Indexing device for a straight indexing table专利检索-失速控制风能专利检索查询-专利查询网

Indexing device for a straight indexing table

阅读：853发布：2022-02-20

专利汇可以提供Indexing device for a straight indexing table专利检索，专利查询，专利分析的服务。并且An indexing, or positioning, device for a table guided for movement on a base. The positioning device comprises a pair of indexing discs connected via a totalizing transmission with the table to be positioned. Each indexing disc is driven through a differential transmission from a pair of motors, each of which has a brake to lock the motor when it is deenergized. Presettable counters control the motors and a pulse generating device associated with each disc feeds countdown pulses to the counters to stop the disc when a position thereof corresponding to the preset value in the counter is reached. Lost motion in the drive from the positioning device to the table is compensated for by a tensioning drive connected to the table and biasing the table in feed direction during indexing thereof and in the opposite direction at the end of a feed movement thereof.，下面是Indexing device for a straight indexing table专利的具体信息内容。

权利要求

1. A positioning device for a table slidable on a base; first means for causing coarse stroke increments of feed of said table, second means for causing fine stroke increments of feed of said table, control means for controlling the operation of said first and second means, and a drive train connecting said first and second means with said table, each of said first and second means including a respective indexing disc and a respective pawl means associated therewith to predetermine indexed positions of the said first and second means, and said drive train including a totalizing transmission having an input member connected to each of said first and second means and an output member connected to said table.

2. A positioning device according to claim 1 in which said drive train also includes a rack on said table parallel to the direction of feed of the table, a positioning pinion meshing with said rack, a worm wheel connected to said positioning pinion, and a worm meshing with said worm wheel and connected to the said output member of said totalizing transmission.

3. A positioning device according to claim 2 which includes a tensioning drive connected to said table, and means for actuating the tensioning drive in one direction during feed of said table to urge the table in feed direction and in the other direction at the end of a feed movement of the table to take up any lost motion in the said drive train from said first and second means to said table.

4. A positioning device according to claim 3 in which said tensioning drive comprises a tensioning pinion meshing with said rack, and a reversible motor connected to said tensioning pinion.

5. A positioning device according to claim 1 which includes a high speed and a low speed drive motor for each disc, a differential transmission for each disc having an output member connected to the respective disc And an input member connected to each of the drive motors for the respective disc, each motor having a brake effective for locking the respective motor when the motor is deenergized.

6. A positioning device according to claim 5 which includes pulse developing means associated with each disc and operable to develop pulses as the respective disc rotates, and presettable counter means connected in controlling relation to said motors, said pulse developing means being connected in controlling relation to said counter means to count down values preset therein as the pertaining disc rotates.

7. A positioning device according to claim 1 in which each disc has a plurality of circumferentially distributed notches on the periphery thereof, and said pawl means engages the notched periphery of the respective disc.

8. A positioning device according to claim 7 in which the said notches in each disc are separated by narrow pointed teeth on the disc, and each pawl means comprising a roller adapted to engage the flanks of the teeth at opposite sides of a notch in each indexed position of the disc.

9. A positioning device according to claim 3 which includes compensating means adapted to shift said worm in the axial direction in response to feed movements of said table to effect correction for errors in the drive train between said first and second means and said table.

10. A positioning device according to claim 9 in which said compensating means comprises a bearing supporting said worm, an eccentric connected to the bearing and actuatable to shift the bearing and worm in the axial direction of the worm, a templet on the table, and a lever system having a roller following the templet and connected to actuate said eccentric in conformity with the contour of said templet as said table moves in feed direction.

11. A positioning device according to claim 8 which includes means for disengaging each pawl means from the respective disc during rotation of the disc.

说明书全文

相关专利内容

标题	发布/更新时间	阅读量
一种低噪声风力机叶片设计方法及低噪声风力机叶片	2020-05-12	792
一种基于窗口决策的高容错性的天钩回收方法	2020-05-08	563
一种带有仿生锯齿尾缘结构的跨音速压气机平面叶栅	2020-05-11	674
一种新型仿生水下双足游走机器人及其运动方法	2020-05-11	405
一种用于开颅手术的机械臂末端稳定装置	2020-05-11	489
一种提升机防坠落装置	2020-05-13	55
井下快速定向瞄准的地面自动控制装置及方法	2020-05-13	693
一种自升式海洋平台升降防滑保护检测系统及方法	2020-05-14	434
一种电动汽车风力发电系统	2020-05-14	507
车辆驱动装置	2020-05-08	951

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。

申请试用

失速控制热门专利

热门分类

Indexing device for a straight indexing table

该功能需要专业版企业版VIP权限，您可以：