CN101066580A

CN101066580A - Plain grinding machine

Info

Publication number: CN101066580A
Application number: CN 200710015891
Authority: CN
Inventors: 张磊; 葛培琪
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2007-06-14
Filing date: 2007-06-14
Publication date: 2007-11-07
Anticipated expiration: 2027-06-14
Also published as: CN100488718C

Abstract

The present invention discloses one kind of plain grinding machine capable of grinding both plate and shaft and with widened application range. Structurally, the plain grinding machine includes one grinding machine body, one workbench capable of moving in X-direction, two racks set on the workbench, one fixture set on the racks for longitudinal motion for installing shaft workpiece and connected via a driving set to the power set, and one grinding set capable of moving in both Y-direction and Z-direction set over the shaft workpiece.

Description

Plain grinding machine

Technical field

The present invention relates to a kind of surface grinding machine, relate in particular to a kind of plain grinding machine.

Background technology

Grinding generally as the final process technology of precision workpiece moulding, can make precision workpiece obtain needed dimensional accuracy and surface smoothness by grinding.In grinding technique, different at flat-type and workpiece profile such as axle class etc., adopt the method for flat surface grinding and cylindricalo grinding respectively, need on surface grinding machine and cylindrical grinder, to process respectively, at present also do not have suitable grinding technique to process flat-type and shaft-like workpiece simultaneously on a kind of grinding machine, the range of work that this has just limited grinding machine has increased the grinding machine acquisition cost, strengthen the production expenses of enterprises, reduced the market competitiveness of enterprise.

In common plane grinding and cylindricalo grinding process, the contact area of emery wheel and surface of the work is big, produces a large amount of grinding heats, if untimely cooling can make the temperature of workpiece surface sharply raise, produces the fire damage layer, reduces the workpiece surface quality.Therefore, all apply a large amount of grinding fluids in the grinding process, and the recovery of grinding fluid and processing also are difficult problems that needs solution.

Summary of the invention

Purpose of the present invention is exactly can carry out the equipment that flat-type and shaft-like workpiece are processed in order to solve to lack at present on a grinding machine, cause the range of work of grinding machine little, problems such as enterprise's production cost height, provide a kind of have simple in structure, easy to use, can utilize surface grinding machine that shaft-like workpiece is carried out cylindricalo grinding, thereby widen the plain grinding machine of the advantages such as range of application of surface grinding machine.

For achieving the above object, the present invention adopts following technical scheme:

A kind of plain grinding machine, it comprises that the x that is installed on the grinding machine body is to the workbench that moves, described workbench is provided with the support of two position correspondences, the clamping device that vertically moves is installed on support, this device connects with power set by transmission device, shaft-like workpiece is installed on the clamping device, above shaft-like workpiece, be provided with along y to z to the grinding attachment that moves.

Described clamping device comprises screw rod that each support one side is provided with and the hold-down nut that cooperates with screw rod, on the top of a screw rod bearing is installed, and the side of bearing is by stent support; Clamp mechanism is installed on the top of another screw rod, clamp mechanism connects with bearing, be provided with thimble horizontal positioned, that freely rotate in the inboard of each bearing, two thimbles match with the centre bore of shaft-like workpiece end face, and drive the shaft-like workpiece rotation, and one of them thimble connects with transmission device, and another thimble connects with corresponding clamp mechanism, the clamp mechanism side is supported by respective holder, and clamp mechanism also drives bearing and thimble horizontal movement simultaneously.

Described transmission device is the Hooks coupling universal coupling transmission mechanism, and it connects with power set; Power set are motor, and it is installed on the workbench.

Described Hooks coupling universal coupling transmission mechanism connects by shaft coupling and the thimble that passes bearing are terminal, and bearing bottom pedestal is provided with shrinkage pool, and screw-bearing is installed in the shrinkage pool, and the top of screw rod connects with screw-bearing.

Described clamp mechanism comprises the carriage release lever of a level, and the longitudinal register piece, and the carriage release lever level is passed the longitudinal register piece, be thread connection between the two, bottom at locating piece is provided with shrinkage pool, and screw-bearing is installed in the shrinkage pool, and the top of screw rod connects with screw-bearing; Outboard end at carriage release lever is provided with handle, and medial extremity connects with the bearing seat of bearing, and thimble connects with bearing.

Described grinding attachment is an emery wheel, and the outer surface of its outer rim and shaft-like workpiece keeps in touch.

The diameter range of described shaft-like workpiece is less than 2 times of pitch of enters, and rotating speed is 1000-3000r/min; The rotating speed of emery wheel is 500-3000r/min, is 0.002mm-0.1mm along the each feeding distance scope of z axle; Workbench is 0.01-20m/min along x direction of principal axis movement velocity.

The present invention is with the thimble clamping of shaft-like workpiece by anchor clamps, be fixed on the workbench, with working table movement, utilize the Hooks coupling universal coupling transmission mechanism to give thimble with the transmission of power of motor, thimble drives shaft-like workpiece and rotatablely moves, the outer rim grinding shaft-like workpiece surface of emery wheel, and the grinding track can be a point or a line, the axis of emery wheel and the axis of shaft-like workpiece are not parallel in the space, are a certain angle.

The invention has the beneficial effects as follows: utilize surface grinding machine that axial workpiece is carried out cylindricalo grinding, thereby widen the range of work of surface grinding machine, reduce the acquisition cost of grinding machine.In this novel grinding technique, emery wheel contacts with line with contacting to point contacts of shaft-like workpiece, contact area is little, the heat that produces is few, heat can be lost very soon, and the temperature of workpiece surface is low, and the quality of workpiece surface is improved, therefore can not apply grinding fluid or apply a small amount of grinding fluid in the grinding process, reduce the consumption and the recycling cost of grinding fluid.Because contact area is little, the grinding force of generation is little, under the constant condition of grinding head motor power, can improve the rotating speed of emery wheel, realize the grinding of high speed and ultrahigh speed hard grinding wheel, and then improve the suface processing quality and the working (machining) efficiency of workpiece, have higher economic value and vast market prospect.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is that the A of Fig. 1 is to cutaway view;

Fig. 3 is the cutaway view that the thimble on the left side brackets among Fig. 1, bearing, screw rod and transmission device connect;

Fig. 4 is the cutaway view that the thimble on the support of right side among Fig. 1, bearing, screw rod and clamp mechanism connect.

Wherein, 1. motor, 2. Hooks coupling universal coupling transmission mechanism, 3. support, 4. bearing, 5. thimble, 6. shaft-like workpiece, 7. emery wheel, 8. screw rod, 9. clamp mechanism, 10. workbench, 11. hold-down nuts, 12. shaft coupling, 13. shrinkage pools, 14. screw-bearings, 15. carriage release levers, 16. locating pieces, 17. handles.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing and embodiment.

Among Fig. 1, x is installed to the workbench 10 that moves on the grinding machine body of surface grinding machine, two supports 3 is installed, be separately installed with screw rod 8 and hold-down nut 11 in each support 3 one side at the correspondence position of workbench 10, be threaded engagement between the two, can realize its elevating movement by the rotation of screw rod 8.On the top of a screw rod 8 bearing 4 is installed, is which is provided with the thimble 5 of horizontal positioned, this thimble 5 connects with motor 1 on being installed in workbench 10 by universal shaft coupling device transmission mechanism 2.Clamp mechanism 9 is installed at the top of another screw rod 8, and this mechanism connects with bearing 4, also is provided with the thimble 5 of horizontal positioned on the bearing 4.Two thimbles 5 match with the centre bore of shaft-like workpiece 6 end faces, and can drive shaft-like workpiece 6 rotations.Above shaft-like workpiece 6, be provided with along y to z to the emery wheel 7 that moves, the outer surface of its outer rim and shaft-like workpiece 6 keeps in touch, as shown in Figure 2.

Among Fig. 3, the bottom pedestal of bearing 4 is provided with shrinkage pool 13, and screw-bearing 14 is installed in shrinkage pool 13, and the top of screw rod 8 promptly is installed in the screw-bearing 14, can drive bearing 4 and move up and down with it.The end of thimble 5 passes bearing 4 backs and connects with Hooks coupling universal coupling transmission mechanism 2 by

shaft coupling

12, and 2 motions with motor 1 of Hooks coupling universal coupling transmission mechanism pass to thimble 5, by the rotation of thimble 5, drives shaft-like workpiece 6 and rotates so that processing.

Among Fig. 4, the top of another screw rod 8 connects with clamp mechanism 9.Clamp mechanism 9 comprises the carriage release lever 15 of a horizontal direction and the locating piece 16 of vertical direction, and carriage release lever 15 levels are passed locating piece 16, is thread connection between the two.In the bottom of locating piece 16 shrinkage pool 13 is arranged, screw-bearing 14 is installed in shrinkage pool 13, the top of screw rod 8 promptly is installed in the screw-bearing 14, and it is moved up and down with screw rod 8.The outer end jug 17 of carriage release lever 15 is so that carry out moving of horizontal direction by rotation carriage release lever 15.The other end of carriage release lever 15 then connects with the bearing seat of bearing (4), and thimble 5 connects with bearing 4.

Using method of the present invention is: two supports are put on the horizontal table, and rotary screw by measuring, makes that the pitch of enters on two supports equates, remains on the horizontal line.Adjust the relative position of two supports, enable to put into workpiece, and the line at thimble center is parallel with the x direction of principal axis of horizontal table.The diameter range of shaft-like workpiece can not exceed 2 times of pitch of enters distance, and two end faces at shaft-like workpiece process centre bore in advance, with the central aperture thimble of shaft-like workpiece, rotates clamp mechanism, makes thimble move, and clamps shaft-like workpiece.Emery wheel moves along y axle and z axle, and the outer rim of emery wheel is contacted with the outer surface of shaft-like workpiece.The power of motor passes to thimble by the Hooks coupling universal coupling transmission mechanism, drives shaft-like workpiece and rotates, and rotating speed is 1000-3000r/min, and the rotating speed of emery wheel is 500-3000r/min.Workbench is along x direction of principal axis rapid movement, and speed is 0.01-20m/min, and emery wheel is along the feed motion of z axle, and each feeding distance scope is 0.002mm-0.1mm.

Protection scope of the present invention includes but not limited to the foregoing description, and every employing technical conceive of the present invention utilizes the adjustment of various known technologies to technical solution of the present invention, all within protection scope of the present invention.

Claims

1, a kind of plain grinding machine, it comprises that the x that is installed on the grinding machine body is to the workbench (10) that moves, it is characterized in that: described workbench (10) is provided with the support (3) of two position correspondences, go up the clamping device that installation vertically moves at support (3), this device connects with power set by transmission device, shaft-like workpiece (6) is installed on the clamping device, be provided with in shaft-like workpiece (6) top along y to z to the grinding attachment that moves.

2, plain grinding machine according to claim 1, it is characterized in that: described clamping device comprises screw rod (8) that each support (3) one side is provided with and the hold-down nut (11) that cooperates with screw rod (8), bearing (4) is installed on top at a screw rod (8), and the side of bearing (4) is supported by support (3); Clamp mechanism (9) is installed on the top of another screw rod (8), clamp mechanism connects with bearing (4), be provided with thimble horizontal positioned, that freely rotate (5) in the inboard of each bearing (4), two thimbles (5) match with the centre bore of shaft-like workpiece (6) end face, and drive shaft-like workpiece (6) rotates, one of them thimble (5) connects with transmission device, another thimble (5) connects with corresponding clamp mechanism (9), clamp mechanism (9) side is supported by respective holder (3), and clamp mechanism also drives bearing (4) and thimble (5) horizontal movement simultaneously.

3, plain grinding machine according to claim 1 and 2 is characterized in that: described transmission device is Hooks coupling universal coupling transmission mechanism (2), and it connects with power set; Power set are motor (1), and it is installed on the workbench (10).

4, plain grinding machine according to claim 3, it is characterized in that: described Hooks coupling universal coupling transmission mechanism (2) connects by shaft coupling (12) and the thimble that passes bearing (4) (5) are terminal, bearing (4) bottom pedestal is provided with shrinkage pool (13), screw-bearing (14) is installed in the shrinkage pool (13), and the top of screw rod (8) connects with screw-bearing (14).

5, plain grinding machine according to claim 2, it is characterized in that: described clamp mechanism comprises the carriage release lever (15) of a level, and longitudinal register piece (16), carriage release lever (15) level is passed longitudinal register piece (16), be thread connection between the two, be provided with shrinkage pool (13) in the bottom of locating piece (16), screw-bearing (14) is installed in the shrinkage pool (13), and the top of screw rod (8) connects with screw-bearing (14); Outboard end at carriage release lever (15) is provided with handle (17), and medial extremity connects with the bearing seat of bearing (4), and thimble (5) connects with bearing (4).

6, plain grinding machine according to claim 1 is characterized in that: described grinding attachment is emery wheel (7), and the outer surface of its outer rim and shaft-like workpiece (6) keeps in touch.

7, according to claim 1 or 2 or 6 described plain grinding machines, it is characterized in that: the diameter range of described shaft-like workpiece (6) is less than 2 times of thimble (5) height, and rotating speed is 1000-3000r/min; The rotating speed of emery wheel (7) is 500-3000r/min, is 0.002mm-0.1mm along the each feeding distance scope of z axle; Workbench (10) is 0.01-20m/min along x direction of principal axis movement velocity.