CN202861553U

CN202861553U - Inflatable gear grinding clamp

Info

Publication number: CN202861553U
Application number: CN 201220452277
Authority: CN
Inventors: 成钢; 谭永耀
Original assignee: Jianglu Machinery and Electronics Group Co Ltd
Current assignee: Jianglu Machinery and Electronics Group Co Ltd
Priority date: 2012-09-06
Filing date: 2012-09-06
Publication date: 2013-04-10
Anticipated expiration: 2022-09-06

Abstract

The utility model relates to an inflatable gear grinding clamp. The inflatable gear grinding clamp comprises a cone-shaped clamp body (1) and an inflatable body (2). The inflatable gear grinding clamp is characterized in that the inflatable body encircles the upper portion of the outside clamp (1). Six open slots (3) are formed on the inflatable body, wherein the six open slots (3) are placed in the opposite direction. The inflatable body is moved downward by screwing down and compacting the nut. Squeezing action of the conical surface of the clamp body and uniform expansion of the excircle of the inflatable body enable extrusion force to be uniformly distributed on the internal hole surface of compacting products. An Inflatable structure generally eliminates tolerance clearance and enables higher repeated positioning accuracy to be achieved. The inflatable gear grinding clamp has good anti-vibration attenuation damping effect and can restrain vibration in the process of abrasive machining, so that surface roughness of a workpiece which is machined is obviously improved.

Description

The expansion type gear grinding clamp

Technical field

The utility model relates to the expansion type gear grinding clamp of the benchmark fine positioning clamping of applicable roll flute processing.

Background technology

The employed anchor clamps of roll flute are that the stiff shaft interporal lacuna cooperates at present, and the resetting error is problems to be solved always after the gear fine finishining, also is the key factor that affects Gear Production.No matter be location, inner cylinder face hole or location, hole, the large footpath of internal spline, the design of gear grinding clamp should reduce the shaft hole matching gap to greatest extent, and flexible location clamping mode is adopted in the design of this gear grinding clamp, realizes that substantially fit clearance is " 0 ".Should adopt the centering of large footpath when positioning reference plane is spline, this anchor clamps clamping time is short, and use can improve Product Precision.Can bring higher value to enterprise product, improve the competitiveness of enterprise.

Summary of the invention

For above deficiency, the utility model provides a kind of novel structure, brief, efficient inner circle location roll flute jig.

Expansion type gear grinding clamp structure comprises: clamp body 1, expander 2, wherein, expander is enclosed in the top of concrete 1 outside of tapered clamp, and is provided with 6 each other reverse open slots 3 on the expander.

Clamp body is comprised of a plurality of elements that affect, and according to the expander of different tooth Internal hole positioning diameter outfit different sizes, clamp body can be general, simultaneously the detachable use of anchor clamps.The technical conditions of overall co-ordination structure, anchor clamps using method and parts thereof.

These anchor clamps also are the employed accurate clamping device of roll flute, its principle is: by tightening clamp nut expander is moved down, the squeezing action of the clamp body conical surface, the expander cylindrical evenly enlarges makes the uniform compression product of extruding force inner hole surface, the expansion structure elimination fit clearance, realize higher repetitive positioning accuracy.6 each other reverse open slot work to be convenient to expander and open, while is expressed to the nubbin of the lubricators such as oil, grease in the annular groove under immense pressure, the cleaning and the drying that have kept the clamping locating surface, thereby the reliable delivery of assurance moment of torsion (set by accurate Calculation by expandable tool coning and opening groove width, thereby can when oil pressure reaches specified value, produce needed swell increment).

The expansion type gear grinding clamp has five advantages: 1) because the fit clearance that has been the expansion type elimination is outwards to expand equably, so have very high repetitive positioning accuracy simultaneously.2) have good anti-damping effect, it can suppress to produce vibration in the grinding, thereby obviously improves the surface roughness of workpiece to be machined.3) the product loading and unloading are very convenient, and the clamping time was less than 30 seconds.4) precision is high, circular runout＜3 μ m.5) high life＞20000 time.

Description of drawings

Fig. 1 is expansion type gear grinding clamp schematic diagram,

Fig. 2 is expander open slot schematic diagram.

The specific embodiment

The technical conditions of overall co-ordination structure, anchor clamps using method and parts thereof.Clamp body is comprised of a plurality of elements that affect, and according to the expander of different tooth Internal hole positioning diameter outfit different sizes, clamp body can be general, simultaneously the detachable use of anchor clamps.

These anchor clamps also are the employed accurate clamping device of roll flute, its principle is: by tightening clamp nut expander is moved down, squeezing action by the clamp body conical surface, make the uniform compression product of extruding force inner hole surface by even expansion of expander cylindrical, the expansion structure elimination fit clearance, realize higher repetitive positioning accuracy.6 each other reverse open slot work to be convenient to expander and open, while is expressed to the nubbin of the lubricators such as oil, grease in the annular groove under immense pressure, the cleaning and the drying that have kept the clamping locating surface, thereby the reliable delivery of assurance moment of torsion (set by accurate Calculation by expandable tool coning and opening groove width, thereby can when oil pressure reaches specified value, produce needed swell increment).

Claims

1. the expansion type gear grinding clamp comprises clamp body (1), expander (2), it is characterized in that, expander is enclosed in the outside top of tapered clamp concrete (1), and is provided with 6 each other reverse open slots (3) on the expander.