Swing arm bushing extrusion equipment

Abstract

The invention relates to the technical field of bush press fitting, in particular to swing arm bush extrusion equipment which comprises a fixing device and an extrusion device, the fixing device can fix a seat body and a first arm body, the extrusion device comprises a pressing head structure and a first driving assembly, and the pressing head structure comprises a pressing head part; the pressing head structure is arranged between the first arm ring and the second arm ring and faces the second arm ring, the pressing head part can abut against the end, facing the pressing head part, of the outer ring body, the lining unit extends in the first direction, the pressing head part extends in the second direction, and the second direction deflects towards the base body in the horizontal direction relative to the first direction; the first driving assembly can drive the pressing head part to move in the second direction and push the lining unit to be disengaged from the second armlet. Therefore, the problems that the bushing of the swing arm is difficult to disassemble, the swing arm is easy to damage and the efficiency is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bushing press-fitting, and in particular to a swing arm bushing extrusion device. Background Art

[0002] The swing arm is an important component of the vehicle suspension system. A bushing is provided at the end of the swing arm where it is connected to other components. The bushing includes an elastomer made of flexible rubber material. When the vehicle encounters road impact, the bushing acts as a flexible connection to reduce wear between metal parts, absorb vibrations and reduce noise.

[0003] However, during the manufacturing process of the swing arm, the bushing needs to be inserted into the pre-set arm ring, and there is a large force between the bushing and the arm ring to prevent the bushing from falling out. However, during the installation process, the bushing may be damaged due to improper operation or other circumstances, or when the swing arm is repaired or replaced, the damaged bushing needs to be removed. However, due to the presence of the elastomer inside it, most parts of the bushing are unable to withstand the pushing force during disassembly, resulting in structural damage to the bushing. The existing disassembly method is prone to damage to the bushing, arm ring and other parts, which can easily cause deformation of the swing arm itself and lead to further scrapping of parts. At the same time, the efficiency is low. Summary of the Invention

[0004] In order to solve the problem that the bushing of the swing arm is difficult to disassemble, the swing arm is easily damaged and the efficiency is low, the present invention provides a swing arm bushing extrusion device, comprising: the swing arm comprises a seat body and a first arm body and a second arm body arranged on the seat body, the end of the first arm body is provided with a first arm ring, the end of the second arm body is provided with a second arm ring, a bushing unit is provided in the first arm ring and the second arm ring, the bushing unit comprises an outer ring body attached to the inner side walls of the first arm ring and the second arm ring, the bushing unit also comprises an inner ring body coaxially arranged with the outer ring body, and the center of the inner ring body is provided with an inner ring hole; the swing arm bushing extrusion device comprises A fixing device and an extrusion device, the fixing device can fix the base body and the first arm body, the extrusion device includes a pressure head structure and a first driving component, the pressure head structure includes a pressure head portion, the pressure head structure is arranged between the first arm ring and the second arm ring and is arranged toward the second arm ring, the pressure head portion can abut against one end of the outer ring body toward the pressure head portion, the bushing unit extends along the first direction, the pressure head portion extends along the second direction, the second direction is deflected horizontally relative to the first direction toward the base body, the first driving component can drive the pressure head portion to move along the second direction and push the bushing unit out of the second arm ring.

[0005] In some embodiments, the extrusion device also includes a guide unit, which includes a fixed guide rod and a second drive assembly. The guide rod is arranged on the side of the second arm ring away from the pressure head structure. The end of the guide rod can be inserted into the inner ring hole under the drive of the second drive assembly, and the extrusion device can push the sleeve unit to gradually be mounted on the guide rod.

[0006] In some embodiments, the guide rod extends along a third direction, the third direction and the first direction are located in the same horizontal plane, and the third direction is deflected toward the seat body relative to the first direction.

[0007] In some embodiments, the extrusion device further includes a correction unit, which includes a correction structure. The correction structure is disposed on the outside of the second arm body, and the correction structure can abut against the outer side surface of the second arm body close to the second arm ring.

[0008] In some embodiments, the extrusion device also includes a second positioning unit, which is arranged corresponding to the second arm ring. The second positioning unit includes a second positioning block, and the second positioning block is provided with a second arc-shaped groove. The outer peripheral surface of the second arm ring away from the seat body can abut against the arc-shaped groove.

[0009] In some embodiments, the second positioning unit further includes a third driving assembly, which can drive the positioning block to abut against and push the second arm ring.

[0010] In some embodiments, the fixing device includes an arm positioning assembly and a base positioning assembly, the arm positioning assembly is used to clamp and fix the first arm and the first arm ring, and the base positioning assembly is used to clamp and fix the base.

[0011] In some embodiments, the arm positioning assembly includes an inner positioning unit and an outer positioning unit. The inner positioning unit includes an inner positioning body and an inner positioning column. The inner positioning body can abut against the inner end of the first arm ring. The inner positioning column is arranged on the inner positioning body and extends along the central axis of the first arm ring. The inner positioning column can extend into the inner ring hole; the outer positioning unit includes an outer positioning body and a fourth driving assembly. The outer positioning body can abut against the edge of the outer end of the bushing unit. The fourth driving assembly can drive the outer positioning body away from or close to the bushing unit and apply a force toward the bushing unit.

[0012] In some embodiments, the arm positioning assembly also includes a first positioning unit, the first positioning unit includes a first positioning block, the first positioning block is arranged on the side of the first arm ring away from the seat body, the first positioning block is provided with a first arc-shaped groove, and the outer peripheral surface of the first arm ring can abut against the first arc-shaped groove; the fixing device also includes a seat support seat, the seat support seat is arranged on the lower side of the seat body and can support the seat body.

[0013] In some embodiments, the fixing device also includes a support block assembly and a clamping assembly, the support block assembly includes a first support block and a second support block, the first support block is arranged on the lower side of the first arm ring and can support the first arm ring, the second support block is arranged on the lower side of the second arm ring and can support the second arm ring; the clamping assembly includes at least one clamping arm and can apply a downward clamping force to the swing arm.

[0014] In order to solve the problem that the bushing of the swing arm is difficult to disassemble, which easily damages the swing arm and has low efficiency, the present invention has the following advantages: In the above technical solution, the swing arm that needs to be disassembled is fixed by a fixing device, which mainly fixes the seat body and the first arm body, and the bushing unit in the second arm body needs to be disassembled. The pressure head is driven by the first driving component to push the outer ring body in the bushing unit. Since the outer ring body is mainly in contact with the inner circumference of the second arm ring and bears the friction force, the bushing unit can be disassembled by pushing the outer ring body. At the same time, since no force is applied to the elastomer and the like therein, damage to the bushing unit can be effectively prevented. In the process of the pressure head pushing the outer ring body, since it is necessary to overcome the friction between the outer ring body and the inner circumference of the second arm ring, a large force is required to push it. However, due to the effect of friction, the second arm ring will be driven by the inner bushing unit and will undergo a slight elastic deformation in the direction away from the first arm body. If the extension direction of the pressure head is consistent with the axial direction of the bushing unit in the initial state, as the pushing progresses, the axis of the pressure head and the bushing unit will deviate due to the occurrence of elastic deformation. At this time, as the pressure head gradually extends into the first arm ring, the pressure head will squeeze the first arm ring. The inner wall of the first arm ring is also squeezed more severely as the extended portion increases, and the second direction in which the pressure head extends is deflected horizontally toward the direction of the seat relative to the first direction in which the bushing unit extends. Although there will be slight uneven force in the initial application of force, when the force rises to overcome the friction force, the second arm ring is also elastically deformed under the push of the force. At this time, the axial direction of the bushing unit is the same as the extension direction of the pressure head, and the axis of the bushing unit and the pressure head are coincident. Then, during the pushing process, damage to the inner wall of the second arm ring can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a swing arm bushing extrusion device according to an embodiment is shown; Figure 2 A schematic structural diagram of a swing arm is shown; Figure 3 A partial cross-sectional structural diagram of a swing arm is shown; Figure 4 An enlarged schematic diagram of a partial structure of a swing arm bushing extrusion device according to an embodiment is shown; Figure 5 A schematic diagram showing the central axis of the pressing head, the bushing unit and the guide rod according to an embodiment is shown; Figure 6 A schematic top view of a swing arm bushing extrusion device according to an embodiment is shown; Figure 7 A schematic diagram of a lateral cross-sectional structure of a swing arm bushing extrusion device according to an embodiment is shown.

[0016] Reference numerals: 10-arm positioning assembly; 11-inner positioning unit; 111-inner positioning body; 13-first positioning unit; 131-first positioning block; 20-extrusion device; 211-pressing head structure; 2111-pressing head body; 2112-pressing head; 2113-avoidance ring; 2114-guide head; 212-first driving assembly; 2121-driver; 2122-slide rail; 2123-slider; 22-guide unit; 221-guide seat; 222-guide rod; 223-second driving assembly; 23-calibration Positive unit; 231-correction structure; 24-second positioning unit; 241-second positioning block; 242-second arc groove; 30-seat support seat; 40-swing arm; 41-arm seat unit; 411-seat body; 412-seat ring; 42-first arm unit; 421-first arm body; 422-first arm ring; 43-second arm unit; 431-second arm body; 432-second arm ring; 44-bushing unit; 441-outer ring body; 442-elastic body; 443-inner ring body; 444-inner ring hole; 51-pressing arm. DETAILED DESCRIPTION

[0017] 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 implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0018] As used herein, the term "including" and its variations 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." Terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships. For example, the term "on" may, in certain circumstances, be used to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" are to be interpreted broadly. 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 a direct connection, an indirect connection through an intermediate medium, or 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 or quantity of the indicated devices, elements, or components. Unless otherwise specified, "plurality" means two or more.

[0019] This embodiment discloses a swing arm bushing extrusion device, such as Figure 1-7As shown, the swing arm 40 includes a base 411 and a first arm body 421 and a second arm body 431 arranged on the base body 411, a first arm ring 422 is provided at the end of the first arm body 421, a second arm ring 432 is provided at the end of the second arm body 431, a bushing unit 44 is provided in the first arm ring 422 and the second arm ring 432, the bushing unit 44 includes an outer ring body 441 that fits on the inner side walls of the first arm ring 422 and the second arm ring 432, the bushing unit 44 also includes an inner ring body 443 coaxially arranged with the outer ring body 441, and an inner ring hole 444 is provided at the center of the inner ring body 443; the swing arm bushing extrusion device includes a fixing device and an extrusion device, and the fixing device can fix the base 411 And the first arm body 421, the extrusion device includes a pressure head structure 211 and a first drive component 212, the pressure head structure 211 includes a pressure head 2112, the pressure head structure 211 is arranged between the first arm ring 422 and the second arm ring 432 and is arranged toward the second arm ring 432, the pressure head 2112 can abut against one end of the outer ring body 441 toward the pressure head 2112, the bushing unit 44 extends along the first direction, the pressure head 2112 extends along the second direction, the second direction is deflected horizontally relative to the first direction toward the seat body 411, the first drive component 212 can drive the pressure head 2112 to move along the second direction and push the bushing unit 44 out of the second arm ring 432.

[0020] It should be noted that the first arm body 421, the second arm body 431, the first arm ring 422 and the second arm ring 432 are only for the convenience of description and reference, and are not used to limit this application to only being able to disassemble the bushing unit 44 in the second arm ring 432. The swing arm bushing extrusion equipment in this application can be applied to the disassembly of the bushing units 44 in both arm rings. The first direction and the second direction in the above technical solution are both directions in the initial state before the disassembly action is performed. The swing arm 40 is as shown in FIG. Figure 2 、 Figure 3As shown, it includes a first arm unit 42, a second arm unit 43 and an arm base unit 41, wherein the arm base unit 41 may include a base body 411 and a base ring 412, the first arm unit 42 and the second arm unit 43 have similar structures, the first arm unit 42 includes a first arm body 421 and a first arm ring 422 arranged at the end of the first arm body 421, the second arm unit 43 includes a second arm body 431 and a second arm ring 432 arranged at the end of the second arm body 431, the first arm ring 422 and the second arm ring 432 can be coaxially spaced, the bushing unit 44 is respectively arranged in the cylindrical first arm ring 422 and the second arm ring 432, the bushing unit 44 includes a coaxially arranged inner ring body 443, an outer ring body 444 and an outer ring body 445. The ring body 441 and the elastic body 442 arranged between the inner ring body 443 and the outer ring body 441, the elastic body 442 is made of rubber material, the outer ring body 441 fits the inner circumference of the first arm ring 422 or the second arm ring 432, and for the convenience of installation, the outer ring body 441 is provided with a flange structure for abutting against the outer end face of the first arm ring 422 or the second arm ring 432 to achieve the purpose of positioning, but it also makes the bushing unit 44 only able to be pushed out and removed from the first arm ring 422 or the second arm ring 432 in the opposite direction of the installation direction. At the same time, the flange structure also makes the outer end faces of the first arm ring 422 and the second arm ring 432 blocked and difficult to support, and when the bushing unit 44 is disassembled The outer ring 441 needs to be pushed because the friction between the bushing unit 44 and the first arm ring 422 or the second arm ring 432 is large. If the elastic body 442 or the inner ring 443 is pushed, the elastic body 442 may be torn, which may damage the bushing unit 44 and the outer ring 441 may still be unable to be disassembled. Therefore, it can only be disassembled by pushing the outer ring 441. However, the end surface area of ​​the outer ring 441 of the bushing unit 44 is small. In order to fully apply the force, in the above technical solution, the swing arm 40 to be disassembled is fixed by a fixing device, wherein the main fixing seat 411 and the first arm 421 are fixed, and the second arm 4 The bushing unit 44 in 31 needs to be removed, and the pressure head 2112 is driven by the first drive component 212 to push the outer ring body 441 in the bushing unit 44. Since the outer ring body 441 is mainly in contact with the inner circumference of the second arm ring 432 and bears the friction force, the bushing unit 44 can be removed by pushing the outer ring body 441. At the same time, since no force is applied to the elastomer 442 and the like, the bushing unit 44 can be effectively prevented from being damaged. The pressure head 2112 is required to be able to fit as fully as possible with the end face of the outer ring body 441. At this time, the pressure head 2112 will also fit to the inner circumference of the first arm ring 422 and the second arm ring 432 when pushing.

[0021] On this basis, since the outer side surface of the first arm ring 422 or the second arm ring 432 is blocked by the bushing unit 44, there is no limit here. Therefore, in the process of the pressure head 2112 pushing the outer ring body 441, since it is necessary to overcome the friction between the outer ring body 441 and the inner peripheral surface of the second arm ring 432, a larger force is required to push it. However, due to the effect of friction, the second arm ring 432 will undergo a slight elastic deformation in the direction away from the first arm body 421 under the drive of the inner bushing unit 44. If, when the extension direction of the pressure head 2112 is consistent with the axial direction of the bushing unit 44 when the force is applied, as the pushing progresses, due to the occurrence of elastic deformation, the axis of the pressure head 2112 and the bushing unit 44 will deviate. At this time, as the pressure head 2112 gradually extends into the first arm ring 422, the pressure head 2112 will squeeze the inner wall of the first arm ring 422, and as the extended part increases, the squeezing of the inner wall of the first arm ring 422 will also intensify. In the above-mentioned solution of the present application, Figure 5 As shown (A in the figure is the center axis of the pressure head 2112, and B is the center axis of the bushing unit 44. Figure 6 The same top-down perspective (the deflection angle is magnified in the figure for the convenience of explaining the deflection direction) deflects the second direction of extension of the pressure head 2112 horizontally toward the seat 411 relative to the first direction of extension of the bushing unit 44. Although slight uneven force will occur during the initial application of force, when the force rises to overcome the friction force, the second arm ring 432 will also undergo elastic deformation under the push of the force, making the axial direction of the bushing unit 44 the same as the extension direction of the pressure head 2112, and making the axis of the bushing unit 44 coincide with the axis of the pressure head 2112. Then, during the pushing process, damage to the inner side wall of the second arm ring 432 will be avoided. The angle between the second direction and the first direction is very small, which is sufficient to meet the offset caused by the elastic deformation.

[0022] The fixing device can be appropriately configured as needed. It is mainly used to fix and limit the swing arm 40. It mainly limits the first arm body 421, the first arm ring 422, and the base body 411 on the non-removable side. By fully limiting and fixing the above positions, the swing arm 40 can be effectively fixed as a whole. The pressure head structure 211 can also include a pressure head body 2111 disposed on the side of the pressure head 2112 away from the second arm ring 432. The pressure head body 2111 is also used to connect to the first drive assembly 212. The first drive assembly 212 can be a linear drive device such as a pneumatic cylinder or a hydraulic cylinder. The pressure head body 2111 and the pressure head 2112 have the same diameter and their total length is greater than the length of the second arm ring 432. When the pressure head body 2111 and the pressure head 2112 extend into the second arm ring 432, their sides will not scratch the inner wall of the second arm ring 432 due to structures such as sharp corners. At the same time, the pressure head structure 211 can also be provided with an avoidance ring 2113 and a guide head 2114. The avoidance ring 2113 is provided on the inner side of the pressure head 2112 to avoid the inner ring body 443 and the elastic body 442 of the bushing unit 44 to prevent them from being damaged by force. The guide head 2114 is provided at the center of the avoidance ring 2113 and corresponds to the inner ring hole 444 of the inner ring body 443. It can be inserted into the inner ring hole 444 to play a certain guiding role. Specifically, the first drive assembly 212 includes a driver 2121, a slide rail 2122 and a slider 2123. The driver 2121 can drive the slider 2123 to move along the slide rail 2122. The slide rail 2122 extends along the moving direction of the pressure head 2112. The pressure head structure 211 is fixedly provided on the slider 2123.

[0023] The pressure head portion 2112 may be an annular structure, and further, may be composed of a plurality of arc-shaped portions at intervals, i.e., forming a multi-petal structure. When the pressure head portion 2112 is to be reversely pulled out from the second arm ring 432, it can be slightly elastically deformed to adapt to the deflection between the first direction and the second direction, thereby ensuring smooth withdrawal without damaging the inner wall of the second arm ring 432.

[0024] As the bushing unit 44 is gradually pushed out of the second arm ring 432 by the pressing head 2112, the guidance and limitation of the bushing unit 44 by the second arm ring 432 gradually decreases. In order to prevent the bushing unit 44 from deviating relative to the second arm ring 432 due to the reduction of the guiding effect during the pushing process, Figure 1 、 Figure 4-6 As shown, the extrusion device also includes a guide unit 22, which includes a fixed guide rod 222 and a second drive assembly 223. The guide rod 222 is arranged on the side of the second arm ring 432 away from the pressure head structure 211. The end of the guide rod 222 can be inserted into the inner ring hole 444 under the drive of the second drive assembly 223, and the extrusion device can push the bushing unit 44 to gradually be mounted on the guide rod 222.

[0025] The guide rod 222 is fixedly arranged. As the bushing unit 44 is pushed by the pressing head 2112, it is gradually sleeved onto the guide rod 222, so that it is always guided by the second arm ring 432 and the guide rod 222 to move. In order to facilitate the installation of the swing arm 40, the second driving assembly 223 can drive the guide rod 222 to be inserted into the inner ring hole 444 of the bushing unit 44 after the swing arm 40 is fixed in place. The diameter of the guide rod 222 can match the diameter of the inner ring hole 444. The end of the guide rod 222 can be provided with a tapered guide portion to facilitate the insertion of the guide rod 222 into the inner ring hole 444. The provision of the guide rod 222 can also prevent the bushing unit 44 from being pushed out of the second arm ring 432 due to the thrust when it is removed from the second arm ring 432. The second drive assembly 223 can adopt an appropriate implementation method. Specifically, it can be a cylinder, a hydraulic cylinder or a drive assembly driven by an electric motor. In addition, it can also be a simpler rod body with a handle. The guide rod 222 can pass through the support plate and the guide rod 222 can be driven to move by pulling the handle.

[0026] Similar to the aforementioned pressure head 2112, since the central axis of the bushing unit 44 is deflected by the force, the bushing unit 44 and the guide rod 222 will be deflected relative to each other. Figure 5 As shown, the guide rod 222 extends along the third direction, the third direction and the first direction are located in the same horizontal plane, and the third direction is deflected relative to the first direction toward the seat body 411. Figure 5 As shown (B in the figure is the central axis of the bushing unit 44, C is the central axis of the guide rod 222, and the figure is Figure 6 The same top view angle is used, and the deflection angle is enlarged in the figure for the convenience of explaining the deflection direction). By utilizing the relative deflection between the third direction extending from the guide rod 222 and the first direction, the bushing unit 44 can be actually coaxial with the central axis of the guide rod 222 when disassembled.

[0027] Since the second arm 431 is a cantilever structure extending from the base 411, when the second arm ring 432 at the end is subjected to thrust, the second arm 431 will be elastically deformed at the same time, and the deformation will be aggravated by the length of the second arm 431. In order to prevent the second arm 431 and the second arm ring 432 from being deflected too much by the force, Figure 1 、 Figure 6 、 Figure 7 As shown, the extrusion device further includes a correction unit 23 , which includes a correction structure 231 . The correction structure 231 is disposed on the outside of the second arm body 431 , and the correction structure 231 can abut against the outer side surface of the second arm body 431 close to the second arm ring 432 .

[0028] When the second arm 431 deflects under the applied force, it abuts against the correction structure 231, preventing deformation. However, since the outer end surface of the second arm ring 432 is not provided with an abutment structure, slight elastic deformation and deflection will inevitably occur at the connection between the second arm ring 432 and the second arm 431. However, the provision of the correction structure 231 prevents deformation of the second arm 431 and reduces the deflection angle of the second arm ring 432. At the same time, the correction structure 231 also serves to position the second arm 431, allowing it to be accurately installed.

[0029] As an embodiment, in order to position and support the second arm ring 432, as shown in FIG. Figure 7 As shown, the extrusion device also includes a second positioning unit 24, which is arranged corresponding to the second arm ring 432. The second positioning unit 24 includes a second positioning block 241, and the second positioning block 241 is provided with a second arcuate groove 242. The outer peripheral surface of the second arm ring 432 facing away from the seat body 411 can abut within the arcuate groove. The second arcuate groove 242 can be configured to match the shape of the second arm ring 432. The second arm ring 432 abuts within the second arcuate groove 242. The outer peripheral surface of the second arm ring 432 facing the second arcuate groove 242 can abut, thereby stably positioning and supporting the second arm ring 432.

[0030] As the bushing unit 44 is gradually pushed out from the second arm ring 432, the contact area between it and the second arm ring 432 is gradually reduced, causing the force acting on the second arm ring 432 to gradually decrease. In particular, compared with the initial stage of pushing the bushing unit 44, when the bushing unit 44 is about to come out, the friction between it and the inner wall of the second arm ring 432 will also drop rapidly, causing the second arm ring 432 to return to the initial unstressed state under the action of the elastic force, causing the pressure head 2112 and the center axis of the bushing unit 44 to deflect again. In order to solve the above problem, the second positioning unit 24 also includes a third drive component, which can drive the positioning block to abut and push the second arm ring 432.

[0031] The third driving component can be used to drive the positioning block to move, so that it can push the second arm ring 432 to remain in the elastic deformation state under the maximum force, thereby ensuring that it is coaxial with the pressure head 2112, until the pressure head 2112 completes the pushing work and is pulled out from the second arm ring 432 in the opposite direction, and then drives the positioning block back to the initial position, and makes the second arm ring 432 return to the initial position.

[0032] As a specific implementation method, Figure 1 、 Figure 6As shown, the fixing device includes an arm positioning assembly 10 and a base 411 positioning assembly. The arm positioning assembly 10 is used to clamp and fix the first arm 421 and the first arm ring 422 , and the base 411 positioning assembly is used to clamp and fix the base 411 .

[0033] Specifically, if Figure 6 As shown, the arm positioning assembly 10 includes an inner positioning unit 11 and an outer positioning unit. The inner positioning unit 11 includes an inner positioning body 111 and an inner positioning post. The inner positioning body 111 can abut against the inner end of the first arm ring 422. The inner positioning post is provided on the inner positioning body 111 and extends along the central axis of the first arm ring 422. The inner positioning post can extend into the inner ring hole 444. The outer positioning unit includes an outer positioning body and a fourth driving component. The outer positioning body can abut against the edge of the outer end of the bushing unit 44 . The fourth driving component can drive the outer positioning body away from or close to the bushing unit 44 and apply a force toward the bushing unit 44 .

[0034] The first arm body 421 and the first arm ring 422 are clamped and fixed by means of the inner positioning unit 11 and the outer positioning unit (not shown in the figure), thereby preventing them from moving when the bushing unit 44 in the second arm ring 432 is removed. The inner positioning unit 11 can be provided with an inner positioning column and an inner positioning body 111. The inner positioning column penetrates into the inner ring hole 444 of the bushing unit 44, and the inner positioning body 111 abuts against the inner side surface of the first arm ring 422. At the same time, similar to the second arm ring 432, the outer side surface of the second arm ring 432 also has a portion that abuts and protrudes from the bushing unit 44. Therefore, in order to prevent the outer positioning body from damaging the bushing, the outer positioning body is provided to abut the outer edge of the bushing unit 44, that is, the flange structure of the outer ring body 441 of the bushing unit 44. During installation, the inner ring hole 444 of the bushing unit 44 in the first arm ring 422 is aligned with the inner positioning column and inserted, and then the outer positioning body is driven close to the bushing unit 44 by the fourth driving assembly to achieve a clamping effect.

[0035] At the same time, if Figure 6 As shown, the arm positioning assembly 10 also includes a first positioning unit 13, the first positioning unit 13 includes a first positioning block 131, the first positioning block 131 is arranged on the side of the first arm ring 422 away from the seat body 411, the first positioning block 131 is provided with a first arc groove, and the outer peripheral surface of the first arm ring 422 can abut against the first arc groove; the fixing device also includes a seat body 411 support seat 30, the seat body 411 support seat 30 is arranged on the lower side of the seat body 411 and can support the seat body 411.

[0036] Similar to the correction unit 23, the first positioning block 131 is provided to further position the first arm 421 and the first arm ring 422. Since the base 411 is not a simple flat plate structure and may have upward or downward protrusions or depressions, the base 411 support base 30 can provide good and stable support for the base 411. The location where the base 411 support base 30 connects to the base 411 can be configured as a contoured structure that matches the shape of the base 411.

[0037] In order to further limit the swing arm 40 in the vertical direction, as shown in FIG. Figure 1 、 Figure 6 As shown, the fixing device also includes a support block assembly and a clamping assembly. The support block assembly includes a first support block and a second support block. The first support block is arranged on the lower side of the first arm ring 422 and can support the first arm ring 422. The second support block is arranged on the lower side of the second arm ring 432 and can support the second arm ring 432. The clamping assembly includes at least one clamping arm 51 and can apply a downward clamping force to the swing arm 40.

[0038] The clamping assembly may also include a driving device such as a cylinder, a hydraulic cylinder, etc. for driving the clamping arm 51. When the swing arm 40 is placed in place, the clamping arm 51 is driven to press the swing arm 40 from above onto the first support block, the second support block and the seat body 411 support seat 30. As shown in the figure, there are multiple clamping arms 51, which are respectively pressed on the first arm ring 422, the second arm ring 432 and the center position of the seat body 411.

[0039] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and that 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 swing arm bushing extrusion device, characterized in that: The swing arm includes a base body and a first arm body and a second arm body provided on the base body, a first arm ring is provided at the end of the first arm body, a second arm ring is provided at the end of the second arm body, a bushing unit is provided in the first arm ring and the second arm ring, the bushing unit includes an outer ring body attached to the inner side walls of the first arm ring and the second arm ring, the bushing unit also includes an inner ring body coaxially provided with the outer ring body, and an inner ring hole is provided in the center of the inner ring body; The swing arm bushing extrusion equipment includes a fixing device and an extrusion device, the fixing device can fix the base body and the first arm body, the extrusion device includes a pressure head structure and a first drive component, the pressure head structure includes a pressure head portion, the pressure head structure is arranged between the first arm ring and the second arm ring and is arranged toward the second arm ring, the pressure head portion can abut against one end of the outer ring body toward the pressure head portion, the bushing unit extends along the first direction, the pressure head portion extends along the second direction, the second direction is deflected horizontally relative to the first direction toward the direction of the base body, the first drive component can drive the pressure head portion to move along the second direction and push the bushing unit out of the second arm ring.

2. The swing arm bushing extrusion equipment according to claim 1, characterized in that: The extrusion device also includes a guide unit, which includes a fixed guide rod and a second drive assembly. The guide rod is arranged on the side of the second arm ring away from the pressure head structure. The end of the guide rod can be inserted into the inner ring hole under the drive of the second drive assembly. The extrusion device can push the bushing unit to gradually be mounted on the guide rod.

3. The swing arm bushing extrusion equipment according to claim 2, characterized in that: The guide rod extends along a third direction, the third direction and the first direction are located in the same horizontal plane, and the third direction is deflected relative to the first direction toward the seat body.

4. The swing arm bushing extrusion equipment according to claim 1, characterized in that: The extrusion device further includes a correction unit, which includes a correction structure. The correction structure is arranged on the outside of the second arm body, and the correction structure can abut against the outer side surface of the second arm body close to the second arm ring.

5. The swing arm bushing extrusion equipment according to claim 1, characterized in that: The extrusion device also includes a second positioning unit, which is arranged corresponding to the second arm ring. The second positioning unit includes a second positioning block, and the second positioning block is provided with a second arc-shaped groove. The outer peripheral surface of the second arm ring away from the seat body can abut against the arc-shaped groove.

6. The swing arm bushing extrusion equipment according to claim 5, characterized in that: The second positioning unit further includes a third driving assembly, which is capable of driving the positioning block to abut against and push the second arm ring.

7. The swing arm bushing extrusion equipment according to claim 1, characterized in that: The fixing device includes an arm positioning assembly and a base positioning assembly. The arm positioning assembly is used to clamp and fix the first arm and the first arm ring, and the base positioning assembly is used to clamp and fix the base.

8. The swing arm bushing extrusion equipment according to claim 6, characterized in that: The arm positioning assembly includes an inner positioning unit and an outer positioning unit, the inner positioning unit includes an inner positioning body and an inner positioning post, the inner positioning body can abut against the inner end of the first arm ring, the inner positioning post is provided on the inner positioning body and extends along the central axis of the first arm ring, and the inner positioning post can extend into the inner ring hole; The outer positioning unit includes an outer positioning body and a fourth driving component. The outer positioning body can abut against the edge of the outer end of the bushing unit. The fourth driving component can drive the outer positioning body away from or close to the bushing unit and apply a force toward the bushing unit.

9. The swing arm bushing extrusion equipment according to claim 8, characterized in that: The arm positioning assembly further includes a first positioning unit, the first positioning unit including a first positioning block, the first positioning block being arranged on a side of the first arm ring facing away from the base body, the first positioning block being provided with a first arcuate groove, and the outer circumferential surface of the first arm ring being capable of abutting against the first arcuate groove; The fixing device further comprises a seat support seat, which is arranged on the lower side of the seat and can support the seat.

10. The swing arm bushing extrusion equipment according to claim 1, characterized in that: The fixing device further includes a support block assembly and a pressing assembly, wherein the support block assembly includes a first support block and a second support block, wherein the first support block is disposed on the lower side of the first arm ring and is capable of supporting the first arm ring, and the second support block is disposed on the lower side of the second arm ring and is capable of supporting the second arm ring; The pressing assembly includes at least one pressing arm and is capable of applying a downward pressing force to the swing arm.

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