CN110919371A

CN110919371A - Turning and grinding integrated machine tool

Info

Publication number: CN110919371A
Application number: CN201811091754.7A
Authority: CN
Inventors: 杨远圆; 杨碧荣
Original assignee: WUXI ZHENGYANG PAPERMAKING MACHINERY Co Ltd
Current assignee: WUXI ZHENGYANG PAPERMAKING MACHINERY Co Ltd
Priority date: 2018-09-19
Filing date: 2018-09-19
Publication date: 2020-03-27

Abstract

The invention relates to the field of machine tools, and discloses a turning and grinding integrated machine tool, which comprises a first machine body, a second machine body, a machine head box, a main shaft, a tool rest assembly, a grinding head assembly, a tailstock center device, a third machine body, a side tool rest seat, a side tool rest, a side grinding frame, an open center frame, a closed center frame, a side tool radial feeding fine adjustment mechanism, a side grinding radial feeding fine adjustment mechanism, an X-axis workpiece axial feeding mechanism, a Z1 axial side tool radial feeding mechanism and a Z2 axial grinding radial feeding mechanism; the side tool rest seat and the side grinding rest seat are respectively and fixedly arranged on two sides of the first lathe bed; the side tool rest and the side grinding frame are respectively arranged on the side tool rest seat and the side grinding frame seat; the tool rest assembly and the grinding head assembly are respectively arranged on the side tool rest and the side grinding frame; the headstock, the open-close type center frame and the tailstock center device are all arranged on a third lathe bed; the third lathe bed is arranged on the second lathe bed; the second bed is mounted on the first bed. The invention has high working efficiency, high precision and long service life.

Description

Turning and grinding integrated machine tool

Technical Field

The invention relates to the field of machine tools, in particular to a turning and grinding integrated machine tool which integrates a workpiece lathe and a grinding machine.

Background

Machine tools are machines for manufacturing machines, also called machine tools or machine tools, and are conventionally called machine tools for short. Generally, the machining method is divided into a metal cutting machine, a forging machine, a woodworking machine and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool. The machine tool plays an important role in the construction of national economy modernization.

Lathes are the most widely used class in machine manufacturing and repair plants. A lathe is a machine tool for turning a rotating workpiece mainly with a lathe tool. The lathe can also be used for corresponding processing by using a drill bit, a reamer, a screw tap, a die, a knurling tool and the like. The lathe is mainly used for processing shafts, discs, sleeves and other workpieces with rotating surfaces, and has the advantages of high efficiency and general precision but can meet most of workpieces, and the lathe can only move in two dimensions.

The grinding machine is a machine tool with higher precision requirement on manufacturing a workpiece, and the grinding machine grinds the surface of the workpiece by using a grinding tool. Most grinding machines perform grinding using a grinding wheel rotating at a high speed, and a few grinding machines perform grinding using oilstones, sanding belts and other grinders and free abrasives, such as honing machines, superfinishing machines, sanding belt grinders, grinding machines, polishing machines, and the like. The advantage of the grinding machine is that the precision is high. Its advantages are low efficiency and high precision machining of plane, cylinder and sphere.

Along with the rapid development of industrial mechanical equipment, the requirements on the production capacity (unit capacity, working speed and the like) of various mechanical equipment are higher and higher, particularly the requirements on a roll shaft of a hollow roll shaft are higher and higher, the length of the roll shaft is required to be continuously lengthened, the linear velocity is required to be higher and higher, the bearable linear pressure is continuously increased, and most importantly, the precision of a workpiece (particularly a shaft head) is required to be improved, and the concentricity of the whole shaft head is ensured.

The conventional method for turning and grinding a workpiece (including a spindle head, a roller body spigot stop, a thread stop, a spindle head transmission stop, a taper bearing stop and the like) comprises the steps of (1) turning by using a common lathe or a numerical control lathe, wherein the common lathe is manually adjusted in angle through a carriage tool rest, the precision and the grinding difficulty of the taper bearing stop are difficult to guarantee, the numerical control lathe is linked by using a numerical control Z, X spindle (the taper turning of the taper bearing stop by a diagonal line), the grinding of the spindle head workpiece can not be realized although the simple integral turning of the spindle head workpiece can be realized, the roughness of the joint of the spindle head taper bearing stop surface and the bearing can not reach the requirement for both the common bed and the numerical control lathe, (2) grinding and machining of the spindle head or the taper bearing stop are required, the spindle head grinding needs to be turned to a next spindle head grinder, the following problems exist, the common bed and the numerical control lathe need to try to place the workpiece in a method of setting the workpiece in the taper of the spindle head taper bearing, the common grinder needs to set the balance of the workpiece relative diameter surface and the workpiece, the workpiece to be set up the workpiece, the spindle head, the size of the spindle head is needed to be adjusted, the spindle head grinding machine needs to be adjusted, the size of the spindle head, the spindle head is needed to be adjusted, the spindle head grinding machine, the spindle head is needed to be adjusted, the spindle head is needed to be adjusted, the size of the spindle head grinding machine, the spindle head is needed to be adjusted, the spindle head is adjusted, the spindle head is.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a turning and grinding integrated machine tool, which has the advantages that the machine tool structure integrating a lathe and a grinding machine into a whole is realized, and the high working efficiency of the lathe, the high precision of the grinding machine and the long service life of the grinding machine are realized.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

a turning and grinding integrated machine tool comprises a first machine body, a second machine body, a headstock, a tool rest assembly, a grinding head assembly and a tailstock center device; a machine tool spindle is arranged in the headstock; the method is characterized in that: the machine tool further comprises a third machine body, a side tool rest seat, a side grinding rest seat, a side tool rest, a side grinding rest, an open center rest, a closed center rest, a side tool radial feeding fine adjustment mechanism, a side grinding radial feeding fine adjustment mechanism, an X-axis workpiece axial feeding mechanism, a Z1 axial side tool radial feeding mechanism and a Z2 axial grinding radial feeding mechanism; the side tool rest seat and the side grinding rest seat are respectively and fixedly arranged on two sides of the first lathe bed; the side tool rest is arranged on the side tool rest seat; the side grinding frame is arranged on the side grinding frame seat; the tool rest assembly is arranged on the side tool rest; the grinding head assembly is arranged on the side grinding frame; the headstock, the open center frame, the closed center frame and the tailstock center device are all arranged on a third lathe bed; the third lathe bed is arranged on the second lathe bed; the second bed body is installed on the first bed body.

Preferably: and the third lathe bed is arranged on the second lathe bed through a positioning pin and a taper position changing mechanism.

The invention has the beneficial effects that: the machine tool structure can control the play amount of a workpiece and ensure a large joint surface for assembling the bearing and the taper bearing stop, greatly prolongs the service life of the bearing and is convenient to disassemble.

The functions of the lathe and the grinding machine are integrated in an integral machine tool structure, so that the concentricity of the shaft head, the bearing block, the bearing transmission head and the like and the spigot block of the roller body during integral turning and grinding is ensured, the concentricity of each workpiece is ensured, the working strength is greatly reduced, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic left-view structural diagram of the present invention;

fig. 3 is a schematic top view of the present invention.

Detailed Description

The structure and embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1-3, the present invention is a schematic structural diagram of a turning and grinding integrated machine tool, and specifically is a schematic structural diagram of a turning and grinding integrated machine tool, and as seen in the accompanying drawings, the turning and grinding integrated machine tool of the present invention includes a first machine bed 1, a second machine bed 2, a third machine bed 3, a headstock 4, a side tool rest base 5, a side tool rest base 6, a side tool rest 7, a side tool rest 8, a tool rest assembly 9, a grinding head assembly 10, a tailstock center device 11, a closed center rest 12, an open center rest 13, a side tool radial feed fine adjustment mechanism 14, a side tool radial feed fine adjustment mechanism 15, an X-axis workpiece axial feed mechanism 18, a Z1 axial tool radial feed mechanism 19, and a Z2 axial grinding radial feed mechanism 20; a machine tool spindle is arranged in the headstock 4; the side tool rest seat 5 and the side grinding rest seat 6 are respectively and fixedly arranged on two sides of the first lathe bed 1; the side tool rest 7 and the side grinding frame 8 are respectively arranged on the side tool rest seat 5 and the side grinding frame seat 6; the tool rest assembly 9 and the grinding head assembly 10 are respectively arranged on the side tool rest 7 and the side grinding frame 8; the headstock 4, the closed center frame 12, the open center frame 13 and the tailstock center device 11 are all arranged on the third lathe bed 3; the third lathe bed 3 is arranged on the second lathe bed 2; the second lathe bed 2 is arranged on the first lathe bed 1.

The preferred improved structure is as follows: the third lathe bed 3 is arranged on the second lathe bed 2 through a positioning pin 16 and a taper deflection mechanism 21.

The working principle is as follows: during operation, the second bed body 2 is mounted on the first bed body 1 of the main bed body through a linear guide rail, and the third bed body 3, the headstock 4, the closed center rest 12, the open center rest 13 and the tailstock center device 11 and the workpiece 17 perform turning and grinding axial movement together through the X-axis workpiece axial feeding mechanism 18.

One end of the third lathe bed 3 is relatively positioned on the second lathe bed 2 through a positioning pin 16, the other end of the third lathe bed 3 can perform reciprocating displacement in the Z direction (namely the horizontal direction) through a taper displacement mechanism 21, so that an included angle is formed between the axis of the third lathe bed 3 and the axis of the second lathe bed 2, and after the third lathe bed 3 is displaced to a required position, an additional pressing plate enables the third lathe bed 3 to be fixed on a corresponding position point of the second lathe bed 2.

The side cutter radial feed fine adjustment mechanism 14 is used for quickly and finely adjusting the cutter and finely modifying the control quantity of the turning diameter of the workpiece 17. The side grinding radial feed fine adjustment mechanism 15 is used for controlling the quick operation of the grinding fine advance and fine retreat of the workpiece 17 in the grinding work.

When the numerical control machining device works, the Z1 axial side cutter radial feeding mechanism 19 and the side cutter rest 7 are used by matching with the side cutter radial feeding fine adjustment mechanism 14 and the cutter rest assembly 9, when the machining is started, firstly, a workpiece 17 is clamped, then, after the side cutter rest 7 is installed with a cutter, the Z1 axial position system can be set to have an absolute value of 0 through fine adjustment of the cutter (the control quantity of the radial cutter absorption of the workpiece), the complicated conversion of input data of the machining system is omitted, the radial instruction programming input of each gear of the whole workpiece is greatly simplified, meanwhile, the control precision of the side cutter radial feeding fine adjustment mechanism 14 is easier, and the numerical control machining device is particularly suitable for numerical control machining control of non-large-batch (or single) workpieces.

When the Z2-axis grinding radial feed mechanism 20 and the side grinding frame 8 are in operation, the side grinding radial feed fine adjustment mechanism 15 and the grinding head assembly 10 are carried, and when grinding is started, the grinding amount (the radial direction of the workpiece) during grinding and the final grinding value are controlled in real time according to the real-time grinding condition of the workpiece 17.

The turning mechanism is arranged on one side of the integrated machine tool, and the grinding mechanism is arranged on the other side of the integrated machine tool, so that turning and grinding are realized for one-time clamping, and accumulated errors caused by secondary clamping are eliminated; the taper is processed by adopting the taper position changing mechanism, so that the turning and grinding work is simple, accurate and reliable; the machine tool changes the taper turning of the workpiece 17 into the linear turning and changes the taper grinding into the linear grinding, so that the processing technology of the workpiece becomes simple, the grinding surface of the grinding wheel is fine, and the grinding precision is high; the gear of the processing workpiece 17 without taper requirement does not need to be displaced, namely, the axis of the third lathe bed 3 is superposed with the axis of the second lathe bed 2 (the machine tool is set after initialization); if a workpiece 17 needs to be turned and ground in a taper gear, namely, according to the taper ratio of the taper to be turned and ground of the workpiece 17, the taper turning and grinding of the workpiece 17 is changed into linear turning and grinding through the taper displacement mechanism 21, so that the axis of the third lathe bed 3 is displaced to be matched with the axis included angle of the second lathe bed 2 and the taper of the workpiece, namely, the conical surface to be turned and ground is parallel to the axis of the second lathe bed 2.

The turning and grinding integrated machine tool changes the linkage mode of the Z axis and the X axis for the numerical control lathe, and has better turning and grinding performance; the concentricity of workpieces (a shaft head, a bearing retainer, a bearing transmission head and the like) and a roller body spigot retainer during integral turning grinding can be ensured, the concentricity of each workpiece can be ensured, the working strength is greatly reduced, the working efficiency is improved, the service life of the workpiece is prolonged, and the structure is simple, compact and convenient for disassembling the workpiece.

It should be understood that the detailed description of the invention is merely illustrative of the invention and is not intended to limit the invention to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims

1. A turning and grinding integrated machine tool comprises a first machine body (1), a second machine body (2), a headstock (4), a tool rest assembly (9), a grinding head assembly (10) and a tailstock center device (11); a machine tool spindle is arranged in the headstock; the method is characterized in that: the grinding machine further comprises a third machine body (3), a side tool rest seat (5), a side grinding rest seat (6), a side tool rest (7), a side grinding rest (8), a closed center frame (12), an open center frame (13), a side tool radial feeding fine adjustment mechanism (14), a side grinding radial feeding fine adjustment mechanism (15), an X-axis workpiece axial feeding mechanism (18), a Z1 axial side tool radial feeding mechanism (19) and a Z2 axial grinding radial feeding mechanism (20); the side tool rest seat (5) and the side grinding rest seat (6) are respectively and fixedly arranged on two sides of the first lathe bed (1); the side tool rest (7) is arranged on the side tool rest seat (5); the side grinding frame (8) is arranged on the side grinding frame seat (6); the tool rest assembly (9) is arranged on the side tool rest (7); the grinding head assembly (10) is arranged on the side grinding frame (8); the headstock (4), the closed center frame (12), the open center frame (13) and the tailstock center device (11) are all arranged on the third lathe bed (3); the third lathe bed (3) is arranged on the second lathe bed (2); the second lathe bed (2) is arranged on the first lathe bed (1).

2. The turning and grinding integrated machine tool according to claim 1, characterized in that: the third lathe bed (3) is arranged on the second lathe bed (2) through a positioning pin (16) and a taper deflection mechanism (21).