CN214445546U

CN214445546U - Grinding wheel dressing electric spindle

Info

Publication number: CN214445546U
Application number: CN202023247380.9U
Authority: CN
Inventors: 卢永刚
Original assignee: Puyang Wansong Precision Machinery Co ltd
Current assignee: Puyang Wansong Precision Machinery Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-22
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses an electric main shaft is maintained to emery wheel includes main shaft housing, main shaft housing one end is equipped with preceding gland, and the main shaft housing other end is equipped with the back gland to main shaft housing's inside is equipped with the stator, the rotor is worn to be equipped with in the inside of stator, and rotor internally mounted has the transmission main shaft, and the both ends of transmission main shaft are equipped with first fixing bearing and second fixing bearing respectively in the cover, the pot head of transmission main shaft is equipped with maintenance wheel support piece, and the one end of transmission main shaft still is equipped with maintenance wheel fixing base. The grinding wheel trimming electric spindle is simplified in overall structure, a motor structure is arranged in the spindle to form a built-in electric spindle, the spindle is directly driven, a transmission part is omitted, product precision is improved, vibration of the spindle is reduced, requirements of stable operation and precision improvement can be met, meanwhile, the device is provided with a sealing structure, debris is prevented from entering the device, and the device is simple to maintain and replace and is convenient for a user to use.

Description

Grinding wheel dressing electric spindle

Technical Field

The utility model relates to a grinding wheel dressing equipment technical field specifically is a grinding wheel dressing motorized spindle.

Background

The ceramic CBN grinding wheel has excellent grinding performance and grinding surface quality, and is widely applied to the processing fields of high-speed and ultrahigh-speed grinding, high-performance grinding of difficult-to-process materials, high-efficiency forming grinding and the like. In the grinding process, due to the actions of grinding force, high temperature in a grinding area, adhesion and the like, abrasive particles on the working surface of the grinding wheel are gradually passivated; meanwhile, abrasive particles on the working surface of the grinding wheel lose the correct original geometric shape due to uneven wear; in addition, the grinding dust generated by high-speed grinding is very fine, so that the gaps on the working surface of the grinding wheel are easily blocked.

The existing trimming mechanism is complex in structure and large in size, a main grinding part on the trimming machine needs to be replaced regularly, replacing steps are complex, abrasive particles on the working surface of a grinding wheel easily enter the inside of the trimming machine, rotating efficiency of the trimming machine is reduced, and using effect of the trimming machine is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric main shaft is maintained to emery wheel to main position of polishing on the finisher that proposes in solving the background art needs the regular change, and it is more loaded down with trivial details to change the step, and emery wheel working surface's grit enters into the inside of finisher easily, reduces the rotation efficiency of finisher, reduces the problem of finisher result of use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electric main shaft is maintained to emery wheel, includes main shaft housing, main shaft housing one end is equipped with preceding gland, and the main shaft housing other end is equipped with the back gland to main shaft housing's inside is equipped with the stator, the rotor is worn to be equipped with in the inside of stator, and rotor internally mounted has transmission main shaft, and the both ends of transmission main shaft are equipped with first fixing bearing and second fixing bearing respectively by the cover, a pot head of transmission main shaft is equipped with maintenance wheel support piece, and the one end of transmission main shaft still is equipped with the maintenance wheel fixing base to the outside cover of transmission main shaft is equipped with the sealing washer, the outside cover of maintenance wheel support piece is equipped with the maintenance wheel main part, and the outer wall of maintenance wheel main part is equipped with the maintenance wheel locating piece of rectangle.

Preferably, the outer ring diameter of the dressing wheel fixing seat is larger than the inner diameter of the dressing wheel supporting piece, a fixing seat mounting screw is arranged on the outer wall of the dressing wheel fixing seat, and one end of the fixing seat mounting screw penetrates through the dressing wheel fixing seat and is fixed on the transmission main shaft.

Preferably, the outer wall of the dressing wheel main body is provided with a dressing wheel mounting screw, and one end of the dressing wheel mounting screw penetrates through the dressing wheel main body and is fixed on the dressing wheel support.

Preferably, 2 annular grooves are formed in one end, close to the front gland, of the trimming wheel supporting piece, grooves corresponding to the positions of the trimming wheel positioning blocks are formed in one end, close to the trimming wheel main body, of the trimming wheel supporting piece, and annular protrusions matched with the inner shapes of the annular grooves in the trimming wheel supporting piece are formed in one end, close to the trimming wheel supporting piece, of the front gland.

Preferably, first fixed bearing and second fixed bearing all are equipped with 2 groups, and first fixed bearing and second fixed bearing's outer lane card respectively on main shaft housing and back gland inner wall.

Preferably, the inner side of the sealing ring is provided with an annular bulge, and the annular bulge on the inner side of the sealing ring is clamped between the first fixed bearings.

Compared with the prior art, the beneficial effects of the utility model are that: the grinding wheel trimming electric spindle is simplified in overall structure, a motor structure is arranged in the spindle to form a built-in electric spindle, the spindle is directly driven, a transmission part is omitted, product precision is improved, vibration of the spindle is reduced, requirements of stable operation and precision improvement can be met, meanwhile, the device is provided with a sealing structure, debris is prevented from entering the device, and the device is simple to maintain and replace and is convenient for a user to use. The dressing wheel fixing seat of the device can be fixed on a transmission main shaft through the fixing seat mounting screw, so that the dressing wheel fixing seat can fix one end of the dressing wheel supporting piece, the position of the dressing wheel supporting piece is clamped, meanwhile, the groove in the outer wall of the dressing wheel supporting piece can be clamped outside the protrusion of the outer wall of the front gland, the connecting effect between the front gland and the dressing wheel supporting piece is increased, the annular protrusion of the inner ring of the sealing ring can be clamped at the position between the first fixing bearings, and the sealing effect near the first fixing bearings is improved.

Drawings

Fig. 1 is a schematic structural view of an electric spindle for dressing a grinding wheel according to the present invention;

fig. 2 is a cross-sectional view taken along a line a-a in fig. 1 illustrating a grinding wheel dressing electric spindle according to the present invention;

FIG. 3 is a side view of a grinding wheel dressing electric spindle dressing wheel fixing seat of the present invention;

FIG. 4 is a side view of a main body of a grinding wheel dressing electric spindle dressing wheel of the present invention;

fig. 5 is a cross-sectional view of a grinding wheel dressing electric spindle dressing wheel support member of the present invention;

fig. 6 is a cross-sectional view of the front gland of the electric spindle for dressing by using the grinding wheel of the present invention.

In the figure: 1. dressing wheel fixing base, 2, dressing wheel main part, 3, dressing wheel support piece, 4, preceding gland, 5, main shaft housing, 6, casing fixing base, 7, back gland, 8, dressing wheel mounting screw, 9, transmission main shaft, 10, first fixing bearing, 11, stator, 12, rotor, 13, second fixing bearing, 14, fixing base mounting screw, 15, dressing wheel locating piece, 16, sealing washer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a grinding wheel dressing electric spindle comprises a spindle shell 5, one end of the spindle shell 5 is provided with a front gland 4, the other end of the spindle shell 5 is provided with a rear gland 7, a stator 11 is arranged inside the spindle shell 5, a rotor 12 penetrates through the stator 11, a transmission spindle 9 is arranged inside the rotor 12, two ends of the transmission spindle 9 are respectively sleeved with a first fixed bearing 10 and a second fixed bearing 13, the first fixed bearing 10 and the second fixed bearing 13 are respectively provided with 2 groups, outer rings of the first fixed bearing 10 and the second fixed bearing 13 are respectively clamped on the inner walls of the spindle shell 5 and the rear gland 7, the first fixed bearing 10 and the second fixed bearing 13 of the structure play a role in fixing the position of the transmission spindle 9, meanwhile, the rotation flexibility of the transmission spindle 9 is increased, the situation that the transmission spindle 9 generates large vibration in the rotation process is avoided, one end of the transmission spindle 9 is sleeved with a dressing wheel support member 3, and one end of the transmission main shaft 9 is also provided with a dressing wheel fixing seat 1, and the outer part of the transmission main shaft 9 is sleeved with a sealing ring 16, the diameter of the outer ring of the dressing wheel fixing seat 1 is larger than the inner diameter of the dressing wheel supporting piece 3, the outer wall of the dressing wheel fixing seat 1 is provided with a fixing seat mounting screw 14, and one end of the fixing seat mounting screw 14 passes through the dressing wheel fixing seat 1 and is fixed on the transmission main shaft 9, the dressing wheel fixing seat 1 of the structure can be fixed on the transmission main shaft 9 through the fixing seat mounting screw 14, one end of the dressing wheel supporting piece 3 can be propped through the dressing wheel fixing seat 1, so as to fix the position of the dressing wheel supporting piece 3, so that the dressing wheel supporting piece 3 is firmly sleeved on the transmission main shaft 9, the inner side of the sealing ring 16 is provided with an annular bulge, and the annular bulge on the inner side of the sealing ring 16 is clamped between the first fixing bearings 10, the bulge on the inner side of the sealing ring 16 of the structure can be clamped between the 2 first fixing bearings 10, the sealing effect outside the transmission main shaft 9 is improved through the sealing ring 16, so that scraps are not easy to enter the position of the rotor 12, the trimming wheel main body 2 is sleeved outside the trimming wheel support 3, the rectangular trimming wheel positioning block 15 is arranged on the outer wall of the trimming wheel main body 2, the trimming wheel mounting screw 8 is arranged on the outer wall of the trimming wheel main body 2, one end of the trimming wheel mounting screw 8 penetrates through the trimming wheel main body 2 and is fixed on the trimming wheel support 3, the trimming wheel mounting screw 8 on the outer wall of the trimming wheel main body 2 of the structure can be fixed on the trimming wheel support 3, the position of the trimming wheel main body 2 is fixed through the trimming wheel mounting screw 8, the work of dismounting and mounting of the trimming wheel main body 2 is convenient, 2 annular grooves are formed at one end of the trimming wheel support 3 close to the front gland 4, and a groove corresponding to the position of the trimming wheel positioning block 15 is formed at one end of the trimming wheel support 3 close to the trimming wheel main body 2, and the one end that preceding gland 4 is close to finishing wheel support 3 is equipped with the annular bulge identical with the annular groove internal shape on finishing wheel support 3, the recess of the 3 one end of finishing wheel support of this structure plays the effect of holding finishing wheel locating piece 15, can fix the position of finishing wheel locating piece 15, make the screw hole on the finishing wheel main part 2 can be accurate to the screw hole on the finishing wheel support 3, make things convenient for the installation work of finishing wheel main part 2, the annular groove of the 3 other ends of finishing wheel support can block on the outer wall of preceding gland 4 simultaneously, form unsmooth state between preceding gland 4 and the finishing wheel support 3 like this, make the gap between finishing wheel support 3 and the finishing wheel support 3 reduce, make external piece difficult to enter into the inboard of preceding gland 4.

The working principle is as follows: when the grinding wheel is used for trimming the electric spindle, firstly, a shell fixing seat 6 of the device is fixed at a proper place, then, in the using process, after current is introduced into a rotor 12, the rotor 12 can rotate at the inner side of a stator 11, then the stator 11 can drive a transmission main shaft 9 to rotate at the inner sides of a first fixed bearing 10 and a second fixed bearing 13, then the transmission main shaft 9 can drive a trimming wheel fixing seat 1 and a trimming wheel supporting piece 3 to rotate, further the trimming wheel main body 2 is driven to rotate, the grinding and trimming work is carried out through the trimming wheel main body 2, a concave-convex structure is arranged between the trimming wheel supporting piece 3 and a front gland 4, external scraps are not easy to enter the inner side of the front gland 4, meanwhile, a sealing ring 16 is arranged between the first fixed bearings 10, the sealing effect of the outer ring of the transmission main shaft 9 is improved through the sealing ring 16, when the trimming wheel main body 2 needs to be replaced, the dressing wheel mounting screw 8 is detached from the dressing wheel main body 2, then the dressing wheel main body 2 can be directly detached from the dressing wheel support 3, then the dressing wheel positioning block 15 on the new dressing wheel main body 2 is aligned to the groove on the outer wall of the dressing wheel support 3, the position of the dressing wheel main body 2 can be clamped through the dressing wheel positioning block 15, the threaded hole in the dressing wheel main body 2 can be accurately aligned to the dressing wheel support 3, the dressing wheel mounting screw 8 is convenient to mount, and therefore a series of works are completed.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An electric spindle for dressing grinding wheels, comprising a spindle housing (5), characterized in that: one end of the main shaft shell (5) is provided with a front gland (4), the other end of the main shaft shell (5) is provided with a rear gland (7), a stator (11) is arranged in the main shaft shell (5), a rotor (12) penetrates through the stator (11), a transmission main shaft (9) is arranged in the rotor (12), and the two ends of the transmission main shaft (9) are respectively sleeved with a first fixed bearing (10) and a second fixed bearing (13), one end of the transmission main shaft (9) is sleeved with a dressing wheel supporting piece (3), and one end of the transmission main shaft (9) is also provided with a dressing wheel fixing seat (1), a sealing ring (16) is sleeved outside the transmission main shaft (9), a dressing wheel main body (2) is sleeved outside the dressing wheel supporting piece (3), and a rectangular dressing wheel positioning block (15) is arranged on the outer wall of the dressing wheel main body (2).

2. The grinding wheel truing motorized spindle of claim 1, wherein: 2 annular grooves are formed in one end, close to the front gland (4), of the trimming wheel supporting piece (3), grooves corresponding to the positions of the trimming wheel positioning blocks (15) are formed in one end, close to the trimming wheel main body (2), of the trimming wheel supporting piece (3), and annular protrusions matched with the inner shapes of the annular grooves in the trimming wheel supporting piece (3) are formed in one end, close to the trimming wheel supporting piece (3), of the front gland (4).

3. The grinding wheel truing motorized spindle of claim 1, wherein: and a dressing wheel mounting screw (8) is arranged on the outer wall of the dressing wheel main body (2), and one end of the dressing wheel mounting screw (8) penetrates through the dressing wheel main body (2) to be fixed on the dressing wheel support (3).

4. The grinding wheel truing motorized spindle of claim 1, wherein: 2 annular grooves are formed in one end, close to the front gland (4), of the trimming wheel supporting piece (3), and annular protrusions matched with the inner shape of the annular grooves in the trimming wheel supporting piece (3) are arranged at one end, close to the trimming wheel supporting piece (3), of the front gland (4).

5. The grinding wheel truing motorized spindle of claim 1, wherein: first fixed bearing (10) and second fixed bearing (13) all are equipped with 2 groups, and just the outer lane of first fixed bearing (10) and second fixed bearing (13) blocks respectively on main shaft housing (5) and back gland (7) inner wall.

6. The grinding wheel truing motorized spindle of claim 1, wherein: the inner side of the sealing ring (16) is provided with an annular bulge, and the annular bulge on the inner side of the sealing ring (16) is clamped between the first fixed bearings (10).