CN203401361U - Numerically-controlled grinding machine for screw tap - Google Patents
Numerically-controlled grinding machine for screw tap Download PDFInfo
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- CN203401361U CN203401361U CN201320495206.7U CN201320495206U CN203401361U CN 203401361 U CN203401361 U CN 203401361U CN 201320495206 U CN201320495206 U CN 201320495206U CN 203401361 U CN203401361 U CN 203401361U
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- screw tap
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- guide rail
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Abstract
The utility model provides a numerically-controlled grinding machine for a screw tap, and belongs to the technical field of machines. The numerically-controlled grinding machine solves the problems that the screw tap is difficult to grind through an existing screw tap forming milling cutter and high in manufacturing cost. The numerically-controlled grinding machine comprises a base, a worktable and a head frame, wherein the worktable is arranged on the base, the head frame is arranged on the worktable, and a main shaft is arranged on the upper portion of the head frame. The worktable is further provided with an ejection pin unit, wherein the ejection pin unit and the main shaft are oppositely arranged, and the ejection pin unit is driven by an air cylinder. The base is provided with an arc-shaped guide rail, the arc-shaped guide rail is provided with a stand column swinging along the arc-shaped guide rail, the stand column is provided with a grinding head unit capable of vertically lifting, the grinding head unit is provided with a grinding wheel used for machining a workpiece, and the base is further provided with a fixing structure, wherein the stand column can be fixed through the fixing structure when rotating to a proper position. The numerically-controlled grinding machine has the advantages of being wide in application range, high in automation degree and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of screw tap numerically control grinder, particularly a kind of screw tap numerically control grinder for grinding groove of screw tap.
Background technology
Screw tap is the main cutting tools for cutting of processing small-medium size internal thread, and particularly for undersized internal thread, screw tap is almost unique process tool, it is simple in structure, easy to use, manually actuatedly also can on lathe, work, application is very extensive in process of production.Screw tap is divided into straight trough screw tap, spiral fluted tap and spiral pointed tap according to shape difference, and spiral fluted tap is because have good chip removal performance and centering, and process velocity is high, and machining accuracy is high, and work in-process is processing blind hole internal thread application more and more extensive in the heart.In tapping process, because screw tap almost makes to be embedded in workpiece to cut, the machining load of its per tooth is all larger than other cutters, and screw tap is very large along the contact-making surface of screw thread and workpiece, during screw cutting, it must hold and scrap fallaway, and in processing during without the material of mechanical performance, in order to guarantee crudy and working (machining) efficiency, need to change several shapes, particularly anterior angle and the recessed amount of screw tap cutting tip, namely the shape of groove.By change groove shape, can effectively improve the stock-removing efficiency of screw tap, improve and hold bits chip removal ability, reduce the situation that collapses tooth and fracture.
In traditional screw tap is produced, the groove of screw tap mainly adopts the method for plunge grinding and form milling.The machining accuracy of form milling be subject to milling cutter Accuracy and also processing roughness low, form cutter reconditioning difficulty, cost of manufacture is high, is applicable to the large batch of traditional screw tap of the low precision of processing, is difficult to adapt to the processing needs that present small lot has specific (special) requirements screw tap.And existing plunge grinding is mainly used in grinding straight trough screw tap, fewer for the lathe of helicla flute grinding.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of applied widely, screw tap numerically control grinder that automaticity is high.
The purpose of this utility model can realize by following technical proposal:
This screw tap numerically control grinder, comprise base, be located at workbench on base and be located at the headstock that its top on workbench has main shaft, on described workbench, be also provided with the thimble unit by air cylinder driven being oppositely arranged with main shaft, it is characterized in that, described base is provided with arc-shaped guide rail, described arc-shaped guide rail is provided with the column swinging along this arc-shaped guide rail, described column is provided with bistrique unit that can vertical lift, described bistrique unit is provided with the emery wheel for workpiece is processed, on described base, be also provided with and after column turns to correct position, can make the fixing fixed structure of this column.
In above-mentioned screw tap numerically control grinder, between described column and arc-shaped guide rail, be furnished with 3-4 rolling bearing, described rolling bearing is matched with in arc-shaped guide rail.The arc-shaped guide rail arranging accurately swings column.
In above-mentioned screw tap numerically control grinder, on described column, by high accuracy, preload rolling linear guide and be connected with a slide, described slide is connected with AC servo motor with plum-blossom type elastic coupling by preloading ball-screw, and described slide is provided with the dresser being positioned at directly over emery wheel.
Bistrique unit is for vertical movement on rolling linear guide under the driving of servomotor, motor drives trimming wheel by Timing Belt, there is better rigidity and higher transmission accuracy, during trimming wheel, by realizing reconditioning with bistrique interlock motion, go out difform emery wheel.Workbench, can be along the horizontal and vertical movement of base under the driving of AC servo motor, and column can be done gyration around grinding points, adapts to the adjustment of different helical angles.Thimble unit, when work, withstands the center hole of screw tap end with certain pressure, have high flexibility and high rigidity, can, according to Workpiece length, adjust the position of cylinder.The headstock adopts turbine and worm to be connected with AC servo motor, realizes the rotation of main shaft, and the high good rigidly of running accuracy, and headstock employing high precision numerical control control calibration, reach the effect of high precision calibration.
In above-mentioned screw tap numerically control grinder, described fixed structure comprises some pressing plates of being located on base, some described pressing plates, along the edge setting of column, have on described pressing plate for compressing the flanging of column, and described pressing plate is bolted on base.
In above-mentioned screw tap numerically control grinder, the front end of described main shaft is provided with adapter sleeve, is provided with screw tap square toes positioning sleeve in described adapter sleeve, in described positioning sleeve, is provided with charging ram.According to screw tap square toes sizes, select suitable positioning sleeve and charging ram, during for grinding, drive screw tap to carry out calibration grinding, and screw tap is released during blanking after grinding.
In above-mentioned screw tap numerically control grinder, on described base, be also provided with self-feeding unit and self-emptying unit.
Dresser can move forward and backward under SERVO CONTROL, and bistrique can move up and down, and during crushing, dresser and grinding spindle interlock motion, realize the object of finishing difformity emery wheel, and can realize emery wheel and revise online.Column is connected with lathe bed base by arc-shaped guide rail, can do gyration around grinding points, thereby realizes the object of different spiral angles, when the anglec of rotation is 0 °, also can carry out the grinding of straight trough screw tap.
Screw tap semi-finished product are sent into from self-feeding unit, by the headstock, clamped, thimble unit carries out auxiliary clamp, workbench can move at vertical and horizontal, during grinding, by the headstock, drive workpiece to rotate and the horizontal movement of workbench, make emery wheel form spiral path at surface of the work, thereby reach the function of grinding spiral groove.After grinding, main shaft and thimble unit unclamp, and the workpiece machining automatically drops on the conveyer belt of self-emptying unit and transports lathe.
Compared with prior art, this screw tap numerically control grinder has the following advantages:
Dresser can be realized online correction and compensation, column and can rotate and realize grinding different screw and spiral angles, be equipped with that automatic charging automated exchanged cutter and automatic blanking can be realized in self-feeding unit and self-emptying unit, clamping workpiece adopts thimble mode clamping to improve clamping precision and clamping efficiency around grinding center together with bistrique unit.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of preferred embodiment of providing of the utility model.
In figure, 1, base; 2, workbench; 3, the headstock; 4, thimble unit; 5, arc-shaped guide rail; 6, column; 7, bistrique unit; 8, dresser; 9, pressing plate; 10, self-feeding unit; 11, self-emptying unit.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Screw tap numerically control grinder as shown in Figure 1, comprises base 1, is located at the workbench 2 on base 1 and is located at the headstock 3 that its top on workbench 2 has main shaft, is also provided with the thimble unit 4 by air cylinder driven being oppositely arranged with main shaft on workbench 2.As shown in Figure 1, on base 1, be provided with arc-shaped guide rail 5, arc-shaped guide rail 5 is provided with the column 6 swinging along this arc-shaped guide rail 5, column 6 is provided with bistrique unit 7 that can vertical lift, bistrique unit 7 is provided with the emery wheel for workpiece is processed, and is also provided with and after column 6 turns to correct position, can makes the fixing fixed structure of this column 6 on base 1.
In the present embodiment, between column 6 and arc-shaped guide rail 5, be furnished with 3-4 rolling bearing.
As shown in Figure 1, preload rolling linear guide be connected with a slide on column 6 by high accuracy, slide is connected with AC servo motor with plum-blossom type elastic coupling by preloading ball-screw, and slide is provided with the dresser 8 being positioned at directly over emery wheel.
Bistrique unit 7 is for vertical movement on rolling linear guide under the driving of servomotor, motor drives trimming wheel by Timing Belt, there is better rigidity and higher transmission accuracy, during trimming wheel, by realizing reconditioning with bistrique interlock motion, go out difform emery wheel.Workbench 2, can be along the horizontal and vertical movement of base 1 under the driving of AC servo motor, and column 6 can be done gyration around grinding points, adapts to the adjustment of different helical angles.Thimble unit 4, when work, withstands the center hole of screw tap end with certain pressure, have high flexibility and high rigidity, can, according to Workpiece length, adjust the position of cylinder.The headstock 3 adopts turbine and worm to be connected with AC servo motor, realizes the rotation of main shaft, and the high good rigidly of running accuracy, and the headstock 3 employing high precision numerical controls control calibration, reach the effect of high precision calibration.
Concrete, as shown in Figure 1, fixed structure comprises some pressing plates 9 of being located on base 1, and some pressing plates 9, along the edge setting of column 6, have on pressing plate 9 for compressing the flanging of column 6, and pressing plate 9 is bolted on base 1.
In the present embodiment, at the front end of main shaft, be provided with adapter sleeve, in adapter sleeve, be provided with screw tap square toes positioning sleeve, in positioning sleeve, be provided with charging ram, according to screw tap square toes sizes, select suitable positioning sleeve and charging ram, during for grinding, drive screw tap to carry out calibration grinding, and screw tap is released during blanking after grinding.
As shown in Figure 1, on base 1, be also provided with self-feeding unit 10 and self-emptying unit 11.
Screw tap semi-finished product are sent into from self-feeding unit 10, by the headstock 3, clamped, thimble unit 4 carries out auxiliary clamp, workbench 2 can move at vertical and horizontal, during grinding, by the headstock 3, drive workpiece to rotate and the horizontal movement of workbench 2, make emery wheel form spiral path at surface of the work, thereby reach the function of grinding spiral groove.After grinding, main shaft and thimble unit 4 unclamp, and the workpiece machining automatically drops on the conveyer belt of self-emptying unit 11 and transports lathe.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. a screw tap numerically control grinder, comprise base (1), be located at the workbench (2) on base (1) and be located at the headstock (3) that its top on workbench (2) has main shaft, on described workbench (2), be also provided with the thimble unit (4) by air cylinder driven being oppositely arranged with main shaft, it is characterized in that, described base (1) is provided with arc-shaped guide rail (5), described arc-shaped guide rail (5) is provided with the column (6) swinging along this arc-shaped guide rail (5), described column (6) is provided with bistrique unit (7) that can vertical lift, described bistrique unit (7) is provided with the emery wheel for workpiece is processed, on described base (1), be also provided with and after column (6) turns to correct position, can make the fixing fixed structure of this column (6).
2. screw tap numerically control grinder according to claim 1, is characterized in that, between described column (6) and arc-shaped guide rail (5), is furnished with 3-4 rolling bearing, and described rolling bearing is matched with in arc-shaped guide rail (5).
3. screw tap numerically control grinder according to claim 1, it is characterized in that, above by high accuracy, preload rolling linear guide is connected with a slide to described column (6), described slide is connected with AC servo motor with plum-blossom type elastic coupling by preloading ball-screw, and described slide is provided with the dresser (8) being positioned at directly over emery wheel.
4. screw tap numerically control grinder according to claim 1 and 2, it is characterized in that, described fixed structure comprises some pressing plates (9) of being located on base (1), some described pressing plates (9) are along the edge setting of column (6), on described pressing plate (9), have for compressing the flanging of column (6), described pressing plate (9) is bolted on base (1).
5. screw tap numerically control grinder according to claim 1, is characterized in that, the front end of described main shaft is provided with adapter sleeve, is provided with screw tap square toes positioning sleeve in described adapter sleeve, in described positioning sleeve, is provided with charging ram.
6. screw tap numerically control grinder according to claim 1, is characterized in that, is also provided with self-feeding unit (10) and self-emptying unit (11) on described base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320495206.7U CN203401361U (en) | 2013-08-14 | 2013-08-14 | Numerically-controlled grinding machine for screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320495206.7U CN203401361U (en) | 2013-08-14 | 2013-08-14 | Numerically-controlled grinding machine for screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203401361U true CN203401361U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320495206.7U Expired - Lifetime CN203401361U (en) | 2013-08-14 | 2013-08-14 | Numerically-controlled grinding machine for screw tap |
Country Status (1)
| Country | Link |
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| CN (1) | CN203401361U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924162A (en) * | 2015-05-15 | 2015-09-23 | 成都大学 | One-time clamping forming tap grinding machine |
| CN109773623A (en) * | 2018-07-06 | 2019-05-21 | 柯文光 | Arc shaped blade equipment for grinding |
-
2013
- 2013-08-14 CN CN201320495206.7U patent/CN203401361U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924162A (en) * | 2015-05-15 | 2015-09-23 | 成都大学 | One-time clamping forming tap grinding machine |
| CN109773623A (en) * | 2018-07-06 | 2019-05-21 | 柯文光 | Arc shaped blade equipment for grinding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317502 Tangxia Industrial Zone, Xinhe Town, Wenling City, Taizhou City, Zhejiang Province Patentee after: Beiping machine tool (Zhejiang) Co.,Ltd. Address before: 317502 Tangxia Industrial Zone, Xinhe Town, Wenling City, Taizhou City, Zhejiang Province Patentee before: TAIZHOU BEIPING MACHINE TOOL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |