CN112846816B - High-precision machining equipment for synchronous belt pulley and machining method thereof - Google Patents
High-precision machining equipment for synchronous belt pulley and machining method thereof Download PDFInfo
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- CN112846816B CN112846816B CN202110153390.6A CN202110153390A CN112846816B CN 112846816 B CN112846816 B CN 112846816B CN 202110153390 A CN202110153390 A CN 202110153390A CN 112846816 B CN112846816 B CN 112846816B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
Abstract
The invention discloses equipment for high-precision machining of a synchronous belt pulley, wherein a power machine case A (7) is arranged outside the left side wall of a machine tool body (1), an output shaft of the power machine case A (7) extends into the machine tool body (1), a three-jaw chuck A (8) is installed at the extending end of the output shaft, a horizontally-arranged hydraulic sliding table (9) is fixedly arranged in the machine tool body (1), a power machine case B (10) is fixedly arranged on the table surface of the hydraulic sliding table (9), a three-jaw chuck B (11) is installed on the output shaft of the power machine case B (10), the three-jaw chuck B (11) and the three-jaw chuck A (8) are oppositely arranged, and the axis of the three-jaw chuck B (11) and the axis of the three-jaw chuck A (8) are on the same horizontal straight line. The invention has the beneficial effects that: the machining precision, the parallelism and the coaxiality of the synchronous belt wheel are improved.
Description
Technical Field
The invention relates to the technical field of synchronous pulley processing, in particular to equipment for processing a synchronous pulley with high precision and a processing method thereof.
Background
The synchronous pulley is an important component of a mechanical transmission mechanism, and the structure of the synchronous pulley is shown in figure 1, and the synchronous pulley comprises a small shaft 13 and a large shaft 14 which are integrally formed, wherein the small shaft 13 and the large shaft 14 are coaxially arranged, teeth 15 are processed on the large shaft 14 in the circumferential direction of the large shaft, and a central hole 16 is formed in the synchronous pulley along the axial direction of the synchronous pulley. The existing process for machining the synchronous belt pulley is that a worker firstly fits one end of a blank on a three-jaw chuck of a lathe; turning a turning tool on a lathe to machine the small shaft 13; turning the end face of the small shaft 13 to obtain an end face A17; a worker detaches the blank from the three-jaw chuck, turns the blank by 180 degrees and clamps the small shaft 13 on the three-jaw chuck; turning the large shaft 14 by using a turning tool; turning the end face of the large shaft 14 to obtain an end face B18; boring along the axial direction of the blank from the large end face of the large shaft 14 by using a boring cutter, ensuring that the boring cutter penetrates through the small shaft 13, and processing a central hole 16 after boring; tooling the blank onto a gear shaping machine to shape teeth on the outer edge of the large shaft 14 to finish the synchronous pulley.
However, this process, although capable of producing synchronous pulleys, still has the following drawbacks: I. after the small shaft 13 and the end face a17 are formed, the blank needs to be turned over by 180 degrees to be fixed on the three-jaw chuck, at this time, the axis of the blank is not overlapped with the axis of the three-jaw chuck any more, so that the coaxiality of the subsequently processed large shaft 14, the central hole 16 and the small shaft 13 is low, and the parallelism of the subsequently processed end face B18 and the end face a17 is low, thereby reducing the processing precision of the synchronous pulley. II. The blank tooling is required to be fixed to a forming station of the gear shaping machine subsequently, accumulated positioning errors are increased, the coaxiality of subsequently processed teeth 15 and a large shaft 14 is low, and the processing precision of the synchronous pulley is further reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides equipment for machining a synchronous pulley with high precision, which improves the machining precision, parallelism and coaxiality of the synchronous pulley and a machining method thereof.
The purpose of the invention is realized by the following technical scheme: the utility model provides an equipment of high accuracy processing synchronous pulley, it includes the lathe bed, is provided with the blade disc in the lathe bed, is provided with excircle lathe tool, end face lathe tool, boring cutter and slotting cutter on the blade disc, the outside of lathe bed left side wall is provided with engine case A, and engine case A's output shaft stretches into in the lathe bed, and the extension of output shaft serves and installs three-jaw chuck A, set firmly the hydraulic sliding table that the level set up in the lathe bed, set firmly engine case B on the mesa of hydraulic sliding table, install three-jaw chuck B on engine case B's the output shaft, three-jaw chuck B sets up with three-jaw chuck A relatively, and three-jaw chuck B's axis and three-jaw chuck A's axis are in on same horizontal straight line.
The hydraulic sliding table is arranged at the bottom of the machine tool body.
The hydraulic power machine further comprises a PLC control system, and the PLC control system is electrically connected with the hydraulic sliding table, the cutter head, the power machine case A and the power machine case B.
The method for machining the synchronous pulley with high precision by the equipment comprises the following steps:
s1, a small shaft is machined on a blank, a worker clamps a tool at one end of the blank in a three-jaw chuck A, a PLC control system controls a cutter disc to act, an external turning tool on the tool is positioned on an outer cylindrical surface of the blank, then the power machine box A is controlled to start, the power machine box A drives the three-jaw chuck A to rotate, the three-jaw chuck A drives the blank to rotate around the axis of the blank, the external turning tool simultaneously feeds along the axis of the blank to realize the cutting machining of the outer cylindrical surface of the blank, and after the designed cutting amount is reached, the PLC control system controls the power machine box A to close and controls the external turning tool to reset simultaneously, so that the small shaft is machined on the blank finally;
s2, machining an end face A on the small shaft, controlling the action of a cutter disc through a PLC control system to enable an end face turning tool on the end face turning tool to be positioned on the end face of the small shaft, then controlling the power case A to start, driving the three-jaw chuck A to rotate by the power case A, feeding the end face turning tool along the radial direction of the small shaft, and obtaining the end face A after cutting, so that the end face A is finally cut and machined on the end face of the small shaft;
s3, controlling the table board of the hydraulic sliding table to move leftwards through the PLC control system, enabling the power machine case B and the three-jaw chuck B to move leftwards, and clamping and fixing the small shaft of the blank through the three-jaw chuck B after the small shaft enters the three-jaw chuck B; loosening the three-jaw chuck A, then controlling the table top of the hydraulic sliding table to reset, and driving the clamped blank to move rightwards by the hydraulic sliding table;
s4, a large shaft is machined on the blank, a PLC control system controls a cutter disc to act, so that an excircle turning tool on the large shaft is positioned on an unprocessed cylindrical surface of the blank, then a power case B is controlled to start, the power case B drives a three-jaw chuck B to rotate, the three-jaw chuck B drives the blank to rotate around the axis of the blank, the excircle turning tool feeds along the axis of the blank to realize the cutting machining of the outer cylindrical surface of the blank, and after the designed cutting amount is reached, the PLC control system controls the power case B to close and controls the excircle turning tool to reset at the same time, so that the large shaft is machined on the blank finally;
s5, machining an end face B on the large shaft, controlling the action of a cutter disc through a PLC control system to enable an end face lathe tool on the end face B to be positioned on the end face of the large shaft, then controlling the power machine box B to be started, driving the three-jaw chuck B to rotate by the power machine box B, feeding the end face lathe tool along the radial direction of the small shaft, and obtaining the end face B after cutting, so that the end face B of the large shaft is finally cut;
s6, a central hole is machined in the blank, a PLC control system controls a cutter head to act, so that a boring cutter on the cutter head is aligned to the center of the end face B, then the boring cutter is controlled to cut along the axial direction of the blank, the power case B is controlled to start at the same time, the central hole can be machined after the boring cutter penetrates through the end face A, and the power case B is closed after machining;
and S7, machining teeth on the large shaft, and controlling the cutter head to act through the PLC control system to enable the gear shaper cutter to form a plurality of teeth in the circumferential direction of the large shaft, so that the finished synchronous belt pulley is finally machined.
The invention has the following advantages: the invention improves the processing precision, parallelism and coaxiality of the synchronous belt pulley.
Drawings
FIG. 1 is a schematic view of a synchronous pulley;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic diagram of the operation of the three-jaw chuck A for clamping a blank;
FIG. 4 is a schematic diagram of the operation of the three-jaw chuck B for clamping a blank small shaft;
in the drawing, 1-a machine tool body, 2-a cutter head, 3-an excircle turning tool, 4-an end face turning tool, 5-a boring tool, 6-a slotting tool, 7-a power machine case A, 8-a three-jaw chuck A, 9-a hydraulic sliding table, 10-a power machine case B, 11-a three-jaw chuck B, 12-a blank, 13-a small shaft, 14-a large shaft, 15-teeth, 16-a central hole, 17-an end face A, 18-an end face B.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
as shown in fig. 2, an apparatus for high-precision machining of a synchronous pulley comprises a machine tool body 1, wherein a cutter head 2 is arranged in the machine tool body 1, an external turning tool 3, an end face turning tool 4, a boring tool 5 and a slotting cutter 6 are arranged on the cutter head 2, a power machine case A7 is arranged outside the left side wall of the machine tool body 1, an output shaft of the power machine case A7 extends into the machine tool body 1, a three-jaw chuck A8 is arranged on an extending end of the output shaft, a horizontally arranged hydraulic sliding table 9 is fixedly arranged in the machine tool body 1, a power machine case B10 is fixedly arranged on a table top of the hydraulic sliding table 9, a three-jaw chuck B11 is arranged on an output shaft of the power machine case B10, the three-jaw chuck B11 and the three-jaw chuck A8 are oppositely arranged, and the axis of the three-jaw chuck B11 and the axis of the three-jaw chuck A8 are on the same horizontal straight line.
The hydraulic sliding table 9 is arranged at the bottom of the machine tool body 1. The hydraulic power machine further comprises a PLC control system, and the PLC control system is electrically connected with the hydraulic sliding table 9, the cutter head 2, the power machine case A7 and the power machine case B10.
The method for machining the synchronous pulley with high precision by the equipment comprises the following steps:
s1, a small shaft is machined on a blank, a worker clamps a tool at one end of the blank 12 in a three-jaw chuck A8 as shown in a figure 3, a PLC control system controls a cutter head 2 to act to enable an external turning tool 3 on the cutter head to be positioned on an external cylindrical surface of the blank 12, then a power cabinet A7 is controlled to start, the power cabinet A7 drives the three-jaw chuck A8 to rotate, the three-jaw chuck A8 drives the blank 12 to rotate around the axis of the blank 12, the external turning tool 3 feeds along the axis of the blank 12 to achieve cutting machining of the external cylindrical surface of the blank 12, and when a designed cutting amount is reached, the PLC control system controls the power cabinet A7 to close and controls the external turning tool 3 to reset simultaneously, so that the small shaft 13 is machined on the blank 12 finally;
s2, machining an end face A on the small shaft, controlling the movement of the cutter head 2 through a PLC control system to enable an end face lathe tool 4 on the small shaft to be positioned on the end face of the small shaft 13, then controlling the power case A7 to be started, driving the three-jaw chuck A8 to rotate by the power case A7, simultaneously feeding the end face lathe tool 4 along the radial direction of the small shaft 13, and obtaining an end face A17 after cutting, thereby finally realizing the cutting machining of the end face of the small shaft 13;
s3, controlling the table top of the hydraulic sliding table 9 to move leftwards through a PLC control system, enabling the power machine case B10 and the three-jaw chuck B11 to move leftwards, and clamping and fixing the small shaft 13 of the blank through the three-jaw chuck B11 after the small shaft 13 enters the three-jaw chuck B11; the three-jaw chuck A8 is loosened, then the table top of the hydraulic sliding table 9 is controlled to reset, and the hydraulic sliding table 9 drives the clamped blank 12 to move rightwards as shown in figure 4;
s4, a large shaft is machined on the blank, the PLC control system controls the cutter head 2 to act, so that the outer circle turning tool 3 on the large shaft is positioned on the cylindrical surface of the blank 12, then the power control cabinet B10 is started, the power cabinet B10 drives the three-jaw chuck B11 to rotate, the three-jaw chuck B11 drives the blank 12 to rotate around the axis of the blank, meanwhile, the outer circle turning tool 3 feeds along the axis of the blank 12 to realize the cutting machining of the outer cylindrical surface of the blank 12, and when the designed cutting amount is reached, the PLC control system controls the power cabinet B10 to be closed and controls the outer circle turning tool 3 to reset at the same time, so that the large shaft 14 is machined on the blank 12 finally;
s5, machining an end face B on the large shaft, controlling the action of the cutter head 2 through a PLC control system to enable an end face turning tool 4 on the large shaft to be positioned on the end face of the large shaft 14, then controlling the power machine box B10 to be started, driving the three-jaw chuck B11 to rotate by the power machine box B10, feeding the end face turning tool 4 along the radial direction of the small shaft 13, and obtaining an end face B18 after cutting, so that the cutting machining of the end face of the large shaft 14 is finally realized;
s6, a central hole is machined in the blank, the PLC control system controls the cutter head 2 to act, the boring cutter 5 on the cutter head is aligned to the center of the end face B18, then the boring cutter 5 is controlled to axially cut along the blank 12, meanwhile, the power case B10 is started, when the boring cutter 5 penetrates through the end face A17, a central hole 16 can be machined, and the power case B10 is closed after machining;
and S7, machining teeth on the large shaft, controlling the cutter head 2 to act through the PLC control system, and forming a plurality of teeth 15 on the gear shaper cutter 6 in the circumferential direction of the large shaft, so that the finished synchronous belt pulley is finally machined.
Because the three-jaw chuck B11 and the three-jaw chuck A8 are oppositely arranged, and the axis of the three-jaw chuck B11 and the axis of the three-jaw chuck A8 are on the same horizontal straight line, in the step S3, the blank 12 is transferred to the three-jaw chuck B11 from the three-jaw chuck A8 in a translation manner, and the axis of the blank 12 is ensured to be always overlapped with the axis of the three-jaw chuck A8 and the axis of the three-jaw chuck B11, so that the parallelism of the processed end surface A17 and the processed end surface B18 is greatly improved, the coaxiality of the large shaft 14, the central hole 16 and the small shaft 13 is greatly improved, and the processing precision of the synchronous belt pulley is greatly improved.
In step S7, the teeth 15 and the large shaft 14 are processed on the three-jaw chuck B11, that is, only one positioning is needed to process, and compared with the conventional method in which a blank is fixed by a tool twice, accumulated errors are avoided, so that the coaxiality of the subsequently processed teeth 15 and the large shaft 14 is greatly improved, and the processing precision of the synchronous pulley is further greatly improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The method for machining the synchronous belt pulley at high precision adopts equipment for machining the synchronous belt pulley at high precision, the equipment comprises a machine tool body (1), a cutter head (2) is arranged in the machine tool body (1), and an excircle turning tool (3), an end face turning tool (4), a boring tool (5) and a slotting tool (6) are arranged on the cutter head (2), and is characterized in that: the hydraulic three-jaw chuck is characterized in that a power machine case A (7) is arranged outside the left side wall of the machine tool body (1), an output shaft of the power machine case A (7) extends into the machine tool body (1), a three-jaw chuck A (8) is installed on the extending end of the output shaft, a horizontally arranged hydraulic sliding table (9) is fixedly arranged in the machine tool body (1), a power machine case B (10) is fixedly arranged on the table top of the hydraulic sliding table (9), a three-jaw chuck B (11) is installed on the output shaft of the power machine case B (10), the three-jaw chuck B (11) and the three-jaw chuck A (8) are oppositely arranged, and the axis of the three-jaw chuck B (11) and the axis of the three-jaw chuck A (8) are on the same horizontal straight line; the hydraulic sliding table (9) is arranged at the bottom of the machine tool body (1); it still includes PLC control system, PLC control system is connected its characterized in that with hydraulic pressure slip table (9), blade disc (2), engine case A (7) and engine case B (10) electricity: the method comprises the following steps:
s1, a small shaft is machined on a blank, a worker clamps a tool at one end of the blank (12) in a three-jaw chuck A (8), a PLC control system controls a cutter head (2) to act, so that an outer circle turning tool (3) on the cutter head is positioned on an outer cylindrical surface of the blank (12), then a power case A (7) is controlled to start, the power case A (7) drives the three-jaw chuck A (8) to rotate, the three-jaw chuck A (8) drives the blank (12) to rotate around the axis of the blank, meanwhile, the outer circle turning tool (3) performs feed along the axis of the blank (12) to realize cutting machining on the outer cylindrical surface of the blank (12), and after the designed cutting amount is reached, the PLC control system controls the power case A (7) to close and controls the outer circle turning tool (3) to reset at the same time, so that the small shaft (13) is machined on the blank (12) finally;
s2, machining an end face A on the small shaft, controlling the cutter head (2) to act through a PLC control system, enabling an end face turning tool (4) on the cutter head to be positioned on the end face of the small shaft (13), then controlling the power machine case A (7) to be started, driving the three-jaw chuck A (8) to rotate through the power machine case A (7), simultaneously, feeding the end face turning tool (4) along the radial direction of the small shaft (13), and obtaining an end face A (17) after cutting, so that the end face of the small shaft (13) is finally cut;
s3, controlling the table top of the hydraulic sliding table (9) to move leftwards through the PLC control system, enabling the power machine case B (10) and the three-jaw chuck B (11) to move leftwards, and clamping and fixing the small shaft (13) through the three-jaw chuck B (11) after the small shaft (13) of the blank enters the three-jaw chuck B (11); loosening the three-jaw chuck A (8), then controlling the table top of the hydraulic sliding table (9) to reset, and driving the clamped blank (12) to move rightwards by the hydraulic sliding table (9);
s4, a large shaft is machined on the blank, a PLC control system controls a cutter head (2) to act, so that an external turning tool (3) on the large shaft is positioned on an unprocessed cylindrical surface of the blank (12), then a power cabinet B (10) is controlled to start, the power cabinet B (10) drives a three-jaw chuck B (11) to rotate, the three-jaw chuck B (11) drives the blank (12) to rotate around the axis of the three-jaw chuck B, the external turning tool (3) simultaneously feeds along the axis of the blank (12) to cut the external cylindrical surface of the blank (12), and when the designed cutting amount is reached, the PLC control system controls the power cabinet B (10) to close and controls the external turning tool (3) to reset at the same time, so that the large shaft (14) is finally machined on the blank (12);
s5, machining an end face B on the large shaft, controlling a cutter head (2) to act through a PLC control system, enabling an end face lathe tool (4) on the cutter head to be positioned on the end face of the large shaft (14), then controlling a power machine box B (10) to be started, driving a three-jaw chuck B (11) to rotate by the power machine box B (10), simultaneously, feeding the end face lathe tool (4) along the radial direction of a small shaft (13), and obtaining an end face B (18) after cutting, thereby finally realizing cutting machining of the end face of the large shaft (14);
s6, a central hole is machined in the blank, a PLC control system controls a cutter head (2) to act, a boring cutter (5) on the cutter head is aligned to the center of an end face B (18), then the boring cutter (5) is controlled to cut along the axial direction of the blank (12), a power machine box B (10) is controlled to start, when the boring cutter (5) penetrates through an end face A (17), a central hole (16) can be machined, and the power machine box B (10) is closed after machining;
and S7, machining teeth on the large shaft, controlling the cutter head (2) to act through the PLC control system, and forming a plurality of teeth (15) on the circumference of the large shaft by the gear shaper cutter (6), so that the finished synchronous belt pulley is machined finally.
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| CN202110153390.6A CN112846816B (en) | 2021-02-04 | 2021-02-04 | High-precision machining equipment for synchronous belt pulley and machining method thereof |
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| CN202110153390.6A CN112846816B (en) | 2021-02-04 | 2021-02-04 | High-precision machining equipment for synchronous belt pulley and machining method thereof |
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| CN112846816B true CN112846816B (en) | 2022-10-11 |
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| US7168144B1 (en) * | 2005-06-14 | 2007-01-30 | Haelle Frank J | Aluminum window frame extractor and method |
| CN101204734A (en) * | 2007-12-15 | 2008-06-25 | 江西江铃底盘股份有限公司 | Rear axle main reduction gear shell elastic spacer double side processing technology |
| CN101633092A (en) * | 2008-07-21 | 2010-01-27 | 鞠小平 | Method for processing range gear air cylinder of automobile parts |
| US20120102700A1 (en) * | 2010-10-31 | 2012-05-03 | Cheng Uei Precision Industry Co., Ltd. | Cutting and clamping device |
| CN102528567A (en) * | 2011-09-21 | 2012-07-04 | 杨东佐 | Numerical control equipment, machining process, numerical control production line and automatic article storage system |
| CN203765387U (en) * | 2014-03-28 | 2014-08-13 | 贵州金州机械有限公司 | Five-shaft linkage numerical-control multifunctional machine tool |
| CN204524785U (en) * | 2015-04-22 | 2015-08-05 | 马鞍山市恒久特材有限公司 | The lathe of a kind of self-centering end face milling, centering and cover turning |
| CN205702457U (en) * | 2016-03-21 | 2016-11-23 | 蒋木勇 | A kind of double main shaft double knife towers Digit Control Machine Tool |
| CN108406244A (en) * | 2018-05-10 | 2018-08-17 | 四川瑞迪佳源机械有限公司 | A kind of technique of the processing with ladder shaft gear |
| CN109333070A (en) * | 2018-12-06 | 2019-02-15 | 广东东运科技印刷设备有限公司 | A kind of stifled weldering all-in-one machine of axis |
| CN109968031A (en) * | 2019-05-16 | 2019-07-05 | 浦江升广科技有限责任公司 | A kind of multifunction machine |
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