Cylinder clamping mechanism

Abstract

This utility model belongs to the field of clamping technology and discloses a cylindrical clamping mechanism, including a mounting back plate, a first clamping unit, and a second clamping unit. The first clamping unit includes a first drive module, a gear disk, and a fixing plate. The gear disk is rotatably clamped onto the fixing plate. The first drive module is used to drive the gear disk to rotate. The second clamping unit includes a connecting plate, a second drive module, a transmission module, a first gripper, and a second gripper. Both the first and second grippers are slidably mounted on the transmission module. The second drive module is used to provide the transmission module with a driving force to drive the first and second grippers to slide towards or away from each other. The first clamping unit adjusts the space between the first and second arc-shaped slots by rotating the gear disk, and the second clamping unit adjusts the space between the first and second grippers by sliding them towards or away from each other, thereby achieving clamping of components of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a cylindrical clamping mechanism. Background Technology

[0002] In the field of machinery, there are many parts with cylindrical shapes, whether in assembly or machining. In order to ensure stability during assembly and machining, fixtures are usually used to fix and position them, thereby preventing the cylindrical parts from shifting during machining or assembly.

[0003] However, since different types of cylindrical parts have different specifications and diameters, different sizes of fixtures are needed for fixing and positioning when assembling and processing cylindrical parts of different diameters. As a result, different fixtures need to be changed when processing or assembling cylindrical parts of different diameters, which wastes a lot of time when disassembling and assembling fixtures and reduces the efficiency of the operation.

[0004] Therefore, there is an urgent need for a cylindrical clamping mechanism to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a cylindrical clamping mechanism that is adaptable to different diameters and has high operating efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A cylindrical clamping mechanism is provided, the cylindrical clamping mechanism comprising:

[0008] Install back panel;

[0009] The first clamping unit includes a first drive module, a gear plate, and a fixing plate. The fixing plate has a first arc-shaped slot, and the gear plate has a second arc-shaped slot concentric with the first arc-shaped slot. The gear plate is rotatably clamped onto the fixing plate. The first drive module is connected to the mounting back plate and is used to drive the gear plate to rotate.

[0010] The second clamping unit includes a connecting plate, a second drive module, a transmission module, a first gripper, and a second gripper. The first gripper has a first arc-shaped groove, and the second gripper has a second arc-shaped groove. Both the first gripper and the second gripper are slidably mounted on the transmission module. The transmission module is connected to the side of the fixing plate away from the gear plate. The second drive module is connected to the connecting plate and is used to provide the transmission module with a driving force to drive the first gripper and the second gripper to slide towards or away from each other. The connecting plate is connected to the mounting back plate.

[0011] Optionally, the cylindrical clamping mechanism further includes a clamping unit, which includes a first telescopic module and a clamping plate. The first telescopic module and the first drive module are located on the same side of the mounting back plate and are connected to the mounting back plate. The clamping plate is located on the other side of the mounting back plate and is connected to the first telescopic module. The first telescopic module is used to drive the clamping plate to move closer to or away from the mounting back plate.

[0012] Optionally, the first telescopic module includes a first telescopic power component, a guide post, and a guide sleeve. The first telescopic power component is connected to the mounting back plate. The output end of the first telescopic power component passes through the mounting back plate and is connected to the abutment plate. Guide sleeves connected to the mounting back plate are provided on both sides of the first telescopic power component. The guide post is slidably inserted into the guide sleeve and connected to the abutment plate.

[0013] Optionally, the first drive module includes a first rotary power component, a first linkage component, a second linkage component, a first gear, and a second gear. The first gear and the second gear are spaced apart and mesh with the side of the gear disk opposite to the second arc-shaped slot. The end of the first gear opposite to the gear disk is connected to the first linkage component, which is connected to the mounting back plate. The end of the second gear opposite to the gear disk is connected to the second linkage component, which is connected to the mounting back plate. The first rotary power component is connected to the first linkage component and is used to provide the first linkage component with a driving force to drive the first gear to rotate.

[0014] Optionally, the second drive module includes a second telescopic power component, a second rotary power component, and a linkage plate. The second rotary power component is connected to the linkage plate, the linkage plate is connected to the second telescopic power component, and the second telescopic power component is connected to the connecting plate. It is used to drive the linkage plate to drive the second rotary power component to dock or separate from the transmission module.

[0015] Optionally, the transmission module includes a protective housing, a transmission screw, a slide rail, a first slider, and a second slider. The slide rail is disposed within the protective housing. The first slider is slidably disposed on the slide rail and connected to the first gripper. The second slider is slidably disposed on the slide rail and connected to the second gripper. The transmission screw is rotatably disposed within the protective housing and is used to dock with the second rotating power component. The transmission screw has external threads with opposite directions of rotation. The first slider and the second slider are both sleeved on the transmission screw and have threaded holes adapted to the corresponding directions of rotation.

[0016] Optionally, the second drive module further includes a drive head, and the transmission module further includes a coupling joint. The drive head is connected to the output end of the second rotating power component and has a mating protrusion. The coupling joint is connected to the end of the transmission screw that extends out of the protective housing and has a mating groove that engages with the mating protrusion.

[0017] Optionally, the second drive module further includes a positioning block and a limiting block. The positioning block is connected to the linkage plate and has a limiting groove. The limiting block is connected to the connecting plate and has a limiting boss that inserts into the limiting groove.

[0018] Optionally, the second clamping unit further includes clamping pads, and the clamping pads are provided on both the first arc-shaped groove and the second arc-shaped groove.

[0019] Optionally, the clamping pads have anti-slip textures on the side opposite to each other.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a cylindrical clamping mechanism. On one hand, the first clamping unit drives the gear plate to rotate relative to the fixed plate through the first drive module, thereby adjusting the size of the space between the first arc-shaped slot and the second arc-shaped slot. The second clamping unit provides the transmission module with the driving force to drive the first and second clamping jaws to slide towards or away from each other through the second drive module, thereby adjusting the size of the space between the first and second clamping jaws. This enables clamping of parts with different diameters, saving the time of clamp replacement and improving work efficiency. On the other hand, the first and second clamping units fix different parts of the cylindrical part, thereby ensuring the stability of the fixation. Attached Figure Description

[0022] Figure 1 This is an assembly drawing of the cylindrical clamping mechanism provided by this utility model;

[0023] Figure 2 This is a structural assembly drawing of the first clamping unit in the cylindrical clamping mechanism provided by this utility model;

[0024] Figure 3 This is a structural assembly drawing of the second clamping unit in the cylindrical clamping mechanism provided by this utility model;

[0025] Figure 4 This is an assembly drawing of the clamping unit and the mounting back plate in the cylindrical clamping mechanism provided by this utility model.

[0026] In the picture:

[0027] 1. Install the back panel;

[0028] 2. First clamping unit; 21. First drive module; 211. First rotating power component; 212. First linkage component; 213. Second linkage component; 214. First gear; 22. Gear plate; 23. Fixing plate;

[0029] 3. Second clamping unit; 31. Connecting plate; 32. Second drive module; 321. Second telescopic power component; 322. Second rotational power component; 323. Linkage plate; 324. Drive head; 325. Positioning block; 326. Limiting block; 33. Transmission module; 331. Protective housing; 332. Transmission screw; 333. Slide rail; 334. First slider; 335. Second slider; 336. Connecting joint; 34. First gripper; 35. Second gripper; 36. Clamping pad;

[0030] 4. Install the base plate;

[0031] 5. Clamping unit; 51. First telescopic module; 511. First telescopic power component; 512. Guide post; 513. Guide sleeve; 52. Abutment plate. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] In the field of machinery, there are many parts with cylindrical shapes, whether in assembly or machining. In order to ensure stability during assembly and machining, fixtures are usually used to fix and position them, thereby preventing the cylindrical parts from shifting during machining or assembly.

[0037] However, since different types of cylindrical parts have different specifications and diameters, different sizes of fixtures are needed for fixing and positioning when assembling and processing cylindrical parts of different diameters. As a result, different fixtures need to be changed when processing or assembling cylindrical parts of different diameters, which wastes a lot of time when disassembling and assembling fixtures and reduces the efficiency of the operation.

[0038] Therefore, in order to adapt to cylindrical parts of different diameters, avoid wasting time when disassembling and assembling clamps, and improve work efficiency, this embodiment provides a cylindrical clamping mechanism.

[0039] like Figures 1 to 4As shown, the cylindrical clamping mechanism includes a mounting back plate 1, a first clamping unit 2, and a second clamping unit 3. The first clamping unit 2 includes a first drive module 21, a gear disk 22, and a fixing plate 23. The fixing plate 23 has a first arc-shaped slot, and the gear disk 22 has a second arc-shaped slot concentric with the first arc-shaped slot. The gear disk 22 is rotatably clamped onto the fixing plate 23. The first drive module 21 is connected to the mounting back plate 1 and is used to drive the gear disk 22 to rotate. The second clamping unit 3 includes a connecting plate 31, a second drive module 32, and a transmission... The transmission module 33 includes a first gripper 34 and a second gripper 35. The first gripper 34 has a first arc-shaped groove, and the second gripper 35 has a second arc-shaped groove. Both the first gripper 34 and the second gripper 35 are slidably mounted on the transmission module 33. The transmission module 33 is connected to the fixed plate 23 on the side opposite to the gear disk 22. The second drive module 32 is connected to the connecting plate 31 and is used to provide the transmission module 33 with the driving force to drive the first gripper 34 and the second gripper 35 to slide towards or away from each other. The connecting plate 31 is connected to the mounting back plate 1.

[0040] On the one hand, the first clamping unit 2 drives the gear plate 22 to rotate relative to the fixed plate 23 through the first drive module 21, thereby adjusting the size of the space between the first arc-shaped slot and the second arc-shaped slot. The second clamping unit 3 provides the transmission module 33 with the driving force through the second drive module 32 to drive the first gripper 34 and the second gripper 35 to slide towards or away from each other, thereby adjusting the size of the space between the first gripper 34 and the second gripper 35, thereby achieving clamping of parts with different diameters, saving the time of fixture replacement and improving work efficiency. On the other hand, the first clamping unit 2 and the second clamping unit 3 fix different parts of the cylindrical part, thereby ensuring the stability of the fixation.

[0041] In this embodiment, the cylindrical clamping mechanism further includes a mounting base plate 4, and a mounting back plate 1 is vertically connected to the mounting base plate 4 so that the cylindrical clamping mechanism can be fixed by the mounting base plate 4.

[0042] Optionally, the cylindrical clamping mechanism further includes a clamping unit 5, which includes a first telescopic module 51 and an abutment plate 52. The first telescopic module 51 and the first drive module 21 are located on the same side of the mounting back plate 1 and are connected to the mounting back plate 1. The abutment plate 52 is located on the other side of the mounting back plate 1 and is connected to the first telescopic module 51. The first telescopic module 51 is used to drive the abutment plate 52 to move closer to or away from the mounting back plate 1. By setting the clamping unit 5, which consists of the first telescopic module 51 and the abutment plate 52, when fixing the cylindrical component, the abutment plate 52 can be controlled by the first telescopic module 51 to abut against the end of the cylindrical component, thereby enhancing the fixing effect on the cylindrical component.

[0043] Furthermore, the first telescopic module 51 includes a first telescopic power component 511, a guide post 512, and a guide sleeve 513. The first telescopic power component 511 is connected to the mounting back plate 1, and its output end passes through the mounting back plate 1 and connects to the abutment plate 52. Guide sleeves 513 connected to the mounting back plate 1 are provided on both sides of the first telescopic power component 511. The guide post 512 is slidably inserted into the guide sleeve 513 and connected to the abutment plate 52. By setting the guide post 512 and guide sleeve 513, the first telescopic power component 511 can guide and limit the movement trajectory of the abutment plate 52 when controlling its movement, preventing deviations in the sliding trajectory due to lateral swaying. Furthermore, the cooperation of the guide post 512 and guide sleeve 513 avoids the influence of various lateral forces during movement, enhancing the stability of the equipment during movement. In this embodiment, the first telescopic power component 511 is a telescopic cylinder.

[0044] Optionally, the first drive module 21 includes a first rotating power component 211, a first linkage component 212, a second linkage component 213, a first gear 214, and a second gear. The first gear 214 and the second gear are spaced apart and mesh with the side of the gear disk 22 opposite to the second arc-shaped slot. The end of the first gear 214 opposite to the gear disk 22 is connected to the first linkage component 212, which is connected to the mounting back plate 1. The end of the second gear opposite to the gear disk 22 is connected to the second linkage component 213, which is also connected to the mounting back plate 1. The first rotating power component 211 is connected to the first linkage component 212 and provides the first linkage component 212 with the driving force to drive the first gear 214 to rotate. By spaced apart the first gear 214 and the second gear meshing with the gear disk 22, the first gear 214 and the second gear support the gear disk 22. In this embodiment, the first rotating power component 211 is composed of a motor and a dual-shaft reduction mechanism, and the first linkage component 212 and the second linkage component 213 are both single-shaft reduction machines. The first linkage component 212 is connected to one of the output shafts of the dual-shaft reduction machine through a coupling.

[0045] Optionally, the second drive module 32 includes a second telescopic power component 321, a second rotary power component 322, and a linkage plate 323. The second rotary power component 322 is connected to the linkage plate 323, the linkage plate 323 is connected to the second telescopic power component 321, and the second telescopic power component 321 is connected to the connecting plate 31. The telescopic power component 321 controls the docking or disengagement of the second rotary power component 322 with the transmission module 33, ensuring that the second rotary power component 322 only docks with the transmission module 33 when the first gripper 34 and the second gripper 35 need to slide, and disengages from the transmission module 33 when the first gripper 34 and the second gripper 35 do not need to slide. This prevents vibration of the cylindrical component during processing or assembly, which could push the first gripper 34 and the second gripper 35 to slide and cause damage to the second rotary power component 322. In this embodiment, the second rotating power component 322 is a motor, and the second telescopic power component 321 is a telescopic cylinder.

[0046] Optionally, the transmission module 33 includes a protective housing 331, a transmission screw 332, a slide rail 333, a first slider 334, and a second slider 335. The slide rail 333 is disposed inside the protective housing 331. The first slider 334 is slidably disposed on the slide rail 333 and connected to the first gripper 34. The second slider 335 is slidably disposed on the slide rail 333 and connected to the second gripper 35. The transmission screw 332 is rotatably disposed inside the protective housing 331 and is used to dock with the second rotating power component 322. The transmission screw 332 is provided with external threads with opposite rotation directions. The first slider 334 and the second slider 335 are both sleeved on the transmission screw 332 and have threaded holes adapted to the corresponding rotation directions.

[0047] By utilizing the lead screw 332 to move the first slider 334 and the second slider 335 closer together or further apart, the rotary motion of the lead screw 332 can be converted into linear motion of the first slider 334 and the second slider 335, which are connected to the lead screw 332 by threads. This results in high transmission efficiency. Furthermore, due to the high positional accuracy and repeatability of the lead screw drive, accurate position and motion control of the first slider 334 and the second slider 335 during sliding is achieved. In addition, because the first slider 334 and the second slider 335 have a certain weight, the lead screw drive, with its strong load-bearing capacity, can withstand large axial and radial loads, thus ensuring the structural reliability and safety when the first slider 334 and the second slider 335 move. Moreover, when the second rotating power component 322 suddenly loses power, the strong self-locking property of the lead screw drive ensures that the first slider 334 and the second slider 335 remain stable even in the event of a power outage or loss of driving force, preventing accidental movement.

[0048] Furthermore, the second drive module 32 also includes a drive head 324, and the transmission module 33 also includes a coupling joint 336. The drive head 324 is connected to the output end of the second rotary power component 322 and has a mating protrusion. The coupling joint 336 is connected to the end of the transmission screw 332 extending out of the protective housing 331 and has a mating groove for inserting into the mating protrusion. By providing a mating protrusion on the drive head 324 and a mating groove on the coupling joint 336, when the second rotary power component 322 mates with the transmission screw 332, the mating protrusion is inserted into the mating groove, thereby transmitting the torque of the second rotary power component 322 to the transmission screw 332 to drive the transmission screw 332 to rotate.

[0049] Optionally, the second drive module 32 further includes a positioning block 325 and a limiting block 326. The positioning block 325 is connected to the linkage plate 323 and has a limiting groove. The limiting block 326 is connected to the connecting plate 31 and has a limiting boss that inserts into the limiting groove. By providing a positioning block 325 with a limiting groove on the linkage plate 323 and a limiting block 326 with a limiting boss on the connecting plate 31, the positioning accuracy after docking is ensured when the second telescopic power member 321 drives the linkage plate 323 to drive the second rotary power member 322 to dock with the transmission screw 332. If the limiting boss is not inserted into the limiting groove, it indicates that there is a deviation in docking, and the machine needs to be stopped for inspection.

[0050] Optionally, the second clamping unit 3 further includes clamping pads 36, with clamping pads 36 provided on both the first and second arc-shaped grooves. By providing clamping pads 36 on the first and second arc-shaped grooves, damage to the cylindrical component is avoided. In this embodiment, two clamping pads 36 are provided on both the first and second arc-shaped grooves.

[0051] Furthermore, the clamping pads 36 have anti-slip textures on the side opposite to each other. By providing anti-slip textures on the side opposite to each other of the clamping pads 36, sufficient friction is ensured when the first jaw 34 and the second jaw 35 clamp the cylindrical component, preventing the cylindrical component from slipping and thus affecting assembly or processing operations.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cylindrical clamping mechanism, characterized in that, The cylindrical clamping mechanism includes: Install back panel (1); The first clamping unit (2) includes a first drive module (21), a gear plate (22) and a fixing plate (23). The fixing plate (23) has a first arc-shaped slot, and the gear plate (22) has a second arc-shaped slot concentric with the first arc-shaped slot. The gear plate (22) is rotatably clamped onto the fixing plate (23). The first drive module (21) is connected to the mounting back plate (1) and is used to drive the gear plate (22) to rotate. The second clamping unit (3) includes a connecting plate (31), a second drive module (32), a transmission module (33), a first gripper (34), and a second gripper (35). The first gripper (34) has a first arc-shaped groove, and the second gripper (35) has a second arc-shaped groove. The first gripper (34) and the second gripper (35) are slidably disposed on the transmission module (33). The transmission module (33) is connected to the side of the fixing plate (23) away from the gear plate (22). The second drive module (32) is connected to the connecting plate (31) and is used to provide the transmission module (33) with a driving force to drive the first gripper (34) and the second gripper (35) to slide towards or away from each other. The connecting plate (31) is connected to the mounting back plate (1).

2. The cylindrical clamping mechanism according to claim 1, characterized in that, The cylindrical clamping mechanism further includes a clamping unit (5), which includes a first telescopic module (51) and a clamping plate (52). The first telescopic module (51) and the first drive module (21) are located on the same side of the mounting back plate (1) and are connected to the mounting back plate (1). The clamping plate (52) is located on the other side of the mounting back plate (1) and is connected to the first telescopic module (51). The first telescopic module (51) is used to drive the clamping plate (52) to move closer to or away from the mounting back plate (1).

3. The cylindrical clamping mechanism according to claim 2, characterized in that, The first telescopic module (51) includes a first telescopic power component (511), a guide post (512), and a guide sleeve (513). The first telescopic power component (511) is connected to the mounting back plate (1). The output end of the first telescopic power component (511) passes through the mounting back plate (1) and is connected to the abutment plate (52). The guide sleeve (513) is provided on both sides of the first telescopic power component (511) and is connected to the mounting back plate (1). The guide post (512) is slidably inserted into the guide sleeve (513) and connected to the abutment plate (52).

4. The cylindrical clamping mechanism according to claim 1, characterized in that, The first drive module (21) includes a first rotary power component (211), a first linkage component (212), a second linkage component (213), a first gear (214), and a second gear. The first gear (214) and the second gear are spaced apart and mesh with the side of the gear disk (22) away from the second arc-shaped slot. The end of the first gear (214) away from the gear disk (22) is connected to the first linkage component (212), and the first linkage component (212) is connected to the mounting back plate (1). The end of the second gear away from the gear disk (22) is connected to the second linkage component (213), and the second linkage component (213) is connected to the mounting back plate (1). The first rotary power component (211) is connected to the first linkage component (212) and is used to provide the first linkage component (212) with a driving force to drive the first gear (214) to rotate.

5. The cylindrical clamping mechanism according to claim 1, characterized in that, The second drive module (32) includes a second telescopic power component (321), a second rotary power component (322), and a linkage plate (323). The second rotary power component (322) is connected to the linkage plate (323), the linkage plate (323) is connected to the second telescopic power component (321), and the second telescopic power component (321) is connected to the connecting plate (31). It is used to drive the linkage plate (323) to drive the second rotary power component (322) to dock or separate from the transmission module (33).

6. The cylindrical clamping mechanism according to claim 5, characterized in that, The transmission module (33) includes a protective housing (331), a transmission screw (332), a slide rail (333), a first slider (334), and a second slider (335). The slide rail (333) is located inside the protective housing (331). The first slider (334) is slidably located on the slide rail (333) and connected to the first gripper (34). The second slider (335) is slidably located on the slide rail (333) and connected to the second gripper (35). The transmission screw (332) is rotatably located inside the protective housing (331) and is used to dock with the second rotating power component (322). The transmission screw (332) is provided with external threads with opposite rotation directions. The first slider (334) and the second slider (335) are both sleeved on the transmission screw (332) and have threaded holes adapted to the corresponding rotation directions.

7. The cylindrical clamping mechanism according to claim 6, characterized in that, The second drive module (32) further includes a drive head (324), and the transmission module (33) further includes a connector (336). The drive head (324) is connected to the output end of the second rotary power component (322) and has a mating protrusion. The connector (336) is connected to the end of the transmission screw (332) that extends out of the protective housing (331) and has a mating groove that engages with the mating protrusion.

8. The cylindrical clamping mechanism according to claim 5, characterized in that, The second drive module (32) further includes a positioning block (325) and a limiting block (326). The positioning block (325) is connected to the linkage plate (323) and has a limiting groove. The limiting block (326) is connected to the connecting plate (31) and has a limiting boss that is inserted into the limiting groove.

9. The cylindrical clamping mechanism according to claim 1, characterized in that, The second clamping unit (3) further includes a clamping pad (36), and the clamping pad (36) is provided on both the first arc-shaped groove and the second arc-shaped groove.

10. The cylindrical clamping mechanism according to claim 9, characterized in that, The clamping pads (36) have anti-slip textures on the side opposite to each other.

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