CN203304664U - Weight balancing mechanism of numerical-controlled milling machine - Google Patents
Weight balancing mechanism of numerical-controlled milling machine Download PDFInfo
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- CN203304664U CN203304664U CN2013203564191U CN201320356419U CN203304664U CN 203304664 U CN203304664 U CN 203304664U CN 2013203564191 U CN2013203564191 U CN 2013203564191U CN 201320356419 U CN201320356419 U CN 201320356419U CN 203304664 U CN203304664 U CN 203304664U
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- pulley
- milling machine
- balancing weight
- weight balancing
- main shaft
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Abstract
The utility model relates to the field of numerical-controlled milling machines, and in particular relates to a weight balancing mechanism of the numerical-controlled milling machine. The weight balancing mechanism comprises a weight balancing block and a pulley which are arranged on a vertical column of the milling machine, wherein the weight balancing block and a main shaft box are respectively positioned on two sides of the pulley; a shaft line of the pulley is arranged in a horizontal direction; the weight balancing block and the main shaft box are lower than the height of a position in which the pulley is arranged; after a lifting rope passes through the pulley, one end of the lifting rope is fixedly connected with the weight balancing block while the other end of the lifting rope is fixedly connected with the main shaft box; the weight of the weight balancing block is matched with that of the main shaft box; a motor is used for driving the main shaft box to move upwards; the weight balancing block is driven to move downwards under the action of gravity, namely, the gravity equivalently provides the upward pulling force for the main shaft box. Thus, the driving force provided by the stepped motor is reduced; the motor power is lowered; meanwhile the abrasion to the nuts of lead screws and the like is lowered. Therefore, the service lives of components and parts are prolonged; the machining precision is improved; the cost is lowered. In addition, a milling head is prevented from sliding down after shutdown, so that the stability of the milling machine is improved.
Description
Technical field
The utility model relates to the CNC milling machine field, particularly the balance weight mechanism of CNC milling machine.
Background technology
CNC milling machine comprises main spindle box, main shaft, spindle motor, column, elevating mechanism, lifting stepper motor, lubricated etc.The lifting that the main spindle box of milling head is installed is to complete by stepper motor, and stepper motor links together by shaft coupling and lifting ball-screw, and feed screw nut and main spindle box body are bound up, and drive thus main spindle box body and do elevating movement.As everyone knows; the main spindle box of milling machine is heavier; when milling head moves upward, need enough large lifting force, so the power of stepper motor is very large; and in the milling head lifting process to the wearing and tearing severity of the parts such as feed screw nut; affect machining accuracy, need to frequently change, also increased cost; moreover after shutting down, milling head easily produces downslide, extremely unstable.
Summary of the invention
The purpose of this utility model is to provide a kind of spindle motor power that reduces, and reduces the parts wear degree, keeps the main spindle box lifting balance weight mechanism of CNC milling machine stably.
For achieving the above object, the utility model has adopted following technical scheme: a kind of balance weight mechanism of CNC milling machine, comprise the balancing weight and the pulley that are arranged on milling machine upright, described balancing weight and main spindle box lay respectively at the both sides of pulley, the axis along continuous straight runs of pulley is arranged, balancing weight and main spindle box be all lower than pulley place height, and lifting rope passes the affixed balancing weight of one end after pulley, the affixed main spindle box of the other end.
Owing to adopting above technical scheme, the weight-matched of balancing weight and main spindle box, when motor drive shaft case moved upward, balancing weight moved downward under Action of Gravity Field, and this gravity is the equal of to provide a pulling force made progress to main spindle box, thereby reduce the driving force that stepper motor provides, reduce power of motor, also reduced the degree of wear to parts such as feed screw nuts simultaneously, elongated component service life, improve machining accuracy, reduce costs.And after having avoided shutting down, milling head produces the downslide phenomenon, improves lathe stability.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of balance weight mechanism of CNC milling machine, comprise the balancing weight 11 and the pulley 13 that are arranged on milling machine upright 10, described balancing weight 11 and main spindle box 20 lay respectively at the both sides of pulley 13, the axis along continuous straight runs of pulley 13 is arranged, balancing weight 11 and main spindle box 20 are all lower than pulley 13 place height, and lifting rope 12 is walked around the affixed balancing weight 11 of the rear one end of pulley 13, the affixed main spindle box 20 of the other end.The weight-matched of balancing weight 11 and main spindle box 20, when stepper motor drive shaft case 20 moves upward, balancing weight 11 moves downward under Action of Gravity Field, this gravity is the equal of to provide a pulling force made progress to main spindle box 20, so stepper motor only need to provide a less driving force just can meet instructions for use, has reduced power of motor, also reduced simultaneously the degree of wear to parts such as feed screw nuts, elongated component service life, improve machining accuracy, reduce costs.And after having avoided shutting down, milling head produces the downslide phenomenon, improves lathe stability.In the utility model, only need to adopt lower-powered stepper motor both can meet instructions for use, motor cost is also low.
Described balancing weight 11 middle parts offer the through hole that axis is vertically arranged, the middle part of column 10 is installed with vertically the guide post 14 of arranging, this guide post 14 is positioned at the through hole of balancing weight 11 and both form hole axle cooperation.Balancing weight 11 and guide post 14 matched in clearance, guide post 14 plays guide effect, and balancing weight 11 slides up and down along guide post 14, realizes the steady lifting of main spindle box 20.
Described pulley 13 is provided with four altogether, four orthogonal layouts of pulley 13, and the axis of described four pulleys 13 is parallel to each other and is positioned at sustained height.The in the same size of four pulleys 13, be fixed pulley.Be positioned at the same side two pulley 13a dead in line and be positioned at balancing weight 11 directly over, be positioned at opposite side two pulley 13b dead in line and be positioned at main spindle box lifting rope 12 fixing points directly over, namely the lifting rope 12 between the lifting rope 12 between pulley 13a and balancing weight 11, pulley 13b and main spindle box 20 is vertically placed, thereby guarantee the smooth sliding of lifting rope 12, guarantee the steady lifting of main spindle box.
On described column 10, offer rectangular enclosure, described guide post 14 and balancing weight 11 all are positioned at this cavity, and are provided with gap between the cavity inner wall of balancing weight 11 and column 10.Prevent that effectively balancing weight 11 and the cavity inner wall of column 10 from coming in contact.
The upper center of described balancing weight 11 is provided with suspension ring 15, and lifting rope 12 is fixed on suspension ring 15.The setting of suspension ring 15 is for convenient fixedly lifting rope 12, suspension ring 15 can adopt engage thread to be fixed on balancing weight 11, lifting rope 12 in the utility model adopts steel wire ropes, spaced two of suspension ring 15, these two suspension ring 15 be positioned on same line and with two corresponding layouts of pulley 13a.
Claims (5)
1. the balance weight mechanism of a CNC milling machine, it is characterized in that: comprise the balancing weight (11) and the pulley (13) that are arranged on milling machine upright (10), described balancing weight (11) and main spindle box (20) lay respectively at the both sides of pulley (13), the axis along continuous straight runs of pulley (13) is arranged, balancing weight (11) and main spindle box (20) are all lower than pulley (13) place height, lifting rope (12) is walked around the rear affixed balancing weight of one end (11) of pulley (13), the affixed main spindle box of the other end (20).
2. the balance weight mechanism of CNC milling machine according to claim 1, it is characterized in that: described balancing weight (11) middle part offers the through hole that axis is vertically arranged, the middle part of column (10) is installed with vertically the guide post (14) of arranging, this guide post (14) is positioned at the through hole of balancing weight (11) and both form hole axle cooperation.
3. the balance weight mechanism of CNC milling machine according to claim 1, it is characterized in that: described pulley (13) is provided with four altogether, the orthogonal layout of four pulleys (13), the axis of described four pulleys (13) is parallel to each other and is positioned at sustained height.
4. the balance weight mechanism of CNC milling machine according to claim 2, it is characterized in that: described column offers rectangular enclosure on (10), described guide post (14) and balancing weight (11) all are positioned at this cavity, and are provided with gap between the cavity inner wall of balancing weight (11) and column (10).
5. the balance weight mechanism of CNC milling machine according to claim 4, it is characterized in that: the upper end of described balancing weight (11) is provided with suspension ring (15), and lifting rope (12) is fixed on suspension ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203564191U CN203304664U (en) | 2013-06-20 | 2013-06-20 | Weight balancing mechanism of numerical-controlled milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203564191U CN203304664U (en) | 2013-06-20 | 2013-06-20 | Weight balancing mechanism of numerical-controlled milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203304664U true CN203304664U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203564191U Expired - Lifetime CN203304664U (en) | 2013-06-20 | 2013-06-20 | Weight balancing mechanism of numerical-controlled milling machine |
Country Status (1)
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| CN (1) | CN203304664U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493507A (en) * | 2014-12-19 | 2015-04-08 | 昆山华都精工机械设备有限公司 | Floor-type horizontal machining center |
| CN107755762A (en) * | 2017-10-27 | 2018-03-06 | 中原工学院 | A kind of more than half diameter and arc surface metal works processing unit (plant) and its processing method |
-
2013
- 2013-06-20 CN CN2013203564191U patent/CN203304664U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493507A (en) * | 2014-12-19 | 2015-04-08 | 昆山华都精工机械设备有限公司 | Floor-type horizontal machining center |
| CN107755762A (en) * | 2017-10-27 | 2018-03-06 | 中原工学院 | A kind of more than half diameter and arc surface metal works processing unit (plant) and its processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 7, 2023, the expiration and termination of the 39 volume 2702 patent Number: 27-02 Volume: 39 |