CN202556225U - Grinding fixture based on surface determined by three points and positioning according to shape - Google Patents
Grinding fixture based on surface determined by three points and positioning according to shape Download PDFInfo
- Publication number
- CN202556225U CN202556225U CN201220247102XU CN201220247102U CN202556225U CN 202556225 U CN202556225 U CN 202556225U CN 201220247102X U CN201220247102X U CN 201220247102XU CN 201220247102 U CN201220247102 U CN 201220247102U CN 202556225 U CN202556225 U CN 202556225U
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- wedge
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- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model provides a grinding fixture based on a surface determined by three points and positioning according to a shape. The grinding fixture based on the surface determined by three points and positioning according to the shape comprises a rotary base seat and positioning fixtures, wherein the positioning fixtures are arranged on the rotary seat. The grinding fixture based on the surface determined by three points and positioning according to the shape is characterized in that the number of the positioning fixtures is three, the three positioning fixtures are evenly distributed in the same circle and made of tempered magnet, three floating positioning pins are arranged among the three positioning fixtures, and the positioning fixtures and the floating positioning pins divide the circle into six equal parts. Each floating positioning pin is composed of a positioning seat, a pressing spring, a wedge pin, a floating pin and a limiting bolt, wherein the floating pin is arranged inside a vertical hole of the positioning seat, the wedge pin is arranged inside a horizontal hole of the positioning seat, the vertical hole is communicated with the horizontal hole, the upper end surface of the floating pin contacts a workpiece, the lower end surface of the floating pin contacts a wedge surface of the wedge pin, the pressing spring is arranged between one end of the wedge pin and the bottom of the horizontal hole, and the other end of the wedge pin contacts the limiting bolt. The structure has the advantages that the three positioning fixtures determine the plane of the workpiece, and the floating pins carry out positioning and supporting operations according to the shape of the workpiece.
Description
Technical field
The utility model relates to a kind of grinding clamp, and is particularly a kind of to the demanding anchor clamps of flatness.
Background technology
Float grease seal ring in the engineering machinery in the commonly used float grease seal, spindle is the shape of a saddle to the cross section, the floating type end face sealing ring of being processed by ferroalloy materials (hereinafter to be referred as floating sealing ring).Floating sealing ring needs to use in pairs, and one another is static relatively with the revolving part rotation, and the end face that two floating sealing rings are close to mutually is called sealing surface, requires to grind to reach the minute surface light, so be also referred to as bright band.Bright band flatness require highly, the above bright band flatness of floating sealing ring internal diameter 250mm requires to be not more than 25 μ m, poor (thickness) of external diameter and internal diameter and highly be 13-20mm belongs to typically narrow thin annular element.
Guarantee the flatness requirement of bright band, must adopt the method for grinding technics, and two operations before the floating sealing ring grinding step are Vehicle Processing and heat treatment, because workpiece is narrow thin annular element; After the Vehicle Processing again two of the heat treatment floating sealing ring big small end faces all use certain warpage, deflection is 80-150 μ m, the bright band that grind floating sealing ring just must be with the endoporus and the small end face location workpiece of floating sealing ring; Existing grinding technics generally is to adopt rotary grinder, and is downward floating sealing ring large end face (bright band), the foundary weight of small end face pressurization standard weights; Workpiece and round platform plane rotatablely move on the contrary, adopt micro mist to grind bright band, during attrition process; Because the foundary weight deadweight, workpiece compressive strain, grind after 30-50 minute; Remove foundary weight, the workpiece recovery that will rebound, the deflection on bright band plane still has 50-80 μ m; Adopt vertical rotary grinder in addition in addition, the floating sealing ring bright band makes progress, electricity consumption magnetic strength power sucker fixation workpiece; Use the abrasion wheel grinding bright band, because its fixation principle is identical with the foundary weight fixation principle, so the bright band flatness is defective equally after the attrition process.
The utility model content
The purpose of the utility model is to provide a kind of for the deficiency that solves above-mentioned technology can effectively locate, and avoids decide face, conformal location grinding clamp at 3 that workpiece is not bent.
In order to achieve the above object, decide face, conformal location grinding clamp at 3 that the utility model designed, it mainly comprises rotating base and positioning fixture; Positioning fixture is arranged on the rotating base, it is characterized in that described positioning fixture is three, is distributed in the same circumference; And positioning fixture is made up of tempering magnet, between three positioning fixtures, also is provided with three unsteady alignment pins, and positioning fixture and unsteady alignment pin are with circumference six five equilibriums; Described unsteady alignment pin is made up of positioning seat, stage clip, wedge pin, unsteady pin and caging bolt; Unsteady pin is arranged in the vertical hole of positioning seat, and wedge pin is arranged in the lateral aperture of positioning seat, and described vertical hole is communicated with lateral aperture; The upper surface of unsteady pin contacts with workpiece; The lower surface contacts with the lozenges of wedge pin, is provided with stage clip between at the bottom of an end of wedge pin and the hole of lateral aperture, and the other end contacts with caging bolt.The characteristics of this structure are the planes that three positioning fixtures are confirmed workpiece, shape localization and the support of pin with workpiece of floating.
Resulting 3 Ginding process of deciding face, these anchor clamps of conformal location grinding clamp base use of the utility model; Deft design; Utilize 3 principles of confirming a plane, fixation workpiece provides the power that effectively provides support in the shape according to workpiece; Make workpiece under its natural form, to grind; Avoided directly utilizing pressure or magnetic fixation workpiece to cause the diastrophic shortcoming of the excessive workpiece of pressure in the Ginding process in the past, made the workpiece planarization degree that finally obtains improve greatly, can be controlled at accurately in the 20 μ m.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the unsteady alignment pin of the utility model.
The specific embodiment
Combine accompanying drawing that the utility model is done further to describe through embodiment below.
Embodiment 1:
Like Fig. 1, shown in Figure 2, decide face, conformal location grinding clamp at 3 of the present embodiment description, it mainly comprises rotating base 1 and positioning fixture 2; Positioning fixture 2 is arranged on the rotating base 1, it is characterized in that described positioning fixture 2 is three, is distributed in the same circumference; And positioning fixture 2 is made up of tempering magnet, between three positioning fixtures 2, also is provided with three unsteady alignment pins 3, and positioning fixture 2 and unsteady alignment pin 3 are with circumference six five equilibriums; Described unsteady alignment pin 3 is made up of positioning seat 31, stage clip 32, wedge pin 33, unsteady pin 34 and caging bolt 35; The pin 34 that floats is arranged in the vertical hole 36 of positioning seat 31, and wedge pin 33 is arranged in the lateral aperture 37 of positioning seat 31, and described vertical hole 36 is communicated with lateral aperture 37; The upper surface of unsteady pin 34 contacts with workpiece 4; The lower surface contacts with the lozenges of wedge pin 33, is provided with stage clip 32 between at the bottom of an end of wedge pin 33 and the hole of lateral aperture 37, and the other end contacts with caging bolt 35.The characteristics of this structure are the planes that three positioning fixtures 2 are confirmed workpiece 4, shape localization and the support of pin 34 with workpiece 4 of floating.
A kind ofly using above-mentioned 3 Ginding process of deciding face, conformal location grinding clamp, mainly is to utilize caging bolt 35 to promote wedge pins 33 to positioning seat 31 in, to move, and makes the float plane at pin 34 places be lower than the plane that positioning fixture 2 belongs to; Then workpiece 4 is positioned on the positioning fixture 2; Utilize positioning fixture 2 magnetic that workpiece 4 is fixed on the plane, then make and loosen the fiber bolt, make wedge pin 33 under the effect of stage clip 32, outwards move; Promote to float pin 34 to float; Final contact of pin 34 upper surfaces and the supporting workpiece 4 of floating after so fixation workpiece 4 is accomplished, grinding workpiece 4 surfaces.This Ginding process can be effectively fixing with workpiece 4, workpiece 4 do not applied deformation force in the fixation procedure simultaneously, and workpiece 4 grinds the back plane degree and reaches optimum efficiency.
Claims (1)
1. decide face, conformal location grinding clamp at one kind 3, it mainly comprises rotating base and positioning fixture, and positioning fixture is arranged on the rotating base; It is characterized in that described positioning fixture is three, be distributed in the same circumference, and positioning fixture is made up of tempering magnet; Between three positioning fixtures, also be provided with three unsteady alignment pins, positioning fixture and unsteady alignment pin are with circumference six five equilibriums, and described unsteady alignment pin is made up of positioning seat, stage clip, wedge pin, unsteady pin and caging bolt; Unsteady pin is arranged in the vertical hole of positioning seat, and wedge pin is arranged in the lateral aperture of positioning seat, and described vertical hole is communicated with lateral aperture; The upper surface of unsteady pin contacts with workpiece; The lower surface contacts with the lozenges of wedge pin, is provided with stage clip between at the bottom of an end of wedge pin and the hole of lateral aperture, and the other end contacts with caging bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220247102XU CN202556225U (en) | 2012-05-25 | 2012-05-25 | Grinding fixture based on surface determined by three points and positioning according to shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220247102XU CN202556225U (en) | 2012-05-25 | 2012-05-25 | Grinding fixture based on surface determined by three points and positioning according to shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202556225U true CN202556225U (en) | 2012-11-28 |
Family
ID=47205923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220247102XU Expired - Fee Related CN202556225U (en) | 2012-05-25 | 2012-05-25 | Grinding fixture based on surface determined by three points and positioning according to shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202556225U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717331A (en) * | 2012-05-25 | 2012-10-10 | 胜方精密机械（浙江）有限公司 | Grinding clamp for determining surface by three points and locating along with shape and grinding method employing clamp |
| CN103753496A (en) * | 2014-01-21 | 2014-04-30 | 宁波工程学院 | Bolt holder |
| CN104368914A (en) * | 2013-08-15 | 2015-02-25 | 昆山思拓机器有限公司 | Clamping and position adjusting mechanism |
| CN107598762A (en) * | 2017-10-21 | 2018-01-19 | 德清凯晶光电科技有限公司 | Large scale erratic star wheel and its uniform grinding method |
| CN110567802A (en) * | 2019-10-11 | 2019-12-13 | 江苏越科新材料有限公司 | Core material shearing sample bonding tool clamp |
-
2012
- 2012-05-25 CN CN201220247102XU patent/CN202556225U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717331A (en) * | 2012-05-25 | 2012-10-10 | 胜方精密机械（浙江）有限公司 | Grinding clamp for determining surface by three points and locating along with shape and grinding method employing clamp |
| CN104368914A (en) * | 2013-08-15 | 2015-02-25 | 昆山思拓机器有限公司 | Clamping and position adjusting mechanism |
| CN103753496A (en) * | 2014-01-21 | 2014-04-30 | 宁波工程学院 | Bolt holder |
| CN107598762A (en) * | 2017-10-21 | 2018-01-19 | 德清凯晶光电科技有限公司 | Large scale erratic star wheel and its uniform grinding method |
| CN107598762B (en) * | 2017-10-21 | 2023-10-31 | 德清凯晶光电科技有限公司 | Large-size planetary wheel and uniform polishing method thereof |
| CN110567802A (en) * | 2019-10-11 | 2019-12-13 | 江苏越科新材料有限公司 | Core material shearing sample bonding tool clamp |
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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: 20121128 Termination date: 20190525 |