Zero-section roller assembling device and assembling method thereof

Abstract

The zero-section roller assembling device comprises a top bed, a machine base is arranged at the front end of the top bed, a sliding rail frame is arranged at the end, close to the machine base, above the top bed, a telescopic oil cylinder is arranged above the machine base, and the output end of the telescopic oil cylinder is located above the front end of the machine base. The telescopic oil cylinder is arranged for driving, a mechanical assembly mode is adopted, a traditional manual knocking installation method is replaced, the assembly efficiency is remarkably improved, the manpower requirement is reduced through automatic operation of the device, meanwhile, the assembly time is shortened, the requirement of large-scale production can be met, potential safety hazards are greatly reduced, and the production cost is reduced. The roller assembly device guarantees personal safety of operators, due to the fact that the roller, the sliding groove and the output end of the oil cylinder are located on the same axis, the alignment precision of the roller and other parts in the assembly process is guaranteed through the design, uneven force and deviation caused by manual knocking are reduced, and therefore assembly precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical assembly and processing, and in particular to a zero-segment roller assembly device and an assembly method thereof. Background Art

[0002] The zero-segment roller is an important component of the continuous casting machine and is part of 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 in the solidification process coming out of the crystallizer, ensuring that the billet can be stably transported downward along the established path, preventing the billet from deformation, deviation and other problems, which is crucial to ensure the smooth progress of the continuous casting process and the quality of the billet.

[0003] When assembling the existing continuous casting machine zero-section roller, the roller installation is completely done manually, using tools such as sledgehammers and hammers to knock the roller sleeve and bearing seat onto the roller shaft. The above operation method is not only inefficient, but also has low installation accuracy due to uneven knocking force each time, which can easily damage the parts, resulting in a high defective rate and potential safety hazards.

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

[0005] The object of the present invention is to provide a zero-segment roller assembly device and an assembly method thereof to solve the above-mentioned deficiencies mentioned in the background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a zero-segment roller assembly device, the device comprises a top bed, a machine base is arranged at the front end of the top bed, a slide rail frame is arranged above the top bed and at one end close to the machine base, a telescopic oil cylinder is arranged above the machine base, and the output end of the telescopic oil cylinder is located above the front end of the machine base; A slide slot is provided above the slide rail frame, the output end of the telescopic oil cylinder is located in the slide slot, a roller is placed in the slide slot above the slide rail frame, and the roller, the slide slot and the output end of the telescopic oil cylinder are on the same axis; A table top is fixedly installed above the supporting legs of the top bed, and stands are fixedly installed on both sides above the table top. Multiple groups of limit blocks are fixed on the inner walls facing each other and near the rear end of the top bed, and each group of limit blocks is evenly distributed laterally.

[0007] As a preferred embodiment of the present invention, a base is fixedly installed on the upper surface of the machine base, a protrusion is provided at the front end of the base, the protrusion is located between two seats above the front end of the table plate, the front end bottom of the protrusion is fixedly connected to the front end of the table plate by bolts, and the telescopic cylinder is provided on the upper surface of the base.

[0008] As a preferred embodiment of the present invention, a plurality of clamps are installed above the base, and the two sides of the plurality of clamps are fixedly connected to the two sides of the base through 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.

[0009] As a preferred solution of the present invention, the front end of the protrusion conflicts with the front end of the slide rail frame, and multiple groups of limit blocks are uniformly arranged in sequence outside the rear end of the slide rail frame. The limit blocks and the slide rail frame are both made of metal material.

[0010] As a preferred solution of the present invention, pin holes are provided at both ends of the upper part of the stand, connecting parts are provided on both sides of the upper part of the slide rail frame, pin rods 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 are overlapped on the two stands, the pin rods correspond to the pin holes, and are inserted and connected.

[0011] As a preferred solution of the present invention, a plurality of storage boxes are fixedly installed above the table top and on the outside of the two seats, and each two of the limit blocks form a group. A resistance plate is placed in the storage box, and the resistance plate is placed on the front of the corresponding group of limit blocks.

[0012] A zero-segment roller assembly method adopts a zero-segment roller assembly device. The processed roller includes a roller sleeve, a shaft rod, a distance sleeve, a bowl ring, a bearing, a flat ring and a bushing. The roller assembly process includes the following steps: S1. According to the size of the roller, a suitable slide rail frame is selected, and then the slide rail frame is installed on the stand through the connection of the pin rod and the pin hole; S2. Place the outer roller sleeve of the roller stably in 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; S3, then place the distance sleeve at the tail end of the slide, and push the roller sleeve through the output end of the telescopic cylinder, connect the roller sleeve to the distance sleeve, and adjust the position of the distance sleeve in the roller sleeve to ensure its accurate position, so as to ensure the relative position accuracy of various components inside the roller; S4. Select a suitable abutment plate from the storage box at the end of the top bed, and place the corresponding abutment plate on the front of a set of limit blocks corresponding to the inner wall of the stand. The front notch of the abutment plate should match the size of the bowl-shaped ring of the first component to be installed. S5. Place the bowl-shaped ring in the notch of the abutment plate to ensure that the bowl-shaped ring is stably placed, and then start the telescopic cylinder again. The output end of the telescopic cylinder pushes the rear end of the roller sleeve so that the front end of the roller sleeve is sleeved on the outside of the bowl-shaped ring. S6. Repeat steps 4 and 5 to replace the new contact plate, and place the corresponding parts to be installed, such as bearings, flat rings, and bushings, in the grooves of the new contact plate. After each replacement of parts, start the telescopic cylinder again, push the rear end of the roller sleeve, and press each part into the front end of the roller sleeve in turn to complete the installation of the corresponding parts.

[0013] As a preferred embodiment of the present invention, the interior and end of the roller are a combined structure, the exterior of the roller is a roller sleeve, a distance sleeve is arranged inside the roller sleeve, a bowl-shaped ring is arranged at the front end of the distance sleeve, a bearing is arranged at the front end of the bowl-shaped ring, a flat ring is arranged at the front end of the bearing, and a bushing is arranged at the front end of the flat ring.

[0014] As a preferred solution of the present invention, a support seat is provided at the end of the roller sleeve, the end of the shaft rod is located outside the roller sleeve, and the support seat is connected to the end of the shaft rod.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are: By setting up a telescopic oil cylinder drive and adopting a mechanized assembly method, the traditional manual knocking installation method is replaced, which significantly improves the assembly efficiency. The automated operation of the device reduces the manpower demand and shortens the assembly time, which can meet the needs of large-scale production and greatly reduce safety hazards, ensuring the personal safety of operators. Since the roller, chute and the output end of the oil cylinder are on the same axis, this design ensures the alignment accuracy of the roller and other components during the assembly process, reduces the uneven force and offset caused by manual knocking, and thus improves the assembly accuracy; The design of this device can meet the processing needs of rollers of different specifications. It is easy to remove after processing, and the positioning is accurate during processing and the replacement is fast, which greatly improves the processing efficiency and the yield rate, can reduce production costs, and improve safety during the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A first perspective stereogram of the overall structure of the present invention; Figure 2 A second perspective stereogram of the overall structure of the present invention; Figure 3 It is a cross-sectional view of the overall structure of the present invention; Figure 4 It is an exploded view from the first perspective of the overall structure of the present invention; Figure 5 It is an exploded view from the first perspective of the overall structure of the present invention; Figure 6 An exploded view of the roller of the present invention; Figure 7 It is an assembly diagram of the overall structure of the roller of the present invention.

[0018] Description of reference numerals: Top bed; 11. Table top; 12. Support seat; 13. Pin hole; 14. Storage box; 15. Limit block; Machine base; 21. Base; 22. Raised part; 23. Telescopic oil cylinder; 24. Start / stop switch; 25. Hoop; Slide rail frame; 31, slide groove; 32, connecting part; 33, pin rod; Resistance plate; Roller; 51, roller sleeve; 52, shaft; 53, distance sleeve; 54, bowl ring; 55, bearing; 56, flat ring; 57, bushing; 58, support seat. DETAILED DESCRIPTION

[0019] In order 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.

[0020] The present invention provides Figure 1-7 A zero-segment roller assembly device is shown, the device comprises a top bed 1, a base 2 is arranged at the front end of the top bed 1, a slide rail frame 3 is arranged above the top bed 1 and at one end close to the base 2, a telescopic oil cylinder 23 is arranged above the base 2, and the output end of the telescopic oil cylinder 23 is located above the front end of the base 2; In this example, the top bed 1 serves as the basic support component of the entire assembly device, providing a stable installation platform for other components. It can withstand various forces generated during the assembly process, ensure the stability of the entire device during operation, and enable the assembly of the roller 5 to be carried out in a stable environment, which helps to improve the assembly accuracy. The machine base 2 is arranged at the front end of the top bed 1, and plays the role of connecting and fixing important components such as the telescopic cylinder 23. It provides a reliable installation position for the telescopic cylinder 23, allowing the telescopic cylinder 23 to work stably, and through the connection with the top bed 1, the force generated by the telescopic cylinder 23 is reasonably transmitted to the entire device, ensuring the structural stability of the device.

[0021] A slide groove 31 is provided above the slide rail frame 3, and the output end of the telescopic oil 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, and the roller 5, the slide groove 31, and the output end of the telescopic oil cylinder 23 are on the same axis; In this example, the slide groove 31 provided above the slide rail frame 3 provides a track for the placement and movement of the roller 5. The existence of the slide groove 31 enables the roller 5 to move smoothly along the predetermined direction, ensures the position accuracy of the roller 5 during the assembly process, avoids the roller 5 from offsetting or shaking during the movement, and is beneficial to improving the accuracy of the assembly. The telescopic cylinder 23 is a key component for realizing the automation of the assembly of the roller 5. Through the telescopic action of the output end, it can accurately push the various components of the roller 5 to the installation position, replacing the traditional manual knocking installation method. Compared with manual operation, the thrust of the telescopic cylinder 23 is more uniform and stable, which can ensure the installation accuracy, while improving the assembly efficiency and reducing the labor intensity. A table top 11 is fixedly installed above the supporting legs of the top bed 1, and seats 12 are fixedly installed on both sides above the table top 11. Multiple groups of limit blocks 15 are fixed on the inner walls facing each other and near the rear end of the top bed 1, and each group of limit blocks 15 is evenly distributed laterally.

[0022] In this example, the stand 12 provides support and installation position for the slide rail frame 3. The pin holes 13 opened at both ends above the stand 12 are connected with the pin rods 33 on the connecting part 32 of the slide rail frame 3 by plugging, which ensures the stability and adjustability of the slide rail frame 3. The uniform distribution of multiple groups of limit blocks 15 is mainly used to facilitate the insertion of different contact plates 4. Although the external dimensions of each contact plate 4 are the same, which makes it convenient to insert between the two stands 12, the front of each contact plate 4 is provided with notches of different sizes, which are mainly used to place different parts that need to be installed on the roller 5, such as bowl-shaped rings 54, bearings 55, flat rings 56 and other parts. It can be stably placed on the front notch of the corresponding contact plate 4, which makes it convenient for the subsequent telescopic cylinder 23 to squeeze the roller sleeve 51 and the corresponding parts on the front notch of the contact plate 4 to be pressed in.

[0023] Furthermore, in the above technical solution, a base 21 is fixedly installed on the upper surface of the machine base 2, and a protrusion 22 is provided at the front end of the base 21. The protrusion 22 is located between the two stands 12 above the front end of the table plate 11, and the front end bottom of the protrusion 22 is fixedly connected to the front end of the table plate 11 by bolts, and the telescopic cylinder 23 is provided on the upper surface of the base 21. This design not only enhances the connection strength between the machine base 2 and the table plate 11, but also makes the structure of the entire device more compact and can better withstand the force generated during the assembly process.

[0024] Furthermore, in the above technical solution, a plurality of clamps 25 are installed above the base 21, and the two sides of the plurality of clamps 25 are fixedly connected to the two sides of the base 21 through screws, and a start-stop switch 24 is fixedly installed on one side of the upper surface of the base 2, and the start-stop switch 24 is electrically connected to the telescopic cylinder 23 through a controller, and the operator can conveniently control the movement of the telescopic cylinder 23 through the start-stop switch 24. This design makes the operation more convenient and flexible, and the operator can start or stop the telescopic cylinder 23 in time according to the actual assembly requirements, thereby improving the controllability of the assembly process.

[0025] In this example, the base 21 is fixedly mounted on the upper surface of the base 2, providing a stable mounting base for the telescopic oil cylinder 23. A plurality of hoops 25 mounted above the base 21 are fixedly connected to both sides of the base 21 through screws, which can further strengthen the fixation of the telescopic oil cylinder 23, prevent it from loosening or displacement during operation, and ensure that the telescopic oil cylinder 23 can work reliably.

[0026] Furthermore, in the above technical solution, the front end of the protrusion 22 conflicts with the front end of the slide rail frame 3, and multiple groups of limit blocks 15 are uniformly arranged in sequence outside the rear end of the slide rail frame 3. The limit blocks 15 and the slide rail frame 3 are both made of metal materials, so that the structures such as the limit blocks 15 and the slide rail frame 3 have sufficient hardness, extend the service life, and avoid deformation of these components after long-term use.

[0027] Furthermore, in the above technical solution, pin holes 13 are provided at both ends of the upper side of the stand 12, connecting parts 32 are provided on both sides of the upper side of the slide rail frame 3, and pin rods 33 are fixedly installed at both ends of the connecting parts 32. The connecting parts 32 on both sides of the upper side of the slide rail frame 3 are overlapped on the two stands 12, and the pin rods 33 correspond to the pin holes 13 and are inserted and connected.

[0028] In this example, the slide frame 3 is connected to the pin hole 13 on the stand 12 by means of the pin rod 33 on the connecting portion 32. This connection method not only ensures the stability of the installation of the slide frame 3, but also facilitates the disassembly and maintenance of the slide frame 3 when necessary. When the device needs to be repaired or parts replaced, the slide frame 3 can be easily removed, thereby improving the maintainability of the equipment. Since the slide frame 3 is connected to the stand 12 by means of this simple connection method, when rollers 5 of different sizes are subsequently assembled, the slide frame 3 of the corresponding size can be directly replaced, so that rollers 5 of different sizes and the output end of the telescopic cylinder 23 can always be on the same axis, thereby avoiding deviations in the output end of the telescopic cylinder 23 when the parts are pushed in. Furthermore, in the above technical solution, a plurality of storage boxes 14 are fixedly installed above the table top 11 and on the outer sides of the two stands 12, with each two limit blocks 15 forming a group. A resistance plate 4 is placed in the storage box 14, and the resistance plate 4 is placed on the front side of the corresponding group of limit blocks 15.

[0029] In this example, the storage box 14 provides a convenient location for placing the contact plate 4. A plurality of groups of evenly distributed limit blocks 15 are provided at the rear end of the stand 12. The function of each group of limit blocks 15 is to place the corresponding contact plate 4. In the process of assembling the roller 5, not all the components such as the bowl-shaped ring 54 and the bearing 55 in the roller 5 are pressed into the roller sleeve 51 at one time. It is necessary to place different types of contact plates 4 on the front of different groups of limit blocks 15 to assemble different bowl-shaped rings 54 and other components in sequence. Then, the contact plates 4 that are not needed temporarily need to be placed in the corresponding storage box 14. Since the contact plates 4 are made of solid steel plates, they are heavy. Placing the unused contact plates 4 in the storage box 14 can prevent the contact plates 4 from accidentally falling and injuring the operator.

[0030] A zero-segment roller assembly method, using a zero-segment roller assembly device, the processed roller 5 includes a roller sleeve 51, a shaft 52, a distance sleeve 53, a bowl 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: 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 by connecting the pin rod 33 and the pin hole 13; S2, stably placing the outer roller sleeve 51 of the roller 5 in the slide groove 31 of the installed slide rail frame 3, and ensuring that the axis of the roller sleeve 51 is aligned with the axis of the output end of the telescopic cylinder 23; S3, then place the distance sleeve 53 at the tail end of the slide 31, and push the roller sleeve 51 through the output end of the telescopic cylinder 23, so that the roller sleeve 51 is sleeved on the distance sleeve 53, and adjust the position of the distance sleeve 53 in the roller sleeve 51 to ensure its accurate position, so as to ensure the relative position accuracy of the internal components of the roller 5; S4. Select a suitable abutment plate 4 from the storage box 14 at the rear end of the top bed 1, and place the corresponding abutment plate 4 on the front of a set of stop blocks 15 corresponding to the inner wall of the stand 12. The front notch of the abutment plate 4 should match the size of the first bowl-shaped ring 54 to be installed. S5, placing the bowl-shaped ring 54 in the notch of the abutment plate 4, ensuring that the bowl-shaped ring 54 is stably placed, and then starting the telescopic cylinder 23 again, so that the output end of the telescopic cylinder 23 pushes the rear end of the roller sleeve 51, so that the front end of the roller sleeve 51 is sleeved on the outside of the bowl-shaped ring 54; S6, repeat steps 4 and 5, replace the new contact plate 4, and place the corresponding components to be installed, such as the bearing 55, the flat ring 56, and the bushing 57 in sequence in the notches of the new contact plate 4. After each replacement of the components, start the telescopic oil cylinder 23 again, push the rear 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.

[0031] Furthermore, in the above technical solution, the interior and the end of the roller 5 are a combined structure, the exterior of the roller 5 is a roller sleeve 51, a distance sleeve 53 is arranged inside the roller sleeve 51, a bowl-shaped ring 54 is arranged at the front end of the distance sleeve 53, a bearing 55 is arranged at the front end of the bowl-shaped ring 54, a flat ring 56 is arranged at the front end of the bearing 55, and a bushing 57 is arranged at the front end of the flat ring 56.

[0032] Furthermore, in the above technical solution, a support seat 58 is provided at the end of the roller sleeve 51 , the end of the shaft rod 52 is located outside the roller sleeve 51 , and the support seat 58 is connected to the end of the shaft rod 52 .

[0033] In this example, the roller sleeve 51 outside the roller 5 is the main component in contact with the outside world, and the spacer sleeve 53 arranged inside the roller 5 can ensure the relative position between the components inside the roller 5 is accurate, ensuring the overall structural stability of the roller 5. The bowl-shaped ring 54, bearing 55, flat ring 56 and bushing 57 at the front end of the spacer sleeve 53 are connected in sequence, and these components together constitute the rotation and support structure of the roller 5. The bowl-shaped ring 54 can play a certain sealing and protective role, the bearing 55 provides the flexibility of rotation, and the flat ring 56 and bushing 57 further enhance the stability and wear resistance of the structure, so that the roller 5 can operate stably and reliably during the working process.

[0034] The zero-segment roller assembly device and the assembly method thereof provided by the present invention, when in use, have the following working process: According to the model and specification of the roller 5 to be assembled, prepare the corresponding roller 5 components, including roller sleeve 51, distance sleeve 53, bowl ring 54, bearing 55, flat ring 56, bushing 57, support seat 58 and shaft 52. Place these components in the appropriate position in the assembly order for easy access. According to the installation requirements of the various components of the roller 5, select the appropriate contact plate 4 from the storage box 14. When selecting, ensure that the notch size matches the component to be installed.

[0035] Insert the pins 33 of the upper connecting parts 32 of the slide rail frame 3 into the pin holes 13 at the two ends of the upper base 12, so that the slide rail frame 3 is overlapped and fixed on the two bases 12. According to the size of the roller 5 to be assembled, if the slide rail frame 3 needs to be replaced, the pins 33 can be pulled out, the original slide rail frame 3 can be removed, and a new slide rail frame 3 that meets the size requirements can be replaced to ensure that the roller 5 is on the same axis as the output end of the slide slot 31 and the telescopic cylinder 23.

[0036] Place the roller sleeve 51 in the slide groove 31 above the slide rail frame 3 so that it can be placed stably along the slide groove 31. Next, insert the distance sleeve 53 into the roller sleeve 51 to ensure that the distance sleeve 53 is accurately positioned in the roller sleeve 51 to ensure the relative position 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, place the selected abutment plate 4 on the front of a corresponding set of limit blocks 15 according to the assembly sequence. The notch of the abutment plate 4 is used to place the parts to be installed. For example, first place the bowl-shaped ring 54 in the notch of the first abutment plate 4 to ensure that the bowl-shaped ring 54 is stably placed.

[0037] The operator stands in a safe position and sends a command to the controller by operating the start-stop switch 24 on one side of the upper surface of the base 2 to start the telescopic cylinder 23. The output end of the telescopic cylinder 23 extends forward along the slide 31, pushing the shaft 52, and then squeezing the roller sleeve 51 to move toward the contact plate 4. During the movement, the shaft 52 passes through the distance sleeve 53, the bowl ring 54, the bearing 55, the flat ring 56 and the bushing 57 in turn, and presses these components into the roller sleeve 51 in turn to complete the installation of a component. When a 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 notch of the new contact plate 4, and the telescopic cylinder 23 is started again. Repeat the above steps to install each component into the roller sleeve 51 in turn. When all internal components are installed, the support seat 58 is installed at the end of the roller sleeve 51, connected with other components through the shaft 52, and the assembly of the entire roller 5 is completed.

[0038] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that 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 above 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 device, comprising a top bed (1), characterized in that: A machine base (2) is arranged at the front end of the top bed (1), a slide rail frame (3) is arranged above the top bed (1) and at one end close to the machine base (2), a telescopic oil cylinder (23) is arranged above the machine base (2), and an output end of the telescopic oil cylinder (23) is located above the front end of the machine base (2); A slide groove (31) is provided above the slide rail frame (3), the output end of the telescopic oil 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), and the roller (5) and the slide groove (31) and the output end of the telescopic oil cylinder (23) are located on the same axis; A table top (11) is fixedly mounted above the supporting legs of the top bed (1), and stands (12) are fixedly mounted on both sides above the table top (11). A plurality of groups of limit blocks (15) are fixed on the inner walls facing each other of the two stands (12) and near the rear end of the top bed (1), and each group of limit blocks (15) is evenly distributed laterally.

2. A zero-segment roller assembly device according to claim 1, characterized in that: A base (21) is fixedly mounted on the upper surface of the machine base (2); a protrusion (22) is provided at the front end of the base (21); the protrusion (22) is located between two upright seats (12) above the front end of the table plate (11); the front end bottom of the protrusion (22) is fixedly connected to the front end of the table plate (11) by bolts; and the telescopic oil cylinder (23) is provided on the upper surface of the base (21).

3. A zero-segment roller assembly device according to claim 2, characterized in that: A plurality of hoops (25) are installed above the base (21), and two sides of the plurality of hoops (25) are fixedly connected to 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), and the start-stop switch (24) is electrically connected to the telescopic oil cylinder (23) via a controller.

4. The zero-segment roller assembly device according to claim 2, characterized in that: The front end of the protrusion (22) contacts the front end of the slide rail frame (3), and a plurality of groups of the limit blocks (15) are arranged uniformly on the outside of the rear end of the slide rail frame (3). The limit blocks (15) and the slide rail frame (3) are both made of metal material.

5. The zero-segment roller assembly device according to claim 1, characterized in that: Pin holes (13) are provided at both ends of the upper side of the stand (12); connecting parts (32) are provided at both sides of the upper side of the slide rail frame (3); pin rods (33) are fixedly installed at both ends of the connecting part (32); the connecting parts (32) at both sides of the upper side of the slide rail frame (3) are overlapped on the two stands (12); the pin rods (33) correspond to the pin holes (13) and are plug-connected.

6. The zero-segment roller assembly device according to claim 1, characterized in that: A plurality of storage boxes (14) are fixedly installed above the table (11) and outside the two stands (12), with each two of the limit blocks (15) forming a group. A resistance plate (4) is placed in the storage box (14), and the resistance plate (4) is placed on the front side of a corresponding group of limit blocks (15).

7. A zero-segment roller assembly method, using a zero-segment roller assembly device as claimed in any one of claims 1 to 6, wherein the roller (5) comprises a roller sleeve (51), a shaft (52), a distance sleeve (53), a bowl ring (54), a bearing (55), a flat ring (56) and a bushing (57), characterized in that: The assembly process of the roller (5) comprises the following steps: S1. Selecting a suitable slide rail frame (3) according to the size of the roller (5), and then installing the slide rail frame (3) on the stand (12) by connecting the pin rod (33) and the pin hole (13); S2, stably placing the outer roller sleeve (51) of the roller (5) in the slide groove (31) of the installed slide rail frame (3), and ensuring that the axis of the roller sleeve (51) is aligned with the axis of the output end of the telescopic cylinder (23); S3, then placing the distance sleeve (53) at the tail end of the slide groove (31), and pushing the roller sleeve (51) through the output end of the telescopic oil cylinder (23), so that the roller sleeve (51) is sleeved on the distance sleeve (53), and adjusting the position of the distance sleeve (53) in the roller sleeve (51) to ensure that the position is accurate, so as to ensure the relative position accuracy of various components inside the roller (5); S4. Select a suitable abutment plate (4) from the storage box (14) at the rear end of the top bed (1), and place the corresponding abutment plate (4) on the front side of a set of stop blocks (15) corresponding to the inner wall of the stand (12). The front notch of the abutment plate (4) should match the size of the first bowl-shaped ring (54) to be installed. S5, placing the bowl-shaped ring (54) in the notch of the abutment plate (4), ensuring that the bowl-shaped ring (54) is stably placed, and then starting the telescopic cylinder (23) again, so that the output end of the telescopic cylinder (23) pushes the rear end of the roller sleeve (51), so that the front end of the roller sleeve (51) is sleeved on the outside of the bowl-shaped ring (54); S6. Repeat steps 4 and 5 to replace the new contact plate (4), and place the corresponding components to be installed, such as the bearing (55), the flat ring (56), and the bushing (57), in the grooves of the new contact plate (4) in sequence; after each replacement of the components, start the telescopic cylinder (23) again to push the rear 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.

8. A zero-segment roller assembly method according to claim 7, characterized in that: The interior and the end of the roller (5) are a combined structure. The exterior of the roller (5) is a roller sleeve (51). A distance sleeve (53) is provided inside the roller sleeve (51). A bowl-shaped ring (54) is provided at the front end of the distance sleeve (53). A bearing (55) is provided at the front end of the bowl-shaped ring (54). A flat ring (56) is provided at the front end of the bearing (55). A bushing (57) is provided at the front end of the flat ring (56).

9. A zero-segment roller assembly method according to claim 7, characterized in that: A support seat (58) is provided at the end of the roller sleeve (51), the end of the shaft rod (52) is located outside the roller sleeve (51), and the support seat (58) is connected to the end of the shaft rod (52).

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