CN219075463U - Double-station front end cover bearing entering clamp - Google Patents

Abstract

The utility model discloses a double-station front end cover bearing clamp, which belongs to the technical field of bearing clamps and comprises a die shank and a base, wherein an upper die holder is fixed at the bottom of the die shank, a buffer shaft sleeve is fixed at the bottom of the upper die holder, a pressure head is fixedly connected to the bottom of the buffer shaft sleeve, a reset spring is sleeved on the pressure head, a positioning ring is fixed at the bottom of the reset spring and sleeved on the pressure head, a magnet is mounted on the pressure head, a bearing assembly consisting of a bearing and a bearing bush is fixed at the bottom of the magnet, and the base is positioned right below the bearing bush; the utility model realizes the clamping and fixing of the bearing, has convenient positioning, improves the efficiency, combines rigidity and flexibility, has soft and uniform stress and improves the pressing process.

Description

Double-station front end cover bearing entering clamp

Technical Field

The utility model relates to the technical field of bearing clamps, in particular to a double-station front end cover bearing clamp.

Background

Be applied to the pressure fit mould that bearing assembly was gone into to the front end housing part of diaphragm booster pump on domestic purifier, earlier stage area ladder type D type hole bearing bush has assembled into the bearing hole in and has been constituteed bearing assembly, and the bearing external diameter is for the clearance fit that minimum clearance is 0 between the front end housing bearing hole, because bearing and front end housing inevitably have shape error and deformation, in bearing assembly also can not get into the bearing hole of front end housing very easily, need adopt the cylinder to impress the bearing in the front end housing bearing hole.

The stepped D-shaped hole bearing bush is assembled in the bearing, the bearing assembly is positioned by adopting the D-shaped hole after the front end cover is positioned by using the outer diameter, the bearing assembly is inserted into the D-shaped shaft arranged in the center of the base, an operator needs to align the D-shaped straight edge on the bearing bush with the D-shaped shaft straight edge each time to be assembled, the installation is very inconvenient, in addition, a single-head operation mode is adopted, the pressure head is made of steel materials and is made of hard materials, only one bearing can be pressed at each time, the working efficiency is low, and therefore, the double-station front end cover is put forward into the bearing clamp.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a double-station front end cover bearing clamp, overcomes the defects in the prior art and aims at solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a duplex position front end housing goes into bearing anchor clamps, includes die shank and base, the bottom of die shank is fixed with the upper die base, the bottom of upper die base is fixed with buffer sleeve, buffer sleeve's bottom fixedly connected with pressure head, the cover is established on the pressure head and is installed reset spring, reset spring's bottom is fixed with the holding ring, and the holding ring cover is located on the pressure head, install magnet on the pressure head, the bottom of magnet is fixed with the bearing assembly that bearing and bearing bush are constituteed, the base is located under the bearing bush, two positioning sleeves are installed to the interference on the base, install the front end housing on the positioning sleeve, the front end housing is located under the bearing bush.

As a preferable technical scheme of the utility model, a bolt is arranged on the die shank in a threaded manner, and the bolt is in threaded connection with the upper die holder.

As a preferable technical scheme of the utility model, a gasket is fixedly arranged between the pressure head and the return spring, the pressure head is in interference fit with the buffer shaft sleeve, and the outer diameter of the gasket is larger than that of the buffer shaft sleeve.

As an optimized technical scheme of the utility model, the pressure head is provided with the stepped shaft, the gasket is positioned on the buffer shaft sleeve and the stepped shaft on the pressure head, the buffer shaft sleeve is made of polyurethane material, and the buffer shaft sleeve is in interference fit with the upper die holder.

As a preferable technical scheme of the utility model, a blind hole is arranged at the center of the end face of the pressure head, three D-shaped magnet holes are uniformly arranged at the outer edge of the pressure head, the magnets are arranged in a D-shaped structure, the magnets are positioned in the D-shaped holes, the magnets are connected with the D-shaped magnet holes through sealant, the end face of the magnets is lower than the surface of the pressure head, grooves are formed in the outer edges of the D-shaped magnet holes, and the depth of each groove is 0.1-0.5 mm.

As a preferable technical scheme of the utility model, the positioning ring is internally provided with a step hole which is in clearance fit with the pressure head.

As a preferable technical scheme of the utility model, the front end cover is provided with a spigot, and the spigot is in clearance fit with the positioning sleeve.

As a preferable technical scheme of the utility model, an upper counter shaft and a lower counter shaft are arranged in the positioning sleeve.

The utility model has the beneficial effects that:

aiming at the characteristics that the minimum clearance between the outer diameter of the bearing and the bearing hole of the front end cover is clearance fit, the bearing pressing force is not large, but the bearing end face is required to be in contact with the shoulder blade surface of the front end cover, a small pneumatic press is adopted for pressing and matching in place, when the two stations are adopted for pressing, because of the tolerance between the heights of the parts, a rigid pressing and matching mode cannot be adopted, otherwise, the stroke of a cylinder can be limited after one station is pressed and matched in place, and the other station cannot be pressed and matched in place, so that a flexible pressing mode is required, a buffer bushing made of polyurethane material is adopted, the deformation between the polyurethane materials is utilized to eliminate the variation between the parts of the two stations, and the parts of the two stations can be pressed and matched in place simultaneously.

Meanwhile, the positioning mode of the bearing is adjusted, the earlier stage of inserting a D-shaped shaft is changed, the bearing assembly is arranged on the pressing head, the positioning ring is sleeved outside the pressing head, the positioning ring and the outer circle of the pressing head are in small clearance fit, the positioning ring slides freely on the pressing head and can be always in the lower position under the action of gravity, the positioning ring and the outer diameter of the bearing are in clearance fit, the bearing can be easily arranged in the positioning ring, after the positioning ring is arranged in the positioning ring, the bearing is kept at the end part of the pressing head under the action of the suction force of a magnet in the pressing head, the center of the pressing head is concentric with a middle hole of the base, and therefore the bearing can be easily arranged in the bearing hole along the chamfer angle of the outer edge of the bearing hole of the front end cover, and can be gently pressed into the bearing hole under the action of flexible force of the buffering shaft sleeve polyurethane material, so that the damage of the rigid acting force to the precision bearing assembly is avoided.

The reset spring has the advantages that the reset spring is convenient to place the bearing in the inner hole of the positioning ring, the positioning ring is not easy to push to the upper part in the process of placing the bearing, the centering effect of the positioning ring is not easy to cause, the bearing and the bearing hole are not good in centering, the bearing is difficult to enter the bearing hole or incline into the bearing hole, and the bearing is damaged. After the bearing is arranged in the bearing hole, the positioning ring is pushed into the upper part under the action of the surface of the front end cover, and after the cylinder is lifted, the positioning ring slides to the bottom under the action of gravity and a reset spring; in order to avoid damaging the bearing, only the outer ring of the bearing can be pressed during the assembly of the bearing, a blind hole is required to be arranged on the pressure head part, and the inner ring of the bearing is not stressed.

Because the thickness dimension of the outer ring of the bearing is smaller, in order to facilitate the magnet to adsorb the bearing, the magnet needs to be close to the outer edge as much as possible, and the attraction of the magnet is fully exerted by adopting the D-shaped magnet and matching with the D-shaped magnet hole on the pressing head. In order to avoid the situation that the magnet is stressed in the press-fit process, the magnet is thin in wall, the magnet is easy to deform after being stressed, the size is increased, the positioning ring is possibly clamped after the size is increased, the positioning ring is inflexible to slide, and positioning cannot be realized, so that the outer edge part of the magnet needs to be polished by 0.1-0.5mm, and deformation caused by press-fit force is avoided.

The utility model realizes the clamping and fixing of the bearing, has convenient positioning, improves the efficiency, combines rigidity and flexibility, has soft and uniform stress and improves the pressing process.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the upper and lower pair of die shafts of the present utility model;

FIG. 4 is a schematic diagram of a D-shaped magnet hole structure according to the present utility model;

FIG. 5 is a schematic diagram of a groove structure according to the present utility model;

FIG. 6 is a schematic view of a bearing cartridge according to the present utility model;

FIG. 7 is a schematic view of a spigot according to the present utility model;

FIG. 8 is a schematic view of the structure of the front end cap bearing of the present utility model after being pressed in;

FIG. 9 is a schematic top view of a magnet according to the present utility model;

FIG. 10 is a schematic view of a retaining ring according to the present utility model;

FIG. 11 is a schematic view of the structure of the pressing-in mode of the prior bearing of the present utility model;

fig. 12 is a schematic diagram of the upper and lower pair mould axis alignment state structure of the present utility model.

In the figure: 1. a die handle; 2. a bolt; 3. an upper die holder; 4. a buffer sleeve; 5. a pressure head; 6. a gasket; 7. a positioning ring; 8. a magnet; 9. a bearing; 10. a bearing bush; 11. a front end cover; 12. a positioning sleeve; 13. a base; 14. d-shaped magnet holes; 15. a groove; 16. a spigot; 17. a blind hole; 18. a return spring; 19. and the upper die shaft and the lower die shaft are matched.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-12, the double-station front end cover bearing clamp comprises a die shank 1 and a base 13, an upper die holder 3 is fixed at the bottom of the die shank 1, a bolt 2 is arranged on the die shank 1 in a threaded manner, and the bolt 2 is in threaded connection with the upper die holder 3.

The bottom of upper die base 3 is fixed with buffer shaft sleeve 4, and buffer shaft sleeve 4's bottom fixedly connected with pressure head 5, and the cover is established on pressure head 5 and is installed reset spring 18, and fixed mounting has gasket 6 between pressure head 5 and the reset spring 18, and pressure head 5 is interference fit with buffer shaft sleeve 4, and the external diameter of gasket 6 is greater than buffer shaft sleeve 4's external diameter. The pressure head 5 is provided with a stepped shaft, the gasket 6 is positioned on the buffer shaft sleeve 4 and the stepped shaft on the pressure head 5, the buffer shaft sleeve 4 is made of polyurethane materials, and the buffer shaft sleeve 4 is in interference fit with the upper die holder 3.

The bottom of the reset spring 18 is fixed with a positioning ring 7, the positioning ring 7 is sleeved on the pressure head 5, a step hole is arranged in the positioning ring 7, and the step hole is in clearance fit with the pressure head 5. The pressing head 5 is provided with a magnet 8, the bottom of the magnet 8 is fixed with a bearing assembly formed by a bearing 9 and a bearing bush 10, the base 13 is positioned under the bearing bush 10, the base 13 is provided with two positioning sleeves 12 in an interference manner, and an upper die shaft 19 and a lower die shaft 19 are arranged in the positioning sleeves 12.

The locating sleeve 12 is provided with a front end cover 11, the front end cover 11 is positioned under the bearing bush 10, the front end cover 11 is provided with a spigot 16, and the spigot 16 is in clearance fit with the locating sleeve 12. The bearing has the characteristics that the minimum clearance between the outer diameter of the bearing and the bearing hole of the front end cover 11 is 0, the bearing pressing force is not large, but the bearing end surface is required to be in contact with the shoulder blade surface of the front end cover 11, a small pneumatic press is adopted for pressing in place, when two stations are adopted for pressing, because a rigid pressing mode cannot be adopted due to the tolerance between the heights of the parts, otherwise, the stroke of a cylinder can be limited after one station is pressed in place, and the other station cannot be pressed in place, so that a flexible pressing mode is required, a buffer bushing 4 made of polyurethane material is adopted, the deformation between the polyurethane materials is utilized to eliminate the variation between the parts of the two stations, and the parts of the two stations can be pressed in place simultaneously.

The positioning mode of the bearing is adjusted, the earlier stage is changed to be in a D-shaped shaft inserting mode, the bearing assembly is arranged on the pressure head 5, the pressure head 5 is sleeved with the positioning ring 7, the positioning ring 7 and the outer circle of the pressure head 5 are in small clearance fit, the positioning ring 7 slides freely on the pressure head and can be always in a lower position under the action of gravity, the positioning ring 7 and the outer diameter of the bearing are in clearance fit, the bearing can be easily arranged in the positioning ring 7, after being arranged in the positioning ring, the bearing is kept at the end part of the pressure head 5 under the action of the suction force of the magnet 8 in the pressure head 5, the center of the pressure head 5 is concentric with the middle hole of the base 13, so that the bearing can be easily arranged in the bearing hole along the chamfer angle of the outer edge of the bearing hole of the front end cover 11, and can be very gently pressed into the bearing hole under the action of the flexible force of the polyurethane material of the buffer sleeve 4, and the damage of the rigid acting force to the precise bearing assembly is avoided.

The center of the end face of the pressure head 5 is provided with a blind hole 17, the outer edge of the pressure head 5 is uniformly provided with three D-shaped magnet holes 14, a magnet 8 is positioned in each D-shaped hole, a sealant is arranged between the magnet 8 and each D-shaped magnet hole 14 and is connected with the magnet 8, the end face of the magnet 8 is lower than the surface of the pressure head 5, the outer edge of each D-shaped magnet hole 14 is provided with a groove 15, and the depth of each groove 15 is 0.1-0.5 mm.

Working principle: aiming at the characteristics that the minimum clearance between the outer diameter of a bearing and the bearing hole of the front end cover 11 is 0, the bearing pressing force is not large, but the bearing end surface is required to be in contact with the shoulder blade surface of the front end cover 11, a small pneumatic press is adopted for pressing in place, when two stations are adopted for pressing, because of the tolerance between the heights of the parts, a rigid pressing mode cannot be adopted, otherwise, after one station is pressed in place, the stroke of a cylinder is limited, and the other station cannot be pressed in place, therefore, a flexible pressing mode is required, a buffer bushing 4 made of polyurethane material is adopted, the deformation between the parts between the two stations is eliminated, and the parts of the two stations can be pressed in place simultaneously.

Meanwhile, the positioning mode of the bearing is adjusted, the earlier stage of inserting a D-shaped shaft is changed, the bearing assembly is arranged on the pressure head 5, the pressure head 5 is sleeved with the positioning ring 7, the positioning ring 7 and the outer circle of the pressure head 5 are in small clearance fit, the positioning ring 7 can slide freely on the pressure head and can be always in a lower position under the action of gravity, the outer diameter of the positioning ring 7 and the outer diameter of the bearing are in clearance fit, the bearing can be easily arranged in the positioning ring 7, after the bearing is arranged in the positioning ring 7, the bearing is kept at the end part of the pressure head 5 under the action of the suction force of the magnet 8 in the pressure head 5, the center of the pressure head 5 is concentric with the middle hole of the base 13, and therefore the bearing can be easily arranged in the bearing hole along the chamfer of the outer edge of the bearing hole of the front end cover 11, and can be very gently pressed into the bearing hole under the action of the flexible force of the buffer sleeve 4 material, so that the damage of the rigid acting force to the precision bearing assembly is avoided.

The reset spring 18 has the function of being convenient for placing the bearing in the inner hole of the positioning ring 7, and is not easy to push the positioning ring 7 to the upper part in the process of placing the bearing, so that the bearing lacks the centering function of the positioning ring, the bearing and the bearing hole have poor centering, the bearing is difficult to enter the bearing hole or incline into the bearing hole, and the bearing is damaged. After the bearing is arranged in the bearing hole, the positioning ring 7 is pushed into the upper part under the action of the surface of the front end cover, and after the cylinder is lifted, the positioning ring 7 slides to the bottom under the action of gravity and the reset spring 18; in order to avoid damaging the bearing, only the outer ring of the bearing can be pressed during the assembly of the bearing, a blind hole 17 needs to be arranged in the pressure head 5, and the inner ring of the bearing is not stressed.

Because the thickness of the outer ring of the bearing is small, in order to facilitate the magnet 8 to absorb the bearing, the magnet 8 needs to be close to the outer edge as much as possible, the D-shaped magnet 8 is adopted, and the attraction force of the magnet is fully exerted by matching with the D-shaped magnet hole 14 on the pressure head 5. In order to avoid the situation that the magnet 8 is stressed in the press-fit process, the magnet 8 is thin in wall and easy to deform after being stressed, so that the size is increased by expansion, the positioning ring 7 can be clamped after the size is increased, the positioning ring 7 has inflexible sliding phenomenon, and positioning cannot be realized, so that the outer edge part of the magnet 8 needs to be polished to 0.1-0.5mm, and deformation caused by press-fit force is avoided.

Finally, it should be noted that: in the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a duplex position front end cover goes into bearing anchor clamps, includes die shank (1) and base (13), its characterized in that, the bottom of die shank (1) is fixed with upper die base (3), the bottom of upper die base (3) is fixed with buffering axle sleeve (4), the bottom fixedly connected with pressure head (5) of buffering axle sleeve (4), cover is established on pressure head (5) and is installed reset spring (18), the bottom of reset spring (18) is fixed with holding ring (7), and holding ring (7) cover is located on pressure head (5), install magnet (8) on pressure head (5), the bottom of magnet (8) is fixed with the bearing assembly that bearing (9) and bearing bush (10) are constituteed, base (13) are located under bearing bush (10), install front end cap (11) on position sleeve (12), front end cap (11) are located under bearing bush (10).

2. The double-station front end cover bearing clamp according to claim 1, wherein a bolt (2) is mounted on the die shank (1) in a threaded manner, and the bolt (2) is in threaded connection with the upper die holder (3).

3. The duplex position front end cover goes into bearing anchor clamps according to claim 1, characterized in that, pressure head (5) with install gasket (6) between reset spring (18) fixedly, pressure head (5) are interference fit with buffer sleeve (4), the external diameter of gasket (6) is greater than the external diameter of buffer sleeve (4).

4. The double-station front end cover bearing clamp according to claim 3, wherein the pressure head (5) is provided with a stepped shaft, the gasket (6) is positioned on the stepped shaft on the buffer shaft sleeve (4) and the pressure head (5), the buffer shaft sleeve (4) is made of polyurethane, and the buffer shaft sleeve (4) is in interference fit with the upper die holder (3).

5. The bearing clamp is characterized in that a blind hole (17) is formed in the center of the end face of the pressure head (5), three D-shaped magnet holes (14) are uniformly formed in the outer edge of the pressure head (5), the magnet (8) is arranged in a D-shaped structure, the magnet (8) is located in the D-shaped hole, a sealant is arranged between the magnet (8) and the D-shaped magnet holes (14), the end face of the magnet (8) is lower than the surface of the pressure head (5), grooves (15) are formed in the outer edge of the D-shaped magnet holes (14), and the depth of the grooves (15) is 0.1-0.5 mm.

6. The double-station front end cover bearing clamp according to claim 5, wherein a step hole is arranged in the positioning ring (7), and the step hole is in clearance fit with the pressure head (5).

7. The double-station front end cover bearing clamp according to claim 1, wherein a spigot (16) is arranged on the front end cover (11), and the spigot (16) is in clearance fit with the positioning sleeve (12).

8. The double-station front end cover bearing clamp according to claim 1, wherein an upper counter shaft (19) and a lower counter shaft (19) are arranged in the positioning sleeve (12).

Images