Clamping tool for calendering roller machining

Abstract

The utility model relates to a clamping tool for calendaring roller machining, which comprises a working table, a conveyor is arranged on the working table, the conveyor is provided with a conveying belt for conveying calendaring rollers, the conveying belt is provided with a plurality of groups of rubber fixing sheets for positioning the calendaring rollers, and two supporting columns are oppositely arranged on the working table; a lifting mechanism is arranged on the supporting column, a shell is arranged at the bottom of the lifting mechanism, two moving tables are arranged at the bottom of the shell in a relatively sliding mode, rotating shafts are rotationally arranged on the opposite sides of the two moving tables, and a power unit is arranged on the shell. Through cooperation of the conveyor, the moving table, the pneumatic clamping jaw, the driving piece and the power unit, the calendering rollers can be automatically conveyed to the clamping position to be clamped, the machined calendering rollers are automatically loosened and conveyed away after machining is completed, continuous and automatic clamping of the multiple calendering rollers is achieved, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] This application relates to the field of calender roll processing technology, and in particular to a clamping fixture for calender roll processing. Background Technology

[0002] During the production and maintenance of calender rolls, clamping equipment is needed to securely fix the calender rolls to ensure that the processing operations can be carried out accurately and efficiently.

[0003] Currently, most existing clamping devices are designed to clamp and fix a single calender roll, which is inconvenient to operate when multiple calender rolls need to be processed and maintained continuously.

[0004] Specifically, after a calender roll is processed using a clamping device, manual intervention is required to process the next calender roll. The processed calender roll is removed from the clamping device, and a new calender roll to be processed is placed and clamped. This process is time-consuming and labor-intensive, and the efficiency of the operation is relatively low, affecting the continuity and efficiency of the production process.

[0005] To address the aforementioned issues, a clamping fixture for calender roll processing is now designed. Utility Model Content

[0006] This application provides a clamping fixture for processing calender rolls, which solves the problem that most existing clamping devices in the related art are designed to clamp and fix a single calender roll, making operation inconvenient when multiple calender rolls need to be processed and maintained continuously.

[0007] In a first aspect, a clamping fixture for processing calender rolls is provided, comprising:

[0008] A workbench is provided with a conveyor, which has a conveyor belt for conveying calender rolls and multiple sets of rubber fixing plates for positioning the calender rolls on the conveyor belt.

[0009] Two support columns are arranged opposite each other on the workbench. A lifting mechanism is provided on the support columns. A housing is provided at the bottom of the lifting mechanism. The lifting mechanism is used to drive the housing to rise and fall. Two movable platforms are slidably arranged opposite each other at the bottom of the housing. A rotating shaft is rotatably provided on one side of each of the two movable platforms. A pneumatic gripper is provided on the other side of the rotating shaft. A driving component is provided on one of the movable platforms. The driving component is used to drive the rotating shaft to rotate.

[0010] The housing is equipped with a power unit, which is used to drive the two mobile platforms to move closer to or further apart from each other.

[0011] In some embodiments, the conveyor includes columns arranged opposite to each other at both ends of the workbench, a mounting frame is provided above the columns, and drive wheels are rotatably provided at both ends of the mounting frame. The conveyor belt is driven on the two drive wheels. A drive motor and a reducer are provided on the mounting frame. The output shaft of the drive motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to one of the drive wheels.

[0012] Multiple auxiliary rollers located inside the conveyor belt are rotatably arranged between the mounting frames. The multiple auxiliary rollers are arranged symmetrically up and down, and the surface of the auxiliary rollers is in contact with the inner side of the conveyor belt.

[0013] In some embodiments, the number of rubber fixing pieces in a set is two, with the two rubber fixing pieces on the same side arranged opposite each other, and the two rubber fixing pieces on the same side forming an arc shape to accommodate the calendering roll.

[0014] In some embodiments, the lifting mechanism includes a crossbeam mounted on two support columns, the crossbeam having multiple through holes, an electric push rod mounted on the crossbeam, and the piston rod of the electric push rod passing through the through holes and connected to the housing.

[0015] The lifting mechanism also includes two guide columns that are disposed opposite to each other on the housing, with the top of the guide columns passing through corresponding through holes and extending to the top of the crossbeam.

[0016] In some embodiments, the movable stage includes a movable plate slidably arranged at the bottom of the housing, two transmission rods are arranged opposite each other at the bottom of the movable plate, and a mounting base is provided on the other side of the transmission rods. Both the movable plate and the transmission rods are L-shaped.

[0017] The rotating shaft is rotatably mounted on the mounting base, and the two pneumatic grippers are located between the two mounting bases.

[0018] In some embodiments, the drive unit includes a second reducer mounted on a side mounting base, a second drive motor mounted on the second reducer, the output shaft of the second drive motor being connected to the input shaft of the second reducer, and the output shaft of the second reducer being connected to the end of a side rotating shaft away from the pneumatic gripper.

[0019] In some embodiments, the power unit includes two lead screws coaxially disposed inside the housing, the two lead screws having opposite thread directions, a movable cylinder threaded onto the lead screw, a fixed plate disposed at the bottom of the movable cylinder, a sliding hole being provided at the bottom of the housing, and the bottom end of the fixed plate passing through the sliding hole and connected to the corresponding movable plate;

[0020] The power unit also includes a drive motor three and a reducer three mounted on the housing. The output shaft of the reducer three is connected to one end of two coaxial lead screws, and the other end of the two coaxial lead screws is rotatably connected to the inner wall of the housing.

[0021] This application provides a clamping fixture for processing calender rolls. Through the cooperation of a conveyor and a moving table, pneumatic grippers, a drive unit and a power unit, the calender rolls can be automatically transported to the clamping position and clamped. After processing, the fixture is automatically released and transported away. This realizes continuous automatic clamping of multiple calender rolls, which greatly improves processing efficiency, reduces manual intervention and lowers labor costs.

[0022] The rubber fixing plates on the conveyor belt can accurately position the calendering rolls, ensuring that the calendering rolls remain stable during the conveying process, facilitating accurate clamping by the clamping device, and improving processing accuracy.

[0023] The power unit can drive two moving tables to move closer or further apart, adapting to calendering rolls of different sizes. The pneumatic grippers offer flexible and reliable clamping capabilities to meet various processing requirements. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A three-dimensional structural illustration provided for an embodiment of this application. Figure 1 ;

[0026] Figure 2 A three-dimensional structural illustration provided for an embodiment of this application. Figure 2 ;

[0027] Figure 3 A three-dimensional structural illustration provided for an embodiment of this application. Figure 3 ;

[0028] Figure 4 A three-dimensional schematic diagram of the lifting mechanism and housing connection structure provided in the embodiments of this application;

[0029] Figure 5 This is a left sectional view of the conveyor provided in an embodiment of this application.

[0030] In the diagram: 1. Workbench; 2. Conveyor; 21. Conveyor belt; 22. Rubber fixing plate; 23. Column; 24. Mounting frame; 25. Drive wheel; 26. Auxiliary roller; 3. Support column; 4. Lifting mechanism; 41. Crossbeam; 42. Electric push rod; 43. Guide column; 5. Housing; 6. Moving platform; 61. Moving plate; 62. Transmission rod; 63. Mounting base; 7. Rotating shaft; 8. Pneumatic gripper; 9. Drive component; 10. Power unit; 101. Lead screw; 102. Moving cylinder; 103. Fixing plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] This application provides a clamping fixture for processing calender rolls, which solves the problem that most existing clamping devices in the related art are designed to clamp and fix a single calender roll, making operation inconvenient when multiple calender rolls need to be processed and maintained continuously.

[0033] Please see Figures 1-3 A clamping fixture for processing calender rolls includes: a worktable 1 on which a conveyor 2 is mounted, the conveyor 2 having a conveyor belt 21 for conveying calender rolls, and multiple sets of rubber fixing plates 22 for positioning calender rolls mounted on the conveyor belt 21; two support columns 3 opposite to each other on the worktable 1, a lifting mechanism 4 mounted on the support columns 3, a housing 5 at the bottom of the lifting mechanism 4 for driving the housing 5 to rise and fall, two movable platforms 6 slidably mounted opposite each other at the bottom of the housing 5, a rotating shaft 7 rotatably mounted on one side of each of the two movable platforms 6, a pneumatic gripper 8 mounted on the other side of the rotating shaft 7, a driving component 9 mounted on one of the movable platforms 6 for driving the rotating shaft 7 to rotate; and a power unit 10 mounted on the housing 5 for driving the two movable platforms 6 to move closer or further apart.

[0034] The calendering rolls are placed on the conveyor belt 21, which is driven by the conveyor 2 to move the calendering rolls.

[0035] Multiple sets of rubber fixing plates 22 installed on the conveyor belt 21 play a positioning role for the calendering roller, preventing it from rolling or shifting randomly during the conveying process, and ensuring that the calendering roller can accurately reach the clamping position.

[0036] Once the calender roll reaches the designated position, the lifting mechanism 4 begins operation, pushing the housing 5 downwards to a suitable height for the pneumatic grippers 8 to clamp the calender roll. Simultaneously, the power unit 10 moves the two moving platforms 6 closer together. As the moving platforms 6 approach, the pneumatic grippers 8 on the moving platforms 6 gradually clamp both ends of the calender roll, securing it in place. Then, the lifting mechanism 4 raises the housing 5, lifting the calender roll to a suitable height for processing.

[0037] When the calender roll needs to be rotated, the drive unit 9 on one side of the moving table 6 works, driving the pneumatic gripper 8 and the calender roll being held to rotate, thus meeting different processing requirements.

[0038] After the calender roll is processed, the lifting mechanism 4 drives the housing 5 to descend, so that the calender roll falls into the middle of the corresponding rubber fixing sheet 22. The power unit 10 drives the two moving tables 6 to move away from each other, the pneumatic gripper 8 releases the calender roll, the lifting mechanism 4 drives the housing 5 to rise, the conveyor 2 continues to operate, and transports the processed calender roll away, while transporting the next calender roll to be processed to the clamping position, so as to realize continuous automatic processing.

[0039] With the cooperation of conveyor 2, moving table 6, pneumatic gripper 8, drive unit 9 and power unit 10, the calendering roll can be automatically transported to the clamping position and clamped. After processing, it is automatically released and transported away. This realizes continuous automatic clamping of multiple calendering rolls, which greatly improves processing efficiency, reduces manual intervention and lowers labor costs.

[0040] The rubber fixing plate 22 on the conveyor belt 21 can accurately position the calendering roll, ensuring that the calendering roll remains stable during the conveying process, which facilitates accurate clamping by the clamping device and improves processing accuracy.

[0041] The power unit 10 can drive the two moving tables 6 to move closer or further apart, adapting to calendering rolls of different sizes. The pneumatic grippers 8 have a flexible and reliable clamping method, which can meet different processing needs.

[0042] The drive unit 9 can drive the rotating shaft 7 and the calendering roll to rotate, which facilitates all-round processing of the calendering roll and improves the flexibility and quality of processing.

[0043] like Figure 5As shown, specifically, the conveyor 2 in this embodiment includes columns 23 arranged opposite to each other at both ends of the workbench 1. A mounting frame 24 is provided above the columns 23. Both ends of the mounting frame 24 are rotatably equipped with drive wheels 25. The conveyor belt 21 is driven by the two drive wheels 25. A drive motor and a reducer are provided on the mounting frame 24. The output shaft of the drive motor is connected to the input shaft of the reducer. The output shaft of the reducer is connected to one of the drive wheels 25. A plurality of auxiliary rollers 26 located inside the conveyor belt 21 are rotatably arranged between the mounting frames 24. The plurality of auxiliary rollers 26 are arranged symmetrically up and down. The surface of the auxiliary rollers 26 is in contact with the inner side of the conveyor belt 21.

[0044] After the drive motor starts, its output shaft begins to rotate, transmitting power to the reducer. The reducer reduces the speed and increases the torque of the high-speed rotation output by the drive motor, and then transmits the processed power to one side drive wheel 25, driving the drive wheel 25 to rotate. Since the conveyor belt 21 is driven by two drive wheels 25, under the action of friction, the rotating drive wheel 25 drives the conveyor belt 21 to rotate, and at the same time the other drive wheel 25 also rotates, thereby realizing the cyclic movement of the conveyor belt 21 and conveying the calendering rollers placed on it.

[0045] During the operation of the conveyor belt 21, the auxiliary roller 26 rotates along with the movement of the conveyor belt 21. The main function of the auxiliary roller 26 is to provide support and guidance for the conveyor belt 21, prevent the conveyor belt 21 from sagging or running off-center during operation, ensure that the conveyor belt 21 can smoothly and accurately transport the calendering roller, and at the same time reduce the burden on the drive pulley 25, extending the service life of the conveyor belt 21 and related components.

[0046] like Figure 1 and Figure 5 As shown, in this embodiment, the number of rubber fixing pieces 22 in a set is two. The two rubber fixing pieces 22 on the same side are arranged opposite each other, and the two rubber fixing pieces 22 on the same side are arc-shaped to accommodate the calendering roll.

[0047] When the calender roll is placed on the conveyor belt 21, the surface of the calender roll will fit into the arc-shaped space formed by the two rubber fixing plates 22 on the same side. The rubber fixing plates 22 have a certain elasticity and friction, which can tightly fit the surface of the calender roll. When the conveyor belt 21 moves, the rubber fixing plates 22 will restrict the lateral and longitudinal movement of the calender roll in the plane of the conveyor belt 21, so that the calender roll moves forward stably with the conveyor belt 21, ensuring that the calender roll can accurately reach the clamping position set by the clamping fixture.

[0048] The arc-shaped structure formed by the two rubber fixing plates 22 on the same side can accurately position the calender roll, ensuring that the calender roll is in a relatively fixed position each time it is fed, which facilitates the subsequent clamping device to clamp it accurately and quickly, thereby improving the automation level and processing accuracy of the entire processing flow.

[0049] The rubber fixing plate has good elasticity and can buffer and protect the calender roll during the placement and conveying process, preventing the calender roll from directly colliding with the conveyor belt 21 or other hard parts, reducing damage to the surface of the calender roll and ensuring the quality of the calender roll.

[0050] like Figure 2 and Figure 3 As shown, the lifting mechanism 4 includes a crossbeam 41 mounted on two support columns 3. The crossbeam 41 has multiple through holes and an electric push rod 42 mounted on it. The piston rod of the electric push rod 42 passes through the through holes and is connected to the housing 5. The lifting mechanism 4 also includes two guide columns 43 mounted opposite each other on the housing 5. The top of the guide column 43 passes through the corresponding through holes and extends above the crossbeam 41.

[0051] When the clamping device needs to be raised or lowered, the electric push rod 42 is activated. Since the piston rod passes through the through hole on the crossbeam 41 and is connected to the housing 5, the extension and retraction of the piston rod directly drives the housing 5 to rise or fall. For example, when the piston rod extends downward, the housing 5 falls accordingly; when the piston rod retracts upward, the housing 5 rises accordingly.

[0052] During the lifting and lowering of the housing 5, the guide column 43 moves synchronously. The top of the guide column 43 passes through the corresponding through hole on the crossbeam 41 and extends above the crossbeam 41. The guide column 43 slides up and down in the through hole, which guides and stabilizes the lifting and lowering movement of the housing 5, preventing the housing 5 from shaking or deviating during the lifting and lowering process, and ensuring that the housing 5 can be lifted and lowered to the designated position smoothly and accurately.

[0053] like Figure 2 and Figure 3 As shown, in one embodiment, the movable stage 6 includes a movable plate 61 slidably arranged on the bottom of the housing 5. Two transmission rods 62 are arranged opposite each other on the bottom of the movable plate 61. A mounting seat 63 is provided on the other side of the transmission rods 62. The movable plate 61 and the transmission rods 62 are both L-shaped. The rotating shaft 7 is rotatably arranged on the mounting seat 63. Two pneumatic grippers 8 are located between the two mounting seats 63.

[0054] Driven by the power unit 10, the two movable plates 61 slide relative to each other at the bottom of the housing 5. Since both the movable plates 61 and the transmission rod 62 are L-shaped, the sliding of the movable plates 61 can drive the transmission rod 62 to move synchronously.

[0055] When the transmission rod 62 moves, the mounting base 63 connected to its other end also moves. The rotating shaft 7 is rotatably mounted on the mounting base 63, and the two pneumatic grippers 8 are located between the two mounting bases 63. Therefore, the movement of the mounting base 63 will cause the pneumatic grippers 8 to move closer or further away from each other.

[0056] When the two moving plates 61 approach each other, the distance between the two pneumatic grippers 8 gradually decreases, eventually clamping the calendering roll; when the two moving plates 61 move away from each other, the distance between the two pneumatic grippers 8 gradually increases, releasing the calendering roll.

[0057] The rotating shaft 7 rotates on the mounting base 63, and the pneumatic gripper 8 is mounted on the rotating shaft 7. When the driving component 9 drives one side of the rotating shaft 7 to rotate, the rotating shaft 7 drives the pneumatic gripper 8 and the calendering roll it holds to rotate together, so as to meet the requirements of different processing angles.

[0058] like Figure 4 As shown, in one embodiment, the drive unit 9 includes a second reducer mounted on a side mounting base 63, a second drive motor mounted on the second reducer, the output shaft of the second drive motor being connected to the input shaft of the second reducer, and the output shaft of the second reducer being connected to the end of a side rotating shaft 7 away from the pneumatic gripper 8.

[0059] When the clamped calender roll needs to be rotated, drive motor 2 starts, and the output shaft of drive motor 2 begins to rotate, transmitting power to reducer 2. Reducer 2 reduces the speed and increases the torque of the high-speed rotation output of drive motor 2, converting the high-speed, low-torque power into low-speed, high-torque power suitable for the rotation of shaft 7. The output shaft of reducer 2 is connected to the end of one side of shaft 7 away from the pneumatic gripper 8. Driven by reducer 2, the side shaft 7 begins to rotate. Since the calender roll is clamped by two pneumatic grippers 8, when this side shaft 7 rotates, it will drive the pneumatic grippers 8 and the clamped calender roll to rotate together, thereby realizing the rotational processing of the calender roll.

[0060] like Figure 4 As shown, in one embodiment, the power unit 10 includes two lead screws 101 coaxially disposed inside the housing 5, with opposite thread directions. A movable cylinder 102 is threaded onto each lead screw 101, and a fixed plate 103 is disposed at the bottom of the movable cylinder 102. A sliding hole is provided at the bottom of the housing 5, and the bottom end of the fixed plate 103 passes through the sliding hole and connects to the corresponding movable plate 61. The power unit 10 also includes a drive motor 3 and a reducer 3 disposed on the housing 5. The output shaft of the reducer 3 is connected to one end of the two coaxially disposed lead screws 101, and the other ends of the two coaxially disposed lead screws 101 are rotatably connected to the inner wall of the housing 5. A threaded hole adapted to the thread on the lead screw 101 is provided on the inner side of the movable cylinder 102.

[0061] After the drive motor three starts, its output shaft begins to rotate, transmitting power to the reducer three. The reducer three reduces the speed and increases the torque of the high-speed rotation output by the drive motor three, and then transmits the processed power to one end of the two coaxial lead screws 101, driving the lead screws 101 to rotate.

[0062] Since the threads of the two lead screws 101 are in opposite directions, and the inner side of the moving cylinder 102 is provided with a threaded hole that matches the thread on the lead screw 101, when the lead screw 101 rotates, the two moving cylinders 102 will move in opposite directions along the lead screw 101. For example, if one moving cylinder 102 moves toward one end of the lead screw 101, the other moving cylinder 102 will move toward the other end of the lead screw 101.

[0063] A fixed plate 103 is provided at the bottom of the moving cylinder 102. The bottom end of the fixed plate 103 passes through the sliding hole at the bottom of the housing 5 and is connected to the corresponding moving plate 61. Therefore, the movement of the moving cylinder 102 will drive the moving plate 61 to slide at the bottom of the housing 5 through the fixed plate 103, thereby realizing the two moving plates 61 moving closer or further apart, and finally controlling the pneumatic gripper 8 to clamp or release the calendering roll.

[0064] The two lead screws 101 are coaxially arranged with opposite thread directions, enabling the two moving cylinders 102 to move synchronously and in opposite directions, thereby driving the two moving plates 61 to move closer or further away synchronously. This ensures that the two pneumatic grippers 8 can move simultaneously and at equal distances, achieving stable and precise clamping of the calender roll and avoiding calender roll misalignment or damage caused by asynchronous clamping.

[0065] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0066] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A clamping fixture for processing calender rolls, characterized in that, include: A workbench (1) is provided with a conveyor (2), the conveyor (2) having a conveyor belt (21) for conveying calender rolls, and multiple sets of rubber fixing plates (22) for positioning calender rolls are provided on the conveyor belt (21). Two support columns (3) are arranged opposite each other on the workbench (1). A lifting mechanism (4) is provided on the support columns (3). A housing (5) is provided at the bottom of the lifting mechanism (4). The lifting mechanism (4) is used to drive the housing (5) to rise and fall. Two moving platforms (6) are slidably arranged opposite each other at the bottom of the housing (5). A rotating shaft (7) is rotatably provided on one side of each of the two moving platforms (6). A pneumatic gripper (8) is provided on the other side of the rotating shaft (7). A driving component (9) is provided on one side of the moving platform (6). The driving component (9) is used to drive the rotating shaft (7) to rotate. A power unit (10) is provided on the housing (5), which is used to drive the two mobile stations (6) to move closer to or further away from each other.

2. The clamping fixture for processing calender rolls as described in claim 1, characterized in that: The conveyor (2) includes columns (23) arranged opposite to each other at both ends of the workbench (1). A mounting frame (24) is provided above the columns (23). Both ends of the mounting frame (24) are rotatably provided with drive wheels (25). The conveyor belt (21) is driven on the two drive wheels (25). A drive motor and a reducer are provided on the mounting frame (24). The output shaft of the drive motor is connected to the input shaft of the reducer. The output shaft of the reducer is connected to one drive wheel (25). Multiple auxiliary rollers (26) located inside the conveyor belt (21) are rotatably arranged between the mounting frames (24). The multiple auxiliary rollers (26) are arranged symmetrically up and down, and the surface of the auxiliary rollers (26) is in contact with the inner side of the conveyor belt (21).

3. The clamping fixture for processing calender rolls as described in claim 1, characterized in that: The number of rubber fixing pieces (22) in a set is two. The two rubber fixing pieces (22) on the same side are arranged opposite each other, and the two rubber fixing pieces (22) on the same side are arc-shaped to accommodate the calendering roll.

4. The clamping fixture for processing calender rolls as described in claim 1, characterized in that: The lifting mechanism (4) includes a crossbeam (41) set on two support columns (3), the crossbeam (41) has multiple through holes, and an electric push rod (42) is set on the crossbeam (41). The piston rod of the electric push rod (42) passes through the through holes and is connected to the housing (5). The lifting mechanism (4) also includes two guide columns (43) arranged opposite to each other on the housing (5), the top of the guide columns (43) passing through the corresponding through holes and extending above the crossbeam (41).

5. The clamping fixture for processing calender rolls as described in claim 1, characterized in that: The movable platform (6) includes a movable plate (61) slidably arranged at the bottom of the housing (5). Two transmission rods (62) are arranged opposite each other at the bottom of the movable plate (61). A mounting seat (63) is provided on the other side of the transmission rods (62). Both the movable plate (61) and the transmission rods (62) are L-shaped. The rotating shaft (7) is rotatably mounted on the mounting base (63), and the two pneumatic grippers (8) are located between the two mounting bases (63).

6. The clamping fixture for processing calender rolls as described in claim 5, characterized in that: The drive unit (9) includes a second reducer mounted on a side mounting base (63), a second drive motor mounted on the second reducer, the output shaft of the second drive motor being connected to the input shaft of the second reducer, and the output shaft of the second reducer being connected to the end of a side rotating shaft (7) away from the pneumatic gripper (8).

7. The clamping fixture for processing calender rolls as described in claim 6, characterized in that: The power unit (10) includes two lead screws (101) coaxially arranged inside the housing (5). The two lead screws (101) have opposite thread directions. A movable cylinder (102) is threaded onto the lead screw (101). A fixed plate (103) is provided at the bottom of the movable cylinder (102). A sliding hole is provided at the bottom of the housing (5). The bottom end of the fixed plate (103) passes through the sliding hole and is connected to the corresponding movable plate (61). The power unit (10) also includes a drive motor three and a reducer three mounted on the housing (5). The output shaft of the reducer three is connected to one end of two coaxial lead screws (101), and the other end of the two coaxial lead screws (101) is rotatably connected to the inner wall of the housing (5).

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