CN201338221Y - High-speed grinding head used for processing small precise hole - Google Patents
High-speed grinding head used for processing small precise hole Download PDFInfo
- Publication number
- CN201338221Y CN201338221Y CNU2009200628142U CN200920062814U CN201338221Y CN 201338221 Y CN201338221 Y CN 201338221Y CN U2009200628142 U CNU2009200628142 U CN U2009200628142U CN 200920062814 U CN200920062814 U CN 200920062814U CN 201338221 Y CN201338221 Y CN 201338221Y
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- CN
- China
- Prior art keywords
- emery wheel
- connecting portion
- transiting rod
- hole
- grinding
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- 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 - Lifetime
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Abstract
The utility model discloses a high-speed grinding head used for processing a small precise hole. The high-speed grinding head comprises a drive motor, a grinding wheel extension shaft, a grinding wheel nail and a grinding wheel, wherein the grinding wheel extension shaft consists of a motor connecting part, a hard alloy transition rod and a grinding wheel connecting part; a transition rod containing hole is opened on the motor holding part; one end of the hard alloy transition rod is connected with the motor connecting part through the transition rod holding hole in a hot extrusion way, and the other end thereof is welded with the grinding wheel connecting part; the grinding wheel is connected with the grinding wheel connecting part by the grinding wheel nail; and the output end of the drive motor is connected with the motor connecting part. The high-speed grinding head used for processing the small precise hole has the advantage of improving the grinding quality and grinding efficiency for the small precise hole.
Description
Technical field
The utility model relates to the machining tool of precise hole, relates in particular to high speed bistrique used when processing precise hole.
Background technology
At present, the aperture 4mm to 16mm, hole depth more than or equal to 15mm, simultaneously dimensional accuracy in IT5～7, surface roughness value requires to be less than or equal to Ra0.8 μ m, has the precise hole that the accuracy of form and position requires, the general rotating speed that uses reaches 100000 rev/mins high speed grinding machine grinding, and the bistrique of employing is the high speed bistrique.Use the precise hole that this type of aperture of high speed bistrique grinding is little and draw ratio is big, have following problem: be subjected to the limited aperture of precise hole, the diameter of Grinding wheel for milling hole must be less than the aperture of precise hole, and this makes that the diameter of the emery wheel spreading axle that the connection emery wheel is used is littler; And according to the precise hole depth dimensions, emery wheel spreading axle must have enough jib-lengths, just can reach the requirement of working depth.As seen, the emery wheel spreading axle of processing precise hole high speed bistrique has the advantages that diameter is little, length is long, therefore, when the high speed bistrique is worked, emery wheel spreading axle is easy to generate flexural deformation (or claiming cutter relieving) and vibration, make the machining accuracy and the difficult control of surface roughness of workpiece, also limited the raising of grinding dosage simultaneously, influenced production efficiency.In order to improve the rigidity of emery wheel spreading axle, existing measure is directly at the stage casing of emery wheel spreading axle welding carbide alloy transiting rod, the gas that produces when welding in order to get rid of, need at the transiting rod containing hole place of motor connecting portion drilling radial hole, this hole claims the exhaust air technique hole, this exhaust air technique pore volume easily causes emery wheel spreading axle imbalance when high-speed motion, even exhaust air technique hole on after finishing welding, blocking up, also can cause emery wheel spreading axle imbalance when high-speed motion owing to the difference of filling material, influence the machining accuracy of precise hole, thereby must purchase smoothing weighing apparatus special equipment and increase complicated going heavily, smoothing weighing apparatus operation.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of high speed bistrique that is used for processing precise hole that improves precise hole grinding quality and grinding production efficiency is provided.
For solving the problems of the technologies described above, the utility model by the following technical solutions.
A kind of high speed bistrique that is used for processing precise hole, comprise drive motors, emery wheel spreading axle, emery wheel nail and emery wheel, described emery wheel spreading axle is made up of motor connecting portion, carbide alloy transiting rod and emery wheel connecting portion, offer the transiting rod containing hole on the described motor connecting portion, carbide alloy transiting rod one end is connected with the hot extrusion of motor connecting portion through the transiting rod containing hole, the other end and the welding of emery wheel connecting portion, emery wheel is connected with the emery wheel connecting portion by the emery wheel nail, and the output of drive motors is connected with the motor connecting portion.
The end that described carbide alloy transiting rod and emery wheel connecting portion join is made as conical tip, offers the conical bore corresponding with this conical tip on the emery wheel connecting portion.
The section of described carbide alloy transiting rod is circle or polygon, and the section configuration of transiting rod containing hole is corresponding with the section configuration of carbide alloy transiting rod.
Compared with prior art, advantage of the present utility model is: the high speed bistrique integral rigidity height that is used for processing precise hole of the present utility model, simple in structure, when being in the high speed rotating state, emery wheel can keep dynamic balancing, emery wheel spreading axle is difficult for producing flexural deformation and oscillation phenomenon during the wheel grinding precise hole, thereby guarantee the machining accuracy of precise hole, improve the crudy in hole; Improve emery wheel spreading axle rigidity, can improve grinding dosage, thereby improved the production efficiency of product processing; The section of carbide alloy transiting rod can be circle or polygon, when being circular, the section of carbide alloy transiting rod is convenient to processing, can make the carbide alloy transiting rod combine tightr during for polygon with the transiting rod containing hole of motor connecting portion, minimizing makes carbide alloy transiting rod and motor connecting portion produce loosening phenomenon under the effect of grinding force and grinding moment.
Description of drawings
Fig. 1 is the structural representation that the utility model is used for the high speed bistrique of processing precise hole;
Fig. 2 is the structural representation of the utility model emery wheel spreading axle;
Fig. 3 is the A-A profile of Fig. 2;
Fig. 4 is the cross section view of the section of carbide alloy transiting rod when being hexagon.
Each label is represented among the figure:
1, drive motors 2, emery wheel spreading axle
3, emery wheel 4, emery wheel nail
21, motor connecting portion 22, carbide alloy transiting rod
23, emery wheel connecting portion 211, transiting rod containing hole
The specific embodiment
As shown in Figure 1 to Figure 3, the utility model is used for the high speed bistrique of processing precise hole, comprise drive motors 1, emery wheel spreading axle 2, emery wheel nail 4 and emery wheel 3, emery wheel spreading axle 2 is by carbide alloy transiting rod 22, motor connecting portion 21 and emery wheel connecting portion 23 are formed, offer transiting rod containing hole 211 on the motor connecting portion 21, carbide alloy transiting rod 22 1 ends and 23 welding of emery wheel connecting portion, the other end is connected with 21 hot extrusions of motor connecting portion through transiting rod containing hole 211, emery wheel 3 is connected with emery wheel connecting portion 23 by emery wheel nail 4, and the output of drive motors 1 is connected with motor connecting portion 21.Because carbide alloy transiting rod 22 adopts hot extrusion to be connected with motor connecting portion 21, the rigidity of emery wheel spreading axle 2 is improved, center of gravity drops on the center line of spreading axle, make emery wheel when the high speed rotating state, can keep dynamic balancing, emery wheel spreading axle 2 is difficult for producing flexural deformation and oscillation phenomenon during emery wheel 3 grinding precise holes, improve the rotating accuracy of emery wheel 3, guaranteed the crudy of precise hole; Emery wheel spreading axle 2 rigidity improve, and the grinding dosage of emery wheel 3 is also increased, and have improved the production efficiency of product processing accordingly.Carbide alloy transiting rod 22 is made as conical tip with the end that emery wheel connecting portion 23 joins, emery wheel connecting portion 23 is provided with the conical bore corresponding with this conical tip, the section configuration of carbide alloy transiting rod 22 and transiting rod containing hole 211 is circular, is convenient to processing.
The utility model is used for the carbide alloy transiting rod 22 of high speed bistrique of processing precise hole and the section of transiting rod containing hole 211 can also be polygon (hexagon for example shown in Figure 4), the section of carbide alloy transiting rod 22 can make carbide alloy transiting rod 22 combine tightr with the transiting rod containing hole 211 of motor connecting portion 21 during for polygon, can reduce under grinding force and grinding moment loading, carbide alloy transiting rod and motor connecting portion produce loosening phenomenon.This type of simple replacement all should be considered as the replacement that is equal to of the present utility model, all should drop within the protection domain of the present utility model.
Claims (3)
1, a kind of high speed bistrique that is used for processing precise hole, comprise drive motors (1), emery wheel spreading axle (2), emery wheel nail (4) and emery wheel (3), described emery wheel spreading axle (2) is by motor connecting portion (21), carbide alloy transiting rod (22) and emery wheel connecting portion (23) are formed, it is characterized in that: offer transiting rod containing hole (211) on the described motor connecting portion (21), carbide alloy transiting rod (22) one ends are connected with motor connecting portion (21) hot extrusion through transiting rod containing hole (211), the other end and emery wheel connecting portion (23) welding, emery wheel (3) is connected with emery wheel connecting portion (23) by emery wheel nail (4), and the output of drive motors (1) is connected with motor connecting portion (21).
2, the high speed bistrique that is used for processing precise hole according to claim 1, it is characterized in that: described carbide alloy transiting rod (22) is made as conical tip with the end that emery wheel connecting portion (23) joins, and the emery wheel connecting portion offers the conical bore corresponding with this conical tip on (23).
3, the high speed bistrique that is used for processing precise hole according to claim 1 and 2, it is characterized in that: the section of described carbide alloy transiting rod (22) is circle or polygon, and the section configuration of transiting rod containing hole (211) is corresponding with the section configuration of carbide alloy transiting rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200628142U CN201338221Y (en) | 2009-01-04 | 2009-01-04 | High-speed grinding head used for processing small precise hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200628142U CN201338221Y (en) | 2009-01-04 | 2009-01-04 | High-speed grinding head used for processing small precise hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201338221Y true CN201338221Y (en) | 2009-11-04 |
Family
ID=41233757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200628142U Expired - Lifetime CN201338221Y (en) | 2009-01-04 | 2009-01-04 | High-speed grinding head used for processing small precise hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201338221Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171543A (en) * | 2015-08-31 | 2015-12-23 | 自贡中兴耐磨新材料有限公司 | Machining device and machining method of forming hole |
-
2009
- 2009-01-04 CN CNU2009200628142U patent/CN201338221Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171543A (en) * | 2015-08-31 | 2015-12-23 | 自贡中兴耐磨新材料有限公司 | Machining device and machining method of forming hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091104 Effective date of abandoning: 20090104 |