A device applicable to the assembly of the snap ring of the track roller

Abstract

The present application discloses a device applicable to the assembly of the snap ring of a track roller, which relates to the technical field of snap ring assembly and includes a track roller positioning mechanism, a pressing mechanism, a mandrel transfer mechanism, and a snap ring transfer mechanism. The track roller positioning mechanism is used to fix the track roller at the pressing station, and the pressing mechanism is located on one side of the pressing station. The pressing mechanism is used to drive the movable mandrel to move. The mandrel transfer mechanism is located on one side of the pressing mechanism and is used to place the movable mandrel into the pressing mechanism. The snap ring transfer mechanism is located on one side of the movement path of the movable mandrel. During the assembly process, the track roller positioning mechanism positions the track roller. The snap ring transfer mechanism first places the movable mandrel into the pressing mechanism, and then the mandrel transfer mechanism installs the snap ring on the outer periphery of the movable mandrel. The pressing mechanism drives the movable mandrel and the snap ring to move towards the track roller, installs the movable mandrel into the track roller, and then pushes the snap ring into the track roller to complete the automatic assembly of the snap ring.

Description

Technical Field

[0001] This application relates to the technical field of snap ring assembly, and particularly to a device suitable for the snap ring assembly of idler wheels. Background Art

[0002] The snap ring is applied to the idler wheel to play a limiting role. In the prior art, the assembly between the snap ring and the idler wheel is usually manual assembly, which has high labor intensity, low efficiency, and unstable quality.

[0003] Therefore, how to achieve the automatic assembly of the snap ring and the idler wheel is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The purpose of this application is to provide a device suitable for the snap ring assembly of idler wheels, which can realize the automatic assembly of the snap ring and the idler wheel, thereby reducing the labor intensity of workers during the assembly process, improving the assembly efficiency, and ensuring the stability of the assembly quality.

[0005] To achieve the above purpose, this application provides a device suitable for the snap ring assembly of idler wheels, including:

[0006] An idler wheel positioning mechanism for fixing the idler wheel at the press-fitting station;

[0007] A press-fitting mechanism located on one side of the idler wheel positioning mechanism, used to drive the movable mandrel to move and press the movable mandrel and the snap ring into the idler wheel;

[0008] A mandrel transfer mechanism located on one side of the press-fitting mechanism, used to place the movable mandrel into the press-fitting mechanism;

[0009] A snap ring transfer mechanism located on one side of the movement path of the movable mandrel, used to install the snap ring on the movable mandrel.

[0010] In some embodiments, the idler wheel positioning mechanism includes an idler wheel clamping cylinder and a main positioning cylinder respectively located on the left and right sides of the press-fitting station. The pistons of the two are arranged oppositely. Clamping plates are provided on the pistons of the idler wheel clamping cylinder and the main positioning cylinder. The two clamping plates are respectively located on both sides of the press-fitting station. The idler wheel positioning mechanism further includes a downward pressing cylinder located above the press-fitting station. A downward pressing head for pressing the idler wheel is provided at the lower end of the piston of the downward pressing cylinder.

[0011] In some embodiments, the lower side surface of the downward pressing head is an arc surface. The height in the middle of the arc surface is higher than the heights at both ends. The arc surface is used to fit the side surface of the idler wheel and perform radial positioning on the idler wheel.

[0012] In some embodiments, the mandrel transfer mechanism includes a clamp, a clamping drive part for driving the clamp to clamp the movable mandrel, and a mandrel translation part for driving the movable mandrel to move towards the press-fitting mechanism.

[0013] In some embodiments, the mandrel translation part is a moving cylinder parallel to the moving path of the movable mandrel, a jaw vertical moving cylinder.

[0014] In some embodiments, the press-fitting mechanism includes a rod-shaped mandrel press head arranged along the moving path of the movable mandrel. The mandrel press head has an insertion hole for the mandrel press head to be inserted. The press-fitting mechanism further includes a press-fitting cylinder assembly for pressing the movable mandrel and the snap ring into the idler wheel.

[0015] In some embodiments, the press-fitting cylinder assembly includes a main press-fitting cylinder and a secondary press-fitting cylinder, both of which are parallel to the moving path of the movable mandrel. The main press-fitting cylinder is a slide table cylinder. There is a mounting seat connected to its piston on one side of the main press-fitting cylinder. The secondary press-fitting cylinder is mounted on the mounting seat. The mounting seat includes a vertical plate perpendicular to the main press-fitting cylinder. The piston of the secondary press-fitting cylinder extends to the side of the vertical plate close to the press-fitting station through the through hole of the vertical plate. There is a fixing plate at one end of the piston of the secondary press-fitting cylinder close to the press-fitting station. The mandrel press head includes an inner press head and an outer press head sleeved on the outer periphery of the inner press head. The fixing plate has a through hole penetrating in the thickness direction. The outer press head is located outside the through hole and is fixedly connected to the fixing plate. The inner press head passes through the through hole and is fixedly connected to the vertical plate. The inner press head is used to push the movable mandrel, and the outer press head is used to push the snap ring.

[0016] In some embodiments, the press-fitting mechanism further includes a support assembly located on the side of the mandrel press head away from the snap ring transfer mechanism for supporting the mandrel press head.

[0017] In some embodiments, the snap ring transfer mechanism includes a storage rod parallel to the moving path of the movable mandrel for storing snap rings. The snap ring transfer mechanism further includes a snap ring transfer part corresponding to the end of the storage rod close to the press-fitting station. The snap ring transfer part has a receiving groove for receiving the snap ring. The snap ring transfer mechanism further includes a transverse transfer part for pushing the snap ring transfer part to move towards the moving path of the movable mandrel and a pressing assembly for pushing the snap ring on the storage rod towards the snap ring moving part.

[0018] In some embodiments, the pressing assembly includes a pressing cylinder and a connecting pressing plate. The pressing cylinder is a slide table cylinder. The connecting pressing plate is connected to the piston of the slide table cylinder. The pressing cylinder is parallel to the storage rod.

[0019] The present application provides a device suitable for the assembly of the snap ring of an idler wheel, including an idler wheel positioning mechanism, a press-fitting mechanism, a mandrel transfer mechanism, and a snap ring transfer mechanism. The idler wheel positioning mechanism is used to fix the idler wheel at the press-fitting station. The press-fitting mechanism is located on one side of the press-fitting station. The press-fitting mechanism is used to drive the movable mandrel to move and press the movable mandrel and the snap ring into the idler wheel. The mandrel transfer mechanism is located on one side of the press-fitting mechanism and is used to put the movable mandrel into the press-fitting mechanism. The snap ring transfer mechanism is located on one side of the moving path of the movable mandrel.

[0020] During the assembly process, the idler wheel positioning mechanism positions the idler wheel. The circlip transfer mechanism first places the movable mandrel into the press-fitting mechanism, and then the mandrel transfer mechanism installs the circlip on the outer periphery of the movable mandrel. The press-fitting mechanism drives the movable mandrel and the circlip to move towards the idler wheel, inserts the movable mandrel into the idler wheel, and then pushes the circlip into the idler wheel to complete the automatic assembly of the circlip. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0022] Figure 1 It is a schematic structural diagram of a specific embodiment of the device applicable to the circlip assembly of the idler wheel provided by the present application;

[0023] Figure 2 It is Figure 1 a schematic structural diagram of the press-fitting mechanism in

[0024] Figure 3 It is Figure 1 a schematic structural diagram of the mandrel transfer mechanism in

[0025] Figure 4 It is Figure 1 a schematic structural diagram of the idler wheel positioning mechanism;

[0026] Figure 5 It is Figure 1 a schematic structural diagram of the circlip transfer mechanism in

[0027] Among them, Figures 1 to 5 the reference numerals in

[0028] are: connecting mounting arm 1, press-fitting mechanism 2, secondary press-fitting cylinder 21, mandrel press head 22, movable stop block 23, stop block cylinder 24, movable mandrel 25, main press-fitting cylinder 26, fixed plate 27, mounting seat 28, mandrel transfer mechanism 3, moving cylinder 31, mandrel clamping cylinder 32, clamping jaw 33, idler wheel positioning mechanism 4, idler wheel clamping cylinder 41, lower press head 42, lower press cylinder 43, main positioning cylinder 44, circlip transfer mechanism 5, pressing cylinder 51, connecting pressure plate 52, storage rod 53, circlip transfer plate 54, transverse movement cylinder 55, bracket 6. Specific Embodiments

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0030] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0031] Please refer to Figures 1 to 5 , Figure 1 which is a schematic structural diagram of a specific implementation manner of the device applicable to the assembly of the track roller snap ring provided by the present application; Figure 2 is Figure 1 a schematic structural diagram of the press-fitting mechanism in Figure 3 is Figure 1 a schematic structural diagram of the mandrel transfer mechanism in Figure 4 is Figure 1 a schematic structural diagram of the track roller positioning mechanism in Figure 5 is Figure 1 a schematic structural diagram of the snap ring transfer mechanism in

[0032] The device applicable to the assembly of the track roller snap ring provided by the present application has a structure as Figure 1 shown, and includes a track roller positioning mechanism 4, a press-fitting mechanism 2, a mandrel transfer mechanism 3, and a snap ring transfer mechanism 5. Usually, a conveyor line is provided below the track roller positioning mechanism 4, and the track rollers are conveyed through the conveyor line. The press-fitting station is located in the track roller positioning mechanism 4, and the track roller positioning mechanism 4 fixes the track roller at the press-fitting station, facilitating subsequent assembly operations. The press-fitting mechanism 2 is located on one side of the press-fitting station, and the movable mandrel 25 is inserted into the mounting hole of the track roller by press-fitting. The mandrel transfer mechanism 3 is located between the press-fitting mechanism 2 and the press-fitting station, and the mandrel transfer mechanism 3 is also located above the conveyor line. The mandrel transfer mechanism 3 can grab the movable mandrel 25 on the conveyor line, and then translate the movable mandrel 25 and insert it into the press-fitting mechanism 2. The movement path of the movable mandrel 25 is the path along which the movable mandrel 25 moves during the process of the press-fitting mechanism 2 pressing the movable mandrel 25 into the track roller, and the movement path of the movable mandrel 25 is located on the straight line where the axis of the mounting hole of the track roller is located.

[0033] The snap ring transfer mechanism 5 is located on one side of the movement path of the movable mandrel 25. The snap ring transfer mechanism 5 first moves the snap ring to the movement path of the movable mandrel 25, and then the mandrel transfer mechanism 3 drives the movable mandrel 25 to move towards the press-fitting mechanism 2. The movable mandrel 25 passes through the inner hole of the snap ring and then inserts into the press-fitting mechanism 2.

[0034] In this embodiment, the carrier roller positioning mechanism 4, the press-fitting mechanism 2, the mandrel transfer mechanism 3, and the circlip transfer mechanism 5 cooperate with each other to achieve the automatic assembly of the carrier roller, the movable mandrel 25, and the circlip, reducing the labor consumption in the assembly process, improving the assembly efficiency, and enhancing the assembly reliability.

[0035] In some embodiments, the carrier roller positioning mechanism 4 includes a carrier roller clamping cylinder 41 and a main positioning cylinder 44. As Figure 4 shown, the carrier roller clamping cylinder 41 and the main positioning cylinder 44 are respectively located on the left and right sides of the press-fitting station, and the pistons of the two are arranged opposite to each other. Clamping plates are provided at the ends of the pistons of the carrier roller clamping cylinder 41 and the main positioning cylinder 44 close to the press-fitting station, and the two clamping plates are respectively located on both sides of the press-fitting station. When the pistons of the carrier roller clamping cylinder 41 and the main positioning cylinder 44 extend, the two clamping plates are respectively attached to the two end faces of the carrier roller, thereby clamping the carrier roller. Of course, the upper parts of the clamping plates are attached to the end faces of the carrier roller, and the mounting holes of the carrier roller are located below the clamping plates.

[0036] In some embodiments, the carrier roller positioning mechanism 4 further includes a lower pressure head 42, and the lower pressure head 42 is located above the press-fitting station. An upper pressure cylinder 43 is provided above the lower pressure head 42, and the lower end of the piston of the upper pressure cylinder 43 is connected to the lower pressure head 42. The upper pressure cylinder 43 pushes the lower pressure head 42 to move downward, and thus the carrier roller can be pressed tightly. As Figure 4 shown, the lower side surface of the lower pressure head 42 is an arc surface, the arc surface is parallel to the axis of the carrier roller, and the height in the middle of the arc surface is higher than that at both ends. When the lower pressure head 42 presses down, the arc surface is attached to the side surface of the carrier roller, and both ends of the arc surface can perform radial positioning on the carrier roller. Of course, other structures can also be used by users to position the carrier roller, which is not limited herein.

[0037] In some embodiments, the mandrel transfer mechanism 3 includes a jaw 33, a clamping driving part, and a mandrel translation part. As Figure 1 and Figure 3 shown, the clamping driving part can drive the jaw 33 to open and close to control the jaw 33 to clamp the movable mandrel 25. The mandrel translation part is used to drive the movable mandrel 25 to move towards the press-fitting mechanism 2 and load the movable mandrel 25 into the press-fitting mechanism 2.

[0038] In some embodiments, as Figure 3As shown, the mandrel translation part is the moving cylinder 31, and the moving cylinder 31 is parallel to the moving path of the movable mandrel 25. The moving cylinder 31 is a slide table cylinder, and a moving platform is provided on one side of the moving cylinder 31. The moving platform is parallel to the moving path of the movable mandrel 25. The piston of the moving cylinder 31 is connected to the moving platform and drives the moving platform to move. The clamping drive part is the mandrel clamping cylinder 32, and the mandrel clamping cylinder 32 is installed at one end of the moving platform close to the press-fitting mechanism 2. The clamping jaw 33 is perpendicular to the moving cylinder 31, and a fixing groove is provided inside the clamping jaw 33. When the clamping jaw 33 clamps, the movable mandrel 25 is located in the fixing groove.

[0039] In some embodiments, the press-fitting mechanism 2 includes a mandrel press head 22 and a press-fitting cylinder assembly. As Figure 2 shown, the mandrel press head 22 is rod-shaped, and an insertion hole is provided inside it. The insertion hole is located at one end of the moving path of the movable mandrel 25. The mandrel transfer mechanism 3 inserts the movable mandrel 25 into the insertion hole of the mandrel press head 22. The mandrel press head 22 is connected to the press-fitting cylinder assembly. After the movable mandrel 25 is inserted into the insertion hole of the mandrel press head 22, the press-fitting cylinder assembly drives the mandrel press head 22 to move along the moving path of the movable mandrel 25 towards the press-fitting station, and finally inserts the movable mandrel 25 into the mounting hole of the idler wheel. The press-fitting cylinder assembly further acts to press the snap ring located on the outer periphery of the movable mandrel 25 into the mounting hole of the idler wheel.

[0040] In some embodiments, the press-fitting cylinder assembly includes a main press-fitting cylinder 26 and a secondary press-fitting cylinder 21. The mandrel press head 22 includes an inner press head and an outer press head, and the inner press head is arranged inside the outer press head. The inner press head and the outer press head are respectively connected to the main press-fitting cylinder 26 and the secondary press-fitting cylinder 21. The moving directions of the main press-fitting cylinder 26 and the secondary press-fitting cylinder 21 are both parallel to the moving path of the movable mandrel 25. The main press-fitting cylinder 26 acts to push the secondary press-fitting cylinder 21, the mandrel press head 22 and the movable mandrel 25 towards the press-fitting station, and press the movable mandrel 25 into the mounting hole of the idler wheel. The secondary press-fitting cylinder 21 acts to press the snap ring on the outer periphery of the movable mandrel 25 into the mounting hole through the outer press head, completing the assembly of the snap ring and the idler wheel.

[0041] In some embodiments, the main press-fitting cylinder 26 is a slide cylinder. An installation base 28 is provided on one side of the main press-fitting cylinder 26, and the installation base 28 is connected to the piston of the main press-fitting cylinder 26. The installation base 28 includes a vertical plate perpendicular to the main press-fitting cylinder 26 and a horizontal plate parallel to the main press-fitting cylinder 26. The secondary press-fitting cylinder 21 is installed on the horizontal plate, and the cylinder barrel of the secondary press-fitting cylinder 21 is connected to the side of the vertical plate away from the press-fitting station. The vertical plate has a through hole penetrating along the thickness direction, and the piston of the secondary press-fitting cylinder 21 passes through the through hole and extends to the side of the vertical plate close to the press-fitting station. One end of the piston of the secondary press-fitting cylinder 21 passing through the through hole is provided with a fixing plate 27 perpendicular to the piston. The outer layer press head is fixedly connected to the fixing plate 27 and extends towards the press-fitting station. The fixing plate 27 has a through hole penetrating along the thickness direction. The outer layer press head is located outside the through hole, and the inner layer press head passes through the through hole and is fixedly connected to the vertical plate. The inner diameter of the inner layer press head is smaller than the maximum diameter of the movable mandrel 25, and the inner diameter of the outer layer press head is larger than the maximum diameter of the movable mandrel 25 and smaller than the outer diameter of the snap ring. The inner layer press head is used to push the movable mandrel 25, and the outer layer press head is used to push the snap ring.

[0042] In some embodiments, the snap ring transfer mechanism 5 includes a storage rod 53, a snap ring transfer part, and a pressing component. As Figure 5 shown, the storage rod 53 is parallel to the movement path of the movable mandrel 25, and the snap ring is sleeved on the outer periphery of the storage rod 53. The snap ring transfer part can specifically be a snap ring transfer plate 54. The snap ring transfer plate 54 has a receiving groove for receiving the snap ring. The receiving groove corresponds to one end of the storage rod 53 close to the press-fitting station. The pressing component is used to push the snap ring on the storage rod 53 towards the receiving groove. The snap ring at the outermost end of the storage rod 53 will break away from the storage rod 53 under the push of the pressing component and enter the receiving groove. The snap ring transfer mechanism 5 further includes a transverse movement part, and the transverse movement part is connected to the snap ring movement part and is used to push the snap ring transfer plate 54 towards the movement path of the movable mandrel 25. The snap ring in the receiving groove moves to the movement path of the movable mandrel 25 along with the snap ring movement part. In addition, a step surface facing the storage rod 53 direction is provided in the receiving groove, and the step surface is opposite to the thrust direction of the pressing component to prevent the snap ring from falling out of the receiving groove.

[0043] In some embodiments, the pressing component includes a pressing cylinder 51 and a connecting pressing plate 52. As Figure 5 shown, the pressing cylinder 51 is a slide cylinder, the connecting pressing plate 52 is connected to the piston of the pressing cylinder 51, and the pressing cylinder 51 is parallel to the storage rod 53. The snap ring transfer plate 54 is a snap ring moving plate, the transverse movement part is a transverse movement cylinder 55, and the transverse movement cylinder 55 is also a slide cylinder. The snap ring moving plate is connected to the piston of the transverse movement cylinder 55. The transverse movement cylinder 55 is located below the pressing cylinder 51, and the snap ring moving plate extends upwards to avoid colliding with the transverse movement cylinder 55 and the storage rod 53.

[0044] In some embodiments, the press-fitting mechanism 2 further includes a support assembly located on the side of the mandrel punch 22 away from the snap ring transfer mechanism 5. The support assembly is used to support the mandrel punch 22 to ensure accurate positioning of the movable mandrel 25 and the mounting hole of the idler wheel. As Figure 2 shown, the support assembly includes a movable stop block 23 and a stop block cylinder 24. The stop block cylinder 24 is perpendicular to the mandrel punch 22. The movable stop block 23 is connected to the piston of the stop block cylinder 24. The stop block cylinder 24 pushes the movable stop block 23 to fit with the mandrel punch 22. When the specifications of the idler wheel and the movable mandrel 25 change, the stop block cylinder 24 can adjust the position of the movable stop block 23.

[0045] In some embodiments, the device for assembling the idler wheel snap ring further includes a bracket 6 and a connecting mounting arm 1. There are 2 brackets 6, which are respectively located on both sides of the conveyor line. A main positioning cylinder 44 is arranged on one of the brackets 6, and a snap ring transfer mechanism 5 and a press-fitting mechanism 2 are arranged on the other bracket 6. The connecting mounting arm 1 spans above the conveyor line. The idler wheel clamping cylinder 41, the mandrel transfer mechanism 3 and the stop block cylinder 24 are fixed through the connecting mounting arm 1. Of course, users can also install each mechanism of the device suitable for assembling the idler wheel snap ring in other ways according to needs, which is not limited here.

[0046] In this embodiment, for the device suitable for assembling the idler wheel snap ring, a stop block cylinder 24 and a movable stop block 23 are provided to support the mandrel punch 22, ensuring that the mandrel punch 22 can be aligned with the mounting hole of the idler wheel, and further ensuring that the movable mandrel 25 can be accurately installed into the mounting hole.

[0047] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0048] The device suitable for assembling the idler wheel snap ring provided in the present application has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An apparatus applicable to the assembly of the snap ring of a track roller, characterized in that Comprising: The idler wheel positioning mechanism (4) is used to fix the idler wheel at the press-fitting station; The press-fitting mechanism (2) is located on one side of the idler wheel positioning mechanism (4) and is used to drive the movable mandrel (25) to move and press the movable mandrel (25) and the snap ring into the idler wheel; The mandrel transfer mechanism (3) is located on one side of the press-fitting mechanism (2) and is used to place the movable mandrel (25) into the press-fitting mechanism (2); The snap ring transfer mechanism (5) is located on one side of the movement path of the movable mandrel (25) and is used to install the snap ring on the movable mandrel (25); The idler wheel positioning mechanism (4) includes an idler wheel clamping cylinder (41) and a main positioning cylinder (44) respectively located on the left and right sides of the press-fitting station. The pistons of the two are arranged oppositely. Clamping plates are provided on the pistons of the idler wheel clamping cylinder (41) and the main positioning cylinder (44). The two clamping plates are respectively located on both sides of the press-fitting station. The idler wheel positioning mechanism (4) also includes a downward pressing cylinder (43) located above the press-fitting station. A downward pressing head (42) for pressing the idler wheel is provided at the lower end of the piston of the downward pressing cylinder (43); The mandrel transfer mechanism (3) includes a clamp (33), a clamping drive part for driving the clamp (33) to clamp the movable mandrel (25), and a mandrel translation part for driving the movable mandrel (25) to move towards the press-fitting mechanism (2); The press-fitting mechanism (2) includes a rod-shaped mandrel press head (22). The mandrel press head (22) is arranged along the movement path of the movable mandrel (25). The mandrel press head (22) has an insertion hole for the mandrel press head (22) to insert. The press-fitting mechanism (2) also includes a press-fitting cylinder assembly for pressing the movable mandrel (25) and the snap ring into the idler wheel; The press-fitting cylinder assembly includes a main press-fitting cylinder (26) and a secondary press-fitting cylinder (21). Both are parallel to the movement path of the movable mandrel (25). The main press-fitting cylinder (26) is a slide table cylinder. An installation seat (28) connected to its piston is provided on one side of the main press-fitting cylinder (26). The secondary press-fitting cylinder (21) is installed on the installation seat (28). The installation seat (28) includes a vertical plate perpendicular to the main press-fitting cylinder (26). The piston of the secondary press-fitting cylinder (21) extends to the side of the vertical plate close to the press-fitting station through a through hole of the vertical plate. A fixing plate (27) is provided at one end of the piston of the secondary press-fitting cylinder (21) close to the press-fitting station. The mandrel press head (22) includes an inner press head and an outer press head sleeved on the outer periphery of the inner press head. The fixing plate (27) has a through hole penetrating in the thickness direction. The outer press head is located outside the through hole and is fixedly connected to the fixing plate (27). The inner press head passes through the through hole and is fixedly connected to the vertical plate. The inner press head is used to push the movable mandrel (25), and the outer press head is used to push the snap ring.

2. The device according to claim 1, characterized in that The lower side surface of the lower pressing head (42) is an arc surface, the height of the middle part of the arc surface is higher than that of both ends, and the arc surface is used to fit the side surface of the track roller and radially position the track roller.

3. The device according to claim 1, wherein The mandrel translation part is a moving cylinder (31) parallel to the moving path of the movable mandrel (25), and the clamping jaw (33) is perpendicular to the moving cylinder (31).

4. The device according to claim 1, characterized in that, The pressing mechanism (2) further includes a support assembly located on the side of the mandrel pressing head (22) away from the circlip transfer mechanism (5) for supporting the mandrel pressing head (22).

5. The device according to any one of claims 1 to 4, characterized in that The circlip transfer mechanism (5) includes a storage rod (53) parallel to the moving path of the movable mandrel (25), the storage rod (53) is used to store circlips, the circlip transfer mechanism (5) further includes a circlip transfer part corresponding to one end of the storage rod (53) close to the pressing station, the circlip transfer part has a receiving groove for receiving circlips, and the circlip transfer mechanism (5) further includes a transverse movement part for pushing the circlip transfer part to move along the moving path of the movable mandrel (25) and a pressing component for pushing the circlips on the storage rod (53) towards the circlip transfer part.

6. The device according to claim 5, characterized in that The pressing component includes a pressing cylinder (51) and a connecting pressing plate (52), the pressing cylinder (51) is a slide cylinder, the connecting pressing plate (52) is connected to the piston of the slide cylinder, and the pressing cylinder (51) is parallel to the storage rod (53).

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