CN208358782U - A kind of shaft blank scribing line centering tooling - Google Patents

Abstract

The utility model motor scribing tooling field, specifically a kind of shaft blank scribing line centering tooling, it is intended to solve the technical problems such as existing shaft scribing line low efficiency, high labor cost, drawn line quality difference.Mainly use following technical scheme: including mandrel, the outer wall thread of the mandrel is connected with movable sleeve, the movable sleeve evagination is formed with shoulder block, the movable sleeve outer wall gap package has moving-coil, the movable sleeve is also fixedly connected with the retaining ring of limit moving-coil axial movement, the outer wall diameter convex of the moving-coil has several interconnecting pieces being evenly distributed, and the interconnecting piece is hinged with guide rod；One end of the mandrel is fixed or integrally formed with positioning disk, the center of the mandrel and positioning disk offers through-hole of the axial distribution to intert sample punching jointly, the positioning disk corresponds to the guide rod and is circumferentially evenly equipped with several pilot holes, and the guide rod passes through the pilot hole and the one end not connecting with interconnecting piece is hinged with claw.The utility model is mainly used for shaft scribing process.

Description

A kind of shaft blank scribing line centering tooling

Technical field

The utility model relates to motor scribing tooling field, specifically a kind of shaft blank scribing line centering tooling.

Background technique

Shaft occupies sizable ratio in motor accessory, and a procedure of shaft processing key is exactly at axis both ends Draw center line, centering in face.Since shaft blank is mostly forging, periphery surplus is uneven, crosses for a long time in shaft end face Looking for the heart is a working difficult point of shaft processing, and the existing process generally used is exactly to look for the heart with 3 points of divider: using divider In shaft end face, 3 points of circumference uniform distribution are divider anchor point, using the radius of axis as radius, draw circular arc, circular arc intersection in spindle nose end face Point can look for the heart with approximatioss approximation if cannot intersect for the shaft end center of circle.Not only working efficiency is low in this way, while low precision of crossing, Also there is higher requirement to operator's technical level, often will appear the problems such as centre bore trains off, roughing surplus is inadequate, so It is badly in need of a kind of scribing line centering tooling of shaft blank now, to solve the above problems.

Utility model content

The utility model aims to solve the problem that the technical problems such as existing shaft scribing line low efficiency, high labor cost, drawn line quality difference. For this purpose, the utility model proposes a kind of shaft blank scribing line centering toolings.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of shaft blank scribing line centering tooling, including mandrel, the outer wall thread of the mandrel are connected with movable sleeve, activity Set can be moved on the outer wall of mandrel by the screw thread, and movable sleeve axial direction one end radial direction evagination is formed with shoulder block, described Movable sleeve outer wall gap package has moving-coil, and gap package ensures that moving-coil will not rotate, the activity with the rotation of movable sleeve The retaining ring that the axial other end is fixedly connected with limit moving-coil axial movement is covered, so-called limit moving-coil is axially moved here, according to this Well known to field, be readily apparent that the diameter Relationship of retaining ring and moving-coil: the outer diameter of retaining ring is greater than the interior of the internal diameter of moving-coil and retaining ring Diameter is less than the outer diameter of moving-coil, and shoulder block and retaining ring realize the axial limiting of moving-coil jointly, so that movable sleeve also can when being axially moved Moving-coil is driven to be axially moved, the outer wall diameter convex of the moving-coil has at least three interconnecting pieces being evenly distributed, the connection Portion is hinged with guide rod；One end of the mandrel is fixed or integrally formed with positioning disk, and the center of the mandrel and positioning disk is common Through-hole of the axial distribution to intert sample punching is offered, the positioning disk corresponds to the guide rod and is circumferentially evenly equipped at least three axis To the pilot hole of distribution, the guide rod passes through the pilot hole and one end for connect with interconnecting piece is hinged with to hold tightly turn The claw of the axial plane of axis, the diameter of the pilot hole are greater than the diameter of guide rod.In use, rotary moveable set first, makes it along core Axis is mobile close to shaft, and moving-coil is mobile close to shaft therewith, drives angle between guide rod to become larger, finally results in shape between claw At the diameter that seizes become larger, greater than the diameter of shaft, at this moment tooling is placed in the end of shaft, then reverse operating, rotation live Dynamic set, moves it far from shaft along mandrel, and moving-coil is mobile far from shaft therewith, drives angle between guide rod to become smaller, finally The diameter that seizes for causing to be formed between claw becomes smaller, and shaft is held tightly, during seizing diameter and becoming smaller, in case of tooling Eccentric situation, part first will receive the radial force of shaft with the claw of shaft contacts, and driving tooling moves integrally, thus by core Axis is adjusted to center, realizes self-centering, and after claw locks shaft, the hand-held sample punching of operator is passed through from through-hole draws a design Punching, marks the center of shaft；When needing to remove tooling, rotary moveable set, makes it close to shaft again.

The beneficial effects of the utility model are: the utility model provides a kind of shaft blank scribing line centering tooling, Neng Goushi Show the self-centering of shaft blank, relatively existing artificial use divider is felt relieved, and substantially increases scribing line efficiency, former divider is determined Each shaft 10 minutes of the heart have become present 3 minutes, and after the tooling of use the utility model, greatly reduce because of axis The partially caused axis of the heart processes the quality accident scrapped.

Detailed description of the invention

Fig. 1 is the assembling structure schematic diagram of the utility model；

Fig. 2 is the left view structural representation in Fig. 1.

Specific embodiment

Referring to figs. 1 to Fig. 2, a kind of shaft blank scribing line centering tooling of the utility model, including mandrel 1, the mandrel 1 Outer wall thread be connected with movable sleeve 2, movable sleeve 2 can be moved on the outer wall of mandrel 1 by the screw thread, the movable sleeve 2 Axial one end radial direction evagination is formed with shoulder block 21, and the 2 outer wall gap package of movable sleeve has moving-coil 3, and gap package ensures moving-coil 3 It will not be rotated with the rotation of movable sleeve 2, the axial other end of the movable sleeve 2 is fixedly connected with limit moving-coil 3 and moves axially Retaining ring 4, it is preferred that retaining ring 4 is fixed by screws in the end of movable sleeve, and shoulder block 21 and retaining ring 4 realize the axis of moving-coil 3 jointly To limit, so that movable sleeve 2 can also drive moving-coil 3 to be axially moved when being axially moved, the outer wall diameter convex of the moving-coil 3 has edge At least three circumferentially uniformly distributed interconnecting pieces 31, the interconnecting piece 31 are hinged with guide rod 5；One end of the mandrel 1 is fixed or one Form positioning disk 6, the center of the mandrel 1 and positioning disk 6 offers an axial distribution to intert the logical of sample punching 9 jointly Hole, the corresponding guide rod 5 of the positioning disk 6 is circumferential to be evenly equipped at least three pilot holes 61 being axially distributed, and the guide rod 5 passes through The pilot hole 61 and the one end not connecting with interconnecting piece 31 are hinged with the claw 7 of the axial plane to hold shaft tightly.In use, Rotary moveable set 2 first, moves it close to shaft along mandrel 1, and moving-coil 3 is mobile close to shaft therewith, drives between guide rod Angle becomes larger, and finally results in the diameter that seizes formed between claw 7 and becomes larger, and greater than the diameter of shaft, is at this moment placed in tooling and turns The end of axis, then reverse operating, rotary moveable set 2 move it far from shaft along mandrel 1, and moving-coil 3 is moved far from shaft therewith It is dynamic, it drives angle between guide rod to become smaller, finally results in the diameter that seizes formed between claw 7 and become smaller, shaft is held tightly, embracing During shaft diameter becomes smaller, in case of the situation of tooling bias, part first will receive shaft with the claw 7 of shaft contacts Radial force, driving tooling moves integrally, so that mandrel 1 is adjusted to center, realizes self-centering, when the locking of claw 7 turns After axis, operator holds sample punching 9 and passes through punching 9 of drawing a design from through-hole, marks the center of shaft；When needing to remove tooling, revolve again Turn movable sleeve 2, makes it close to shaft.

As a further improvement of the above technical scheme, the inboard root of the shoulder block 21 of the movable sleeve 2 is provided with chamfering, One end inner ring of the moving-coil 3, which is set, abuts the chamfering, is formed and is had the gap between the other end and the retaining ring 4 of the moving-coil 3. Gap package of the moving-coil 3 on 2 outer wall of movable sleeve, and axial one end abuts chamfering, the other end and retaining ring 4 form gap, so Also there is activity space in 3 axial direction of moving-coil, but chamfering and the axial direction of the limit moving-coil 3 of retaining ring 4 substantially move, so, when 2 axis of movable sleeve To when movement, moving-coil 3 is driven to be axially moved, and the setting of clearance fit and gap, so that moving-coil 3 will not be with movable sleeve 2 Rotation and rotate, ensured reliability of structure.On the other hand, the setting of chamfering reduces the contact of moving-coil 3 with shoulder block 21 Area reduces resistance when movable sleeve 2 rotates between moving-coil 3.

As a kind of preferred structure of claw 7, the claw 7 is set as being adapted to shaft axial plane with the position of shaft contacts Obtuse angle type or circular arc type, so-called obtuse angle type is exactly to be made of with the position of shaft contacts both sides, both sides respectively and shaft it is outer Wall is circumscribed and is arranged at obtuse angle, obtuse angle type or arc-shaped to clamp shaft stronger.

As a kind of preferred connection type of claw 7 and guide rod 5, the guide rod 5 passes through with claw 7 perpendicular to 1 axis of mandrel To directional spreding hinged shaft it is hinged.It swing claw 7 can in axial sides, when guide rod 5 moves, drive Claw 7 moves axially, so that it is mobile more convenient flexible, when needing to compress, the contact surface of claw 7 and shaft outer wall can be passed through The effect of power ajust claw 7, it is more convenient to use.

For the intensity and rigidity for enhancing positioning disk 6, connected between the mandrel 1 and positioning disk 6 by round table-like reinforcement Part 8 connects, and the bigger diameter end of rotary table is contacted with positioning disk 6, miner diameter end is contacted with mandrel 1.

The above specific structure and dimension data are illustrated to the preferred embodiment of the utility model, but this reality It is not limited to the specific embodiments with novel creation, those skilled in the art are in the premise without prejudice to the spirit of the present invention Various equivalent deformation or replacement can be also made down, these equivalent deformations or replacement are all contained in the claim of this application and are limited In fixed range.

Claims (5)

1. a kind of shaft blank scribing line centering tooling, it is characterised in that: including mandrel (1), the outer wall thread of the mandrel (1) connects It is connected to movable sleeve (2), the axial one end radial direction evagination of the movable sleeve (2) is formed with shoulder block (21), between movable sleeve (2) outer wall Gap is set with moving-coil (3), and the axial other end of the movable sleeve (2) is fixedly connected with the retaining ring of limit moving-coil (3) axial movement (4), the outer wall diameter convex of the moving-coil (3) has at least three interconnecting pieces (31) being evenly distributed, the interconnecting piece (31) It is hinged with guide rod (5)；One end of the mandrel (1) is fixed or integrally formed with positioning disk (6), the mandrel (1) and positioning disk (6) center offers through-hole of the axial distribution to intert sample punching (9), the corresponding guide rod of the positioning disk (6) jointly (5) circumferential to be evenly equipped at least three pilot holes (61) being axially distributed, the guide rod (5) passes through the pilot hole (61) and not The one end connecting with interconnecting piece (31) is hinged with the claw (7) to hold shaft axial plane tightly, and the diameter of the pilot hole (61) is big Diameter in guide rod (5).

2. a kind of shaft blank scribing line centering tooling according to claim 1, it is characterised in that: the movable sleeve (2) The inboard root of shoulder block (21) is provided with chamfering, and one end inner ring of the moving-coil (3) abuts the chamfering, the moving-coil (3) It is formed and is had the gap between the other end and the retaining ring (4).

3. a kind of shaft blank scribing line centering tooling according to claim 1 or 2, it is characterised in that: the claw (7) with The position of shaft contacts is set as the obtuse angle type or circular arc type being adapted to shaft axial plane.

4. a kind of shaft blank scribing line centering tooling according to claim 3, it is characterised in that: the guide rod (5) and card Pawl (7) is hinged by the hinged shaft being distributed perpendicular to mandrel (1) axially direction.

5. a kind of shaft blank scribing line centering tooling according to claim 1, it is characterised in that: the mandrel (1) with lead Connected between disk (6) by round table-like reinforcement connector (8), the bigger diameter end of rotary table contacts with positioning disk (6), miner diameter end and Mandrel (1) contact.