GB506971A - Improved drill testing and/or drilling machine - Google Patents
Improved drill testing and/or drilling machineInfo
- Publication number
- GB506971A GB506971A GB2007738A GB2007738A GB506971A GB 506971 A GB506971 A GB 506971A GB 2007738 A GB2007738 A GB 2007738A GB 2007738 A GB2007738 A GB 2007738A GB 506971 A GB506971 A GB 506971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drill
- sleeves
- cylinders
- springs
- rods
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
506,971. Drilling and drill-testing machines. KENYON, A. S. G. July 7, 1938, Nos. 20077 and 35645. [Class 83 (iii)] In a drilling or drill-testing machine the drill is rotatably mounted in a fixed head and the work table is fed resiliently towards the drill, clamping means being provided for preventing undue movement of the table when the drill breaks through the work. The machine oomprises a fixed head I supported by four columns 2 and carrying a spindle 15 for the drill 17 which is rotated by gearing 16 and belt 14, from an external source of power. The work table 6 has brackets at the comers carrying ball-bearing rollers 10 which engage guide surfaces 11 on the columns and is fed upwards by two or more sets of pulley blocks and cables 3, 5 and adjustable weights 4. A damping force is applied to the table by one or more dashpots 18 attached to the columns 2 having piston rods 19 connected to brackets on the table, the damping force being arranged so that it does not impede the feed but comes into action when the drill breaks through. The rate of feed before cutting commences may be adjusted by connecting opposite ends of the dashpot by pipes 20 and connecting the several systems in parallel by pipes 20a, an adjustable valve 21 being placed in one of the pipes 20 to vary the speed at which the liquid may pass from one end to the other of the dashpots. The system is kept full of liquid by a reservoir 20b. The work table is returned by means of a screwed sleeve 25 connected thereto by a thrust bearing and splined to a shaft 25a driven by bevel and belt gearing 26, 28 from the external source of power, a nut segment 22 for engaging the sleeve being mounted on a fixed support 23 and being movable into and out of contact with the sleeve by a hand-operated screw 31. The movement of the table is also controlled during drilling by rods 33 pinned at 36, Fig. 2, to the under side of the table and carrying at their lower screwed ends adjustable sleeves 40 on which are freely slidable sleeves 39 screwed into cylinders 32a slidable on the rods. Springs 37 are compressed between flanges 38 on the cylinders and the ends of the sleeves 39. The cylinders are supported by the springs 37 resting on the upper ends of the sleeves 40 and the latter are adjusted on the rods 33 so that the upper ends of the cylinders will come into contact with the lower side of the fixed support 23 when the drill commences to break through the work whereby the springs 37 are further compressed by the sleeves 40 to keep the load on the table constant. When the drill has broken through, adjustable rings or lock-nuts 41 on the sleeves 40 engage flanges 39a on the sleeves 39 to prevent further movement of tho table. The compression of the springs 37 is adjusted initially by the sleeves 39 so as to be equal to the feeding pressure applied to the table by the weights.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2007738A GB506971A (en) | 1938-07-07 | 1938-07-07 | Improved drill testing and/or drilling machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2007738A GB506971A (en) | 1938-07-07 | 1938-07-07 | Improved drill testing and/or drilling machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB506971A true GB506971A (en) | 1939-06-07 |
Family
ID=10139976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2007738A Expired GB506971A (en) | 1938-07-07 | 1938-07-07 | Improved drill testing and/or drilling machine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB506971A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113622818A (en) * | 2021-09-23 | 2021-11-09 | 王平 | Novel traffic engineering road drilling device |
CN114535654A (en) * | 2022-03-24 | 2022-05-27 | 康子文 | Drilling machine is used in racket frame processing |
CN114570980A (en) * | 2022-05-06 | 2022-06-03 | 徐州科美瑞门窗科技有限公司 | Drilling device and method for metal door and window |
CN114570983A (en) * | 2022-03-25 | 2022-06-03 | 江苏农林职业技术学院 | Drilling equipment of explosion-proof hole is used in furniture design panel processing |
CN116000343A (en) * | 2023-03-21 | 2023-04-25 | 晋江熠昕科技有限公司 | Perforating device that rotatory target drone part processing was used |
-
1938
- 1938-07-07 GB GB2007738A patent/GB506971A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113622818A (en) * | 2021-09-23 | 2021-11-09 | 王平 | Novel traffic engineering road drilling device |
CN113622818B (en) * | 2021-09-23 | 2024-03-22 | 王平 | Novel traffic engineering road drilling device |
CN114535654A (en) * | 2022-03-24 | 2022-05-27 | 康子文 | Drilling machine is used in racket frame processing |
CN114535654B (en) * | 2022-03-24 | 2023-05-09 | 瑞金腾泓电子科技有限公司 | Drilling machine for racket frame processing |
CN114570983A (en) * | 2022-03-25 | 2022-06-03 | 江苏农林职业技术学院 | Drilling equipment of explosion-proof hole is used in furniture design panel processing |
CN114570980A (en) * | 2022-05-06 | 2022-06-03 | 徐州科美瑞门窗科技有限公司 | Drilling device and method for metal door and window |
CN116000343A (en) * | 2023-03-21 | 2023-04-25 | 晋江熠昕科技有限公司 | Perforating device that rotatory target drone part processing was used |
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