Connecting rod assembly installation system and method

Abstract

The present invention relates to the technical field of vehicle connecting rods, and more specifically, to a connecting rod assembly installation system and method. A base assembly; a positioning assembly; a pressing assembly, the pressing assembly includes a pressing unit and a first guide unit; the pressing unit includes a pressing module and a third driving unit; the pressing module includes a pressing seat, an elastic sheet, and a pressing head; a connecting rod assembly, the connecting rod assembly includes a rod body, a first set unit, and a bushing unit; the connecting rod assembly installation system includes a first pressing state and a second pressing state; the first pressing state includes the rod body and the first set unit respectively abutting against the positioning assembly, the bushing unit is arranged in the first guide ring, one end of the outer sleeve abuts against the inner circumferential wall of the second guide ring, the pressing head abuts against one end of the outer sleeve, and the pressing head is spaced apart from the inner circumferential wall of the first guide ring; the second pressing state includes the pressing head abutting against the inner circumferential wall of the second guide ring, the elastic sheet is spaced apart from the first guide ring and the second guide ring, and the shrinkage groove is closed. In this way, the problem of difficult pressing of the bushing unit is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle connecting rods, and in particular to a connecting rod assembly installation system and method. Background Art

[0002] During the design and manufacturing process of the vehicle, the connecting rod assembly, as an important part of the vehicle suspension system, plays the role of connecting the wheels and the frame. Its performance directly affects the safety and stability of the vehicle. With the continuous improvement of vehicle performance, higher requirements are also put forward for the connecting rod assembly. The connecting rod assembly is mainly composed of the rod body, the first set unit, and the bushing unit. During the installation of the connecting rod assembly, the bushing unit needs to be pressed into the first set unit.

[0003] However, since the opening of the bushing unit with one side opening will close during the process of pressing into the first unit, the pressure head of the pressing unit will also close synchronously with the closing of the bushing unit. During the closing process, the elastic sheet of the pressing unit will bulge outward, which may cause the elastic sheet to abut against the guide ring, and the friction generated will make the pressing not smooth. At the same time, the abutment may cause the pressing point of the pressure head and the end of the bushing unit to shift, reducing the pressing area. Summary of the invention

[0004] In order to solve the problem of difficulty in pressing a bushing unit, the present invention provides a connecting rod assembly installation system and method.

[0005] In a first aspect, the present invention provides a connecting rod assembly installation system, the connecting rod assembly installation system comprising:

[0006] Base assembly;

[0007] A positioning assembly, the positioning assembly is detachably connected to the base assembly;

[0008] A pressing assembly, wherein the pressing assembly comprises a pressing unit and a first guide unit; the pressing unit comprises a pressing module and a third driving unit; the pressing module comprises a pressing seat, an elastic sheet and a pressing head; the third driving unit is detachably connected to the pressing seat to drive the pressing module to move; one end of the elastic sheet is fixedly connected to the pressing seat, and the other end is fixedly connected to the pressing head; a plurality of elastic sheets are arranged at intervals along the circumferential direction of the pressing seat axis; one pressing head is arranged correspondingly to one elastic sheet; two adjacent pressing heads are arranged at intervals; the diameter of the outer contour circles of the plurality of pressing heads is greater than the diameter of the outer contour circles of the plurality of elastic sheets; the first guiding unit comprises a first guiding ring, a second guiding ring and a fourth driving unit; the first guiding ring is fixedly connected to the second guiding ring; the second guiding ring is arranged on the side of the first guiding ring away from the pressing unit; the fourth driving unit is detachably connected to the first guiding ring and / or the second guiding ring; the diameter of the first guiding ring is equal to the maximum diameter of the second guiding ring; the diameter of the second guiding ring gradually decreases from one end close to the first guiding ring to the other end;

[0009] A connecting rod assembly, the connecting rod assembly comprising a rod body, a first sleeve unit, and a bushing unit; the rod body is fixedly connected to the first sleeve unit; the bushing unit comprises a center sleeve, an elastic part, an outer sleeve, and a shrinkage groove; the elastic part is sleeved on the outer circumference of the center sleeve, and the elastic part is fixedly connected to the center sleeve; the outer sleeve is sleeved on the outer circumference of the elastic part, and the elastic part is fixedly connected to the outer sleeve; the shrinkage groove extends from the outer wall of the outer sleeve toward the center sleeve to the inside of the elastic part;

[0010] The connecting rod assembly installation system also includes a first pressing state and a second pressing state; the first pressing state includes the rod body and the first sleeve unit respectively abutting against the positioning assembly, the bushing unit is arranged in the first guide ring, one end of the outer sleeve abuts against the inner circumferential wall of the second guide ring, the pressure head abuts against one end of the outer sleeve, and the pressure head is spaced apart from the inner circumferential wall of the first guide ring; the second pressing state includes the pressure head abutting against the inner circumferential wall of the second guide ring, the elastic sheet is spaced apart from the first guide ring and the second guide ring, and the shrinkage groove is contracted.

[0011] In some embodiments, the pressing module also includes a pressing groove; the pressing groove is formed by the pressing head being recessed from one end away from the elastic sheet toward the other end; the pressing groove includes a first wall and a second wall; one end of the first wall is fixedly connected to one end of the second wall; the first wall is arranged on a side of the pressing groove close to the outer contour of the pressing head; the second wall is arranged at the bottom of the pressing groove; the sleeve includes a straight line segment and a closing segment; one end of the straight line segment is fixedly connected to one end of the closing segment; the outer diameter of the closing segment gradually decreases from one end close to the straight line segment to the other end; the first pressing state also includes the second wall abutting against one end of the sleeve, and the first wall abutting against the outer peripheral wall of the closing segment.

[0012] In some embodiments, one end of the second wall away from the first wall extends obliquely toward the elastic sheet.

[0013] In some embodiments, the angle between the second wall and the central axis of the pressing module is greater than or equal to the angle between the inner circumferential wall of the second guide ring and the central axis of the first guide unit.

[0014] In some embodiments, the diameter of the outer contour circle of one end of the plurality of elastic sheets close to the pressure head is greater than or equal to the diameter of the outer contour circle of the other end of the plurality of elastic sheets.

[0015] In some embodiments, the first set unit includes a first upper set and a first lower set; one side of the first upper set is fixedly connected to one end of the rod body; one side of the first lower set is fixedly connected to one end of the rod body; the first upper set and the first lower set are spaced apart along the same central axis; the first upper set and the first lower set are both in annular shape.

[0016] In some embodiments, the positioning assembly includes a first support unit and a second support unit; the first support unit includes a first support block and a first driving unit; the first driving unit is drivingly connected to the first support block; the second support unit includes a second support block and a second driving unit; the second driving unit is drivingly connected to the second support block; the second pressing state also includes one side of the first support block and / or the second support block abutting against a side of the first upper sleeve close to the first lower sleeve, and the other side abutting against a side of the first lower sleeve close to the first upper sleeve.

[0017] In some embodiments, the pressing assembly also includes a second guide unit; the second guide unit includes a guide column and a fifth driving part; the guide column is arranged adjacent to the side of the second guide ring away from the first guide ring; one end of the guide column is detachably connected to the fifth driving part; one end of the guide column away from the fifth driving part extends along the central axis of the second guide ring toward the direction close to the second guide ring; the second pressing state also includes one end of the guide column passing through the center hole of the center sleeve.

[0018] In a second aspect, the present invention provides a connecting rod assembly installation method, which can be applied to any one of the connecting rod assembly installation systems in the first aspect, and the connecting rod assembly installation method comprises:

[0019] Step S10, based on the press-fitting requirement of the connecting rod assembly, the connecting rod assembly installation system enters a first press-fitting state; wherein the first press-fitting state includes the rod body and the first sleeve unit respectively abutting against the positioning assembly, the sleeve unit is arranged in the first guide ring, one end of the outer sleeve abuts against the inner circumferential wall of the second guide ring, the pressure head abuts against one end of the outer sleeve, and the pressure head is spaced apart from the inner circumferential wall of the first guide ring;

[0020] Step S20, based on the connecting rod assembly installation system entering the first pressing state, the pressing head moves along the central axis of the first guide unit toward the direction close to the second guide ring;

[0021] Step S30, based on the pressing head moving along the central axis of the first guide unit toward the direction close to the second guide ring, the connecting rod assembly installation system switches to a second pressing state; wherein the second pressing state includes the pressing head abutting against the inner peripheral wall of the second guide ring, the elastic sheet being spaced apart from the first guide ring and the second guide ring, and the shrinkage groove being closed;

[0022] Step S40, based on the connecting rod assembly installation system switching to the second pressing state, the pressing head presses the bushing unit to the installation position of the connecting rod assembly; wherein the installation position includes the inner circumferential wall of the first set unit abutting against the outer circumferential wall of the outer sleeve.

[0023] In some embodiments, the installation position in step S40 also includes a symmetry plane in the opening direction of the contraction groove that is perpendicular to the axis in the length direction of the rod body.

[0024] In order to solve the problem of difficult pressing of the bushing unit, the present invention has the following advantages:

[0025] The pressing assembly includes a pressing unit and a first guide unit, which are used to realize the pressing of the bushing unit. The pressing unit includes a pressing module and a third driving unit. The pressing module includes a pressing seat, an elastic sheet and a pressing head. The diameter of the outer contour circle of the multiple pressing heads is larger than the diameter of the outer contour circle of the multiple elastic sheets, so that the pressing head extends radially away from the central axis, thereby increasing the spacing between the elastic sheet and the inner wall of the guide ring, reducing the possibility of pressing jamming caused by the friction force generated by the abutment between the elastic sheet and the inner wall of the first guide unit during the pressing of the bushing unit by the pressing head, and at the same time, increasing the pressing area of ​​the end of the pressing head and the bushing unit, avoiding the end pressing point of the pressing head and the bushing unit from being dislocated due to the abutment between the elastic sheet and the first guide unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a connecting rod assembly installation system according to an embodiment is shown;

[0027] Figure 2 A schematic diagram of a bushing unit of a first embodiment is shown;

[0028] Figure 3 A schematic diagram of a bushing unit of a second embodiment is shown;

[0029] Figure 4 A schematic diagram of a bushing unit of a third embodiment is shown;

[0030] Figure 5 A schematic diagram of a connecting rod assembly according to an embodiment is shown;

[0031] Figure 6 A partial schematic diagram of a connecting rod assembly installation system according to a first embodiment is shown;

[0032] Figure 7 A partial schematic diagram of a connecting rod assembly installation system of a second embodiment is shown;

[0033] Figure 8 A partial schematic diagram of a connecting rod assembly installation system of a third embodiment is shown;

[0034] Fig. 9 A partial schematic diagram of a connecting rod assembly installation system of a fourth embodiment is shown.

[0035] Reference numerals: 01 connecting rod assembly; 11 rod body; 12 first set unit; 121 first upper set; 122 first lower set; 13 second set unit; 131 second upper set; 132 second lower set; 14 bushing unit; 141 center sleeve; 142 elastic part; 143 outer sleeve; 1431 straight section; 1432 closing section; 144 contraction groove; 02 base assembly; 03 positioning assembly; 31 first positioning column; 32 second positioning column; 33 first support unit; 331 first support block; 332 first drive moving part; 34 second supporting unit; 341 second supporting block; 342 second driving part; 04 pressing assembly; 41 pressing unit; 411 pressing module; 4111 pressing seat; 4112 elastic sheet; 4113 pressing head; 4114 pressing groove; 41141 first wall; 41142 second wall; 412 third driving part; 42 first guiding unit; 421 first guiding ring; 422 second guiding ring; 423 fourth driving part; 43 second guiding unit; 431 guiding column; 432 fifth driving part. DETAILED DESCRIPTION

[0036] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0037] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "multiple" means two or more.

[0038] During the installation of the connecting rod assembly 01, the bushing unit 14 needs to be pressed into the first sleeve unit 12 through the pressing unit 41. During the pressing process, the pressing head 4113 of the pressing unit 41 will be retracted. However, during the retraction of the pressing unit 41, the elastic sheet 4112 of the pressing module 411 bulges outward, causing the elastic sheet 4112 to abut against the guide ring, and the friction force generated makes the pressing not smooth. This embodiment provides a connecting rod assembly 01 installation system, such as Figure 1As shown, the connecting rod assembly 01 installation system may include a base assembly 02, a positioning assembly 03, a pressing assembly 04 and a connecting rod assembly 01. The base assembly 02 may be used to fix other components. The positioning assembly 03 is detachably connected to the base assembly 02. The pressing assembly 04 may include a pressing unit 41 and a first guide unit 42. The pressing unit 41 may provide a pressing force for the bushing unit 14 so that the bushing unit 14 may be pressed into the first sleeve unit 12. The first guide unit 42 may guide the pressing unit 41 when the pressing unit 41 is pressed down. Figure 6As shown, the pressing unit 41 may include a pressing module 411 and a third driving part 412. The pressing module 411 may include a pressing seat 4111, an elastic sheet 4112 and a pressing head 4113. The third driving part 412 is detachably connected to the pressing seat 4111, and the pressing module 411 may be driven to move by the third driving part 412. One end of the elastic sheet 4112 may be fixedly connected to the pressing seat 4111, and the other end may be fixedly connected to the pressing head 4113, so that the pressing seat 4111 may drive the pressing head 4113 to press the bushing unit 14 through the elastic sheet 4112. The elastic sheet 4112 may be deformed during the press-fitting process, so that the pressing head 4113 may be retracted by the elastic sheet 4112 during the press-fitting process of the pressing module 411. A plurality of elastic sheets 4112 may be axially spaced along the axis of the pressing seat 4111, and a pressing head 4113 may be arranged corresponding to an elastic sheet 4112. By providing a plurality of elastic sheets 4112 and a pressing head 4113, the contact area between the bushing unit 14 and the pressing head 4113 is increased, so that the bushing unit 14 is subjected to a more uniform force, and the bushing unit 14 is prevented from tilting during the press-fitting process. Two adjacent pressing heads 4113 can be arranged at intervals, so that a certain compression space is provided to the pressing head 4113 when the two adjacent pressing heads 4113 are folded. The diameter of the outer contour circle of the plurality of pressing heads 4113 can be greater than the diameter of the outer contour circle of the plurality of elastic sheets 4112, so that the pressing head 4113 extends radially away from the central axis, so that during the process of the bushing unit 14 being pressed by the pressing unit 41, the contact area between the pressing head 4113 and the end face of the bushing unit 14 is increased, so that the pressing is more stable. The first guide unit 42 may include a first guide ring 421, a second guide ring 422 and a fourth drive portion 423. The first guide ring 421 can guide the bushing unit 14 and the pressing unit 41 during the press-fitting process to prevent the positions of the bushing unit 14 and the pressing unit 41 from being offset. The first guide ring 421 and the second guide ring 422 can be fixedly connected, and the second guide ring 422 can be arranged on the side of the first guide ring 421 away from the pressing unit 41. The fourth driving part 423 is detachably connected to the first guide ring 421 and / or the second guide ring 422. The diameter of the first guide ring 421 can be equal to the maximum diameter of the second guide ring 422. The diameter of the second guide ring 422 can gradually decrease from one end close to the first guide ring 421 to the other end, so that during the pressing process of the bushing unit 14 and the pressing unit 41, the second guide ring 422 can make the bushing unit 14 and the pressing unit 41 close together, so as to facilitate the subsequent pressing of the bushing unit 14.

[0039] like Figure 5 As shown, the connecting rod assembly 01 may include a rod body 11, a first sleeve unit 12, and a bushing unit 14. The rod body 11 may be fixedly connected to the first sleeve unit 12. Figure 3As shown, the bushing unit 14 may include a central sleeve 141, an elastic portion 142, an outer sleeve 143, and a shrinkage groove 144. The elastic portion 142 may be sleeved on the outer peripheral side of the central sleeve 141 to play a certain buffering role. Figure 2 As shown, the elastic part 142 can be fixedly connected to the center sleeve 141. The outer sleeve 143 can be sleeved on the outer peripheral side of the elastic part 142 to reduce the wear of the elastic part 142. The elastic part 142 can be fixedly connected to the outer sleeve 143. Figure 4 As shown, the contraction groove 144 can extend from the outer wall of the outer sleeve 143 toward the direction close to the center sleeve 141 to the elastic part 142, so that during the press-fitting process of the bushing unit 14, the bushing unit 14 can be contracted through the contraction groove 144, thereby facilitating the press-fitting of the bushing unit 14. The larger diameter of the pressing head 4113 allows the pressing head 4113 to abut against the outer sleeve 143 of the bushing unit 14, so that the force of the pressing head 4113 can act more on the outer sleeve 143, reducing the pressing force of the pressing head 4113 on the elastic part 142, thereby preventing the elastic part 142 from being damaged by a large pressing force during the press-fitting process.

[0040] The connecting rod assembly 01 installation system may also include a first pressing state and a second pressing state. The first pressing state may include that the rod body 11 and the first sleeve unit 12 are respectively abutted against the positioning assembly 03, the bushing unit 14 may be arranged in the first guide ring 421, one end of the outer sleeve 143 may abut against the inner circumferential wall of the second guide ring 422, and the pressure head 4113 may abut against one end of the outer sleeve 143, so that the pressure head 4113 can provide a pressing force to the bushing unit 14 assembly through the outer sleeve 143. The pressure head 4113 and the inner circumferential wall of the first guide ring 421 may be spaced apart. The second pressing state may include that the pressure head 4113 abuts against the inner circumferential wall of the second guide ring 422, and the elastic sheet 4112 is spaced apart from the first guide ring 421 and the second guide ring 422 to prevent the elastic sheet 4112 from contacting with the first guide ring 421 and / or the second guide ring 422 to generate friction and affect the pressing of the bushing unit 14. The contraction groove 144 is contracted so that the bushing unit 14 can be pressed into the first sleeve unit 12 .

[0041] In this embodiment, the pressing module 411 may further include a pressing groove 4114. The pressing groove 4114 may be formed by the pressing head 4113 being recessed from one end of the elastic sheet 4112 toward the other end. The pressing groove 4114 may include a first wall 41141 and a second wall 41142. One end of the first wall 41141 may be fixedly connected to one end of the second wall 41142. Figure 7As shown, the first wall 41141 can be arranged on one side of the pressing groove 4114 close to the outer contour of the pressing head 4113, and the second wall 41142 can be arranged at the bottom of the pressing groove 4114. The outer sleeve 143 can include a straight section 1431 and a closing section 1432. One end of the straight section 1431 can be fixedly connected to one end of the closing section 1432. The outer diameter of the closing section 1432 can gradually decrease from one end close to the straight section 1431 to the other end. The first pressing state can also include the second wall 41142 abutting against one end of the outer sleeve 143, so that the pressing unit 41 can provide a pressing force to the outer sleeve 143 through the second wall 41142, and the first wall 41141 can abut against the outer peripheral wall of the closing section 1432, so as to limit the movement of the pressing head 4113 in the radial direction, and prevent the pressing head 4113 from sliding in the direction close to the elastic part 142, thereby causing damage to the elastic part 142 of the bushing unit 14.

[0042] In this embodiment, if Figure 8 As shown, one end of the second wall 41142 away from the first wall 41141 can be inclined and extended toward the direction close to the elastic sheet 4112, and the inclination direction of the second wall 41142 can be opposite to the contraction direction of the pressing head 4113, thereby increasing the force area of ​​the pressing groove 4114 and the sleeve 143 during the pressing process, avoiding local deformation or force concentration of the bushing unit 14.

[0043] In this embodiment, the angle between the second wall 41142 and the central axis of the pressing module 411 may be greater than or equal to the angle between the inner circumferential wall of the second guide ring 422 and the central axis of the first guide unit 42. Thus, when the pressing head 4113 is pressed down, the contact area between the second wall 41142 and the end of the outer sleeve 143 is larger, so that the pressing effect of the pressing head 4113 is better.

[0044] In this embodiment, the diameter of the outer contour circle of one end of the plurality of elastic sheets 4112 close to the pressure head 4113 may be greater than or equal to the diameter of the outer contour circle of the other end of the plurality of elastic sheets 4112. The flared design of the elastic sheet 4112 enables the end of the elastic sheet 4112 close to the pressure head 4113 to generate a radial component of force when it is closed, thereby reducing the radial component of force on the end of the elastic sheet 4112 away from the pressure head 4113, thereby reducing the risk of the elastic sheet 4112 breaking and extending the service life of the elastic sheet 4112.

[0045] In this embodiment, the first set unit 12 may include a first upper sleeve 121 and a first lower sleeve 122. One side of the first upper sleeve 121 may be fixedly connected to one end of the rod body 11. One side of the first lower sleeve 122 may be fixedly connected to one end of the rod body 11. The first upper sleeve 121 and the first lower sleeve 122 may be spaced apart along the same central axis. The first upper sleeve 121 and the first lower sleeve 122 may both be annular, so that the bushing unit 14 may be disposed in the first upper sleeve 121 and the first lower sleeve 122. In other embodiments, the rod body 11 may further include a second set unit 13. The second set unit 13 may include a second upper sleeve 131 and a second lower sleeve 132. One side of the second upper sleeve 131 may be fixedly connected to one end of the rod body 11. One side of the second lower sleeve 132 may be fixedly connected to one end of the rod body 11. The second upper sleeve 131 and the second lower sleeve 132 may be spaced apart along the same central axis. The second upper sleeve 131 and the second lower sleeve 132 may both be annular, so that the bushing unit 14 may be disposed inside the second upper sleeve 131 and the second lower sleeve 132 .

[0046] In this embodiment, the positioning assembly 03 may include a first support unit 33 and a second support unit 34. The first support unit 33 may include a first support block 331 and a first driving unit 332. The first driving unit 332 may be drivingly connected to the first support block 331. Fig. 9 As shown, the second support unit 34 may include a second support block 341 and a second driving portion 342. The second driving portion 342 may be drivingly connected to the second support block 341. The second pressing state may also include that one side of the first support block 331 and / or the second support block 341 abuts against a side of the first upper sleeve 121 close to the first lower sleeve 122, thereby playing a certain supporting role on the first upper sleeve 121, preventing the first upper sleeve 121 from being deformed by the pressing force when pressed down, and the other side may abut against a side of the first lower sleeve 122 close to the first upper sleeve 121, so that the first lower sleeve 122 can play a certain supporting role on the first support block 331 and / or the second support block 341, and at the same time, the side of the first lower sleeve 122 away from the first upper sleeve 121 may abut against the first positioning column 31 and / or the second positioning column 32, preventing the first lower sleeve 122 from being deformed by the pressing force when pressed down.

[0047] In this embodiment, the pressing assembly 04 may also include a second guide unit 43. The second guide unit 43 may include a guide column 431 and a fifth drive unit 432. The guide column 431 may be arranged adjacent to the side of the second guide ring 422 away from the first guide ring 421, and one end of the guide column 431 is detachably connected to the fifth drive unit 432. The end of the guide column 431 away from the fifth drive unit 432 may extend along the central axis of the second guide ring 422 toward the direction close to the second guide ring 422, and the second pressing state may also include one end of the guide column 431 passing through the central hole of the center sleeve 141, and the guide column 431 plays a certain guiding and positioning role when the bushing unit 14 is pressed, ensuring the position of the bushing unit 14 assembly during the pressing, and preventing the bushing unit 14 assembly from being skewed during the pressing process. Thereby playing a certain limiting role on the center sleeve 141, preventing the position of the center sleeve 141 from being offset during the pressing process of the bushing unit 14, and ensuring the accuracy of the pressing position.

[0048] This embodiment discloses a method for installing a connecting rod assembly 01. The method for installing a connecting rod assembly 01 can be applied to the connecting rod assembly 01 installation system of any of the above embodiments. The method for installing a connecting rod assembly 01 can include steps S10 to S40. Each step is described in detail as follows:

[0049] In step S10, based on the press-fitting requirements of the connecting rod assembly 01, the connecting rod assembly 01 installation system can enter the first press-fitting state. The first press-fitting state can include that the rod body 11 and the first sleeve unit 12 are respectively abutted against the positioning assembly 03, the bushing unit 14 can be arranged in the first guide ring 421, one end of the outer sleeve 143 can abut against the inner circumferential wall of the second guide ring 422, and the pressure head 4113 can abut against one end of the outer sleeve 143, so that the pressure head 4113 can provide a press-fitting force to the bushing unit 14 assembly through the outer sleeve 143. The pressure head 4113 can be spaced apart from the inner circumferential wall of the first guide ring 421.

[0050] Step S20, based on the connecting rod assembly 01 installation system entering the first pressing state, the pressing head 4113 can move along the central axis of the first guide unit 42 toward the direction close to the second guide ring 422, so that the pressing head 4113 can continue to press the bearing assembly.

[0051] Step S30, based on the pressure head 4113 moving along the central axis of the first guide unit 42 toward the direction close to the second guide ring 422, the connecting rod assembly 01 installation system switches to the second pressing state. The second pressing state includes the pressure head 4113 abutting against the inner peripheral wall of the second guide ring 422, and the elastic sheet 4112 is spaced apart from the first guide ring 421 and the second guide ring 422 to prevent the elastic sheet 4112 from contacting with the first guide ring 421 and / or the second guide ring 422 to generate friction and affect the pressing of the bushing unit 14. The shrinkage groove 144 is closed, so that the bushing unit 14 can be pressed into the first sleeve unit 12.

[0052] Step S40, based on the connecting rod assembly 01 installation system switching to the second pressing state, the pressing head 4113 can press the bushing unit 14 to the installation position of the connecting rod assembly 01. The installation position includes the inner peripheral wall of the first sleeve unit 12 abutting against the outer peripheral wall of the outer sleeve 143.

[0053] In this embodiment, the installation position in step S40 may also include a symmetry plane in the opening direction of the contraction groove 144 that is perpendicular to the axis in the length direction of the rod body 11, thereby preventing the position of the bushing unit 14 close to the contraction groove 144 from being subjected to a large centripetal force or centrifugal force, thereby making the bushing unit 14 easily damaged and affecting the service life of the bushing unit 14.

[0054] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A connecting rod assembly installation system, characterized in that: The connecting rod assembly mounting system includes: Base assembly; A positioning assembly, the positioning assembly is detachably connected to the base assembly; A pressing assembly, wherein the pressing assembly comprises a pressing unit and a first guide unit; the pressing unit comprises a pressing module and a third driving unit; the pressing module comprises a pressing seat, an elastic sheet and a pressing head; the third driving unit is detachably connected to the pressing seat to drive the pressing module to move; one end of the elastic sheet is fixedly connected to the pressing seat, and the other end is fixedly connected to the pressing head; a plurality of elastic sheets are arranged at intervals along the circumferential direction of the pressing seat axis; one pressing head is arranged correspondingly to one elastic sheet; two adjacent pressing heads are arranged at intervals; the diameter of the outer contour circles of the plurality of pressing heads is greater than the diameter of the outer contour circles of the plurality of elastic sheets; the first guiding unit comprises a first guiding ring, a second guiding ring and a fourth driving unit; the first guiding ring is fixedly connected to the second guiding ring; the second guiding ring is arranged on the side of the first guiding ring away from the pressing unit; the fourth driving unit is detachably connected to the first guiding ring and / or the second guiding ring; the diameter of the first guiding ring is equal to the maximum diameter of the second guiding ring; the diameter of the second guiding ring gradually decreases from one end close to the first guiding ring to the other end; A connecting rod assembly, the connecting rod assembly comprising a rod body, a first sleeve unit, and a bushing unit; the rod body is fixedly connected to the first sleeve unit; the bushing unit comprises a center sleeve, an elastic part, an outer sleeve, and a shrinkage groove; the elastic part is sleeved on the outer circumference of the center sleeve, and the elastic part is fixedly connected to the center sleeve; the outer sleeve is sleeved on the outer circumference of the elastic part, and the elastic part is fixedly connected to the outer sleeve; the shrinkage groove extends from the outer wall of the outer sleeve toward the center sleeve to the inside of the elastic part; The connecting rod assembly installation system also includes a first pressing state and a second pressing state; the first pressing state includes the rod body and the first sleeve unit respectively abutting against the positioning assembly, the sleeve unit is arranged in the first guide ring, one end of the outer sleeve abuts against the inner circumferential wall of the second guide ring, the pressure head abuts against one end of the outer sleeve, and the pressure head is spaced apart from the inner circumferential wall of the first guide ring; the second pressing state includes the pressure head abutting against the inner circumferential wall of the second guide ring, the elastic sheet is spaced apart from the first guide ring and the second guide ring, and the shrinkage groove is closed; The pressing module also includes a pressing groove; the pressing groove is formed by the pressing head being recessed from one end away from the elastic sheet toward the other end; the pressing groove includes a first wall and a second wall; one end of the first wall is fixedly connected to one end of the second wall; the first wall is arranged on a side of the pressing groove close to the outer contour of the pressing head; the second wall is arranged at the bottom of the pressing groove; the outer sleeve includes a straight section and a closing section; one end of the straight section is fixedly connected to one end of the closing section; the outer diameter of the closing section gradually decreases from one end close to the straight section to the other end; the first pressing state also includes the second wall abutting against one end of the outer sleeve, and the first wall abutting against the outer peripheral wall of the closing section.

2. A connecting rod assembly mounting system according to claim 1, characterized in that: One end of the second wall away from the first wall extends obliquely toward the elastic sheet.

3. A connecting rod assembly mounting system according to claim 2, characterized in that: An included angle between the second wall and the central axis of the pressing module is greater than or equal to an included angle between the inner circumferential wall of the second guide ring and the central axis of the first guide unit.

4. A connecting rod assembly mounting system according to claim 1, characterized in that: The diameter of the outer contour circle of one end of the plurality of elastic sheets close to the pressure head is greater than or equal to the diameter of the outer contour circle of the other end of the plurality of elastic sheets.

5. A connecting rod assembly mounting system according to claim 1, characterized in that: The first set unit includes a first upper set and a first lower set; one side of the first upper set is fixedly connected to one end of the rod body; one side of the first lower set is fixedly connected to one end of the rod body; the first upper set and the first lower set are spaced apart along the same central axis; the first upper set and the first lower set are both in an annular shape.

6. A connecting rod assembly mounting system according to claim 5, characterized in that: The positioning assembly includes a first support unit and a second support unit; the first support unit includes a first support block and a first driving part; the first driving part is drivingly connected to the first support block; the second support unit includes a second support block and a second driving part; the second driving part is drivingly connected to the second support block; the second pressing state also includes one side of the first support block and / or the second support block abutting against a side of the first upper sleeve close to the first lower sleeve, and the other side abutting against a side of the first lower sleeve close to the first upper sleeve.

7. A connecting rod assembly mounting system according to claim 1, characterized in that: The pressing assembly also includes a second guide unit; the second guide unit includes a guide column and a fifth driving part; the guide column is arranged adjacent to the side of the second guide ring away from the first guide ring; one end of the guide column is detachably connected to the fifth driving part; one end of the guide column away from the fifth driving part extends along the central axis of the second guide ring toward the direction close to the second guide ring; the second pressing state also includes one end of the guide column passing through the center hole of the center sleeve.

8. A connecting rod assembly installation method, the connecting rod assembly installation method being applied to a connecting rod assembly installation system as claimed in any one of claims 1 to 7, characterized in that: The connecting rod assembly installation method comprises: Step S10, based on the press-fitting requirement of the connecting rod assembly, the connecting rod assembly installation system enters a first press-fitting state; wherein the first press-fitting state includes the rod body and the first sleeve unit respectively abutting against the positioning assembly, the sleeve unit is arranged in the first guide ring, one end of the outer sleeve abuts against the inner circumferential wall of the second guide ring, the pressure head abuts against one end of the outer sleeve, and the pressure head is spaced apart from the inner circumferential wall of the first guide ring; Step S20, based on the connecting rod assembly installation system entering the first pressing state, the pressing head moves along the central axis of the first guide unit toward the direction close to the second guide ring; Step S30, based on the pressing head moving along the central axis of the first guide unit toward the direction close to the second guide ring, the connecting rod assembly installation system switches to a second pressing state; wherein the second pressing state includes the pressing head abutting against the inner peripheral wall of the second guide ring, the elastic sheet being spaced apart from the first guide ring and the second guide ring, and the shrinkage groove being closed; Step S40, based on the connecting rod assembly installation system switching to the second pressing state, the pressing head presses the bushing unit to the installation position of the connecting rod assembly; wherein the installation position includes the inner circumferential wall of the first set unit abutting against the outer circumferential wall of the outer sleeve.

9. A connecting rod assembly installation method according to claim 8, characterized in that: The installation position in step S40 also includes a symmetry plane in the opening direction of the contraction groove being perpendicular to the axis in the length direction of the rod body.

Images