阅读说明：本技术 一种研磨机上盘机构 (Grind quick-witted hanging wall mechanism ) 是由 许亮 周跃龙 罗小百 邓如欣 方贵学 于 2021-09-22 设计创作，主要内容包括：一种研磨机上盘机构,包括主体,主体的上端设有加压气缸,主体内设有主轴,加压气缸与主轴连接,主体的上部侧壁设有条形槽,主轴上设有限位块,限位块沿条形槽上下滑动,主轴在条形槽处设有安全气缸,所述安全气缸上设有安全杆,安全杆用于支撑限位块,主轴下端通过键与关节齿轮组连接,关节齿轮组与砂轮固定盘连接。本发明通过设置安全气缸,能在突然断电或断气等的情况下,避免砂轮出现掉落的风险。采用关节齿轮结构自动调节上下砂轮的平行。因关节齿轮万向调节灵活,调节角度大,不存在卡滞的风险。在关节齿轮结构上设置自动润滑油路,能降低齿轮磨损、异响、发热的风险。(The utility model provides a grind quick-witted hanging wall mechanism, includes the main part, and the upper end of main part is equipped with pressurized cylinder, is equipped with the main shaft in the main part, and pressurized cylinder is connected with the main shaft, and the upper portion lateral wall of main part is equipped with the bar groove, is equipped with the stopper on the main shaft, and the stopper slides from top to bottom along the bar groove, and the main shaft is equipped with safety cylinder in bar groove department, the last safety lever that is equipped with of safety cylinder, safety lever are used for supporting the stopper, and the main shaft lower extreme passes through the key and is connected with joint gear group, and joint gear group is connected with the emery wheel fixed disk. By arranging the safety cylinder, the invention can avoid the risk of falling of the grinding wheel under the conditions of sudden power failure or gas failure and the like. The joint gear structure is adopted to automatically adjust the parallelism of the upper grinding wheel and the lower grinding wheel. Because the universal regulation of joint gear is nimble, angle regulation is big, does not have the risk of jamming. The automatic lubricating oil way is arranged on the joint gear structure, so that the risks of gear abrasion, abnormal sound and heating can be reduced.)

1. The utility model provides a grind quick-witted hanging wall mechanism, includes the main part, the upper end of main part is equipped with pressurized cylinder, be equipped with the main shaft in the main part, pressurized cylinder is connected with the main shaft, its characterized in that: the grinding wheel grinding machine is characterized in that a strip-shaped groove is formed in the side wall of the upper portion of the main body, a limiting block is arranged on the main shaft, the limiting block slides up and down along the strip-shaped groove, a safety cylinder is arranged at the position of the strip-shaped groove of the main shaft, a safety rod is arranged on the safety cylinder and used for supporting the limiting block, the lower end of the main shaft is connected with a joint gear set through a key, the joint gear set is connected with a grinding wheel fixing disc, the joint gear set comprises an inner joint gear and an outer joint gear which are meshed with each other, the inner joint gear is connected with the main shaft through the key, a joint gear upper pressing cover and a joint gear lower pressing cover are pressed outside the inner joint gear, lubricating oil passages are arranged on the joint gear upper pressing cover and the joint gear lower pressing cover, the joint gear and the joint gear upper pressing cover and the joint gear lower pressing cover are spherical, and the joint gear upper pressing cover and the joint gear lower pressing cover enable the outer joint gear to swing along the outer spherical surface of the inner joint gear in a universal mode, thereby adjusting the parallelism of the grinding wheel.

2. The grinder upper plate mechanism of claim 1, wherein: the inner joint gear adopts crowned teeth.

3. The grinder upper plate mechanism of claim 1, wherein: the upper gland of the joint gear and the lower gland of the joint gear are fixed on the outer joint gear.

4. The grinder upper disc mechanism according to any one of claims 1 to 3, characterized in that: the main part is equipped with gear motor and crossbeam stand, gear motor installs on the crossbeam stand, on the cylinder support installation gear motor, the upper end at the cylinder support is installed to the pressurized cylinder, be equipped with the fixed axle in the main part, the piston rod and the fixed axle of pressurized cylinder pass through floating joint and are connected, the fixed axle is equipped with two thrust ball bearings outward, thrust ball bearing installs in little bearing frame, little bearing frame is connected with the main shaft.

5. The grinder upper disc mechanism according to any one of claims 1 to 4, wherein: the main shaft is provided with an angular contact ball bearing and a tapered roller bearing, the angular contact ball bearing and the tapered roller bearing are arranged in a bearing seat, the bearing seat is arranged in a sliding sleeve, and the sliding sleeve is fixed on the cross beam stand column.

6. The grinder upper plate mechanism of claim 1, wherein: and a displacement sensor is arranged at the central position of the grinding wheel fixing disc.

7. The grinder upper plate mechanism of claim 4, wherein: the safety cylinder is installed on the cylinder support, the cylinder support is installed on the gear motor, and the safety rod is connected with a piston rod of the safety cylinder.

8. The grinder upper plate mechanism of claim 4, wherein: the grinding machine is characterized in that the beam upright post is arranged on the grinding machine box body through an upright post main shaft, a cross roller bearing is arranged on the upright post main shaft, and the beam upright post is arranged on the cross roller bearing.

Technical Field

The invention relates to a grinding machine, in particular to an upper disc mechanism of the grinding machine.

Background

On a general grinding device, the rotation of the upper disc is driven by a variable frequency motor, the upper disc is pressurized by a pressurizing cylinder of the upper disc, and the automatic leveling of the upper disc is leveled by adopting a ball hinge.

However, after the upper disc is lifted by the pressurizing cylinder, the upper disc is guaranteed not to fall down any more by the cylinder and the electromagnetic valve, and potential safety hazards exist.

The upper disc main shaft system adopts two groups of angular contact ball bearings, the requirements on processing precision and assembly precision are high, and the axial clearance is not easy to adjust.

The upper disc mechanism has no lubrication at the ball hinge, and is easy to have the problems of abrasion, heating, abnormal sound and the like.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and providing the upper disc mechanism of the grinding machine, which can reduce the potential safety hazard of grinding wheel falling and has good leveling effect and lubricating effect.

The technical scheme adopted by the invention for solving the technical problems is as follows: a grinding machine upper disc mechanism comprises a main body, wherein a pressurizing cylinder is arranged at the upper end of the main body, a main shaft is arranged in the main body and connected with the main shaft, a strip-shaped groove is formed in the side wall of the upper portion of the main body, a limiting block is arranged on the main shaft and slides up and down along the strip-shaped groove, a safety cylinder is arranged at the strip-shaped groove of the main shaft, a safety rod is arranged on the safety cylinder and used for supporting the limiting block, the lower end of the main shaft is connected with a joint gear set through a key, the joint gear set is connected with a grinding wheel fixing disc and comprises an inner joint gear and an outer joint gear which are meshed with each other, the inner joint gear is connected with the main shaft through a key, an upper joint gear gland and a lower joint gear gland are pressed outside the inner joint gear, and lubricating oil paths are arranged on the upper joint gear gland and the lower joint gear gland, the joint of the inner joint gear and the upper gland of the joint gear and the lower gland of the joint gear is spherical, and the upper gland of the joint gear and the lower gland of the joint gear enable the outer joint gear to perform universal swing along the outer spherical surface of the inner joint gear, so that the parallelism of the grinding wheel is adjusted.

The joint gear structure is adopted to automatically adjust the parallelism of the upper grinding wheel and the lower grinding wheel, and an automatic lubricating oil way is added to the structure, so that the risks of gear abrasion, abnormal sound and heating are reduced.

Further, the inner joint gear adopts crowned teeth.

Furthermore, the upper gland of the joint gear and the lower gland of the joint gear are fixed on the outer joint gear.

Further, the main part is equipped with gear motor and crossbeam stand, gear motor installs on the crossbeam stand, and on the cylinder support installation gear motor, pressurized cylinder installs the upper end at cylinder support, be equipped with the fixed axle in the main part, pressurized cylinder's piston rod passes through floating joint with the fixed axle and is connected, the fixed axle is equipped with two thrust ball bearings outward, thrust ball bearing installs in the little bearing frame, the little bearing frame is connected with the main shaft.

Furthermore, a contact ball bearing and a tapered roller bearing are arranged outside the main shaft, the contact ball bearing and the tapered roller bearing are arranged in a bearing seat, the bearing seat is arranged in a sliding sleeve, and the sliding sleeve is fixed on the cross beam upright post. The upper disc main shaft system adopts a structure of a group of angular contact ball bearings and a tapered roller bearing, so that the bearing is larger, the processing and assembling requirements are reduced, and the clearance is more convenient to adjust.

Furthermore, a displacement sensor is arranged at the central position of the grinding wheel fixing disc.

Further, safety cylinder installs on cylinder support, cylinder support installs on gear motor, safety lever and safety cylinder's piston rod are connected.

Further, the crossbeam stand is installed on the grinder box through the stand main shaft, be equipped with cross roller bearing on the stand main shaft, the crossbeam stand is installed on cross roller bearing.

By arranging the safety cylinder, the invention can avoid the risk of falling of the grinding wheel under the conditions of sudden power failure or gas failure and the like. The joint gear structure is adopted to automatically adjust the parallelism of the upper grinding wheel and the lower grinding wheel, and the preferred scheme is adopted. Because the universal regulation of joint gear is nimble, angle regulation is big, does not have the risk of jamming. The automatic lubricating oil way is arranged on the joint gear structure, so that the risks of gear abrasion, abnormal sound and heating can be reduced.

Drawings

FIG. 1 is a structural cross-sectional view of an embodiment of the present invention.

Fig. 2 is a schematic overall structure diagram of the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a joint gear set according to an embodiment of the present invention.

In the figure: 1. the device comprises a main body, 101, a pressurizing cylinder, 102, a strip-shaped groove, 2, a floating joint, 3, a fixed shaft, 4, a thrust ball bearing, 5, a main shaft, 6, a speed reducing motor, 7, a first angular contact ball bearing, 8, a bearing seat, 9, a sliding sleeve, 10, a tapered roller bearing, 11, a joint gear upper gland, 12, an inner joint gear, 13, a joint gear lower gland, 14, a digging joint gear, 15, a grinding wheel fixing disc, 16, a displacement sensor, 17, a second angular contact ball bearing, 18, a stand column main shaft, 19, a cross roller bearing, 20, a cross beam stand column, 21, a needle roller bearing, 22, a speed reducing machine seat, 23, a small bearing seat, 24, a safety rod, 25, a safety cylinder, 26, a cylinder bracket, 27, a rotating cylinder, 28, a bolt cylinder, 29, a buffer, 501 and a limiting block.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

As shown in fig. 1 to 3, the present embodiment includes a main body 1, a pressurizing cylinder 101 provided at the top end of the main body 1, a main shaft 5 is arranged in the main body 1, the pressurizing cylinder 101 is connected with the main shaft 5, a strip-shaped groove 102 is arranged on the side wall of the upper part of the main body 1, a limiting block 501 extending outwards is arranged on the main shaft 5, the limiting block 501 slides up and down along the strip-shaped groove 102, the main shaft 5 is provided with a safety cylinder 25 at the strip-shaped groove, one section of the safety rod 24 is hinged with a piston rod of the safety cylinder 25, the other end is connected with a supporting limit block 501, the safety rod 24 is used for supporting the limiting block 501, the lower end of the main shaft 5 is connected with the inner joint gear 12 through a key, the inner joint gear 12 is meshed with the outer joint gear 14, the inner joint gear 12 presses the upper gland 11 and the lower gland 13 of the joint gear externally, and the upper gland 11 and the lower gland 13 of the joint gear are fixed on the outer joint gear 14. The external joint gear 14 is connected with a grinding wheel fixing disc 15. The center of the grinding wheel fixing disc 15 is provided with a bearing seat and a hollow shaft of a second angular contact ball bearing 17, and the hollow shaft is provided with a displacement sensor 16. The safety cylinder 25 is mounted on the cylinder bracket 26, and the safety rod 24 is connected with a piston rod of the safety cylinder 25.

The joint parts of the inner joint gear 12, the joint gear upper gland 11 and the joint gear lower gland 14 are all spherical pair connecting tooth parts which are crowned teeth (the addendum circle and the dedendum circle are spherical shapes concentric with the inner joint gear 12), so that the joint gear upper gland 11 and the joint gear lower gland 13 enable the outer joint gear 14 to swing along the outer spherical surface of the inner joint gear 12 in a universal way. That is, the grinding wheel can swing universally, so that the parallelism of the upper grinding wheel and the lower grinding wheel can be adjusted. The upper gland 11 of the joint gear and the lower gland of the joint gear are provided with lubricating oil passages, so that lubricating oil can conveniently enter the outer surface of the joint gear, and the risks of gear abrasion, abnormal sound and heating are reduced.

The movement of the pressurizing cylinder 1 is utilized to drive the upper disc to lift, so as to pressurize the workpiece. The gear motor 6 drives the upper disc to rotate, but cannot drive the piston rod of the pressurizing cylinder 1 to rotate, and the joint gear is used for automatically adjusting the parallelism between the upper grinding wheel and the lower grinding wheel.

The speed reducing motor 6 is arranged on a speed reducing base 22, the speed reducing base 22 is arranged on the beam upright post 20, the air cylinder bracket 26 is arranged on the speed reducing motor 6, and the pressurizing air cylinder 1 is arranged on the air cylinder bracket 26. The floating joint 2 is connected with a piston rod of the pressurizing cylinder 1 and a fixed shaft 3, two thrust ball bearings 4 are arranged outside the fixed shaft 3, the thrust ball bearings 4 are arranged in a small bearing seat 23, and the small bearing seat 23 is connected with a main shaft 5. A first angular contact ball bearing 7 and a tapered roller bearing 10 are mounted outside the main shaft 5, and the first angular contact ball bearing 7 and the tapered roller bearing 10 are mounted in a bearing seat 8. The bearing block 8 is arranged in a sliding sleeve 9, and the sliding sleeve 9 is fixed on the beam upright post 20.

The speed reducing motor 6 adopts a bevel gear speed reducer, the main shaft 5 penetrates through the output end of the speed reducing motor 6 and forms axial restraint with the speed reducing motor 6 through a flat key or a spline, so that the main shaft 5 can slide up and down along the output end of the speed reducing motor 6 while rotating under the drive of the speed reducing motor 6, the upper end of the main shaft 5 is connected with the fixed shaft 3 through a thrust ball bearing 4, the other end of the main shaft drives the inner joint gear 12 to rotate through the flat key, and then the outer joint gear 14 meshed with the inner joint gear 12 is driven to rotate, and the outer joint gear 14 drives the grinding wheel fixing disc 15 to rotate. The pressurizing cylinder 1 pushes the main shaft 5 to lift, and further pushes the grinding wheel fixing disc 15 to lift. The grinding wheel is arranged on the grinding wheel fixing disc 15, and the grinding wheel fixing disc 15 is lifted, namely the grinding wheel is lifted. And (3) normal processing: the pressurizing cylinder 101 is in an extending state, the safety cylinder 25 is in a retracting state, after the pressurizing cylinder 101 retracts, the cylinder magnetic switch senses the position of the pressurizing cylinder 101, the control program sends out a control signal to control the safety cylinder 25 to extend, so that the safety rod 24 is driven to extend, the limiting block 501 is driven to slide to the upper limiting position of the strip-shaped groove 102, and the spindle 5 is prevented from falling down again.

In the scheme, the upright post main shaft 18 is fixed on the grinding machine box body; the crossed roller bearing 19 is arranged on the upright main shaft 18, the beam upright 20 is arranged on the crossed roller bearing 19, and the needle roller bearing 21 is arranged in the beam upright 20. The rotary cylinder 27 and the buffer 29 are fixed on the grinding machine box body, and the bolt cylinder 28 is fixedly connected with the beam upright post 20 through a cylinder mounting plate. The piston rod of the rotary cylinder 27 is connected with the beam upright 20. During operation, the rotary cylinder 27 extends out, the beam upright post 20 rotates and swings out, and then the whole upper disc mechanism swings out, so that an operation space is made, and workpieces can be conveniently loaded and unloaded. When the feeding and discharging are completed, the rotary cylinder 27 retracts, the beam upright post 20 retracts, and then the bolt cylinder 28 drives the bolt to extend, so that the beam upright post 20 is fixed on the box body, and the upper disc structure is prevented from shaking in the machining process. The damper 29 serves to damp impact force when the beam column 20 is retracted and extended.

Various modifications and variations of the present invention may be made by those skilled in the art, and they are also within the scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.

What is not described in detail in the specification is prior art that is well known to those skilled in the art.