CN105033362A - Worktable revolving mechanism having gap removing mechanism - Google Patents
Worktable revolving mechanism having gap removing mechanism Download PDFInfo
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- CN105033362A CN105033362A CN201510565349.4A CN201510565349A CN105033362A CN 105033362 A CN105033362 A CN 105033362A CN 201510565349 A CN201510565349 A CN 201510565349A CN 105033362 A CN105033362 A CN 105033362A
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- worm gear
- axle journal
- worm
- brake disc
- working platform
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Abstract
The invention belongs to the technical field of grinding equipment, and in particular, provides a worktable revolving mechanism having a gap removing mechanism. The worktable revolving mechanism comprises a worktable, is a double-lead worm gear pair transmission mechanism, and further comprises the gap removing mechanism, wherein the gap removing mechanism comprises a brake disc and a damping installation piece; the brake disc is arranged below a worm gear, and is fixedly connected with the worm gear; the upper and lower surfaces at one side of the brake disc are respectively provided with an upper brake piece and a lower brake piece; the upper brake piece is fixed on the damping installation piece; and a pretightening spring is arranged below the lower brake piece, and is fixed on the damping installation piece. The worktable revolving mechanism having the gap removing mechanism, provided by the invention, finishes the gap removal in the double-lead worm gear pair engagement process, greatly reduces the shock and the vibration generated in the engagement process, further improves the machining precision, reduces the production cost, and is simple in structure and convenient for operation.
Description
Technical field
The invention belongs to grinding equipment technical field, be specifically related to a kind of working platform swing mechanism with anti-backlash mechanism.
Background technology
Economic develop rapidly is to the progress of industry, especially new target has been formulated in the development of industrial equipment, numerically controlled tooth grinding machine is as the main equipment of gear finishing, its machining accuracy directly can have influence on the running accuracy of gear mechanism, so the behavior in service improving numerically controlled tooth grinding machine is for most important Gear Processing industry.
The most important part of working platform type numerically controlled tooth grinding machine, the running accuracy of workbench will directly affect machining accuracy and the working (machining) efficiency of workpiece.And, in the process of trade union college, realize workpiece and emery wheel fast centering just must have good indexing accuracy.
Traditional gear grinding machine working platform adopts gears meshing or single helical pitch worm gear pair, and indexing accuracy is not high, affects the machining accuracy of workpiece, and is difficult to adjust back lash, can cause certain shock and vibration, easily causes the flank of tooth to occur damaging; In addition, need to change Meshing Pair part, both can affect working (machining) efficiency also can increase processing cost.
Summary of the invention
The object of the invention is to overcome the defect that working platform swing mechanism indexing accuracy is not high, sideshake adjustment is difficult and Meshing Pair easily goes wrong of existing gear grinding machines, one is provided can effectively to improve working (machining) efficiency and machining accuracy, the gap that disappears in engagement process can be completed, greatly reduce the working platform swing mechanism with anti-backlash mechanism of the shock and vibration produced in engagement process.
For this reason, the invention provides a kind of working platform swing mechanism with anti-backlash mechanism, comprise workbench, described working platform swing mechanism is two helical pitch worm gear transmission mechanisms, comprise worm gear, double pitch worm and motor, described double pitch worm is connected with worm-drive, and worm gear is connected with workbench; Motor shaft and the gear wheel of described motor are in transmission connection, and gear wheel engages with pinion, and pinion and double pitch worm are in transmission connection.Workbench adopts two helical pitch worm gear transmission, improves running accuracy and the indexing accuracy of workbench, further increases working (machining) efficiency and the machining accuracy of gear grinding machines, reduce processing cost.
Also comprise anti-backlash mechanism, described anti-backlash mechanism comprises brake disc and damping installed part, described brake disc to be arranged on below worm gear and to be fixedly connected with worm gear, the upper and lower surface of brake disc side is respectively equipped with brake block and lower brake block, described upper brake block is fixed on damping installed part, the below of lower brake block is provided with preloading spring, and described preloading spring is fixed on damping installed part; Described workbench, worm gear and brake disc are coaxially arranged.Working platform swing mechanism is provided with anti-backlash mechanism, completes the gap that disappears in two helical pitch worm gear engagement process, greatly reduces the shock and vibration produced in engagement process, improve machining accuracy.
As preferably, described brake disc is fixedly connected with worm gear by screw; Described upper brake block is fixed by screws on damping installed part.
As structural improvement, the helical tooth that described double pitch worm comprises spindle nose, the first axle journal, the second axle journal and is arranged between the first axle journal and the second axle journal, described spindle nose is connected with pinion drive, described first axle journal is provided with the first spring bearing, described second axle journal is provided with the second spring bearing, and described first block bearing and the second spring bearing are separately fixed on clutch shaft bearing seat and the second bearing block.First spring bearing and the second spring bearing play a supportive role to two helical pitch worm gear, and are fixed in frame by clutch shaft bearing seat and the second bearing block.
As structural improvement, the side that described second spring bearing is relative with helical tooth is provided with the adjustable pad of thickness.The diameter of axle of double pitch worm differs, and along the second axle journal to the direction of spindle nose, is tapered, and in the engagement of different positions, helical pitch is different, by adjusting the thickness of pad to adjust different mates, to reach the object of adjustment sideshake.Worm screw has the helical tooth of sufficient length, when occurring that wearing and tearing wait the imagination, can change engagement position to realize improving the object of machining accuracy by the play of worm screw.
Beneficial effect of the present invention: this working platform swing mechanism with anti-backlash mechanism provided by the invention, adopt two helical pitch worm gear transmission mechanism, improve running accuracy and the indexing accuracy of workbench, thus improve working (machining) efficiency and the machining accuracy of gear-hobbing machine, be provided with anti-backlash mechanism, complete the gap that disappears in two helical pitch worm gear engagement process, greatly reduce the shock and vibration produced in engagement process, further increase machining accuracy.Reduce production cost, structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two helical pitch worm gear transmission mechanisms provided in the present embodiment.
Fig. 2 is the structural representation of the anti-backlash mechanism provided in the present embodiment.
Description of reference numerals: 1, motor; 2, motor shaft; 3, gear wheel; 4, pinion; 5, spindle nose; 6, the first spring bearing; 7, the second axle journal; 8, pad; 9, the second spring bearing; 10, worm gear; 11, workbench; 12, the first axle journal; 13, brake disc; 14, upper brake block; 15, lower brake block; 16, preloading spring; 17, damping installed part; 18, screw.
Accompanying drawing explanation
Fig. 1 is the structural representation of working platform swing mechanism in the present embodiment.
Fig. 2 is the structural representation of numerically controlled tooth grinding machine in the present embodiment.
Description of reference numerals: 1, motor; 2, motor shaft; 3, gear wheel; 4, pinion; 5, spindle nose; 6, the first spring bearing; 7, the second axle journal; 8, pad; 9, the second spring bearing; 10, worm gear; 11, workbench; 12, the first axle journal; 13, post; 14, large column; 15, lathe bed.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
Embodiment:
The invention provides a kind of working platform swing mechanism with anti-backlash mechanism, as shown in Figure 1, comprise workbench, described working platform swing mechanism is two helical pitch worm gear transmission mechanisms, comprise worm gear 10, double pitch worm and motor 1, described double pitch worm and worm gear 10 are in transmission connection, and worm gear 10 is connected with workbench 11; Motor shaft 2 and the gear wheel 3 of described motor 1 are in transmission connection, and gear wheel 3 engages with pinion 4, and pinion 4 is connected with worm-drive.Workbench 11 adopts two helical pitch worm gear transmission, improves running accuracy and the indexing accuracy of workbench 11, further increases working (machining) efficiency and the machining accuracy of gear grinding machines, reduce processing cost.
As shown in Figure 2, also comprise anti-backlash mechanism, described anti-backlash mechanism comprises brake disc 13 and damping installed part 17, described brake disc 13 to be arranged on below worm gear 10 and to be fixedly connected with worm gear 10, the upper and lower surface of brake disc 13 side is respectively equipped with brake block 14 and lower brake block 15, described upper brake block 14 is fixed on damping installed part, and the below of lower brake block is provided with preloading spring, and described preloading spring is fixed on damping installed part 17; Described workbench 11, worm gear 10 are coaxially arranged with brake disc 13.Working platform swing mechanism is provided with anti-backlash mechanism, completes the gap that disappears in two helical pitch worm gear engagement process, greatly reduces the shock and vibration produced in engagement process, improve machining accuracy.Described brake disc 13 is fixedly connected with worm gear 10 by screw 18; Described upper brake block 14 is fixed on damping installed part 17 by screw 18.
The pre-add elastic force being fixed on preloading spring 16 generation on damping installed part 17 is applied to upper and lower brake block, upper and lower brake block friction brake dish 13, upper and lower brake block produces damping to brake disc 13, because brake disc 13 is fixedly connected with worm gear 10, thus the gap that two helical pitch worm gear produces in engagement process can be eliminated, greatly reduce the shock and vibration produced in engagement process, further increase machining accuracy.
As shown in Figure 1, described double pitch worm comprises spindle nose 5, first axle journal 12, second axle journal 7 and is arranged on the helical tooth between the first axle journal 12 and the second axle journal 7, described spindle nose 5 is in transmission connection with pinion 4, described first axle journal 12 is provided with the first spring bearing 6, described second axle journal 12 is provided with the second spring bearing 9, and described first block bearing 6 and the second spring bearing 9 are separately fixed on clutch shaft bearing seat and the second bearing block.First spring bearing 6 and the second spring bearing 9 play a supportive role to two helical pitch worm gear, and are fixed in frame by clutch shaft bearing seat and the second bearing block.
For the ease of adjustment back lash, avoid the flank of tooth to occur damaging, the side that described second spring bearing 9 is relative with helical tooth is provided with the adjustable pad of thickness 8.The diameter of axle of double pitch worm differs, and along the second axle journal 7 to the direction of spindle nose 5, is tapered, and in the engagement of different positions, helical pitch is different, by adjusting the thickness of pad 8 to adjust different mates, to reach the object of adjustment sideshake.
Easily wear phenomenon is there is in worm and worm wheel 10 through long engagement, usually need to change worm screw, lose time, in order to reduce the number of times changing worm screw, worm screw has the helical tooth of sufficient length, when occurring that wearing and tearing wait the imagination, engagement position can be changed to realize improving the object of machining accuracy by the play of worm screw.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Platform is between large column and post, also comprise the working platform swing mechanism be arranged on below workbench, described working platform swing mechanism is two helical pitch worm gear transmission mechanisms, comprises worm gear, double pitch worm and motor, described double pitch worm is connected with worm-drive, and worm gear is connected with workbench; Motor shaft and the gear wheel of described motor are in transmission connection, and gear wheel engages with pinion, and pinion and double pitch worm are in transmission connection.Workbench adopts two helical pitch worm gear transmission, improves running accuracy and the indexing accuracy of workbench, further increases working (machining) efficiency and the machining accuracy of gear grinding machines, reduce processing cost.
As structural improvement, the helical tooth that described double pitch worm comprises spindle nose, the first axle journal, the second axle journal and is arranged between the first axle journal and the second axle journal, described spindle nose is connected with pinion drive, described first axle journal is provided with the first spring bearing, described second axle journal is provided with the second spring bearing, and described first block bearing and the second spring bearing are separately fixed on clutch shaft bearing seat and the second bearing block.First spring bearing and the second spring bearing play a supportive role to two helical pitch worm gear, and are fixed in frame by clutch shaft bearing seat and the second bearing block.
As structural improvement, the side that described second spring bearing is relative with helical tooth is provided with the adjustable pad of thickness.The diameter of axle of double pitch worm differs, and along the second axle journal to the direction of spindle nose, is tapered, and in the engagement of different positions, helical pitch is different, by adjusting the thickness of pad to adjust different mates, to reach the object of adjustment sideshake.Worm screw has the helical tooth of sufficient length, when occurring that wearing and tearing wait the imagination, can change engagement position to realize improving the object of machining accuracy by the play of worm screw.
Beneficial effect of the present invention: the numerically controlled tooth grinding machine of this employing modified working platform swing mechanism provided by the invention, working platform swing mechanism adopts two helical pitch worm gear transmission mechanism, improve running accuracy and the indexing accuracy of workbench, thus improve working (machining) efficiency and the machining accuracy of gear-hobbing machine, reduce production cost, structure is simple, easy to operate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
Present embodiments provide a kind of numerically controlled tooth grinding machine adopting modified working platform swing mechanism, as illustrated in fig. 1 and 2, comprise lathe bed 15, large column 14, post 13 and workbench 11, described large column 14, post 13 and workbench 11 to be positioned on lathe bed 15 and to be oppositely arranged, workbench 11 is between large column 14 and post 13, also comprise the working platform swing mechanism be arranged on below workbench 11, described working platform swing mechanism is two helical pitch worm gear transmission mechanisms, comprise worm gear 10, double pitch worm and motor 1, described double pitch worm and worm gear 10 are in transmission connection, worm gear 10 is connected with workbench 11, motor shaft 2 and the gear wheel 3 of described motor 1 are in transmission connection, and gear wheel 3 engages with pinion 4, and pinion 4 is connected with worm-drive.Workbench 11 adopts two helical pitch worm gear transmission, improves running accuracy and the indexing accuracy of workbench 11, further increases working (machining) efficiency and the machining accuracy of gear grinding machines, reduce processing cost.
Described double pitch worm comprises spindle nose 5, first axle journal 12, second axle journal 7 and is arranged on the helical tooth between the first axle journal 12 and the second axle journal 7, described spindle nose 5 is in transmission connection with pinion 4, described first axle journal 12 is provided with the first spring bearing 6, described second axle journal 12 is provided with the second spring bearing 9, and described first block bearing 6 and the second spring bearing 9 are separately fixed on clutch shaft bearing seat and the second bearing block.First spring bearing 6 and the second spring bearing 9 play a supportive role to two helical pitch worm gear, and are fixed in frame by clutch shaft bearing seat and the second bearing block.
For the ease of adjustment back lash, avoid the flank of tooth to occur damaging, the side that described second spring bearing 9 is relative with helical tooth is provided with the adjustable pad of thickness 8.The diameter of axle of double pitch worm differs, and along the second axle journal 7 to the direction of spindle nose 5, is tapered, and in the engagement of different positions, helical pitch is different, by adjusting the thickness of pad 8 to adjust different mates, to reach the object of adjustment sideshake.
Easily wear phenomenon is there is in worm and worm wheel 10 through long engagement, usually need to change worm screw, lose time, in order to reduce the number of times changing worm screw, worm screw has the helical tooth of sufficient length, when occurring that wearing and tearing wait the imagination, engagement position can be changed to realize improving the object of machining accuracy by the play of worm screw.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (4)
1. one kind has the working platform swing mechanism of anti-backlash mechanism, comprise workbench (11), it is characterized in that: described working platform swing mechanism is two helical pitch worm gear transmission mechanism, comprise worm gear (10), double pitch worm and motor (1), described double pitch worm and worm gear (10) are in transmission connection, and worm gear (10) is connected with workbench (11); Motor shaft (2) and the gear wheel (3) of described motor (1) are in transmission connection, and gear wheel (3) engages with pinion (4), and pinion (4) and double pitch worm are in transmission connection;
Also comprise anti-backlash mechanism, described anti-backlash mechanism comprises brake disc (13) and damping installed part (17), described brake disc (13) is arranged on worm gear (10) below and is fixedly connected with worm gear (10), the upper and lower surface of brake disc (13) side is respectively equipped with brake block (14) and lower brake block (15), described upper brake block (14) is fixed on damping installed part (17), the below of lower brake block (15) is provided with preloading spring (16), and described preloading spring (16) is fixed on damping installed part (17);
Described workbench (11), worm gear (10) and brake disc (13) are coaxially arranged.
2. a kind of working platform swing mechanism with anti-backlash mechanism as claimed in claim 1, is characterized in that: described brake disc (13) is fixedly connected with worm gear (10) by screw (18); Described upper brake block (14) is fixed on damping installed part (17) by screw (18).
3. a kind of working platform swing mechanism with anti-backlash mechanism as claimed in claim 1, it is characterized in that: described double pitch worm comprises spindle nose (5), first axle journal (12), second axle journal (7) and the helical tooth be arranged between the first axle journal (12) and the second axle journal (7), described spindle nose (5) and pinion (4) are in transmission connection, described first axle journal (12) is provided with the first spring bearing (6), described second axle journal (7) is provided with the second spring bearing (9), described first block bearing (6) and the second spring bearing (9) are separately fixed on clutch shaft bearing seat and the second bearing block.
4. a kind of working platform swing mechanism with anti-backlash mechanism as claimed in claim 1, is characterized in that: described second spring bearing (6) side relative with helical tooth is provided with the adjustable pad of thickness (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565349.4A CN105033362A (en) | 2015-09-08 | 2015-09-08 | Worktable revolving mechanism having gap removing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565349.4A CN105033362A (en) | 2015-09-08 | 2015-09-08 | Worktable revolving mechanism having gap removing mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN105033362A true CN105033362A (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510565349.4A Pending CN105033362A (en) | 2015-09-08 | 2015-09-08 | Worktable revolving mechanism having gap removing mechanism |
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| Country | Link |
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| CN (1) | CN105033362A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796343A (en) * | 2017-11-17 | 2018-03-13 | 杭州航验环境技术有限公司 | A kind of high-precision positioner and high accuracy positioning householder method |
-
2015
- 2015-09-08 CN CN201510565349.4A patent/CN105033362A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796343A (en) * | 2017-11-17 | 2018-03-13 | 杭州航验环境技术有限公司 | A kind of high-precision positioner and high accuracy positioning householder method |
| CN107796343B (en) * | 2017-11-17 | 2024-05-10 | 杭州航验环境技术有限公司 | High-precision positioning device and high-precision positioning auxiliary method |
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Application publication date: 20151111 |