CN209190163U - Transition arc cold breakdown pressure device - Google Patents

Abstract

The utility model relates to a kind of transition arc cold breakdown pressure devices that cold rolling is carried out for step Shaft Parts transition arc, including band, there are two the ontologies of support arm, the rolling wheel of installation on the body, rolling wheel is mounted on mandrel by bearing, positioning table is had on the mandrel, bearing is installed in the side of positioning table, rolling wheel is mounted on bearings, and the arc diameter of rolling wheel outer rim is consistent with the transition arc diameter that needs roll；Two support arm ends of ontology offer U-lag, and the mandrel for installing bearing and rolling wheel is mounted in the U-lag of two support arm ends of ontology；Cold rolling is carried out by the transition arc of the sizes specification to various step Shaft Parts products, the surface quality, hardness and wearability of transition arc can be improved, to improve the fatigue resistance of product, corrosion resistance and service life.

Description

Transition arc cold breakdown pressure device

Technical field

The utility model belongs to field of machining, more particularly to a kind of for the progress cold breakdown of step Shaft Parts transition arc The transition arc cold breakdown pressure device of pressure.

Background technique

For the service life for improving product, the transition arc of many step Shaft Parts products must carry out cold rolling, it is therefore an objective to Its hardness and wearability are improved, while improving the fatigue resistance of product, corrosion resistance.Have at present the product of such processing request compared with It is more, and transition arc is sizes specification, to guarantee product requirement, improves processing efficiency and reduces production cost, need to set A kind of device for cold rolling sizes specification transition arc is counted.

Summary of the invention

One kind is provided the purpose of the utility model is to overcome the deficiencies in the prior art to various Step Shaft classes The transition arc of the sizes specification of part product carries out cold rolling, improves the surface quality, hardness and wearability of transition arc, To improve the transition arc cold breakdown pressure device that the fatigue resistance, corrosion resistance and service life of product require.

The technical solution of the utility model is achieved in that a kind of transition arc cold breakdown pressure device, including there are two bands Ontology, the rolling wheel of installation on the body of support arm, it is characterised in that: rolling wheel is mounted on mandrel by bearing, the core Positioning table is had on axis, bearing is installed in the side of positioning table, rolling wheel is mounted on bearings, and the circular arc of rolling wheel outer rim is straight Diameter is consistent with the transition arc diameter for needing to roll；Two support arm ends of ontology offer U-lag, install bearing and rolling The mandrel of wheel is mounted in the U-lag of two support arm ends of ontology.

In the flat that the both ends of mandrel are milled with, the upper and lower surface phase of the U-lag on two support arms of the flat and ontology left side Pair and be inserted into U-lag.

The ontology for having installed bearing, rolling wheel and mandrel is securedly mounted on lathe saddle by housing screw.

The ontology is cuboid, is milled with oblique notch in the left lower of ontology, upper plane is lower than on the right side of the ontology of milling Upper plane on the left of ontology, position is provided with through slot among the left side of ontology, is provided with U-lag on two support arms on the left of ontology, Mandrel both ends symmetrically mill flat.

The positioning table is located in the middle part of mandrel position of keeping right, and bearing is mounted on the left side of mandrel positioning table.

The rolling wheel is the circular cone stage body that center portion is through-hole.

The utility model has the advantages that the sizes that can be realized by the present apparatus to various step Shaft Parts products The transition arc of specification carries out cold rolling, and rolls different transition arcs and only need to change rolling wheel, simple and efficient to handle, mentions High processing efficiency and reduction production cost；It is carried out by the transition arc of the sizes specification to various step Shaft Parts products Cold rolling, can be improved the surface quality, hardness and wearability of transition arc, to improve the fatigue resistance of product, corrosion-resistant Property and service life.

Detailed description of the invention

Fig. 1 is the schematic diagram of shaft forgings product transition arc.

Fig. 2 is the structural schematic diagram of the cold breakdown pressure device of the utility model.

Fig. 3 is the top view of the cold rolling apparatus structure of the utility model.

Fig. 4 is the schematic diagram of the rolling wheel in the utility model.

Fig. 5 is the structural schematic diagram of the mandrel in the utility model.

Fig. 6 is the A-A cross-sectional view of the mandrel in the utility model.

Fig. 7 is the structural schematic diagram of the ontology in the utility model.

Fig. 8 is the top view of the body construction in the utility model.

It is marked in figure are as follows: 1, ontology；2, mandrel；3, bearing；4, rolling wheel.

Specific embodiment

As shown in Figure 1, product is the schematic diagram that shaft forgings product has transition arc in figure.As shown in Figure 2,3, a kind of mistake Circular arc cold breakdown pressure device is crossed, including band there are two the ontology 1 of support arm, the rolling wheel 4 being mounted on ontology 1, rolling wheel 4 passes through axis It holds 3 to be mounted on mandrel 2, positioning table is had on the mandrel 2, bearing 3 is installed in the side of positioning table, rolling wheel 4 is installed On bearing 3, the arc diameter of rolling wheel outer rim is consistent with the transition arc diameter that needs roll, two support arm ends of ontology 1 Head offers U-lag, and the mandrel 2 for installing bearing 3 and rolling wheel 4 is mounted in the U-lag of two support arm ends of ontology 1.

As shown in Figure 5,6, the U-shaped on the left of the flat being milled at the both ends of mandrel 2, the flat and ontology 1 on two support arms The upper and lower surface of slot is opposite and is inserted into U-lag.

The ontology 1 for having installed bearing 3, rolling wheel 4 and mandrel 2 is securedly mounted on lathe saddle by housing screw.

As shown in Figure 7,8, the ontology 1 is cuboid, is milled with oblique notch, the ontology 1 of milling in the left lower of ontology 1 Plane is lower than plane upper on the left of ontology on right side, and position is provided with through slot among the left side of ontology 1, at two of 1 left side of ontology U-lag is provided on support arm, mandrel both ends symmetrically mill flat.

As shown in Fig. 5,3, the positioning table is located in the middle part of mandrel position of keeping right, and bearing 3 is mounted on a left side for mandrel positioning table Side.

As shown in figure 4, the rolling wheel 4 is the circular cone stage body that center portion is through-hole.

The utility model includes ontology, mandrel, bearing, rolling wheel.Ontology is cuboid, is milled with tiltedly in ontology left lower Notch, upper plane is lower than plane upper on the left of ontology on the right side of milling ontology, and intermediate position is provided with through slot on the left of ontology, on an ontology left side It is provided with U-lag on two support arms of side, mandrel both ends symmetrically mill flat, and there is positioning table at position of keeping right in the middle part of mandrel, by bearing It is mounted on the left side of mandrel positioning table, rolling wheel is the circular cone stage body that center portion is through-hole, the arc diameter and need of rolling wheel outer rim The transition arc diameter to be rolled is consistent, and rolling wheel is installed on bearing, then will install the mandrel of bearing and rolling wheel It is mounted in the U-lag on two support arms of ontology, finally ontology right end is mounted on lathe saddle, after being fastened with housing screw Cold rolling processing can be carried out to workpiece.If need the transition arc of cold rolling difference dimensions, different sizes can be replaced The rolling wheel of specification.

Specific installation steps are as follows:

1, bearing 3 is mounted on to the left side of 2 positioning table of mandrel；

2, rolling wheel 4 is mounted on bearing 3；

3, the mandrel 2 for having installed bearing 3 and rolling wheel 4 is mounted in the U-lag on 1 two support arms of ontology, is installed When, the flat of 1 liang of end mill of mandrel is opposite with the upper and lower surface of U-lag on 1 two support arms in left side of ontology；

4, the ontology 1 for having installed bearing 3, rolling wheel 4 and mandrel 2 is mounted on lathe saddle, it is tight with housing screw Cold rolling can be carried out to workpiece after Gu.

It can be realized by the present apparatus and cold breakdown is carried out to the transition arc of the sizes specification of various step Shaft Parts products Pressure, and roll different transition arcs and only need to change rolling wheel, it is simple and efficient to handle, it improves processing efficiency and reduction is produced into This.

Claims (6)

1. a kind of transition arc cold breakdown pressure device, including band, there are two the ontologies (1) of support arm, the rolling being mounted on ontology (1) It takes turns (4), it is characterised in that: rolling wheel (4) is mounted on mandrel (2) by bearing (3), and positioning table is had on the mandrel (2), It is equipped with bearing (3) in the side of positioning table, rolling wheel (4) is mounted on bearing (3), the arc diameter and need of rolling wheel outer rim The transition arc diameter to be rolled is consistent, and two support arm ends of ontology (1) offer U-lag, installs bearing (3) and rolling In the U-lag for two support arm ends that the mandrel (2) of wheel (4) is mounted on ontology (1).

2. a kind of transition arc cold breakdown pressure device according to claim 1, it is characterised in that: in two end mills of mandrel (2) Some flats, the flat is opposite with the upper and lower surface of U-lag on two support arms on the left of ontology (1) and is inserted into U-lag.

3. a kind of transition arc cold breakdown pressure device according to claim 1, it is characterised in that: installed bearing (3), rolling The ontology (1) of pinch roller (4) and mandrel (2) is securedly mounted on lathe saddle by housing screw.

4. a kind of transition arc cold breakdown pressure device according to claim 1, it is characterised in that: the ontology (1) is rectangular Body is milled with oblique notch in the left lower of ontology (1), and plane is lower than upper plane on the left of ontology on ontology (1) right side of milling, Position is provided with through slot among the left side of ontology (1), is provided with U-lag on two support arms on the left of ontology (1), mandrel both ends are symmetrical Mill flat.

5. a kind of transition arc cold breakdown pressure device according to claim 1, it is characterised in that: the positioning table is located at mandrel Middle part is kept right position, and bearing (3) is mounted on the left side of mandrel positioning table.

6. a kind of transition arc cold breakdown pressure device according to claim 1, it is characterised in that:

The rolling wheel (4) is the circular cone stage body that center portion is through-hole.