CN207272998U - Grinding machine piece-holder auxiliary body - Google Patents
Grinding machine piece-holder auxiliary body Download PDFInfo
- Publication number
- CN207272998U CN207272998U CN201721210861.8U CN201721210861U CN207272998U CN 207272998 U CN207272998 U CN 207272998U CN 201721210861 U CN201721210861 U CN 201721210861U CN 207272998 U CN207272998 U CN 207272998U
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- roller bearing
- sewing machine
- machine needle
- collet
- block
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model discloses grinding machine piece-holder auxiliary body, including chuck, the dental sewing machine needle is fixed in the chuck, the end set organic frame of the chuck, v-shaped block is provided with the rack, the dental sewing machine needle is erected on the vee-block, a collet is additionally provided with rack, two the first roller bearings are provided with the vee-block, roller bearing is rotatably connected on the vee-block, two the second roller bearings are provided with collet, second roller bearing is rotatably connected on the collet, the bottom of the outer ring of dental sewing machine needle is erected on first roller bearing, the top of the outer ring of dental sewing machine needle is in close contact with second roller bearing.Original sliding friction is made into rolling friction, under same pressure, frictional force greatly reduces, therefore it is possible to prevente effectively from frictionally damage to dental sewing machine needle outer surface.
Description
Technical field
A kind of grinding machine is the utility model is related to, more particularly, to a kind of grinding machine piece-holder auxiliary body.
Background technology
The size and geometric tolerance of car pin, grinding machine pair can be effectively ensured in dental sewing machine needle grinding machine piece-holder auxiliary body
Car pin grinding form be creep feed grinding, its velocity of rotation is 10-20 revs/min, is supported for V-block and provides possibility, during processing
Car pin is clamped by high-precision elastic collet, it is desirable to which car pin ensures circular runout in ＜ 0.04/10mm after clamping.
The clamping auxiliary body of traditional dental sewing machine needle, including chuck, dental sewing machine needle are clamped and fixed in chuck, described
One end of chuck sets organic frame, is provided with v-shaped block in the rack, the dental sewing machine needle is erected on the vee-block, rack
On be additionally provided with a collet, the collet compresses the top of the dental sewing machine needle.Collet and vee-block coordinate limits dentistry together
The position of car pin.
This mode, although can be very good to limit the circular runout of dental sewing machine needle, in order to good spacing, we
Need to impose severe pressure on collet.And the contact surface of dental sewing machine needle and collet only has one between line, with vee-block
Contact surface is two lines, this has been resulted in process, there is very big pressure on each contact surface of dental sewing machine needle, collet and
Vee-block can cause to damage to the outer ring of dental sewing machine needle, it is therefore necessary to be improved.
The content of the invention
For the deficiencies in the prior art, the utility model provides a kind of grinding machine piece-holder auxiliary machine
Structure, can effectively limit the circular runout of dental sewing machine needle, and the appearance of dental sewing machine needle will not be damaged.
The utility model is achieved by the following technical solution：Grinding machine piece-holder auxiliary body, including chuck,
The dental sewing machine needle is fixed in the chuck, the end set organic frame of the chuck, and v-shaped block is provided with the rack,
The dental sewing machine needle is erected on the vee-block, and a collet is additionally provided with rack, and two are provided with the vee-block
One roller bearing, the roller bearing are rotatably connected on the vee-block, and two the second roller bearings, second rolling are provided with the collet
Axis is rotatably connected on the collet, and the bottom of the outer ring of the dental sewing machine needle is erected on first roller bearing, the dentistry
The top of the outer ring of car pin is in close contact with second roller bearing.In use, dental sewing machine needle relies on the first roller bearing and the second roller bearing
Lateral surface realize positioning, dental sewing machine needle rotate when, the first roller bearing and the second roller bearing rotate therewith, this positioning method,
Make original sliding friction into rolling friction, under same pressure, frictional force greatly reduces, therefore it is possible to prevente effectively from
To the frictionally damage of dental sewing machine needle outer surface.Moreover, dental sewing machine needle and the first roller bearing have the contact surface of two lines, with the second roller bearing
Also there is the contact surface of two lines, can also so increase the contact area of a part, reduce the pressure of contact surface.
In above-mentioned technical proposal, it is preferred that it is provided with the first groove on two madial walls of the vee-block, described first
Roller bearing is arranged in first groove, and first roller bearing is at least partly outside first groove.First roller bearing ratio
A kind of mode for the rotation connection for being easier to expect is to install bearing at the both ends of the first roller bearing, but bearing is by multiple original papers
Moreover, also can be by the generation of accumulated error, and the mode being directly placed on the first roller bearing in groove at utmost reduces for combination
The possibility that accumulated error produces.
In above-mentioned technical proposal, it is preferred that the collet is made of magnetic material, and the bottom of the collet is provided with two
Second groove, second roller bearing are arranged in second groove, and second roller bearing is at least partly located at described second
In groove.Second roller bearing in collet, does not fall out, is then directly arranged in the second roller bearing in groove by magnetic absorption
This mode, at utmost reduces the possibility of accumulated error generation.
The utility model has the advantages that：In use, dental sewing machine needle is by the outer of the first roller bearing and the second roller bearing
Positioning is realized in side, and when dental sewing machine needle rotates, the first roller bearing and the second roller bearing rotate therewith, this positioning method, by original
First sliding friction has made rolling friction into, and under same pressure, frictional force greatly reduces, therefore it is possible to prevente effectively to tooth
The frictionally damage of section's car pin outer surface.Moreover, dental sewing machine needle and the first roller bearing have the contact surface of two lines, also have with the second roller bearing
The contact surface of two lines, can also so increase the contact area of a part, reduce the pressure of contact surface.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is sectional views of the Fig. 1 along A-A.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：
Referring to Fig. 1 and Fig. 2, grinding machine piece-holder auxiliary body, including chuck 1, the dental sewing machine needle 2 are fixed on institute
State in chuck 1, the end set organic frame 3 of the chuck 1, v-shaped block 31,2 frame of dental sewing machine needle are provided with the rack 3
It is located on the vee-block 31, a collet 32 is additionally provided with rack 3.
Two the first roller bearings 311 are provided with the vee-block 31, first roller bearing 311 is rotatably connected on the vee-block
On 31, in the present embodiment, the connection mode of the first roller bearing 311 and vee-block 31 is：Set on two madial walls of the vee-block 31
The first groove 312 is equipped with, first roller bearing 311 is arranged in first groove 312, and first roller bearing 311 is at least
Part is outside first groove 312.
Two the second roller bearings 321 are provided with the collet 32, second roller bearing 321 is rotatably connected on the collet 32
On, in the present embodiment, the connection mode of the second roller bearing 321 and collet 32 is：The collet 32 is made of magnetic material, the folder
First 32 bottom is provided with two the second grooves 322, and second roller bearing 321 is arranged on 322 in second groove, and described
Two roller bearings 321 at least part is in second groove 322.
The bottom of the outer ring of the dental sewing machine needle is erected on first roller bearing, the top of the outer ring of the dental sewing machine needle
It is in close contact with second roller bearing.In use, dental sewing machine needle realizes positioning by the lateral surface of the first roller bearing and the second roller bearing,
When dental sewing machine needle rotates, the first roller bearing and the second roller bearing rotate therewith, and this positioning method, original sliding friction is changed
Into rolling friction, under same pressure, frictional force greatly reduces, therefore it is possible to prevente effectively to dental sewing machine needle outer surface
Frictionally damage.Moreover, dental sewing machine needle and the first roller bearing have the contact surface of two lines, also there is the contact of two lines with the second roller bearing
Face, can also so increase the contact area of a part, reduce the pressure of contact surface.
Claims (3)
1. grinding machine piece-holder auxiliary body, including chuck, dental sewing machine needle are fixed in the chuck, the end of the chuck
Portion sets organic frame, is provided with vee-block in the rack, dental sewing machine needle is erected on the vee-block, and one is additionally provided with rack
A collet, it is characterised in that：Two the first roller bearings are provided with the vee-block, the roller bearing is rotatably connected on the vee-block
On, two the second roller bearings are provided with the collet, second roller bearing is rotatably connected on the collet, outside dental sewing machine needle
The bottom of circle is erected on first roller bearing, and the top of the outer ring of dental sewing machine needle is in close contact with second roller bearing.
2. grinding machine piece-holder auxiliary body according to claim 1, it is characterised in that：Two of the vee-block
The first groove is provided with madial wall, first roller bearing is arranged in first groove, first roller bearing at least portion
Divide outside first groove.
3. grinding machine piece-holder auxiliary body according to claim 1, it is characterised in that：The collet is by magnetic material
Material is made, and the bottom of the collet is provided with two the second grooves, and second roller bearing is arranged in second groove, described
Second roller bearing is at least partly in second groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210861.8U CN207272998U (en) | 2017-09-21 | 2017-09-21 | Grinding machine piece-holder auxiliary body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210861.8U CN207272998U (en) | 2017-09-21 | 2017-09-21 | Grinding machine piece-holder auxiliary body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207272998U true CN207272998U (en) | 2018-04-27 |
Family
ID=61982392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721210861.8U Active CN207272998U (en) | 2017-09-21 | 2017-09-21 | Grinding machine piece-holder auxiliary body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207272998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461643A (en) * | 2020-11-02 | 2021-03-09 | 燕山大学 | Plate tension and compression test auxiliary clamp based on rolling friction |
-
2017
- 2017-09-21 CN CN201721210861.8U patent/CN207272998U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461643A (en) * | 2020-11-02 | 2021-03-09 | 燕山大学 | Plate tension and compression test auxiliary clamp based on rolling friction |
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