CN104374346A - Single-nozzle-hole axis straightness measuring head - Google Patents
Single-nozzle-hole axis straightness measuring head Download PDFInfo
- Publication number
- CN104374346A CN104374346A CN201410629844.2A CN201410629844A CN104374346A CN 104374346 A CN104374346 A CN 104374346A CN 201410629844 A CN201410629844 A CN 201410629844A CN 104374346 A CN104374346 A CN 104374346A
- Authority
- CN
- China
- Prior art keywords
- head body
- measuring head
- gauge head
- nozzle
- small blind
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/18—Measuring arrangements characterised by the use of fluids for measuring angles or tapers; for testing the alignment of axes
- G01B13/19—Measuring arrangements characterised by the use of fluids for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
Abstract
The invention belongs to the technical field of air gauge assemblies and particularly relates to a single-nozzle-hole axis straightness measuring head. The single-nozzle-hole axis straightness measuring head comprises a cylindrical measuring head body and multiple auxiliary assemblies arranged on the measuring head body. An air inlet channel is formed in the axis portion of the measuring head body. A nozzle communicated with the air inlet channel is arranged in the radial direction. An annular transitional groove is formed in the position, corresponding to the nozzle, of the measuring head body. Small blind holes are evenly distributed in the portion, outside the annular transitional groove, of the measuring head body in the radial direction. Auxiliary assemblies are arranged in the small blind holes and composed of steel balls and springs. The springs are pressed in the small blind holes through the steel balls. The diameter of the circle of the outer end of each small blind hole is slightly smaller than that of the corresponding steel ball. The measuring head is simple in structure, exquisite, durable, not prone to abrasion and capable of protecting the inner hole wall of a workpiece against scratches.
Description
Technical field
The invention belongs to air-gauge component technology field, be specifically related to one-jet axially bored line linearity gauge head.
Background technology
In mechanical manufacturing field; form and position tolerance is important Testing index; air-gauge as a kind of can the assembled amount instrument of multiple stage; possesses lot of advantages; it is arranged in pairs or groups from different plug jets; the measurement of many kinds of parameters can be realized; so be widely used at machine industry; and when needing when using the axially bored line Linearity surveying of air-gauge to workpiece rotation workpiece being done on gauge head 360 °, rotating and often can cause inner hole of workpiece wall and scratched the surfaceness of destroying pores or gauge head surface and be worn and affect measuring accuracy.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned defect, provides not easy to wear and can protect again inner hole of workpiece wall not by the one-jet axially bored line linearity gauge head scratched, structure simple and durable.
The technical solution used in the present invention is as follows: one-jet axially bored line linearity gauge head, comprise columniform gauge head body, multiple accessory parts that gauge head body is arranged, the axle center place of described gauge head body is provided with inlet channel, radial direction is provided with the nozzle be communicated with inlet channel, gauge head body corresponding to nozzle place is provided with annular transitional groove, the radial direction of the gauge head body outside annular transitional groove is evenly equipped with small blind hole, described accessory part is arranged in small blind hole, accessory part is made up of steel ball and spring, spring is pressed in small blind hole by steel ball, and small blind hole outer end circular diameter is slightly less than steel ball size.
Described annular transitional groove sidewall with inclined-plane to the transition of gauge head body outer surface.
The invention has the beneficial effects as follows: adopt such scheme, when gauge head probe into the endoporus of workpiece and rotational workpieces time, with steel ball interval between wall surface of the hole and gauge head, steel ball can float under the action of the spring, playing buffer protection effect when rotating, avoiding the mutual damage that workpiece and gauge head generation Relative friction or slip cause, floating steel ball is by also to the precision that can improve measurement, this measuring head structure is simple, exquisite durable.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the present invention will become apparent.
Fig. 1 is schematic cross-section of the present invention.
Wherein: 1 is gauge head body, 1.1 is annular transitional groove, and 1.2 is nozzle, and 1.3 is small blind hole, and 2 is workpiece, and 3 is steel ball, and 3.1 is spring.
Embodiment
One-jet axially bored line linearity gauge head as shown in Figure 1, by columniform gauge head body 1, multiple accessory parts uniform on gauge head body 1 are formed, accessory part is then made up of steel ball 3 and spring 3.1, the axle center place of 1 gauge head body is the inlet channel arranged, radial direction is provided with the nozzle 1.2 be communicated with inlet channel, the gauge head body 2 at nozzle place establishes annular transitional groove 1.1, the sidewall of annular transitional groove 1.1 with inclined-plane to the transition of gauge head body 1 outside surface, can prevent dirt from depositing and ensure the precision of measurement, gauge head body 1 radial direction outside annular transitional groove 1.1 is evenly equipped with the small blind hole 1.3 holding steel ball 3 and spring 3.1, spring 3.1 is pressed in small blind hole 1.3 by steel ball 3, in order to the outer end circular diameter preventing steel ball from skidding off small blind hole 1.3 is slightly less than the diameter of steel ball 3, spring 3.1 supports steel ball 3, steel ball 3 can slightly in the radial direction of gauge head body 1 be floated, with the wall in hole of fitting, the wall in hole is shielded, simultaneously steel ball 3 floats with the plain line in hole and makes the axial line of gauge head body 1 keep motionless, better fit with nozzle 1.2 and air-gauge improve the precision measured.
The present invention is not limited to described embodiment, and those skilled in the art, not departing from spirit of the present invention namely openly in scope, still can do some and revise or change, therefore the scope that the scope of the present invention limits with claims is as the criterion.
Claims (2)
1. one-jet axially bored line linearity gauge head, comprise columniform gauge head body, multiple accessory parts that gauge head body is arranged, it is characterized in that: the axle center place of described gauge head body is provided with inlet channel, radial direction is provided with the nozzle be communicated with inlet channel, gauge head body corresponding to nozzle place is provided with annular transitional groove, the radial direction of the gauge head body outside annular transitional groove is evenly equipped with small blind hole, described accessory part is arranged in small blind hole, accessory part is made up of steel ball and spring, spring is pressed in small blind hole by steel ball, and small blind hole outer end circular diameter is slightly less than steel ball size.
2. one-jet axially bored line linearity gauge head according to claim 1, is characterized in that: described annular transitional groove sidewall with inclined-plane to the transition of gauge head body outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629844.2A CN104374346A (en) | 2014-11-10 | 2014-11-10 | Single-nozzle-hole axis straightness measuring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629844.2A CN104374346A (en) | 2014-11-10 | 2014-11-10 | Single-nozzle-hole axis straightness measuring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104374346A true CN104374346A (en) | 2015-02-25 |
Family
ID=52553402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410629844.2A Pending CN104374346A (en) | 2014-11-10 | 2014-11-10 | Single-nozzle-hole axis straightness measuring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104374346A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705900A (en) * | 2017-01-11 | 2017-05-24 | 浙江大学 | Hole form adaptive bore cylindricity pneumatic composite detection device and measuring method |
-
2014
- 2014-11-10 CN CN201410629844.2A patent/CN104374346A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705900A (en) * | 2017-01-11 | 2017-05-24 | 浙江大学 | Hole form adaptive bore cylindricity pneumatic composite detection device and measuring method |
| CN106705900B (en) * | 2017-01-11 | 2022-07-19 | 浙江大学 | Hole-shape-adaptive inner hole cylindricity pneumatic composite detection device and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |