CN219900442U - Device for adjusting side gap of cutting edge of upper cutter shaft of disc shear - Google Patents
Device for adjusting side gap of cutting edge of upper cutter shaft of disc shear Download PDFInfo
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- CN219900442U CN219900442U CN202321233103.3U CN202321233103U CN219900442U CN 219900442 U CN219900442 U CN 219900442U CN 202321233103 U CN202321233103 U CN 202321233103U CN 219900442 U CN219900442 U CN 219900442U
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- upper cutter
- shaft
- cutter shaft
- screw shaft
- screw
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- 238000005520 cutting process Methods 0.000 title claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 4
- 238000009966 trimming Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The device comprises a screw shaft, a screw nut and an upper cutter shaft adjusting seat, wherein the screw nut is fixedly connected with the upper cutter shaft adjusting seat, and the screw shaft is in meshed connection with the screw nut; the upper cutter shaft is rotatably arranged on the upper cutter shaft adjusting seat, and the upper cutter shaft and the screw shaft are not coaxially arranged; the upper cutter shaft and the screw shaft are not coaxial, so that the screw shaft with the original hollow structure is changed into a solid structure, deep hole precision machining is not required to be carried out on the screw shaft, the machining difficulty of the screw shaft is greatly reduced, and the machining cost of the screw shaft is correspondingly reduced; in addition, the driving of the screw shaft adopts a commercially available finished product high-precision gearless gearbox or directly uses a servo motor to drive, thereby ensuring the rotation driving precision of the screw shaft, improving the adjustment precision of the side gap of the shearing edge of the disc shear and ensuring the trimming quality of the nonferrous metal plate strip.
Description
Technical Field
The utility model relates to the technical field of nonferrous metal rolling trimming equipment, in particular to a device for adjusting the side clearance of a cutting edge of an upper cutter shaft of a disc shear.
Background
The disc shear is one of core equipment for nonferrous metal rolling production and is used for shearing edge defects of nonferrous metal plates and strips in the rolling process. In the side gap adjusting structure of the conventional disc shear blade, the upper cutter shaft and the axial adjusting sleeve are generally of a coaxial structure design, and the upper cutter shaft is rotationally connected with the axial adjusting sleeve through a bearing, so that the connecting structure between the upper cutter shaft and the axial adjusting sleeve is complex, and particularly the axial adjusting sleeve is of a hollow structure, deep hole precision machining is required, and the axial adjusting sleeve is difficult to process and high in cost. In addition, the axial position of the axial adjusting sleeve is required to be adjusted by driving the axial adjusting sleeve to rotate through a pair of meshing gears, and due to the influence of the machining precision of the pair of meshing gears, a meshing gap is usually formed between the axial adjusting sleeve and the meshing gap, and the adjusting precision of the side gap of the shearing edge of the disc shear is influenced by the existence of the meshing gap, so that the trimming quality of the nonferrous metal plate strip is influenced.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses a device for adjusting the side clearance of the cutting edge of an upper cutter shaft of a disc shear, which comprises a screw shaft, a screw nut and an upper cutter shaft adjusting seat, wherein the screw nut is fixedly connected with the upper cutter shaft adjusting seat, and the screw shaft is in meshed connection with the screw nut; the upper cutter shaft is rotatably arranged on the upper cutter shaft adjusting seat, and the upper cutter shaft and the screw shaft are not coaxially arranged; the upper cutter shaft and the screw shaft are not coaxial, so that the screw shaft with the original hollow structure is changed into a solid structure, deep hole precision machining is not required to be carried out on the screw shaft, the machining difficulty of the screw shaft is greatly reduced, and the machining cost of the screw shaft is correspondingly reduced; in addition, the screw shaft is driven by adopting a commercially available finished product high-precision gearless gearbox or directly using a servo motor, so that the gap existing in the meshing of the original gear is eliminated, the rotation driving precision of the screw shaft is ensured, and the adjustment precision of the side gap of the shearing edge of the circular shear is improved.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: the device is used for accurately adjusting the axial position of the upper cutter shaft; the device comprises a screw shaft, a screw nut and an upper cutter shaft adjusting seat, wherein the screw nut is fixedly connected with the upper cutter shaft adjusting seat, and the screw shaft is in meshed connection with the screw nut; the upper cutter shaft is rotatably arranged on the upper cutter shaft adjusting seat, and the upper cutter shaft and the screw shaft are not coaxially arranged; by adopting the structural design that the upper cutter shaft and the screw shaft are not coaxial, the screw shaft with the original hollow structure is changed into a solid structure, deep hole precision machining is not required to be carried out on the screw shaft, the machining difficulty of the screw shaft is greatly reduced, and the machining cost of the screw shaft is correspondingly reduced.
Preferably, the upper cutter shaft adjusting seat is fixedly connected with an upper cutter shaft seat, and the upper cutter shaft is rotatably arranged on the upper cutter shaft seat; in the device for adjusting the cutting edge side gap of the upper cutter shaft of the disc shear, the axial position (cutting edge side gap) of the upper cutter shaft is adjusted by matching the screw shaft with the screw nut, so that the rotary motion of the screw shaft is converted into the linear motion of the screw nut, and the linear motion of the screw nut drives the upper cutter shaft adjusting seat to do linear motion, thereby realizing the accurate adjustment of the axial position of the upper cutter shaft.
Further, the device also comprises a bearing seat and a base, wherein the bearing seat is fixedly arranged on the base; the screw shaft is rotationally connected with the bearing seat through a bearing.
Furthermore, the bearings adopt angular contact ball bearings, two angular contact ball bearings are arranged, the two angular contact ball bearings are arranged in a back-to-back mode, and the axial clearance of the two angular contact ball bearings is eliminated, so that the axial movement of the screw shaft is eliminated.
Further, the screw shaft is connected with a speed reducer through a coupler, the speed reducer is connected with a servo motor, and the rotary motion of the servo motor is output after being decelerated by the speed reducer to drive the screw shaft to rotate.
Furthermore, the speed reducer is a commercially available finished product high-precision gearless speed reducer; the commercial finished product high-precision gearless gearbox is produced in batches by a professional manufacturer, has the advantages of high precision and low cost, and simultaneously completely eliminates the problem of meshing clearance existing due to machining precision when the driving gear is machined by self, so that the rotation precision of the screw shaft is ensured.
Preferably, the screw shaft is directly connected with a servo motor through a coupler, and the screw shaft is directly driven by the servo motor, so that the problem of gaps existing in gear engagement is completely eliminated, and meanwhile, the device has the advantage of low cost.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects: the utility model discloses a side gap adjusting device for a cutting edge of an upper cutter shaft of a disc shear, which comprises a screw shaft, a screw nut and an upper cutter shaft adjusting seat, wherein the screw nut is fixedly connected with the upper cutter shaft adjusting seat, and the screw shaft is in meshed connection with the screw nut; the upper cutter shaft is rotatably arranged on the upper cutter shaft adjusting seat, and the upper cutter shaft and the screw shaft are not coaxially arranged; the upper cutter shaft and the screw shaft are not coaxial, so that the screw shaft with the original hollow structure is changed into a solid structure, deep hole precision machining is not required to be carried out on the screw shaft, the machining difficulty of the screw shaft is greatly reduced, and the machining cost of the screw shaft is correspondingly reduced; in addition, the driving of the screw shaft adopts a commercially available finished product high-precision gearless gearbox or directly uses a servo motor to drive, thereby ensuring the rotation driving precision of the screw shaft, improving the adjustment precision of the side gap of the shearing edge of the disc shear and ensuring the trimming quality of the nonferrous metal plate strip.
Drawings
Fig. 1 is a structural sectional view of a cutter blade backlash adjustment device of an upper cutter shaft of a disc shear according to a first embodiment;
FIG. 2 is a schematic view of a screw shaft structure;
FIG. 3 is a cross-sectional view of a screw shaft rotational assembly structure;
fig. 4 is a bottom view of a cutter blade backlash adjustment device of an upper cutter shaft of the disc shear of the first embodiment;
fig. 5 is a bottom view of a cutter blade backlash adjustment device of a disc shear in accordance with the second embodiment;
fig. 6 is a structural cross-sectional view of a blade backlash adjustment device of an upper cutter shaft of a disc shear according to a third embodiment.
In the figure: 1. a servo motor; 2. a speed reducer; 2.1, a speed reducer shaft; 3. a coupling; 4. a screw shaft; 4.1, a shaft diameter section of the coupler; 4.2, a thread shaft diameter section; 4.3, mounting a shaft diameter section on the bearing; 4.4, a precise screw rod section; 4.5, a bearing; 4.6, a bearing mounting sleeve A;4.7, a bearing mounting sleeve B;4.8, a bearing fixing nut; 4.9, a bearing end cover; 4.10, a bearing isolation sleeve; 5. a lead screw nut; 6. an upper cutter shaft adjusting seat; 7. a base; 8. a decelerator mounting seat; 9. a bearing seat; 10. an upper cutter shaft seat; 11. and (5) an upper cutter shaft.
Detailed Description
The utility model will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the utility model.
Embodiment one:
see fig. 1 of the specification: the side gap adjusting device of the upper cutter shaft cutting edge of the disc shear is used for accurately adjusting the axial position of the upper cutter shaft 11; the device comprises a servo motor 1, a speed reducer 2, a coupler 3, a screw shaft 4, a screw nut 5, an upper cutter shaft adjusting seat 6, a base 7, a speed reducer mounting seat 8, a bearing seat 9 and an upper cutter shaft 11; the speed reducer mounting seat 8 and the bearing seat 9 are fixedly arranged on the base 7; the servo motor 1 and the speed reducer 2 are fixedly connected, the speed reducer 2 is fixedly connected to the outer side face of the speed reducer mounting seat 8, and the right end face of the speed reducer extends to form a speed reducer shaft 2.1; see fig. 2 of the specification: the screw shaft 4 is a stepped shaft and comprises a shaft coupling shaft diameter section 4.1, a threaded shaft diameter section 4.2, a bearing mounting shaft diameter section 4.3 and a precise screw shaft section 4.4 in sequence from left to right, and the speed reducer shaft 2.1 is fixedly connected with the shaft coupling shaft diameter section 4.1 of the screw shaft 4 through a shaft coupling 3; the screw shaft 4 is rotationally connected with the bearing seat 9 through two sets of bearings 4.5, and the bearings 4.5 adopt angular contact ball bearings; the screw nut 5 is fixedly arranged on the left side surface of the upper cutter shaft adjusting seat 6, and the precise screw section 4.4 is meshed with the screw nut 5; referring to fig. 4 of the specification, an upper cutter shaft 11 is rotatably arranged on an upper cutter shaft adjusting seat 6, and the upper cutter shaft 11 and a screw shaft 4 are arranged in a non-coaxial manner;
for a specific connection structure of the screw shaft 4 and the bearing seat 9, see fig. 3 in the specification: the two sets of angular contact ball bearings are arranged in the through holes of the bearing seat 9 in a back-to-back mode, and are separated by the bearing isolation sleeve 4.10; bearing end covers 4.9 are fixedly arranged on the end surfaces of the left side and the right side of the bearing seat 9, and the inner convex circle of the bearing end cover 4.9 is abutted against the outer end surfaces of the outer ferrules of the two sets of angular contact ball bearings, so that the axial positioning of the two sets of angular contact ball bearings in the through holes of the bearing seat 9 is realized; the bearing mounting shaft diameter section 4.3 of the screw shaft 4 is arranged in a through hole of the angular contact ball bearing inner sleeve, a bearing mounting sleeve A4.6 is arranged between the right-side angular contact ball bearing inner sleeve and a step surface of the precise screw shaft section 4.4, a bearing mounting sleeve B4.7 is arranged on the left end surface of the left-side angular contact ball bearing inner sleeve, a bearing fixing nut 4.8 is arranged on the threaded shaft diameter section 4.2, a rotary bearing fixing nut 4.8 compresses the bearing mounting sleeve B4.7, and the bearing mounting sleeve B4.7 compresses the bearing mounting sleeve B4.7, and meanwhile, the gap between two sets of angular contact ball bearings is eliminated; the two bearing fixing nuts 4.8 are arranged, and after the gap adjustment of the two sets of angular contact ball bearings is completed, the two bearing fixing nuts 4.8 are tightly prepared to prevent loosening.
When the cutting edge side gap of the cutter shaft on the disc shear needs to be adjusted, the servo motor 1 rotates, and the rotation of the servo motor 1 is transmitted to the screw shaft 4 through the speed reducer 2 and the coupler 3; the screw shaft 4 rotates to drive the screw nut 5 to do linear motion, and the screw nut 5 drives the upper cutter shaft 11 to do linear motion through the upper cutter shaft adjusting seat 6, so that the accurate adjustment of the side gap of the cutting edge of the upper cutter shaft of the disc shear is realized.
Embodiment two:
see fig. 5 of the specification: the upper cutter shaft adjusting seat 6 is fixedly connected with an upper cutter shaft seat 10, and the upper cutter shaft 11 is rotatably arranged on the upper cutter shaft seat 10.
Embodiment III:
see fig. 6 of the specification: the screw shaft 4 is directly connected with the servo motor 1 through the coupler 3.
The utility model is not described in detail in the prior art.
Claims (7)
1. The side clearance adjusting device of the upper cutter shaft cutting edge of the disc shear is used for accurately adjusting the axial position of the upper cutter shaft (11); the method is characterized in that: the device comprises a screw shaft (4), a screw nut (5) and an upper cutter shaft adjusting seat (6), wherein the screw nut (5) is fixedly connected with the upper cutter shaft adjusting seat (6), and the screw shaft (4) is meshed with the screw nut (5); the upper cutter shaft (11) is rotatably arranged on the upper cutter shaft adjusting seat (6), and the upper cutter shaft (11) and the screw shaft (4) are arranged in a non-coaxial way.
2. The disc shear upper arbor shear blade backlash adjustment device of claim 1, characterized by: the upper cutter shaft adjusting seat (6) is fixedly connected with an upper cutter shaft seat (10), and the upper cutter shaft (11) is rotatably arranged on the upper cutter shaft seat (10).
3. The disc shear upper arbor shear blade backlash adjustment device of claim 1 or 2, characterized in that: the device also comprises a bearing seat (9) and a base (7), wherein the bearing seat (9) is fixedly arranged on the base (7); the screw shaft (4) is rotationally connected with the bearing seat (9) through a bearing (4.5).
4. A disc shear upper arbor shear blade backlash adjustment device according to claim 3, characterized in that: the bearings (4.5) are angular contact ball bearings, two angular contact ball bearings are arranged, and the two angular contact ball bearings are arranged in a back-to-back mode.
5. The disc shear upper arbor shear blade backlash adjustment device of claim 4, further comprising: the screw shaft (4) is connected with a speed reducer (2) through a coupler (3), and the speed reducer (2) is connected with a servo motor (1).
6. The disc shear upper arbor shear blade backlash adjustment device of claim 5, further comprising: the speed reducer (2) is a commercially available finished product high-precision gearless speed reducer box.
7. The disc shear upper arbor shear blade backlash adjustment device of claim 4, further comprising: the screw shaft (4) is directly connected with a servo motor (1) through a coupler (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321233103.3U CN219900442U (en) | 2023-05-22 | 2023-05-22 | Device for adjusting side gap of cutting edge of upper cutter shaft of disc shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321233103.3U CN219900442U (en) | 2023-05-22 | 2023-05-22 | Device for adjusting side gap of cutting edge of upper cutter shaft of disc shear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219900442U true CN219900442U (en) | 2023-10-27 |
Family
ID=88435670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321233103.3U Active CN219900442U (en) | 2023-05-22 | 2023-05-22 | Device for adjusting side gap of cutting edge of upper cutter shaft of disc shear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219900442U (en) |
-
2023
- 2023-05-22 CN CN202321233103.3U patent/CN219900442U/en active Active
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