CN205183930U - Two circular arc plunger broaches - Google Patents
Two circular arc plunger broaches Download PDFInfo
- Publication number
- CN205183930U CN205183930U CN201520851957.7U CN201520851957U CN205183930U CN 205183930 U CN205183930 U CN 205183930U CN 201520851957 U CN201520851957 U CN 201520851957U CN 205183930 U CN205183930 U CN 205183930U
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- China
- Prior art keywords
- tooth
- utility
- model
- active section
- guide pillar
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- Expired - Fee Related
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Abstract
The utility model discloses a two circular arc plunger broaches, whole shape is cylindrical, including pull end, preceding guide pillar, active section tooth and back guide pillar, preceding guide pillar to back guide pillar section both sides still are provided with two chip pockets, the dark 3.5mm of chip pocket, the active section tooth includes 15 inclined plane teeth, arc surface tooth and finishing teeth, the inclined plane rake angle 15, the whole tooth pitch of active section tooth is 8mm, and the rise per tooth is 0.07mm. The utility model discloses a generating broaching mode, make the broach integral, simple structure, processing is convenient, once guarantees the broaching precision to can be convenient for reface when the renovation. Reduce manufacturing cost promptly, improved economic efficiency again.
Description
Technical field
The utility model relates to mechanical manufacturing field, more particularly, particularly relates to a kind of bicylindrical plug broaching tool.
Background technology
Hydraulic motor is widely used in lathe, electric power, controls the industry hydraulic systems such as gold.Bicircular arcs plunger is then the part in hydraulic motor, and as shown in Figure 1, bicircular arcs plunger member is made up of six sections of eccentric arcs and four sections of oblique lines.The arc groove of bicircular arcs plunger puts roller, then puts into rotor, and rotor rotates in stator.A rotor is put six plungers.Bicircular arcs plunger endoporus profile cylindricity, position degree, symmetry, fineness and arc size required precision are high.With linear cutter, the time is long, and efficiency is low, and cost is high, is not suitable for large batch of production; As bored milling on Digit Control Machine Tool, working (machining) efficiency improves, but workpiece fineness does not reach requirement; With broaching layout processing, speed is fast, and ensure precision, cost also reduces.A hydraulic motor will be installed six plungers, so the use amount of plunger is very large, very applicable Broaching Technology is processed.
First shape according to bicircular arcs plunger considers profile broaching mode.Broaching tool adopts and combines to two similar semi-circular teeth wide in workpiece and cutter hub.Number of teeth is few, broach length is not long, manufacture difficulty is little, but installation accuracy is high, if edged surface is not on a surface of revolution before cutter tooth, then refacing of broaching tool anterior angle just can not complete by clamped one time, cutter tooth part is needed to pull down, reinstall after having repaiied, propose higher technology to use producer and ask, cause difficulty to user.
Utility model content
The purpose of this utility model is, for above-mentioned prior art Problems existing, to provide a kind of structure monoblock type, disposable guarantee broaching precision, and is easy to rebuild the bicylindrical plug broaching tool refaced.
The technical solution adopted in the utility model is bicircular arcs plunger broaching tool, and global shape is cylindrical; Comprise pull end, frong guide column, active section tooth and BB1; Frong guide column is also provided with two chip pockets to BB1 section both sides; The dark 3.5mm of described chip pocket; Described active section tooth comprises 15 ° of inclined-plane teeth, arc surface tooth and finishing teeth; Described inclined-plane rake angle 15 °; The overall tooth pitch of described active section tooth is 8mm, and rise per tooth is 0.07mm.
The utility model adopts generating broaching mode, and broaching tool is made monoblock type, and structure is simple, easy to process, once ensures broaching precision, and can be convenient to reface when rebuilding.Namely reduce production cost, turn improve business efficiency.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is bicircular arcs piston structure schematic diagram.
Fig. 2 is the utility model structural representation.
Fig. 3 is the utility model A-A sectional view.
Fig. 4 is the utility model B-B sectional view.
Fig. 5 is the utility model C-C sectional view.
In figure: 1, pull end, 2, frong guide column, 3,15 ° of inclined-plane teeth, 4, arc surface tooth, 5, finishing teeth, 6, BB1,7, chip pocket.
Detailed description of the invention
Accompanying drawings, bicircular arcs plunger broaching tool of the present utility model, global shape is cylindrical; Comprise pull end 1, frong guide column 2, active section tooth and BB1 6; Frong guide column 2 to BB1 6 sections of both sides are also provided with two chip pockets 7; The dark 3.5mm of described chip pocket 7; Described active section tooth comprises 15 ° of inclined-plane teeth 3, arc surface tooth 4 and finishing teeth 5; Described inclined-plane rake angle 15 °; The overall tooth pitch of described active section tooth is 8mm, and rise per tooth is 0.07mm.
During utility model works, first draw 15 ° of inclined-planes, then draw arc surface.Broaching remainder is 6.43; It is unsuitable excessive that the selection of rise per tooth considers to draw rear surface fineness, gets 0.07mm; Workpiece is cylindrical, and consider the stability of broaching, tooth pitch gets 8mm, ensures that the number of teeth simultaneously worked is 4; Broaching tool two sides will be chip pocket 7 by grinding low, and the degree of depth of chip pocket 7 will be deepened, and gets groove depth 3.5mm; Inclined-plane rake angle 15 ° is got according to workpiece material.After each parameter is determined, can calculate cutter tooth length, add pull end 1 and frong guide column 2, BB1 6 length, broach length just can be determined.The ratio of checking computations length and diameter, is no more than 40mm, meets the requirements.Through pulling force and strength check, in allowed band.
The utility model main manufacturing processes flow process is: car both ends of the surface, centering-Che each several part cylindrical, appearance of vehicle cotter way-heat treatment-alignment-mill anterior angle-cylindrical grinding, rear chamfering become-grind 15 ° of inclined-planes, arc surfaces, finally grind arc toothed on numerical control spline grinding machine, and utilize back centre to raise method on the flank of tooth, form certain front clearance and auxiliary angle, thus solve a difficult problem for mill side clearance.
The utility model adopts generating broaching mode, and broaching tool is made monoblock type, and structure is simple, easy to process, once ensures broaching precision, and can be convenient to reface when rebuilding.Namely reduce production cost, turn improve business efficiency.
Above illustrated embodiment is better embodiment of the present utility model, only be used for conveniently the utility model being described, not any pro forma restriction is done to the utility model, have in any art and usually know the knowledgeable, if do not depart from the utility model carry in the scope of technical characteristic, utilize the utility model disclose the Equivalent embodiments changing or modify in the done local of technology contents, and do not depart from technical characteristic content of the present utility model, all still belong in the scope of the utility model technical characteristic.
Claims (1)
1. a bicircular arcs plunger broaching tool, is characterized in that: global shape is cylindrical; Comprise pull end (1), frong guide column (2), active section tooth and BB1 (6); Frong guide column (2) to BB1 (6) section both sides are also provided with two chip pockets (7); The dark 3.5mm of described chip pocket (7); Described active section tooth comprises 15 ° of inclined-plane teeth (3), arc surface tooth (4) and finishing teeth (5); Described inclined-plane rake angle 15 °; The overall tooth pitch of described active section tooth is 8mm, and rise per tooth is 0.07mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851957.7U CN205183930U (en) | 2015-10-30 | 2015-10-30 | Two circular arc plunger broaches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851957.7U CN205183930U (en) | 2015-10-30 | 2015-10-30 | Two circular arc plunger broaches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205183930U true CN205183930U (en) | 2016-04-27 |
Family
ID=55776961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520851957.7U Expired - Fee Related CN205183930U (en) | 2015-10-30 | 2015-10-30 | Two circular arc plunger broaches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205183930U (en) |
-
2015
- 2015-10-30 CN CN201520851957.7U patent/CN205183930U/en not_active Expired - Fee Related
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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: 20160427 Termination date: 20161030 |