CN202753004U - Straight pull type main feed drive mechanism for stepping motor - Google Patents
Straight pull type main feed drive mechanism for stepping motor Download PDFInfo
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- CN202753004U CN202753004U CN2012204437254U CN201220443725U CN202753004U CN 202753004 U CN202753004 U CN 202753004U CN 2012204437254 U CN2012204437254 U CN 2012204437254U CN 201220443725 U CN201220443725 U CN 201220443725U CN 202753004 U CN202753004 U CN 202753004U
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- stepper motor
- harmonic speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to a straight pull type main feed drive mechanism for a stepping motor on a centerless grinding machine. The straight pull type main feed drive mechanism is characterized by comprising the stepping motor, a harmonic speed-reducing device, a ball screw, a lead screw seat, a lead screw nut and an end cover. An output shaft of the stepping motor is connected with the harmonic speed-reducing device, the stepping motor inputs torque to the harmonic speed-reducing device, an output component of the harmonic speed-reducing device is connected with the ball screw, the ball screw is supported and positioned in the lead screw seat through a bearing assembly, the lead screw seat is fixed on a bed, the harmonic speed-reducing device drives the ball screw to rotate, and the lead screw nut in threaded transmission match with the ball screw is assembled on the ball screw. The lead screw nut is fixedly connected with the end cover, the end cover is fixedly connected with a sliding plate, and the ball screw drives the lead screw nut and the sliding plate to perform accurate linear motion when rotating. The straight pull type main feed drive mechanism is simple and compact in structure, convenient to process and manufacture, good in rigidity, high in transmission precision and precision retainability, long in service life and stable in performance.
Description
Technical field
The utility model relates to the grinding machine equipment technical field, specifically a kind of stepper motor stright-pulling type master feeding driving mechanism that is applied on the centerless grinder.
Background technology
Centerless grinder is not need to adopt the workpiece axle center and the class grinding machine that carries out the grinding work piece external diameter.In the prior art, the grinding work of centerless grinder is mainly cooperated by abrasive grinding wheel, guide wheel and three critical pieces of carriage to be finished.Its medium plain emery wheel is served as grinding work; The rotation of guide wheel control workpiece, and make the workpiece feeding; Carriage is holding workpieces when grinding.
In the prior art, the wheel frame that guide wheel be used for to be installed generally comprises slide plate and fixed body, and guide wheel is installed on the fixed body, and fixed body is installed on the slide plate, slide plate be installed on the lathe bed and can move forward into to, slide plate drives by main feed mechanism, carries out feed motion.In the prior art, the drives structure of centerless grinder master feed mechanism is to adopt feeding handwheel connection teeth wheel shaft mostly, gear shaft drives the helical gear revolution, helical gear is connected with feed screw nut on the ball-screw, drive slide plate when feed screw nut rotates and do feed motion, mainly there is following defective in it: the driving-chain of (1), driving mechanism is long, and transmission accuracy is low; (2), adopt manually and regulate, precision stability is poor; (3), manually operated efficient is low, labour intensity is large, can not realize automated production.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of stepper motor stright-pulling type master feeding driving mechanism that is applied on the centerless grinder is provided, it is simple and compact for structure, convenient processing and manufacture, good rigidly, transmission accuracy is high, precision stability is high, long service life, stable performance is suitable for automated production and uses.
The technical scheme that provides according to the utility model: stepper motor stright-pulling type master feeding driving mechanism, it is characterized in that: comprise stepper motor, harmonic speed changer, ball-screw, leading screw seat, feed screw nut and end cap, the output shaft of stepper motor connects harmonic speed changer, and stepper motor is to the harmonic speed changer input torque; The output block of described harmonic speed changer connects ball-screw, and described ball-screw is positioned in the leading screw seat by the bearing assembly supporting, and described leading screw seat is fixed on the lathe bed, and described harmonic speed changer drives ball-screw and rotates; Be equipped with the feed screw nut that cooperates with its formation screw thread transmission on the described ball-screw, be fixedly connected with end cap on the described feed screw nut, described end cap is fixedly connected with slide plate, and drive feed screw nut and slide plate were made accurate rectilinear motion when ball-screw rotated.
As further improvement of the utility model, described harmonic speed changer comprises retainer plate, generator, power transmission shaft, joint element, just takes turns and flexbile gear, and described power transmission shaft right-hand member connects with the output shaft of stepper motor and locks with retainer plate; Described joint element is enclosed within power transmission shaft middle part and fixing, and generator is enclosed within right section of power transmission shaft and uses packing ring and jump ring card jail, and generator blocks by joint element; Described firm wheel is fixedly mounted on and connects on the dish, connects dish and is fixedly connected on the leading screw seat, and stepper motor is fixedly mounted on and connects on the dish; Described flexbile gear is fixedly connected on the ball-screw, generator on the described power transmission shaft is packed in the flexbile gear and is forced flexbile gear to produce radial deformation, the excircle of flexbile gear is deformed into ellipse, the external tooth at the major axis two ends of described oval flexbile gear is in engagement with the internal tooth of just taking turns, the external tooth at the minor axis two ends of oval flexbile gear is in disengaged condition with the internal tooth of firm wheel, and the internal tooth of the external tooth of other each points and firm wheel is in the transition stage between engagement and the disengagement on the oval flexbile gear periphery.
As further improvement of the utility model, described bearing assembly comprises bearing, trimmer, nut and platen, and described ball-screw is positioned in the leading screw seat by bearing and trimmer supporting, and the Internal and external cycle of described trimmer fastens with nut and pressure plate stud respectively.
As further improvement of the utility model, the right-hand member end face of described ball-screw is provided with shrinkage pool, and the left end of described power transmission shaft stretches in the shrinkage pool and by a little bearing supporting location, described little bearing is fixed on the power transmission shaft by gland.
The utility model compared with prior art, advantage is:The utility model is simple and compact for structure, convenient processing and manufacture, adopt stepper motor and cooperate harmonic speed changer to drive, transmission accuracy is high, and minimum resolution can reach 0.0005mm, and owing to be to adopt motor-driven, precision stability is high, long service life, stable performance is suitable for automated production and uses.
Description of drawings
Fig. 1 is the structural front view of the utility model embodiment.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: the stepper motor stright-pulling type master feeding driving mechanism among the embodiment mainly by stepper motor 1, retainer plate 2, generator 3, power transmission shaft 4, joint element 5, just take turns 6, flexbile gear 7, ball-screw 8, nut 9, platen 10, trimmer 11, bearing 12, leading screw seat 13, feed screw nut 15, end cap 16, slide plate 17, connect the parts such as dish 18, packing ring 19 and jump ring 20 and form.
As shown in Figure 1, the output shaft of described stepper motor 1 connects harmonic speed changer, and stepper motor 1 is to the harmonic speed changer input torque; The output block of described harmonic speed changer connects ball-screw 8, and described ball-screw 8 is positioned in the leading screw seat 13 by the bearing assembly supporting, and described leading screw seat 13 is fixed on the lathe bed 14, and described harmonic speed changer drives ball-screw 8 and rotates; Be equipped with the feed screw nut 15 that cooperates with its formation screw thread transmission on the described ball-screw 8, be fixedly connected with end cap 16 on the described feed screw nut 15, described end cap 16 is screwed and connects slide plate 17, and ball-screw 8 drives feed screw nut 15 when rotating and slide plate 17 is made accurate rectilinear motion.
The structure of described harmonic speed changer as shown in Figure 1, its mainly by retainer plate 2, generator 3, power transmission shaft 4, joint element 5, just take turns 6 and flexbile gear 7 form, described power transmission shaft 4 right-hand members connect with the output shaft of stepper motor 1 and lock with retainer plate 2, and stepper motor 1 is by power transmission shaft 4 input torques; Described joint element 5 is enclosed within power transmission shaft 4 middle parts and fixing, and generator 3 is enclosed within 4 right sections of power transmission shafts and blocks the jail with packing ring 19 and jump ring 20, and generator 3 blocks by joint element 5; Described firm wheel 6 is screwed to be installed in and connects on the dish 18, connects dish 18 and is screwed and is connected on the leading screw seat 13, and stepper motor 1 is screwed to be installed in and connects on the dish 18; Described flexbile gear 7 is screwed and is connected on the ball-screw 8, generator 3 on the described power transmission shaft 4 is packed in the flexbile gear 7 and is forced flexbile gear 7 to produce radial deformations, the excircle of flexbile gear 7 is deformed into ellipse, the external tooth at the major axis two ends of described oval flexbile gear 7 is in engagement with the internal tooth of just taking turns 6, the external tooth at the minor axis two ends of oval flexbile gear 7 is in disengaged condition with the internal tooth of firm wheel 6, and the internal tooth of the external tooth of other each points and firm wheel 6 is in the transition stage between engagement and the disengagement on oval flexbile gear 7 peripheries.
When stepper motor 1 drives power transmission shaft 4 continuous the rotation, external tooth on flexbile gear 7 peripheries and just between the internal tooth of wheel 6 in succession by engagement turn to nibble out, by nibble out turn to disengagement, by disengagement turn to engaging-in, turn to engagement by engaging-in, in this process, flexbile gear 7 is carrying out continuous rotation, and the rotating speed of flexbile gear 7 rotations is humorous wavy conversion.
As shown in Figure 1, described bearing assembly mainly is comprised of bearing 12, trimmer 11, nut 9 and platen 10, described ball-screw 8 is positioned in the leading screw seat 13 by bearing 12 and trimmer 11 supportings, and the Internal and external cycle of described trimmer 11 is locked with nut 9 and platen 10 respectively.
In order to ensure power transmission shaft 4 smooth rotation, the utility model is provided with a supporting location structure at the left end of power transmission shaft 4, as shown in Figure 1, the right-hand member end face of described ball-screw 8 is provided with shrinkage pool, the left end of described power transmission shaft 4 stretches in the shrinkage pool and by a little bearing supporting location, described little bearing is fixed on the power transmission shaft 4 by gland.
Claims (4)
1. stepper motor stright-pulling type master feeding driving mechanism, it is characterized in that: comprise stepper motor (1), harmonic speed changer, ball-screw (8), leading screw seat (13), feed screw nut (15) and end cap (16), the output shaft of stepper motor (1) connects harmonic speed changer, and stepper motor (1) is to the harmonic speed changer input torque; The output block of described harmonic speed changer connects ball-screw (8), described ball-screw (8) is positioned in the leading screw seat (13) by the bearing assembly supporting, described leading screw seat (13) is fixed on the lathe bed (14), and described harmonic speed changer drives ball-screw (8) and rotates; Be equipped with the feed screw nut (15) that cooperates with its formation screw thread transmission on the described ball-screw (8), be fixedly connected with end cap (16) on the described feed screw nut (15), described end cap (16) is fixedly connected with slide plate (17), and drive feed screw nut (15) and slide plate (17) were made accurate rectilinear motion when ball-screw (8) rotated.
2. stepper motor stright-pulling type master feeding driving mechanism as claimed in claim 1, it is characterized in that: described harmonic speed changer comprises retainer plate (2), generator (3), power transmission shaft (4), joint element (5), just takes turns (6) and flexbile gear (7), and described power transmission shaft (4) right-hand member connects with the output shaft of stepper motor (1) and locks with retainer plate (2); Described joint element (5) is enclosed within power transmission shaft (4) middle part and fixing, and generator (3) is enclosed within right section of power transmission shaft (4) and uses packing ring (19) and jump ring (20) card jail, and generator (3) blocks by joint element (5); Described firm wheel (6) is fixedly mounted on and connects on the dish (18), connects dish (18) and is fixedly connected on the leading screw seat (13), and stepper motor (1) is fixedly mounted on and connects on the dish (18); Described flexbile gear (7) is fixedly connected on the ball-screw (8), generator (3) on the described power transmission shaft (4) is packed in the flexbile gear (7) and is forced flexbile gear (7) to produce radial deformation, the excircle of flexbile gear (7) is deformed into ellipse, the external tooth at the major axis two ends of described oval flexbile gear (7) is in engagement with the internal tooth of just taking turns (6), the external tooth at the minor axis two ends of oval flexbile gear (7) is in disengaged condition with the internal tooth of firm wheel (6), and the internal tooth of the external tooth of other each points and firm wheel (6) is in the transition stage between engagement and the disengagement on oval flexbile gear (7) periphery.
3. stepper motor stright-pulling type master feeding driving mechanism as claimed in claim 1, it is characterized in that: described bearing assembly comprises bearing (12), trimmer (11), nut (9) and platen (10), described ball-screw (8) is positioned in the leading screw seat (13) by bearing (12) and trimmer (11) supporting, and the Internal and external cycle of described trimmer (11) uses respectively nut (9) and platen (10) to be locked.
4. stepper motor stright-pulling type master feeding driving mechanism as claimed in claim 1, it is characterized in that: the right-hand member end face of described ball-screw (8) is provided with shrinkage pool, the left end of described power transmission shaft (4) stretches in the shrinkage pool and by a little bearing supporting location, described little bearing is fixed on the power transmission shaft (4) by gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204437254U CN202753004U (en) | 2012-09-03 | 2012-09-03 | Straight pull type main feed drive mechanism for stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204437254U CN202753004U (en) | 2012-09-03 | 2012-09-03 | Straight pull type main feed drive mechanism for stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202753004U true CN202753004U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204437254U Expired - Fee Related CN202753004U (en) | 2012-09-03 | 2012-09-03 | Straight pull type main feed drive mechanism for stepping motor |
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| Country | Link |
|---|---|
| CN (1) | CN202753004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450257A (en) * | 2016-05-30 | 2017-12-08 | 中兴通讯股份有限公司 | Projecting apparatus, projecting method and device |
-
2012
- 2012-09-03 CN CN2012204437254U patent/CN202753004U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450257A (en) * | 2016-05-30 | 2017-12-08 | 中兴通讯股份有限公司 | Projecting apparatus, projecting method and device |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20170903 |