CN201940789U - Dual-angle gland die for bearing dust-proof cover - Google Patents

Abstract

The utility model relates to accessories of a gland device during bearing assembly, in particular to a dual-angle gland die for a bearing dust-proof cover, which is designed for solving the technical problem of poor effect during bearing dust-proof cover processing of existing similar products. A body of the dual-angle gland die is the gland die, a connecting end and a conical head are arranged on two sides of a gland die base respectively, the base and the conical head are circular, the diameter of the base is smaller than the inner diameter of an outer ring of a bearing, and the conical head is abutted to the outer diameter D2 of the dust-proof cover. The dual-angle gland die is characterized in that the conical head of the gland die is provided with a conical head edge B1 and a conical head edge B2 which forms a conical angle A1 and a conical angle A2 with a horizontal plane of the conical head respectively, the length of the conical head edge B1 of the gland die is one third of the overall length of the conical head edge, and the length of the conical head edge B2 of the gland die is two thirds of the overall length of the conical head edge. The dust-proof cover is better in crimping effect during punching forming of the gland die, and the dual-angle gland die is applicable to crimping forming of the dust-proof cover during bearing assembly and structural improvement of the similar gland dies.

Description

The two angle Die for pressing cap of bearing dustproof cover

Technical field

The utility model relates to the annex of pressing device in the bearing assembling process, is the two angle Die for pressing cap of a kind of bearing dustproof cover.

Background technology

Bearing is to be used for determining rotating shaft and other part relative motion positions in the machinery, plays the fixed part commonly used of supporting or guide effect.Existing bearing generally is made up of outer ring, inner ring, rolling element and retainer, enters the operate as normal that bearing influences rolling element for preventing dust, generally also is provided with dust cap in the bearing.As the patent No. ZL 200820168887.5 that discloses in the Chinese patent literature, September 9 2009 Granted publication day, utility model title " a kind of dust cap of bearing ".Simultaneously, for convenient dust-proofing covers installation in the bearing assembling process, generally adopt pressing device (or claiming capping machine) in the bearing assembling process, pressing device is provided with Die for pressing cap.As the ZL patent No. 02275349.4 that discloses in the Chinese patent literature, September 10 2003 Granted publication day, utility model title " the punching press mold of bearing dustproof cover "; With the patent No. ZL200710189629.5 that discloses in the Chinese patent literature, May 27 2009 Granted publication day, denomination of invention " spring coil free dust-free cover secondary press-fitting method for micro bearing ".But above-mentioned Die for pressing cap is in the punching course of dust cap, and the secondary punching press that does not relate to dust cap is curled.Be that above-mentioned Die for pressing cap is provided with a shaping angle, disposable dust cap is shaped, is pressed in the dustproof groove of bearing.But because following factor: 1, there is tolerance in lasso seam size; 2, there is tolerance in dust cap crimping size; 3, the bearing of different model is along with the increasing of size, and the employed dust cap strength of materials is also increasing; Use the Die for pressing cap of a shaping angle, when the dust cap of impulse bearing, dust cap becomes flexible easily, presses less than in the dustproof groove, does over again and cause, and influences manufacturing schedule, efficient, waste of manpower, material resources.

Summary of the invention

For overcoming above-mentioned deficiency, the purpose of this utility model is to provide a kind of bearing dustproof cover with two angles two angle Die for pressing cap to this area, makes it solve existing like product for the not good enough technical problem of bearing dustproof cover hardness ag(e)ing fruit.Its objective is and be achieved through the following technical solutions.

The two angle Die for pressing cap of a kind of bearing dustproof cover, the body of this pair angle Die for pressing cap is a Die for pressing cap, and the matrix both sides of described Die for pressing cap are respectively equipped with link and conehead, and matrix and conehead are rounded, the diameter of matrix is less than the outer ring internal diameter of bearing, and the dust cap outer diameter D 2 of conehead and dust cap offsets; The conehead that its design main points are described Die for pressing cap is provided with conehead limit B1 and conehead limit B2, and the horizontal plane of conehead limit B1, B2 and conehead is conehead angle A1 and conehead angle A2 respectively.The conehead of existing Die for pressing cap is provided with a conehead limit, and conehead limit and conehead horizontal plane are a conehead angle; The utility model is according to the operation principle of existing Die for pressing cap, and on two conehead limits of conehead design of Die for pressing cap, two conehead limits are two conehead angles with the conehead horizontal plane respectively.Be that conehead limit B2 forms a conehead angle A2, dust cap outer diameter D 2 and dustproof groove seam D1 are offseted, dust cap outer diameter D 2 crimpings are become dust cap crimping D3; And the conehead angle A1 that conehead limit B1 forms, the further crimping of dust cap crimping D3 of crimping shaping for the first time under the component F1 of conehead limit B1 effect, and be pressed in the dustproof groove of bearing.

The conehead limit B1 length of described Die for pressing cap accounts for 1/3rd of conehead limit length overall, and conehead limit B2 length accounts for 2/3rds of conehead limit length overall.The conehead limit is the hypotenuse of conehead, and conehead limit B2 becomes dust cap crimping D3 with dust cap outer diameter D 2 crimpings, and conehead limit B1 will be pressed into dustproof groove by the dust cap crimping D3 of conehead limit B1 crimping, and the further crimping of dust cap crimping D3 is shaped.

The conehead side of described Die for pressing cap is provided with lead, and lead is inserted in the inner ring inner diameter hole of bearing.Lead makes corresponding Die for pressing cap in use play guiding function, makes the punching press assembling process of dust cap further stable.

The utility model is reasonable in design, and is simple in structure, easy to use, and dust cap crimping effect in the stamping process of Die for pressing cap is better, is applicable to that the crimping of dust cap in the bearing assembling is shaped, and the architecture advances of similar Die for pressing cap.

Description of drawings

Fig. 1 is a user mode structural representation of the present utility model, and A portion has done to confine among the figure.

Fig. 2 is the A portion enlarged drawing of Fig. 1.

Fig. 3 is the conehead limit B2 punching press state part-structure schematic diagram of the utility model to dust cap.

Fig. 4 is the conehead limit B1 punching press state part-structure schematic diagram of the utility model to dust cap.

Figure number and title: 1, bearing, 101, the outer ring, 102, inner ring, 103, steel ball, 104, dustproof groove, 2, dust cap, 3, Die for pressing cap, 301, link, 302, matrix, 303, conehead, 304, lead.

A1, A2 are respectively the conehead angle of Die for pressing cap, and B1, B2 are respectively the conehead limit of Die for pressing cap, and F is that Die for pressing cap is subjected to force direction, F1 is that the conehead limit B1 of Die for pressing cap is subjected to force direction, and F2 is that the conehead limit B2 of Die for pressing cap is subjected to force direction, and D1 is dustproof groove seam, D2 is the dust cap external diameter, and D3 is the dust cap crimping.

The specific embodiment

Now in conjunction with the accompanying drawings, the utility model structure and use are further described.Existing bearing gland device generally is provided with Die for pressing cap 3 in (or claiming capping machine), make by Die for pressing cap that the dust cap 2 one end crimpings between the outer ring 101 and inner ring 102 are pressed into dustproof groove 104 on the bearing 1, dust cap prevents that dust from entering the gap between outer ring and the inner ring, influences the work of steel ball 103.But the conehead 303 of its Die for pressing cap generally only is provided with a conehead limit, and conehead limit and conehead horizontal plane are a conehead angle.

As shown in Figure 2, the conehead of Die for pressing cap is provided with two conehead limits in the utility model, i.e. conehead limit B1 and conehead limit B2, and the angle that conehead limit B1 and conehead horizontal plane are is conehead angle A1, the angle that conehead limit B2 and conehead horizontal plane are is conehead angle A2.The link 301 of Die for pressing cap is connected with the bearing gland device, carries out punching press after the size of Die for pressing cap and the debugging of the size of bearing are qualified.As shown in Figure 1, the dust cap of crimping is not inserted the gap between outer ring and the inner ring, and the lead 304 of Die for pressing cap is inserted in the internal diameter of bearing inner race, and the conehead of matrix 302 1 sides aligns with the dust cap outer diameter D of dust cover 2 dust cap crimping D3.As shown in Figure 3, the effect of the stressed F of Die for pressing cap offsets the dust cap outer diameter D 2 of conehead and dust cap, and dust cap outer diameter D 2 is subjected to the power F2 effect crimping of conehead limit B2 to become dust cap crimping D3; As shown in Figure 4, continue the stressed F of Die for pressing cap, the dust cap crimping D3 of dust cap is subjected to the power F1 effect of conehead limit B1 to continue crimping, and makes dust cap crimping D3 be pressed into dustproof groove, is pressed into dustproof groove fully until dust cap, and the dust cap assembling can be finished.

According to said structure characteristics and operation principle, the bearing of different size is selected the dust cap and the Die for pressing cap of correspondingly-sized.When the utility model has in use avoided using conventional Die for pressing cap punching press dust cap in the past, cause loosening after the dust cap punching press, press less than the phenomenon in the dustproof groove of bearing; Improved production efficiency, avoided doing over again because of punching press is bad, the situation of the human and material resources waste that causes takes place.

Claims (3)

1. two angle Die for pressing cap of a bearing dustproof cover, the body of this pair angle Die for pressing cap is Die for pressing cap (3), the matrix of described Die for pressing cap (302) both sides are respectively equipped with link (301) and conehead (303), matrix and conehead are rounded, the diameter of matrix is less than outer ring (101) internal diameter of bearing (1), and the dust cap outer diameter D 2 of conehead and dust cap (2) offsets; The conehead (303) that it is characterized in that described Die for pressing cap (3) is provided with conehead limit B1 and conehead limit B2, and the horizontal plane of conehead limit B1, B2 and conehead is conehead angle A1 and conehead angle A2 respectively.

2. the two angle Die for pressing cap of bearing dustproof cover according to claim 1 is characterized in that the conehead limit B1 length of described Die for pressing cap (3) accounts for 1/3rd of conehead limit length overall, and conehead limit B2 length accounts for 2/3rds of conehead limit length overall.

3. the two angle Die for pressing cap of bearing dustproof cover according to claim 1 is characterized in that the conehead side of described Die for pressing cap (3) is provided with lead (304), and lead is inserted in inner ring (102) inner diameter hole of bearing (1).

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