CN102500841A - Automatic threading machine of feeding steel pipe of screw brake shoe - Google Patents
Automatic threading machine of feeding steel pipe of screw brake shoe Download PDFInfo
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- CN102500841A CN102500841A CN2011103407730A CN201110340773A CN102500841A CN 102500841 A CN102500841 A CN 102500841A CN 2011103407730 A CN2011103407730 A CN 2011103407730A CN 201110340773 A CN201110340773 A CN 201110340773A CN 102500841 A CN102500841 A CN 102500841A
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- brake shoe
- main spindle
- threading machine
- screw
- steel pipe
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Abstract
The invention discloses an automatic threading machine of a feeding steel pipe of a screw brake shoe, belonging to thread machining equipment, and particularly relates to a threading machine capable of driving a threading head to move forwards by using the screw brake shoe. The automatic threading machine of the feeding steel pipe of the screw brake shoe comprises a main spindle box assembly which is provided with a power device and can move on a horizontal sliding rail of a machine body. The front end of a main spindle box is provided with a die holder and a die opening and closing ring. The automatic threading machine is characterized in that: a screw assembly formed by a screw shaft, a bearing and a bracket is fixedly arranged at the outer side of the main spindle box; the tail end of a main spindle is provided with a driving chain wheel which is connected with a driven chain wheel at the tail end of the screw shaft by a chain; a brake shoe and a brake shoe control device for controlling the brake shoe to be engaged with and released from the screw shaft are arranged under the screw shaft; and the brake shoe control device is mounted on the machine body. Since the main spindle box is driven by a screw brake shoe to feed, the feeding speed is consistent to a rotating speed of the main spindle; and therefore, the problem that the feeding speed is not consistent to the rotating speed of the main spindle caused by the influence on feeding in a hydraulic pushing manner from the pressure and the temperature of hydraulic oil is avoided; and the product quality is improved.
Description
Technical field
The invention belongs to thread processing equipment, particularly use the leading screw brake shoe to drive the die head threading machine that the mantle fiber head advances.
Background technology
Some short steel pipes two ends of playing the connection effect all need process the screw thread that connects usefulness; And require the two ends screw thread to have concentricity preferably, the method for processing the two ends screw thread usually is that two ends process respectively, promptly process an end after; With the steel pipe clamping again reprocessing other end that overturns; This method working (machining) efficiency is low, labour intensity is big, and the axis angle of two head threads is not easy substandard requirement, and the quality product rate is low.Applicant's the ZL of patent formerly 201020193817.2 discloses the automatic die head threading machine of a kind of steel pipe double end; It is characterized in that: feed mechanism and raw material clamping device are housed on the center line on T shape chassis and the bracing frame; The center line bilateral symmetry is equipped with the main spindle box that the mantle fiber screw die is installed, and is fixing the line slideway slide block that can on line slideway, slide on the main spindle box backing plate of main spindle box bottom, is fixed on the main spindle box oil cylinder of advancing is housed on the oil cylinder installing rack on the bracing frame; Owing to adopted automatic charging and once clamped two ends machining screw simultaneously; Realized process automation, promptly guaranteed product two ends screw threads axis angle reach standard-required, can raise the efficiency again; Realize a people's two-shipper or a multimachine, reduce working strength of workers.But because this equipment is when the machining screw feeding, by hydraulic feed: the cutter F.F. becomes the worker near workpiece and advances (slow-motion) machining screw.Must adjust the hydraulic pressure deceleration valve when speed of mainshaft changes, and slight the variation take place in the Hydraulic Elements precision of hydraulic system, hydraulic fluid temperature etc., all can influence the thread quality of processing.
Summary of the invention
Use the stable inadequately deficiency of hydraulic cylinder feed in order to overcome existing die head threading machine; The present invention provides a kind of leading screw brake shoe feeding steel pipe automatic die head threading machine; The automatic die head threading machine of this leading screw brake shoe feeding steel pipe uses leading screw brake shoe feed mechanism; Substitute the hydraulic feed mode, realized that main axis rotation and axial feed keep synchronously, further improve the automatic die head threading machine machining screw of steel pipe quality, reduce waste product.
The technical solution adopted for the present invention to solve the technical problems is: the automatic die head threading machine of a kind of leading screw brake shoe feeding steel pipe; Comprise the main spindle box assembly that has power set that can on the lathe bed horizontal slide rail, move; The main spindle box front end is equipped with die-head and screw die folding ring; It is characterized in that: the leading screw assembly of being made up of lead screw shaft, bearing, support is being fixed in the main spindle box outside; The main shaft tail end is equipped with drive sprocket and is connected with the driven sprocket that is installed in the lead screw shaft tail end through chain, and the brake shoe control device of brake shoe and control brake shoe and lead screw shaft engagement disengaging is equipped with in the lead screw shaft below, and the brake shoe control device is installed on the lathe bed.
Described brake shoe control device comprises the fixing brake shoe axis of guide in bed, and the tail end of the horizontal segment of L type brake shoe seat is equipped with the fairlead that can slide up and down along the axis of guide, and the brake shoe cylinder that is fixed on the lathe bed is equipped with in the below of L type brake shoe seat horizontal segment.
The control appliance of described brake shoe cylinder is a magnetic valve.
The gear ratio of described drive sprocket and driven sprocket is 1: 2.
Operation principle of the present invention: utilize main axis rotation to drive the leading screw rotation; Main axis rotation 1 is changeed, and leading screw rotation 1/2 is changeed, and hydraulic pressure is assisted when promoting cutter fast near workpiece; Hydraulic pressure stops; Brake shoe and lead screw shaft engagement under the promotion of brake shoe cylinder is carried out machining screw by leading screw, brake shoe cooperation, guarantees that the tool feeding amount is consistent with the thread pitch of processing.
The present invention increases leading screw, shoe plate assembly on original die head threading machine, and is controlled automatically by PLC, must manually-operated.
Improve back processing action order: the feeding of main spindle box drives by the fast feed of hydraulic oil cylinder driving main spindle box; When the F.F. release; Magnetic valve is opened the air cylinder driven brake shoe and is risen; Make the engagement of brake shoe and lead screw shaft, the main spindle box feeding changes the worker into advances, and begins to get into the mantle fiber duty after idle running 2～3 button pitch; Mantle fiber is accomplished, and when the folding ring was opened die-head, the brake shoe cylinder fell; Brake shoe and lead screw shaft are broken away from; Be installed under the extension spring effect between the lathe bed of main spindle box and main spindle box rear end, die-head and workpiece hightail, and the jig slide plate is retreated; The switching-over of main spindle box oil cylinder, the driving main shaft case is retreated to original position.
The invention has the beneficial effects as follows owing to adopt the feeding of leading screw brake shoe mechanism urges main spindle box; Make feed speed consistent, avoided original hydraulic drive feeding to receive hydraulic fluid pressure temperature effect to cause feeding rate and the inharmonic problem of the speed of mainshaft, reduced the adjustment difficulty of equipment with the main axis rotation speed coordination; Need not to worry that oil pressure changes to cause to the pipe fitting screw thread reins in a phenomenon; And a waste product of reining in that does not match and cause because of the speed of mainshaft and pitch, and hydraulic pressure changes to what the pipe fitting screw thread caused and reins in a phenomenon, stablizes and improves the quality of products; Per tour reduces adjustment test-run a machine spare 2-3 spare, and qualification rate improves 0.5-1%.
Description of drawings
Fig. 1 is the front view of structure of the present invention,
Fig. 2 is the left view of structure of the present invention,
Fig. 3 is the vertical view of structure of the present invention.
Among the figure, 1. lathe bed, 2. brake shoe cylinder, the 3. brake shoe axis of guide, 4. brake shoe seat, 5. drive sprocket, 6. driven sprocket, 7. brake shoe, 8. lead screw shaft, 9. leading screw support, 10. main spindle box assembly, 11. folding rings, 12. die-heads.
The specific embodiment
The specific embodiment of the present invention is, and is as shown in the figure:
Claims (4)
1. automatic die head threading machine of leading screw brake shoe feeding steel pipe; Comprise the main spindle box assembly that has power set that can on the lathe bed horizontal slide rail, move; The main spindle box front end is equipped with die-head and screw die folding ring; It is characterized in that: the leading screw assembly of being made up of lead screw shaft, bearing, support is being fixed in the main spindle box outside; The main shaft tail end is equipped with drive sprocket and is connected with the driven sprocket that is installed in the lead screw shaft tail end through chain, and the brake shoe control device of brake shoe and control brake shoe and lead screw shaft engagement disengaging is equipped with in the lead screw shaft below, and the brake shoe control device is installed on the lathe bed.
2. the automatic die head threading machine of leading screw brake shoe feeding steel pipe according to claim 1; It is characterized in that: described brake shoe control device comprises the fixing brake shoe axis of guide in bed; The tail end of the horizontal segment of L type brake shoe seat is equipped with the fairlead that can slide up and down along the axis of guide, and the brake shoe cylinder that is fixed on the lathe bed is equipped with in the below of L type brake shoe seat horizontal segment.
3. the automatic die head threading machine of leading screw brake shoe feeding steel pipe according to claim 2, it is characterized in that: the control appliance of described brake shoe cylinder is a magnetic valve.
4. the automatic die head threading machine of leading screw brake shoe feeding steel pipe according to claim 1, it is characterized in that: the gear ratio of described drive sprocket and driven sprocket is 1: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110340773 CN102500841B (en) | 2011-11-02 | 2011-11-02 | Automatic threading machine of feeding steel pipe of screw brake shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110340773 CN102500841B (en) | 2011-11-02 | 2011-11-02 | Automatic threading machine of feeding steel pipe of screw brake shoe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102500841A true CN102500841A (en) | 2012-06-20 |
| CN102500841B CN102500841B (en) | 2013-06-05 |
Family
ID=46213006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110340773 Active CN102500841B (en) | 2011-11-02 | 2011-11-02 | Automatic threading machine of feeding steel pipe of screw brake shoe |
Country Status (1)
| Country | Link |
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| CN (1) | CN102500841B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681927A (en) * | 2019-08-28 | 2020-01-14 | 金华华鼎科技有限公司 | Full-automatic mantle fiber machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU442043A1 (en) * | 1973-01-16 | 1974-09-05 | Предприятие П/Я В-2116 | Rotor for machining blanks |
| JP3387339B2 (en) * | 1996-12-27 | 2003-03-17 | 住友金属工業株式会社 | Threading machine |
| CN2855598Y (en) * | 2006-01-18 | 2007-01-10 | 曹华兴 | Vertical lathe |
| JP2008279540A (en) * | 2007-05-10 | 2008-11-20 | Jtekt Corp | Method and device for grinding thread groove |
| CN201702475U (en) * | 2010-05-18 | 2011-01-12 | 济南玫德铸造有限公司 | Automatic two-headed steel tube threading machine |
| CN201997818U (en) * | 2010-12-17 | 2011-10-05 | 雷益红 | Ball-screw-transmission automatic knife feeder of threading machine |
| CN202317312U (en) * | 2011-11-02 | 2012-07-11 | 济南玛钢钢管制造有限公司 | Lead screw brake shoe feed automatic threading machine for steel tubes |
-
2011
- 2011-11-02 CN CN 201110340773 patent/CN102500841B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU442043A1 (en) * | 1973-01-16 | 1974-09-05 | Предприятие П/Я В-2116 | Rotor for machining blanks |
| JP3387339B2 (en) * | 1996-12-27 | 2003-03-17 | 住友金属工業株式会社 | Threading machine |
| CN2855598Y (en) * | 2006-01-18 | 2007-01-10 | 曹华兴 | Vertical lathe |
| JP2008279540A (en) * | 2007-05-10 | 2008-11-20 | Jtekt Corp | Method and device for grinding thread groove |
| CN201702475U (en) * | 2010-05-18 | 2011-01-12 | 济南玫德铸造有限公司 | Automatic two-headed steel tube threading machine |
| CN201997818U (en) * | 2010-12-17 | 2011-10-05 | 雷益红 | Ball-screw-transmission automatic knife feeder of threading machine |
| CN202317312U (en) * | 2011-11-02 | 2012-07-11 | 济南玛钢钢管制造有限公司 | Lead screw brake shoe feed automatic threading machine for steel tubes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681927A (en) * | 2019-08-28 | 2020-01-14 | 金华华鼎科技有限公司 | Full-automatic mantle fiber machine |
| CN110681927B (en) * | 2019-08-28 | 2023-11-10 | 合肥市贵谦信息科技有限公司 | Full-automatic threading machine |
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| Publication number | Publication date |
|---|---|
| CN102500841B (en) | 2013-06-05 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Automatic threading machine for feed steel pipe of lead screw and brake shoe Effective date of registration: 20230227 Granted publication date: 20130605 Pledgee: Qilu bank Limited by Share Ltd. Ji'nan Pingyin branch Pledgor: JINAN MALLEABLE IRON PIPE MANUFACTURING CO.,LTD. Registration number: Y2023980033633 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |