CN203973393U - The cooling wheel dressing mechanism of centreless grinding line - Google Patents

Abstract

The utility model relates to the cooling wheel dressing mechanism of a kind of centreless grinding line, comprises diamant, water outlet nozzle, Buddha's warrior attendant tool rest, water jacket, dresser shaft, finishing axle bed, cooling water channel, warter connection, screw rod, nut etc.When this member has solved grinder wheel finishing, diamond pen and emery wheel are cooling insufficient, diamond pen quick abrasion, emery wheel scouring effect is poor, the not controlled difficult problem of cooling water when finishing, the four bundle high-pressure cooling waters that eject in cooling body surround diamant, make it fully cooling, wash away and cooling emery wheel, improve 5 times of diamant service lifes, improve crushing quality; The product size high conformity of processing, extends single finishing 15-20% in service life, and product surface quality is high, stops the defect such as dark line, screw thread, ring line of workpiece grinding face.This burring machine is simple in structure, and long service life all can be installed on grinding machine, has wide popularizing application prospect.

Description

Centerless Grinding Beam Cooling Grinding Wheel Dressing Mechanism

technical field

The utility model relates to a centerless grinding beam flow cooling grinding wheel dressing mechanism, which belongs to the field of mechanical processing of valves. the

Background technique

In the machining process of valves, grinding is widely used, such as the small end of the valve, the rod, the arc, the plane, the lock groove, the cone, etc. The valve is the core moving part of the engine and must have high strength and good durability. Abrasion resistance and fatigue resistance. Therefore, the grinding quality requirements are very high when processing valves, and the smoothness Ra is usually required to be above 0.32, and the shape tolerance of most grinding surfaces is required to be at the μ level. the

There are many factors affecting the grinding quality, but grinding wheel dressing is the main reason. The quality of the dressing of the grinding wheel is related to the dressing diamond pen, dressing speed, cooling and other factors. The traditional centerless grinding machine dressing diamond pen is installed on the dressing shaft, and the dressing shaft is driven by the screw nut pair to slide in the dresser seat to realize the compensation of the diamond pen during the dressing of the grinding wheel. The movement range of the diamond pen is 50-60mm, and the cooling water channel is The copper pipe installed on the trimmer base is fixed with the trimmer base, so the flow rate, direction and position of the cooling water outlet of the cooling water remain unchanged, and its cooling effect on the moving diamond pen is unreliable and effective. Difference. the

Contents of the invention

In order to solve the deficiencies of the prior art, the utility model provides a centerless grinding beam flow cooling grinding wheel dressing mechanism, so that the cooling water flows from the cooling water channel in the dressing shaft to the water outlet nozzle, forming four beams of high-pressure water flow on both sides of the diamond knife , to achieve the effect of cooling the diamond knife, and at the same time cool and wash the grinding wheel in the dressing area. Obviously, the cooling water always wraps the diamond knife, which effectively improves the cooling of the diamond knife and the dressing effect of the grinding wheel. the

The technical scheme adopted by the utility model for solving the technical problem is: a centerless grinding beam flow cooling grinding wheel dressing mechanism is provided, including a servo motor mounting seat with a servo motor installed, a dresser seat connected with the servo motor mounting seat, And the dressing shaft installed in the dresser seat driven by the servo motor, one end of the dresser shaft protrudes from the dresser seat, the diamond knife seat is fixed at the center of the end of the dresser shaft, and the water outlet nozzle is fixed to the end of the dresser shaft through the water jacket At this end, the water outlet nozzle, the water jacket and the dressing shaft are all provided with screw holes. The diamond knife pressing screw is installed on the diamond knife seat, and the knife head part protrudes through the water jacket and the in-line through hole on the water outlet nozzle; the dressing shaft is provided with a cooling water channel, and the water outlet of the cooling water channel The through hole set on the water jacket leads to the water inlet and spray hole of the water outlet nozzle; the water inlet of the cooling water channel is set above the dressing shaft and communicates with the cooling water joint installed on the dresser seat; An elliptical through hole is provided at the water joint for the cooling water joint to move along with the dressing shaft. the

Further, a through hole is provided in the mounting seat of the servo motor, the servo motor is connected with one end of the screw through a coupling, and the other end of the screw passes through the through hole of the mounting seat of the servo motor, and is fixed to the trimming shaft through a nut in a blind hole at one end. the

Further, the water outlet nozzle is provided with an annular water channel, so that the water inlet communicates with the 4 water spray holes; the 4 water spray holes are located on both sides of the diamond knife. the

Further, the water outlet nozzle is provided with a counterbore at the screw. the

Further, four diamonds are inlaid side by side on the diamond knife. the

The beneficial effect that the utility model has based on its technical scheme is:

(1) The beam cooling grinding wheel dressing mechanism of the utility model has a simple structure. It only needs to carry out a simple modification to the dressing mechanism of the existing centerless grinding machine, and still retains the original servo motor mounting seat, coupling, screw rod, nut, dressing shaft, The main trimming parts such as the trimmer seat, the technical difficulty is not big, and the cost is low;

(2) There is an elliptical through hole at the cooling water joint above the dresser base of the utility model as the cooling water joint slideway, the servo motor rotates through the screw nut to drive the dressing shaft to reciprocate to realize compensation and dressing, and the cooling water joint can follow the dressing axis movement;

(3) The diamond knife of the present utility model is that four diamond particles are inlaid in a flat plane, which can be understood as four diamond pens side by side used at the same time. When one diamond particle is slightly worn, the other Diamond particles continue to dress the grinding wheel, which improves the service life of the diamond knife and ensures the quality of the dressing of the grinding wheel;

(4) The utility model divides the high-pressure cooling water into four beams of high-pressure water flow from the coolant joint, the cooling water channel in the dressing shaft, the water jacket, and the water outlet nozzle. The cooling water wraps the diamond knife, and the cooling is sufficient and reliable, and the service life of the diamond knife The rate is increased by more than 5 times;

(5) The utility model uses the high-pressure water jetted from the cooling water channel, water jacket and water outlet nozzle to wash the dressing area, cool the grinding wheel, and has a scouring effect on the surface of the grinding wheel, which ensures that the surface of the grinding wheel is clean, improves the grinding force of the grinding wheel, and effectively improves The working conditions of grinding can be reduced by 15-20% for grinding wheel dressing frequency;

(6) The beam-cooled grinding wheel dressing mechanism of the utility model has a simple structure and is not only suitable for being installed on a centerless grinding machine, but also suitable for being installed on other types of grinding machines, and has broad prospects for popularization and application. the

Description of drawings

Fig. 1 is a schematic cross-sectional view of the structure of the centerless grinding beam cooling grinding wheel dressing mechanism;

Fig. 2 is a part diagram of the centerless grinding beam flow cooling grinding wheel dressing mechanism;

Fig. 3 is a schematic diagram of the assembled dressing shaft, diamond tool seat, water jacket, and water outlet nozzle. the

In the figure: 1-diamond knife, 2-water outlet nozzle, 3-diamond knife seat, 4-water jacket, 5-dressing shaft, 6-dresser seat, 7-cooling water channel, 8-cooling water joint, 9-screw, 10-nut, 11-cooling water, 12-grinding wheel, 13 servo motor mounting seat, 14-coupling, 15-servo motor, 16-diamond knife compression screw, 17-water inlet of cooling water channel, 18-cooling water channel Water outlet, 19-screws, 20-counterbores, 21-spray holes, 22-cooling water joint slides. the

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described. the

With reference to Fig. 1, Fig. 2 and Fig. 3, the utility model provides a centerless grinding beam cooling grinding wheel dressing mechanism, including a servo motor mounting seat 13 with a servo motor 15 installed, and a dresser seat connected to the servo motor mounting seat 13 6. And the trimming shaft 5 passing through the through hole provided in the trimmer seat 6. Described servo motor mount 13 is provided with through hole, and described servo motor 15 is connected with one end of screw rod 9 by coupling 14, and the other end of screw rod 9 passes through the through hole of servo motor mount 13, and passes nut 10 It is fixed in the blind hole at one end of the dressing shaft 5, and the rotation of the servo motor 15 drives the dressing shaft to reciprocate through the screw rod 8 and the nut 10 to realize compensation dressing. the

The other end of the trimming shaft 5 stretches out the trimmer seat 6, the diamond knife seat 3 is fixed at the end center of the trimming shaft 5, the water outlet nozzle 2 is fixed at this end of the trimming shaft 5 by the water jacket 4, the water outlet nozzle 2, Both the water jacket 4 and the trimming shaft 5 are provided with screw holes, and the screws 19 pass through the screw holes of the water jacket 4 and the trimming shaft 5 and are fixed in the screw holes of the trimming shaft 5 to connect the water outlet nozzle 2, the water jacket 4 and the trimming shaft 5; The water outlet nozzle 2 is provided with a counterbore 20 at the screw 19 , so that the screw 19 sinks into the counterbore 20 . the

The diamond knife 1 is mounted on the diamond knife holder 3 through the diamond knife pressing screw 16, and the cutter head part protrudes through the inline through hole on the water jacket 4 and the water outlet nozzle 2, and the diamond knife is inlaid side by side with 4 grain diamond; when a diamond grain is slightly worn, another diamond grain continues to dress the emery wheel 12, which improves the service life of the diamond knife. the

The dressing shaft 5 is provided with a cooling channel 7 . The water outlet 18 of the cooling water channel leads to the water inlet and the water spray hole 21 of the water outlet nozzle through the through hole provided on the water jacket 4; The cooling water joint 8 communicates. the

An elliptical through hole is provided at the cooling water joint 8 on the top of the dresser base 6, as the cooling water joint slideway 22, the servo motor 15 rotates and drives the dressing shaft 5 to reciprocate through the screw 9 and the nut 10 to realize compensation. 8 can follow the trimming axis 5 to move. the

The water outlet nozzle 2 is provided with an annular water channel, so that its water inlet communicates with 4 water spray holes 21; the 4 water spray holes are located on both sides of the diamond knife. The cooling water 11 is sprayed from the water spray hole 21 through the annular water channel to form four beams of high-pressure water flow to achieve the purpose of cooling. the

Claims (5)

1. A centerless grinding beam flow cooling grinding wheel dressing mechanism, including a servo motor mounting seat with a servo motor installed, a dresser seat connected to the servo motor mounting seat, and a dressing shaft driven by a servo motor installed in the dresser seat, It is characterized in that: one end of the trimming shaft protrudes from the trimmer seat, the diamond knife seat is fixed at the center of the end of the trimming shaft, the water outlet nozzle is fixed on the end of the trimming shaft through a water jacket, the water outlet nozzle, the water jacket and the trimming shaft There are screw holes, and the screws pass through the screw holes of the water jacket and the dressing shaft and are fixed in the screw holes of the dressing shaft to connect the water outlet nozzle, the water jacket and the dressing shaft; the diamond knife is installed on the diamond knife through the diamond knife pressing screw. On the seat, the cutter head part protrudes through the water jacket and the in-line through hole on the water outlet nozzle; the dressing shaft is provided with a cooling water channel, and the water outlet of the cooling water channel leads to the water outlet through the through hole set on the water jacket. The water inlet of the nozzle and the water spray hole; the water inlet of the cooling water channel is set above the trimming shaft and communicates with the cooling water joint installed on the dresser seat; an elliptical through hole is provided at the cooling water joint above the dresser seat for The cooling water connection follows the movement of the dressing shaft. the 2. The centerless grinding beam cooling grinding wheel dressing mechanism according to claim 1, characterized in that: a through hole is provided in the mounting seat of the servo motor, the servo motor is connected with one end of the screw through a coupling, and the screw The other end passes through the through hole of the servo motor mounting base, and is fixed in the blind hole at one end of the trimming shaft through a nut. the 3. The dressing mechanism for centerless grinding beam cooling grinding wheel according to claim 1, characterized in that: said water outlet nozzle is provided with an annular water channel, so that its water inlet communicates with 4 water spray holes; said 4 water spray holes The holes are located on both sides of the diamond knife. the 4. The dressing mechanism for centerless grinding beam cooling grinding wheel according to claim 1, characterized in that: the water outlet nozzle is provided with a countersunk hole at the screw. the 5. The dressing mechanism for centerless grinding beam cooling grinding wheel according to claim 1, characterized in that 4 diamonds are inlaid side by side on the diamond knife. the