CN204868239U - Automatic tight device that rises of worm gear maching - Google Patents
Automatic tight device that rises of worm gear maching Download PDFInfo
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- CN204868239U CN204868239U CN201520498294.5U CN201520498294U CN204868239U CN 204868239 U CN204868239 U CN 204868239U CN 201520498294 U CN201520498294 U CN 201520498294U CN 204868239 U CN204868239 U CN 204868239U
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- pneumatic cylinder
- worm gear
- rises
- hydraulic cylinder
- worm wheel
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Abstract
The utility model discloses an automatic tight device that rises of worm gear maching, the device is established on machine tool table, is equipped with pneumatic cylinder and pneumatic cylinder pull rod on the lathe, automatically, the tight device that rises includes base, clamp plate, cover and dabber rise, the base passes through the tool to lock member to be fixed on machine tool table, the dabber pass with base interference fit rise the cover and with the cover that rises keep certain clearance, bottom through screw and pneumatic cylinder pull rod is connected, upward the pot head have the clamp plate, while pneumatic cylinder pull rod passes through the screw and is connected with the workstation pneumatic cylinder. The application provides a device through the lathe pneumatic cylinder to drop -down mobile core axle and then extrusion set realization fixed to the worm wheel that rise, greatly reduced to the clearance requirement between worm wheel aperture and the dabber, the effectual diameter runout who reduces the worm wheel makes electronic power assisted steering device more steady in the during operation operation, and then improves the performance of electronic power assisted steering device, processed worm wheel finished product diameter runout can realize the within range at 0.02 -0.04mm.
Description
Technical field
The utility model relates to a kind of device of spiral case making automatic tension.
Background technology
The mode that in prior art, spiral case making adopts mandrel to compress worm gear is usually processed, the aperture of this mode to the diameter dimension of mandrel and worm gear requires high, during the flank of tooth that gap between mandrel and worm gear aperture is directly reflected in worm gear is beated, and operator's labour intensity is bigger than normal, worm gear clamping is comparatively large and then increase the cost of spiral case making to processing rhythm.
Utility model content
In order to overcome the defect existed in prior art, this application provides a kind of process and stablizing, the worm gear finished product circular runout processed can realize the spiral case making automatic tension device within the scope of 0.02-0.04mm.Concrete technical scheme is as follows.
The application provides a kind of spiral case making automatic tension device, described device is located on platen, lathe is provided with hydraulic cylinder and hydraulic cylinder accelerator rod, described automatic tension device comprises base, pressing plate, ringfeder and mandrel, described base is fixed on platen by lock members, mandrel through with the ringfeder of base interference fit and keep certain interval with ringfeder, bottom is connected with hydraulic cylinder accelerator rod by screw thread, upper end is overlapped pressing plate.
Preferably, described lock members, for be screwed into workbench groove by M6 screw, makes the axially-movable of its firm banking.
Preferably, hydraulic cylinder accelerator rod is connected with the hydraulic cylinder on workbench by screw thread.
The device that the application provides pulls down moving mandrel by machine tool hydraulic cylinder and then extruding ringfeder realizes fixing worm gear.This device utilizes ringfeder to instead of mandrel of the prior art, the device of prior art add man-hour worm gear and mandrel between be matched in clearance, and this device add man-hour worm gear and mandrel between be interference fits, greatly reduce the clearance requirement between worm gear aperture and mandrel, effectively reduce the circular runout of worm gear, electric power-assisted steering apparatus is operationally operated more steady, and then improve the performance of electric power-assisted steering apparatus.
Beneficial effect: spiral case making device of the prior art is owing to being that the worm gear circular runout that processes of matched in clearance is at more than 0.05mm, be difficult to reach designing requirement, and the device that the application provides counteracts interior interporal lacuna by Tensioning structure, greatly improve the stability of process, the worm gear finished product circular runout processed can realize within the scope of 0.02-0.04mm.
Accompanying drawing explanation
Fig. 1 spiral case making automatic tension device structural representation;
In figure: 1-pressing plate, 2-mandrel, 3-ringfeder, 4-base, 5-hydraulic cylinder accelerator rod, 6-M6 screw, 7-platen.
Detailed description of the invention
Below in conjunction with accompanying drawing, explanation is further explained to the application.
As shown in Figure 1, the application provides a kind of device of spiral case making automatic tension, this device is located on platen 7, the hydraulic cylinder accelerator rod 5 lathe being also provided with hydraulic cylinder and being connected with hydraulic cylinder, described spiral case making automatic tension device comprises base 4, pressing plate 1, ringfeder 3,, mandrel 2 and M6 screw 6, described base 4 is fixed on platen 7 by lock members M6 screw, mandrel 2 is fixed on base 4 center, and the lower end of described mandrel 2 is overlapped ringfeder 3, bottom is connected with hydraulic cylinder accelerator rod 5 by screw thread, upper end is overlapped pressing plate 1.
In actual application, first pressing plate 1 is taken off and blank of worm gear is put into ringfeder 3, then pressing plate 1 is inserted in mandrel 2.Start lathe, machine tool hydraulic cylinder pulls pull bar 5 downwards, and pull bar 5 and mandrel 2 are threaded connection, and pull bar 5 is with moving mandrel 2 to move downward and is made ringfeder 3 tensioner worm gear endoporus.Worm gear carries out processing with machine tool while of platen rotation to worm gear and mills out worm gear finished product.
This device pulls down moving mandrel 2 by machine tool hydraulic cylinder and then extruding ringfeder 3 realizes fixing worm gear, this device utilizes ringfeder to instead of mandrel of the prior art, existing device add man-hour worm gear and mandrel between be matched in clearance, this device add man-hour worm gear and mandrel between be interference fits, greatly reduce the requirement to the gap between worm gear aperture and mandrel, effectively reduce the circular runout of worm gear, electric power-assisted steering apparatus is operationally operated more steady, and then improve the performance of electric power-assisted steering apparatus; This device counteracts interior interporal lacuna by Tensioning structure, greatly improves the stability of process, and the worm gear finished product circular runout processed can realize within the scope of 0.02-0.04mm.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (3)
1. a spiral case making automatic tension device, described automatic tension device is located on platen, lathe is provided with hydraulic cylinder and hydraulic cylinder accelerator rod, it is characterized in that, described automatic tension device comprises base, pressing plate, ringfeder and mandrel, described base is fixed on platen by lock members, mandrel through with the ringfeder of base interference fit and keep certain interval with ringfeder, bottom is connected with hydraulic cylinder accelerator rod by screw thread, upper end is overlapped pressing plate.
2. a kind of spiral case making automatic tension device according to claim 1, is characterized in that, described lock members, for be screwed into workbench groove by M6 screw, makes the axially-movable of its firm banking.
3. a kind of spiral case making automatic tension device according to claim 1, it is characterized in that, described hydraulic cylinder accelerator rod is connected with workbench hydraulic cylinder by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498294.5U CN204868239U (en) | 2015-07-09 | 2015-07-09 | Automatic tight device that rises of worm gear maching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498294.5U CN204868239U (en) | 2015-07-09 | 2015-07-09 | Automatic tight device that rises of worm gear maching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204868239U true CN204868239U (en) | 2015-12-16 |
Family
ID=54812662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520498294.5U Active CN204868239U (en) | 2015-07-09 | 2015-07-09 | Automatic tight device that rises of worm gear maching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204868239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935891A (en) * | 2015-12-19 | 2016-09-14 | 綦江祥和机械有限公司 | Clamp for grinding gear |
-
2015
- 2015-07-09 CN CN201520498294.5U patent/CN204868239U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935891A (en) * | 2015-12-19 | 2016-09-14 | 綦江祥和机械有限公司 | Clamp for grinding gear |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |