CN202606916U - High-accuracy bench drill - Google Patents
High-accuracy bench drill Download PDFInfo
- Publication number
- CN202606916U CN202606916U CN 201220261785 CN201220261785U CN202606916U CN 202606916 U CN202606916 U CN 202606916U CN 201220261785 CN201220261785 CN 201220261785 CN 201220261785 U CN201220261785 U CN 201220261785U CN 202606916 U CN202606916 U CN 202606916U
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- drive pulley
- drilling rod
- drill
- gear
- drill stem
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Abstract
The utility model discloses a high-accuracy bench drill which comprises a lathe body provided with a motor, the lathe body is axially and slipperily provided with a drill stem, the upper section of the drill stem is provided with a sliding slot, the drill stem is sleeved with a drive pulley driven by the motor through a belt, the inner wall of the drive pulley is fixedly provided with a slide block which is sliding fit with the sliding slot, the drill stem is also sleeved with a feeding sleeve which can only rotate around the drill stem, the outer wall of the feeding sleeve is provided with a rack, the lathe body is also provided with a gear for driving the rack, the gear is provided with an operating lever, the upper end of the drill stem is coaxially and fixedly provided with a support bar, the upper end of the support bar is fixedly provided with a limiting block, and the support bar and the drill stem between the limiting block and the drive pulley are respectively sleeved with a support spring for unfolding the limiting block and the drive pulley. The drive pulley is coaxially and fixedly provided with an extension tube, and the lathe body is provided with a support bearing sleeved with the extension tube. The high-accuracy bench drill disclosed by the utility model is reasonable in structure, and can improve the machining accuracy, and effectively prevent a drill bit from being twisted off; and the high-accuracy bench drill is convenient to operate, and especially suitable for being used for machining thin plates with high accuracy requirements.
Description
Technical field
The utility model relates to a kind of high accuracy bench drill.
Background technology
Bench drill is called for short bench drill, is a kind of advantages of small volume, and is easy and simple to handle, is installed in the small-sized hole processor bed that uses on the dedicated usually.The bench drill bore diameter is generally below 13 millimeters, and maximum is no more than 16 millimeters.Its main shaft speed change is generally realized through changing the position of V-belt on the tower belt wheel, the moving operation of axis feeding armrest.Bench drill can be placed on the operation post, the vertically arranged small drilling machine of main shaft.The kind of drilling machine is a lot, mainly comprises radial drilling machine, milling and drilling machine, hole depth drilling machine, horizontal drilling machine and upright drill or the like.Wherein, radial drilling machine can be around column revolving, up-down, and main spindle box can move horizontally on rocking arm usually.The milling and drilling machine workbench can be in length and breadth to moving, and auger spindle is vertically arranged, can carry out the drilling machine of milling.The hole depth drilling machine uses special deep hole drill, workpiece rotation, the drilling machine of deep hole drilling.Flush end face centre-drilling lathe cutting axle type end face and the centre-drilling lathe of processing with centre drill.Horizontal drilling machine main shaft horizontal arrangement, the vertically moving drilling machine of main shaft.
Upright drill mainly comprises the bed body that motor is installed; Have the drilling rod of chute through bearing shaft to being slidingly fitted with epimere on the bed body, be set with on the drilling rod, be installed with slide block on the drive pulley inwall with the chute axial sliding fit by motor-driven drive pulley; Also being set with on the drilling rod only can be around the feeding cover of drilling rod rotation; Feeding cover outer wall is provided with axially extended tooth bar, also is equipped with on the bed body and drives the axially movable gear of tooth bar, is equipped with on the gear and promotes the action bars that gear rotates.The power that upright drill rotates mainly drives drilling rod by motor through drive pulley and rotates and obtain, and the axially movable power of drilling rod is mainly driven with the gear that transmission with it cooperates by the feeding cover that is arranged on the drilling rod.Through pushing the action bars that is installed on the gear, just can be installed in the tooth bar that feeding puts and move axially through gear drive, also just realized driving the purpose of drilling rod feeding, operation is very easy.The weak point of traditional vertical drilling machine is; Because have the gap between the gear of driving drilling rod axial feed and the tooth bar, cause drilling rod to have a less feeding gap in the axial direction, like this; The drill bit of drilling rod lower end is easy to generate play up and down when cutting; Not only can cause machining accuracy to reduce, and when boring finishes, twist off drill bit easily, improve processing cost greatly.
The utility model content
The technical problem that the utility model will solve is to provide a kind of rational in infrastructure to above-mentioned deficiency, can improve machining accuracy, effectively prevent that drill bit from twisting off, and easy to operate high accuracy bench drill.
For solving the problems of the technologies described above; This high accuracy bench drill comprises the bed body that motor is installed, and has the drilling rod of chute through bearing shaft to being slidingly fitted with epimere on the bed body, is set with on the drilling rod by the drive pulley of motor through belt drives; Be installed with slide block on the drive pulley inwall with the chute axial sliding fit; Also being set with on the drilling rod only can be around the feeding cover of drilling rod rotation, and feeding cover outer wall is provided with axially extended tooth bar, also is equipped with on the bed body and drives the axially movable gear of tooth bar; Be equipped with on the gear and promote the action bars that gear rotates; Its design feature is: the coaxial support bar that is installed with in drilling rod upper end, post upper is installed with limited block, is set with the support spring that limited block and drive pulley are strutted on support bar between limited block and the drive pulley and the drilling rod.
The high accuracy bench drill of this structure is to realize improving machining accuracy, effectively prevent that drill bit from twisting off through elastic support structure, and easy to operate.
Elastic support structure comprises through bearing and is installed in the drilling rod on the body that drilling rod not only can freely rotate, and can endwisely slip.The drilling rod lower end is equipped with drill bit through tool rest, and drill bit can be processed the work piece of below when drilling rod rotated.The drilling rod epimere is provided with axially extended chute, and the drilling rod epimere also is set with drive pulley.Bed also is equipped with the motor that is rotatably assorted with drive pulley on the body, like this, drive pulley just can be under the support of drilling rod and motor-driven high speed rotating.The drive pulley inwall is provided with the slide block that the chute with the drilling rod epimere is slidingly matched; The main effect of slide block, be through with being slidingly matched of chute drilling rod and drive pulley are carried out spacing, like this; Drive pulley is upwards fixed spacing being in the same place with drilling rod in week, but is slidingly matched in the axial direction.Like this, when motor gets when electric, motor just drives the drilling rod high speed rotating through drive pulley, and drilling rod can also move relative to drive pulley under external force in the axial direction.Because link together through belt transmission between motor and the drive pulley; Has the effect that both elasticity is tightened; Therefore, when drilling rod moved axially, the axial friction that drilling rod produces drive pulley can be tightened by the elasticity of belt and made every effort to overcome clothes; The bed body is motionless basically relatively thereby guarantee drive pulley, the reliability when having guaranteed the work of this high accuracy drilling machine.Also be set with the feeding cover on the drilling rod, the feeding cover can rotate around drilling rod, but can not endwisely slip along drilling rod.Therefore, do the time spent, can promote drilling rod and do moving axially in the same way when the feeding cover receives axial force.Be installed with tooth bar on the feeding cover outer wall, the bearing of trend of tooth bar is axially identical with drilling rod.Also be equipped with and the tooth bar meshed gears on the bed body, be installed with the action bars that driven wheel rotates on the gear.Like this,, the gear drive tooth bar is moved up and down, also just play the effect that driving feeding cover and drilling rod move up and down through the swing of pressing operation bar.The drilling rod upper end is installed with support bar, support bar and the coaxial setting of drilling rod.Post upper is installed with limited block, and the external diameter of limited block is greater than the external diameter of support bar, can play limit effect preferably like this.Be set with support spring on support bar between limited block and the drive pulley and the drilling rod, the main effect of support spring is through self elasticity limited block and drive pulley to be strutted, and has also just played the upwards effect of elasticity supports drill rods.Like this; When pressing operation bar driving drilling rod moves down; The gear mesh tooth bar that action bars drives has downward power, and support spring makes tooth bar have power upwards to gear, so gear and tooth bar can tightly mesh together; Eliminate gap between the two in traditional drilling machine, thoroughly avoided precision that play caused reduction and the drill bit of drill bit when cutting to twist off problem.This high accuracy drilling machine only needs just can realize feeding through the pressing operation bar when holing, operates very simple.
As improvement, the coaxial exntension tubs that are installed with on the drive pulley, bed is equipped with the spring bearing of suit exntension tubs on the body.
Through being installed in the exntension tubs on the drive pulley and being sleeved on the spring bearing on the exntension tubs; Can drive pulley be rotatably installed on the body; Can guarantee the stable cooperation of drive pulley and drilling rod; Also can carry out secure support to drilling rod, help to improve the overall structure stability of this high accuracy drilling machine through support spring.
In sum, adopt the high accuracy bench drill of this structure, rational in infrastructure, can improve machining accuracy, effectively prevent that drill bit from twisting off, and easy to operate, be particularly suitable for the higher and thin sheet material of requirement on machining accuracy.
Description of drawings
In conjunction with accompanying drawing the utility model is explained further details:
Fig. 1 is the structural representation of the utility model.
Among the figure: 1 is the bed body, and 2 is motor, and 3 is bearing, and 4 is chute, and 5 is drilling rod, and 6 is drive pulley; 7 is slide block, and 8 are the feeding cover, and 9 is tooth bar, and 10 is gear, and 11 is action bars; 12 is support bar, and 13 is limited block, and 14 is support spring, and 15 is exntension tubs, and 16 is spring bearing.
The specific embodiment
As shown in Figure 1, this high accuracy bench drill comprises a body 1, through bearing 3 drilling rod 5 is installed on the bed body 1.Drilling rod 5 is cylindrical straight-bar, vertically is provided with, and drilling rod 5 not only can freely rotate, and bearing 3 axially slides up and down relatively.Drilling rod 5 lower ends are equipped with drill bit through tool rest, and drill bit can be processed the work piece of below when drilling rod 5 rotated.Drilling rod 5 epimeres are provided with axially extended chute 4, and drilling rod 5 epimeres also are set with drive pulley 6.Bed also is equipped with the motor 2 that is rotatably assorted with drive pulley 6 on the body 1, like this, drive pulley 6 just can be under the support of drilling rod 5 and motor 2 drivings high speed rotating.Drive pulley 6 inwalls are provided with the slide block 7 that the chute 4 with drilling rod 5 epimeres is slidingly matched; The main effect of slide block 7; Be through carrying out spacing to drilling rod 5 and drive pulley 6 with being slidingly matched of chute 4; Like this, drive pulley 6 is upwards fixed spacing being in the same place with drilling rod 5 in week, but is slidingly matched in the axial direction.
When motor 2 when electric, motor 2 just drives drilling rods 5 high speed rotating through drive pulley 6, and drilling rod 5 can also move relative to drive pulley 6 under external force in the axial direction.Because link together through belt transmission between motor 2 and the drive pulley 6; Has the effect that both elasticity is tightened; Therefore, when drilling rod 5 moved axially, the axial friction that 5 pairs of drive pulley of drilling rod 6 produce can be tightened by the elasticity of belt and made every effort to overcome clothes; Thereby guarantee that drive pulley 6 relative bodies 1 are motionless basically, the reliability when having guaranteed the work of this high accuracy drilling machine.Also be set with feeding cover 8 on the drilling rod 5, feeding cover 8 can rotate around drilling rod 5, but can not endwisely slip along drilling rod 5.Therefore, do the time spent, can promote drilling rod 5 and do moving axially in the same way when feeding cover 8 receives axial force.Feeding is overlapped and is installed with tooth bar 9 on 8 outer walls, and the bearing of trend of tooth bar is axially identical with drilling rod 5.Also be equipped with and tooth bar meshed gears 10 on the bed body 1, be installed with the action bars 11 that driven wheel 10 rotates on the gear 10.Like this,, can make gear 10 drive tooth bar 9 and move up and down, also just play the effect that driving feeding cover 8 and drilling rod 5 move up and down through 11 swings of pressing operation bar.Drilling rod 5 upper ends are installed with support bar 12, support bar 12 and drilling rod 5 coaxial settings.Support bar 12 upper ends are installed with limited block 13, and the external diameter of limited block 13 is greater than the external diameter of support bar 12, can play limit effect preferably like this.Be set with support spring 14 on support bar 12 between limited block 13 and the drive pulley 6 and the drilling rod 5, the main effect of support spring 14 is through self elasticity limited block 13 and drive pulley 6 to be strutted, and has also just played the upwards effect of elasticity supports drill rods 5.Like this; When pressing operation bar 11 driving drilling rods 5 move down; 10 pairs of tooth bars of gear that action bars 11 drives have downward power, and support spring 14 makes tooth bar have power upwards to gear 10, so gear 10 can tightly mesh together with tooth bar; Eliminate gap between the two in traditional drilling machine, thoroughly avoided precision that play caused reduction and the drill bit of drill bit when cutting to twist off problem.This high accuracy drilling machine only needs just can realize feeding through pressing operation bar 11 when holing, operates very simple.
In the present embodiment, the coaxial exntension tubs 15 that are installed with on the drive pulley 6, bed is equipped with the spring bearing 16 of suit exntension tubs 15 on the body 1.Through being installed in the exntension tubs 15 on the drive pulley 6 and being sleeved on the spring bearing 16 on the exntension tubs 15; Can drive pulley 6 be rotatably installed on the body 1; Can guarantee the stable cooperation of drive pulley 6 and drilling rod 5; Also can carry out secure support, help to improve the overall structure stability of this high accuracy drilling machine through 14 pairs of drilling rods of support spring 5.
Claims (2)
1. high accuracy bench drill; Comprise the bed body (1) that motor (2) is installed; Bed body (1) upward endwisely slips through bearing (3) drilling rod (5) that epimere has chute (4) is installed; Be set with on the drilling rod (5) by the drive pulley (6) of motor (2) through belt drives; Be installed with slide block (7) on drive pulley (6) inwall with chute (4) axial sliding fit; Also being set with on the drilling rod (5) only can be around the feeding cover (8) of drilling rod (5) rotation, and feeding cover (8) outer wall is provided with axially extended tooth bar (9), also is equipped with on the bed body (1) to drive the axially movable gear of tooth bar (9) (10); Be equipped with on the gear (10) and promote the action bars (11) that gear (10) rotates; It is characterized in that: the coaxial support bar (12) that is installed with in drilling rod (5) upper end, support bar (12) upper end is installed with limited block (13), is set with the support spring (14) that limited block (13) and drive pulley (6) are strutted on support bar (12) between limited block (13) and the drive pulley (6) and the drilling rod (5).
2. high accuracy bench drill as claimed in claim 1 is characterized in that: drive pulley (6) goes up the coaxial exntension tubs (15) that are installed with, and the spring bearing (16) of suit exntension tubs (15) is installed on the bed body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261785 CN202606916U (en) | 2012-06-05 | 2012-06-05 | High-accuracy bench drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261785 CN202606916U (en) | 2012-06-05 | 2012-06-05 | High-accuracy bench drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606916U true CN202606916U (en) | 2012-12-19 |
Family
ID=47340648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220261785 Expired - Fee Related CN202606916U (en) | 2012-06-05 | 2012-06-05 | High-accuracy bench drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202606916U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562750A (en) * | 2014-09-11 | 2016-05-11 | 力山工业股份有限公司 | Drilling machine capable of rapidly drilling |
| CN107378040A (en) * | 2017-07-25 | 2017-11-24 | 合肥全套机械科技有限公司 | A kind of building board drilling equipment |
| CN107457423A (en) * | 2017-07-31 | 2017-12-12 | 合肥万伟达信息科技有限公司 | Sheet material drilling device is used in a kind of computer manufacture |
-
2012
- 2012-06-05 CN CN 201220261785 patent/CN202606916U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562750A (en) * | 2014-09-11 | 2016-05-11 | 力山工业股份有限公司 | Drilling machine capable of rapidly drilling |
| CN107378040A (en) * | 2017-07-25 | 2017-11-24 | 合肥全套机械科技有限公司 | A kind of building board drilling equipment |
| CN107457423A (en) * | 2017-07-31 | 2017-12-12 | 合肥万伟达信息科技有限公司 | Sheet material drilling device is used in a kind of computer manufacture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130605 |