CN212444625U

CN212444625U - Universal grinding machine

Info

Publication number: CN212444625U
Application number: CN202020844099.4U
Authority: CN
Inventors: 隋励丽; 陈猛
Original assignee: Kaige Spindle Technology Dalian Co ltd
Current assignee: Kaige Spindle Technology Dalian Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-02-02
Anticipated expiration: 2030-05-20

Abstract

The utility model provides a universal grinder, belongs to grinding machine technical field, connects major axis, work piece chuck, tailstock, grinding machine lathe bed including axle bush, rotatory hinge support, motor, bearing, pivot, emery wheel, the grinding machine lathe bed, one side is equipped with the tailstock on the grinding machine lathe bed, is equipped with the work piece chuck on the tailstock, be equipped with rotatory hinge support in tailstock opposite side on the grinding machine lathe bed, it has the axle bush to articulate on the rotatory hinge support, be equipped with the motor in the axle bush, the pivot and the emery wheel of motor connect the major axis to link to each other, the emery wheel connects the major axis to link to. The motor is directly arranged in a bearing bush of the grinding machine, belt transmission is omitted, grinding with high precision, high linear speed, high rigidity and high stability is achieved, and machining precision of the internal grinding of the grinding machine is greatly improved.

Description

Universal grinding machine

Technical Field

The utility model belongs to the technical field of the grinding machine, in particular to universal grinding machine.

Background

The machine tool is used as a 'mother machine' for industrial manufacture, the upgrade iteration of the machine tool is particularly important for the upgrade transformation of the modern Chinese manufacturing industry, although China has become the largest machine tool manufacturing country for a long time, the machine tools required by high-end manufacture and high-end manufacture have a small gap with developed countries in Europe and America, and the problem can be clearly illustrated by the universal cylindrical grinding machine produced in China.

The universal cylindrical grinding machine is compact in structure, convenient to clamp and process workpieces, capable of achieving grinding of inner circles and outer circles, particularly suitable for machining of small-quantity sporadic workpieces, quite wide in application range in the machining industry, and capable of being used together from the process of grinding, and has no big change for decades, bearing bushes of the cylindrical grinding machine are changed into bearing supports or mechanical shafts into static pressure shafts at most, and domestic universal grinding machine production enterprises are in the mode.

In the original structure, a grinding wheel and a long connecting shaft of the grinding wheel are arranged on a rotating shaft of a mechanical shaft in a common bearing bush, the bearing bush rotates along with a rotating hinge support, the bearing bush rotates down when working and pushes up when not working, the bearing bush does not interfere with movement of a rear center, the front end of the rotating shaft of the mechanical shaft is connected with a long shaft of the grinding wheel, the rear end of the rotating shaft of the mechanical shaft is connected with a belt wheel, a belt is connected with a motor arranged on a grinder body, and the motor drives the belt to drive the rotating shaft of the mechanical shaft. The tail frame is provided with a workpiece chuck which clamps a processed workpiece. Especially, the inner circle grinding block can not meet the requirement of high-precision inner circle grinding, the motor drives the mechanical shaft through belt transmission, and the mechanical shaft drives the grinding wheel to grind the inner hole. The main problems are as follows: 1. the vibration caused by the transmission of the motor and the belt seriously affects the stability of the whole platform of the machine tool; 2. the rigidity of the mechanical shaft cannot meet the requirement of high-precision grinding; 3. low line speed grinding does not achieve the required roughness.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide an original transmission mode of cancellation, with motor direct mount in the axle bush of grinding machine, cancel belt drive to realize high accuracy, high linear speed, high rigidity, high stability grinding, improve the machining precision of the internal grinding of grinding machine by a wide margin.

The utility model adopts the following technical scheme:

a universal grinding machine comprises a bearing bush, a rotary hinge support, a motor, a bearing, a rotating shaft, a grinding wheel connecting long shaft, a workpiece chuck, a tailstock and a grinding machine body, wherein the tailstock is arranged on one side of the grinding machine body, the workpiece chuck is arranged on the tailstock, the rotary hinge support is arranged on the grinding machine body on the opposite side of the tailstock, the rotary hinge support is hinged to the bearing bush, the motor is arranged in the bearing bush, the rotating shaft of the motor is connected with the grinding wheel connecting long shaft, and the grinding wheel connecting long shaft is connected with the grinding wheel.

Furthermore, the bearing bush is an open-close shell, and the bottom of the bearing bush is locked and fixed through bolts.

Furthermore, the rotary hinge support and the upper portion of the bearing bush are coaxially arranged, and a hinge is arranged between the rotary hinge support and the bearing bush.

The utility model has the advantages that:

the utility model discloses with motor direct mount in the axle bush of grinding machine, cancel belt drive to realize high accuracy, high linear speed, high rigidity, high stability grinding, improve the machining precision of the internal grinding of grinding machine by a wide margin.

Drawings

Fig. 1 is a schematic view of the structure of the grinding machine of the present invention.

In the figure: 1-bearing bush; 2-rotating the hinge bracket; 3, a motor; 4-a bearing; 5-a rotating shaft; 6-grinding wheel; 7-connecting a grinding wheel with a long shaft; 8-a workpiece chuck; 9-a tailstock; 10-grinding machine body.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

A universal grinder comprises a bearing bush 1, a rotary hinge support 2, a motor 3, a bearing 4, a rotating shaft 5, a grinding wheel 6, a grinding wheel connecting shaft 7, a workpiece chuck 8, a tailstock 9 and a grinder body 10, wherein the tailstock 9 is arranged on one side of the grinder body 10, the workpiece chuck 8 is arranged on the tailstock 9, the rotary hinge support 2 is arranged on the grinder body 10 on the opposite side of the tailstock 9, the bearing bush 1 is a shell and can be opened and closed, the motor 3 is arranged in the bearing bush 1, the bottom of the bearing bush 1 is locked and fixed through a bolt, the rotating shaft 5 of the motor 3 is tightly held at the opening of the bearing bush 1, and the upper portion of the bearing bush 1 is hinged and connected with the rotary hinge support 2. Specifically, a transverse shaft is arranged at the upper part of the rotating hinge support 2, the upper part of the bearing bush 1 and the shaft at the upper part of the rotating hinge support 2 are coaxially arranged, a hinge is sleeved outside the shaft and is respectively contacted with the bearing bush 1 and the rotating hinge support 2, and the bearing bush 1 can be lifted and put down relative to the rotating hinge support 2.

The rotating shaft 5 of the motor 3 is connected with the grinding wheel long connecting shaft 7, and the grinding wheel long connecting shaft 7 is connected with the grinding wheel 6.

The utility model discloses install the motor in special axle bush 1, this special axle bush 1 is different from the ordinary axle bush of installation mechanical axis, and it can install the motor, and special axle bush rotates along with rotatory hinge bracket 2, and the during operation is changeed down, pushes away when out of work and goes, and it does not interfere the top removal in back, cancels belt and belt pulley, and the pivot 5 of motor directly connects major axis 7 with the emery wheel to be connected, and drive emery wheel 6 carries out the grinding.

Claims

1. A universal grinding machine is characterized in that: the grinding wheel connecting device comprises a bearing bush (1), a rotary hinge support (2), a motor (3), a bearing (4), a rotating shaft (5), a grinding wheel (6), a grinding wheel connecting long shaft (7), a workpiece chuck (8), a tailstock (9) and a grinding machine body (10), wherein the tailstock (9) is arranged on one side of the grinding machine body (10), the workpiece chuck (8) is arranged on the tailstock (9), the rotary hinge support (2) is arranged on the opposite side of the tailstock (9) on the grinding machine body (10), the rotary hinge support (2) is hinged to the bearing bush (1), the motor (3) is arranged in the bearing bush (1), the rotating shaft (5) of the motor (3) is connected with the grinding wheel connecting long shaft (7), and the grinding wheel connecting long shaft (7) is connected with the grinding wheel (6).

2. The universal grinding machine as claimed in claim 1, wherein: the bearing bush (1) is an opening and closing shell, and the bottom of the shell is locked and fixed through bolts.

3. The universal grinding machine as claimed in claim 1, wherein: the rotary hinge support (2) is coaxially arranged with the upper part of the bearing bush (1), and a hinge is arranged between the rotary hinge support (2) and the bearing bush (1).