Auxiliary device for large crane drum processing and method for processing drum

Abstract

The present invention relates to an auxiliary device for turning a large crane drum in the field of crane processing technology, comprising a horizontal lathe, wherein a head end chuck and a tailstock center are respectively provided at two ends of the horizontal lathe, and a bed is provided with a wheel frame with supporting wheels at both ends, and the head end chuck is evenly spaced along its circumference and provided with at least three anti-slipping clamps, and the circle formed by the anti-slipping clamps is located outside the circle formed by the head end chuck claws, and in processing the drum flange, the anti-slipping clamps cooperate with the head end chuck claws to perform rigid axial limiting on the drum shaft end; in the present invention, in processing the drum flange, the anti-slipping clamps cooperate with the head end chuck claws to perform rigid axial limiting on the drum shaft end, which effectively solves the safety risk of axial movement of the drum and ensures the turning quality.

Description

Technical Field

[0001] The invention relates to the technical field of crane processing, and in particular to an auxiliary device for processing a large crane drum and a method for processing a drum. Background Art

[0002] With the continuous increase in the production capacity of the production workshop, the demand for crane lifting tonnage has gradually increased, and the number of products with a lifting weight greater than 500 tons has also increased, and the diameter of the drum has also continued to increase. According to the structural characteristics of the large-tonnage crane trolley (a single shaft at one end and a flange at the other end), it is convenient to install a ball joint coupling at the flange end to form a compact structure with the large one-line reducer. This structure not only reduces the weight of the trolley, but also reduces the height, length and other external dimensions of the trolley, which is conducive to reducing the height of the user, thereby reducing the user's investment cost, and also facilitates the maintenance of large cranes.

[0003] The drum is one of the key components of crane products. The manufacturing quality of the drum is directly related to the life of the crane and is also a direct reflection of the manufacturer's product quality level. Generally, the drum is processed by a horizontal lathe with one clamp and one top clamping method, which is safe, reliable and has high processing efficiency; however, the drum of a large crane is a single-axis flange structure. When processing the drum shaft end and the rope groove, the drum flange is clamped with the chuck claw and the drum shaft end is tightened with the tailstock top to complete the processing. However, when processing the drum flange that cooperates with the ball joint coupling, only the chuck claw is used to clamp the drum shaft end and the support wheel is used to pull up the drum. This installation method cannot fully control the freedom of the drum, the safety factor of the processing process is low, the drum flange processing precision is low, and the quality is poor.

[0004] Therefore, we have designed auxiliary equipment for large crane drum turning and a method for processing the drum. Summary of the invention

[0005] In order to overcome the deficiencies in the background technology, the present invention discloses an auxiliary device for processing a large crane drum and a method for processing a drum.

[0006] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0007] An auxiliary device for large crane drum turning, comprising a horizontal lathe, wherein a head end chuck and a tailstock center are respectively provided at both ends of the horizontal lathe, and a bed body is provided with a wheel support frame with wheels at both ends, and the head end chuck is provided with at least three anti-slip clamps evenly spaced along its circumference, and the circle formed by the anti-slip clamps is located outside the circle formed by the head end chuck claws, and in the processing drum flange, the anti-slip clamps cooperate with the head end chuck claws to rigidly limit the drum shaft end in the axial direction;

[0008] The anti-slip clamp includes a movable structure, a distance-adjusting structure and a clamping structure. The movable structure is positionally adjustable and installed on the corresponding slide groove on the head-end chuck surface to facilitate adjustment of the radial position of the clamping structure. The distance-adjusting structure is perpendicular to the head-end chuck surface and is arranged on the movable structure to facilitate adjustment of the axial position of the clamping structure.

[0009] Preferably, the anti-slip clamp comprises a T-head bolt, the head of the T-head bolt is movably fitted in the corresponding head end chuck disc surface groove, the T-head bolt screw is threaded with a first screw sleeve, and the T-head bolt and the first screw sleeve form a movable structure.

[0010] Preferably, the length of the first screw sleeve is greater than the length of the T-head bolt screw extending out of the head end chuck; the end of the first screw sleeve facing away from the T-head bolt is threadedly connected to a bidirectional screw, and the end of the bidirectional screw facing away from the first screw sleeve is threadedly connected to a second screw sleeve, and the first screw sleeve, the bidirectional screw and the second screw sleeve form a distance adjustment structure.

[0011] Preferably, a fixing bolt is screwed to one end of the second screw sleeve away from the first screw sleeve, and a clamping plate is fixed to the position of the fixing bolt screw between its head and the second screw sleeve, and the second screw sleeve, the fixing bolt and the clamping plate form a clamping structure.

[0012] Preferably, a clearance notch is provided in the middle of one end of the clamping plate away from the fixing bolt.

[0013] Preferably, a stopper wheel structure with a flexible structure is provided on the side of the roller frame away from the head end chuck, and during the processing of the drum flange, the outer end surface of the drum flange is flexibly axially limited by the stopper wheel structure.

[0014] Preferably, wheel blocking structures are provided at both ends of the wheel support frame.

[0015] Preferably, the blocking wheel structure comprises a mounting plate horizontally arranged on one side of the wheel support frame, a pad is provided on the upper plate surface of one end of the mounting plate away from the head end chuck, and the pad is rotatably connected to a blocking wheel capable of rolling on the outer end surface of the drum flange;

[0016] There is a flexible layer between the wheel shaft and the wheel body, or the pad and the mounting plate are connected via a vertically arranged disc spring group.

[0017] The method for processing a reel using an auxiliary device for processing a large crane reel includes the following steps:

[0018] Step 1: Draw a machining allowance line on the outer circle of the drum flange and a cross center line on the end face of the drum shaft, and drill a top hole at the intersection of the cross center lines;

[0019] Step 2: Align according to the machining allowance line of the outer circle of the drum flange, and clamp the drum by using the head end chuck to clamp the drum flange and the tail stock top to clamp the top hole of the drum shaft end;

[0020] Step 3: Use a horizontal lathe to process the light bands at both ends of the outer circle of the reel;

[0021] Step 4: Turn the reel, use the head end chuck to clamp the reel shaft end, install the anti-slip clamp on the head end chuck surface slide, and tighten the reel shaft end flange, and use the support wheel to roll and support the light belt near the flange end of the reel, and ensure that the light belt runout deviation is less than 0.05mm;

[0022] Step 5: Use a horizontal lathe to process the outer circle, outer end face and inner hole of the drum flange;

[0023] Step 6: Turn the reel again, clamp the reel flange with the head end chuck and clamp the reel with the tail stock top to the top hole of the reel shaft end, and ensure that the light tape runout deviation is less than 0.05mm;

[0024] Step 7: Use a horizontal lathe to process the end of the reel shaft;

[0025] Step 8: Use a horizontal lathe to process the drum rope groove in step 5 or step 7.

[0026] Preferably, the above step four is replaced by: turning the reel, clamping the reel shaft end with the head end chuck, installing the anti-slip clamp in the slide groove of the head end chuck disk, and tightening the reel shaft end retaining edge, using the support wheel to roll and support the light tape close to the reel flange end, and at the same time using the retaining wheel structure to resist the outer end face of the reel flange, and ensuring that the light tape jump deviation is less than 0.05mm.

[0027] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0028] 1. In the processing of the drum flange, the anti-slip clamp cooperates with the head end chuck claw to rigidly limit the drum shaft end in the axial direction, which effectively solves the problem of insufficient torque caused by clamping the drum only by the chuck and the supporting wheel in the prior art, and the safety risk of axial movement of the drum, thus ensuring the machining quality;

[0029] 2. The movable structure and the distance-adjusting structure share a first screw sleeve, which not only reduces the manufacturing cost but also makes the movable structure and the distance-adjusting structure more compact; the distance-adjusting structure and the clamping structure share a second screw sleeve, which not only reduces the manufacturing cost but also makes the distance-adjusting structure and the clamping structure more compact; the movable structure and the distance-adjusting structure are used to adjust and tighten as a whole, and the axial displacement of the reel will not be caused by the loosening of the chuck claws at the head end during processing, the clamping is stable and reliable, the manufacturing is simple, the cost is low, and it can adapt to reels of different diameters;

[0030] 3. In the processing of the drum flange, the flexible structure can ensure that the drum is always under the pressure of the blocking wheel to avoid axial movement of the drum. The anti-movement clamp and the head end chuck claw are used to cooperate with the drum shaft end to perform rigid axial limit. The drum is limited axially in two ways, one rigid and one flexible, to reduce the drum jump, ensure processing accuracy, and avoid over-positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the method for clamping a reel of the present invention;

[0032] Figure 2 for Figure 1 A local enlarged view of I in FIG.

[0033] Figure 3 It is a structural schematic diagram of another clamping reel method of the present invention;

[0034] Figure 4 It is another structural schematic diagram of the method for clamping the reel of the present invention;

[0035] Figure 5 for Figure 4 Part II of the figure is an enlarged view.

[0036] In the figure: 1. horizontal lathe; 2. head end chuck; 3. tailstock center; 4. supporting wheel frame; 41. supporting wheel; 5. anti-slip clamp; 51. T-head bolt; 52. first screw sleeve; 53. bidirectional screw; 54. second screw sleeve; 55. fixing bolt; 56. clamp; 561. clearance gap; 6. stopper wheel structure; 61. mounting plate; 62. pad; 63. stopper wheel; 64. disc spring assembly. DETAILED DESCRIPTION

[0037] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application and are for the convenience of describing the present invention; it should be understood that if there are terms such as "end", "side", "end portion", "lateral", "lateral", "transverse", "longitudinal", etc. indicating directions or positional relationships, they only correspond to the length and width of the corresponding components, that is, the "end portion" indicates the head and tail areas in the length direction of the corresponding component, and the "side portion" indicates the head and tail areas in the width direction of the corresponding component; this is for the convenience of describing the present invention and is not to indicate or imply that the device or element referred to must have a specific direction.

[0038] Embodiment 1, in combination with the attached Figure 1-3An auxiliary device for turning a large crane drum comprises a horizontal lathe 1, wherein a head end chuck 2 and a tailstock center 3 are respectively arranged at both ends of the horizontal lathe 1, and a bed is provided with a wheel frame 4 with wheels 41 at both ends. Specifically, the position of the wheel frame 4 corresponding to the length of the bed of the horizontal lathe 1 can be adjusted to accommodate drums of different lengths. The length or height of the wheel frame 4 can be adjusted to accommodate drums of different diameters. This wheel frame 4 is a commonly used structure of the horizontal lathe 1 and will not be described in detail here.

[0039] The head end chuck 2 is provided with at least three anti-slipping clamps 5 at evenly spaced intervals along its circumference, and the circle formed by the anti-slipping clamps 5 is located outside the circle formed by the claws of the head end chuck 2; specifically, the number of anti-slipping clamps 5 is set according to the diameter of the reel, and the larger the diameter, the more anti-slipping clamps 5 are set, so the number of anti-slipping clamps 5 is not specifically limited here; in the processing of the reel flange, the anti-slipping clamps 5 cooperate with the claws of the head end chuck 2 to perform rigid axial limiting on the reel shaft end.

[0040] It should be noted that: for a three-jaw chuck with only three radial disk grooves in the head end chuck 2 or a four-jaw chuck with only four radial disk grooves, when the number of anti-slip clamps 5 required exceeds the number of disk grooves of the original head end chuck 2, it is necessary to additionally process radial installation grooves on the disk of the head end chuck 2. The installation groove can be a limit groove or a T-slot, and the specific processing depends on the situation, as long as it can meet the requirements for installing the anti-slip clamp 5; when the number of anti-slip clamps 5 required does not exceed the number of disk grooves of the original head end chuck 2, the anti-slip clamp 5 can be directly installed on the disk groove corresponding to the clamping jaw, and there is no need to reprocess the head end chuck 2 here.

[0041] The anti-slip clamp 5 includes a movable structure, a distance-adjusting structure and a clamping structure. The movable structure is position-adjustably installed on the corresponding slide groove on the head-end chuck 2 to facilitate adjustment of the radial position of the clamping structure. The distance-adjusting structure is perpendicular to the head-end chuck 2 and is arranged on the movable structure to facilitate adjustment of the axial position of the clamping structure.

[0042] Further, the anti-channeling clamp 5 includes a T-shaped head bolt 51, a first screw sleeve 52, a bidirectional screw 53, a second screw sleeve 54, a fixing bolt 55 and a clamping plate 56;

[0043] The T-head bolt 51 and the first screw sleeve 52 form a movable structure; specifically, the head of the T-head bolt 51 is movably matched with the corresponding slide groove on the head end chuck 2, and the screw rod of the T-head bolt 51 is threadedly connected with the first screw sleeve 52.

[0044] The first screw sleeve 52, the bidirectional screw rod 53 and the second screw sleeve 54 form a distance adjustment structure; specifically: the length of the first screw sleeve 52 is greater than the length of the screw rod of the T-head bolt 51 extending out of the head end chuck 2; the end of the first screw sleeve 52 away from the T-head bolt 51 is screwed with the bidirectional screw rod 53, and the end of the bidirectional screw rod 53 away from the first screw sleeve 52 is screwed with the second screw sleeve 54.

[0045] The second screw sleeve 54 , the fixing bolt 55 and the clamping plate 56 form a clamping structure; specifically: the fixing bolt 55 is screwed to one end of the second screw sleeve 54 away from the first screw sleeve 52 , and the clamping plate 56 is fixed to the position of the fixing bolt 55 screw between its head and the second screw sleeve 54 .

[0046] By having the movable structure and the distance-adjusting structure share a first screw sleeve 52, not only can the manufacturing cost be reduced, but also the movable structure and the distance-adjusting structure can be made more compact; by having the distance-adjusting structure and the clamping structure share a second screw sleeve 54, not only can the manufacturing cost be reduced, but also the distance-adjusting structure and the clamping structure can be made more compact; the movable structure and the distance-adjusting structure are used to adjust and tighten as a whole, and the axial displacement of the reel will not be caused by the loosening of the claws of the head end chuck 2 during processing, the clamping is stable and reliable, the manufacturing is simple, the cost is low, and it can adapt to reels of different diameters.

[0047] Furthermore, in order to increase the gripping width of the clamping plate 56, a clearance notch 561 is provided in the middle of one end of the clamping plate 56 away from the fixing bolt 55. Compared with the clamping plate 56 without the clearance notch 561, both sides of the clamping end of the clamping plate 56 with the clearance notch 561 can extend to the inner side of the reel retaining edge, thereby improving the clamping stability of the clamping plate 56.

[0048] When using the auxiliary device for large crane drum turning to process the drum:

[0049] Step 1: Draw a machining allowance line on the outer circle of the drum flange and a cross center line on the end face of the drum shaft, and drill a top hole at the intersection of the cross center lines;

[0050] Step 2: Align according to the machining allowance line of the outer circle of the drum flange, and clamp the drum by using the head end chuck 2 to clamp the drum flange and the tail stock center 3 to tighten the center hole of the drum shaft end;

[0051] Step 3: Use the horizontal lathe 1 to process the light strips at both ends of the outer circle of the drum; it should be noted that: there are two light strips, which are respectively located on both sides of the rope groove of the drum;

[0052] Step 4: Turn the reel, use the head end chuck 2 to clamp the reel shaft end, install the anti-slip clamp 5 on the slide groove of the head end chuck 2, and tighten the reel shaft end retaining edge, and use the support wheel 41 to roll and support the light tape close to the reel flange end, and ensure that the light tape jump deviation is less than 0.05mm; it should be noted that: the light tape jump deviation in this step can be tested by using a dial indicator or a micrometer.

[0053] Step 5: Use the horizontal lathe 1 to process the outer circle, outer end surface and inner hole of the drum flange;

[0054] Step six: Turn the reel again, clamp the reel by clamping the reel flange with the head end chuck 2 and the reel shaft end top hole with the tail stock top 3, and ensure that the light tape runout deviation is less than 0.05mm; it should be noted that: the light tape runout deviation in this step can be tested by dial indicator or micrometer.

[0055] Step 7: Process the shaft end of the reel using the horizontal lathe 1;

[0056] Step 8: In step 5 or step 7, the drum rope groove is processed by using the horizontal lathe 1 .

[0057] It should be noted that even if small concave areas appear in some small areas of the processed roll flange, the indentations made by the clamping plate 56 on the inner end surface of the roll flange and the indentations made by the claws of the head end chuck 2 will not affect the subsequent assembly and assembly accuracy. Therefore, step six will not affect the quality of the roll.

[0058] It should be noted that: since the required precision of the reel shaft end is higher than that of the reel flange, that is, the small concave area in a small area of ​​the reel shaft end is likely to affect the subsequent assembly and assembly accuracy, it is necessary to first process the reel flange and then use the method of clamping the reel flange to fix the reel to process the reel shaft end.

[0059] Embodiment 2, combined with the attached Figure 4-5 , an auxiliary device for large crane drum turning processing, based on the first embodiment, in order to improve the stability of the drum flange when processing the drum flange, a wheel support frame 4 is provided with a stopper wheel structure 6 with a flexible structure on the side away from the head end chuck 2, and in the processing of the drum flange, the stopper wheel structure 6 is used to flexibly limit the outer end surface of the drum flange in the axial direction;

[0060] Furthermore, the stopper wheel structure 6 includes a mounting plate 61 horizontally arranged on one side of the wheel support frame 4, and a pad 62 is arranged on the upper plate surface of one end of the mounting plate 61 away from the head end chuck 2, and the pad 62 is rotatably connected to a stopper wheel 63 capable of rolling on the outer end surface of the drum flange;

[0061] The flexible structure may be a flexible layer disposed between the wheel axle and the wheel body of the blocking wheel 63, or may be a disc spring assembly 64 disposed between the backing plate 62 and the mounting plate 61; specifically, the disc spring assembly 64 includes a disc spring and disc spring seats at both ends thereof;

[0062] As needed, the disc spring groups 64 are arranged in multiple arrays to ensure the stability of the pad 62.

[0063] As required, a wheel-blocking structure 6 may be provided in the middle of the wheel-supporting frame 4 , and as required, wheel-blocking structures 6 may be provided at both ends of the wheel-supporting frame 4 .

[0064] When using the auxiliary device for large crane drum turning to process the drum:

[0065] Step 1: Draw a machining allowance line on the outer circle of the drum flange and a cross center line on the end face of the drum shaft, and drill a top hole at the intersection of the cross center lines;

[0066] Step 2: Align according to the machining allowance line of the outer circle of the drum flange, and clamp the drum by using the head end chuck 2 to clamp the drum flange and the tail stock center 3 to tighten the center hole of the drum shaft end;

[0067] Step 3: Use the horizontal lathe 1 to process the light bands at both ends of the outer circle of the reel;

[0068] Step 4: Turn the reel, use the head end chuck 2 to clamp the reel shaft end, install the anti-slip clamp 5 on the slide groove of the head end chuck 2, and tighten the reel shaft end flange, use the support wheel 41 to roll and support the optical tape near the reel flange end, and use the blocking wheel structure 6 to resist the outer end surface of the reel flange, and ensure that the optical tape runout deviation is less than 0.05mm;

[0069] Step 5: Use the horizontal lathe 1 to process the outer circle, outer end surface and inner hole of the drum flange;

[0070] Step 6: Turn the reel again, clamp the reel by using the head end chuck 2 to clamp the reel flange and the tail stock top 3 to press against the top hole of the reel shaft end, and ensure that the light tape runout deviation is less than 0.05mm;

[0071] Step 7: Use the horizontal lathe 1 to process the drum shaft end.

[0072] Step 8: In step 5 or step 7, the drum rope groove is processed by using the horizontal lathe 1 .

[0073] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A method for processing a reel using an auxiliary device for processing a large crane reel, characterized in that: The auxiliary device for machining a large crane drum comprises a horizontal lathe (1), wherein the two ends of the horizontal lathe (1) are respectively provided with a head end chuck (2) and a tailstock center (3), and the bed is provided with a wheel support frame (4) having a support wheel (41) at both ends, and the head end chuck (2) is provided with at least three anti-slip clamps (5) at evenly spaced intervals along its circumference, and the circle formed by the anti-slip clamps (5) is located outside the circle formed by the claws of the head end chuck (2), and in the machining of the drum flange, the anti-slip clamps (5) cooperate with the claws of the head end chuck (2) to rigidly limit the axial position of the drum shaft end; The anti-slip clamp (5) comprises a movable structure, a distance adjustment structure and a clamping structure, wherein the movable structure is positionally adjustable and mounted on a corresponding slide groove on the head end chuck (2) so as to facilitate adjustment of the radial position of the clamping structure, and the distance adjustment structure is perpendicular to the head end chuck (2) and is arranged on the movable structure so as to facilitate adjustment of the axial position of the clamping structure; The following steps are involved: Step 1: Draw a machining allowance line on the outer circle of the drum flange and a cross center line on the end face of the drum shaft, and drill a top hole at the intersection of the cross center lines; Step 2: Align according to the machining allowance line of the outer circle of the drum flange, and clamp the drum by using the head end chuck (2) to clamp the drum flange and using the tail stock center (3) to press against the center hole of the drum shaft end; Step 3: Using a horizontal lathe (1) to process the light bands at both ends of the outer circle of the reel; Step 4: Turn the reel, use the head end chuck (2) to clamp the reel shaft end, install the anti-slip clamp (5) on the slide groove of the head end chuck (2), and tighten the reel shaft end flange, and use the support wheel (41) to roll and support the light belt near the flange end of the reel, and ensure that the light belt runout deviation is less than 0.05mm; Step 5: Using a horizontal lathe (1) to process the outer circle, outer end surface and inner hole of the drum flange; Step 6: Turn the reel again, clamp the reel by using the head end chuck (2) to clamp the reel flange and use the tail stock top (3) to press against the top hole of the reel shaft end, and ensure that the light band runout deviation is less than 0.05mm; Step 7: Process the shaft end of the reel using a horizontal lathe (1); Step 8: In step 5 or step 7, use a horizontal lathe (1) to process the drum rope groove.

2. A method for processing a reel using an auxiliary device for processing a large crane reel, characterized in that: The auxiliary device for machining a large crane drum comprises a horizontal lathe (1), wherein the two ends of the horizontal lathe (1) are respectively provided with a head end chuck (2) and a tailstock center (3), and the bed is provided with a wheel support frame (4) having a support wheel (41) at both ends, and the head end chuck (2) is provided with at least three anti-slip clamps (5) at evenly spaced intervals along its circumference, and the circle formed by the anti-slip clamps (5) is located outside the circle formed by the claws of the head end chuck (2), and in the machining of the drum flange, the anti-slip clamps (5) cooperate with the claws of the head end chuck (2) to rigidly limit the axial position of the drum shaft end; The anti-slip clamp (5) comprises a movable structure, a distance adjustment structure and a clamping structure, wherein the movable structure is positionally adjustable and mounted on a corresponding slide groove on the head end chuck (2) so as to facilitate adjustment of the radial position of the clamping structure, and the distance adjustment structure is perpendicular to the head end chuck (2) and is arranged on the movable structure so as to facilitate adjustment of the axial position of the clamping structure; A stopper wheel structure (6) having a flexible structure is provided on the side of the wheel support (4) facing away from the head end chuck (2). When processing the drum flange, the stopper wheel structure (6) is used to flexibly limit the outer end surface of the drum flange in the axial direction. The following steps are involved: Step 1: Draw a machining allowance line on the outer circle of the drum flange and a cross center line on the end face of the drum shaft, and drill a top hole at the intersection of the cross center lines; Step 2: Align according to the machining allowance line of the outer circle of the drum flange, and clamp the drum by using the head end chuck (2) to clamp the drum flange and using the tail stock center (3) to press against the center hole of the drum shaft end; Step 3: Using a horizontal lathe (1) to process the light bands at both ends of the outer circle of the reel; Step 4: Turn the reel, use the head end chuck (2) to clamp the reel shaft end, install the anti-slip clamp (5) on the slide groove of the head end chuck (2), and tighten the reel shaft end retaining edge, use the support wheel (41) to roll and support the optical tape near the reel flange end, and use the retaining wheel structure (6) to contact the outer end surface of the reel flange, and ensure that the optical tape runout deviation is less than 0.05mm; Step 5: Using a horizontal lathe (1) to process the outer circle, outer end surface and inner hole of the drum flange; Step 6: Turn the reel again, clamp the reel by using the head end chuck (2) to clamp the reel flange and use the tail stock top (3) to press against the top hole of the reel shaft end, and ensure that the light band runout deviation is less than 0.05mm; Step 7: Process the shaft end of the reel using a horizontal lathe (1); Step 8: In step 5 or step 7, use a horizontal lathe (1) to process the drum rope groove.

3. A method for processing a drum using an auxiliary device for processing a large crane drum according to claim 1 or 2, characterized in that: The anti-slip clamp (5) comprises a T-shaped head bolt (51), the head of the T-shaped head bolt (51) being movably matched with a corresponding slide groove on the head end chuck (2), the screw rod of the T-shaped head bolt (51) being threadedly connected with a first screw sleeve (52), and the T-shaped head bolt (51) and the first screw sleeve (52) forming a movable structure.

4. A method for processing a drum using an auxiliary device for processing a large crane drum according to claim 3, characterized in that: The length of the first screw sleeve (52) is greater than the length of the screw rod of the T-shaped head bolt (51) extending out of the head end chuck (2); one end of the first screw sleeve (52) facing away from the T-shaped head bolt (51) is threadedly connected to a bidirectional screw rod (53); one end of the bidirectional screw rod (53) facing away from the first screw sleeve (52) is threadedly connected to a second screw sleeve (54); the first screw sleeve (52), the bidirectional screw rod (53) and the second screw sleeve (54) form a pitch adjustment structure.

5. A method for processing a drum using an auxiliary device for processing a large crane drum according to claim 4, characterized in that: A fixing bolt (55) is screwed to one end of the second screw sleeve (54) facing away from the first screw sleeve (52), and a clamping plate (56) is fixed to a position of the screw rod of the fixing bolt (55) between the head thereof and the second screw sleeve (54), so that the second screw sleeve (54), the fixing bolt (55) and the clamping plate (56) form a clamping structure.

6. A method for processing a drum using an auxiliary device for processing a large crane drum according to claim 5, characterized in that: A clearance notch (561) is formed in the middle of one end of the clamping plate (56) away from the fixing bolt (55).

7. A method for processing a drum using an auxiliary device for processing a large crane drum according to claim 2, characterized in that: Wheel blocking structures (6) are provided at both ends of the wheel support frame (4).

8. A method for processing a drum using an auxiliary device for processing a large crane drum according to claim 7, characterized in that: The blocking wheel structure (6) comprises a mounting plate (61) horizontally arranged on one side of the wheel support frame (4); a pad (62) is provided on an upper plate surface of one end of the mounting plate (61) away from the head end chuck (2); and the pad (62) is rotatably connected to a blocking wheel (63) capable of rolling on the outer end surface of the drum flange; Wherein, a flexible layer is provided between the wheel axle and the wheel body of the blocking wheel (63).

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