CN1169646C - Elastic boring bar - Google Patents
Elastic boring bar Download PDFInfo
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- CN1169646C CN1169646C CNB021155380A CN02115538A CN1169646C CN 1169646 C CN1169646 C CN 1169646C CN B021155380 A CNB021155380 A CN B021155380A CN 02115538 A CN02115538 A CN 02115538A CN 1169646 C CN1169646 C CN 1169646C
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- deformable body
- elastic deformable
- bar
- elastic
- boring
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Abstract
The present invention relates to an elastic boring bar which comprises a bar body and a cutter bar, wherein the cutter bar is connected with the bar body and is provided with a boring cutter. The bar body is composed of an elastic deformable body, a connection sleeve, a crown bar, a draw rod and a steel ball, wherein the elastic deformable body and the connection sleeve are cylinders. Longitudinal grooves arranged on the elastic deformable body are respectively positioned two parallel sections at the middle section of the elastic deformable body to form four thin walls mutually parallel; a transverse groove are communicated with two middle longitudinal grooves. The connection sleeve is positioned in the elastic deformable body; gaps exist between the front section and the middle section of the elastic deformable body and the connection sleeve; the rear section of the elastic deformable body is fixedly connected with the connection sleeve. The draw rod is positioned in the connection sleeve and is coaxial with the connection sleeve; a bevel is arranged on the draw rod. The crown bar is positioned above the bevel of the draw rod; the shaft center line of the crown bar is perpendicular to the thin walls; the upper end of the crown bar is fixedly connected with the front section of the elastic deformable body. The steel ball is positioned in a hole at the lower end of the crown bar; the contact face of the steel ball with the bevel is a plane. The end part of the cutter bar is connected with the front section of the elastic deformable body. The boring bar can realize the micro compensation of cutters, and can simultaneously realize the compensation of multiple cutters.
Description
Technical field
The present invention relates to a kind of special-purpose boring head boring bar, specifically, it relates to a kind of elastic boring bar, and it can realize the automatic toolsetting of boring process, i.e. error compensation.
Background technology
In bore hole processing, especially on automatic assembly line, carry out large quantities of a large amount of bore holes and add man-hour, because tool wear and adjustment, lathe wearing and tearing and other process conditions variation etc. are determined or the existence of uncertain factor, make the scale error (size dispersion degree) in processed hole strengthen, for this reason, need in process, adjust, to reduce the scale error in processed hole boring cutter.Existing artificial toolsetting mode not only can not guarantee the precision of toolsetting, and has interrupted the operate as normal beat of transfer matic, has strengthened working strength of workers simultaneously, has greatly influenced quality, efficient and the reliability of bore hole processing.Chinese patent ZL98214329.x discloses a kind of " center is the boring bar of location automatically " on August 11st, 1999.This boring bar is made of the body of rod and the cutter head of being located at body of rod lower end, is provided with the centering bar and the axially movable push rod that move radially on the body of rod.But this boring bar can not be adjusted cutter automatically to satisfy the needs of the size adjusting of processing the aperture.
Summary of the invention
The object of the present invention is to provide a kind of boring bar that can carry out accurate toolsetting automatically, this boring bar can be adjusted cutter automatically, satisfies the needs of the size adjusting in processing aperture, therefore can improve quality, efficient and the reliability of bore hole processing.
For achieving the above object, a kind of elastic boring bar comprises the body of rod and the knife bar that boring cutter is housed that is attached thereto, and it is characterized in that the described body of rod is made of elastic deformable body, coupling sleeve, push rod, pull bar and steel ball; Elastic deformable body is a cylinder, and before vertically be divided into back three sections, first to the 3rd cannelure is positioned on the A-A cross section in elastic deformable body stage casing, the the 4th to the 6th cannelure is positioned on the B-B cross section parallel with the A-A cross section, elastic deformable body middle part, and forming four thin-walleds that are parallel to each other, transverse groove communicates with the second and the 5th cannelure; Coupling sleeve is a cylinder, and is positioned at elastic deformable body, leaves the gap between preceding, the stage casing of elastic deformable body and the coupling sleeve, and its back segment is fixedly connected with it; Pull bar is positioned at coupling sleeve and coaxial with it, which is provided with the inclined-plane; Push rod is positioned at the inclined-plane top of pull bar, and its axial line and thin-walled are perpendicular, fixedlys connected with the leading portion of elastic deformable body in the upper end of push rod, and steel ball is positioned at the hole of push rod lower end, and the contact-making surface on it and inclined-plane is the plane; Fixedly connected with the leading portion of elastic deformable body in the end of knife bar.
As the improvement of foregoing invention, described transverse groove is vertical with the 5th cannelure with second, and the stage casing of elastic deformable body is divided into laterally zygomorphic two parts.
The thickness of above-mentioned thin-walled is preferably 0.5-15.0mm.
Principle of the present invention is to utilize moving axially of the pull bar have the inclined-plane, withstanding steel ball promotion push rod by the inclined-plane moves radially, drive the relative interplanting radial deflection that connects of a part that elastic deformable body links to each other with knife bar, thereby realize move radially (feeding) of cutter; Coupling sleeve is coaxial with the boring head main-shaft axis, and fixedly connected by the two, rigid support part as the boring bar body, pull bar moves axially in the central through hole of coupling sleeve, the middle part of elastic deformable body is provided with fluting (vertically fluting) on two sections, form four book walls that are parallel to each other (the strain part of elastic deformable body), and thus elastic deformable body is divided into three sections (leading portions, the stage casing, back segment), part between the two sections (stage casing) is provided with fluting (vertical with vertical fluting), and communicate with a transversal slotting, the elastic deformable body stage casing is divided into two parts up and down, make elastic deformable body form a parallelogram four-bar linkage thus, thereby make two sections rigid bodies in front and back of elastic deformable body can relatively move in the radial direction by its strain, wherein leading portion and knife bar are fixedly linked in the end, back segment is fixedlyed connected with coupling sleeve, make the relative coupling sleeve of back segment to move radially, the other parts of elastic deformable body are with the place that cooperates with connection and then are provided with a certain amount of gap, making it to connect interplanting relatively moves radially, when the structural parameters of elastic deformable body satisfy certain condition, moving radially of the relative coupling sleeve of leading portion of elastic deformable body is integral translation, and the drive knife bar is realized the overall radial translation, thereby on a knife bar, realize many feeding of cutter equivalent, to satisfy the needs of time processing shoulder hole, push rod one end is connected with the elastic deformable body leading portion, its axis is vertical with four book walls that are parallel to each other on the elastic deformable body, the end of the other end of push rod is provided with centre bore, steel ball is packed in the centre bore, and is pressed on the inclined-plane of pull bar.Moving axially of pull bar by leading portion, the knife bar of steel ball, push rod, elastic deformable body, finally drives cutter and realizes radial feed.
The present invention compared with prior art has following advantage and good effect: can automatically realize the micro-translation or the skew of (boring) knife bar under the driving of the boring unit head (boring head) that has the compensation driving, thereby realize the trace compensation (radially microfeed) of cutter, when the knife bar translation, can realize many simultaneously the compensation of cutter.This boring bar is used with corresponding boring unit head and (automatically) inside diameter measurement device, can realize the automatic toolsetting (error compensation) of boring process.
Description of drawings
Fig. 1 is a principle schematic of the present invention;
Fig. 2 is a specific embodiment structural representation of elastic boring bar of the present invention;
Fig. 3 is the structural representation of a specific embodiment of elastic deformable body among Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
In Fig. 1, first connecting rod 25 is simplification bodies of coupling sleeve and elastic deformable body back segment, the second, the 4th connecting rod 26,28 is respectively the simplification body of top, elastic deformable body stage casing, bottom, third connecting rod 29 is simplification bodies of elastic deformable body leading portion, first to fourth hinge 24,27,30,31 is respectively the simplification body of the book wall that is parallel to each other of four of elastic deformable bodies, and they have constituted a parallelogram four-bar linkage.
As shown in Figure 2, the knife bar that boring cutter is housed two parts that the present invention can be divided into the body of rod and be attached thereto, the body of rod is made of elastic deformable body 5, coupling sleeve 6, push rod 2, pull bar 7 and steel ball 3.
Elastic deformable body 5 is a cylinder, as shown in Figure 3, it before vertically be divided into back three section 12,21 and 20, first to the 3rd cannelure 9,11,15 is positioned on the A-A cross section in elastic deformable body stage casing, the the 4th to the 6th cannelure 16,19,23 is positioned on the B-B cross section parallel with the A-A cross section, elastic deformable body stage casing, and the thickness that forms 10,14,17,22, four thin-walleds of four thin-walleds that are parallel to each other better effects if of the present invention between 0.5-15.0mm the time.Transverse groove 13 communicates with the second and the 5th cannelure 11,19.When transverse groove 13 is vertical with the 5th cannelure 11,19 with second, and when the stage casing of elastic deformable body 5 is divided into laterally zygomorphic two parts, can realize better technique effect.
As can be seen from Figure 3, four the line of thin-walled 10,14,17,22 on same cross section constituted parallelogram, that is to say, the line of first to fourth hinge 24,27,30,31 constitutes a parallelogram.
Coupling sleeve 6 also is a cylinder, and be positioned at elastic deformable body 5, the leading portion of elastic deformable body and stage casing and coupling sleeve external cylindrical surface have the gap about 1mm, and there is certain space that moves radially in the leading portion and the stage casing that are beneficial to elastic deformable body, and its back segment is fixedly connected with it.
Fixedly connected with the leading portion of elastic deformable body 5 in the end of knife bar 4, concrete mode can adopt location, the face of cylinder, and by screw in compression.
Coupling sleeve 6 is located with adopting the short cylindrical conical surface being connected of boring head main shaft, compresses by the screw end face.
Straight end-face key all can be established in the end face cooperation place of above-mentioned boring head main shaft and coupling sleeve, coupling sleeve and elastic deformable body, elastic deformable body and knife bar, to transmit moment of torsion.
The above-mentioned body of rod is with cover plate 1 and protective cover 8 outward.Cover plate and protective cover play sealing and protective action, enter boring bar body inside with the foreign material that prevent industry spot.
Claims (3)
1. an elastic boring bar comprises the body of rod and the knife bar that boring cutter is housed that is attached thereto, and it is characterized in that, the described body of rod is made of elastic deformable body (5), coupling sleeve (6), push rod (2), pull bar (7) and steel ball (3);
Elastic deformable body (5) is a cylinder, and before vertically be divided into back three sections, first to the 3rd cannelure (9,11,15) is positioned on the A-A cross section in elastic deformable body stage casing, the the 4th to the 6th cannelure (16,19,23) is positioned on the B-B cross section parallel with the A-A cross section, elastic deformable body middle part, and forming four thin-walleds that are parallel to each other (10,14,17,22), transverse groove (13) communicates with the second and the 5th cannelure (11,19);
Coupling sleeve (6) is a cylinder, and is positioned at elastic deformable body (5), leaves the gap between preceding, the stage casing of elastic deformable body (5) and the coupling sleeve (6), and its back segment is fixedly connected with it;
Pull bar (7) is positioned at coupling sleeve (6) and coaxial with it, which is provided with the inclined-plane;
Push rod (2) is positioned at the top, inclined-plane of pull bar (7), its axial line and thin-walled (10,14,17,22) are perpendicular, fixedly connected with the leading portion of elastic deformable body (5) in the upper end of push rod (2), steel ball (3) is positioned at the hole of push rod lower end, and the contact-making surface on it and inclined-plane is the plane;
Fixedly connected with the leading portion of elastic deformable body (5) in the end of knife bar (4).
2. elastic boring bar according to claim 1 is characterized in that: the thickness of described thin-walled (10,14,17,22) is 0.5-15.0mm.
3. elastic boring bar according to claim 1 and 2 is characterized in that: described transverse groove (13) is vertical with the 5th cannelure (11,19) with second, and the stage casing of elastic deformable body (5) is divided into laterally zygomorphic two parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021155380A CN1169646C (en) | 2002-02-05 | 2002-02-05 | Elastic boring bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021155380A CN1169646C (en) | 2002-02-05 | 2002-02-05 | Elastic boring bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1364674A CN1364674A (en) | 2002-08-21 |
| CN1169646C true CN1169646C (en) | 2004-10-06 |
Family
ID=4743717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021155380A Expired - Fee Related CN1169646C (en) | 2002-02-05 | 2002-02-05 | Elastic boring bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1169646C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161111A (en) * | 2011-05-13 | 2011-08-24 | 新兴铸管股份有限公司 | Following boring machine |
| CN102303148B (en) * | 2011-07-14 | 2013-05-29 | 山东大学威海分校 | Novel compensating device for boring cutter |
| CN102615301B (en) * | 2012-03-26 | 2014-05-07 | 华中科技大学 | Elastic boring bar |
| CN102615300B (en) * | 2012-03-26 | 2013-07-24 | 华中科技大学 | Elastic boring bar capable of realizing automatic adjustment for radial direction of boring cutter |
-
2002
- 2002-02-05 CN CNB021155380A patent/CN1169646C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1364674A (en) | 2002-08-21 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041006 |