GB732056A - Improvements in or relating to automatic grinding wheel adjustment for rotary table flat-grinding machines - Google Patents
Improvements in or relating to automatic grinding wheel adjustment for rotary table flat-grinding machinesInfo
- Publication number
- GB732056A GB732056A GB14158/52A GB1415852A GB732056A GB 732056 A GB732056 A GB 732056A GB 14158/52 A GB14158/52 A GB 14158/52A GB 1415852 A GB1415852 A GB 1415852A GB 732056 A GB732056 A GB 732056A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grinding
- relay
- contacts
- line
- wheel
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
732,056. Grinding. KRUG, C. June 4, 1952 [Sept. 28, 1951], No. 14158/52. Class 60. An automatic grinding-wheel adjusting means for rotary table flat grinding machines is characterized in that the rotary table is provided with means to make and break an electric circuit between a grinding-wheel adjusting mechanism and a feeler-gauge actuated by oversize workpieces, so that displacement of said feeler-gauge can only effect operation of the grinding wheel adjusting mechanism when said rotary table is in a position to close said circuit. A rotatable work-table AT carries workpieces W beneath a grinding-wheel S. Spaced contacts K on the table AT co-operate with a brush 8 joined to line 101, the contacts being interconnected and joined to line 102. The circuit from line Q to line R of the mains is thus closed, when brush 8 registers with a contact K, to energize the coil of relay RW. If the feelergauge T is lifted by a workpiece W which is oversize, due to wear of the grinding-wheel, an electric current is transmitted from a current source la by way of line 1, contacts in relay RW and line 2 (thus energizing coil of relay RT2) to contacts in closed relay RT1. Current is then transmitted through line 3 to contacts in closed relay RT2 and via line 4 to operate feeding relay FR thereby energizing through lines 5, 6 an electromagnet M actuating the grinding-wheel adjusting mechanism. When brush 8 leaves contact K, relay RW returns to its non-energized position so that current will flow through line 10 to energize coil of relay RT1 and thereby open contacts of relay RT1. Coil of relay RT2 is de-energized and contacts of relay RT2 opened whereby electromagnet M is cut out of circuit and the grinding-wheel adjusting mechanism rendered inoperative. The distance between contacts K is somewhat greater than that between the gauge T and the grinding wheel S. The grinding-wheel adjusting mechanism B comprises a rotary-vane type hydraulic motor controlled by a valve operated by the electromagnet M; the rotational displacement of the vane is converted into linear motion, e.g. by worm and screw spindle drive. A switching mechanism may be provided to break the circuit between the gauge and electromagnet M despite the position of the brush 8 and contacts K.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE732056X | 1951-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB732056A true GB732056A (en) | 1955-06-15 |
Family
ID=6638936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14158/52A Expired GB732056A (en) | 1951-09-28 | 1952-06-04 | Improvements in or relating to automatic grinding wheel adjustment for rotary table flat-grinding machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB732056A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855736A (en) * | 1972-01-03 | 1974-12-24 | Trw Inc | Gaging method and apparatus |
| CN116214291A (en) * | 2023-03-20 | 2023-06-06 | 江苏飞象数控设备有限公司 | Centerless grinding machine and grinding assembly thereof |
-
1952
- 1952-06-04 GB GB14158/52A patent/GB732056A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855736A (en) * | 1972-01-03 | 1974-12-24 | Trw Inc | Gaging method and apparatus |
| CN116214291A (en) * | 2023-03-20 | 2023-06-06 | 江苏飞象数控设备有限公司 | Centerless grinding machine and grinding assembly thereof |
| CN116214291B (en) * | 2023-03-20 | 2023-09-15 | 江苏飞象数控设备有限公司 | Centerless grinding machine and grinding assembly thereof |
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