CN200957482Y

CN200957482Y - Adjustable floating reamer bit

Info

Publication number: CN200957482Y
Application number: CN 200620098888
Authority: CN
Inventors: 周永和; 付杰勤
Original assignee: 717th Research Institute of CSIC
Current assignee: 717th Research Institute of CSIC
Priority date: 2006-09-08
Filing date: 2006-09-08
Publication date: 2007-10-10
Anticipated expiration: 2016-09-08

Abstract

The utility model relates to a floating adjustable overall reamer used in mechanical processing. Comprising a reamer, the utility model is unique in that the reamer is hinged with a fork transition joint at the upper end, which includes a fork transition fork body. The fork transition fork body is provided with a coring center internally, which is provided with an adjusting bolt at the upper end and a center at the lower end corresponding with the central hole at the upper end of the reamer. The utility model has the following beneficial effects: 1. the utility model adopts fork transition joint and adjustable coring center, which render adjustable reamer, transmit the torque of machine bed stably, eliminate errors caused by rigid holding, greatly enhance the cutting precision, and is capable of processing holes of Grade 3 precision without any trial cutting; 2. the structure is simple, and cost low; 3. the operation is simple, so the dependence on workers'processing technique is lowered, and the efficiency is enhanced.

Description

Adjustable monoblock type reamer floats

Technical field

The utility model relates to a kind of unsteady adjustable monoblock type reamer that uses in mechanical processing process.

Background technology

Reamer is extensively used in the fine finishining process in hole as a kind of machine tools, and at present, the reamer that is used to process mainly contains three types: the monoblock type reamer; Floating reamer by cutter hub and blade unit; Be connected to the monoblock type reamer of universal floating clamp.Wherein, the monoblock type reamer is convenient to use, but owing to adopt the rigidity clamping, can not guarantee the precision that reams, and is prone to the irregular phenomenon of processing, the processing precise instability; By the floating reamer of cutter hub and blade unit, mainly be fit to the processing of macropore; Adopt the monoblock type reamer of universal floating clamp, the precision of processing is higher, but complex structure is made difficulty, the cost height, and operation also comparatively bothers.

Summary of the invention

Technical problem to be solved in the utility model is the deficiency that exists at above-mentioned prior art and provide a kind of simple in structure, use easy to operate, the unsteady adjustable monoblock type reamer that machining accuracy is high.

The utility model adopts following technical scheme: comprise reamer body 5, its difference is that the upper end at reamer body 5 is hinged with the transit joint of fork-shaped, described transit joint comprises fork-shaped transit joint body 1, the centering top 2 that is provided with in the transit joint body, the top upper end configuration adjustment screw 3 of feeling relieved, the centre bore phase configuration of the top and reamer body upper end of the top lower end of feeling relieved.

By above-mentioned technical scheme, described reamer body 5 upper end shanks offer radial direction through hole, reamer body upper end shank inserts the endoporus of fork-shaped transit joint body 1 lower end, by bearing pin 4 reamer body and transit joint body are hinged, bearing pin 4 is 0.1-0.5 mm with the fit clearance of reamer body upper end through hole.

By above-mentioned technical scheme, the endoporus of described transit joint body 1 lower end and the fit clearance of reamer body 5 upper end shanks are 0.2-0.5mm.

By above-mentioned technical scheme, the cylindrical on the described transit joint body 1 and the axiality of endoporus are less than 0.05mm.

The utility model has been obtained following beneficial effect:

1, the utility model adopts the transit joint and the adjustable top centering of fork configuration, flexible centering, reamer body location is floated adjustable, energy smooth transfer machine torque, eliminated because the error that the rigidity clamping produces, improve the ream precision greatly, need not the aperture that trial cut just can be processed 3 class precisions;

2, simple in structure, low cost of manufacture;

3, easy and simple to handle in the use, the dependence of processor's process technology is reduced greatly, also effectively improved the efficient of processing.

Description of drawings

Fig. 1 is the main cutaway view of an embodiment of the utility model.

Fig. 2 is the sectional view of Fig. 1.

Fig. 3 is for being the A partial enlarged drawing among Fig. 1.

The specific embodiment

Further specify its embodiment of the present utility model below in conjunction with accompanying drawing.

Comprise reamer body 5, the upper end of reamer body is hinged with transit joint, described transit joint comprises that the lower end offers the fork-shaped transit joint body 1 of fork pockets, install centering top 2 in the transit joint body, centre bore phase configuration with reamer body upper end, the adjustment screw 3 that top upper end is provided with of feeling relieved is used to regulate top length to adapt to the reamer of different size; The endoporus of transit joint body 1 lower end and reamer body 5 upper end shank phase configuration, fit clearance is 0.4mm, the endoporus both sides are offered fork pockets and are formed forked element, install bearing pin 4 on the forked element, reamer body 5 upper end shanks insert the endoporus of transit joint body 1 lower end, by bearing pin 5 reamer body and transit joint body are hinged.The cylindrical on the transit joint body 1 and the axiality of endoporus are 0.04mm.When the reamer of hinged different size, can unload lower bearing pin and change reamer.During use, adopt drill chuck or Morse taper shank clamping transit joint can carry out ream processing.

Claims

1, a kind of adjustable monoblock type reamer that floats, comprise reamer body (5), it is characterized in that the upper end at the reamer body is hinged with the transit joint of fork-shaped, described transit joint comprises fork-shaped transit joint body (1), the centering top (2) that is provided with in the transit joint body, the top upper end configuration adjustment screw (3) of feeling relieved, the centre bore phase configuration of the top and reamer body upper end of the top lower end of feeling relieved.

2, by the described adjustable monoblock type reamer that floats of claim 1, it is characterized in that described reamer body upper end shank offers radial direction through hole, reamer body (5) upper end shank inserts the endoporus of fork-shaped transit joint body (1) lower end, by bearing pin (4) reamer body and transit joint body is hinged.

3,, it is characterized in that the bearing pin (4) and the fit clearance of reamer body upper end through hole are 0.1-0.5mm by the described adjustable monoblock type reamer that floats of claim 2.

4,, it is characterized in that the endoporus of described transit joint body (1) lower end and the fit clearance of reamer body (5) upper end shank are 0.2-0.5mm by claim 1 or the 2 described adjustable monoblock type reamers that float.

5, by claim 1 or the 2 described adjustable monoblock type reamers that float, the axiality that it is characterized in that cylindrical on the described transit joint body (1) and endoporus is less than 0.05mm.