CN112318326A

CN112318326A - Small-size processing grinding machine

Info

Publication number: CN112318326A
Application number: CN202011218578.6A
Authority: CN
Inventors: 陈虎; 贺行健; 宫兴林; 任志辉; 陈玉峰; 李耀东; 刘静文; 汤洪涛
Original assignee: Dalian Kede Numerical Control Co Ltd
Current assignee: Dalian Kede Numerical Control Co Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-02-05

Abstract

The invention provides a small-sized processing grinding machine: the device comprises a base, an upright column in the Y-axis direction, a ram, a main shaft structure, a machining main shaft in the C-axis direction, a cross sliding table in the Z-axis direction and the X-axis direction, a workpiece main shaft mounting table, a workpiece main shaft in the A-axis direction and a workpiece library; because the processing main shaft passes through main shaft structure and installs on the ram, and the processing main shaft can be in the horizontal plane perpendicular with Y axle direction swing, be equipped with the cross slip table that is used for installing the work piece on the base, when processing the work piece, accessible ram keeps the main shaft motionless after driving the specific position, or carries out very little up-and-down motion, realize the processing to the work piece, the main shaft can avoid the motion to interfere simultaneously, because the processing main shaft does not need reciprocal up-and-down motion, reduce the wearing and tearing to the drive screw who is used for driving the ram motion, and simultaneously, the motion of cross slip table and the small-angle swing of processing main shaft, have less inertia, control accuracy is high, and machining efficiency improves.

Description

Small-size processing grinding machine

Technical Field

The invention relates to the technical field of machine tools, in particular to a small machining grinder.

Background

The traditional grinding machine is used for processing small workpieces such as cutters and the like and has the following defects: the integral cutter is mainly used for realizing processing and manufacturing by grinding a bar through a grinding wheel. During grinding, the relative position relationship between the main shaft and the vertical column of the lathe bed has direct influence on the swing angle of the main shaft. In the traditional structure, if the main shaft is far away from the upright post, the rigidity of the main shaft is reduced; if the main shaft is closer to the upright column, the main shaft needs to avoid motion interference, and further the swing angle is reduced. When the point of the tool nose is close to the rotation center of the machining axis, the constraint relationship is more severe.

Disclosure of Invention

The invention provides a small-sized processing grinding machine, which solves the problems that a ram driving screw rod is easy to wear, the processing efficiency is low and the processing precision is not high when a small-sized workpiece such as a cutter and the like is processed by the existing grinding machine.

The technical means adopted by the invention are as follows:

a small form factor machine grinder comprising:

the device comprises a base, an upright column in the Y-axis direction, a ram, a main shaft structure, a machining main shaft in the C-axis direction, a cross sliding table in the Z-axis direction and the X-axis direction, a workpiece main shaft mounting table, a workpiece main shaft in the A-axis direction and a workpiece library;

the upright post is arranged on the base, a guide rail is arranged on the upright post, and the ram is arranged on the guide rail and moves along the Y-axis direction; one end of the main shaft structure is fixedly connected with the ram, the other end of the main shaft structure is fixedly connected with the processing main shaft, and the processing main shaft is positioned on one side of the end face of the upright post, which is provided with the guide rail, and can swing in a horizontal plane vertical to the Y-axis direction;

the cross sliding table is positioned on one side of the end face of the upright post, which is provided with the guide rail, and is positioned below the processing main shaft;

the workpiece library is positioned at one end of the X-axis of the cross sliding table close to the upright post and at one side of the end surface of the upright post, which is provided with the guide rail;

the workpiece spindle mounting table comprises a first fixing table, a first sliding table and a first sliding table driving device;

the first fixing table is installed on the cross sliding table, one end, close to the workpiece library, of the first fixing table is provided with the workpiece main shaft, the first fixing table is provided with the first sliding table and a first sliding table driving device, and the first sliding table driving device can drive the first sliding table to slide along the X-axis direction on the first fixing table.

Further, the spindle structure includes:

the B shaft mounting body, the B shaft and the main shaft mounting body;

the B-axis mounting body comprises a ram connecting part, a supporting part and a B-axis mounting part, the ram connecting part is fixedly connected with the ram, one end of the supporting part is fixed on the ram connecting part, the other end of the supporting part is positioned on one side of the end face of the upright post, which is provided with the guide rail, and is provided with the B-axis mounting part;

the main shaft installation body comprises a shaft B connecting part and a main shaft installation part, the shaft B connecting part is fixedly connected with the shaft B, and the main shaft installation part is fixedly provided with the machining main shaft so that a working area of the machining main shaft is located below the shaft B.

Further, an extension line of the B-axis is orthogonal to an extension line of the machining spindle axis at a point.

Further, an extension line of the axis of the B shaft is positioned on the end face of the nose end of the machining main shaft.

Further, the workpiece storage device further comprises a manipulator, and the manipulator is fixedly connected with the side face, facing the workpiece storage, of the upright column.

Furthermore, the grinding wheel dresser is fixed on one side of the workpiece spindle mounting table.

Further, the base is rectangular;

the stand with be equipped with the guide rail the relative one side of terminal surface with the stand is kept away from the contained angle that corresponds of one side of cross slip table with the base angle coincidence.

Furthermore, the Z-axis sliding table of the cross sliding table is arranged on the upper side of the X-axis sliding table.

Further, the supporting part with the width of being connected of ram connecting portion is less than the width of ram connecting portion, just the supporting part is fixed in the one end that ram connecting portion are close to cross slip table.

The invention discloses a small-sized processing grinder, because the processing main shaft is arranged on a ram through a main shaft structure and is positioned at one side of the end surface of an upright post provided with a guide rail, and the processing main shaft can swing in a horizontal plane vertical to the Y-axis direction, the base is provided with a cross sliding table for mounting a workpiece, when a machine tool with the structure is used for processing the workpiece, the main shaft can be driven to a specific position through the ram and then keep the upper and lower positions unchanged or carry out a small amount of up-and-down motion, and the workpiece can be driven to move in the horizontal plane through the swinging of the processing main shaft and the cross sliding table, so as to realize the processing of the workpiece, meanwhile, the main shaft can avoid the motion interference, as the processing main shaft does not need the reciprocating up-and-down motion, the abrasion to a driving screw rod for driving the ram to move is reduced, meanwhile, the motion, the control precision is high, and the machining efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an isometric view of a small form-factor machining grinder of the present disclosure;

FIG. 2 is a front view of the small form factor grinding machine of the present disclosure;

FIG. 3 is a left side view of the small form factor grinding machine of the present disclosure;

FIG. 4 is a right side view of the small form factor grinding machine of the present disclosure;

FIG. 5 is a top view of the small form factor grinding machine of the present disclosure;

FIG. 6 is a front view of the machining spindle of the small grinding machine of the present disclosure;

fig. 7 is an isometric view of a machining spindle of the small-sized machining grinder disclosed in the present invention.

Fig. 8 is an isometric view of a workpiece spindle mounting table of a small form factor grinding machine of the present disclosure.

The reference numbers illustrate:

1. the device comprises a base, 2, a stand column, 20, a guide rail, 21, a ram, 3, a main shaft structure, 30, a B shaft installation body, 31, a main shaft installation body, 32, a B shaft, 300, a ram connecting part, 301, a supporting part, 302, a B shaft installation part, 310, a B shaft connecting part, 311, a main shaft installation part, 4, a machining main shaft, 5, a cross sliding table, 6, a workpiece main shaft, 60, a workpiece main shaft installation table, 61, a first fixing table, 62, a first sliding table, 63, a first trimmer driving device, 7, a workpiece library, 8, a grinding wheel, 9 and a manipulator.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 8, the small-sized processing grinder disclosed by the present invention includes:

the device comprises a base 1, an upright post 2 in the Y-axis direction, a ram 21, a main shaft structure 3, a machining main shaft 4 in the C-axis direction, a cross sliding table 5 in the Z-axis and X-axis directions, a workpiece main shaft mounting table 60, a workpiece main shaft 6 in the A-axis direction and a workpiece library 7;

the upright post 2 is arranged on the base 1, a guide rail 20 is arranged on the upright post 2, and the ram 21 is arranged on the guide rail 20 and moves along the Y-axis direction; one end of the main shaft structure 3 is fixedly connected with the ram 21, the other end of the main shaft structure is fixedly connected with the processing main shaft 4, and the processing main shaft 4 is positioned on one side of the end face of the upright post 2 provided with the guide rail 20 and can swing in a horizontal plane vertical to the Y-axis direction;

the cross sliding table 5 is positioned on one side of the end face of the upright post 2 provided with the guide rail 20 and is positioned below the processing main shaft 4; in this embodiment, the X axle slip table setting of cross slip table is at Z axle slip table upside.

The workpiece library 7 is positioned at one end of an X-axis sliding table of the cross sliding table 5 close to the upright post 2 and at one side of the end face of the upright post 2 provided with the guide rail 20;

the workpiece spindle mounting table 60 includes a first fixing table 61, a first slide table 62, and a first slide table driving device 63;

first fixed station 61 is installed on cross slip table 5, first fixed station 61 is close to the one end of work piece storehouse 7 is equipped with work piece main shaft 6, be equipped with on first fixed station 61 first slip table 62 with first slip table drive arrangement 63, first slip table drive arrangement 63 can be for devices such as pneumatic cylinder or lead screw drive arrangement in order to drive first slip table 62 is in slide along the X axle direction on the first fixed station 61, can set up top or support frame isotructure on the first slip table for when guaranteeing to process the work piece, the work piece both ends all have the support, improve the machining precision.

According to the invention, the processing spindle is positioned on one side of the end face of the upright post 2 provided with the guide rail 20 through the B-axis mounting body, the B-axis and the spindle mounting body, so that the space below the spindle structure is increased, the movement space of the processing spindle is improved, and the rotation of the B-axis can drive the processing spindle to swing in a horizontal plane vertical to the Y-axis direction.

Further, the spindle structure includes:

a B-axis mounting body 30, a B-axis 32, and a main shaft mounting body 31;

the B-axis mounting body 30 comprises a ram connecting part 300, a supporting part 301 and a B-axis mounting part 302, the ram connecting part 300 is fixedly connected with the ram 21, one end of the supporting part 301 is fixed on the ram connecting part 300, the other end of the supporting part 301 is positioned on one side of the end face of the upright post 2 provided with the guide rail 20 and is provided with the B-axis mounting part 302, and the B-axis 32 is arranged on the B-axis mounting part 302;

the main shaft installation body 31 comprises a shaft B connection part 310 and a main shaft installation part 311, the shaft B connection part 310 is fixedly connected with the shaft B32, and the main shaft installation part 311 is fixedly provided with the machining main shaft 4 so that the working area of the machining main shaft 4 is located below the shaft B32. According to the invention, the processing spindle is positioned on one side of the end face of the upright post 2 provided with the guide rail 20 through the B-axis mounting body, the B-axis and the spindle mounting body, and the B-axis can drive the processing spindle to swing in a horizontal plane vertical to the Y-axis direction, so that the interference between the processing spindle and the upright post when the processing spindle swings in the horizontal plane can be eliminated, the whole space is effectively utilized, the compact structure of the grinding machine is ensured, the space utilization rate is improved, meanwhile, the distance between the axis of the processing spindle and the end face of the guide rail is reduced, the rigidity between the processing spindle and the ram is ensured, and the dynamic performance of the machine tool is improved.

Further, an extension line of the axis of the B-axis 32 and an extension line of the axis of the machining spindle 4 are orthogonal to each other at a point. In this application, the extension line of processing main shaft and the extension line quadrature of B axle are in a bit for the nose of processing main shaft is close to the rotation center, has reduced the swing distance of processing main shaft, and then has reduced the calculated amount of processing main shaft during operation, the machining efficiency of improvement. Meanwhile, the nose end of the processing main shaft is close to the axis of the B shaft, so that the error of the B shaft driving the processing main shaft during working is reduced, and the processing precision is improved.

Further, an extension line of the axis of the B-shaft 32 is located on the nose end face of the machining spindle 4. Namely, the rotation center of the processing main shaft in the horizontal plane is superposed with the axis of the B shaft, so that the calculated amount of the processing main shaft is further reduced, and the processing efficiency and the processing precision are improved.

The structure has the advantages of rigidity and avoidance of motion interference in terms of the whole machine tool layout. The cutter point is made to approach the orthogonal point of the rotary axis of the five-axis linkage as much as possible, and the calculation amount of the five-axis linkage interpolation operation is reduced as much as possible. Because the load on the Y axis is large, when small displacement motion or reciprocating motion frequently occurs, the cost required for ensuring the dynamic characteristics and the precision is high (the performance requirements of control, drive, a motor, transmission and the like are higher) compared with other linear axes. For blanks such as cutter bar stocks, the machine tool structure is suitable for machining the cutter bar stocks because the Y-axis does not need to reciprocate frequently. When the machine tool structure is used for machining, five-axis motion interpolation is completed mainly by motion axes with small loads such as an X axis, a Z axis, a B axis, an A axis and the like, and a Y axis mainly participates in a small amount of five-axis motion interpolation such as feed, retracting and the like, so that the machine tool structure can maximize advantages and shorten disadvantages.

Further, the base 1 is rectangular;

the included angle that stand 2 and the relative one side of the terminal surface that is equipped with guide rail 20 and stand 2 keep away from one side correspondence of cross slip table 5 with the base angle coincidence of base 1. The stand is arranged at one corner of the base, so that the space at the front end of the guide rail end face of the stand on the base can be used for arranging the first tool magazine, the workpiece magazine can be arranged on one side of the guide rail end face of the stand, full utilization of all spaces of the base is achieved, and the space utilization rate of a machine tool can be greatly improved. The whole layout structure of the machine tool is compact, the occupied area is reduced, more processing equipment can be arranged in the same workshop area, the production capacity is improved, and the production cost is reduced.

Further, the grinding wheel dresser 8 is fixed on one side of the workpiece spindle mounting table 60, and in the embodiment, the grinding wheel dresser is arranged on one side, close to the upright post, of the workpiece spindle mounting table 60, so that the shape of a cutter (grinding wheel) can be conveniently modified.

Further, supporting part 301 with ram connecting portion 300's connection width is less than ram connecting portion 300's width, just supporting part 301 is fixed in ram connecting portion 300 is close to the one end of cross slip table 5, can increase the space of supporting part below to set up the processing main shaft, avoided producing effectively between processing main shaft and the stand and interfered.

Further, the workpiece storage device further comprises a manipulator 9, wherein the manipulator 9 is installed on the side face, facing the workpiece storage, of the upright post 2, the manipulator can move up and down and rotate on the side face of the upright post, and rapid switching of workpieces can be achieved by arranging the manipulator 9.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A small form factor machine grinder, comprising:

2. The small form factor machine grinder of claim 1, wherein the spindle structure includes:

the B shaft mounting body, the B shaft and the main shaft mounting body;

3. The small-sized machining grinder according to claim 2, wherein an extension line of the axis of the B-axis is orthogonal to an extension line of the axis of the machining spindle at a point.

4. The small-sized machining grinder of claim 3, wherein an extension of the axis of the B-axis is located on a nose end face of the machining spindle.

5. The small form factor machining grinder of any one of claims 1 to 4, further comprising a manipulator fixedly attached to a side of the column facing the workpiece magazine.

6. The small-scale machining grinding machine according to claim 5, further comprising a wheel dresser fixed to a side of the workpiece spindle mount.

7. The small form factor machine grinder of claim 1, wherein the base is rectangular;

8. The small-sized machining grinder according to claim 1, wherein the Z-axis slide table of the cross slide table is disposed on an upper side of the X-axis slide table.

9. The small-sized machining grinder according to claim 2, wherein the connection width of the support portion and the ram connecting portion is smaller than the width of the ram connecting portion, and the support portion is fixed to one end of the ram connecting portion close to the cross slide table.