting 50 is inserted into, pipe
The end face of part 50 and the wedge surface of voussoir 307 offset, and voussoir 307 is squeezed into detent block, and spring 308 is shunk, the bullet of spring 308
Power is applied on voussoir 307, and voussoir 307 and the inner wall of pipe fitting 50 sufficiently offset, and realizes fixation and limit to 50 right end of pipe fitting.
Step 4: opening power supply, electric current flowing in high frequency heating coil 401, since high frequency heating coil 401 is set in coil
It sets in fixed ring 402, high frequency heating coil 401 can carry out high-frequency heating to the pipe fitting 50 of the installation in fixed ring 402, allow pipe
The bending place of part 50 is rapidly achieved 900 DEG C, when temperature reaches 900 DEG C, keeps the temperature 10-20S to pipe fitting 50.
Step 5: starting guide rail 302, guide rail 302 drive gripping block 30 to slide along sliding groove 103, and idler wheel 303 is in sliding groove
It is slided in 103, gripping block 30 drives the right end of pipe fitting 50 to rotate along the synchronous bending place around pipe fitting 50 of sliding groove 103 at this time；
During the right end rotation of pipe fitting 50, the bending part 121 of pipe fitting 50 is bonded to the flexure plane 201 of mold 20；402 He of fixed ring
The right end of pipe fitting 50 slides in fan groove 102, while the pressure spring 403 of 402 upside of fixed ring as shown in Figure 3 is compressed, Gu
The tension spring 404 for determining 402 downside of ring is stretched, and the high frequency heating coil 401 in fixed ring 402 persistently adds pipe fitting 50
Heat, pipe fitting 50 are extruded close to the side of pressure spring 403, and pipe fitting 50 is stretched close to the side of tension spring 404, are realized to pipe fitting 50
Bending, the circumferential surface of the inner wall and pipe fitting 50 of fixed ring 402 offsets when bending, allows 50 uniform in shaping of pipe fitting.
Step 6: after all fixed rings 402 and after the flexure plane of mold 20, closing power supply, sky is carried out to pipe fitting 50
It is cold；After pipe fitting 50 is cooled to room temperature, guide rail 302 acts on gripping block 30 to the movement of the top of exit groove 104, to the upper of pipe fitting 50
End absent-mindedness, then extraction is located at the pipe fitting 50 in fixed ring 402 and strip groove 101.
Claims (5)
1. being used for the method for forming pipe fitting of frame of motorcycle, which is characterized in that including following procedure of processing:
Step 1: preparing several pipe fittings to be bent；
Step 2: preparing a kind of bending device, including machine table, power supply, several high frequency heating coils, several fixed rings and tool
There is the mold of flexure plane, the upper surface of machine table is equipped with the sector of the strip groove for holding pipe fitting and the rotation of the end for putting pipe fitting
The side of slot, strip groove is connected to the side of fan groove straight flange, and fixed ring coaxially slide is arranged in strip groove, high-frequency heating line
Circle is fixedly mounted in fixed ring, and high frequency heating coil is connected to power supply；Mold is fixedly mounted in fan groove, and mold
Flexure plane is opposite with fixed ring；
Step 3: the pipe fitting in step 1 is inserted into strip groove, pipe fitting sequentially passes through several fixed rings, and the outer wall of pipe fitting with
The inner ring of fixed ring contacts；
Step 4: opening power supply, high frequency heating coil heats the pipe fitting in fixed ring, the pipe fitting wait be located in fixed ring
When the steady temperature that temperature is 800-1000 DEG C, 10-20S is kept the temperature；
Step 5: clamping pipe fitting bends pipe fitting at the heating of pipe fitting close to one end of fan groove, and pipe fitting is close to fan-shaped
To a Slideslip of mold, fixed ring is bonded with the flexure plane of mold for one end of slot；
Step 6: after flexure plane of all fixed rings with mold, closing power supply, pipe fitting is air-cooled；It is cooled to room temperature to pipe fitting
When, take out the pipe fitting in fixed ring.
2. the method for forming pipe fitting according to claim 1 for frame of motorcycle, which is characterized in that in the step 4,
When the steady temperature that the pipe fitting temperature wait be located in fixed ring is 900 DEG C, 15S is kept the temperature.
3. the method for forming pipe fitting according to claim 2 for frame of motorcycle, which is characterized in that in the step 2,
It further include bending mechanism, the bending mechanism includes clamping the gripping block of pipe fitting end and driving gripping block in strip groove or fan
The walking unit slided in shape slot, the bottom surface sliding contact of the bottom surface or fan groove of the gripping block and strip groove.
4. the method for forming pipe fitting according to claim 3 for frame of motorcycle, which is characterized in that in the gripping block
Equipped with annular chamber, the bottom of annular chamber is equipped with convex block, card hole is arranged in convex block, card hole is opposite with the side wall of annular chamber；Institute
It states to be equipped in card hole and is slidably fitted with voussoir, spring is installed, one end of spring is fixedly connected with voussoir, spring in card hole
The other end be fixedly connected with the inner wall of detent block, the wedge surface of the voussoir is opposite with fixed ring.
5. the method for forming pipe fitting according to claim 4 for frame of motorcycle, which is characterized in that in the step 2,
The both ends of high frequency heating coil are pierced by from fixed ring and connect with the high frequency heating coil in adjacent fixed ring, close to strip groove one
The free end of the high frequency heating coil at end and the anode of power supply connect, close to the freedom of the high frequency heating coil of the strip groove other end
End is connect with the cathode of power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811640811.2A CN109622687B (en) | 2018-12-29 | 2018-12-29 | Pipe fitting forming method for motorcycle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811640811.2A CN109622687B (en) | 2018-12-29 | 2018-12-29 | Pipe fitting forming method for motorcycle frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109622687A true CN109622687A (en) | 2019-04-16 |
| CN109622687B CN109622687B (en) | 2020-05-12 |
Family
ID=66054711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811640811.2A Active CN109622687B (en) | 2018-12-29 | 2018-12-29 | Pipe fitting forming method for motorcycle frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109622687B (en) |
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| CN102500664A (en) * | 2011-11-23 | 2012-06-20 | 大连百合氧枪喷头有限公司 | Arc curving machine for water jacket pipe of crystallizer of continuous casting machine in metallurgical industry |
| CN102847764A (en) * | 2011-06-28 | 2013-01-02 | 第一高周波工业株式会社 | Bending processing device for metal tube |
| CN102962361A (en) * | 2012-12-14 | 2013-03-13 | 西北有色金属研究院 | Detachable electromagnetic induction heater for diameter-expanded bend-pushed large-diameter elbow |
| CN203426220U (en) * | 2013-05-22 | 2014-02-12 | 洛阳理工学院 | Manual type pipe hot-bending device |
| CN104259272A (en) * | 2014-08-11 | 2015-01-07 | 西北工业大学 | Induction heating stretch-bending forming device for aircraft sectional materials |
| JP2016043375A (en) * | 2014-08-21 | 2016-04-04 | 第一高周波工業株式会社 | Method for manufacturing bent metal tube, bending device for metal tube and coil |
| RU169825U1 (en) * | 2016-06-30 | 2017-04-03 | Федеральное Государственное Унитарное Предприятие "Научно-Производственное Объединение "Техномаш" | BENDING MACHINE |
| CN108607910A (en) * | 2018-06-26 | 2018-10-02 | 郑州匹客科技有限公司 | A kind of anti-fold stainless steel elbow machine |
-
2018
- 2018-12-29 CN CN201811640811.2A patent/CN109622687B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847764A (en) * | 2011-06-28 | 2013-01-02 | 第一高周波工业株式会社 | Bending processing device for metal tube |
| CN102500664A (en) * | 2011-11-23 | 2012-06-20 | 大连百合氧枪喷头有限公司 | Arc curving machine for water jacket pipe of crystallizer of continuous casting machine in metallurgical industry |
| CN102962361A (en) * | 2012-12-14 | 2013-03-13 | 西北有色金属研究院 | Detachable electromagnetic induction heater for diameter-expanded bend-pushed large-diameter elbow |
| CN203426220U (en) * | 2013-05-22 | 2014-02-12 | 洛阳理工学院 | Manual type pipe hot-bending device |
| CN104259272A (en) * | 2014-08-11 | 2015-01-07 | 西北工业大学 | Induction heating stretch-bending forming device for aircraft sectional materials |
| JP2016043375A (en) * | 2014-08-21 | 2016-04-04 | 第一高周波工業株式会社 | Method for manufacturing bent metal tube, bending device for metal tube and coil |
| RU169825U1 (en) * | 2016-06-30 | 2017-04-03 | Федеральное Государственное Унитарное Предприятие "Научно-Производственное Объединение "Техномаш" | BENDING MACHINE |
| CN108607910A (en) * | 2018-06-26 | 2018-10-02 | 郑州匹客科技有限公司 | A kind of anti-fold stainless steel elbow machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109622687B (en) | 2020-05-12 |
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