A zero segment roller assembly device and a method of assembling the same

Abstract

The application discloses a kind of zero segment roller assembly device and its assembly method, device includes top bed, the front end of the top bed is provided with machine base, the top of the top bed, and close to the end of machine base is provided with slide rail frame, the top of the machine base is provided with telescopic oil cylinder, the output end of the telescopic oil cylinder is located above the front end of machine base.The application is driven by setting telescopic oil cylinder, adopts mechanized assembly method, replaces traditional manual knock installation method, significantly improves assembly efficiency, the automation operation of device reduces manpower demand, also shortens assembly time, can satisfy the demand of large-scale production, and greatly reduces security risk, guarantees the personal safety of operator, since roller, chute and the output end of oil cylinder are in the same axis, this design ensures the alignment accuracy of roller and other components during assembly process, reduces uneven force and offset caused by manual knock, to improve assembly accuracy.

Description

Technical Field

[0001] This invention relates to the field of mechanical assembly and processing technology, specifically to a zero-segment roller assembly device and its assembly method. Background Technology

[0002] The zero-segment roller is an important component of a continuous casting machine, belonging to the zero-segment equipment. In the structure of the continuous casting machine, the zero-segment is located below the crystallizer. Its main function is to support and guide the billet that is in the process of solidification after exiting the crystallizer, ensuring that the billet can be stably conveyed downwards along a predetermined path, preventing problems such as billet deformation and deviation. It is crucial to ensuring the smooth progress of the continuous casting process and the quality of the billet.

[0003] Currently, the assembly of the zero-section rollers in continuous casting machines is entirely manual, using tools such as sledgehammers to hammer the roller sleeves and bearing seats onto the roller shaft. This method is not only inefficient, but also prone to damaging components due to uneven hammering force, resulting in a high defect rate and safety hazards.

[0004] Therefore, it is necessary to invent a zero-segment roller assembly device and its assembly method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a zero-segment roller assembly device and assembly method thereon to address the aforementioned shortcomings mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a zero-segment roller assembly device, the device including a top bed, a base being provided at the front end of the top bed, a slide rail frame being provided above the top bed and near the base, a telescopic hydraulic cylinder being provided above the base, and the output end of the telescopic hydraulic cylinder being located above the front end of the base.

[0007] A slide groove is provided above the slide rail frame, the output end of the telescopic cylinder is located in the slide groove, and a roller is placed in the slide groove above the slide rail frame. The roller, the slide groove, and the output end of the telescopic cylinder are on the same axis.

[0008] A platform is fixedly installed above the support legs of the top bed, and uprights are fixedly installed on both sides above the platform. Multiple sets of limiting blocks are fixed on the inner walls of the two uprights facing each other and near the tail end of the top bed. Each set of limiting blocks is evenly distributed laterally.

[0009] As a preferred embodiment of the present invention, a base is fixedly installed on the upper surface of the base, and a protrusion is provided at the front end of the base. The protrusion is located between two uprights above the front end of the platform. The bottom of the front end of the protrusion is fixedly connected to the front end of the platform by bolts. The telescopic cylinder is provided on the upper surface of the base.

[0010] As a preferred embodiment of the present invention, a plurality of clamps are installed on the upper part of the base, and the two sides of the plurality of clamps are fixedly connected to the two sides of the base by screws. A start-stop switch is fixedly installed on one side of the upper surface of the base, and the start-stop switch is electrically connected to the telescopic cylinder through a controller.

[0011] As a preferred embodiment of the present invention, the front end of the protrusion abuts against the front end of the slide rail frame, and multiple sets of the limiting blocks are arranged sequentially and evenly on the outside of the tail end of the slide rail frame. Both the limiting blocks and the slide rail frame are made of metal.

[0012] As a preferred embodiment of the present invention, pin holes are provided at both ends of the upper part of the stand, and connecting parts are provided on both sides of the upper part of the slide rail frame. Pins are fixedly installed at both ends of the connecting parts. The connecting parts on both sides of the upper part of the slide rail frame overlap the two stands. The pins correspond to the pin holes and are inserted for connection.

[0013] As a preferred embodiment of the present invention, a plurality of storage boxes are fixedly installed above the platform and on the outside of the two stands. Each pair of the limiting blocks forms a group, and an abutment plate is placed inside the storage box. The abutment plate is placed on the front of the corresponding group of limiting blocks.

[0014] A method for assembling a zero-segment roller, employing a zero-segment roller assembly device, wherein the processed roller includes a roller sleeve, a shaft, a spacer sleeve, a cup-shaped ring, a bearing, a flat ring, and a bushing, and the assembly process of the roller includes the following steps:

[0015] S1. Select a suitable slide rail frame according to the size of the roller, and then install the slide rail frame on the stand through the connection of pins and pin holes;

[0016] S2. Place the outer roller sleeve of the roller smoothly into the slide groove of the installed slide rail frame, and ensure that the axis of the roller sleeve is aligned with the axis of the output end of the telescopic cylinder.

[0017] S3. Then place the spacer sleeve at the end of the chute and push the roller sleeve through the output end of the telescopic cylinder to fit the roller sleeve onto the spacer sleeve. Adjust the position of the spacer sleeve in the roller sleeve to ensure its accurate position, so as to ensure the relative position accuracy of each component inside the roller.

[0018] S4. Select a suitable abutment plate in the storage box at the tail end of the top bed, and place the corresponding abutment plate on the front of a set of limit blocks on the inner wall of the upright. The groove on the front of the abutment plate should match the size of the cup-shaped ring of the first component to be installed.

[0019] S5. Place the cup-shaped ring in the groove of the contact plate to ensure that the cup-shaped ring is placed stably. Then start the telescopic cylinder again. The output end of the telescopic cylinder pushes the tail end of the roller sleeve so that the front end of the roller sleeve is sleeved on the outside of the cup-shaped ring.

[0020] S6. Repeat steps 4 and 5 to replace the new contact plate, and place the corresponding components to be installed, such as bearings, flat rings, and bushings, into the slots of the new contact plate in sequence. After each component replacement, restart the telescopic cylinder to push the tail end of the roller sleeve and press each component into the front end of the roller sleeve in sequence to complete the installation of the corresponding components.

[0021] As a preferred embodiment of the present invention, the inside and end of the roller are combined structures, the outside of the roller is a roller sleeve, the inside of the roller sleeve is provided with a spacer sleeve, the front end of the spacer sleeve is provided with a bowl-shaped ring, the front end of the bowl-shaped ring is provided with a bearing, the front end of the bearing is provided with a flat ring, and the front end of the flat ring is provided with a bushing.

[0022] As a preferred embodiment of the present invention, the end of the roller sleeve is provided with a support seat, the end of the shaft is located outside the roller sleeve, and the support seat is connected to the end of the shaft.

[0023] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0024] By setting up a telescopic hydraulic cylinder drive and adopting a mechanized assembly method, the traditional manual hammering installation method is replaced, which significantly improves assembly efficiency. The automated operation of the device reduces the need for manpower and shortens the assembly time, which can meet the needs of large-scale production. It also greatly reduces safety hazards and ensures the personal safety of operators. Since the rollers, chutes and the output end of the hydraulic cylinder are on the same axis, this design ensures the alignment accuracy of the rollers and other components during the assembly process, reduces uneven force and offset caused by manual hammering, and thus improves assembly accuracy.

[0025] This device is designed to process rollers of different specifications. After processing, the rollers are easy to remove, and the positioning during processing is precise and the replacement is quick, which greatly improves processing efficiency, increases the yield, reduces production costs, and improves safety during operation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a first-view perspective perspective view of the overall structure of the present invention;

[0028] Figure 2 This is a second-view perspective perspective view of the overall structure of the present invention;

[0029] Figure 3 This is a cross-sectional view of the overall structure of the present invention;

[0030] Figure 4 This is a first-view exploded view of the overall structure of the present invention;

[0031] Figure 5 This is a first-view exploded view of the overall structure of the present invention;

[0032] Figure 6 This is an exploded view of the roller of the present invention;

[0033] Figure 7 This is an assembly diagram of the overall structure of the roller of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 11. Top of bed; 12. Platform; 13. Support base; 14. Pin hole; 15. Storage box; 16. Limiting block;

[0036] 21. Base; 22. Protrusion; 23. Telescopic cylinder; 24. Start / stop switch; 25. Clamp;

[0037] 31. Slide rail bracket; 32. Slide groove; 33. Connecting part; 34. Pin rod;

[0038] Contact plate;

[0039] 51. Roller; 52. Roller sleeve; 53. Shaft; 54. Spacer sleeve; 55. Bowl-shaped ring; 56. Bearing; 57. Flat ring; 58. Bushing; 59. Support seat. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] This invention provides, for example Figure 1-7 The zero-segment roller assembly device shown includes a top bed 1, a base 2 is provided at the front end of the top bed 1, a slide rail frame 3 is provided above the top bed 1 and near the end of the base 2, and a telescopic cylinder 23 is provided above the base 2, with the output end of the telescopic cylinder 23 located above the front end of the base 2.

[0042] In this example, the top bed 1 serves as the fundamental support component of the entire assembly device, providing a stable mounting platform for other parts. It can withstand various forces generated during assembly, ensuring the stability of the entire device during operation. This allows the assembly of roller 5 to proceed in a stable environment, contributing to improved assembly accuracy. The base 2, located at the front end of the top bed 1, connects and secures important components such as the telescopic cylinder 23. It provides a reliable mounting position for the telescopic cylinder 23, enabling it to operate stably. Furthermore, through its connection with the top bed 1, it effectively transmits the forces generated by the telescopic cylinder 23 to the entire device, ensuring its structural stability.

[0043] A slide groove 31 is provided above the slide rail frame 3. The output end of the telescopic cylinder 23 is located in the slide groove 31. A roller 5 is placed in the slide groove 31 above the slide rail frame 3. The roller 5, the slide groove 31, and the output end of the telescopic cylinder 23 are on the same axis.

[0044] In this example, the slide groove 31 above the slide rail frame 3 provides a track for the placement and movement of the roller 5. The presence of the slide groove 31 allows the roller 5 to move smoothly along a predetermined direction, ensuring the positional accuracy of the roller 5 during assembly and preventing the roller 5 from shifting or wobbling during movement, thus improving assembly accuracy. The telescopic cylinder 23 is a key component for automating the assembly of the roller 5. Through the telescopic movement of its output end, it can accurately push each component of the roller 5 to the installation position, replacing the traditional manual hammering installation method. Compared with manual operation, the thrust of the telescopic cylinder 23 is more uniform and stable, ensuring installation accuracy while improving assembly efficiency and reducing manual labor intensity.

[0045] A platform 11 is fixedly installed above the support legs of the top bed 1. Stands 12 are fixedly installed on both sides above the platform 11. Multiple sets of limiting blocks 15 are fixed on the inner walls of the two stands 12 facing each other and near the tail end of the top bed 1. Each set of limiting blocks 15 is evenly distributed laterally.

[0046] In this example, the support 12 provides support and mounting position for the slide rail frame 3. The pin holes 13 at both ends of the support 12 are inserted into the pins 33 on the connecting part 32 of the slide rail frame 3, ensuring the stability and adjustability of the slide rail frame 3. The even distribution of multiple sets of limiting blocks 15 is mainly for facilitating the insertion of different abutment plates 4. Although the external dimensions of each abutment plate 4 are the same, facilitating insertion between two supports 12, each abutment plate 4 has a slot of a different size on its front side. This slot is mainly used to place different components to be installed on the roller 5, such as the cup-shaped ring 54, bearing 55, and flat ring 56. This allows it to be stably placed on the corresponding slot on the front side of the abutment plate 4, thus facilitating the subsequent pressing of the extrusion cylinder 23's extrusion roller sleeve 51 into the corresponding component on the front side slot of the abutment plate 4.

[0047] Furthermore, in the above technical solution, a base 21 is fixedly installed on the upper surface of the base 2. A protrusion 22 is provided at the front end of the base 21. The protrusion 22 is located between two uprights 12 above the front end of the platform 11. The bottom of the front end of the protrusion 22 is fixedly connected to the front end of the platform 11 by bolts. The telescopic cylinder 23 is set on the upper surface of the base 21. This design not only enhances the connection strength between the base 2 and the platform 11, but also makes the structure of the entire device more compact and better able to withstand the forces generated during the assembly process.

[0048] Furthermore, in the above technical solution, multiple clamps 25 are installed above the base 21. The two sides of the clamps 25 are fixedly connected to the two sides of the base 21 via screws. A start / stop switch 24 is fixedly installed on one side of the upper surface of the machine base 2. The start / stop switch 24 is electrically connected to the telescopic cylinder 23 via a controller, allowing the operator to conveniently control the movement of the telescopic cylinder 23 using the start / stop switch 24. This design makes operation simpler and more flexible, allowing the operator to start or stop the telescopic cylinder 23 in a timely manner according to actual assembly needs, thus improving the controllability of the assembly process.

[0049] In this example, the base 21 is fixedly installed on the upper surface of the base 2, providing a stable mounting foundation for the telescopic cylinder 23. Multiple clamps 25 installed above the base 21 are fixedly connected to both sides of the base 21 via screws, further strengthening the fixation of the telescopic cylinder 23 and preventing it from loosening or shifting during operation, thus ensuring reliable operation of the telescopic cylinder 23.

[0050] Furthermore, in the above technical solution, the front end of the protrusion 22 abuts against the front end of the slide rail 3, and multiple sets of limiting blocks 15 are arranged evenly on the outer side of the tail end of the slide rail 3. Both the limiting blocks 15 and the slide rail 3 are made of metal materials, so that the limiting blocks 15 and the slide rail 3 have sufficient hardness, extend their service life, and avoid deformation of these parts after long-term use.

[0051] Furthermore, in the above technical solution, pin holes 13 are provided at both ends of the upper part of the support 12, and connecting parts 32 are provided on both sides of the upper part of the slide rail frame 3. Pin rods 33 are fixedly installed at both ends of the connecting parts 32. The connecting parts 32 on both sides of the upper part of the slide rail frame 3 overlap on the two supports 12, and the pin rods 33 correspond to the pin holes 13 and are inserted for connection.

[0052] In this example, the slide rail frame 3 is connected to the pin hole 13 on the support 12 via a pin 33 on the connecting part 32. This connection method ensures the stability of the slide rail frame 3 installation and facilitates disassembly and maintenance when needed. When the device needs repair or component replacement, the slide rail frame 3 can be easily disassembled, improving the maintainability of the equipment. Because the slide rail frame 3 is connected to the support 12 through this simple connection method, when assembling rollers 5 of different sizes, a slide rail frame 3 of the corresponding size can be directly replaced. This ensures that rollers 5 of different sizes and the output end of the telescopic cylinder 23 are always on the same axis, preventing deviation when the output end of the telescopic cylinder 23 pushes in components.

[0053] Furthermore, in the above technical solution, several storage boxes 14 are fixedly installed above the platform 11 and outside the two uprights 12. Each pair of limiting blocks 15 forms a group, and a contact plate 4 is placed inside the storage box 14. The contact plate 4 is placed on the front of the corresponding group of limiting blocks 15.

[0054] In this example, the storage box 14 provides a convenient location for placing the contact plate 4. Multiple sets of evenly distributed limiting blocks 15 are set at the tail end of the stand 12. The function of each set of limiting blocks 15 is to place the corresponding contact plate 4. During the assembly of the roller 5, the cup-shaped ring 54 and bearing 55 and other components inside the roller 5 are not all pressed into the roller sleeve 51 at once. Different types of contact plates 4 need to be placed on the front of different sets of limiting blocks 15 to assemble different cup-shaped rings 54 and other components in sequence. The contact plates 4 that are not used temporarily need to be placed in the corresponding storage box 14. Since the contact plate 4 is made of solid steel plate, it is heavy. By placing the unused contact plates 4 in the storage box 14, it can prevent the contact plates 4 from falling accidentally and injuring the operators.

[0055] A method for assembling a zero-segment roller, employing a zero-segment roller assembly device, wherein the processed roller 5 includes a roller sleeve 51, a shaft 52, a spacer sleeve 53, a cup-shaped ring 54, a bearing 55, a flat ring 56, and a bushing 57, and the assembly process of the roller 5 includes the following steps:

[0056] S1. Select a suitable slide rail frame 3 according to the size of the roller 5, and then install the slide rail frame 3 on the stand 12 through the connection of the pin 33 and the pin hole 13.

[0057] S2. Place the outer roller sleeve 51 of the roller 5 smoothly into the slide groove 31 of the installed slide rail frame 3, and ensure that the axis of the roller sleeve 51 is aligned with the output axis of the telescopic cylinder 23.

[0058] S3. Then place the spacer sleeve 53 at the tail end of the slide groove 31, and push the roller sleeve 51 through the output end of the telescopic cylinder 23 to fit the roller sleeve 51 onto the spacer sleeve 53. Adjust the position of the spacer sleeve 53 in the roller sleeve 51 to ensure its position is accurate, so as to ensure the relative position accuracy of each component inside the roller 5.

[0059] S4. Select a suitable contact plate 4 in the storage box 14 at the tail end of the top bed 1, and place the corresponding contact plate 4 on the front of a set of limiting blocks 15 on the inner wall of the stand 12. The groove on the front of the contact plate 4 should match the size of the first component to be installed, the bowl-shaped ring 54.

[0060] S5. Place the cup-shaped ring 54 in the groove of the contact plate 4 to ensure that the cup-shaped ring 54 is placed stably. Then start the telescopic cylinder 23 again. The output end of the telescopic cylinder 23 pushes the tail end of the roller sleeve 51 so that the front end of the roller sleeve 51 is sleeved on the outside of the cup-shaped ring 54.

[0061] S6. Repeat steps 4 and 5 to replace the new contact plate 4, and place the corresponding components to be installed, such as bearing 55, flat ring 56, and bushing 57, into the slots of the new contact plate 4 in sequence. After each component replacement, restart the telescopic cylinder 23 to push the tail end of the roller sleeve 51 and press each component into the front end of the roller sleeve 51 in sequence to complete the installation of the corresponding components.

[0062] Furthermore, in the above technical solution, the inside and end of the roller 5 are combined structures, the outside of the roller 5 is a roller sleeve 51, the inside of the roller sleeve 51 is provided with a spacer sleeve 53, the front end of the spacer sleeve 53 is provided with a bowl-shaped ring 54, the front end of the bowl-shaped ring 54 is provided with a bearing 55, the front end of the bearing 55 is provided with a flat ring 56, and the front end of the flat ring 56 is provided with a bushing 57.

[0063] Furthermore, in the above technical solution, a support seat 58 is provided at the end of the roller sleeve 51, and the end of the shaft 52 is located outside the roller sleeve 51. The support seat 58 is connected to the end of the shaft 52.

[0064] In this example, the outer sleeve 51 of the roller 5 is the main component in contact with the outside world. The spacer sleeve 53 inside the sleeve ensures the accurate relative position between the internal components of the roller 5, thus ensuring the overall structural stability of the roller 5. The cup-shaped ring 54, bearing 55, flat ring 56, and bushing 57 at the front end of the spacer sleeve 53 are connected sequentially, and these components together constitute the rotational and support structure of the roller 5. The cup-shaped ring 54 provides a certain degree of sealing and protection, the bearing 55 provides rotational flexibility, and the flat ring 56 and bushing 57 further enhance the structural stability and wear resistance, enabling the roller 5 to operate stably and reliably during operation.

[0065] The zero-segment roller assembly device and assembly method provided by this invention operate as follows:

[0066] Prepare the corresponding roller 5 components according to the model and specifications of the roller 5 to be assembled, including roller sleeve 51, spacer sleeve 53, cup-shaped ring 54, bearing 55, flat ring 56, bushing 57, support seat 58, and shaft 52. Place these components in appropriate positions according to the assembly sequence for easy access. Select a suitable abutment plate 4 from the storage box 14 according to the installation requirements of each component of roller 5. When selecting, ensure that the groove size matches the component to be installed.

[0067] Insert the slide rail frame 3 into the pin holes 13 at both ends of the upper part of the support 12 through the pins 33 of the connecting parts 32 on both sides above it, so that the slide rail frame 3 overlaps and is fixed on the two supports 12. If the slide rail frame 3 needs to be replaced according to the size of the roller 5 to be assembled, the original slide rail frame 3 can be removed by pulling out the pins 33 and replaced with a new slide rail frame 3 that meets the size requirements, ensuring that the roller 5, the slide groove 31, and the output end of the telescopic cylinder 23 are on the same axis.

[0068] Place the roller sleeve 51 in the groove 31 above the slide rail frame 3, ensuring it is positioned smoothly along the groove 31. Next, insert the spacer sleeve 53 into the roller sleeve 51, ensuring the spacer sleeve 53 is accurately positioned within the roller sleeve 51 to guarantee the relative positional accuracy of the components inside the roller 5. On the inner wall of the stand 12 near the tail end of the top bed 1, according to the assembly sequence, place the selected abutment plates 4 on the front of the corresponding set of limit blocks 15. The slots of the abutment plates 4 are used to place the components to be installed. For example, first place the cup-shaped ring 54 in the slot of the first abutment plate 4, ensuring the cup-shaped ring 54 is stably positioned.

[0069] The operator, standing in a safe position, sends a command to the controller via the start / stop switch 24 on one side of the upper surface of the operating base 2 to activate the telescopic cylinder 23. The output end of the telescopic cylinder 23 extends forward along the slide groove 31, pushing the shaft 52, which in turn presses the roller sleeve 51 towards the contact plate 4. During the movement, the shaft 52 passes sequentially through the spacer sleeve 53, the cup-shaped ring 54, the bearing 55, the flat ring 56, and the bushing 57, pressing these components into the roller sleeve 51 in sequence, completing the installation of one component. Once one component is installed, the telescopic cylinder 23 is stopped, and its output end is retracted. Then, a new contact plate 4 is replaced, and the next component to be installed (such as the bearing 55) is placed in the groove of the new contact plate 4. The telescopic cylinder 23 is activated again, and the above steps are repeated to install each component into the roller sleeve 51 in sequence. After all internal components are installed, the support base 58 is installed at the end of the roller sleeve 51 and connected to other components via the shaft 52, completing the assembly of the entire roller 5.

[0070] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A zero segment roller assembly method, the device for assembling zero segment roller comprises a top bed (1), the front end of the top bed (1) is provided with a base (2), the top of the top bed (1) and close to one end of the base (2) is provided with a slide rail frame (3), the top of the base (2) is provided with a telescopic oil cylinder (23), the output end of the telescopic oil cylinder (23) is located above the front end of the base (2); The top of the slide rail frame (3) is provided with a sliding groove (31), the output end of the telescopic oil cylinder (23) is located in the sliding groove (31), the roller (5) is placed in the sliding groove (31) on the top of the slide rail frame (3), the roller (5) is coaxial with the sliding groove (31) and the output end of the telescopic oil cylinder (23); The top of the support leg of the top bed (1) is fixedly installed with a table plate (11), the top of the table plate (11) is fixedly installed with a stand (12) on both sides, the inner walls of the two stands (12) are fixed with a plurality of limiting blocks (15) close to the tail end of the top bed (1), and each group of limiting blocks (15) is uniformly distributed transversely; The upper surface of the base (2) is fixedly installed with a base (21), the front end of the base (21) is provided with a protruding part (22), the protruding part (22) is located between the two stands (12) above the front end of the table plate (11), the front end of the protruding part (22) is fixedly connected with the front end of the table plate (11) through bolts, and the telescopic oil cylinder (23) is arranged on the upper surface of the base (21); A plurality of hoops (25) are installed above the base (21), the two sides of the plurality of hoops (25) are fixedly connected with the two sides of the base (21) through screw rods, and a start-stop switch (24) is fixedly installed on one side of the upper surface of the base (2). The start-stop switch (24) is electrically connected with the telescopic oil cylinder (23) through a controller; The front end of the protruding part (22) abuts against the front end of the slide rail frame (3), a plurality of limiting blocks (15) are sequentially and uniformly arranged outside the tail end of the slide rail frame (3), and the limiting blocks (15) and the slide rail frame (3) are both made of metal materials; The upper ends of the stands (12) are both provided with pin holes (13), the upper sides of the slide rail frames (3) are provided with connecting parts (32), the both ends of the connecting parts (32) are fixedly installed with pin rods (33), the connecting parts (32) on the upper sides of the slide rail frames (3) are overlapped on the two stands (12), the pin rods (33) correspond to the pin holes (13) and are insertedly connected; The top of the table plate (11) and outside the two stands (12) are fixedly installed with a plurality of storage boxes (14), every two limiting blocks (15) form a group, the storage boxes (14) contain abutting plates (4), and the abutting plates (4) are placed on the front surface of the corresponding group of limiting blocks (15); The roller (5) comprises a roller sleeve (51), a shaft rod (52), a distance sleeve (53), a bowl-shaped ring (54), a bearing (55), a flat ring (56) and a bushing (57), and the assembly process of the roller (5) comprises the following steps: ​ ​ ​ characterized in that ​ S1, according to the size of the roller (5), select the appropriate slide rail frame (3), and then install the slide rail frame (3) on the stand (12) through the connection of the pin rod (33) and the pin hole (13); S2, the outer roller sleeve (51) of the roller (5) is stably placed in the sliding groove (31) of the installed slide rail frame (3), and the axis of the roller sleeve (51) is aligned with the output end axis of the telescopic oil cylinder (23); S3, then place the fixed sleeve (53) at the tail end of the sliding groove (31), and push the roller sleeve (51) through the output end of the telescopic oil cylinder (23), so that the roller sleeve (51) is sleeved with the fixed sleeve (53), and the position of the fixed sleeve (53) in the roller sleeve (51) is adjusted to ensure the accuracy of the position, so as to ensure the relative position accuracy of the internal parts of the roller (5); S4, select the appropriate contact plate (4) in the storage box (14) at the tail end of the top bed (1), and place the corresponding contact plate (4) on the front surface of a group of limit blocks (15) on the inner wall of the stand (12), The front surface slot of the contact plate (4) should match the size of the first to be installed component bowl ring (54); S5, place the bowl ring (54) in the slot of the contact plate (4) and ensure that the bowl ring (54) is stably placed, then start the telescopic oil cylinder (23) again, and the output end of the telescopic oil cylinder (23) pushes the tail end of the roller sleeve (51), so that the front end of the roller sleeve (51) is sleeved outside the bowl ring (54); S6, repeat steps 4 and 5, replace the new contact plate (4), and place the corresponding to be installed components, such as bearing (55), flat ring (56), bushing (57), in the slot of the new contact plate (4) in turn; Each time the component is replaced, the telescopic oil cylinder (23) is started again to push the tail end of the roller sleeve (51), and the components are pressed into the inside of the front end of the roller sleeve (51) in turn, and the installation of the corresponding components is completed.

2. A method of assembling a zero segment roller as claimed in claim 1, wherein: The roller (5) is a combined structure, the roller (5) is a roller sleeve (51), the inside of the roller sleeve (51) is provided with a fixed sleeve (53), the front end of the fixed sleeve (53) is provided with a bowl ring (54), the front end of the bowl ring (54) is provided with a bearing (55), the front end of the bearing (55) is provided with a flat ring (56), and the front end of the flat ring (56) is provided with a bushing (57).

3. A method of assembling a zero segment roller as defined in claim 1, wherein: The end of the roller sleeve (51) is provided with a support seat (58), the end of the shaft rod (52) is located outside the roller sleeve (51), and the support seat (58) is connected with the end of the shaft rod (52).

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