Machining device and machining method for split type wedge of winding drum

Abstract

The machining device for the split type wedge of the winding drum comprises a tool central spindle, threads are arranged on a spindle body at one end of the tool central spindle, the other end of the tool central spindle is fixedly connected with an abutting part, a plurality of spacer sleeves are arranged on the tool central spindle, and the end, provided with the threads, of the tool central spindle is connected with a fastening nut. And through the processing method of the winding drum split type tapered wedge, the problem that in the prior art, when a single tapered wedge is processed, the deviation of the inclined plane distance and the flatness of each tapered wedge is large is solved.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical processing and manufacturing technology, and relates to a processing device for a split-type inclined wedge, and also to a processing method for processing the inclined wedge using the processing device. Background Technology

[0002] Coiling machines are used in many industries, with the steel plate coiling machine in the metallurgical industry being the most representative. It is an auxiliary device in rolling mills that coils hot-rolled or cold-rolled steel into rolls. This type of equipment has been widely adopted by advanced steel production enterprises worldwide. The main components of a coil typically include: a main shaft, tie rods, wedges, crossheads, and sector plates.

[0003] In the process of coiling hot-rolled or cold-rolled linear steel into cylindrical coils, the radial expansion and contraction of the sector plate is achieved through the axial movement of the wedge, ensuring smooth coiling and uncoiling of the coil. The machining accuracy of the axial wedge component is particularly important, as it is crucial for ensuring smooth operation of the coil. Since the axial wedge typically has multiple inclined surfaces in contact with the radial wedge, ensuring the distance between these inclined surfaces during machining is critical. For the machining process of integral axial wedges, because the part is a single unit, all inclined surfaces share the same alignment datum, and the distance between each inclined surface can be strictly guaranteed according to CNC machine tool machining standards.

[0004] However, for split axial wedges, which are usually grouped into sets of 3 to 4, since the inclined surfaces are not on a single part and are processed individually, it is impossible to guarantee that the inclined surface distance and flatness of each part are consistent after assembly. The deviation is large, which affects the contact rate with the related radial wedges, resulting in inconsistent stress on the parts and affecting the product life cycle. Summary of the Invention

[0005] The purpose of this invention is to provide a processing device for split-type wedges on a roll, which solves the problem in the prior art that the distance between the inclined surfaces and the flatness deviation of each wedge are large when processing individual wedges.

[0006] Another objective of this invention is to provide a method for processing a split-type wedge on a roll, which has the characteristic of improving the deviation accuracy of the inclined surface distance and flatness after the wedge is processed.

[0007] The technical solution adopted in this invention includes a tooling mandrel, one end of which is threaded, and the other end of which is fixedly connected to an abutment portion. Several spacer sleeves are provided on the tooling mandrel, and a fastening nut is connected to one of the threaded ends of the tooling mandrel.

[0008] The invention is further characterized by: The tooling mandrel has several keyways spaced at equal intervals on its shaft, and a fixing key is inserted into the keyways to fix the workpiece.

[0009] A spacer sleeve is set between several workpieces, with both ends of the spacer sleeve abutting against the workpieces.

[0010] The workpiece near the abutment part abuts against the ground abutment part, and the workpiece near the tooling mandrel with a threaded end abuts against the fastening nut.

[0011] The diameter of the contact part is larger than the diameter of the mounting through hole of the workpiece.

[0012] Another technical solution adopted in this invention is a processing method for a split-type inclined wedge on a roll, which is implemented according to the following steps: Step 1: Install several split axial wedges on the tooling mandrel; Step 2: Place a 90° V-shaped iron of equal height under one of the inclined surfaces of the split axial wedges at various locations, and use a pressure plate to press and tighten the parts to fix them. Step 3: Align the parts to complete the machining and alignment of the parts; Step 4: Adjust the machine tool angle milling head to the same slope angle as the split axial wedge, and machine the wedges on the top of the part on the same slope. Step 5: Loosen the pressure plate and repeat steps 2 to 4 to process the other three inclined surfaces of the split axial wedge; Step 6: After processing, remove the split axial wedge.

[0013] In step 2, it is necessary to ensure that the inclined surface of the V-shaped iron is coplanar with the inclined surface of the split axial wedge, with a deviation ≤ 0.03.

[0014] In step 3, the part is aligned using a double generatrix at 90° to the outer circles at both ends of the tooling mandrel and the length direction of the outer circles, with the alignment deviation required to be ≤0.03.

[0015] In step 5, the assembled parts are rotated 90°, 180° and 270° along the length direction respectively, and steps 2 to 4 are repeated to process the other three inclined surfaces of the split axial wedge in the assembly, thus completing the processing.

[0016] The beneficial effects of this invention are: Simultaneous machining of split axial wedges solves the problem of large deviations in the inclined surface distance and flatness of each wedge when machining a single part; eliminates the cumulative error during assembly after machining a single part; and eliminates the single-part alignment error during machine tool machining by using the same alignment datum. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the split-type axial wedge integral structure; Figure 2 This is a split-type axial wedge side view; Figure 3This is a schematic diagram of a split-type axial wedge installed on a machining device for the same machining process.

[0018] In the figure, 1 is a split axial wedge, 2 is a fastening nut, 3 is a fixing key, 4 is a tooling mandrel, 5 is a first spacer sleeve, and 6 is a second spacer sleeve. Detailed Implementation

[0019] The following detailed description is provided in conjunction with specific implementation methods.

[0020] Example 1 refer to Figures 1-2 As shown, the processing device for the split-type wedge includes a tooling mandrel 4, a fastening nut 2, and a fixing key 3. In this embodiment, the workpiece is a split-type axial wedge 1. The split-type axial wedge 1 has a mounting through hole in its center for mounting the split-type axial wedge 1 onto the tooling mandrel 4. Keyways are distributed on the inner wall of the split-type axial wedge 1. The tooling mandrel 4 has keyways at equal intervals corresponding to the keyways on the split-type axial wedge 1. The left side of the tooling mandrel 4 has threads, and the right top surface of the tooling mandrel 4 has a fixed abutment portion. In this embodiment, the abutment portion is a circular plate structure. The radius of the circular plate structure is larger than the radius of the mounting through hole of the split-type axial wedge 1. After installation, the split-type axial wedge 1 abuts against the circular plate structure.

[0021] Reference Figure 3 As shown, three split axial wedges 1 are installed sequentially from right to left on the tooling mandrel 4. A second spacer sleeve 6 is fitted on the tooling mandrel 4 between the two split axial wedges 1 on the right, and a first spacer sleeve 5 is fitted on the tooling mandrel 4 between the two split axial wedges 1 on the left. At the same time, during the installation process, a fixing key 3 is installed in the keyway between the inner hole of the split axial wedge 1 and the outer circle of the tooling mandrel 4. The two adjacent split axial wedges 1 are separated by the first spacer sleeve 5 and the second spacer sleeve 6 to ensure that each split axial wedge 1 cannot move radially. Finally, the fastening nut 2 is threaded to the left end of the tooling mandrel 4 to fasten the three split axial wedges 1. This completes the axial and radial fixing of the split axial wedges 1.

[0022] The working principle of the processing device for the split-type wedge of this invention is as follows: First, based on the actual processing requirements, determine the size of the tooling mandrel 4, the size of the spacer sleeve, and the number of split-type axial wedges 1 to be processed together. After selecting the dimensions of each part, assembly begins. The first split-type axial wedge 1 is installed on the side closest to the contact part and fixed with a fixing key 3. Then, a spacer sleeve and a split-type axial wedge 1 are installed sequentially, and each split-type axial wedge 1 is fixed with a fixing key 3 until the last split-type axial wedge 1 is installed on the tooling mandrel 4. Finally, a fastening nut 2 is threaded onto the tooling mandrel 4, tightening all split-type axial wedges 1 and spacer sleeves. This processing device allows the split-type axial wedges 1 to be processed together, with a unified alignment reference, ensuring that each dimension meets the requirements. After assembly and processing, the deviation in the inclined surface distance and flatness of each wedge is smaller.

[0023] Example 2 The machining method for the split-type inclined wedge of the roll is carried out according to the following steps: Step 1: Install the split axial wedge 1 onto the tooling mandrel 4; Step 2: Place a 90° V-shaped iron of equal height under one of the inclined surfaces of the split axial wedge 1 at each location. Place the V-shaped iron of equal height on the machine tool worktable and use a pressure plate to press it on both ends of the length of each spacer sleeve and tooling mandrel 4 to ensure that the parts are firmly fixed. The V-shaped iron of equal height needs to ensure that the inclined surfaces of the V-shaped iron are coplanar and the deviation is ≤0.03. Step 3: Align the part by using the outer circles at both ends of the tooling mandrel 4 and the double generatrix at 90° along the length direction of the outer circles. The alignment deviation should be ≤0.03. This completes the machining alignment of the part. Step 4: Adjust the angle milling head of the machine tool to the same slope angle as the split axial wedge 1, and process the same slope of the split axial wedge 1 at all parts of the top of the part to ensure that the slope distance of different split axial wedge 1 meets the requirements of the drawing. Step 5: Loosen the part pressure plate, rotate the assembled parts 90°, 180° and 270° along the length direction respectively, and repeat steps 2 to 4 to process the other three inclined surfaces of the split axial wedge 1 in the assembly to complete the processing. Step 6: After processing, remove the fastening nut 2, as well as each of the split axial wedges 1, the first spacer sleeve 5, the second spacer sleeve 6, and the fixing key 3.

[0024] Example 3 In this embodiment, refer to the appendix. Figure 1-3As shown, the machining device for the split-type inclined wedge of the reel includes a tooling mandrel 4. A thread is provided on the shaft body of one end of the tooling mandrel 4. A fastening nut 2 is threadedly connected to the threaded end of the tooling mandrel 4. The other end of the tooling mandrel 4 is fixed to a grounding part. In this embodiment, the grounding part is a circular plate structure. Another spacer sleeve is provided on the shaft body of the tooling mandrel 4, namely a first spacer sleeve 5 and a second spacer sleeve 6. The function of the first spacer sleeve 5 and the second spacer sleeve 6 is to clamp between two workpieces to fix and abut the workpieces and reserve machining space.

[0025] Example 4 In this embodiment, refer to the appendix. Figure 1-3 As shown, the machining device for the split-type inclined wedge of the reel includes a tooling mandrel 4. A thread is provided on the shaft body of one end of the tooling mandrel 4. A fastening nut 2 is threadedly connected to the threaded end of the tooling mandrel 4. The other end of the tooling mandrel 4 is fixed to a grounding part. In this embodiment, the grounding part is a circular plate structure. Another spacer sleeve is provided on the shaft body of the tooling mandrel 4, namely a first spacer sleeve 5 and a second spacer sleeve 6. The function of the first spacer sleeve 5 and the second spacer sleeve 6 is to clamp between two workpieces to fix and abut the workpieces and reserve machining space.

[0026] The part being machined is specifically a split-type axial wedge 1, see reference. Figure 3 As shown, among the three split axial wedges 1, a first spacer sleeve 5 and a second spacer sleeve 6 are respectively provided between two split axial wedges 1. Three keyways corresponding to the installation positions of the split axial wedges 1 are equally spaced on the tooling mandrel 4, and corresponding keyways are also provided in the installation through holes of the split axial wedges 1. The three split axial wedges 1 are fixedly installed on the tooling mandrel 4 by three fixing keys 3.

[0027] Example 5 In this embodiment, refer to the appendix. Figure 1-3 As shown, the machining device for the split-type inclined wedge of the reel includes a tooling mandrel 4. A thread is provided on the shaft body of one end of the tooling mandrel 4. A fastening nut 2 is threadedly connected to the threaded end of the tooling mandrel 4. The other end of the tooling mandrel 4 is fixed to a grounding part. In this embodiment, the grounding part is a circular plate structure. Another spacer sleeve is provided on the shaft body of the tooling mandrel 4, namely a first spacer sleeve 5 and a second spacer sleeve 6. The function of the first spacer sleeve 5 and the second spacer sleeve 6 is to clamp between two workpieces to fix and abut the workpieces and reserve machining space.

[0028] The part being machined is specifically a split-type axial wedge 1, see reference. Figure 3As shown, among the three split axial wedges 1, a first spacer sleeve 5 and a second spacer sleeve 6 are respectively provided between two split axial wedges 1. Three keyways corresponding to the installation positions of the split axial wedges 1 are equally spaced on the tooling mandrel 4, and corresponding keyways are also provided in the installation through holes of the split axial wedges 1. The three split axial wedges 1 are fixedly installed on the tooling mandrel 4 by three fixing keys 3.

[0029] The split axial wedge 1 installed near the ground connection abuts against the ground connection. The split axial wedge 1 with a threaded end near the tooling spindle 4 abuts against the fastening nut 2, thereby clamping the first spacer sleeve 5 and the second spacer sleeve 6 between the two split axial wedges 1, and the split axial wedge 1 between the two spacer sleeves, so as to install them compactly.

[0030] Example 6 In this embodiment, refer to the appendix. Figure 1-3 As shown, the machining device for the split-type inclined wedge of the reel includes a tooling mandrel 4. A thread is provided on the shaft body of one end of the tooling mandrel 4. A fastening nut 2 is threadedly connected to the threaded end of the tooling mandrel 4. The other end of the tooling mandrel 4 is fixed to a grounding part. In this embodiment, the grounding part is a circular plate structure. Another spacer sleeve is provided on the shaft body of the tooling mandrel 4, namely a first spacer sleeve 5 and a second spacer sleeve 6. The function of the first spacer sleeve 5 and the second spacer sleeve 6 is to clamp between two workpieces to fix and abut the workpieces and reserve machining space.

[0031] The part being machined is specifically a split-type axial wedge 1, see reference. Figure 3 As shown, among the three split axial wedges 1, a first spacer sleeve 5 and a second spacer sleeve 6 are respectively provided between two split axial wedges 1. Three keyways corresponding to the installation positions of the split axial wedges 1 are equally spaced on the tooling mandrel 4, and corresponding keyways are also provided in the installation through holes of the split axial wedges 1. The three split axial wedges 1 are fixedly installed on the tooling mandrel 4 by three fixing keys 3.

[0032] The split axial wedge 1 installed near the ground connection abuts against the ground connection. The split axial wedge 1 with a threaded end near the tooling spindle 4 abuts against the fastening nut 2, thereby clamping the first spacer sleeve 5 and the second spacer sleeve 6 between the two split axial wedges 1, and the split axial wedge 1 between the two spacer sleeves, so as to install them compactly.

[0033] In this embodiment, the abutting part is a circular plate structure. The diameter of the circular plate structure is larger than the diameter of the through hole of the split axial wedge 1, so that the split axial wedge 1 can effectively abut the abutting part.

[0034] Example 7 The processing method of the split-type wedge of the present invention is as follows: (1) rough machining of the split-type axial wedge 1, leaving a 3mm machining allowance on each machining surface; (2) connecting each split-type wedge with tooling; (3) processing with a unified alignment datum to ensure that each dimension meets the usage requirements; (4) disassembling each part.

[0035] The processing results of the split axial wedge 1 according to the processing method of the present invention are as follows: after assembly and processing, the distance deviation of the inclined surfaces of each wedge is 0.03mm, and the flatness deviation is 0.05mm.

[0036] The traditional method for machining a single split axial wedge is to machine it individually according to the machining drawings.

[0037] After machining a single piece of the split-type axial wedge, the distance between the inclined surfaces of each wedge is 0.5mm, and the flatness deviation is 1mm.

[0038] The above comparison shows that traditional single-piece machining methods, due to cumulative assembly errors and machine tool alignment errors, result in final errors manifested entirely in the wedge's inclined surface distance and flatness. The inclined surface distance deviation of each wedge is 0.5mm, and the flatness deviation is 1mm. In contrast, the machining method of the present invention, using a split-type inclined wedge, fixes multiple split-type axial wedges 1 with a dedicated tooling mandrel 4 and processes them simultaneously. Assembly errors are eliminated before machining, and a consistent machining alignment datum is used, ultimately ensuring that the finished part meets the required machining accuracy. After machining, the inclined surface distance deviation of each split-type axial wedge 1 is 0.03mm, and the flatness deviation is 0.05mm.

Claims

1. A processing device for a split-type inclined wedge, characterized in that, Includes a tooling mandrel (4), one end of which is threaded, and the other end of which is fixedly connected to an abutment part. The tooling mandrel (4) is provided with several spacer sleeves, and the tooling mandrel (4) has a threaded end connected to a fastening nut (2).

2. The processing device for the split-type inclined wedge according to claim 1, characterized in that, The tooling mandrel (4) has several keyways spaced at equal intervals on its shaft, and a fixing key (3) is inserted into the keyways to fix the workpiece.

3. The processing device for the split-type inclined wedge according to claim 2, characterized in that, A spacer sleeve is provided between several of the workpieces to be processed, and the two ends of the spacer sleeve abut against the workpieces to be processed.

4. The processing device for the split-type inclined wedge according to claim 1, characterized in that, The workpiece near the abutting part abuts against the ground abutting part, and the workpiece near the tooling mandrel (4) with a threaded end abuts against the fastening nut (2).

5. The processing device for a split-type inclined wedge according to claim 4, characterized in that, The diameter of the abutment portion is larger than the diameter of the through hole for mounting the workpiece.

6. A method for processing a split-type beveled wedge, using the processing apparatus for a split-type beveled wedge as described in claims 1-5, characterized in that, Follow these steps: Step 1: Install several split axial wedges (1) onto the tooling mandrel (4); Step 2: Place a 90° V-shaped iron of equal height under one of the inclined surfaces of the split axial wedges (1) at various locations, and press it with a pressure plate to fix the parts. Step 3: Align the parts to complete the machining and alignment of the parts; Step 4: Adjust the angle milling head of the machine tool to the same slope angle as the split axial wedge (1), and process the wedges at the top of the part on the same slope. Step 5: Loosen the pressure plate and repeat steps 2 to 4 to process the other three inclined surfaces of the split axial wedge (1); Step 6: After processing, remove the split axial wedge (1).

7. The processing method of the split-type inclined wedge according to claim 6, characterized in that, In step 2, it is necessary to ensure that the inclined surface of the V-shaped iron is coplanar with the inclined surface of the split axial wedge (1), with a deviation ≤0.

03.

8. The processing method of the split-type inclined wedge according to claim 6, characterized in that, In step 3, the parts are aligned using the outer circles at both ends of the tooling mandrel (4) and the double generatrix at 90° along the length direction of the outer circles, with the alignment deviation required to be ≤0.

03.

9. The processing method of the split-type inclined wedge according to claim 6, characterized in that, In step 5, the assembled parts are rotated 90°, 180° and 270° along the length direction respectively, and steps 2 to 4 are repeated to process the other three inclined surfaces of the split axial wedge (1) in the assembly to complete the processing.

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