CN112355965B - Device for assembling wet clutch piston - Google Patents
Device for assembling wet clutch piston Download PDFInfo
- Publication number
- CN112355965B CN112355965B CN202011043680.7A CN202011043680A CN112355965B CN 112355965 B CN112355965 B CN 112355965B CN 202011043680 A CN202011043680 A CN 202011043680A CN 112355965 B CN112355965 B CN 112355965B
- Authority
- CN
- China
- Prior art keywords
- piston
- outer piston
- pressing
- pressing tool
- wet clutch
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention relates to a device for assembling a wet clutch piston, comprising: a main body; a platen mounted to the body and movable up and down relative to the body; the outer piston pressing tool is provided with a fastening structure for fixing an outer piston, and the fastening structure is used for being tightly fixed with the outer piston when the outer piston is pressed down; after the outer piston is pressed to a preset position, the outer piston and the outer piston are released from fixation; the inner piston pressing tool is provided with a pressing part for abutting against the inner piston and the clamp spring; the outer piston pressing tool and the inner piston pressing tool are selectively arranged on the pressing plate. The device for assembling the wet clutch piston can avoid the problems of lip scratch and poor assembly caused by inclination in the process of assembling the outer piston, small operation space for mounting a snap spring after the assembly and low efficiency, and can realize multiple purposes.
Description
Technical Field
The invention relates to the technical field of clutch assembly, in particular to a device for assembling a wet clutch piston.
Background
At present, the clutch is an important component in an automatic transmission system, and the clutch mainly comprises a dry clutch and a wet clutch, and the wet clutch is widely applied to the field of automatic transmissions due to the advantages of high torque capacity, good thermal performance, long service life and the like.
In the related technology, the outer lip of the outer piston of the wet clutch is generally in interference fit with the inner wall of the outer shell, so that the outer piston of the wet clutch can generate frictional resistance with the inner wall of the outer shell due to interference fit in the assembling process, and when the outer piston is not coaxial with the outer shell in the assembling process, the outer piston can be easily inclined, the use function of the piston is influenced, the abnormal combination of the clutch is caused, and the problem of NVH (noise, vibration and harshness) is caused; in addition, the outer piston may be inclined to scratch the outer lip of the outer piston, which may affect the service life of the outer lip of the outer piston and may cause damage to the outer lip in severe cases.
In addition, the inner piston of the wet clutch needs to overcome the pre-tightening force of the spring set during assembly, and the conventional assembly method is to press-fit the inner piston to a specified position and then open and install the clamp spring into the clamp spring groove; however, in the case of some wet clutches with a clutch shaft, this mounting method requires an operation in a clearance space between the inner piston pressing tool and the clutch shaft, and the mounting space is small, difficult to mount, and inefficient.
Therefore, there is a need for an apparatus for wet clutch piston assembly that overcomes the above problems.
Disclosure of Invention
The embodiment of the invention provides a device for assembling a wet clutch piston, which aims to solve the problems that when an outer piston of a wet clutch in the related art is installed on an outer shell, the outer piston is easy to incline, so that an outer lip is damaged, and a clamp spring of the wet clutch is difficult to install.
In a first aspect, there is provided an apparatus for wet clutch piston assembly comprising: a main body; a platen mounted to the body and movable up and down relative to the body; the outer piston pressing tool is provided with a fastening structure for fixing an outer piston, and the fastening structure is used for being tightly fixed with the outer piston when the outer piston is pressed down; after the outer piston is pressed to a preset position, the outer piston and the outer piston are released from fixation; the inner piston pressing tool is provided with a pressing part for abutting against the inner piston and the clamp spring; the outer piston pressing tool and the inner piston pressing tool are selectively arranged on the pressing plate.
In some embodiments, the fastening structures are uniformly arranged on the side surface of the outer piston pressing tool along the circumferential direction, and the fastening structures can tension the outer piston by radial force.
In some embodiments, the fastening structure comprises a steel ball and an elastic structure connected to the steel ball, and the steel ball can be pressed against the inner wall of the outer piston by the radial pressing force of the elastic structure.
In some embodiments, the outer piston pressing tool is provided with a pressing cavity, the steel ball and the elastic structure are located in the pressing cavity, and a stop block is further arranged in the pressing cavity and located on one side, far away from the steel ball, of the elastic structure; the check block can be pushed to compress the elastic structure by inflating the compression cavity, and the elastic structure pushes the steel ball to compress the outer piston.
In some embodiments, after the outer piston is pressed to the preset position, the air inflation into the pressing cavity is stopped, and the stop block can be pushed back to the initial position by the elastic structure.
In some embodiments, the press-fitting portion includes a first press-fitting portion for abutting against the inner piston and a second press-fitting portion for abutting against the snap spring, and the second press-fitting portion is formed by recessing from a bottom surface of the first press-fitting portion to an inside of the inner piston pressing tool.
In some embodiments, the device further comprises an inner guide block which can be sleeved on the clutch shaft, the outer side surface of the inner guide block is a conical surface, the outer diameter of the lower end surface of the inner guide block is equal to the outer diameter of the clamp spring mounting section of the clutch shaft, and the inner guide block is used for clamping the clamp spring on the outer side surface of the inner guide block when the clamp spring is mounted.
In some embodiments, the apparatus further comprises an outer guide block positionable within an outer housing of the wet clutch, the outer guide block for guiding a lip of the inner piston.
In some embodiments, the outer guide block has an inner side surface for contacting the lip of the inner piston, the inner side surface includes a vertical section, and a guide section located below the vertical section, the guide section is offset closer to the axis of the outer guide block than the vertical section, and the vertical section and the guide section are transited by an inclined transition section.
In some embodiments, the apparatus further comprises: the bottom plate is fixed on the main body and provided with a concave spigot; and the positioning block is used for fixing the clutch shaft of the wet clutch and the outer shell, and the bottom of the positioning block is contained in the concave spigot and is positioned through the concave spigot.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a device for assembling a wet clutch piston, wherein an outer piston pressing tool is arranged on a pressing plate, and is provided with a fastening structure, the fastening structure can be tightly fixed with an outer piston in the process of pressing the outer piston, so that the outer piston cannot fall off, meanwhile, the outer piston cannot generate relative displacement with the outer piston pressing tool, and the outer piston pressing tool is fixed on the pressing plate, so that the axis of the outer piston is positioned on the same vertical line with the axis of an outer shell, therefore, the position of the outer piston cannot move due to the friction resistance in interference fit with the outer shell in the pressing process, the problem that the outer piston is not coaxial with the outer shell in the installation process is avoided, the outer piston is not easy to incline, and the defects that the lip of the outer piston is scratched and broken due to the inclination of the outer piston in the pressing process can be overcome; the fastening structure can be released from fixation with the outer piston, so that the outer piston pressing tool can be conveniently and smoothly separated from the outer piston, and the problem that the outer piston and the outer shell are not coaxial is further avoided; an inner piston pressing tool can be further mounted on the pressing plate, and the inner piston pressing tool is provided with a pressing part for abutting against the inner piston and the clamp spring, so that the clamp spring and the inner piston can be pressed downwards to a preset position by the pressing part, the clamp spring does not need to be mounted after the inner piston is mounted, and the problems of small operation space and low efficiency in later mounting of the clamp spring are solved; the outer piston and the inner piston and the clamp spring can be installed in one device, and multiple purposes can be achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device for assembling a wet clutch piston according to an embodiment of the present invention when an outer piston pressing tool is installed;
FIG. 2 is a partially enlarged schematic view of the outer piston pressing tool of FIG. 1;
fig. 3 is a schematic structural diagram of an inner piston pressing tool installed in the device for assembling a wet clutch piston according to the embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of the inner piston pressing tool of FIG. 3;
fig. 5 is an enlarged schematic view of the outer guide block of fig. 3.
In the figure: 1. a main body; 11. a power mechanism; 12. a base; 2. pressing a plate; 21. a guide pin; 3. the outer piston compresses the frock; 31. a fastening structure; 311. a steel ball; 312. an elastic structure; 32. a compaction chamber; 33. a stopper; 34. an air tube; 4. a base plate; 41. a concave spigot; 42. a central bore; 43. a guide bar; 5. positioning blocks; 51. positioning holes; 6. a wet clutch; 61. an outer piston; 62. a clutch shaft; 621. a clamp spring mounting section; 622. a clamp spring groove; 63. an outer housing; 64. an inner piston; 65. a spring; 66. a spring holder; 67. a clamp spring; 7. the inner piston compresses the tooling; 71. a press-fitting section; 711. a first press-fitting section; 712. a second press-fitting section; 8. an inner guide block; 9. an outer guide block; 91. a vertical section; 92. a transition section; 93. a guide section.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a device for assembling a wet clutch piston, which can solve the problems that when an outer piston of a wet clutch in the related art is installed on an outer shell, the outer piston is easy to incline, so that an outer lip is damaged, and a clamp spring of the wet clutch is difficult to install.
Referring to fig. 1 and 3, in an apparatus for assembling a wet clutch piston according to an embodiment of the present invention, a wet clutch 6 may include a clutch shaft 62, an outer housing 63 fixed to the clutch shaft 62, an outer piston 61 installed in the outer housing 63, an inner piston 64 installed in the outer piston 61, and a clamp spring 67 installed at a top of the inner piston 64, and the apparatus for assembling a wet clutch piston may include: a main body 1; a pressing plate 2 which is mounted on the main body 1 and can move up and down relative to the main body 1; the outer piston pressing tool 3 is provided with a fastening structure 31 for fixing the outer piston 61, and the fastening structure 31 is used for being tightly fixed with the outer piston 61 when the outer piston 61 is pressed downwards; after the outer piston 61 is pressed to the preset position, the outer piston 61 is released from fixation, wherein the fastening structure 31 can be fixed with the outer piston 61 in an outward tensioning mode, can also be fixed with the outer piston 61 in a sucking disc mode, can also be fixed with the outer piston 61 in a magnet mode, and the like, as long as the fastening structure can be fixed with the outer piston 61 at any time and can be released from fixation with the outer piston 61 at any time; the inner piston pressing tool 7 can be provided with a pressing part 71 for abutting against the inner piston 64 and the clamp spring 67, namely, the pressing part 71 arranged on the inner piston pressing tool 7 can press the inner piston 64 and the clamp spring 67 to a preset position in the outer piston 61 at one time, the inner piston 64 does not need to be pressed to a specified position first, the clamp spring 67 is installed in a narrow space, and the installation efficiency is high; the outer piston pressing tool 3 and the inner piston pressing tool 7 can be alternatively arranged on the pressing plate 2.
Referring to fig. 1 and 3, in some embodiments, the main body 1 may include a power mechanism 11 at the top, the pressing plate 2 may be mounted on the power mechanism 11 through a bolt, and the pressing plate 2 may be driven by the power mechanism 11 to move up and down, and specifically, the power mechanism 11 may include an air cylinder, and the pressing plate 2 may be connected to the air cylinder and driven by the air cylinder to move up and down the pressing plate 2; alternatively, the power mechanism 11 may be provided with a motor and a ball screw to move the pressing plate 2 up and down.
Referring to fig. 1 and 3, preferably, the outer piston pressing tool 3 and the inner piston pressing tool 7 can be fixed to the pressing plate 2 through bolts, and are matched with the pressing plate 2 through rabbets, so that the installation accuracy is high, it is convenient to ensure that the axes of the outer piston pressing tool 3 and the outer shell 63 are located on the same vertical line, when the outer piston 61 needs to be installed, the outer piston pressing tool 3 can be installed on the pressing plate 2, when the inner piston 64 needs to be installed, the outer piston pressing tool 3 can be detached, the inner piston pressing tool 7 is installed on the pressing plate 2, and the outer piston pressing tool 3 and the inner piston pressing tool 7 are convenient to detach after being used and can be replaced at any time.
Referring to fig. 1 and 2, in some embodiments, the fastening structures 31 may be uniformly arranged on the side surface of the outer piston pressing tool 3 along the circumferential direction, and the fastening structures 31 may tension the outer piston 61 by a radial force, specifically, the outer piston pressing tool 3 may be substantially cylindrical, the outer piston pressing tool 3 may be provided with a plurality of fastening structures 31, the plurality of fastening structures 31 may be uniformly arranged along the circumferential direction of the outer piston pressing tool 3, and the fastening structures 31 may be arranged on the outer side surface of the outer piston pressing tool 3 or inside the outer piston pressing tool 3, and a part of the fastening structures 31 may protrude from the outer side surface of the outer piston pressing tool 3, so as to contact the inner wall surface of the outer piston 61, each fastening structure 31 may apply a radial force in a direction away from the axial direction of the outer piston pressing tool 3, and uniformly act on the inner wall of the outer piston 61 along the circumference of the outer piston 61 by a plurality of radial forces, thereby with outer piston 61 tensioning, realize outer piston 61 and outer piston and compress tightly fixed of frock 3 for the power evenly distributed that acts on outer piston 61 avoids outer piston 61 to produce the slope because of the atress is uneven at the in-process of pressure equipment.
Referring to fig. 1 and 2, in some alternative embodiments, the fastening structure 31 may include a steel ball 311 and an elastic structure 312 connected to the steel ball 311, and the steel ball 311 may be tightly held against the inner wall of the outer piston 61 by the radial pressing force of the elastic structure 312; specifically, the elastic structure 312 may be a spring, or another elastic mechanism or component, the elastic structure 312 may apply a radial pressing force to the steel ball 311 to make the steel ball 311 protrude out of the outer side surface of the outer piston pressing tool 3, and at the same time, make the steel ball 311 press the outer piston 61, by using the elastic structure 312, when the outer piston 61 needs to be pressed, a force may be applied to the elastic structure 312, and when the outer piston 61 does not need to be pressed, the force applied to the elastic structure 312 may be stopped, the structure is simple, and the fixing of the fastening structure 31 and the outer piston 61 is easily released.
Referring to fig. 1 and 2, in some embodiments, the outer piston pressing tool 3 may be provided with a pressing cavity 32, the steel ball 311 and the elastic structure 312 may be located in the pressing cavity 32, a stopper 33 may be further located in the pressing cavity 32, and the stopper 33 is located on a side of the elastic structure 312 away from the steel ball 311; specifically, the steel ball 311 and the elastic structure 312 are preferably arranged at one end of the pressing cavity 32, the elastic structure 312 is clamped between the steel ball 311 and the stopper 33, the stopper 33 is preferably made of a non-metallic material, so that the stopper 33 can form a closed space by connecting one side of the pressing cavity 32, which is not provided with the steel ball 311 and the elastic structure 312, with the pressing cavity 32 through the air pipe 34, and can be inflated, gas can push the stopper 33 to press the elastic structure 312 under the action of air pressure, further, the elastic structure 312 can push the steel ball 311 to press the outer piston 61, and by arranging the pressing cavity 32 and the stopper 33, the steel ball 311 and the outer piston 61 can be fixed by inflating the pressing cavity 32, and the structure is simple and low in cost.
Referring to fig. 1 and 2, in some alternative embodiments, after the outer piston 61 is pressed to the preset position of the outer shell 63, the inflation of the pressing cavity 32 may be stopped, and without being pushed by air pressure, the elastic structure 312 may return from the compressed state to the natural state, and under the action of the elastic structure 312, the stopper 33 may be pushed back to the initial position, the steel ball 311 returns to the free state without being pressed by the elastic structure 312, and the steel ball 311 does not generate a pressing effect on the outer piston 61, so that when the outer piston pressing tool 3 is separated from the outer piston 61, the outer piston 61 may not tilt due to friction force, which causes the outer piston 61 and the outer shell 63 to be out of axis.
Referring to fig. 1 and 3, in some embodiments, the apparatus for a wet clutch piston assembly may further include: a bottom plate 4 fixed on the main body 1, wherein the bottom plate 4 is provided with a concave spigot 41; specifically, the main body 1 may include a base 12 located below the power mechanism 11, the bottom plate 4 is preferably fixed to the base 12 by bolts, and the female spigot 41 may be a circular groove formed in the center of the bottom plate 4; the device for assembling the wet clutch piston can further comprise a positioning block 5 for fixing the clutch shaft 62 and the outer shell 63, the bottom of the positioning block 5 can be accommodated in the concave spigot 41 and positioned through the concave spigot 41, that is, the bottom of the positioning block 5 is equivalent to a convex spigot, the positioning block 5 is installed in the concave spigot 41, the positioning block 5 is in clearance fit with the concave spigot 41, the positioning block 5 is positioned through the concave spigot 41, and then the clutch shaft 62 and the outer shell 63 are fixed on the positioning block 5, compared with the case that the positioning block 5 is directly fixed on the bottom plate 4 through bolts, the concave spigot 41 is arranged to ensure that the assembly precision of the positioning block 5 and the bottom plate 4 is higher, so that the coaxiality of the clutch shaft 62 is ensured when the clutch shaft is fixed; meanwhile, a positioning hole 51 can be formed in the center of the positioning block 5, the clutch shaft 62 can be fixed in the positioning hole 51, a central hole 42 can be formed in the bottom plate 4 corresponding to the positioning hole 51, the central hole 42 is convenient for the clutch shaft 62 to pass through, after the clutch shaft 62 and the outer shell 63 are installed on the positioning block 5, the bottom surface of the outer shell 63 contacts with the upper end surface of the positioning block 5, positioning of the clutch shaft 62 in the vertical direction is guaranteed, the lower side surface of the clutch shaft 62 contacts with the positioning hole 51 of the positioning block 5, and coaxiality of the clutch shaft 62 is guaranteed.
Referring to fig. 1 and 3, in some alternative embodiments, the base plate 4 may be provided with a guide rod 43, the guide rod 43 preferably being connected to the base plate 4 by a screw thread; the pressure plate 2 can be provided with a guide pin 21 sleeved outside the guide rod 43, the guide pin 21 is preferably connected to the pressure plate 2 through threads, the guide pin 21 can move up and down along the guide rod 43, and the guide rod 43 can penetrate through the axis of the guide pin 21, so that the coaxiality of the pressure plate 2 during up and down movement is ensured.
Referring to fig. 2 and 4, in some alternative embodiments, the inner piston pressing tool 7 may be cylindrical, the inner piston pressing tool 7 may include a through hole at the center thereof, the through hole is used for the clutch shaft 62 to pass through, the press-fitting portion 71 may be disposed at the bottom of the inner piston pressing tool 7, and the press-fitting portion 71 may include a first press-fitting portion 711 for pressing against the inner piston 64 and a second press-fitting portion 712 for pressing against the snap spring 67, the second press-fitting portion 712 may be formed by recessing from the bottom surface of the first press-fitting portion 711 toward the inside of the inner piston pressing tool 7, so that the snap spring 67 may be accommodated in a recessed space between the first press-fitting portion 711 and the second press-fitting portion 712, and at the same time, when the inner piston 64 is mounted, the snap spring 67 may be placed on the inner piston 64, and the first press-fitting portion 711 may ensure that the second press-fitting portion 712 may contact the snap spring 67 while pressing the inner piston 64 downward, together pressing the snap spring 67 down into the snap spring groove 622 of the clutch shaft 62; when the clamp spring 67 moves down to the clamp spring groove 622, the clamp spring 67 is automatically clamped into the clamp spring groove 622, manual operation is not needed for clamping the clamp spring 67 into a narrow space, installation is convenient, and efficiency is high.
Referring to fig. 3 and 4, in some embodiments, the apparatus may further include an inner guide block 8 for guiding, the inner guide block 8 may be sleeved on the clutch shaft 62, an outer side surface of the inner guide block 8 may be a conical surface, that is, an upper end of the inner guide block 8 is small and a lower end is large, the clutch shaft 62 may have a clamp spring mounting section 621, a clamp spring groove 622 is disposed below the clamp spring mounting section 621, the inner guide block 8 may be sleeved above the clutch shaft clamp spring mounting section 621, a lower end surface of the inner guide block 8 may contact with an upper end surface of the clutch shaft clamp spring mounting section 621, an outer diameter of a lower end surface of the inner guide block 8 may be equal to an outer diameter of the clutch shaft clamp spring mounting section 621, so that the lower end surface of the inner guide block 8 may be just engaged with the clutch shaft clamp spring mounting section 621, when the clamp spring 67 is mounted, the clamp spring 67 may be clamped on the outer side surface of the inner guide block 8, the inner piston 64 can be located below the clamp spring 67, because the conical inner guide block 8 is arranged, along with the pushing of the inner piston pressing tool 7, the inner piston 64 and the clamp spring 67 can gradually move downwards along the outer side surface of the inner guide block 8 until the clamp spring 67 moves into the clamp spring groove 622 of the clutch shaft 62, through the arrangement of the inner guide block 8 with a certain height, the inner piston 64 and the clamp spring 67 can be installed at any height on the inner guide block 8, the installation difficulty of the inner piston 64 and the clamp spring 67 is reduced, and the installation is more convenient.
Referring to fig. 4 and 5, in some embodiments, the device may further include an outer guide block 9 that may be placed inside an outer housing 63 of the wet clutch 6, where the outer guide block 9 is used to guide a lip of the inner piston 64, and specifically, the outer guide block 9 may be disposed inside the outer housing 63 along an inner wall surface of the outer housing 63, and after the outer piston 61 is installed, the outer guide block 9 may be supported on the lip of the outer piston 61, and during the press-fitting of the inner piston 64, the lip of the inner piston 64 may contact the outer guide block 9 located outside thereof, and smoothly enter the outer piston 61 through the outer guide block 9.
Referring to fig. 4 and 5, in some alternative embodiments, the outer guide block 9 may be annular in shape as a whole, and the outer guide 9 may have an inner side for contacting the lip of the inner piston 64, the inner side may include a vertical section 91 at an upper portion of the outer guide 9, and a guide section 93 located below the vertical section 91, the guide section 93 being biased closer to the axis of the outer guide block 9 than the vertical section 91, and in particular, the guide section 93 may be located on the same vertical plane as the inner wall of the outer piston 61, and the vertical section 91 is offset to the outer side relative to the guide section 93, the vertical section 91 and the guide section 93 can be transited by an inclined transition section 92, that is, the transition section 92 can directly connect the vertical section 91 and the guide section 93, the transition section 92 can ensure that the lip of the inner piston 64 can smoothly enter the guide section 93 in the assembling process of the inner piston 64, and then the lip is smoothly connected to the cavity of the outer piston 61 through the guide section 93; an arc surface can be arranged between the vertical section 91 and the transition section 92, so that the vertical section 91 is connected with the transition section 92 through an arc, the transition at the corner when the lip of the inner piston 64 moves downwards is ensured, and the lip is prevented from being damaged due to sudden change of friction resistance; and the roughness of transition section 92 and direction section 93 is higher, can reduce the resistance in the assembly of inner piston 64 lip, guarantees that inner piston 64 lip does not receive the fish tail.
Referring to fig. 1 and 3, assembling a wet clutch piston using the above apparatus may include the steps of:
step 1: the outer piston pressing tool 3 is attached to the platen 2, and the combination of the outer housing 63 and the clutch shaft 62 is attached to the main body 1.
Referring to fig. 1, in some embodiments, before step 1, the power mechanism 11 may be controlled to raise the pressure plate 2 to the limit position, and then locked.
Referring to fig. 1, in some alternative embodiments, in step 1, the outer piston pressing tool 3 is mounted on the pressing plate 2, and the combination of the outer shell 63 and the clutch shaft 62 is mounted on the main body 1, which may specifically include the following steps: the outer piston pressing tool 3 is mounted on the pressing plate 2 through bolts, the combination body of the outer shell 63 and the clutch shaft 62 is vertically placed on the positioning block 5, the bottom surface of the outer shell 63 is in contact with the top surface of the positioning block 5, the clutch shaft 62 is inserted into the positioning hole 51 of the positioning block 5, and the outer side surface of the clutch shaft 62 is in contact with the positioning hole 51.
Step 2: the outer piston 61 is mounted at the bottom of the outer piston pressing tool 3, and the fastening structure 31 and the outer piston 61 are tightly fixed.
Referring to fig. 2, in some embodiments, in step 2, the step of installing the outer piston 61 at the bottom of the outer piston pressing tool 3 and tightly fixing the fastening structure 31 and the outer piston 61 may specifically include the following steps: the outer piston 61 is arranged at the bottom of the outer piston pressing tool 3, so that the inner bottom surface of the outer piston 61 is in contact with the lower bottom surface of the outer piston pressing tool 3, the verticality of the outer piston 61 is guaranteed, meanwhile, the air pipe 34 inflates the pressing cavity 32 of the outer piston pressing tool 3, so that the air pushes the stop block 33 to press the elastic structure 312, and the elastic structure 312 applies a radial pressing force to the steel ball 311 to push the steel ball 311 to press the inner wall of the outer piston 61.
And step 3: the press plate 2 is driven to move downwards, and the outer piston 61 is pressed to a preset position of the outer shell 63.
Referring to fig. 1, in some embodiments, in step 3, the driving of the platen 2 to move down to press the outer piston 61 to the preset position of the outer shell 63 may specifically include the following steps: the pressing plate 2 is driven to move downwards by controlling the power mechanism 11, the outer piston 61 moves downwards along with the outer piston pressing tool 3, the lip of the outer piston 61 is gradually contacted with the outer shell 63 in the downward moving process of the outer piston 61, and the outer piston 61 is pressed to a preset position in the outer shell 63 under the driving of the power mechanism 11 because the pressing force of the power mechanism 11 is larger than the friction resistance of the outer piston 61 and the outer shell 63, namely the lower bottom surface of the outer piston 61 is contacted with the inner bottom surface of the outer shell 63.
And 4, step 4: the fastening structure 31 and the outer piston 61 are released from the fixing, and the press plate 2 together with the outer piston pressing tool 3 is driven to move upwards.
In some embodiments, in step 4, the step of releasing the fastening structure 31 from the outer piston 61 and driving the platen 2 together with the outer piston pressing tool 3 to move upward may specifically include the following steps: and stopping inflating the pressing cavity 32 of the outer piston pressing tool 3, enabling the stop block 33 to not compress the elastic structure 312, enabling the elastic structure 312 to push the stop block 33 back to the initial position, enabling the steel ball 311 to recover the free state and not to press the outer piston 61, releasing the fixation of the fastening structure 31 and the outer piston 61, driving the pressing plate 2 to move upwards by the control power mechanism 11, and enabling the outer piston pressing tool 3 and the pressing plate 2 to move upwards out of the inner cavity of the outer piston 61 together.
And 5: and disassembling the outer piston pressing tool 3, and installing the inner piston pressing tool 7 on the pressing plate 2.
Referring to fig. 3 and 4, in some embodiments, the wet clutch 6 may further include a spring 65 and a spring holder 66 disposed between the inner piston 64 and the outer piston 61, and after step 5, the spring 65 and the spring holder 66 may be placed at a designated position within the outer piston 61.
Referring to fig. 4, in some embodiments, after step 5, the inner guide block 8 may be sleeved above the clutch shaft clamp spring mounting section 621, and the outer guide block 9 may be placed above the lip of the outer piston 61.
Step 6: the inner piston 64 and the snap spring 67 are mounted on the clutch shaft 62, the press plate 2 is driven to move downwards, and the inner piston 64 and the snap spring 67 are pressed together to a preset position.
Referring to fig. 3, in step 4, in some embodiments, the mounting of the inner piston 64 and the snap spring 67 on the clutch shaft 62 and the driving of the platen 2 to move down to press-fit the inner piston 64 and the snap spring 67 together to a predetermined position may include: the clamp spring 67 and the inner piston 64 are sleeved on the outer side surface of the inner guide block 8, the pressing plate 2 can drive the inner piston pressing tool 7 to move downwards together by driving the power mechanism 11, and the clamp spring 67 and the inner piston 64 are pressed and mounted to a preset position by the inner piston pressing tool 7; in the press fitting process, the inner side surfaces of the snap spring 67 and the inner piston 64 can move downwards along the outer side surface of the inner guide block 8, the inner diameter of the snap spring 67 is gradually expanded to be equal to the outer diameter of the snap spring mounting section 621 of the clutch shaft, the snap spring 67 can penetrate through the snap spring mounting section 621 of the clutch shaft until the snap spring 67 reaches the snap spring groove 622 of the clutch shaft 62, and meanwhile, the lip of the inner piston 64 can move downwards along the inner side surface of the outer guide block 9 until the lip moves to the preset position of the inner wall surface of the outer piston 61.
In some embodiments, after step 4, the power mechanism 11 may be driven to move the pressing plate 2 and the inner piston pressing tool 7 up to the limit position, so as to complete the assembly of the wet clutch piston.
The principle of the device for assembling the wet clutch piston provided by the embodiment of the invention is as follows:
because the outer piston pressing tool 3 is installed on the pressing plate 2, the outer piston pressing tool 3 is provided with the fastening structure 31, in the process of pressing the outer piston 61, the fastening structure 31 can be tightly fixed with the outer piston 61, so that the outer piston 61 cannot fall off, meanwhile, the outer piston 61 cannot generate relative displacement with the outer piston pressing tool 3, and the outer piston pressing tool 3 is fixed on the pressing plate 2 and cannot tilt, therefore, the outer piston 61 cannot move due to the friction resistance in interference fit with the outer shell 63 in the pressing process, the problem that the outer piston 61 is not coaxial with the outer shell 63 in the installation process is avoided, the outer piston 61 is not easy to tilt, and the defects that the lip of the outer piston 61 is scratched and broken due to the tilting of the outer piston 61 in the pressing process can be overcome; the fastening structure 31 can be released from the outer piston 61, so that the outer piston pressing tool 3 can be conveniently and smoothly separated from the outer piston 61, and the problem that the outer piston 61 and the outer shell 63 are not coaxial is further solved; an inner piston pressing tool 7 can be further mounted on the pressing plate 2, and the inner piston pressing tool 7 is provided with a pressing part 71 used for pressing the inner piston 64 and the clamp spring 67, so that the clamp spring 67 and the inner piston 64 can be pressed downwards to a preset position by the pressing part 71, the clamp spring 67 does not need to be mounted after the inner piston 64 is mounted, and the problems of small operation space and low efficiency in later mounting of the clamp spring 67 are solved; therefore, one device can be provided with the outer piston 61 and the inner piston 64 and the clamp spring 67, and multiple purposes can be achieved.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. An apparatus for assembly of a wet clutch piston, comprising:
a main body (1);
a platen (2) that is attached to the main body (1), and the platen (2) is movable up and down with respect to the main body (1);
the outer piston pressing tool (3) is provided with a fastening structure (31) for fixing an outer piston (61), and the fastening structure (31) is tightly fixed with the outer piston (61) when the outer piston (61) is pressed down; after the outer piston (61) is pressed to a preset position, the outer piston and the outer piston (61) are released from fixation;
the fastening structure (31) comprises a steel ball (311) and an elastic structure (312) connected to the steel ball (311), the outer piston pressing tool (3) is provided with a pressing cavity (32), the steel ball (311) and the elastic structure (312) are located in the pressing cavity (32), a stop block (33) is further arranged in the pressing cavity (32), and the stop block (33) is located on one side, far away from the steel ball (311), of the elastic structure (312); the stopper (33) can be pushed to press the elastic structure (312) by inflating the pressing cavity (32), and the elastic structure (312) pushes the steel ball (311) to press the outer piston (61);
the inner piston pressing tool (7) is provided with a pressing part (71) for pressing the inner piston (64) and the clamp spring (67);
the outer piston pressing tool (3) and the inner piston pressing tool (7) are alternatively arranged on the pressing plate (2);
the device also comprises an outer guide block (9) which can be placed in an outer housing (63) of the wet clutch (6), wherein the outer guide block (9) is used for guiding the lip of the inner piston (64).
2. The apparatus for a wet clutch piston assembly of claim 1, wherein:
the fastening structures (31) are uniformly arranged on the side face of the outer piston pressing tool (3) along the circumferential direction, and the fastening structures (31) can tension the outer piston (61) through radial force.
3. The apparatus for a wet clutch piston assembly of claim 2, wherein:
the steel ball (311) can be pressed against the inner wall of the outer piston (61) by the radial pressing force of the elastic structure (312).
4. The apparatus for a wet clutch piston assembly of claim 1, wherein:
after the outer piston (61) is pressed to a preset position, the air inflation into the pressing cavity (32) is stopped, and the stop block (33) can be pushed back to the initial position by the elastic structure (312).
5. The apparatus for a wet clutch piston assembly of claim 1, wherein:
the press-fitting portion (71) comprises a first press-fitting portion (711) used for abutting against the inner piston (64) and a second press-fitting portion (712) used for abutting against the clamp spring (67), and the second press-fitting portion (712) is formed by sinking from the bottom surface of the first press-fitting portion (711) to the inner portion of the inner piston pressing tool (7).
6. The apparatus for a wet clutch piston assembly of claim 1, wherein:
the device also comprises an inner guide block (8) which can be sleeved on the clutch shaft (62), the outer side surface of the inner guide block (8) is a conical surface, the outer diameter of the lower end surface of the inner guide block (8) is equal to that of the clamp spring mounting section (621) of the clutch shaft (62),
the inner guide block (8) is used for installing the clamp spring (67), and the clamp spring (67) is clamped on the outer side surface of the inner guide block (8).
7. The apparatus for a wet clutch piston assembly of claim 1, wherein:
the outer guide block (9) is provided with an inner side surface which is used for being in contact with the lip of the inner piston (64), the inner side surface comprises a vertical section (91) and a guide section (93) which is positioned below the vertical section (91),
the guide section (93) is deviated to be close to the axis of the outer guide block (9) than the vertical section (91), and the vertical section (91) and the guide section (93) are transited through an inclined transition section (92).
8. The apparatus for a wet clutch piston assembly of claim 1, further comprising:
a bottom plate (4) fixed to the main body (1), the bottom plate (4) being provided with a female spigot (41);
and a positioning block (5) for fixing a clutch shaft (62) of the wet clutch (6) and the outer housing (63), wherein the bottom of the positioning block (5) is accommodated in the female spigot (41) and is positioned through the female spigot (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011043680.7A CN112355965B (en) | 2020-09-28 | 2020-09-28 | Device for assembling wet clutch piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011043680.7A CN112355965B (en) | 2020-09-28 | 2020-09-28 | Device for assembling wet clutch piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112355965A CN112355965A (en) | 2021-02-12 |
| CN112355965B true CN112355965B (en) | 2022-03-25 |
Family
ID=74508355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011043680.7A Active CN112355965B (en) | 2020-09-28 | 2020-09-28 | Device for assembling wet clutch piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112355965B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084491B (en) * | 2021-04-21 | 2022-09-09 | 珠海华粤传动科技有限公司 | Assembling tool and assembling method for clutch piston |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104162A (en) * | 1988-03-17 | 1992-04-14 | Shin Caterpillar Mitsubishi Ltd. | Apparatus for aligning and assembling clutch plates and clutch guides in a multiple disk clutch |
| JPH06277958A (en) * | 1993-03-29 | 1994-10-04 | Mazda Motor Corp | Multiplate clutch installing method and device thereof |
| CN208913517U (en) * | 2018-09-16 | 2019-05-31 | 格特拉克（江西）传动系统有限公司 | Clutch dummy piston press-loading apparatus |
| CN209157612U (en) * | 2018-10-23 | 2019-07-26 | 武汉联航机电有限公司 | A kind of press-loading apparatus |
| CN110732859A (en) * | 2019-12-02 | 2020-01-31 | 安徽江淮汽车集团股份有限公司 | automatic transmission oil way cylinder sleeve press-fitting equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7788778B2 (en) * | 2007-04-02 | 2010-09-07 | Gm Global Technology Operations, Inc. | Apparatus and method of assembling a piston on a shaft over a lip seal |
| CN210499123U (en) * | 2019-07-18 | 2020-05-12 | 柳州上汽汽车变速器有限公司柳东分公司 | Balance piston assembly guiding tool for continuously variable transmission |
-
2020
- 2020-09-28 CN CN202011043680.7A patent/CN112355965B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104162A (en) * | 1988-03-17 | 1992-04-14 | Shin Caterpillar Mitsubishi Ltd. | Apparatus for aligning and assembling clutch plates and clutch guides in a multiple disk clutch |
| JPH06277958A (en) * | 1993-03-29 | 1994-10-04 | Mazda Motor Corp | Multiplate clutch installing method and device thereof |
| CN208913517U (en) * | 2018-09-16 | 2019-05-31 | 格特拉克（江西）传动系统有限公司 | Clutch dummy piston press-loading apparatus |
| CN209157612U (en) * | 2018-10-23 | 2019-07-26 | 武汉联航机电有限公司 | A kind of press-loading apparatus |
| CN110732859A (en) * | 2019-12-02 | 2020-01-31 | 安徽江淮汽车集团股份有限公司 | automatic transmission oil way cylinder sleeve press-fitting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112355965A (en) | 2021-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112355965B (en) | Device for assembling wet clutch piston | |
| US9541194B2 (en) | Cylinder device with force multiplier | |
| US20020152789A1 (en) | Press apparatus | |
| CN110849545B (en) | Gearbox casing leakage test shutoff mechanism | |
| KR20200068060A (en) | Positioning method of bearing of small air compressor and its positioning structure | |
| CN114310251B (en) | Automatic press-fitting detection device for snap spring | |
| CN217991608U (en) | Motor assembling device | |
| CN212239232U (en) | Tensioning clamp | |
| CN111468751A (en) | Tensioning clamp | |
| CN218416132U (en) | Convenient assembly fixture for ball bearing of tail shaft of hydraulic plunger pump | |
| CN219568126U (en) | Self-locking clamping device and silicon carbide epitaxial equipment | |
| CN216506861U (en) | Quick die change mechanism of tire vulcanizer reaches tire vulcanizer including this mechanism | |
| CN112620576A (en) | Chain riveting device | |
| CN219504615U (en) | Tensioning positioning mechanism | |
| CN117506785A (en) | Seal mounting apparatus | |
| CN218030974U (en) | Pipe position anchor clamps fixed knot constructs and printing machine | |
| CN219465518U (en) | Clamping device | |
| CN219085926U (en) | Tray fixing device | |
| CN111664158B (en) | Thread fixing quick connector and method for connecting quick connector and transmitter | |
| CN219170710U (en) | Bearing installation jig with adjustable pretightening force | |
| CN214383021U (en) | Clamp spring assembling device | |
| CN216180215U (en) | Bearing press-mounting tool | |
| CN219945176U (en) | Clamp spring press-fitting guiding mechanism | |
| CN219444848U (en) | Quick positioner of elasticity | |
| CN111673424B (en) | Mounting method of engine driven bevel gear |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |