CN208728840U - A kind of gear hobbing mandrel - Google Patents

Abstract

The utility model discloses a kind of gear hobbing mandrels, including mounting base and mandrel main body, the mandrel main body includes positioning shaft part, processing shaft part and the guiding shaft part that outer diameter is sequentially reduced, the processing shaft part, which is arranged, is fixed with holding set, the holding is put on equipped with several fixation holes, be equipped in fixation hole steel ball and with the processing shaft part makes point contact；The positioning shaft part is equipped with a cavity beyond the wall portion of the processing shaft part, sliding slot is equipped in the cavity, the cavity is built-in with arc storage box, and arc storage box is equipped with sliding rail, and the sliding rail is matched with the sliding slot, the arc storage box cross section is circular arc, and arc storage box bottom is equipped with electromagnet；The utility model can reduce the contact area with work gear to be added, reduce abrasion, to extend the service life of every gear hobbing mandrel, and can efficiently collect the function of steel ball and iron filings.

Description

A kind of gear hobbing mandrel

Technical field

The utility model relates to external gear manufacture field, especially a kind of gear hobbing mandrel.

Background technique

When external gear is processed, mandrel positioning is extremely important, such as positions and is not allowed, and prize is easy cheaply to cause in workpiece in processing Outer shaft degree is inconsistent, is unable to reach required precision.

By retrieval, Authorization Notice No. is a kind of Chinese patent " high-accuracy processing core of peripheral milling of 207548343 U of CN Axis ", which discloses a kind of high-accuracy processing mandrel of peripheral milling, including main body and fixed ring, it is characterised in that: on mandrel It is cased with a holding set, one end of the mandrel is equipped with the shaft shoulder, and the other end is equipped with fixed ring；The end face of mandrel is equipped with top heart hole； In processing, by keeping the effect blind-mate of ball in covering between mandrel and workpiece, it ensure that workpiece both ends process When stability, improve the processing quality of longer class workpiece, reach required requirement on machining accuracy.

But there are the following problems for this scheme: but the patent is inconvenience in replacement steel ball, steel ball is scattered, also inconvenient The iron filings inconvenience cleaning generated when picking up, and processing, leads to Gear Processing low efficiency.

Utility model content

To solve the above problems, the utility model discloses a kind of gear hobbing mandrels, including mounting base and core Shaft body, the mandrel main body include positioning shaft part, processing shaft part and the guiding shaft part that outer diameter is sequentially reduced, the processing axis Section, which is arranged, is fixed with holding set, which puts on equipped with several fixation holes, be equipped in fixation hole steel ball and with the processing shaft part Makes point contact；The positioning shaft part is equipped with a cavity beyond the wall portion of the processing shaft part, is equipped with sliding slot, the sky in the cavity It is intracavitary to be equipped with arc storage box, and arc storage box is equipped with sliding rail, and the sliding rail is matched with the sliding slot, the arc storage box is horizontal Section is circular arc, which is the 1/2-2/3 of circumference where the circular arc, and arc storage box bottom is equipped with electromagnetism Iron, the electromagnet are electrically connected with control mechanism, and the control mechanism includes circuit board, battery and control switch, circuit board and electricity Pond is connect with control switch respectively, when the arc storage box is extracted out in use, battery is passed through circuit board by control switch It is electrically connected with the electromagnet；The mounting base is equipped with installation through-hole.

Preferably, the guiding axis section surface is set as scalene cone, and guiding is facilitated to install work gear to be added.

Preferably, the diameter of the steel ball is greater than the fixed hole diameter, and the steel ball covers outer surface beyond the holding Volume be the steel ball volume 1/3-1/2, be effectively ensured steel ball keep set in stability.

Preferably, at least seven location hole is additionally provided in the mounting base, installation personnel can use the positioning as needed Hole carries out triangle or Corner Strapped, and versatility is high, installs more stable.

Preferably, the length of the positioning shaft part is greater than the processing shaft part length.

Preferably, the radical length of the arc storage box is greater than or equal to holding set length.

Preferably, the mounting base and mandrel main body junction outer rim chamfering structure.

Preferably, the positioning shaft part also matches close to the end face of the processing shaft part and is equipped with dustproof cover, when not in use, energy Enough prevent dust from entering in cavity sliding slot.

Preferably, the guiding shaft part end face is equipped with conical aperture, facilitates positioning.

Preferably, it is additionally provided with clamping shaft part between the guiding shaft part and processing shaft part, the cross section of the clamping shaft part is straight Diameter is less than end face diameter of the guiding shaft part far from the conical aperture direction, can facilitate in processing and adjust and treat It processes gear positioning and/or the steel ball outer surface is equipped with corrosion and wear layer, enhance wear-resisting property, prolong the service life.

The utility model has the beneficial effects that (1) keeps being equipped with steel in set by being arranged holding set outside processing shaft part Pearl can reduce the contact area with work gear to be added, abrasion be reduced, to extend the service life of every gear hobbing mandrel；(2) By positioning shaft part in be arranged arc storage box, can after process finishing to processing iron filings collection, and replacement roll Ball is stored when pearl, reduces workload；(3) by setting electromagnet and control mechanism, magnetic is generated after being powered according to electromagnet Property, there is adsorption capacity to iron filings and steel ball, further improve storage quickly and efficiently, avoid ball from tumbling, convenient and efficient height Effect.

Detailed description of the invention

Fig. 1 is the utility model Structure explosion diagram；

Fig. 2 is the utility model perspective view；

Fig. 3 is the utility model main view；

Fig. 4 is the utility model left view；

Fig. 5 is the circuit diagram of control mechanism；

In figure, 1- mounting base, 2- positions shaft part, and 3- processes shaft part, and 4- clamps shaft part, and 5- is oriented to shaft part, 6- steel ball, 7- Keep set, 101- installation through-hole, 102- location hole, 201- arc storage box, 202- control mechanism, 203- dustproof cover, 204- electricity Magnet, 501- cone aperture.

Specific embodiment

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another It is described, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

It elaborates with reference to the accompanying drawing to specific embodiment of the utility model.

Embodiment 1

As shown in Figs 1-4, a kind of gear hobbing mandrel, including mounting base 1 and mandrel main body, the mandrel main body includes outer diameter Positioning shaft part 2, processing shaft part 3 and the guiding shaft part 5 being sequentially reduced, the processing shaft part 3, which is arranged, is fixed with holding set 7, this Embodiment will keep set 7 and the processing shaft part 3 fixed using positioning pin, and holding set 7 is consolidated equipped with several apertures are equal Determine hole, be equipped in fixation hole steel ball 6 and with 3 makes point contact of processing shaft part, the diameter of the steel ball is greater than the fixation hole Diameter, and the steel ball 6 is the 1/3 of the steel ball volume beyond the volume for keeping 7 outer surfaces of set, and steel ball is effectively ensured and exists Keep the stability in set；The positioning shaft part 2 is equipped with a cavity beyond the wall portion of the processing axis 3, is equipped with and slides in the cavity Slot, which is built-in with arc storage box 201, and arc storage box 201 is equipped with sliding rail and matches with the sliding slot, arc storage 201 cross section of box is circular arc, which is 2/3 of circumference where the circular arc, 201 bottom of the arc storage box installation There is electromagnet 204, which is electrically connected with control mechanism 202, and as shown in Fig. 5, the control mechanism 202 includes circuit Plate, battery and control switch, circuit board and battery are connect with control switch respectively, are extracted out and are used when the arc storage box 201 When, battery is electrically connected by circuit board with the electromagnet by control switch；The mounting base is equipped with installation through-hole 101。

Preferably, the length of the positioning shaft part 2 is greater than the length of the processing shaft part 3.

Preferably, the radical length of the arc storage box 201 is greater than or equal to the holding 7 length of set.

Preferably, the mounting base 1 and mandrel main body junction outer rim chamfering structure.

Preferably, the positioning shaft part 2 also matches close to the end face of the processing shaft part 3 and is equipped with dustproof cover 203, does not use When, it can prevent dust from entering in sliding slot.

Preferably, 5 end face of guiding shaft part is equipped with conical aperture 501, facilitates positioning.

Preferably, the guiding shaft part 5 and processing shaft part 3 between be additionally provided with clamping shaft part 4, the clamping shaft part 4 it is transversal Face diameter is less than the end face diameter far from the conical aperture 501 of the guiding shaft part 5, can facilitate adjustment in processing And gear to be processed is positioned, 6 outer surface of steel ball is equipped with corrosion and wear layer, enhances wear-resisting property, prolongs the service life.

In use, control switch is in off state, i.e., electromagnet 204 is nonmagnetic；Installation fixation first is carried out to mounting base 1, Work gear to be added is inserted in from guiding shaft part one end and is positioned at the outside for keeping set, according to the size and holding of external gear to be processed The length of set 7, can place multiple external gears to be processed simultaneously, positioned in clamping shaft part using fixture or fixture block, made simultaneously Conical aperture 501 is lived with hydraulic top pinnacle and starts operation, after operation, such as needs to change steel ball 6, dustproof cover 203 is opened, It extracts arc storage box 201 out, keeps set 7 under dismantling, open control switch, electromagnet is powered with magnetism, and ball can be quick Enter in arc storage box 201, and ball 6 is not easy to roll；If you need to remove iron filings, electromagnet can inhale iron filings after energization It is attached in arc storage box 201, then concentrates storage iron filings to its elsewhere again, collected convenient for management.

For the utility model when in use by being arranged holding set 7 outside processing shaft part 3, holding, which covers, is equipped with steel ball 6 in 7, The contact area with work gear to be added can be reduced, abrasion is reduced, to extend the service life of every gear hobbing mandrel；By Position shaft part 2 in be arranged arc storage box 201, can after process finishing to processing iron filings collection, and replacement ball 6 When store ball, reduce workload, it is convenient and efficient；(3) by setting electromagnet and control mechanism, after being powered according to electromagnet It generates magnetic, there is adsorption capacity to iron filings and steel ball 6, further improve storage quickly and efficiently, steel ball 6 is avoided to tumble and iron Bits scatter.

Embodiment 2

The present embodiment is to be further optimized on the basis of embodiment 1, and specifically described 5 surface of guiding shaft part is set For scalene cone, facilitate guiding that work gear to be added is installed.

At least seven location hole is additionally provided in the mounting base, installation personnel can be carried out using the location hole as needed Triangle or Corner Strapped, versatility is high, installs more stable.

Above-described embodiment only describes the optimal usage mode of existing equipment, and similar conventional machinery means is used to replace this reality The element in example is applied, protection scope is each fallen within.

Claims (10)

1. a kind of gear hobbing mandrel, it is characterised in that: including mounting base (1) and mandrel main body, the mandrel main body includes outer diameter Positioning shaft part (2), processing shaft part (3) and guiding shaft part (5) being sequentially reduced, the processing shaft part (3), which is arranged, is fixed with guarantor Hold set (7), which is equipped with several fixation holes, be equipped in fixation hole steel ball (6) and with processing shaft part (3) table Millet cake contact；Positioning shaft part (2) is equipped with a cavity beyond the wall portion of processing shaft part (3), is equipped with sliding slot in the cavity, The cavity is built-in with arc storage box (201), and arc storage box (201) is equipped with sliding rail, and the sliding rail is matched with the sliding slot, Arc storage box (201) cross section is circular arc, which is the 1/2-2/3 of circumference where the circular arc, the arc Storage box (201) bottom is equipped with electromagnet (204), which is electrically connected with control mechanism (202), the control Mechanism (202) includes circuit board, battery and control switch, and circuit board and battery are connect with control switch respectively, when the arc Battery in use, be electrically connected by circuit board with the electromagnet (204) by storage box (201) extraction by control switch；Institute Mounting base (1) is stated equipped with installation through-hole (101).

2. a kind of gear hobbing mandrel according to claim 1, it is characterised in that: guiding shaft part (5) surface is set as oblique cone Face.

3. a kind of gear hobbing mandrel according to claim 2, it is characterised in that: steel ball (6) diameter is greater than the fixation Bore dia, and the steel ball (6) is the 1/3-1/2 of the steel ball (6) volume beyond the volume for keeping set (7) outer surface.

4. a kind of gear hobbing mandrel according to claim 3, it is characterised in that: be additionally provided at least seven on the mounting base (1) Location hole (102).

5. a kind of gear hobbing mandrel according to claim 4, it is characterised in that: the length of positioning shaft part (2) is greater than institute State processing shaft part (3) length.

6. a kind of gear hobbing mandrel according to claim 5, it is characterised in that: the radial direction of the arc storage box (201) is long Degree is greater than or equal to the holding and covers (7) length.

7. a kind of gear hobbing mandrel according to claim 6, it is characterised in that: the mounting base (1) and the mandrel main body Junction outer rim chamfering structure.

8. a kind of gear hobbing mandrel according to claim 7, it is characterised in that: the positioning shaft part (2) is close to the processing The end face of shaft part (3), which also matches, is equipped with dustproof cover (203).

9. a kind of gear hobbing mandrel according to claim 8, it is characterised in that: the guiding shaft part (5) end face is equipped with circular cone Shape aperture (501).

10. a kind of gear hobbing mandrel described in any one according to claim 1~9, it is characterised in that: the guiding shaft part (5) Clamping shaft part (4) is additionally provided between processing shaft part (3), the cross-sectional diameter of the clamping shaft part (4) is less than the guiding shaft part (5) end face diameter and/or the steel ball (6) outer surface far from the conical aperture direction are equipped with corrosion and wear layer.