CN200960620Y - Feeding mechanism for digital control gear milling machine - Google Patents

Feeding mechanism for digital control gear milling machine Download PDF

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Publication number
CN200960620Y
CN200960620Y CN 200620027944 CN200620027944U CN200960620Y CN 200960620 Y CN200960620 Y CN 200960620Y CN 200620027944 CN200620027944 CN 200620027944 CN 200620027944 U CN200620027944 U CN 200620027944U CN 200960620 Y CN200960620 Y CN 200960620Y
Authority
CN
China
Prior art keywords
support
nut
drawing rod
screw nut
lead
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
Application number
CN 200620027944
Other languages
Chinese (zh)
Inventor
王国兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin No 1 Machine Tool Works
Original Assignee
Tianjin No 1 Machine Tool Works
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin No 1 Machine Tool Works filed Critical Tianjin No 1 Machine Tool Works
Priority to CN 200620027944 priority Critical patent/CN200960620Y/en
Application granted granted Critical
Publication of CN200960620Y publication Critical patent/CN200960620Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a feeding device of digit-control tooth mill, comprising a feeding box, a servo motor, an active gear connected with the servo motor, an inactive gear, a ball lead-screw and a lead-screw nut connected with the inactive gear, a nut support connected with the lead-screw nut, and a drawing rod support connected with the nut support. The drawing rod support is equipped with a drawing rod near a switch impact block and connected with the drawing rod support, the upper part of the feeding box is provided with an approach switch, and a hard limit baffle block is arranged on the feeding box and at back lower side of the drawing rod. The utility model has the advantages that when electric limit control fails, the drawing rod support first impacts the hard limit baffle block, to protect the lead-screw nut of the ball lead-screw and confirm the high precision of the ball lead-screw couple, and make the drawing rod support and the hard limit baffle block at same state. The utility model has reliable operation, low cost and easy maintenance.

Description

The feed mechanism that is used for numerical control gear milling machine
Technical field
The utility model belongs to Digit Control Machine Tool and makes the field, particularly relates to the feed mechanism that is used for numerical control gear milling machine of a kind of simple in structure, low cost of manufacture and reliable operation.
Background technology
Numerical control gear milling machine is a kind of common gear machining apparatus, and it is made up of three numerical control axles, two rotating shafts and a linear axis, and each numerical control axle of mill teeth machine all directly has influence on the precision of last processing parts.Wherein the motion of linear axis is when servomotor rotates, and drives moving of feed screw nut by gear drive, and by the fixedlying connected of nut support and rob support, the extension of drive pull bar horizontal direction realizes again.Spacing control before and after linear axis is provided with, it has determined the processing specification of whole mill teeth machine, but only establish electric spacing control in the feed mechanism of present known numerical control gear milling machine, when electric spacing control in a single day malfunctioning, feed screw nut will bump with the end face of gear, make this height of ball screw assembly, closely the drive disk assembly precision reduce greatly, cause having influence at last the machining accuracy of part; In addition, gear is in rotation status when bumping, another feed screw nut is in mobile status, cause feed screw nut and gear to grind mutually extremely owing to motion state is different, so not only make troubles to the maintenance personal, and when both pried open, ball-screw was badly damaged and can not have re-used, and causes great waste thus.
Summary of the invention
The utility model provides the feed mechanism that is used for numerical control gear milling machine of a kind of simple in structure, low cost of manufacture and reliable operation for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The feed mechanism that is used for numerical control gear milling machine, comprise the feeding casing, be installed in the servomotor on the feeding casing, the driving gear that is connected with servomotor, the ball-screw that is connected by keyboard with the driven gear of driving gear engagement, driven gear and feed screw nut, the nut support that is connected with feed screw nut, the rob support that is connected with the nut support, on rob support, be equipped with near switch collision block, the pull bar that is connected with rob support, feeding casing top and be provided with, it is characterized in that near switch: the feeding casing upper behind pull bar downside be fixed with hard positive stop.
The utility model can also adopt following technical measures:
Be provided with the gap of 2-2.5mm between the left side of described hard positive stop and the feed screw nut side end face, promptly be provided with the gap of 2-2.5mm between feed screw nut and the driven gear.
Advantage and the good effect that the utlity model has are: because the utility model feeding casing is provided with hard positive stop, when electric spacing control is malfunctioning in operation is carried out, make rob support produce bump with this hard positive stop earlier, so not only can protect the feed screw nut of ball-screw not to be destroyed, guarantee the high accuracy of ball screw assembly; Can make rob support identical with hard positive stop state of living in again, then after the mill teeth machine was switched on again, whole lathe also can continue operate as normal, and the precision of whole lathe is not destroyed.The utility model is simple in structure, reliable operation, low cost of manufacture, and provides convenience for maintenance personal's maintenance.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the F-F cutaway view Amplified image of Fig. 2.
Among the figure: 1, servomotor; 2, driving gear; 3, ball-screw; 4, feed screw nut; 5, nut support; 6, rob support; 7, hard positive stop; 8, near the switch collision block; 9, near switch; 10, feeding casing; 11, pull bar; 12, driven gear.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-Fig. 3, the feed mechanism that is used for numerical control gear milling machine, comprise feeding casing 10, be installed in the servomotor 1 on the feeding casing, the driving gear 2 that is connected with servomotor, driven gear 12 with the driving gear engagement, ball-screw 3 and feed screw nut 4 that driven gear connects by keyboard, the nut support 5 that feed screw nut 4 connects by screw, the rob support 6 that is connected with the nut support, on rob support 6, be equipped with near switch collision block 8, the pull bar 11 that is connected by screw with rob support 6, feeding casing top is provided with near switch 9, and the back downside that is positioned at pull bar 11 on feeding casing 10 is fixed with hard positive stop 7.Be provided with the gap of 2-2.5mm between the left side of described hard positive stop 7 and feed screw nut 4 its right end face, promptly be provided with the gap of 2-2.5mm between feed screw nut 4 and the driven gear 12, the setting height(from bottom) of hard positive stop 7 needs when assembling according to the actual conditions adjustment.
Operation principle of the present utility model is:
After 1 energising of mill teeth machine servomotor, make ball-screw 3 and feed screw nut 4 do moving of horizontal direction by driving gear 2 and driven gear 12 transmissions, this moment, feed screw nut 4 drive pull bars 11 were elastic, thereby the Z that has realized pull bar is to moving, the front and back stroke of pull bar be by be installed on the feeding casing near switch 8 be installed in sensor block 9 on the rob support and interact and finish.When electrical control spacing when malfunctioning; can collide with hard positive stop 7 earlier by rob support 6; owing to be provided with the gap of 2-2.5mm between feed screw nut 4 and the hard positive stop; it is the gap that is provided with 2-2.5mm between feed screw nut 4 and the driven gear 12; so promptly protect ball-screw can not receive damage; again can be when switching on again, after returning zero-bit, each numerical control axle of whole lathe continues operate as normal.

Claims (2)

1. feed mechanism that is used for numerical control gear milling machine, comprise the feeding casing, be installed in the servomotor on the feeding casing, the driving gear that is connected with servomotor, driven gear with the driving gear engagement, ball-screw and feed screw nut that driven gear connects by keyboard, the nut support that is connected with feed screw nut, the rob support that is connected with the nut support, on rob support, be equipped with near the switch collision block, the pull bar that is connected with rob support, be provided with near switch on feeding casing top, it is characterized in that: the feeding casing upper behind pull bar downside be fixed with hard positive stop.
2. the feed mechanism that is used for numerical control gear milling machine according to claim 1, it is characterized in that: be provided with the gap of 2-2.5mm between the left side of described hard positive stop and the feed screw nut its right end face, promptly be provided with the gap of 2-2.5mm between feed screw nut and the driven gear.
CN 200620027944 2006-11-01 2006-11-01 Feeding mechanism for digital control gear milling machine Expired - Fee Related CN200960620Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620027944 CN200960620Y (en) 2006-11-01 2006-11-01 Feeding mechanism for digital control gear milling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620027944 CN200960620Y (en) 2006-11-01 2006-11-01 Feeding mechanism for digital control gear milling machine

Publications (1)

Publication Number Publication Date
CN200960620Y true CN200960620Y (en) 2007-10-17

Family

ID=38797129

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620027944 Expired - Fee Related CN200960620Y (en) 2006-11-01 2006-11-01 Feeding mechanism for digital control gear milling machine

Country Status (1)

Country Link
CN (1) CN200960620Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106181531A (en) * 2016-08-23 2016-12-07 安徽池州家用机床股份有限公司 A kind of lathe traverse feed stopping means
CN107473095A (en) * 2017-09-26 2017-12-15 哈尔滨工程大学 A kind of electronic wave Active Compensation, which is stepped on, multiplies system
CN115502485A (en) * 2022-10-20 2022-12-23 天津第一机床有限公司 Feeding ball screw directly connected with tool spindle and impact-resistant adjusting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106181531A (en) * 2016-08-23 2016-12-07 安徽池州家用机床股份有限公司 A kind of lathe traverse feed stopping means
CN107473095A (en) * 2017-09-26 2017-12-15 哈尔滨工程大学 A kind of electronic wave Active Compensation, which is stepped on, multiplies system
CN115502485A (en) * 2022-10-20 2022-12-23 天津第一机床有限公司 Feeding ball screw directly connected with tool spindle and impact-resistant adjusting device

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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

Granted publication date: 20071017

Termination date: 20151101

EXPY Termination of patent right or utility model