CN100574949C - Rack bar gear milling clamper - Google Patents
Rack bar gear milling clamper Download PDFInfo
- Publication number
- CN100574949C CN100574949C CN200810237768A CN200810237768A CN100574949C CN 100574949 C CN100574949 C CN 100574949C CN 200810237768 A CN200810237768 A CN 200810237768A CN 200810237768 A CN200810237768 A CN 200810237768A CN 100574949 C CN100574949 C CN 100574949C
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- ratch
- right pressing
- left pressing
- facade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
A kind of rack bar gear milling clamper, two ratch are installed in respectively in the horizontal plane of both sides, body top symmetry and the groove that facade is formed, and an end of two ratch withstands the locating piece that is installed in symmetrical channels one end.Positioning pressuring plate is pressed in by high-head knurling screw on the facet of two ratch, and left pressing plate and right pressing plate are contained in and are matched in clearance in the groove of body both sides correspondence.Bolt passes spheric washer and right pressing plate, spring are screwed on the left pressing plate, and an end of spring withstands left pressing plate, and the other end of spring withstands right pressing plate.Withstand at the bottom of the circular arc less than 90 degree grooves that the monosymmetric horizontal plane in body bottom and facade form the lower end of left pressing plate and right pressing plate, and the inclined-plane of left pressing plate and right pressing plate upper end is pressed in respectively and is installed in above the body on the ratch in the groove of both sides.Two ratch unload high-head knurling screw and positioning pressuring plate and carry out mill teeth processing with profile milling cutter after stepping up on the clamp body.Anchor clamps are the ratch design of mill teeth on demand, and manufacturing process is simple, and cost is low.The location is reasonable, and clamping is reliable, makes to add conveniently.
Description
Technical field
The present invention relates to the processing apparatus of machine components, especially rack bar gear milling clamper.
Background technology
The cooperation that rack and pinion is formed is a type of belt drive commonly used in the Machine Design, and the some of them tooth bar can be designed to cylindrical, also is ratch.Promptly process a facet, making tooth (tooth top of each tooth is all in facet) on the facet at its direction of axis line of cylinder upper edge.The ratch of using as speed governing on 195 high-pressure fuel pump of diesel engine.Because the ratch modulus ratio is less, the number of teeth is less, can not take general processing technology system tooth in batch process.Should mill out the facet on the ratch come earlier before the mill teeth, once the tooth on the part all be processed with profile milling cutter again.During mill teeth when stepping up ratch, the facet position on the ratch must with the profile milling cutter axis parallel, parallel with machining direction.Clamping problem when common anchor clamps can not be realized rack bar gear milling.
Summary of the invention
The purpose of this invention is to provide a kind of rack bar gear milling clamper, the facet that reaches when stepping up ratch on the ratch is in the tram.
The objective of the invention is to realize as follows:, step up two ratch simultaneously with the facet location that has processed on the ratch.Rack bar gear milling clamper is made up of body, left pressing plate, spring, high-head knurling screw, screw, positioning pressuring plate, spheric washer, bolt, right pressing plate and locating piece.Two ratch are installed in respectively in the horizontal plane of both sides, body top symmetry and the grooves of angle less than 90 degree that facade is formed, and an end of two ratch withstands the locating piece that is installed in both sides, body top symmetrical channels one end.Positioning pressuring plate is pressed on the facet of two ratch by high-head knurling screw.Left pressing plate and right pressing plate are contained in and are matched in clearance in the groove of body both sides correspondence.Bolt passes the hole of spheric washer and right pressing plate, the endoporus of spring is screwed in the screw of left pressing plate, and an end of spring withstands left pressing plate, and the other end of spring withstands right pressing plate.Withstand respectively at the bottom of the circular arc less than 90 degree grooves of monosymmetric horizontal plane in body bottom and facade composition the lower end of left pressing plate and right pressing plate, arc radius at the bottom of this circular arc is consistent with the arc radius of left pressing plate and right pressing plate lower end circular arc projection, and the angle of wedge of the lower end of left pressing plate and right pressing plate is less than the angle on the both sides of this groove.The inclined-plane of left pressing plate and right pressing plate upper end is pressed in respectively and is installed in above the body on the ratch in the groove of both sides, the top and body of left pressing plate and right pressing plate top concordant.
Two ratch unload high-head knurling screw and positioning pressuring plate and carry out mill teeth processing with profile milling cutter after stepping up on the clamp body.
The advantage of this rack bar gear milling clamper is: anchor clamps are the ratch design of mill teeth on demand, and manufacturing process is simple, and cost is low.The location is reasonable, and clamping is reliable, and is easy to use.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Accompanying drawing is the installation diagram of rack bar gear milling clamper.
Fig. 2 is a front view.
Fig. 1 is the A-A cutaway view of Fig. 2.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the B-B cutaway view of Fig. 3.
Fig. 5 is the I place partial enlarged drawing of Fig. 1.
1. bodies among the figure, 2. left pressing plate, 3. spring, 4. ratch, 5. high-head knurling screw, 6. screw, 7. positioning pressuring plate, 8. spheric washer, 9. bolt, 10. right pressing plate, 11. locating pieces.A. the size of the horizontal plane that contacts with body to ratch of the facade contact point of ratch and body, b. the size of horizontal plane above body that contact with body of ratch, c. the mill teeth bottom of trench is to the size of ratch and body exposure level face, the angle of d. body upper water plane and facade, r. ratch exradius.
The specific embodiment
Accompanying drawing is the installation diagram of the part rack bar gear milling clamper in the 195 high-pressure fuel pump of diesel engine parts.In order to improve working (machining) efficiency, require once all teeth on the ratch all to be milled out, though the modulus of ratch has only 0.5, feed that all teeth are milled out, Milling Force is bigger.The ratch external diameter that can Gong step up has only 7 millimeters.During milling, the mill teeth facet must be in the tram on the ratch that last operation processes.These factors have all proposed higher requirement to the performance of gear milling clamper.Design is: two ratch 4 are installed in respectively in the horizontal plane of both sides, body 1 top symmetry and the grooves of angle less than 90 degree that facade is formed, and the horizontal plane on both sides, top is on same plane.Locating piece 11 usefulness screws 6 are pressed on an end of both sides, body 1 top symmetrical channels, and an end of two ratch 4 withstands locating piece 11.Utilize on two ratch 4 the mill teeth facet to the contour principle of horizontal plane is installed, be pressed in by high-head knurling screw 5 on the facet of two ratch 4, the orientation problem of solution ratch 4 on clamp body 1 with positioning pressuring plate 7.Left pressing plate 2 and right pressing plate 10 are contained in and are matched in clearance in the groove of body 1 both sides correspondence, cooperate optional H9/d9.Main purpose is when preventing to turn bolt 9 and stepping up ratch, and left pressing plate 2 and right pressing plate 10 rotate thereupon.Bolt 9 passes the hole of spheric washer 8 and right pressing plate 10, the endoporus of spring 3 is screwed in the screw of left pressing plate 2.Spheric washer 8 is pressed on the concave spherical surface of right pressing plate 10 correspondences.One end of spring 3 withstands left pressing plate 2, the other end of the spring 3 top pressing plate 10 of turning right, in order that when unclamping bolt 9, it is convenient to unload ratch.Withstand at the bottom of the circular arc less than 90 degree grooves of monosymmetric horizontal plane in body 1 bottom and facade composition the lower end of left pressing plate 2 and right pressing plate 10, and the arc radius at the bottom of this circular arc is consistent with the arc radius of left pressing plate 2 and right pressing plate 10 lower end circular arc projectioies.The angle of wedge of left pressing plate 2 and right pressing plate 10 lower end left and right directions is less than the angle on the both sides of this groove.In order to make pressing plate stressed evenly, the bottom of two pressing plates, bigger chamfering is all designed in the front and back end, reduces the contact length at the bottom of pressing plate lower end and body 1 circular arc.The reliable fulcrum that has been two platen design so just.The inclined-plane of left pressing plate 2 and right pressing plate 10 upper ends is pressed in respectively on the ratch 4 that is installed in the body 1 top both sides groove.Top and the body of left pressing plate 2 and right pressing plate 10 top concordant disturbs with milling cutter above two pressing plates when avoiding milling.When ratch 4 is stepped up stressed evenly, the facade that left pressing plate 2 or right pressing plate 10 are pushed down body 1 top that the face of ratch 4 contacts with ratch 4 is for passing through these ratch 4 axial lines and perpendicular to the plane symmetry on body 1 upper water plane.The relevant calculation of parameter of anchor clamps: see partial enlarged drawing 5.Anchor clamps and milling cutter disturb during for fear of milling, and it is 0.4～0.6 millimeter that the mill teeth bottom of trench deducts the size b of horizontal plane above body that ratch contacts with body to ratch and the size c of body exposure level face.Make the ratch stress point by last, the facade contact point that the size b of the horizontal plane that ratch contacts with body above body deducts ratch and body is 0.4～0.6 millimeter to the size a of the horizontal plane that ratch contacts with body as far as possible.The calculating of the angle d of body upper water plane and facade, COSd=(a-r)/r.R is the ratch exradius.Can be according to the numerical value that is worth d of trigonometric function.For improving the service life of anchor clamps, the top heat treatment hardness 50～55HRC of body 1 upper water plane and facade, left pressing plate 2 and right pressing plate 10.
The use of anchor clamps: utilize the hole on body 1 base plate that anchor clamps are pressed on the workbench of milling machine, make body 1 upper water plane parallel, with the profile milling cutter axis parallel with machining direction.Make ratch 4 axial lines that are contained on the clamp body 1 vertical with machining direction.When compressing ratch 4, make two pressing plates compress ratch 4 by bolt 9 with positioning pressuring plate 7.Pull down high-head knurling screw 5 and positioning pressuring plate 7 mill teeths.Mill teeth finishes, and unclamps bolt 9 and unloads the ratch that processes.Remove high-head knurling screw 5 and positioning pressuring plate 7, this rack bar gear milling clamper is equally applicable to ratch and mills the facet operation.
Claims (5)
1, a kind of rack bar gear milling clamper, by body, left pressing plate, spring, high-head knurling screw, screw, positioning pressuring plate, spheric washer, bolt, right pressing plate and locating piece are formed, it is characterized in that: two ratch are installed in respectively in the horizontal plane of both sides, body top symmetry and the grooves of angle less than 90 degree that facade is formed, one end of two ratch withstands the locating piece that is installed in both sides, body top symmetrical channels one end, positioning pressuring plate is pressed on the facet of two ratch by high-head knurling screw, left pressing plate and right pressing plate are contained in the groove of body both sides correspondence and are matched in clearance, bolt passes the hole of spheric washer and right pressing plate, the endoporus of spring is screwed in the screw of left pressing plate, one end of spring withstands left pressing plate, the other end of spring withstands right pressing plate, withstand respectively at the bottom of the circular arc less than 90 degree grooves of monosymmetric horizontal plane in body bottom and facade composition the lower end of left pressing plate and right pressing plate, arc radius at the bottom of this circular arc is consistent with the arc radius of left pressing plate and right pressing plate lower end circular arc projection, the angles that the angle of wedge of the lower end of left pressing plate and right pressing plate is formed less than the monosymmetric horizontal plane in body bottom and facade less than the both sides of 90 degree grooves, the inclined-plane of left pressing plate and right pressing plate upper end is pressed in respectively on the ratch that is installed in the groove of both sides, body top, the top and body of left pressing plate and right pressing plate top concordant.
2, rack bar gear milling clamper according to claim 1 is characterized in that: left pressing plate and right pressing plate are contained in to cooperate in the groove of body both sides correspondence and are H9/d9.
3, rack bar gear milling clamper according to claim 1 is characterized in that: the facade that left pressing plate or right pressing plate are pushed down the body top that the face of ratch contacts with ratch is for by this ratch axial line and perpendicular to the plane symmetry on body upper water plane.
4, rack bar gear milling clamper according to claim 1 is characterized in that: it is 0.4～0.6 millimeter that the mill teeth bottom of trench deducts the size (b) of horizontal plane above body that ratch contacts with body to the ratch and the size (c) of body exposure level face; The facade contact point that the size (b) of the horizontal plane that ratch contacts with body above body deducts ratch and body is 0.4～0.6 millimeter to the size (a) of the horizontal plane that ratch contacts with body; COS d=(a-r)/r, wherein d is the angle of body upper water plane and facade, the size of a horizontal plane that to be ratch contact with body to ratch with the facade contact point of body, r is the ratch exradius.
5, rack bar gear milling clamper according to claim 1 is characterized in that: the top heat treatment hardness 50～55HRC of body upper water plane and facade, left pressing plate and right pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810237768A CN100574949C (en) | 2008-12-02 | 2008-12-02 | Rack bar gear milling clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810237768A CN100574949C (en) | 2008-12-02 | 2008-12-02 | Rack bar gear milling clamper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101428361A CN101428361A (en) | 2009-05-13 |
| CN100574949C true CN100574949C (en) | 2009-12-30 |
Family
ID=40644116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810237768A Expired - Fee Related CN100574949C (en) | 2008-12-02 | 2008-12-02 | Rack bar gear milling clamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100574949C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB869281A (en) * | 1958-11-14 | 1961-05-31 | Craven Brothers Manchester Ltd | Improvements relating to the manufacture of toothed racks |
| US3687006A (en) * | 1969-06-23 | 1972-08-29 | Hobourn Eaton Mfg Co Ltd | Attachment for cutting rack gear teeth of variable pitch |
-
2008
- 2008-12-02 CN CN200810237768A patent/CN100574949C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB869281A (en) * | 1958-11-14 | 1961-05-31 | Craven Brothers Manchester Ltd | Improvements relating to the manufacture of toothed racks |
| US3687006A (en) * | 1969-06-23 | 1972-08-29 | Hobourn Eaton Mfg Co Ltd | Attachment for cutting rack gear teeth of variable pitch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101428361A (en) | 2009-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213828686U (en) | Telescopic positioning surface assembly with pressing device | |
| CN104493576A (en) | Fixture used for drilling and tapping of hinge shape steel | |
| CN201300265Y (en) | Toothed bar clamping device | |
| CN204747544U (en) | Movable jack catch clamping mechanism | |
| CN100574949C (en) | Rack bar gear milling clamper | |
| CN204195339U (en) | A kind of fixture for hinge shaped steel drilling and tapping | |
| CN101691015A (en) | Inner cavity processing clamp of multi-surface cylinder part | |
| CN215697300U (en) | Die chuck structure of bending machine | |
| CN202741788U (en) | Plate-type reversing valve hole machining device | |
| CN209811893U (en) | Grinding lathe is with knife grinding frame of shaping R sword | |
| CN109015013B (en) | Accurate clearance processing location frock of mounting panel | |
| CN203125312U (en) | Aero-engine high-voltage rotor locking piece grinding fixture | |
| CN203738433U (en) | Pressure-controllable limit anti-looseness fine-tuning clamp | |
| CN102205498A (en) | Clamp special for surface milling of multiple parts | |
| CN103722396A (en) | Pressure measurable limiting type looseness-preventing clamp | |
| CN113305616B (en) | Lathe special fixture for processing inner hole and end face of telescope type workpiece | |
| CN206105453U (en) | Inclined plane multislot spot facing work anchor clamps | |
| CN215547833U (en) | Workpiece clamp for surface grinding machine | |
| CN215145051U (en) | Six groove positioner are milled to integrative valve case | |
| CN210413612U (en) | Clamp for cutting length of guide nail in batches | |
| CN203738432U (en) | Pressure-controllable limit anti-looseness high-precision fine-tuning clamp | |
| CN217254499U (en) | Clamp for processing tooth shape of blade root | |
| CN220145331U (en) | Rocker arm slot milling clamp | |
| CN203592394U (en) | Valve body plane grinding clamp | |
| CN213764927U (en) | Four-axis fixture device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Jingliang Highway Mach. Co., Ltd. Assignor: Chen Shuo Contract record no.: 2010370000623 Denomination of invention: Rack bar gear milling clamper Granted publication date: 20091230 License type: Exclusive License Open date: 20090513 Record date: 20101223 |
|
| DD01 | Delivery of document by public notice |
Addressee: Chen Shuo Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20101202 |