Positioning and assembling device for crankshaft shock absorber

Abstract

The utility model relates to the technical field of engine assembly, and discloses a positioning and assembling device for a crankshaft shock absorber, which comprises a positioning assembly for positioning the crankshaft shock absorber and a grabbing assembly for grabbing the positioned crankshaft shock absorber, the positioning assembly comprises a positioning pin extending into a center hole of the crankshaft damper and a limiting pin extending into a limiting hole of the crankshaft damper, the grabbing assembly comprises a body, a mandrel arranged on the body and a fixing claw arranged on the body, and the fixing claw and the mandrel can move relative to the body. The fixing claw can abut against the end face, deviating from the body, of the crankshaft shock absorber, the mandrel can stretch into the center hole, then automatic assembling of the crankshaft shock absorber is achieved, the situation that the crankshaft shock absorber needs to be assembled manually is avoided, the situation that the assembling efficiency is low due to the fact that the labor intensity of assembling personnel is large is avoided, and the assembling efficiency of the crankshaft shock absorber is improved. Therefore, the assembling efficiency of the crankshaft shock absorber is improved, and the assembling cost of the crankshaft shock absorber is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of engine assembly, and specifically relates to a positioning and assembly device for a crankshaft damper. Background Art

[0002] The crankshaft damper is an engine component installed at the front end of the crankshaft to eliminate the torsional vibration of the crankshaft. It gradually consumes the torsional vibration energy of the crankshaft into friction inside the damper, thereby gradually reducing the amplitude.

[0003] When assembling the crankshaft shock absorber, the crankshaft shock absorber needs to cooperate with the crankshaft, and the crankshaft shock absorber also needs to be plugged into and matched with the locating pins on the crankshaft, which results in a high assembly accuracy of the crankshaft shock absorber, making the assembly of the crankshaft shock absorber more difficult. The existing automated assembly equipment cannot accurately adjust the crankshaft shock absorber, and can only be assembled manually. Due to the heavy weight of the crankshaft shock absorber, the assemblers are prone to fatigue, which leads to low assembly efficiency and high assembly cost of the crankshaft shock absorber. Utility Model Content

[0004] The present application provides a positioning and assembling device for a crankshaft damper, so as to improve the assembly efficiency of the crankshaft damper and reduce the assembly cost.

[0005] The technical solution adopted in this application is:

[0006] A positioning and assembly device for a crankshaft shock absorber comprises a positioning assembly for positioning the crankshaft shock absorber and a grabbing assembly for grabbing the positioned crankshaft shock absorber, the positioning assembly comprising a positioning pin extending into a center hole of the crankshaft shock absorber and a limit pin extending into a limit hole of the crankshaft shock absorber, the grabbing assembly comprising a main body, a core shaft arranged on the main body and a fixing claw arranged on the main body, the fixing claw and the core shaft both being able to move relative to the main body so that the fixing claw can be pressed against the end face of the crankshaft shock absorber facing away from the main body and the core shaft can extend into the center hole.

[0007] By adopting the above technical solution, when assembling the crankshaft shock absorber using the crankshaft shock absorber positioning and assembly device, the grabbing assembly is first connected to the manipulator, the positioning assembly is installed on the positioning workbench, and then the assembler places the crankshaft shock absorber on the positioning workbench so that the positioning pin extends into the center hole of the crankshaft shock absorber, and the limit pin extends into the limit hole of the crankshaft shock absorber to complete the positioning of the crankshaft shock absorber. Then the manipulator drives the grabbing assembly to move so that the core shaft contacts the positioning pin, that is, the core shaft is coaxial with the center hole of the crankshaft shock absorber, and then the fixing claw moves and presses against the crankshaft shock absorber away from the center hole. The end face of the body, and then the manipulator drives the grabbing assembly to rise, and the crankshaft shock absorber rises accordingly under the action of the fixed claw, so that the locating pin and the limit pin are gradually separated from the crankshaft shock absorber, and the core shaft gradually extends into the center hole of the crankshaft shock absorber, and then the grabbing assembly drives the crankshaft shock absorber to move to the required assembly position under the action of the manipulator, so that the core shaft contacts the crankshaft, and then the grabbing assembly applies pressure to the crankshaft shock absorber in the direction of the crankshaft, the core shaft and the crankshaft remain relatively still, the crankshaft shock absorber and the core shaft move relative to each other and move onto the crankshaft, and then the crankshaft shock absorber can be fixed.

[0008] The crankshaft shock absorber positioning and assembly device used in the present application realizes automatic assembly of the crankshaft shock absorber, avoiding the need for manual assembly, thereby avoiding the low assembly efficiency due to the high labor intensity of the assemblers, thereby improving the assembly efficiency of the crankshaft shock absorber and reducing the assembly cost of the crankshaft shock absorber.

[0009] Optionally, the locating pin has a locating hole, the core shaft has a locating section extending into the locating hole and a limiting section extending into the center hole of the crankshaft shock absorber, the diameter of the locating section is smaller than the diameter of the limiting section, and the diameter of the limiting section is equal to the diameter of the locating pin.

[0010] By adopting the above technical solution, when the grasping assembly grasps the positioned crankshaft shock absorber, the positioning section extends into the positioning hole to realize the positioning of the core shaft, and then the circumferential surface of the limiting section is flush with the circumferential surface of the positioning pin to ensure the smooth grasping of the crankshaft shock absorber by the grasping assembly.

[0011] Optionally, the main body is provided with an elastic member acting on the limiting section, and when the fixing claw is pressed against the end surface of the crankshaft shock absorber away from the main body and the limiting section is separated from the center hole of the crankshaft shock absorber, the elastic member is in a compressed state.

[0012] By adopting the above technical solution, when grabbing the positioned crankshaft shock absorber, the positioning section extends into the positioning hole, and the elastic member is in a compressed state. After the fixed claw contacts the end face of the crankshaft shock absorber away from the main body, the grabbing assembly moves upward under the action of the manipulator. At this time, the elastic member pushes the core shaft to keep the core shaft stationary, and then the limiting section gradually extends into the center hole of the crankshaft shock absorber to position the crankshaft shock absorber. The setting of the elastic member increases the connection stability between the core shaft and the crankshaft shock absorber, thereby avoiding the relative movement of the crankshaft shock absorber and the grabbing assembly, so as to ensure the assembly efficiency of the crankshaft shock absorber.

[0013] Optionally, the core shaft further has a connecting section penetrating the body, and the elastic member is sleeved on the outside of the connecting section.

[0014] By adopting the above technical solution, when the elastic part is deformed, the connecting section guides the elastic part to increase the elastic effect of the elastic part, thereby further ensuring the connection stability between the limiting section and the crankshaft shock absorber. At the same time, the connecting section can also guide itself to increase the connection stability between the core shaft and the main body.

[0015] Optionally, the connecting section has a stop portion capable of cooperating with the main body stopper to limit the movement stroke of the connecting section.

[0016] By adopting the above technical solution, after the core shaft is separated from the positioning shaft, the core shaft extends into the center hole shaft of the crankshaft shock absorber under the action of the elastic member. At this time, the stopper part conflicts with the main body, and then the stopper part cooperates with the main body stop to limit the movement stroke of the core shaft, avoiding the separation of the core shaft from the main body, thereby increasing the connection stability between the core shaft and the main body, so as to increase the positioning effect of the core shaft on the crankshaft shock absorber.

[0017] Optionally, the limiting section is provided with an annular groove, and the positioning pin is extended with an annular rib capable of extending into the annular groove.

[0018] By adopting the above technical solution, after the core shaft is aligned with the locating pin, the locating section extends into the locating hole and the annular rib extends into the annular groove, so as to further increase the connection stability between the core shaft and the locating pin, thereby further ensuring the smoothness of the crankshaft shock absorber moving from the locating pin to the core shaft; at the same time, the setting of the annular rib can also guide the crankshaft shock absorber, so as to achieve the effect of facilitating the crankshaft shock absorber to be sleeved on the outside of the locating pin, so as to further improve the assembly efficiency of the crankshaft shock absorber.

[0019] Optionally, a base is provided at the bottom of the positioning pin, and the limiting pin is plugged into the base.

[0020] By adopting the above technical solution, since the limit pin is inserted into the base, the worn limit pin can be replaced to increase the service life of the positioning and assembly device for the crankshaft shock absorber. At the same time, the base can contact the end face of the crankshaft shock absorber away from the main body so that the base supports the crankshaft shock absorber to increase the stability of the crankshaft shock absorber. In addition, the base can also raise the height of the positioning pin so that the grasping assembly can grasp the crankshaft shock absorber.

[0021] Optionally, a plurality of the fixing claws are arranged along the circumference of the crankshaft shock absorber, and the main body is provided with a driving member for driving the fixing claws to move.

[0022] By adopting the above technical solution, multiple fixing claws are arranged along the circumference of the crankshaft shock absorber to increase the fixing points of the crankshaft shock absorber, thereby increasing the stability of grasping the crankshaft shock absorber. At the same time, the driving member is used to drive the fixing claw to move to realize the automatic movement of the fixing claw, thereby improving the automation level of the positioning and assembly device for the crankshaft shock absorber, so as to further reduce the labor workload of the assemblers, and further improve the assembly efficiency of the crankshaft shock absorber by the positioning and assembly device for the crankshaft shock absorber.

[0023] Optionally, the fixing claw has a connecting portion and a fixing portion arranged on the connecting portion, the fixing portion can be pressed against an end surface of the crankshaft shock absorber facing away from the main body, and the connecting portion is connected to the driving member.

[0024] By adopting the above technical solution, when the fixing claw grabs the crankshaft shock absorber, the connecting part drives the fixing part to move so that the fixing part is pressed against the end surface of the crankshaft shock absorber facing away from the main body, so as to increase the stability of the fixation of the crankshaft shock absorber, and at the same time simplify the structure of the fixing claw and reduce the production cost of the positioning and assembly device for the crankshaft shock absorber.

[0025] Optionally, the main body is provided with a support seat, the support seat can abut against the end surface of the crankshaft shock absorber facing the main body, and the core shaft is arranged on the support seat.

[0026] By adopting the above technical solution, after the core shaft is aligned with the positioning pin, the support seat contacts the end face of the crankshaft shock absorber facing the main body, so that when the grasping assembly drives the crankshaft shock absorber to move under the action of the manipulator, the support seat supports the crankshaft shock absorber, thereby increasing the fixing effect of the fixing claw on the crankshaft shock absorber, thereby increasing the stability of the crankshaft shock absorber.

[0027] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0028] 1. The positioning and assembly device for a crankshaft shock absorber in the present application comprises a positioning component for positioning the crankshaft shock absorber and a grabbing component for grabbing the positioned crankshaft shock absorber, the positioning component comprises a positioning pin extending into a center hole of the crankshaft shock absorber and a limit pin extending into a limit hole of the crankshaft shock absorber, the grabbing component comprises a main body, a core shaft arranged on the main body and a fixing claw arranged on the main body, the fixing claw and the core shaft can move relative to the main body so that the fixing claw can be pressed against the end surface of the crankshaft shock absorber away from the main body and the core shaft can be extended into the center hole, so as to realize automatic assembly of the crankshaft shock absorber, avoid the need for manual assembly, thereby avoiding the situation where the assembly efficiency is low due to the high labor intensity of the assemblers, thereby improving the assembly efficiency of the crankshaft shock absorber and reducing the assembly cost of the crankshaft shock absorber.

[0029] 2. The locating pin in the present application has a locating hole, the core shaft has a locating section extending into the locating hole and a limiting section extending into the center hole of the crankshaft shock absorber, the diameter of the locating section is smaller than the diameter of the limiting section, and the diameter of the limiting section is equal to the diameter of the locating pin, so as to realize the positioning of the core shaft, so that the circumferential surface of the limiting section is flush with the circumferential surface of the locating pin, so as to ensure the smoothness of the grasping assembly to grasp the crankshaft shock absorber.

[0030] 3. The main body in the present application is provided with an elastic part acting on the limiting section. When the fixing claw is pressed against the end face of the crankshaft shock absorber away from the main body and the limiting section is separated from the center hole of the crankshaft shock absorber, the elastic part is in a compressed state, thereby increasing the connection stability between the core shaft and the crankshaft shock absorber, thereby avoiding the relative movement between the crankshaft shock absorber and the grabbing assembly, so as to ensure the assembly efficiency of the crankshaft shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of the grabbing assembly described in one embodiment of the present application;

[0033] Figure 2 for Figure 1 A magnified view of the middle A area;

[0034] Figure 3 This is a schematic structural diagram of an assembly positioning device for a crankshaft shock absorber according to an embodiment of the present application;

[0035] Figure 4 for Figure 3 Enlarged view of the B area;

[0036] Figure 5This is a schematic diagram of the structure of the grab assembly when assembling the crankshaft damper to the crankshaft in one embodiment of the present application.

[0037] Reference numerals:

[0038] 1. Positioning assembly; 11. Positioning pin; 111. Positioning hole; 112. Annular rib; 113. Base; 12. Limiting pin; 2. Grasping assembly; 21. Main body; 211. Elastic member; 212. Driving member; 213. Support seat; 22. Mandrel; 221. Positioning section; 222. Limiting section; 223. Connecting section; 224. Annular groove; 225. Stopper; 23. Fixing claw; 3. Crankshaft; 4. Crankshaft shock absorber. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0041] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] Reference Figures 1 to 5 A positioning and assembly device for a crankshaft shock absorber includes a positioning component 1 for positioning the crankshaft shock absorber 4 and a grabbing component 2 for grabbing the positioned crankshaft shock absorber 4. The positioning component 1 includes a positioning pin 11 extending into the center hole of the crankshaft shock absorber 4 and a limiting pin 12 extending into the limiting hole of the crankshaft shock absorber 4. The grabbing component 2 includes a main body 21, a core shaft 22 arranged on the main body 21, and a fixing claw 23 arranged on the main body 21. The fixing claw 23 and the core shaft 22 can both move relative to the main body 21 so that the fixing claw 23 can be pressed against the end surface of the crankshaft shock absorber 4 away from the main body 21 and the core shaft 22 can extend into the center hole.

[0045] It should be noted that the existing crankshaft dampers 4 all have a center hole and a limiting hole located on one side of the center hole, and the end of the crankshaft 3 has an ejector hole.

[0046] When the crankshaft shock absorber 4 is assembled using the crankshaft shock absorber positioning and assembly device, the grabbing assembly 2 is first connected to the manipulator, the positioning assembly 1 is installed on the positioning workbench, and then the assembler places the crankshaft shock absorber 4 on the positioning workbench so that the positioning pin 11 extends into the center hole of the crankshaft shock absorber 4, and the limit pin 12 extends into the limit hole of the crankshaft shock absorber 4 to complete the positioning of the crankshaft shock absorber 4, and then the manipulator drives the grabbing assembly 2 to move so that the core shaft 22 contacts the positioning pin 11, that is, the core shaft 22 is coaxial with the center hole of the crankshaft shock absorber 4, and then the fixing claw 23 moves and presses against the end face of the crankshaft shock absorber 4 away from the body 21, and then the machine The manipulator drives the grabbing assembly 2 to rise, and the crankshaft shock absorber 4 rises along with it under the action of the fixing claw 23, so that the positioning pin 11 and the limit pin 12 are gradually separated from the crankshaft shock absorber 4, and the core shaft 22 gradually extends into the center hole of the crankshaft shock absorber 4, and then the grabbing assembly 2 drives the crankshaft shock absorber 4 to move to the required assembly position under the action of the manipulator, so that the core shaft 22 contacts the crankshaft 3, and then the grabbing assembly 2 applies pressure to the crankshaft shock absorber 4 in the direction of the crankshaft 3, the core shaft 22 and the crankshaft 3 remain relatively still, the crankshaft shock absorber 4 and the core shaft 22 move relative to each other and move onto the crankshaft 3, and then the crankshaft shock absorber 4 is fixed.

[0047] The crankshaft shock absorber positioning and assembly device used in the present application realizes the automatic assembly of the crankshaft shock absorber 4, avoiding the need for manual assembly thereof, thereby avoiding the situation where the assembly efficiency is low due to the high labor intensity of the assemblers, thereby improving the assembly efficiency of the crankshaft shock absorber 4 and reducing the assembly cost of the crankshaft shock absorber 4.

[0048] In addition, the crankshaft damper positioning and assembly device in the present application can also realize the installation of the synchronous wheel at the same time, so as to improve the assembly efficiency of the engine and further reduce the assembly cost.

[0049] The present application does not specifically limit the structure of the positioning pin 11. Preferably, refer to Figure 3 and Figure 4 The locating pin 11 has a locating hole 111, the core shaft 22 has a locating section 221 extending into the locating hole 111 and a limiting section 222 extending into the center hole of the crankshaft shock absorber 4, the diameter of the locating section 221 is smaller than the diameter of the limiting section 222, and the diameter of the limiting section 222 is equal to the diameter of the locating pin 11.

[0050] Specifically, the positioning hole 111 is located at the end of the positioning pin 11. When the grabbing assembly 2 grabs the positioned crankshaft damper 4, the positioning section 221 extends into the positioning hole 111 to achieve the positioning of the mandrel 22, and then the circumference of the limiting section 222 is flush with the circumference of the positioning pin 11 to ensure the smoothness of the grabbing assembly 2 in grabbing the crankshaft damper 4. At the same time, when the grabbing assembly 2 assembles the crankshaft damper 4, the positioning section 221 can also extend into the ejector hole at the end of the crankshaft 3 to achieve accurate positioning of the grabbing assembly 2, thereby ensuring the smoothness of the crankshaft damper 4 moving from the mandrel 22 to the crankshaft 3, and further improving the assembly efficiency of the crankshaft damper 4.

[0051] In a preferred embodiment, referring to Figure 3 and Figure 5 The main body 21 is provided with an elastic member 211 acting on the limiting section 222. When the fixing claw 23 is pressed against the end surface of the crankshaft shock absorber 4 away from the main body 21 and the limiting section 222 is separated from the center hole of the crankshaft shock absorber 4, the elastic member 211 is in a compressed state.

[0052] When grabbing the positioned crankshaft shock absorber 4, the positioning section 221 extends into the positioning hole 111, and the elastic member 211 is in a compressed state. After the fixing claw 23 contacts the end face of the crankshaft shock absorber 4 away from the main body 21, the grabbing assembly 2 moves upward under the action of the manipulator. At this time, the elastic member 211 pushes the core shaft 22 to keep the core shaft 22 in a stationary state, and then the limiting section 222 gradually extends into the center hole of the crankshaft shock absorber 4 to position the crankshaft shock absorber 4. The setting of the elastic member 211 increases the connection stability between the core shaft 22 and the crankshaft shock absorber 4, thereby avoiding the relative movement between the crankshaft shock absorber 4 and the grabbing assembly 2 to ensure the assembly efficiency of the crankshaft shock absorber 4. At the same time, after the grabbing assembly 2 moves the crankshaft shock absorber 4 to the end of the crankshaft 3, the positioning section 221 extends into the ejector hole at the end of the crankshaft 3, and the grabbing assembly 2 continues to move to make the core shaft 22 and the body 21 move relative to each other, so that the limiting section 222 is gradually separated from the center hole of the crankshaft shock absorber 4, and the crankshaft shock absorber 4 is gradually sleeved on the end of the crankshaft shock absorber 4, thereby completing the assembly of the crankshaft shock absorber 4.

[0053] The present application does not specifically limit the structure of the elastic member 211. Preferably, refer to Figure 3 and Figure 5 The elastic member 211 is a spring to ensure the elastic effect on the limiting section 222, thereby increasing the connection stability between the limiting section 222 and the central hole of the crankshaft shock absorber 4. In other implementation examples, the elastic member 211 can also be an elastic column of an annular structure or other elastic annular structures.

[0054] Further, see Figure 3 , Figure 4 and Figure 5 The core shaft 22 also has a connecting section 223 that penetrates the body 21 , and the elastic member 211 is sleeved on the outside of the connecting section 223 .

[0055] Specifically, the connecting section 223 is located at one end of the limiting section 222 away from the positioning section 221. When the elastic member 211 is deformed, the connecting section 223 guides the elastic member 211 to increase the elastic effect of the elastic member 211, thereby further ensuring the connection stability between the limiting section 222 and the crankshaft shock absorber 4. At the same time, the connecting section 223 can also guide itself to increase the connection stability between the core shaft 22 and the main body 21.

[0056] Further, refer to Figure 3 The connecting section 223 has a stop portion 225 that can cooperate with the main body 21 to limit the movement range of the connecting section 223.

[0057] Specifically, the stop portion 225 is located on the side of the main body 21 away from the crankshaft shock absorber 4, so that the stop portion 225 can contact the end surface of the main body 21 away from the crankshaft shock absorber 4 to limit the movement stroke of the core shaft 22, avoid the separation of the core shaft 22 and the main body 21, and then increase the connection stability between the core shaft 22 and the main body 21, so as to increase the positioning effect of the core shaft 22 on the crankshaft shock absorber 4.

[0058] The present application does not specifically limit the structure of the stopper 225. Preferably, refer to Figure 3 The stopper 225 is a bolt threadedly connected to the end of the connecting section 223, and the circumference of the bolt head protrudes from the circumference of the connecting section 223, so as to facilitate the assembly of the crankshaft shock absorber positioning assembly device. In other implementation examples, the stopper 225 can also be a block structure arranged on the circumference of the connecting section 223.

[0059] Further, see Figure 4 The limiting section 222 is provided with an annular groove 224 , and the positioning pin 11 is extended with an annular rib 112 that can extend into the annular groove 224 .

[0060] After aligning the core shaft 22 with the locating pin 11, the locating section 221 extends into the locating hole 111, and the annular rib 112 extends into the annular groove 224, so as to further increase the connection stability between the core shaft 22 and the locating pin 11, thereby further ensuring the smoothness of the movement of the crankshaft shock absorber 4 from the locating pin 11 to the core shaft 22; at the same time, the setting of the annular rib 112 can also guide the crankshaft shock absorber 4, so as to achieve the effect of facilitating the crankshaft shock absorber 4 to be mounted on the outside of the locating pin 11, so as to further improve the assembly efficiency of the crankshaft shock absorber 4.

[0061] In other embodiments, the core shaft 22 and the positioning section 221 may also be eliminated.

[0062] In a preferred embodiment, referring to Figure 3 A base 113 is provided at the bottom of the positioning pin 11 , and the limiting pin 12 is plugged into the base 113 .

[0063] Since the stop pin 12 is plugged into the base 113, the worn stop pin 12 can be replaced to increase the service life of the positioning assembly device for the crankshaft damper. At the same time, the base 113 can contact the end surface of the crankshaft damper 4 away from the body 21, so that the base 113 supports the crankshaft damper 4 to increase the stability of the crankshaft damper 4. In addition, the base 113 can also raise the height of the positioning pin 11 so that the grabbing assembly 2 can grab the crankshaft damper 4. At the same time, different stop pins 12 can be installed to achieve the positioning of different crankshaft dampers 4, so as to increase the flexibility of the positioning assembly device for the crankshaft damper.

[0064] In a preferred embodiment, referring to Figure 1 A plurality of fixing claws 23 are arranged along the circumference of the crankshaft damper 4 , and the body 21 is provided with a driving member 212 for driving the fixing claws 23 to move.

[0065] A plurality of fixing claws 23 are arranged along the circumference of the crankshaft shock absorber 4 to increase the fixing points of the crankshaft shock absorber 4, thereby increasing the stability of grasping the crankshaft shock absorber 4. At the same time, the driving member 212 is used to drive the fixing claws 23 to move, so as to realize the automatic movement of the fixing claws 23, thereby improving the automation level of the positioning and assembly device for the crankshaft shock absorber, further reducing the labor of the assemblers, and further improving the assembly efficiency of the crankshaft shock absorber 4 by the positioning and assembly device for the crankshaft shock absorber.

[0066] In a preferred embodiment, the fixing claw 23 has a connecting portion and a fixing portion arranged on the connecting portion, the fixing portion can be pressed against the end surface of the crankshaft damper 4 facing away from the body 21 , and the connecting portion is connected to the driving member 212 .

[0067] When the fixing claw 23 grabs the crankshaft shock absorber 4, the connecting part drives the fixing part to move so that the fixing part is pressed against the end surface of the crankshaft shock absorber 4 away from the main body 21, so as to increase the stability of fixing the crankshaft shock absorber 4. At the same time, the structure of the fixing claw 23 is simplified, and the production cost of the positioning and assembly device for the crankshaft shock absorber is reduced.

[0068] Better, refer to Figure 1There are two driving members 212, and four fixing claws 23 are provided corresponding to the two driving members 212, that is, every two fixing claws 23 are driven by one driving member 212. When the driving member 212 is working, the two fixing claws 23 move in a direction approaching each other to press against the end surface of the crankshaft damper 4 away from the main body 21.

[0069] The present application does not specifically limit the structure of the connecting part and the fixing part. Preferably, refer to Figure 1 and Figure 2 The connecting portion is a rod-shaped structure, and the fixing portion is a groove-shaped structure provided on the rod-shaped structure, so that the groove wall of the groove-shaped structure can be pressed against the end surface of the crankshaft shock absorber 4 away from the body 21, thereby ensuring the structural strength of the fixing claw 23. In other embodiments, the connecting portion and the fixing portion can also form an L-shaped structure together.

[0070] The present application does not specifically limit the structure of the driving member 212. Preferably, the driving member 212 is a double-headed cylinder to ensure the stability of the movement of the fixed claw 23 and reduce the production cost of the positioning assembly device for the crankshaft shock absorber, and the double-headed cylinder has an adjusting nut to adjust the stroke of the fixed claw 23. In other embodiments, the driving member 212 can also be a combination of a motor and a transmission structure.

[0071] In a preferred embodiment, referring to Figure 3 The main body 21 is provided with a support seat 213 , the support seat 213 can resist the end surface of the crankshaft shock absorber 4 facing the main body 21 , and the core shaft 22 is arranged on the support seat 213 .

[0072] After the core shaft 22 is aligned with the positioning pin 11, the support seat 213 contacts the end face of the crankshaft shock absorber 4 facing the main body 21, so that when the grasping assembly 2 drives the crankshaft shock absorber 4 to move under the action of the manipulator, the support seat 213 supports the crankshaft shock absorber 4, so as to increase the fixing effect of the fixing claw 23 on the crankshaft shock absorber 4, thereby increasing the stability of the crankshaft shock absorber 4.

[0073] The present application does not specifically limit the structure of the support seat 213. Preferably, the support seat 213 includes a seat body provided on the main body 21 and a plurality of support rods provided on the seat body. The end surfaces of the plurality of support rods facing away from the main body 21 together form a support surface for supporting the crankshaft shock absorber 4. The plurality of support rods can be adjusted relative to the seat body, that is, the support rods can move relative to the seat body along their own axial direction so that the support surface can be adjusted, thereby enabling the installation of various types of crankshaft shock absorbers 4. In other embodiments, the support seat 213 can also be a block structure provided on the main body 21.

[0074] The present application does not make any specific limitation on the structure of the main body 21. Preferably, the main body 21 has a first section and a second section bent from the first section, the core shaft 22 and the fixing claw 23 are both arranged on the inner side of the first section, and the second section is used to connect with the manipulator to facilitate the installation of the crankshaft shock absorber positioning assembly device on the manipulator.

[0075] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0076] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0077] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A positioning and assembly device for a crankshaft damper, characterized in that: The invention comprises a positioning assembly (1) for positioning a crankshaft damper (4) and a gripping assembly (2) for gripping the positioned crankshaft damper (4), wherein the positioning assembly (1) comprises a positioning pin (11) extending into a central hole of the crankshaft damper (4) and a limiting pin (12) extending into a limiting hole of the crankshaft damper (4), and the gripping assembly (2) comprises a body (21), a core shaft (22) arranged on the body (21), and a fixing claw (23) arranged on the body (21), wherein the fixing claw (23) and the core shaft (22) are both movable relative to the body (21), so that the fixing claw (23) can be pressed against an end face of the crankshaft damper (4) facing away from the body (21) and the core shaft (22) can be extended into the central hole.

2. A positioning and assembling device for a crankshaft shock absorber according to claim 1, characterized in that: The positioning pin (11) has a positioning hole (111), the core shaft (22) has a positioning section (221) extending into the positioning hole (111) and a limiting section (222) extending into the central hole of the crankshaft shock absorber (4), the diameter of the positioning section (221) is smaller than the diameter of the limiting section (222), and the diameter of the limiting section (222) is equal to the diameter of the positioning pin (11).

3. A positioning and assembling device for a crankshaft shock absorber according to claim 2, characterized in that: The body (21) is provided with an elastic member (211) acting on the limiting section (222); when the fixing claw (23) is pressed against the end surface of the crankshaft damper (4) facing away from the body (21) and the limiting section (222) is separated from the center hole of the crankshaft damper (4), the elastic member (211) is in a compressed state.

4. A positioning and assembling device for a crankshaft shock absorber according to claim 3, characterized in that: The core shaft (22) further comprises a connecting section (223) penetrating the body (21), and the elastic member (211) is sleeved on the outside of the connecting section (223).

5. A positioning and assembling device for a crankshaft shock absorber according to claim 4, characterized in that: The connecting section (223) has a stop portion (225) capable of cooperating with the main body (21) to limit the movement stroke of the connecting section (223).

6. A positioning and assembling device for a crankshaft damper according to claim 2, characterized in that: The limiting section (222) is provided with an annular groove (224), and the positioning pin (11) is extended with an annular rib (112) capable of extending into the annular groove (224).

7. A positioning and assembling device for a crankshaft damper according to claim 1, characterized in that: A base (113) is provided at the bottom of the positioning pin (11), and the limiting pin (12) is plugged into the base (113).

8. A positioning and assembling device for a crankshaft damper according to claim 1, characterized in that: A plurality of the fixing claws (23) are arranged along the circumference of the crankshaft damper (4), and the body (21) is provided with a driving member (212) for driving the fixing claws (23) to move.

9. A positioning and assembling device for a crankshaft damper according to claim 8, characterized in that: The fixing claw (23) comprises a connecting portion and a fixing portion arranged on the connecting portion, the fixing portion being capable of pressing against an end surface of the crankshaft damper (4) facing away from the body (21), and the connecting portion being connected to the driving member (212).

10. A positioning and assembling device for a crankshaft damper according to claim 1, characterized in that: The body (21) is provided with a support seat (213), the support seat (213) is capable of contacting the end surface of the crankshaft damper (4) facing the body (21), and the core shaft (22) is arranged on the support seat (213).

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