CN202571386U - Unloading type boring power head - Google Patents
Unloading type boring power head Download PDFInfo
- Publication number
- CN202571386U CN202571386U CN 201220153297 CN201220153297U CN202571386U CN 202571386 U CN202571386 U CN 202571386U CN 201220153297 CN201220153297 CN 201220153297 CN 201220153297 U CN201220153297 U CN 201220153297U CN 202571386 U CN202571386 U CN 202571386U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- main shaft
- casing
- power head
- spindle
- 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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- Drilling And Boring (AREA)
Abstract
The utility model discloses an unloading type boring power head, which comprises a belt pulley transmission device, an oil cylinder driving device, a speed control valve device and a rigid collision stopping device. By the belt pulley transmission device, a spindle and a cutting tool arranged at the front end of the spindle rotate and cut a machined part. By the oil cylinder driving device, a sliding sleeve in a hole of a box body move forwards and backwards along the axial direction of the spindle. By the speed control valve device, the sliding sleeve is switched between quick movement and working feeding. By the rigid collision stopping device, the cutting tool on the spindle in a hole of the sliding sleeve stops feeding. According to the unloading type boring power head, belt transmission tension and rigid collision topping collision force act on the box body, the great load force of an ordinary power head is prevented from acting on the spindle and a bearing, and the spindle and the bearing are subjected to cutting force only, so that the unloading type boring power head has the characteristics of low stress, delicate structure, high accuracy and the like, and is particularly suitable for high-efficiency special combined machine tools, the machining accuracy of the power head can be effectively improved, and the service life of the power head can be prolonged.
Description
Technical field
The utility model relates to a kind of machining topping machanism, is specifically related to a kind of discharging type bore hole unit head that is used for endoporus processing.
Background technology
Widely used bore hole unit head on building-block machine at present, the following problem of its structure ubiquity: at first pulley gear directly is contained on the main shaft, and therefore the pulling force with transmission just acts directly on the main shaft; Next rigidity is bumped the adjusting lever that stops and is contained on the main shaft; Axial force when causing axis feeding (hydraulic thrust of cylinder drive) all acts on main shaft and the bearing; Because the thrust of hydraulic pressure is very big, reach more than 1 ton; The two acting in conjunction makes main shaft and bearing bear very big load, so bearing damages easily, main shaft can deform, and often causes unit head operating accuracy difference and performance unreliable.
Therefore, need a kind of new technical scheme to address the above problem.
The utility model content
Goal of the invention: in order to overcome the deficiency that exists in the prior art, the discharging type bore hole unit head that the utility model proposes stressed little, the delicate structure of a kind of main shaft, can effectively improve machining accuracy and increase the service life.
For achieving the above object, the utility model can adopt following technical scheme:
A kind of discharging type bore hole unit head comprises main shaft, is installed on the cutter of front-end of spindle, the pulley gear of driving main shaft rotation, the cylinder drive and the collision block of driving main shaft feed motion; Said cylinder drive comprises casing, is installed on the piston sliding sleeve in the said casing and makes sliding sleeve realize the flow speed control valve of fast moving and work feed conversion; Said main shaft is installed in the sliding sleeve, and is provided with some bearings between main shaft and the sliding sleeve; The rear end of piston sliding sleeve is installed and be fixed in to said collision block; Said casing is provided with adjusting lever, and after tool feeding put in place, collision block was run into said adjusting lever, and tool feeding promptly stops.
The discharging type bore hole unit head of the utility model is installed on the collision block on the piston sliding sleeve and is installed on the adjusting lever on the casing through setting; After tool feeding put in place, collision block was run into said adjusting lever, and tool feeding promptly stops; Thereby the impact force that tool feeding is stopped to act on piston sliding sleeve and the casing; Therefore avoid these big load forces of general unit head to act on main shaft and the bearing, made main shaft and bearing only bear cutting force, had characteristics such as stressed little, delicate structure, precision height; Can effectively improve the unit head machining accuracy and increase the service life, be particularly suitable for efficient special purpose transfer machine and use.
Further; Said pulley gear comprises belt pulley, spline housing, be positioned at belt pulley the hole the off-load cover and overlap the bearing that cooperates with off-load; The off-load cover is positioned at the outer end of belt pulley and is contained on the rear end face of casing; Spline housing is installed in the off-load cover and is fixed on the said belt pulley, and it is strong that the rear end of said main shaft is provided with spending of cooperating with said spline housing.Said spline housing is in order to pass to main shaft with the rotational motion of belt pulley.
Further, the top of said collision block be contained in speed governing valve gear cooperating on the casing, play control sliding sleeve fast moving and work feed transformation.
Further, said cylinder drive also comprises the drive end bearing bracket that is installed on the casing front end, the rear end cap that is installed on box back, and oil supply system.Under the effect of hydraulic pressure, the piston sliding sleeve moves along the axis direction of main shaft, realizes moving forward and backward of piston sliding sleeve.
Further, said collision block is provided with the control lever that cooperates with said flow speed control valve.
Description of drawings
Fig. 1 is the structural representation of the discharging type bore hole unit head of the utility model.
The specific embodiment
See also shown in Figure 1ly, a kind of discharging type bore hole unit head of the utility model comprises pulley gear; Pulley gear comprises belt pulley 20, and bearing 19 is housed in the hole of belt pulley 20, and bearing 19 is contained on the off-load cover 21; And fixing with nut 18, off-load cover 21 is contained on the rear end face of casing 9 through screw, and belt pulley 20 is connected with spline housing 17 through screw; The spline fitted at the hole of spline housing 17 and main shaft 3 rear portions is passed to main shaft 3 with rotatablely moving of motor through belt pulley 20.Main shaft 3 is installed in the piston sliding sleeve 10 through fore bearing 5 and rear bearing 15, and fixing with bearing cap 4, nut 8 and nut 16 respectively, and the front end of main shaft 3 is equipped with chuck 2, and the cutter 1 that processing parts is used is installed in chuck 2 holes.Piston sliding sleeve 10 is contained on front lining 7 and the back bush 12 in the hole of casing 9, together with drive end bearing bracket 6, rear end cap 13, and sealing device and oil supply system, form cylinder drive.The rearward end of piston sliding sleeve 10 is equipped with collision block 22, and control lever 14 is equipped with on collision block 22 tops, and flow speed control valve 11 is contained on the casing 9, with flow speed control valve 11 cooperatings, plays the transformation of control cutter 1 fast moving and work feed.Adjusting lever 23 is contained in taking on the face of casing 9, with collision block 22 cooperatings, plays rigidity that cutter 1 feeding on the piston sliding sleeve 10 hole inner main axis 3 stops and bumps and stop effect.
The bore hole unit head of the utility model is when reality is used; At first motor rotatablely move through belt pulley 20 transmission devices reach spline housing 17, the key portion by spline housing 17 passes to main shaft 3 again; The front end of main shaft 3 is chuck 2 devices; The cutter 1 that processing parts is used is installed in chuck 2 holes, is rotated and carries out the cut part through motor drives cutter 1.The feed motion of cutter 1 is provided by cylinder drive, and casing 9 holes are the cylinder body of oil cylinder, and piston sliding sleeve 10 is the piston of oil cylinder; Drive end bearing bracket 6 and rear end cap 13 together with two ends; And sealing device and oil supply system, form cylinder drive, under the effect of hydraulic pressure; Piston sliding sleeve 10 moves along the axis direction of main shaft 3, realizes feed motion together with main shaft 3 and cutter 1.The conversion of cutter 1 fast moving and work feed is to be provided by flow speed control valve 11 devices, and flow speed control valve 11 cooperates the speed conversion of control cutter 1 work feed with control lever 14 on the collision block 22 that is contained in piston sliding sleeve 10 rearward end.After cutter 1 work feed put in place, piston sliding sleeve 10 rearward end collision blocks 22 were run into and are contained in casing 9 and take the adjusting lever 23 on the face, rigidity is bumped stop paying out the effect of waving, cutter 1 feeding promptly stops.The last reverse fuel feeding of cylinder drive is realized piston sliding sleeve 10, main shaft 3 and cutter 1 whole returning fast, accomplishes an operation cycle.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (5)
1. a discharging type bore hole unit head is characterized in that: comprise main shaft (3), be installed on the cutter (1) of main shaft (3) front end, the pulley gear of driving main shaft (3) rotation, the cylinder drive and the collision block (22) of driving main shaft (3) feed motion; Said cylinder drive comprises casing (9), is installed in the piston sliding sleeve (10) in the said casing (9) and makes sliding sleeve (10) realize the flow speed control valve (11) of fast moving and work feed conversion; Said main shaft (3) is installed in the sliding sleeve (10), and is provided with some fore bearings (5) and rear bearing (15) between main shaft (3) and the sliding sleeve (10); The rear end of piston sliding sleeve (10) is installed and be fixed in to said collision block (22); Said casing (9) is provided with adjusting lever (23), and after cutter (1) feeding put in place, collision block (22) was run into said adjusting lever (23), and cutter (1) feeding promptly stops.
2. discharging type bore hole unit head according to claim 1; It is characterized in that: said pulley gear comprises belt pulley (20), spline housing (17), be positioned at off-load cover (21) and the bearing (19) that cooperates with off-load cover (21) in the hole of belt pulley (20); Off-load cover (21) is positioned at the outer end of belt pulley (20) and is contained on the rear end face of casing (9); Spline housing (17) is installed in the off-load cover (21) and is fixed on the said belt pulley (20), and it is strong that the rear end of said main shaft (3) is provided with spending of cooperating with said spline housing (17).
3. discharging type bore hole unit head according to claim 1 and 2 is characterized in that: flow speed control valve (11) device cooperating is gone up with being contained in casing (9) in the top of said collision block (22), plays the fast moving and the work feed transformation of control sliding sleeve (10).
4. discharging type bore hole unit head according to claim 1 and 2 is characterized in that: said cylinder drive also comprises the drive end bearing bracket (6) that is installed on casing (9) front end, the rear end cap (13) that is installed on casing (9) rear end, and oil supply system.
5. discharging type bore hole unit head according to claim 1 is characterized in that: said collision block (22) is provided with the control lever (14) that cooperates with said flow speed control valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153297 CN202571386U (en) | 2012-04-11 | 2012-04-11 | Unloading type boring power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153297 CN202571386U (en) | 2012-04-11 | 2012-04-11 | Unloading type boring power head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202571386U true CN202571386U (en) | 2012-12-05 |
Family
ID=47240838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220153297 Expired - Fee Related CN202571386U (en) | 2012-04-11 | 2012-04-11 | Unloading type boring power head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202571386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615312A (en) * | 2012-04-11 | 2012-08-01 | 南京众得利自动化机械有限公司 | Unloading type bore hole power head |
| CN104827065A (en) * | 2015-06-03 | 2015-08-12 | 中船第九设计研究院工程有限公司 | Multi-station combined boring bar |
-
2012
- 2012-04-11 CN CN 201220153297 patent/CN202571386U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615312A (en) * | 2012-04-11 | 2012-08-01 | 南京众得利自动化机械有限公司 | Unloading type bore hole power head |
| CN104827065A (en) * | 2015-06-03 | 2015-08-12 | 中船第九设计研究院工程有限公司 | Multi-station combined boring bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20190411 |