CN116984770A - Composite connection method for automobile clutch outer shell assembly - Google Patents
Composite connection method for automobile clutch outer shell assembly Download PDFInfo
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- CN116984770A CN116984770A CN202311026465.XA CN202311026465A CN116984770A CN 116984770 A CN116984770 A CN 116984770A CN 202311026465 A CN202311026465 A CN 202311026465A CN 116984770 A CN116984770 A CN 116984770A
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- outer shell
- spline hub
- clutch
- pressing device
- clamping
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 51
- 238000005728 strengthening Methods 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 36
- 230000006698 induction Effects 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012958 reprocessing Methods 0.000 abstract description 2
- 238000005121 nitriding Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- 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
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2221/00—Treating localised areas of an article
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a composite connection method of an automobile clutch outer shell assembly, which adopts a laser surface strengthening technology to carry out surface strengthening operation on a spline hub and an outer shell, so that on one hand, the part strength of the spline hub and the outer shell can be effectively improved, the installation and the use of the automobile clutch outer shell assembly are facilitated, on the other hand, the deformation of the spline hub and the outer shell caused by the laser surface strengthening operation is small, the reprocessing operation on the spline hub and the outer shell can be reduced, thereby improving the connection precision, reducing the connection difficulty and having good use effect; according to the invention, through preheating operation on the outer shell and then connecting operation on the spline hub and the outer shell, interference mounting operation can be realized, and combined welding operation is combined, so that composite mounting operation between the spline hub and the outer shell is realized, and the connection precision and the firmness of the automobile clutch outer shell assembly are improved.
Description
Technical Field
The invention relates to the technical field of automobile clutches, in particular to a composite connection method of an automobile clutch outer shell assembly.
Background
The automobile clutch is positioned in a flywheel shell between an engine and a gearbox, the clutch assembly is fixed on the rear plane of the flywheel by using screws, and an output shaft of the clutch is an input shaft of the gearbox. During operation of the vehicle, the driver may depress or release the clutch pedal as desired to temporarily disengage and progressively engage the engine with the transmission to cut off or transfer power input from the engine to the transmission.
In general, the clutch outer housing assembly is often designed into a form of assembling and welding two parts of a spline hub and an outer housing, and the connection operation of the spline hub and the outer housing of the clutch outer housing assembly of the automobile is realized through welding. The composite connection method of the automobile clutch outer shell assembly according to the Chinese invention CN202110488202.5 in the prior art is characterized in that machining allowance is reserved in a to-be-welded area of a spline hub (1), and after surface nitriding treatment is finished, a nitriding layer of a welding line area of the spline hub is removed before welding; pressing the spline hub (1) and the outer shell (2) together along the axial direction to form a clutch outer shell assembly (3); clamping the clutch outer housing assembly (3) on a three-jaw chuck (6) of a numerical control rotary worktable (5); arranging a circular induction heater (7) so that a welding joint surface (4) of the clutch outer housing assembly (3) is within the heating range of the circular induction heater (7); moving the laser welding head (9) to a non-annular closed region (10) of the annular induction heater (7); starting a laser to weld the welding joint surface (4), and forming an annular closed welding seam along with the rotation of the numerical control rotary worktable (6); the spline hub (1) and the outer shell (2) are made of medium carbon steel. The nitriding layer of the spline hub weld zone is removed before welding, so that the generation of subsequent penetrability air holes or continuous air holes is avoided; and then, by combining the traditional single laser welding process with an induction heating technology, the welding difficulty coefficient of a product structure and double-side base materials is effectively reduced, the generation of welded cracks is eliminated, and compared with the traditional welding process, the method has the advantages of high welding speed, small deformation, easiness in realization of automation and the like, and can meet the production requirements of serialization and broad generalization of the automobile clutch outer shell assembly.
However, the above-mentioned connection method of the automobile clutch has a great disadvantage in the actual operation process. Firstly, the connection method adopts a nitriding surface strengthening mode for the spline hub and the outer shell before use, and as is well known, a nitriding permeation layer is shallower, generally only the requirements of wear resistance and fatigue resistance for bearing light and medium loads can be met, the connection method cannot be well adapted to the use of the clutch outer shell, and the connection position between the spline hub and the outer shell needs to be processed after nitriding treatment, at the moment, the connection precision between the spline hub and the outer shell is further reduced, and the connection of the clutch outer shell assembly is not facilitated; secondly, the three-jaw chuck is adopted to control the welding position during welding in the operation mode of rotary welding of the clutch outer housing assembly, on one hand, an extremely high precision control device is needed, the processing difficulty is high, and on the other hand, in the process of rotary welding processing, if the situation of asynchronous compaction and rotation occurs, dislocation between the spline hub and the outer housing is caused under the action of external torsion, the connection precision of the automobile clutch outer housing assembly is further reduced, and the connection of the automobile clutch assembly is not facilitated.
Based on the reasons, the invention provides a composite connection method for an automobile clutch outer housing assembly, which solves the defects in the prior art.
Disclosure of Invention
The invention solves the technical problems of high operation difficulty and unfavorable connection operation of an automobile clutch outer housing assembly in the prior art, and provides a composite connection method of the automobile clutch outer housing assembly. The composite connection method for the automobile clutch outer shell assembly has the characteristics of effectively reducing connection and installation difficulty, being high in connection and installation precision and the like.
In order to achieve the above purpose, the present invention provides the following technical solutions: a composite connection method of an automobile clutch outer housing assembly comprises the following steps:
s1: processing a spline hub and an outer shell which meet the size precision of the clutch outer shell assembly for standby;
s2: performing laser surface strengthening treatment operation on the spline hub and the outer shell so as to improve the surface strength of the clutch outer shell assembly;
s3: positioning and fixing the spline hub and the outer shell respectively, positioning and fixing the spline hub on a special pressing device, and fixing and clamping the outer shell on a special clamp;
s4: carrying out local heating treatment on the outer shell, wherein the heating position is the connection position of the outer shell and the spline hub, so that the outer shell expands to a certain extent;
s5: pushing the spline hub through a special pressing device, so that the spline hub is inserted into the outer shell, the outer shell is cooled, and the spline hub and the outer shell are connected by utilizing the principle of thermal expansion and contraction of the outer shell;
s6: processing the connection gap between the spline hub and the outer shell;
s7: in a state that the spline hub and the outer shell are fixed, a welding machine is used for welding the spline hub and the outer shell, so that a complete annular closed welding line is formed between the spline hub and the outer shell;
s8: and (5) releasing the fixation of the clutch outer housing assembly and completing the connection operation of the clutch outer housing assembly.
Preferably, the temperature of the laser beam is controlled at 780 ℃ in the laser surface strengthening treatment operation process in the step 2, and the laser beam of the laser surface strengthening treatment is protected by inert gas.
Preferably, the positioning and fixing operation for the spline hub and the outer shell in the step 3 includes the following steps:
s31: selecting a special pressing device and a special clamp which meet the specifications of the spline hub and the outer shell, arranging the special pressing device and the special clamp in positions so that the special pressing device is positioned at the upper side of the special clamp, and performing concentric alignment operation on the special pressing device and the special clamp;
s32: positioning and adjusting operation, namely selecting three fixed points according to the characteristics of the outer side wall of the spline hub and the outer shell, measuring the position data of the three fixed points, and obtaining clamping fixed points of the spline hub and the outer shell;
s33: setting clamping mechanisms according to clamping fixed points on the special pressing device and the special clamp respectively according to the measured data;
s34: the clamping mechanism on the special pressing device is aligned with the clamping fixed point on the spline hub, so that the positioning and clamping operation of the special pressing device on the spline hub is realized, and the clamping mechanism on the special clamp is aligned with the clamping fixed point on the outer shell, so that the positioning and clamping operation of the special clamp on the outer shell is realized.
Preferably, the clamping fixing points in the step 32 are set according to the clamping requirements of the spline hub and the outer shell, and the number of the clamping fixing points is greater than or equal to three.
Preferably, in the step 4, local heating operation is performed on the connection position of the outer shell by using an induction heater, the induction heater needs to be uniformly distributed along the connection position of the outer shell, and the temperature of the induction heater is controlled at 850 ℃.
Preferably, in the step 5, when the spline hub is pushed by the special pressing device, after the upper surface of the joint of the spline hub coincides with the upper surface of the joint of the outer casing, the special pressing device stops moving and keeps locked.
Preferably, in the step 5, a natural cooling mode is adopted to realize the cooling operation at the connection position of the outer shell.
Preferably, the step 6 for processing the connecting gap between the spline hub and the outer shell comprises discharging impurities in the connecting gap, polishing the unevenly deformed metal and measuring the size of the gap.
Preferably, in the step 7, the connection of the clutch outer housing assembly is realized by adopting a laser welding mode, the output power range of the laser is 3kW-10kW, the welding speed is 1.0m/min-12.0m/min, the flow of the shielding gas is 10L/min-35L/min, and in the laser welding process, the shielding gas is blown to a welding pool by adopting a coaxial shielding blowing mode, so that the depth of a welding seam formed at the welding joint surface is ensured to meet the design requirement.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the laser surface strengthening technology is adopted to carry out surface strengthening operation on the spline hub and the outer shell, so that on one hand, the part strength of the spline hub and the outer shell can be effectively improved, the installation and the use of the automobile clutch outer shell assembly are facilitated, on the other hand, the deformation of the spline hub and the outer shell caused by the laser surface strengthening operation is small, the reprocessing operation on the spline hub and the outer shell can be reduced, and therefore, the connection precision is improved, the connection difficulty is reduced, and the use effect is good;
2. according to the invention, the preheating operation is carried out on the outer shell, then the connection operation is carried out on the spline hub and the outer shell, so that the compaction mounting operation can be realized, the composite mounting operation between the spline hub and the outer shell is realized by combining the welding operation, and the connection precision and the firmness of the automobile clutch outer shell assembly are improved;
3. according to the clutch outer shell assembly, the spline hub and the outer shell are clamped and fixed by the special tool at multiple points, and the connection operation is realized by the multiple point fixing, so that the connection precision of the spline hub and the outer shell can be effectively improved, the positions of the spline hub and the outer shell are fixed during welding, the dislocation situation between the spline hub and the outer shell caused by uneven rotation can be effectively avoided, and the connection precision of the clutch outer shell assembly is further improved.
Drawings
FIG. 1 is a flow chart of a method of composite connection of an automotive clutch outer housing assembly according to the present invention;
FIG. 2 is a flow chart of the splined hub and outer housing positioning and securing operation of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the present invention provides a technical solution: the composite connection method of the automobile clutch outer housing assembly comprises the following steps of:
s1: processing a spline hub and an outer shell which meet the size precision of the clutch outer shell assembly for standby;
s2: performing laser surface strengthening treatment operation on the spline hub and the outer shell so as to improve the surface strength of the clutch outer shell assembly, wherein the temperature of a laser beam is controlled to be 780 ℃ in the laser surface strengthening treatment operation process, and the laser beam subjected to laser surface strengthening treatment is protected by inert gas;
s3: the spline hub and the outer shell are respectively positioned and fixed, the spline hub is positioned and fixed on a special pressing device, the outer shell is fixedly clamped on a special fixture, and the positioning and fixing operation of the spline hub and the outer shell comprises the following steps:
s31: selecting a special pressing device and a special clamp which meet the specifications of the spline hub and the outer shell, arranging the special pressing device and the special clamp in positions so that the special pressing device is positioned at the upper side of the special clamp, and performing concentric alignment operation on the special pressing device and the special clamp;
s32: positioning adjustment operation, namely selecting three fixed points according to the characteristics of the outer side walls of the spline hub and the outer shell, measuring the position data of the three fixed points to obtain clamping fixed points of the spline hub and the outer shell, wherein the clamping fixed points are arranged according to the clamping requirements of the spline hub and the outer shell, and the number of the clamping fixed points is more than or equal to three, so that the clamping stability of the spline hub and the outer shell can be effectively improved, and the later connecting and mounting operation is facilitated;
s33: setting clamping mechanisms according to clamping fixed points on the special pressing device and the special clamp respectively according to the measured data;
s34: the clamping mechanism on the special pressing device is aligned with the clamping fixed point on the spline hub, so that the positioning and clamping operation of the special pressing device on the spline hub is realized, and the clamping mechanism on the special clamp is aligned with the clamping fixed point on the outer shell, so that the positioning and clamping operation of the special clamp on the outer shell is realized.
S4: the method comprises the steps that local heating treatment is carried out on the outer shell, the heating position is the connection position of the outer shell and the spline hub, so that the outer shell generates certain expansion, local heating operation is carried out on the connection position of the outer shell by adopting an induction heater, the induction heater is required to be uniformly distributed along the connection position of the outer shell, the temperature of the induction heater is controlled at 850 ℃, the temperature can be regulated and controlled according to different material properties, and certain thermal expansion deformation of the outer shell is ensured;
s5: pushing the spline hub through the special pressing device, so that the spline hub is inserted into the outer shell, cooling the outer shell by adopting a natural cooling mode, connecting the spline hub and the outer shell by utilizing the expansion and contraction principle of the outer shell, and when pushing the spline hub through the special pressing device, stopping movement of the special pressing device and keeping locking of the special pressing device after the upper surface of the joint of the spline hub is overlapped with the upper surface of the joint of the outer shell;
s6: processing operation is carried out on the connecting gap between the spline hub and the outer shell, the processing of the connecting gap between the spline hub and the outer shell comprises the discharging of impurities in the connecting gap, polishing of unevenly deformed metal and the measuring operation of the gap, and the influence of impurities on later welding is avoided through the processing operation on one hand, and the alignment welding operation of welding equipment can be facilitated on the other hand, so that the welding precision is high;
s7: in a state that the spline hub and the outer shell are fixed, a welding machine is used for carrying out welding operation on the spline hub and the outer shell, so that a complete annular closed welding seam is formed between the spline hub and the outer shell, the connection of the clutch outer shell assembly is realized in a laser welding mode, the output power range of the laser is 3kW-10kW, the welding speed is 1.0m/min-12.0m/min, the flow rate of shielding gas is 10L/min-35L/min, and in the laser welding process, the coaxial shielding gas blowing mode is adopted for blowing the shielding gas to a welding pool, so that the depth of a welding seam formed at a welding joint surface is ensured to meet the design requirement;
s8: and (5) releasing the fixation of the clutch outer housing assembly and completing the connection operation of the clutch outer housing assembly.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The composite connection method of the automobile clutch outer housing assembly comprises the following steps of:
s1: processing a spline hub and an outer shell which meet the size precision of the clutch outer shell assembly for standby;
s2: performing laser surface strengthening treatment operation on the spline hub and the outer shell so as to improve the surface strength of the clutch outer shell assembly;
s3: positioning and fixing the spline hub and the outer shell respectively, positioning and fixing the spline hub on a special pressing device, and fixing and clamping the outer shell on a special clamp;
s4: carrying out local heating treatment on the outer shell, wherein the heating position is the connection position of the outer shell and the spline hub, so that the outer shell expands to a certain extent;
s5: pushing the spline hub through a special pressing device, so that the spline hub is inserted into the outer shell, the outer shell is cooled, and the spline hub and the outer shell are connected by utilizing the principle of thermal expansion and contraction of the outer shell;
s6: processing the connection gap between the spline hub and the outer shell;
s7: in a state that the spline hub and the outer shell are fixed, a welding machine is used for welding the spline hub and the outer shell, so that a complete annular closed welding line is formed between the spline hub and the outer shell;
s8: and (5) releasing the fixation of the clutch outer housing assembly and completing the connection operation of the clutch outer housing assembly.
2. The method for compositely connecting the outer housing assembly of the clutch of the automobile according to claim 1, wherein the method comprises the following steps: in the step 2, the temperature of the laser beam is controlled at 780 ℃ in the operation process of the laser surface strengthening treatment, and the laser beam of the laser surface strengthening treatment is protected by inert gas.
3. The method for compositely connecting the outer housing assembly of the clutch of the automobile according to claim 1, wherein the method comprises the following steps: the positioning and fixing operation of the spline hub and the outer shell in the step 3 comprises the following steps:
s31: selecting a special pressing device and a special clamp which meet the specifications of the spline hub and the outer shell, arranging the special pressing device and the special clamp in positions so that the special pressing device is positioned at the upper side of the special clamp, and performing concentric alignment operation on the special pressing device and the special clamp;
s32: positioning and adjusting operation, namely selecting three fixed points according to the characteristics of the outer side wall of the spline hub and the outer shell, measuring the position data of the three fixed points, and obtaining clamping fixed points of the spline hub and the outer shell;
s33: setting clamping mechanisms according to clamping fixed points on the special pressing device and the special clamp respectively according to the measured data;
s34: the clamping mechanism on the special pressing device is aligned with the clamping fixed point on the spline hub, so that the positioning and clamping operation of the special pressing device on the spline hub is realized, and the clamping mechanism on the special clamp is aligned with the clamping fixed point on the outer shell, so that the positioning and clamping operation of the special clamp on the outer shell is realized.
4. A method of composite connection of an automotive clutch outer housing assembly according to claim 3, wherein: the clamping fixing points in the step 32 are set according to the clamping requirements of the spline hub and the outer shell, and the number of the clamping fixing points is more than or equal to three.
5. The method for compositely connecting the outer housing assembly of the clutch of the automobile according to claim 1, wherein the method comprises the following steps: the induction heater is adopted in the step 4 to perform local heating operation on the connection position of the outer shell, the induction heater is required to be uniformly distributed along the connection position of the outer shell, and the temperature of the induction heater is controlled at 850 ℃.
6. The method for compositely connecting the outer housing assembly of the clutch of the automobile according to claim 1, wherein the method comprises the following steps: and in the step 5, when the spline hub is pushed by the special pressing device, after the upper surface of the joint of the spline hub is overlapped with the upper surface of the joint of the outer shell, the special pressing device stops moving at the moment, and the special pressing device is kept locked.
7. The method for compositely connecting the outer housing assembly of the clutch of the automobile according to claim 1, wherein the method comprises the following steps: and in the step 5, the cooling operation is realized at the connecting position of the outer shell by adopting a natural cooling mode.
8. The method for compositely connecting the outer housing assembly of the clutch of the automobile according to claim 1, wherein the method comprises the following steps: step 6 is to the joint gap processing of spline hub and shell body including the discharge to the inside impurity of joint gap, polishes and the measuring operation of gap size to the metal of inhomogeneous deformation.
9. The method for compositely connecting the outer housing assembly of the clutch of the automobile according to claim 1, wherein the method comprises the following steps: in the step 7, the connection of the clutch outer shell assembly is realized by adopting a laser welding mode, the output power range of the laser is 3kW-10kW, the welding speed is 1.0m/min-12.0m/min, the flow of shielding gas is 10L/min-35L/min, and in the laser welding process, the shielding gas is blown to a welding pool by adopting a coaxial shielding blowing mode, so that the depth of a welding seam formed at a welding joint surface is ensured to meet the design requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311026465.XA CN116984770A (en) | 2023-08-15 | 2023-08-15 | Composite connection method for automobile clutch outer shell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311026465.XA CN116984770A (en) | 2023-08-15 | 2023-08-15 | Composite connection method for automobile clutch outer shell assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116984770A true CN116984770A (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311026465.XA Pending CN116984770A (en) | 2023-08-15 | 2023-08-15 | Composite connection method for automobile clutch outer shell assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116984770A (en) |
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2023
- 2023-08-15 CN CN202311026465.XA patent/CN116984770A/en active Pending
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