CN105033667A - Numerically-controlled gear hobbing machine with improved worktable swing mechanism - Google Patents
Numerically-controlled gear hobbing machine with improved worktable swing mechanism Download PDFInfo
- Publication number
- CN105033667A CN105033667A CN201510565429.XA CN201510565429A CN105033667A CN 105033667 A CN105033667 A CN 105033667A CN 201510565429 A CN201510565429 A CN 201510565429A CN 105033667 A CN105033667 A CN 105033667A
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- CN
- China
- Prior art keywords
- swing mechanism
- gear
- worm
- axle journal
- workbench
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention belongs to the technical field of grinding equipment and particularly provides a numerically-controlled gear hobbing machine with an improved worktable swing mechanism. The numerically-controlled gear hobbing machine comprises a lathe bed, a large stand column, a small stand column and a worktable and further comprises the worktable swing mechanism arranged below the worktable. The worktable swing mechanism is a double-lead worm gear pair transmission mechanism and comprises a worm gear, a double-lead worm and a motor. The double-lead worm is in transmission connection with the worm gear which is connected with the worktable. The motor shaft of the motor is in transmission connection with a large gear which is meshed with a small gear. The smell gear is in transmission connection with the worm. According to the numerically-controlled gear hobbing machine with the improved worktable swing mechanism, the operation precision and the indexing precision of the worktable are improved, and therefore the machining efficiency and the machining precision of the gear hobbing machine are improved; the production cost is reduced; and the structure is simple, and operation is convenient.
Description
Technical field
The invention belongs to grinding equipment technical field, be specifically related to a kind of numerically controlled tooth grinding machine adopting modified working platform swing 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 a very important kind equipment in equipment manufacture industry, it can improve the machining accuracy of gear, 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 not only indexing accuracy is not high, and is difficult to adjust back lash, easily causes the flank of tooth to occur damaging, affects machining accuracy; 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, and the numerically controlled tooth grinding machine of the employing modified working platform swing mechanism that can cut down finished cost.
For this reason, the invention provides a kind of numerically controlled tooth grinding machine adopting modified working platform swing mechanism, comprise lathe bed, large column, post and workbench, described large column, post and workbench to be positioned on lathe bed and to be oppositely arranged, workbench 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, 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.
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.
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.
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 (3)
1. one kind adopts the numerically controlled tooth grinding machine of modified working platform swing mechanism, comprise lathe bed (15), large column (14), post (13) and workbench (11), described large column (14), post (13) and workbench (11) are positioned at lathe bed (15) and go up and be oppositely arranged, workbench (11) is positioned between large column (14) and post (13), it is characterized in that: also comprise the working platform swing mechanism being arranged on workbench (11) below, 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) and double pitch worm are in transmission connection.
2. a kind of numerically controlled tooth grinding machine adopting modified working platform swing 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.
3. a kind of numerically controlled tooth grinding machine adopting modified working platform swing 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 |
|---|---|---|---|
| CN201510565429.XA CN105033667A (en) | 2015-09-08 | 2015-09-08 | Numerically-controlled gear hobbing machine with improved worktable swing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565429.XA CN105033667A (en) | 2015-09-08 | 2015-09-08 | Numerically-controlled gear hobbing machine with improved worktable swing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105033667A true CN105033667A (en) | 2015-11-11 |
Family
ID=54440942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510565429.XA Pending CN105033667A (en) | 2015-09-08 | 2015-09-08 | Numerically-controlled gear hobbing machine with improved worktable swing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105033667A (en) |
-
2015
- 2015-09-08 CN CN201510565429.XA patent/CN105033667A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |