CN2717597Y - Involute gear external surface broach - Google Patents
Involute gear external surface broach Download PDFInfo
- Publication number
- CN2717597Y CN2717597Y CN 200420063212 CN200420063212U CN2717597Y CN 2717597 Y CN2717597 Y CN 2717597Y CN 200420063212 CN200420063212 CN 200420063212 CN 200420063212 U CN200420063212 U CN 200420063212U CN 2717597 Y CN2717597 Y CN 2717597Y
- Authority
- CN
- China
- Prior art keywords
- broach
- external surface
- involute gear
- gear external
- cutting
- 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
Abstract
The utility model relates to an involute gear external surface broach, each broach is enchased in a circle sleeve barrel through a screw, a work piece is clamped in a driving bracket in the center of the sleeve barrel, a broach sleeve barrel is fixed on a clamping device, and the broach is evenly arranged in the circumference of the processed work piece. The equipment and the motion of the involute gear external surface broach are simple, the cutting only needs a main motion, and the feeding motion is completed through the lifting amount of broach teeth of the broach, so the involute gear external surface broach is easy to operate. The involute gear external surface broach has high efficiency, one cutting process can complete the rough process, the half semi-finishing process and the semi-finishing process, the involute gear external surface broach takes two to three minutes to process the outer surface of a big gear wheel with four modules and sixty teeth. The involute gear external surface broach has high processing accuracy and surface process quality, a cutting layer is very thin when cutting, the cutting speed is low to conveniently obtain small surface roughness, and the surface roughness can reach Ra 1.25. The tooth error of the processed work piece can reach 0.01, the accumulated error of the circumference can reach 0.015, and the gear accuracy is higher than the gear accuracy of a 7-7-8 stage gear.
Description
Affiliated field: the utility model relates to a kind of involute gear external broach.
Background technology: at present, the involute teeth wheel outer surface of machining large-modulus, multiple tooth number generally adopts the processing method of gear hobbing, slotting and milling.Traditional processing method has following shortcoming: 1, working (machining) efficiency is low: process a modulus 4, the number of teeth 60, pressure angle 20 degree, effectively processing length is 60 involute teeth wheel outer surface, needs 2 hours.2, poor dimensional precision: gear hobbing and slotting processing work are the generate process principle, form the involute teeth wheel outer surface gradually, and profile accuracy is poor, and accumulative pitch error is big, and the processed accuracy of gear can reach 8 grades.3, surface roughness is bad: gear hobbing and slotting processing work, because impulsive force is bigger, process is not steady, and the workpiece to be machined surface roughness is bad, can reach Ra6.3.4, process and equipment complexity: gear hobbing and slotting processing work divide main motion, feed motion and other synkinesias.
Summary of the invention: the purpose of this utility model provides a kind of work efficiency rate, dimensional accuracy, suface processing quality all the very big high involute gear external broach of carrying.The purpose of this utility model realizes by following structure: the utility model is a kind of involute gear external broach, each broaching tool is installed in the round buss by screw, workpiece clamp is on the bogie at sleeve center, the broaching tool sleeve is fixed on the jig, and broaching tool is evenly distributed on the circumference of workpiece to be machined.The utility model characteristics are as follows: 1, equipment and motion are simple: broaching only needs a main motion, and feed motion then is to finish easy operating by broaching tool cutter rise per tooth.2, working (machining) efficiency height: can finish slightly in the stroke of once broaching, a modulus 4 is processed in half essence and fine finishining, and the number of teeth is that 60 gear wheel outer surface only needs 2-3 minute.3, machining accuracy and surface quality height: the cutting lay during broaching is very thin, and broaching speed is low, easily obtains less surface roughness value, and surface roughness can reach Ra1.25.The workpiece to be machined profile error can reach 0.01, and branch accumulated errors such as circumference can reach 0.015, is higher than the 7-7-8 level accuracy of gear.1. for guaranteeing assembly precision, whenever should do squarely to cutter, precision is convenient to control, is convenient to assembling.To be threaded the hole on the cutter hub, in order to fastening broaching tool.2, answer strict control hole apart from tolerance, and consider that the heat treatment metapore apart from elongation, rationally compresses, guarantee that assembling smoothly.Tolerance on the cutter hub between pitch-row can be ± 0.2mm, and rule of thumb, pitch-row is pressed the 2.5mm/1000mm compression before the heat treatment, guarantees that broaching tool can successfully be installed in the sleeve.3. for guaranteeing the cutter serviceability, should as anterior angle, relief angle, rise per tooth, tooth pitch, dimensional accuracy etc., enough chip spaces be arranged according to choose reasonable broaching tool parameters such as workpiece to be machined material, hardness, effective processing length, machining accuracies.
Description of drawings:
Fig. 1 is the utility model overall structure figure
Fig. 2 is the A-A cutaway view of Fig. 1
The specific embodiment: the utility model as shown in Figure 1 is a kind of involute gear external broach, each broaching tool 3 is installed in the round buss 1 by screw 5, workpiece 4 is clipped on the bogie 6 at sleeve center, as shown in Figure 2,1 in broaching tool circle cover is fixed on the jig 2, and broaching tool is evenly distributed on the circumference of workpiece to be machined.The version of involute gear external broach and dimensional accuracy can manufacture and design according to the parameter (as: modulus, the number of teeth, pressure angle, branch circular thickness, big footpath, path, workpiece material hardness, broaching length, broaching machine model etc.) that the user provides.With the automobile engine flywheel is example: modulus 4.051667, the number of teeth 60, pressure angle 20 degree, branch circular thickness 4.972, big footpath 246, path 243.1, workpiece material hardness HB185--215, broaching length 60, broaching machine model L5140, profile accuracy 0.05mm, surface roughness Ra 1.6um.Broaching tool can be designed to 20 one group, supporting use.Broaching tool is made square structure, and 3 teeth are arranged on every broaching tool, and has done the screwed hole of 8 M8 on the cutter hub bottom surface, makes broaching tool be installed in the round buss, is evenly distributed on the engine flywheel circumference.
Claims (1)
1, a kind of involute gear external broach, it is characterized in that: each broaching tool (3) is installed in the round buss (1) by screw (5), workpiece (4) is clipped on the bogie (6) at sleeve center, broaching tool circle cover (1) tube is fixed on the jig (2), and broaching tool is evenly distributed on the circumference of workpiece to be machined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063212 CN2717597Y (en) | 2004-08-02 | 2004-08-02 | Involute gear external surface broach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063212 CN2717597Y (en) | 2004-08-02 | 2004-08-02 | Involute gear external surface broach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2717597Y true CN2717597Y (en) | 2005-08-17 |
Family
ID=34893528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063212 Expired - Fee Related CN2717597Y (en) | 2004-08-02 | 2004-08-02 | Involute gear external surface broach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2717597Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857588A (en) * | 2021-10-18 | 2021-12-31 | 大连理工大学 | Method and device for processing tooth profile of straight-tooth cylindrical gear |
-
2004
- 2004-08-02 CN CN 200420063212 patent/CN2717597Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857588A (en) * | 2021-10-18 | 2021-12-31 | 大连理工大学 | Method and device for processing tooth profile of straight-tooth cylindrical gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1762624A (en) | Process method of small eccentricity multi-eccentric and bidirectionally eccentric axle | |
| CN203738162U (en) | Biarc correction cycloid gear hob | |
| CN2717597Y (en) | Involute gear external surface broach | |
| CN111331205B (en) | Gear shaping clamp for segmented processing of inner gear ring | |
| CN1077149A (en) | Elliptic gear is shaved, honing principle and lathe thereof | |
| CN215617147U (en) | Grinding device is used in processing of aluminium slider | |
| CN87202772U (en) | Universal working carriage | |
| CN100336625C (en) | Inserted blades worm shaped gear machining cutter | |
| CN214557983U (en) | Fixed tool for gear hobbing machine machining | |
| CN213615310U (en) | Tool fixing tool with ultra-precision and adjustable diameter size | |
| CN2671731Y (en) | Insert sheet worm gear processing cutter | |
| CN210968089U (en) | Five-piece clutch tooth dividing plate | |
| CN210755620U (en) | Gear grinding device for transmission case gear | |
| CN1943972A (en) | Method for processing sector gear | |
| CN212191583U (en) | Flexible supporting structure for grinding small-tooth-number involute gear | |
| CN210817517U (en) | Eccentric cushion block | |
| JP2011218455A (en) | Tooth flank generating tool of hourglass worm and method for manufacturing hourglass worm by using the same | |
| CN209886832U (en) | End face helical tooth numerical control machining device | |
| CN102861951A (en) | Axial special separating method for turned multithread worm in metric system for common lathe | |
| CN111843057A (en) | Multi-tooth positioning claw for improving indexing and positioning precision of index plate | |
| CN210817786U (en) | Device for machining duplicate gear by adopting numerical control milling machine | |
| CN203696543U (en) | Combined crankshaft eccentric hole heavy-boring clamp | |
| CN218903852U (en) | Improved vertical gear shaving machine | |
| CN214443332U (en) | Big gantry milling machine | |
| CN2810838Y (en) | Arc cycloid broaching tool with three keys |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HARBIN FIRST TOOL MANUFACTURING CO. Free format text: FORMER OWNER: HARBIN NO.1 TOOL CORPORATION Effective date: 20070420 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070420 Address after: 150020 No. 117 South Road, Daowai District, Heilongjiang, Harbin Patentee after: Harbin No.1 Tool Making Co., Ltd. Address before: 150020 No. 117 South Road, Daowai District, Heilongjiang, Harbin Patentee before: Harbin No.1 Tool Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050817 Termination date: 20090802 |