CN2787348Y - Drilling head unit for drilling equipment - Google Patents
Drilling head unit for drilling equipment Download PDFInfo
- Publication number
- CN2787348Y CN2787348Y CN 200420119122 CN200420119122U CN2787348Y CN 2787348 Y CN2787348 Y CN 2787348Y CN 200420119122 CN200420119122 CN 200420119122 CN 200420119122 U CN200420119122 U CN 200420119122U CN 2787348 Y CN2787348 Y CN 2787348Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- main shaft
- drilling
- oil cylinder
- shaft oil
- 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 - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model relates to a drill bit device for drilling equipment, which belongs to the technical field of the fabrication of metallic drilling equipment. The utility model is mainly composed of a base (10), a main drilling shaft (6) which is arranged on the lower part of the base (10) and is provided with a spiral drill bit (2) and a sleeve barrel (4), a main shaft oil cylinder (7) which is arranged in the base (10) and is provided with a proximity switch (9), a spring (5) arranged between the sleeve barrel (4) and the drilling main shaft (6), a quick change connecting rod (8) which is arranged on the top of the spiral drill bit (2) and is provided with external threads and a telescopic adjust nut (3) for the drill bit, etc. The utility model has the advantages of reasonable design, simple structure, convenient adjustment and reliable operation; when the drill bit which is fast driven ahead by the main shaft oil cylinder contacts a workpiece, the inner mechanical structure of the drill bit enables the proximity switch to send signals to control the flowrate of hydraulic oil of the main shaft oil cylinder, and thus, the state of the drill bit is fast changed into work feed; after drilling operation is accomplished, as the drill bit looses resisting force, the proximity switch is caused to loose signals, and then, the main shaft oil cylinder is controlled to enable the drill bit to retreat fast.
Description
Technical field
The utility model relates to a kind of rig drilling head device, belongs to the manufacturing technology field of metal rig.
Background technology
Existing steel construction processing involves great expense, and can't compensate behind the bit wear with the general grating chi or the servomotor of adopting of boring control of digital control hole drilling equipment.
Summary of the invention
The purpose of this utility model provides a kind of reasonable in design, and is simple in structure, easy to adjust, reliable operation, the rig that efficient is high drilling head device.
The utility model is a rig drilling head device, comprise pedestal, place the drilling main shaft of pedestal bottom band drill bit and sleeve, it is characterized in that also being provided with in the pedestal main shaft oil cylinder, the top of described drilling main shaft places in the piston rod of main shaft oil cylinder, also is provided with near switch on the piston rod of described main shaft oil cylinder.
Also can be provided with spring between described sleeve and the drilling main shaft.
Also can be provided with between described drill bit and the drilling main shaft and be with externally threaded quick change extension bar, the external screw thread of quick change extension bar is provided with drill bit telescopic adjustment nut.
The utility model compared with prior art has following outstanding advantage and good effect:
1, advance when running into workpiece when main shaft oil cylinder fast driving drill bit, the frame for movement by drilling head inside makes near the switch sender, and the hydraulic fluid flow rate of control main shaft oil cylinder advances thereby drill bit is become the worker fast; When drilling through, drill bit makes near switch and loses signal owing to lose resistance, and control main shaft oil cylinder makes the quick rollback of drill bit;
2,, tend to occur drill bit and fall short of and to add extension bar and solve when bit wear or when using old drill bit.Use the utility model only need be regulated the drill bit telescopic adjustment nut that is positioned at the drill holder head and just can solve, and adjustable range can reach 60mm, shortens the initial position of drill bit from surface of the work, improves drilling efficiency;
3, adopt drill bit telescopic adjustment nut and quick change extension bar, make that more bit change is more efficient and convenient, shorten the clamping time.
Description of drawings
Fig. 1-the 4th, the schematic diagram when overall structure of the present utility model and different operating state;
Fig. 1 is the schematic diagram of head when workpiece is in optimum state of drill bit;
Fig. 2 is the schematic diagram of the head of drill bit when running into surface of the work;
Fig. 3 is the schematic diagram of workpiece when being drilled through;
Fig. 4 is that drill bit is worn or the schematic diagram when using old drill bit.
Among the figure: 1 is workpiece, and 2 is drill bit, and 3 is drill bit telescopic adjustment nut, and 4 is sleeve, and 5 is spring, and 6 are the drilling main shaft, and 7 is the main shaft oil cylinder, and 8 is the quick change extension bar, and 9 is near switch, and 10 is pedestal.
The specific embodiment
The utility model is mainly by pedestal 10, place the drilling main shaft 6 of pedestal 10 bottom band spiral bits 2 and sleeve 4, place the main shaft oil cylinder of being with in the pedestal 10 near switch 97, place the spring 5 between sleeve 4 and the drilling main shaft 6, place the formations such as quick change extension bar 8 of spiral bit 2 top band external screw threads and drill bit telescopic adjustment nut 3.
Main shaft oil cylinder 7 is screwed on pedestal 10, and drilling main shaft 6 is installed on the piston rod inside of main shaft oil cylinder 7, and with the bearing supporting, drilling main shaft 6 can rotate flexibly each other; Preceding half section to be processed with external screw thread, second half section be locating surface for quick change extension bar 8, be installed on the endoporus of drilling main shaft 6, drill bit telescopic adjustment nut 3 is installed on preceding half section external screw thread, can regulate drill bit telescopic adjustment nut 3 according to the different length of drill bit, make spiral bit 2 heads be in optimum state (state as shown in Figure 1) from workpiece.Sleeve 4 is screwed on the cylindrical of drilling main shaft 6, spring 5 is installed between sleeve 4 and the drilling main shaft 6, can make sleeve 4 move axially 5mm behind spring 5 pressurizeds along drilling main shaft 6, spiral bit 2 is fixed in the quick change extension bar 8, is fixed on the piston rod end (not rotating) of main shaft oil cylinder 7 near switch 9.
During work, adopt the mode of the rotation of motor-driven drill bit, the feeding of hydraulic oil cylinder driving drill bit to hole.Spiral bit 2 rotation and fast feeds, when the head of spiral bit 2 is run into workpiece 1 surface (state as shown in Figure 2), spiral bit 2 begins to fall back, by drill bit telescopic adjustment nut 3 sleeve 4 is blocked near switch 9 to pop-up, send signal near switch 9 and make spiral bit 2 F.F.s become slow-motion, beginning is boring normally; When workpiece 1 is drilled through (state as shown in Figure 3), spiral bit 2 descends suddenly under the effect of self gravitation and spring 5 fast, make the sender zone of sleeve 4 decline disengagings, send signal near switch 9 spiral bit 2 is return fast, finish the processing in hole near switch 9.
When spiral bit 2 is worn or uses old drill bit and can't get through the hole time (state as shown in Figure 4), can make spiral bit 2 downward modulations by the drill bit telescopic adjustment nut 3 that adjusting is positioned at quick change extension bar 8 heads, make the head of spiral bit 2 be in optimum state (state as shown in Figure 1) from workpiece.
Claims (3)
1, a kind of rig drilling head device, comprise pedestal (10), place the drilling main shaft (6) of pedestal (10) bottom band drill bit (2) and sleeve (4), it is characterized in that also being provided with in the pedestal (10) main shaft oil cylinder (7), the top of described drilling main shaft (6) places in the piston rod of main shaft oil cylinder (7), also is provided with near switch (9) on the piston rod of described main shaft oil cylinder (7).
2, by the described rig of claim 1 drilling head device, it is characterized in that also being provided with spring (5) between described sleeve (4) and the drilling main shaft (6).
3, by claim 1 or 2 described rig drilling head devices, it is characterized in that also being provided with between described drill bit (2) and the drilling main shaft (6) and be with externally threaded quick change extension bar (8), the external screw thread of quick change extension bar (8) is provided with drill bit telescopic adjustment nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420119122 CN2787348Y (en) | 2004-12-28 | 2004-12-28 | Drilling head unit for drilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420119122 CN2787348Y (en) | 2004-12-28 | 2004-12-28 | Drilling head unit for drilling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2787348Y true CN2787348Y (en) | 2006-06-14 |
Family
ID=36785644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420119122 Expired - Fee Related CN2787348Y (en) | 2004-12-28 | 2004-12-28 | Drilling head unit for drilling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2787348Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784937A (en) * | 2012-07-27 | 2012-11-21 | 樊荣 | Method for drilling rocker shaft oil hole |
-
2004
- 2004-12-28 CN CN 200420119122 patent/CN2787348Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784937A (en) * | 2012-07-27 | 2012-11-21 | 樊荣 | Method for drilling rocker shaft oil hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |