Railway brake cylinder piston assembly automatic machining device

Abstract

The utility model belongs to the piston composition production and manufacturing technical field, concretely relates to a railway brake cylinder piston composition automatic processing device, including piston support seat, to be used for adapting and compacting piston, piston rotation module, to drive piston to carry out self -rotation, drilling riveting module, to carry out drilling and riveting to piston, piston rod press -fitting module, to install piston rod to piston, piston rod press -fitting module includes piston rod positioner and press -fitting drive assembly. Through the fixation to piston, and through the adjustment piston support seat and piston rotation module can realize the compatible support to different piston, and switch different processing angle, piston rod press -fitting module can press into piston rod to piston, and is fixedly connected through riveting assembly. The utility model improves the automation degree in the piston processing process, improves the precision and efficiency of processing, avoids the error caused by manual operation, reduces the potential safety hazard.

Description

Technical Field

[0001] This utility model belongs to the field of piston assembly manufacturing technology, specifically relating to an automatic processing device for railway brake cylinder piston assemblies. Background Technology

[0002] The piston assembly of a railway brake cylinder is a crucial component. Its main structure consists of a piston, piston rod, and elastic pin. Depending on the size and model of the brake cylinder, the piston assembly is available in sizes of 8 inches, 10 inches, 12 inches, and 14 inches, and comes in eight types, categorized as both standard and active. The typical manufacturing process includes machining. Currently, the production process uses manual assembly. First, the piston and piston rod are moved to a simple tooling for press-fitting. After press-fitting, they are placed on a bench drill for drilling. After drilling, the elastic pin is manually riveted and glued in place. The entire process requires multiple manual reciprocating movements, resulting in high labor intensity, low production efficiency, and significant machining errors and inconsistent product quality.

[0003] It is evident that the current processing technology for piston components still has room for improvement. Optimization is needed to enhance automation and efficiency, reduce manual labor intensity, and prevent processing errors and quality issues. Therefore, a more rational technical solution is required to address the existing technical problems. Utility Model Content

[0004] The present invention aims to provide an automatic processing device for piston components of railway brake cylinders. By automating the processing of piston components, the device improves the automation level and efficiency of piston processing, reduces manual labor intensity, improves processing accuracy, and ensures the reliability of processing quality.

[0005] To achieve the above objectives, the device disclosed in this utility model can adopt the following solution: An automatic processing device for railway brake cylinder piston assembly includes: A piston support seat is used to fit a piston and press and fix the piston; the piston support seat includes a plurality of support wheels that support the piston from below, and a pressing mechanism that presses the piston surface from the axial direction. A piston rotation module is used to drive the piston to rotate on its own. The piston rotation module includes rollers for conforming to the edge of the piston. The rollers are driven by a rotary driver. When the rollers rotate, they drive the piston to rotate. A drilling and riveting module is used to drill and rivet a piston. The drilling and riveting module includes a drilling assembly and a riveting assembly that are staggered in the circumferential direction. The drilling assembly and the riveting assembly process the piston on the same circumferential surface. The drilling assembly is used to process the hole structure of the piston radially, and the riveting assembly is used to install a riveting component into the hole structure. A piston rod press-fit module is used to install a piston rod onto a piston; the piston rod press-fit module includes a piston rod positioning device and a press-fit drive assembly, the press-fit drive assembly being used to apply an axial driving force to the piston rod to fit the piston rod onto the piston.

[0006] The aforementioned automatic processing device supports and fixes the piston through a piston support seat, while a piston rotation module provides circumferential power to adjust the piston's rotation in the circumferential direction, thus enabling the switching between drilling and riveting operations. The piston rod is assembled onto the piston through the axial movement of the piston rod pressing module, completing the overall processing and installation of the piston.

[0007] Furthermore, the automated processing device is constructed as a single integrated structure, which can employ various methods to improve its overall integrity. The specific method is not limited to a single approach; here, we propose one feasible option: it further includes a frame module, on which the piston support, piston rotation module, drilling and riveting module, and piston rod pressing module are all fixedly fitted. When using the above approach, the frame module is an integral frame with a platform on top for bearing loads and installing other structural components. It can be constructed as connecting platforms, mounting holes, etc.

[0008] Furthermore, the piston support seat can employ various support schemes for the piston, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: the piston support seat further includes a support body, on which a sliding adjustment seat is provided for connecting and mounting support wheels. The support wheels move and adjust with the sliding adjustment seat to adapt to pistons of different sizes. The clamping mechanism is disposed on the sliding adjustment seat and moves synchronously with it. The clamping mechanism includes a telescopic motor and a clamping block. The telescopic motor drives the clamping block to move and clamp or release the piston. Using the above scheme, the clamping mechanism can drive the clamping block to reciprocate in a straight line via the telescopic motor, thereby clamping or releasing the piston, thus achieving fixation during piston processing and switching or disassembly after processing.

[0009] Furthermore, the sliding adjustment seat is used to adjust the support position to support pistons of different sizes. Its structure is not uniquely limited; here, optimization is proposed, and one feasible option is suggested: the sliding adjustment seat is connected to a first slide rail on the support body. The support body has several positioning holes, and the sliding adjustment seat has locking holes. When the locking hole aligns with the positioning hole, a positioning pin connects and positions the seat. With this solution, the sliding adjustment seat engages with the first slide rail. The first slide rail surface can be T-shaped, thereby limiting the sliding adjustment seat and ensuring its directional sliding along the first slide rail while preventing it from falling off.

[0010] Furthermore, the piston rotation module is used to adjust the piston's rotation angle, enabling processing at different positions of the piston. Various schemes can be adopted; here, we optimize and propose one feasible option: the piston rotation module includes a drive wheel and a stabilizing wheel. The drive wheel is connected to a rotary actuator and rotates with the rotary actuator. The stabilizing wheel is used to press against the piston and rotates synchronously with the piston. In this scheme, the rotary actuator includes a drive motor, and the drive wheel can be a flexible wheel that transmits driving force to the piston when it is in contact with the piston's edge. The stabilizing wheel is also a flexible wheel, and its edge can rotate synchronously with the piston's edge, ensuring the piston's stability.

[0011] Furthermore, in some designs, a synchronization component is also provided on the drive wheel. This synchronization component is used to detect the operating parameters of the drive wheel, including the rotation speed and the angle of rotation, so as to facilitate the calculation of the piston's rotation.

[0012] Furthermore, the piston rotates to switch processing positions. The piston rotation module can be constructed in various forms; here, we optimize and propose one feasible option: the piston rotation module also includes a fixed base and a lifting base. A lifting driver is connected to the fixed base to drive the lifting base. The rotation driver, drive wheel, and stabilizing wheel are all connected to the lifting base. The movement of the lifting base drives the drive wheel and stabilizing wheel to move and engage with or disengage from the piston. Using this scheme, the lifting driver drives the lifting base to achieve the overall lifting and lowering of the drive wheel and stabilizing wheel, facilitating close engagement with the corresponding piston and adaptation after switching to pistons of different sizes.

[0013] Furthermore, when achieving the mating fit between the piston and piston rod, fixation is achieved through connecting holes and riveting components. Various methods can be used to implement drilling and riveting; here, an optimized and feasible option is proposed: the drilling and riveting module includes a moving component that drives a translating drill and riveting mechanism. The drill also cooperates with a horizontal feed component to move closer to or away from the piston. Using this method, after the drill moves to the corresponding position, it can approach the piston via the horizontal feed component to perform drilling. After drilling is complete, the feed component retracts. Once drilling is finished, the riveting mechanism performs riveting, achieving the connection and fixation at the hole position.

[0014] Furthermore, the riveting mechanism can employ various schemes to achieve the fixing of the corresponding holes on the piston and piston rod. Its structure is not limited to a single one; here, we optimize and propose one feasible option: the riveting mechanism includes a riveting rod and a vibrating feed plate. The vibrating feed plate is used to feed the riveted parts to a set position, and the riveting rod is used for riveting. The riveting rod is also connected to a longitudinal feed assembly, which moves it closer to the piston for riveting or away from the piston for retraction. Using this scheme, the longitudinal feed assembly adjusts the riveting mechanism to be closer to the piston longitudinally. After finding the corresponding empty position, the riveting connection operation can be performed, thereby achieving the connection and fixing of the piston and piston rod.

[0015] Furthermore, before the piston rod is assembled to the piston, it is assisted in being fixed by a piston rod positioning device. Here, optimization is proposed, and one feasible option is suggested: the piston rod positioning device includes a height adjusting seat, which is used to adjust the piston rod to maintain a horizontal alignment with the piston; the height adjusting seat is provided with at least two positioning brackets for supporting the piston rod. When adopting the above solution, the height adjusting seat includes a hydraulic lifting structure, a threaded rod lifting structure, or a pneumatic lifting structure, thereby achieving longitudinal lifting and lowering.

[0016] Furthermore, when pressing the piston rod onto the piston, the following method can be used: the pressing drive assembly includes a pressing base, on which a pressing driver and a pressure detection assembly are mounted. The pressing driver provides axial driving force to the piston rod to fit it onto the piston. When using the above method, the pressing driver can be a servo electric cylinder, etc.

[0017] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this utility model include: By fixing the piston and adjusting the piston support and piston rotation module, compatible support for different pistons can be achieved, and different processing angles can be switched. The piston rod press-fit module can press the piston rod into the piston and fix it with a riveting assembly. This invention improves the automation level of the piston processing, increases the processing accuracy and efficiency, avoids errors caused by manual operation, and reduces safety hazards. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the automated processing device.

[0020] Figure 2 This is a schematic diagram of the overall structure of the automated processing device from another perspective.

[0021] Figure 3 This is a front view schematic diagram of the piston support structure and piston rotation structure (with piston).

[0022] Figure 4 This is a frontal schematic view of the piston support structure and piston rotation structure (without the piston).

[0023] Figure 5 This is a schematic diagram of the overall structure of the drilling and riveting module.

[0024] Figure 6 This is a schematic diagram of the overall structure of the drilling and riveting module from another perspective.

[0025] Figure 7 This is a schematic diagram of the overall structure of the piston rod press-fit module.

[0026] The meanings of each component in the diagram are as follows: 1. Bench Module; 2. Piston Support Seat; 201. Support Seat Body; 202. First Slide Rail; 203. Sliding Adjustment Seat; 204. Telescopic Motor; 205. Clamping Block; 206. Positioning Pin; 3. Piston Rotation Module; 301. Fixed Seat; 302. Lifting Seat; 303. Drive Wheel; 304. Synchronization Component; 305. Stabilizing Wheel; 306. Lifting Driver; 307. Second Slide Rail; 4. Drilling and Riveting Module; 401. Drill Rig; 402. Moving Component; 403. Riveting Mechanism; 404. Longitudinal Feed Component; 405. Horizontal Feed Component; 406. Cover; 5. Piston Rod Press-fit Module; 501. Piston Rod Positioning Device; 5011. Positioning Bracket; 5012. Height Adjustment Seat; 502. Press-fit Drive Component; 5021. Press-fit Driver; 5022. Pressure Detection Component; 6. Piston Assembly; 601. Piston Rod. Detailed Implementation

[0027] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this embodiment.

[0028] In view of the many defects in the piston processing technology in the prior art, including low processing efficiency and low degree of automation, the following embodiments are optimized and overcome the defects in the prior art.

[0029] Example like Figures 1-7 As shown, this embodiment provides an automatic processing device for railway brake cylinder piston assembly, which is used to automate the processing of pistons and can adapt to various piston sizes.

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, one of the structures of the automatic processing device provided in this embodiment includes: Piston support 2 is used to fit the piston and press and fix the piston; the piston support 2 includes a plurality of support wheels that support the piston from below, and a pressing mechanism that presses the piston surface from the axial direction.

[0031] The piston support seat 2 can employ various support schemes for the piston, and its structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the piston support seat 2 further includes a support body 201, on which a sliding adjustment seat 203 is provided for connecting and mounting support wheels. The support wheels move and adjust with the sliding adjustment seat 203 to adapt to pistons of different sizes. The clamping mechanism is disposed on the sliding adjustment seat 203 and moves synchronously with the sliding adjustment seat 203. The clamping mechanism includes a telescopic motor 204 and a clamping block 205. The telescopic motor 204 drives the clamping block 205 to move and clamp or release the piston. When the above scheme is adopted, the clamping mechanism can drive the clamping block 205 to reciprocate in a straight line through the telescopic motor 204, thereby achieving the clamping or releasing of the piston, thus realizing the fixation of the piston during the processing and the switching or disassembly after processing.

[0032] The sliding adjustment seat 203 is used to adjust the support position to support pistons of different sizes. Its structure is not uniquely limited; this embodiment optimizes the design and adopts one feasible option: the sliding adjustment seat 203 is connected to the first slide rail 202 on the support body 201. The support body 201 has several positioning holes, and the sliding adjustment seat 203 has locking holes. When the locking hole aligns with the positioning hole, it is connected and positioned by a positioning pin 206. With this solution, the sliding adjustment seat 203 engages with the first slide rail 202. The surface of the first slide rail 202 can be T-shaped, thereby limiting the sliding adjustment seat 203 and ensuring that it slides directionally along the first slide rail 202 while preventing it from falling off.

[0033] like Figure 3 , Figure 4 As shown, the second structure of the automatic processing device provided in this embodiment includes: The piston rotation module 3 is used to drive the piston to rotate on its own. The piston rotation module 3 includes rollers for conforming to the edge of the piston. The rollers are driven by a rotary driver. When the rollers rotate, they drive the piston to rotate. The piston rotation module 3 is used to adjust the rotation angle of the piston, enabling processing at different positions of the piston. Various schemes can be adopted; this embodiment optimizes and uses one feasible option: the piston rotation module 3 includes a drive wheel 303 and a stabilizing wheel 305. The drive wheel 303 is connected to a rotary actuator and rotates with the rotary actuator. The stabilizing wheel 305 is used to press against the piston and rotate synchronously with the piston. In this scheme, the rotary actuator includes a drive motor, and the drive wheel 303 can be a flexible wheel that transmits driving force to the piston when it is in contact with the piston's edge. The stabilizing wheel 305 is also a flexible wheel, and its edge can rotate synchronously with the piston's edge, ensuring the piston's stability.

[0034] In some designs, a synchronization component 304 is also provided on the drive wheel 303. The synchronization component 304 is used to detect the operating parameters of the drive wheel 303, including the rotation speed and the angle of rotation, so as to facilitate the calculation of the piston's rotation.

[0035] The piston rotates to switch processing positions. The piston rotation module 3 can be constructed in various forms. This embodiment optimizes and adopts one feasible option: the piston rotation module 3 further includes a fixed seat 301 and a lifting seat 302. A lifting driver 306 is connected to the fixed seat 301 to drive the lifting seat 302. The rotation driver, drive wheel 303, and stabilizing wheel 305 are all connected to the lifting seat 302. The movement of the lifting seat 302 drives the drive wheel 303 and stabilizing wheel 305 to move and engage with or disengage from the piston. With this solution, the lifting driver 306 drives the lifting seat 302 to achieve the overall lifting and lowering of the drive wheel 303 and stabilizing wheel 305, facilitating close engagement with the corresponding piston and adaptation after switching to pistons of different sizes.

[0036] Preferably, in this embodiment, the fixed seat 301 is disposed on the second slide rail 307, and moves closer to or away from the piston by moving along the second slide rail 307. A sliding telescopic motor 204 is disposed at the fixed seat 301 on the second slide rail 307, and the sliding telescopic motor 204 is used to drive the fixed seat 301 to move along the second slide rail 307 and align the drive wheel 303 and the stabilizing wheel 305 with the piston.

[0037] like Figure 5 , Figure 6 As shown, the third structure of the automatic processing device provided in this embodiment includes: The drilling and riveting module 4 is used to drill and rivet the piston. The drilling and riveting module 4 includes a drilling assembly and a riveting assembly that are staggered in the circumferential direction. The drilling assembly and the riveting assembly process the piston on the same circumferential surface. The drilling assembly is used to process the hole structure of the piston from the radial direction, and the riveting assembly is used to set the riveting part into the hole structure.

[0038] When achieving the mating fit between the piston and piston rod 601, fixation is achieved through connecting holes and riveting components. Various methods can be used to implement drilling and riveting; this embodiment optimizes and adopts one feasible option: the drilling and riveting module 4 includes a moving component 402, which drives a translating drill 401 and a riveting mechanism 403. The drill 401 also cooperates with a horizontal feed component 405 to move closer to or away from the piston. Using this method, after the drill 401 moves to the corresponding position, it can approach the piston and perform drilling via the horizontal feed component 405. After drilling is complete, it retracts via the feed component. Once drilling is finished, the riveting mechanism 403 performs riveting, achieving the connection and fixation at the hole position.

[0039] Preferably, the drill rod of the drilling rig 401 is provided with a cover 406 to prevent debris from splashing during the drilling process.

[0040] The riveting mechanism 403 can adopt various schemes to fix the corresponding holes of the piston and piston rod 601. Its structure is not limited to one specific one. This embodiment optimizes and adopts one feasible option: the riveting mechanism 403 includes a riveting rod and a vibrating feed plate. The vibrating feed plate is used to feed the riveted parts to a set position, and the riveting rod is used to perform riveting. The riveting rod is also connected to and cooperates with the longitudinal feed assembly 404, and moves closer to the piston to apply force for riveting or moves away from the piston for retraction. When adopting the above scheme, the riveting mechanism 403 is adjusted to be closer to the piston in the longitudinal direction by the longitudinal feed assembly 404. After finding the corresponding empty position, the riveting connection operation can be performed, thereby realizing the connection and fixation of the piston and piston rod 601.

[0041] like Figure 7 As shown, the fourth structure of the automatic processing device provided in this embodiment includes: The piston rod press-fit module 5 is used to install the piston rod 601 onto the piston; the piston rod press-fit module 5 includes a piston rod positioning device 501 and a press-fit drive assembly 502, the press-fit drive assembly 502 is used to apply an axial driving force to the piston rod 601 to fit the piston rod 601 onto the piston.

[0042] Before being assembled to the piston, the piston rod 601 is assisted in being fixed by a piston rod positioning device 501. This embodiment optimizes the process and adopts one feasible option: the piston rod positioning device 501 includes a height adjustment seat 5012, which is used to adjust the piston rod 601 to maintain a horizontal alignment with the piston; the height adjustment seat 5012 is provided with at least two positioning brackets 5011 for supporting the piston rod 601. When adopting the above solution, the height adjustment seat 5012 includes a hydraulic lifting structure, a threaded rod lifting structure, or a pneumatic lifting structure, thereby realizing longitudinal lifting and lowering.

[0043] Preferably, the piston rod 601 and the piston are aligned and fitted together to form the piston assembly 6.

[0044] When pressing the piston rod 601 onto the piston, the following method can be used: The pressing drive assembly 502 includes a pressing base, on which a pressing drive 5021 and a pressure detection assembly 5022 are disposed. The pressing drive 5021 is used to provide axial driving force to the piston rod 601 to fit the piston rod 601 onto the piston. When using the above method, the pressing drive 5021 can be a servo electric cylinder or the like.

[0045] The automated processing device is constructed as a single unit, and its integrity can be improved through various methods. The specific method is not limited to one particular approach. This embodiment optimizes and adopts one feasible option: it also includes a frame module 1. The piston support 2, piston rotation module 3, drilling and riveting module 4, and piston rod pressing module 5 are all fixedly mounted on the frame module 1. When using the above approach, the frame module 1 is an integral frame with a platform on top for bearing loads and installing other structural components. It can be constructed as connecting platforms, mounting holes, etc.

[0046] The automatic processing device disclosed in this embodiment supports and fixes the piston through the piston support seat 2, while the piston rotation module 3 provides circumferential power to realize the rotation adjustment of the piston in the circumferential direction, thereby realizing the switching between drilling and riveting operations; through the axial movement of the piston rod pressing module 5, the piston rod 601 is assembled onto the piston, completing the overall processing and installation of the piston.

[0047] The above are the embodiments listed in this example; however, this example is not limited to the optional embodiments described above; those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments; anyone can derive other various forms of embodiments under the guidance of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example; the scope of protection of this example should be determined by the claims.

Claims

1. An automatic processing device for railway brake cylinder piston assembly, characterized in that, include: Piston support seat (2) is used to fit the piston and press and fix the piston; the piston support seat (2) includes a number of support wheels that support the piston from below, and also includes a pressing mechanism that presses the piston surface from the axial direction. The piston rotation module (3) is used to drive the piston to rotate on its own. The piston rotation module (3) includes a roller for fitting the edge of the piston. The roller is driven by a rotary driver. When the roller rotates, it drives the piston to rotate. The drilling and riveting module (4) is used to drill and rivet the piston. The drilling and riveting module (4) includes a drilling assembly and a riveting assembly that are staggered in the circumferential direction. The drilling assembly and the riveting assembly process the piston on the same circumferential surface. The drilling assembly is used to process the hole structure of the piston from the radial direction. The riveting assembly is used to set the riveting part into the hole structure. A piston rod press-fit module (5) is used to install a piston rod (601) onto a piston; the piston rod press-fit module (5) includes a piston rod positioning device (501) and a press-fit drive assembly (502), the press-fit drive assembly (502) being used to apply an axial driving force to the piston rod (601) to fit the piston rod (601) onto the piston.

2. The automatic processing device for railway brake cylinder piston assembly according to claim 1, characterized in that: It also includes a bench module (1), and the piston support seat (2), piston rotation module (3), drilling and riveting module (4) and piston rod press-fitting module (5) are all fixed on the bench module (1).

3. The automatic processing device for railway brake cylinder piston assembly according to claim 1, characterized in that: The piston support seat (2) also includes a support seat body (201), on which a sliding adjustment seat (203) is provided for connecting and installing support wheels. The support wheels move and adjust with the sliding adjustment seat (203) to adapt to pistons of different sizes. The pressing mechanism is provided on the sliding adjustment seat (203) and moves synchronously with the sliding adjustment seat (203). The pressing mechanism includes a telescopic motor (204) and a pressing block (205). The telescopic motor (204) drives the pressing block (205) to move and press or release the piston.

4. The automatic processing device for railway brake cylinder piston assembly according to claim 3, characterized in that: The sliding adjustment seat (203) is connected to the first slide rail (202) on the support body (201). The support body (201) is provided with a number of positioning holes, and the sliding adjustment seat (203) is provided with a locking hole. When the locking hole and the positioning hole are aligned, they are connected and positioned by a positioning pin (206).

5. The automatic processing device for railway brake cylinder piston assembly according to claim 1, characterized in that: The piston rotation module (3) includes a drive wheel (303) and a stabilizing wheel (305). The drive wheel (303) is connected to the rotary driver and rotates with the rotary driver. The stabilizing wheel (305) is used to fit against the piston and rotate synchronously with the piston.

6. The automatic processing device for railway brake cylinder piston assembly according to claim 5, characterized in that: The piston rotation module (3) also includes a fixed seat (301) and a lifting seat (302). The fixed seat (301) is connected to a lifting driver (306) and used to drive the lifting seat (302) to move. The rotation driver, the drive wheel (303) and the stabilizing wheel (305) are all connected to the lifting seat (302). The movement of the lifting seat (302) drives the drive wheel (303) and the stabilizing wheel (305) to move and fit against or move away from the piston.

7. The automatic processing device for railway brake cylinder piston assembly according to claim 1, characterized in that: The drilling and riveting module (4) includes a moving component (402), which drives a drilling machine (401) and a riveting mechanism (403) to move. The drilling machine (401) also cooperates with a horizontal feed component (405) and moves closer to or away from the piston.

8. The automatic processing device for railway brake cylinder piston assembly according to claim 7, characterized in that: The riveting mechanism (403) includes a riveting rod and a vibrating feeder. The vibrating feeder is used to feed the riveted part to a set position, and the riveting rod is used to perform riveting. The riveting rod is also connected to and cooperates with a longitudinal feed assembly (404), and moves closer to the piston through the longitudinal feed assembly (404) to perform riveting force or moves away from the piston to perform a retraction operation.

9. The automatic processing device for railway brake cylinder piston assembly according to claim 1, characterized in that: The piston rod positioning device (501) includes a height adjustment seat (5012), which is used to adjust the piston rod (601) to keep the piston and piston at the same center level; the height adjustment seat (5012) is provided with at least two positioning brackets (5011) for supporting the piston rod (601).

10. The automatic processing device for railway brake cylinder piston assembly according to claim 9, characterized in that: The press-fit drive assembly (502) includes a press-fit base, on which a press-fit driver (5021) and a pressure detection assembly (5022) are provided. The press-fit driver (5021) is used to provide axial driving force to the piston rod (601) to engage the piston rod (601) with the piston.

Images