• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device for drilling holes for bristles of a brush provided with a drill holder which can be rotated by means of a drive motor, which drill holder is driven by a shaft on which a toothed wheel or a belt pulley is arranged integral in rotation but movable longitudinally, which the shaft is a splined ball shaft and the toothed wheel or the belt pulley is guided integral in rotation but longitudinally movable on the splined ball shaft by the via a grooved ball bushing which toothed wheel or belt pulley is driven by the motor.
    公开号:BE1022162B1
    申请号:E2014/0617
    申请日:2014-08-19
    公开日:2016-02-22
    发明作者:Guido Sommer
    申请人:Zahoransky Ag；
    IPC主号:
    专利说明:

    The invention relates to a drilling device for drilling holes intended to be lined with bristles in a brush body, the device being provided with a drill holder which can be used to drill holes in a brush body. can be rotated by means of a drive motor and carries a drill as well as a movable brush body holder for positioning the brush body relative to the drill in the longitudinal direction and the transverse direction of the brush body, the drill carrying the drill can be moved at an angle relative to the brush body.
    In order to manufacture, for example, household brushes or technical brushes, a brush body is used in which a plurality of holes are made in order to fix a tuft of bristles in each of these holes by means of a filling machine. In order to be able to drill into a brush body the desired number of holes, at least various drilling devices have already been put in place. For example, drilling devices have been created in which the drill bit required for drilling the holes is carried by a rotatably mounted drilling spindle which is drivingly connected to a drive motor via a spindle. a belt transmission. Drilling devices are already known in which the drilling spindle is provided directly on the shaft of a drive motor. While drilling devices with a belt transmission for the drilling spindle offer advantages in low torque idle speed, drilling devices in which the drilling spindle is directly on the shaft of the drive motor, are preferably used for high speed drilling. Such high speed drilling may, however, lead to heating of the plastic material and undesirable fusions for certain brush bodies made of plastic material.
    Drilling devices in which the piercing spindle is in driving connection with the drive motor via a belt drive can not compete with the high speeds of these piercing devices in which the spindle Drilling is arranged directly on the motor shaft because the spindle bearings must withstand, in addition to the operating forces, the enormous forces of inertia of the belt pulley due to the actual drilling movement and must furthermore also support the tensile forces of the belt radially applied. In order for the pin bearings to be able to withstand these forces, larger spindle bearings are generally required in order to achieve a comparable service life; but the larger spindle bearings also result in a reduction in the maximum speed. In addition, the belt required for the drive connection has problems of operating time at high speeds, can also occasionally come off unintentionally due to high centrifugal forces and becomes very noisy. While piercing devices with drilling spindle located directly on the motor shaft can reach speeds of 30,000 rpm, these piercing devices in which the piercing spindle is in driving connection with the spindle motor. drive through an engine belt drive rotates at maximum speeds of 23,000 rpm.
    A piercing spindle which turns separately from the drive motor generally has the advantage that the drive motor must not be driven at the same time. Since the drive motor must be driven at the same time, it results in greater wear of the driving parts such as, for example, levers, bearings, and there is a risk of cable breakage since the internal cables of the motor are accelerated at the same time, which is the main cause of a failure of the spindle in the case of direct drive drilling pins. According to the model, the cooling pipe of the piercing spindle must be moved at the same time. Drilling devices in which the piercing spindle is in drive connection with the drive motor via a belt drive provide the additional benefit of easier maintenance, since the mechanic must only work on the mechanics of the drilling spindle in case of repair and must not deal in addition to the electricity or electronics of the mechatronic spindle, which often amounts to asking too much and is also a source of 'error.
    Already known from EP 1 493 354 B1 a drilling device of the type mentioned at the beginning. The known drilling device has a drive motor on the shaft of which is disposed a drilling spindle which carries a drill bit. To move the drill towards a brush body and away from the brush body after drilling a hole, the drive motor is provided on the carriage of a linear guide. The known piercing device has a brush body holder that can be moved in the longitudinal direction to drill the holes in rows and can be oriented in the transverse direction of the brush body. The disadvantage with this known drilling device lies in the fact that the drive motor placed on the carriage of the linear guide must be moved back and forth and that the inertia forces due to this can carry damage to the sliding speed of the carriage. This is why the problem consists in particular in providing a drilling device of the type mentioned at the beginning which is characterized by long service life and long maintenance intervals, comparatively high machining speeds and simplified maintenance. .
    The solution of the invention to this problem is that, for the drilling device of the type mentioned at the beginning, the drill holder is rotatably mounted and is in driving connection with a shaft on which a gear wheel or a belt pulley is disposed rotatably but longitudinally displaceable, in that the shaft is designed as a splined shaft with balls and the toothed wheel or the belt pulley is rotatably guided but longitudinally displaceable on the splined shaft. by means of a ball-type bushing and that the toothed wheel or the belt pulley is in drive connection with the drive motor via an input wheel or a gear wheel. drive belt.
    The drilling device according to the invention has a drill pin or a similar drill holder, which drill holder is rotatably mounted. The drill holder is in drive connection with a shaft on which a toothed wheel or a belt pulley is disposed rotatably but longitudinally displaceable. The toothed wheel located on the shaft or the belt pulley located on the shaft is in drive connection with the drive motor via a corresponding gear wheel or via a belt of transmission. Since the toothed wheel or the belt pulley is rotatably arranged but longitudinally displaceable on the shaft, the drill can be moved back and forth to drill the holes without the motor of the motor. comparatively heavy training must be moved at the same time. As excessive inertia forces are therefore avoided, comparatively fast sliding movements with the drill holder are also possible. Excessive inertia forces are avoided, and smaller bearings can also be used to mount the drill. As the drive motor does not directly carry the drill, the maintenance and repair of these components of the drilling device according to the invention are greatly simplified.
    In order to be able to cope with torsional stresses and to be able to further promote the long durations of use of the drilling device, it is provided according to the invention that the shaft is designed as a splined shaft with balls and that the wheel toothed or the belt pulley is guided rotatably but movable longitudinally on the splined shaft ball through a grooved ball bushing.
    In order to be able to reciprocate the drill holder at an angle to the brush body to be machined, it is advantageous for the drill holder to be slidably guided by means of a linear guide. . In order to be able to move the drill holder at high sliding speeds which are high at an angle to the brush body to be machined, it is advantageous for the drill holder to be able to move in oscillatory sliding motion. intermediate of an eccentric drive which converts the rotational movement of a drill driver drive into oscillating sliding movements of the drill holder.
    A preferred embodiment according to the invention provides that the drill driver carries an eccentric which is in drive connection with a carriage of the linear guide via a crank and that the drill holder is mounted. rotating on the carriage.
    It may be advantageous for the drill holder to be connected to the shaft by a clutch which can compensate for an axial offset between the drill holder and the shaft.
    Improvements according to the invention emerge from the drawing in connection with the description of the figures and the claims. The invention will be explained in more detail below on the basis of a preferred embodiment. The single figure shows a piercing device in a schematic perspective representation, which piercing device is for drilling holes in a brush body, which holes are to be used to insert bristles. The single figure shows a drilling device 1 with which holes 2 can be drilled in a brush body 3, tufts of bristles being then anchored in these holes 2 by means of a not shown packing device.
    The drilling device 1 shown here, which may also be a constituent part of a much more complex brush making machine, has a base plate 4. A linear guide 5 with a carriage uri 6 is provided on the base plate 4 of the drilling device 1. A drill holder 7 which carries a spiral drill bit or a similar bit 8 is rotatably mounted on the carriage 6. The drill holder 7 on the carriage 6 is slidably guided on the linear guide 5 and can be rotated by means of a drive motor 9.
    The piercing device moves a brush body holder. In order to fix a brush body 3 to be machined on the brush body holder 10, the brush body holder 10 has clamps 11 between which the brush body 3 to be machined can be clamped. The brush body holder 10 is movable to position the brush body 3 relative to the drill bit 8 in the longitudinal direction and in the transverse direction of the brush body 3, while the drill holder 7 carrying the drill bit 8 can be moved in a reciprocating motion at an angle and in particular at a right angle to the brush body 3. While the brush body holder is movable in the X direction and the Y direction, the holder Drill 7 rotatably mounted can be moved in the Z direction.
    The drill holder 7 is in drive connection with the shaft 12 on which shaft 12 a first belt pulley 13 is disposed rotatably but longitudinally displaceable. The shaft 12 may be designed as a splined shaft on which the belt pulley is guided longitudinally displaceable via a grooved ball bushing 20. The first belt pulley 13 is in drive connection with the driving motor 9 via a drive belt 14. The drive belt 14 runs between the first belt pulley 13 on the shaft 12 and a second belt pulley 15 which is larger than the first one. and is located on the drive motor shaft. Since the first belt pulley 13 is disposed rotatably but longitudinally displaceable on the shaft 12, the drill holder 7 can be moved reciprocally to drill the holes 2 without the motor of The comparatively heavy workout must be driven at the same time. As excessive inertia forces are therefore avoided, comparatively fast sliding movements with the drill holder 7 are also possible. Since the drive motor 9 does not directly carry the drill holder 7, the maintenance and repair of these component parts is clearly simplified.
    The bit holder 7 can be oscillatingly slidable through an eccentric drive. The eccentric drive converts the rotational movement of a drill holder drive 16 CTSfsmovements of oscillating slides of the drill holder 7-УЩ The drive 16 of the drill holder carries for this purpose an eccentric 17 which is connected to drive with the carriage 6 of the linear guide 5 by means of a crank 18. In order to compensate for any axial offset between the drill holder 7 and the shaft 12, the drill holder 7 can be connected to the shaft 12 via a clutch 19.
    List of part numbers 1 Drilling device 2 Holes 3 Brush body 4 Base plate 5 Linear guide 6 Trolley 7 Drill holder 8 Drill 9 Drive motor 10 Brush body holder 11 Clamp 12 Shaft 13 First belt pulley 14 Drive belt 15 Second belt pulley 16 Drill drive 17 Eccentric 18 Crank 19 Clutch 20 Grooved ball bushing
    权利要求:
    Claims (5)
    [1]
    BENEFITS * CLAIMS I
    Drilling device (1) for drilling holes (2) to be filled with bristles in a brush body (3), provided with a drill holder (7) which can be rotated by means of a drive motor (9) and carries a drill (8), as well as a brush body holder (10) which is movable in the longitudinal direction and the transverse direction of the brush body (3) for positioning the brush body (3) relative to the drill (8), the drill holder (7) carrying the drill (8) being movable at an angle to the brush body (3), characterized in that the holder drill (7) is rotatably mounted and is in drive connection with a shaft (12) on which a toothed wheel or a belt pulley (13) is rotatably but longitudinally displaceable, in that the shaft (13) is 12) is designed as a splined shaft and the toothed wheel or the belt pulley (13) is rotatably and longitudinally guided together. displaceable on the spline shaft by means of a grooved ball bush (20) and that the gear or the belt pulley (13) is drivingly connected to the drive motor ( 9) by means of a corresponding toothed wheel or a transmission belt (14).
    [2]
    Drilling device according to claim 1, characterized in that the drill holder (7) is slidably guided by means of a linear guide (5).
    [3]
    Drilling device according to claim 1 or 2, characterized in that the drill holder (7) can be oscillatingly moved by means of an eccentric drive, which eccentric drive converts the rotary motion of a drill holder drive (16) in oscillating sliding movements of the drill holder (7).
    [4]
    Drilling device according to claim 3, characterized in that the drill holder drive carries an eccentric (17) which is in drive connection with a carriage (6) of the linear guide (5) via a crank (18) and in that the drill holder (7) is rotatably mounted on the carriage (6).
    [5]
    5. Iselon drilling device any one of claims 1 to 4, characterized in that the drill holder (7) is connected to the shaft (12) by means of a clutch (19), which clutch (19) can compensate a axial offset between the drill holder (7) and the shaft (12).
    类似技术:
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    同族专利:
    公开号 | 公开日
    ITMI20140261U1|2016-02-13|
    CN204122791U|2015-01-28|
    DE202013007657U1|2014-12-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1191334B|1964-05-04|1965-04-22|Friedrich Schlesinger Maschine|Automatic brush drilling and tamping machine|
    EP1493354A1|2003-07-03|2005-01-05|Firma G.B. BOUCHERIE, naamloze vennootschap|Method and device for manufacturing brushes|
    CN104959653B|2015-06-11|2017-03-01|苏州市吴中区胥口广博模具加工厂|The drill head revolving power mechanism of double rotating disc type automatic drilling machine|
    CN106521917A|2015-09-10|2017-03-22|天津宝盈电脑机械有限公司|Novel cutter lifting and rotating device of computerized cutting bed|
    CN107983983A|2017-11-14|2018-05-04|嘉善东顺塑料五金制品厂（普通合伙）|A kind of lateral support member for drilling machine|
    CN108031893B|2017-11-17|2019-08-27|山东华源索具有限公司|A kind of machining groove type Work treatment installation|
    CN109926610B|2019-05-06|2020-05-01|莒南县友园机械有限公司|Machining drilling equipment|
    CN110763512A|2019-12-03|2020-02-07|中国矿业大学|Vertical drilling core taking machine with small multi-drill bit for laboratory|
    CN111590115B|2020-05-14|2021-06-15|安徽江淮汽车集团股份有限公司|Drilling device|
    CN112719342B|2020-12-29|2022-01-14|南京天则汽车科技有限公司|Full-automatic two-way drilling equipment|
    CN113211104A|2021-06-01|2021-08-06|魏绍辉|Machining equipment for spring lock cylinder lock body|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE201300765|2013-08-29|
    DE202013007657.7U|DE202013007657U1|2013-08-29|2013-08-29|Drilling device for drilling boreholes in a brush body|
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