CN209279830U - A kind of thin-walled gear ring runout tolerance cubing - Google Patents

Abstract

The utility model belongs to run-out tolerance cubing technical field, more particularly to a kind of thin-walled gear ring runout tolerance cubing, including conical core shaft and positioning jacket, the positioning jacket and the gear ring are sequentially sleeved in the conical core shaft, the end face of the positioning jacket is bonded with the end face of the gear ring, through the location hole having with conical core shaft cooperation on the positioning jacket, the opening being connected to the location hole is offered on the positioning jacket, the locking assembly for lock opening is provided in the opening, when opening locking, the positioning jacket is axially positioned in conical core shaft, and the positioning jacket close to the end face of the gear ring perpendicular to the axis of the conical core shaft.

Description

A kind of thin-walled gear ring runout tolerance cubing

Technical field

The utility model belongs to run-out tolerance cubing technical field more particularly to a kind of inspection of thin-walled gear ring runout tolerance Tool.

Background technique

Gear ring machines end face, the conical surface, flank of tooth runout tolerance for needing to detect gear ring 3.As shown in Figure 1, thin-walled tooth Enclose 3 structures and circular runout requirement signal.The definition of the flank of tooth runout tolerance of gear ring 3 is circled in range in gear ring 3, Dial indicator measuring head in tooth socket with bidentate face contact, maximum variation of the gauge head relative to 3 axis of gear ring.End face, the conical surface diameter Meaning to bounce is similar to flank of tooth circular runout.

There are three types of common detection methods:

1. gapless, which is through, to be examined in conical core shaft by gear ring 3 with Internal hole positioning, conical core shaft is then located in beat On the two of instrument are top, dial indicator measuring head is pressed in tooth socket, circumference detects and record percentage meter reading, determines flank of tooth circular runout Tolerance value；Then, dial indicator measuring head is moved respectively to 3 end face of gear ring, the conical surface, and the gear ring 3 that circles detects and records dial gauge reading Number, measures their jitter values.

This method is to the fine row of diameter of bore 35mm gear-wheel gear-ring below 3, but to diameter of bore 50mm or more, inner hole Draw ratio (the ratio between interior hole length L and diameter of bore D, i.e. L/D value, see Fig. 1) reaches the thin-walled gear ring 3 of 1:10 or more, centering end Face is very time-consuming, and detection efficiency is low；It is both time-consuming when unloading lower ring gear 3 from conical core shaft 1 after having surveyed the bounce of gear ring 3 on deflection instrument It is again hard, 3 inner hole of gear ring is easily pulled, gear ring 3 is scrapped.Inspector's large labor intensity, is unfavorable in X -ray inspection X.

2. purchasing gear ring flank of tooth circular runout special gauge to specialized factory, detection 3 flank of tooth of gear ring bounce is convenient, fast. But the circular runout of end face and the conical surface cannot be detected.

3. to specialized factory order gear ring multi-panel beat special combination cubing, can detect simultaneously 3 end face of gear ring, the conical surface, The combined detection tool of flank of tooth circular runout, it is easy to detect, but the customized time is long, somewhat expensive.

Utility model content

For solve it is of the existing technology detection gear ring end face, the conical surface, the flank of tooth runout tolerance when, gear ring is in taper The problem of positioning accuracy is low on mandrel, and inner hole is easily pulled when unloading from conical core shaft lower ring gear, the utility model provides one Kind thin-walled gear ring runout tolerance cubing.

In order to solve the above technical problems, technical solution used by the utility model is as follows, a kind of thin-walled gear ring radially jump Dynamic tolerance cubing, including conical core shaft and positioning jacket, the positioning jacket and the gear ring are sequentially sleeved at the taper core On axis, the end face of the positioning jacket is bonded with the end face of the gear ring, and running through on the positioning jacket has and the taper core The location hole of axis cooperation, offers the opening being connected to the location hole on the positioning jacket, is arranged in the opening useful In the locking assembly of lock opening, when opening locking, the positioning jacket is axially positioned in conical core shaft, and described Positioning jacket is close to the end face of the gear ring perpendicular to the axis of the conical core shaft.

Preferably, the positioning jacket has the defining flange to extend radially outwardly close to one end of the gear ring.Increase Add the end face of defining flange to be bonded with the end face of gear ring, improves the reliability and precision of gear ring positioning；Positioning jacket is separate simultaneously The wall thickness of defining flange can be set relatively thin, and location hole can be made to have spring function, when being open in a free state, can protect Card positioning jacket moves without barrier in conical core shaft；When opening locking, bore dia elastic shrinkage is positioned, so that location hole It is fitted closely with conical core shaft, keeps gear ring axially position reliable.

Preferably, the locking assembly includes fastening bolt, the opening of the positioning jacket, which is outward extended with, picks up the ears, The fastening bolt passes through described pick up the ears for the locking that will be open.When tightening fastening bolt, bore dia elastic shrinkage is positioned, is made It obtains location hole to fit closely with conical core shaft, makes gear ring axially position, structure is simple, and it is convenient to operate, at low cost.

Further, the quantity at least two of the fastening bolt, at least two fastening bolts are along the taper The axial arranging of mandrel.It fits closely location hole with conical core shaft, guarantees end face and the conical core shaft axis of positioning jacket Verticality improves the positioning accuracy of positioning jacket.

Further, the positioning jacket selects spring steel.

The utility model has the advantages that

The thin-walled gear ring runout tolerance cubing of the utility model, positioning jacket, can be micro- under the compression of fastening bolt Amount shrinks positioning bore dia, so that positioning jacket and conical core shaft cooperate gapless, guarantees end face and the taper core of positioning jacket The verticality of axis axis；When the end face of gear ring is bonded with the end face of positioning jacket, remove the time of gear ring end face axial centering from, Improve production efficiency；

The thin-walled gear ring runout tolerance cubing of the utility model places cubing, taper core when unloading lower ring gear vertically The small end of axis downward, unclamps fastening bolt, positioning jacket diameter is micro to swell, and positioning jacket can freely move in conical core shaft Dynamic, at this point, pushing down on positioning jacket, positioning jacket pushes gear ring to move down, until lower ring gear is unloaded, due to positioning jacket end Face is circumferentially uniformly contacted with gear ring end face, so downward thrust is also circumferentially uniformly, to avoid thrust unevenness It is even and the phenomenon that pull inner hole of workpiece, workpiece caused to scrap, reduce rejection rate, it is time saving and energy saving, save manufacturing cost；

The manufacture of the thin-walled gear ring runout tolerance cubing of the utility model, it is simple, quick, it is dedicated to greatly save customization The expensive expense cost and time cost of combined detection tool.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of gear ring；

Fig. 2 is the schematic cross-sectional view of the utility model thin-walled gear ring runout tolerance cubing；

Fig. 3 is the schematic front view of the positioning jacket of the utility model thin-walled gear ring runout tolerance cubing；

Fig. 4 is the utility model thin-walled gear ring runout tolerance cubing disassembly status schematic diagram；

Arrow direction indicates thrust direction in Fig. 4；

In figure: 1, conical core shaft, 2, positioning jacket, 21, location hole, 22, defining flange, 23, opening, 24, pick up the ears, 25, Fastening bolt, 3, gear ring, 31, toothed region, 32, tapered portion, 41, top, 42, dial gauge, 5, workbench.

Specific embodiment

Embodiment

As shown in Figures 1 to 3, a kind of thin-walled gear ring runout tolerance cubing, the gear ring 3 include sequentially connected tooth form Portion 31 and tapered portion 32, the cubing include conical core shaft 1 and positioning jacket 2, and the positioning jacket 2 and the gear ring 3 successively cover It is located in the conical core shaft 1, the both ends end face of the positioning jacket 2 is each perpendicular to the axis of the conical core shaft 1, described fixed Position collet 2 end face be bonded with the end face of the gear ring 3, on the positioning jacket 2 run through have and the conical core shaft 1 cooperate Location hole 21 offers the opening 23 being connected to the location hole 21 on the positioning jacket 2, is arranged in the opening 23 useful In the locking assembly of lock opening 23, when 23 locking of opening, the positioning jacket 2 is axially positioned in conical core shaft 1, Specifically, the taper of location hole 21 is consistent with the taper of conical core shaft 1, and 21 diameter of location hole is than 1 maximum gauge of conical core shaft Big 0.02mm~0.04mm, the locking assembly includes fastening bolt 25, is outward extended at the opening 23 of the positioning jacket 2 Pick up the ears 24, the fastening bolt 25 pass through it is described pick up the ears 24 23 to lock for that will be open, the quantity of the fastening bolt 25 is at least It is two, axial arranging of at least two fastening bolts 25 along the conical core shaft 1.When opening 23 is in free state When, collet moves without barrier in conical core shaft 1；When tightening fastening bolt 25,21 diameter energy elastic shrinkage of location hole 0.04mm~0.06mm enables location hole 21 to fit closely with conical core shaft 1, to make 3 axially position of gear ring.

As shown in Figures 2 and 3, in order to improve positioning jacket 2 to the positioning accuracy of gear ring 3, the positioning jacket 2 is close to institute The one end for stating gear ring 3 has the defining flange 22 to extend radially outwardly, and the end face of defining flange 22 is bonded with the end face of gear ring 3. In order to improve the enclasping force of positioning jacket 2 Yu conical core shaft 1, the positioning jacket 2 selects spring steel.

As shown in Fig. 2, using on the cubing clamping to deflection instrument, the two of deflection instrument top 41 withstand on conical core shaft 1 respectively Both ends position the cubing, mobile 42 gauge head of dial gauge detects the flank of tooth runout tolerance of toothed region 31, tapered portion 32 respectively Conical surface runout tolerance and gear ring 3 end face run-out tolerance.

The clamping and detecting step of the fixture are as follows:

1. the positioning jacket 2 that opening 23 is in free state is set in conical core shaft 1, then gear ring 3 from taper core The small end of axis 1 is set in conical core shaft 1, then moves gear ring 3 until its inner hole and 1 gapless of conical core shaft；

2. running fix collet 2 until its end face is contacted with the end face of gear ring 3, then tightens fastening bolt 25, by locating clip Set 2 is fixed in conical core shaft 1；

3. correcting gear ring 3, it is bonded the end face of gear ring 3 completely with collet right side, at this time the inner hole and taper core of gear ring 3 Axis 1 is interference fitted, and gear ring 3 is located in conical core shaft 1；

4. conical core shaft 1 is located on the two top 41 of deflection instrument, 42 gauge head of dial gauge is pressed in the tooth of toothed region 31 In slot, the gear ring 3 that circles detects and records the reading of dial gauge 42, measures the flank of tooth runout tolerance of toothed region 31；It moves again For 42 gauge head of dial gauge to tapered portion 32, the gear ring 3 that circles detects and records the reading of dial gauge 42, measures the conical surface diameter of tapered portion 32 To run-out tolerance；42 gauge head of dial gauge is moved again to 3 end face of gear ring, and the gear ring 3 that circles detects and record the reading of dial gauge 42, surveys The end face run-out tolerance of fixed tooth circle 3；

5. unloading the cubing from deflection instrument, be placed on workbench 5 vertically, the small end of conical core shaft 1 downward, such as Fig. 4 It is shown, fastening bolt 25 is unclamped, pushes down on positioning jacket 2, positioning jacket 2 pushes gear ring 3 to move down, until unloading lower ring gear 3, because 2 end face of positioning jacket is circumferentially uniformly contacted with 3 end face of gear ring, so downward thrust is also circumferentially uniform , the phenomenon that avoiding thrust unevenly and pull inner hole of workpiece, workpiece is caused to scrap, reduces rejection rate, saved manufacture Cost.

Claims (5)

1. a kind of thin-walled gear ring runout tolerance cubing, it is characterised in that: including conical core shaft (1) and positioning jacket (2), institute State positioning jacket (2) and the gear ring (3) be sequentially sleeved on the conical core shaft (1), the end face of the positioning jacket (2) with The end face of the gear ring (3) is bonded, through the location hole having with the conical core shaft (1) cooperation on the positioning jacket (2) (21), the opening (23) being connected to the location hole (21) is offered on the positioning jacket (2), is arranged on the opening (23) There is the locking assembly for lock opening (23), when the opening (23) locking, the positioning jacket (2) is axially positioned on cone It spends on mandrel (1), and the end face of the positioning jacket (2) close the gear ring (3) is perpendicular to the axis of the conical core shaft (1) Line.

2. thin-walled gear ring runout tolerance cubing according to claim 1, it is characterised in that: the positioning jacket (2) One end close to the gear ring (3) has the defining flange (22) to extend radially outwardly.

3. thin-walled gear ring runout tolerance cubing according to claim 1 or 2, it is characterised in that: the locking assembly Including fastening bolt (25), it is outward extended with pick up the ears (24) at the opening (23) of the positioning jacket (2), the fastening bolt (25) described pick up the ears (24) are passed through for (23) locking that will be open.

4. thin-walled gear ring runout tolerance cubing according to claim 3, it is characterised in that: the fastening bolt (25) Quantity at least two, axial arranging of at least two fastening bolts (25) along the conical core shaft (1).

5. thin-walled gear ring runout tolerance cubing according to claim 1 or 2, it is characterised in that: the positioning jacket (2) spring steel is selected.