CN110625152B

CN110625152B - Precision machine tool flexible to operate

Info

Publication number: CN110625152B
Application number: CN201910884852.4A
Authority: CN
Inventors: 韩平
Original assignee: Zhejiang Hexin Cnc Machine Tool Co ltd
Current assignee: ZHEJIANG HEXIN CNC MACHINE TOOL Co.,Ltd.
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-12-08
Anticipated expiration: 2039-09-19
Also published as: CN110625152A

Abstract

The invention relates to a flexible-operation precise machine tool which comprises a bottom plate, a workbench, a lifting device, a driving motor, a connecting box, a drill rod, a shielding mechanism and three fixing mechanisms, wherein the shielding mechanism comprises a lifting assembly and four shielding assemblies, each shielding assembly comprises a connecting rod, a shielding plate and a limiting unit, and each fixing mechanism comprises a supporting shaft, a fixing rod, a swinging rod, a pull plate, a spring and a supporting rod.

Description

Precision machine tool flexible to operate

Technical Field

The invention relates to the field of precision machine tools, in particular to a precision machine tool with flexible operation.

Background

The drilling machine is a machine tool which mainly uses a drill to machine a hole on a workpiece. Typically the drill bit is rotated into a primary motion and the drill bit is moved axially into a feed motion. The drilling machine is simple in structure, relatively low in machining precision, capable of drilling through holes and blind holes, replacing special cutters, and capable of expanding, reaming or tapping and the like. In the machining process, the workpiece is fixed, the cutter moves, the center of the cutter is aligned with the center of the hole, and the cutter rotates (main motion). The drilling machine is characterized in that a workpiece is fixed and a cutter does rotary motion.

Current drilling machine can produce more piece when processing the work piece, because telling of drill bit is rotatory, can lead to the piece to splash, the existence condition that splashes on one's body the user takes place, causes the threat for user's personal safety, has reduced the security, moreover, current drilling machine is when changing the drilling rod, and the process is loaded down with trivial details, wastes time and energy, has reduced the convenience of changing the drilling rod, greatly reduced the practicality of current drilling machine.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, a precision machine tool with flexible operation is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a precision machine tool flexible in operation comprises a bottom plate, a workbench, a lifting device, a driving motor, a connecting box, a drill rod, a shielding mechanism and three fixing mechanisms, wherein the workbench and the lifting device are arranged above the bottom plate, the lifting device is connected with the driving motor, the driving motor is in transmission connection with the connecting box, the fixing mechanisms are arranged inside the connecting box, the drill rod is arranged below the connecting box, three first notches are formed in one end, close to the connecting box, of the drill rod, the first notches are circumferentially and uniformly distributed on the drill rod, the fixing mechanisms correspond to the first notches one to one, the drill rod is connected with the connecting box through the fixing mechanisms, the shielding mechanism is arranged inside the workbench, an operating plate is arranged on the workbench, and a PLC is arranged in the operating plate;

the shielding mechanism comprises a lifting component and four shielding components, the four shielding components are respectively arranged on four sides of the lifting component, four openings are arranged above the workbench, the openings correspond to the shielding components one by one, and the lifting component is connected with the shielding components;

the shielding assembly comprises a connecting rod, a shielding plate and a limiting unit, one end of the connecting rod is connected with the lifting assembly, the other end of the connecting rod is fixedly connected with the shielding plate, the shielding plate is vertically arranged inside the workbench, the top end of the shielding plate penetrates through the opening, the shielding plate is matched with the opening, and the bottom end of the shielding plate is connected with the bottom inside the workbench through the limiting unit;

the fixing mechanism comprises a supporting shaft, a fixing rod, a swinging rod, a pull plate, a spring and a support rod, one end of the supporting shaft is fixedly connected with the inner wall of the connecting box, the other end of the supporting shaft is hinged with one end of the swinging rod, a through hole is arranged below the connecting box and corresponds to the fixing mechanism one by one, the other end of the swinging rod penetrates through the through hole and is arranged below the connecting box, the other end of the swinging rod is fixedly connected with one end of the fixing rod, the other end of the fixing rod is arranged inside the first notch, a strip-shaped opening is arranged on the swinging rod, one end of the support rod is fixedly connected with the pull rod, the other end of the support rod penetrates through the strip-shaped opening, the support rod is matched with the strip-shaped opening, three through holes are arranged on the connecting box and correspond to the pull rod one by one, and one, the other end of the pull rod is fixedly connected with the pull plate, the two ends of the spring are respectively connected with the connecting box and the pull plate, and the spring is in a stretching state.

Preferably, in order to limit the moving direction of the pull rod, the fixing mechanism further comprises a guide assembly, the guide assembly comprises a guide block and a slide way, the guide block is fixedly connected with one end, far away from the pull plate, of the pull rod, the slide way is fixed at the bottom in the connecting box, a slide groove is formed in the slide way, the guide block is arranged inside the slide groove and matched with the slide groove, and the guide block is in sliding connection with the slide groove.

Preferably, in order to avoid the guide block from being separated from the slide way, the slide way is a dovetail groove.

Preferably, in order to avoid the separation of the support rod and the swing rod, the fixing mechanism further comprises a limiting plate, and the limiting plate is fixedly connected with one end of the support rod, which is far away from the pull rod.

As preferred, in order to drive the sunshade and remove, lifting unit includes motor, bearing, lead screw and slider, top and bottom in the workstation are fixed respectively to motor and bearing, the motor is connected with the one end transmission of lead screw, the other end of lead screw and the inner circle fixed connection of bearing, the slider cover is established on the lead screw, the slider with the junction of lead screw be equipped with the screw thread that matches with the lead screw, the one end and the slider fixed connection of keeping away from the sunshade of connecting rod, the motor is connected with the PLC electricity.

Preferably, in order to limit the moving direction of the shielding plate, the limiting unit comprises a limiting rod and a sleeve, the sleeve is fixed at the bottom inside the workbench, one end of the limiting rod is fixedly connected with the lower part of the shielding plate, the other end of the limiting rod is arranged inside the sleeve, and the limiting rod is matched with the sleeve.

Preferably, the horizontal cross-sectional shape of the stop rod is square in order to prevent the stop rod from rotating when it moves within the sleeve.

Preferably, in order to facilitate the smooth movement of the limiting rod in the sleeve, a plurality of second notches are formed in the four sides of the limiting rod, balls are arranged in the second notches and matched with the second notches, the spherical centers of the balls are arranged in the second notches, grooves are formed in the four sides of the inner wall of the sleeve, and the balls abut against the inner walls of the grooves.

Preferably, the motor is a servo motor for precise and stable operation of the motor.

Preferably, in order to facilitate the fitting of the fixing lever inside the first recess, an end of the fixing lever remote from the swing lever is shaped like a hemisphere.

The invention has the beneficial effects that the precision machine tool with flexible operation improves the convenience of replacing the drill rod through the fixing mechanism, compared with the existing fixing mechanism, the fixing mechanism improves the convenience of operation, the practicability is high, the shielding mechanism is used for shielding the workpiece to be processed, and the situation that scraps generated in the punching work are splashed onto a user body is avoided, so that the protection effect on the user can be realized, compared with the existing shielding mechanism, the shielding mechanism improves the stability of the shielding plate during moving, and the safety is higher.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a flexible operation precision machine of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a side view of the securing mechanism of the flexible operation precision machine of the present invention;

FIG. 4 is a schematic view of the construction of a stop unit of the flexible operation precision machine of the present invention;

in the figure: 1. the automatic lifting device comprises a base plate, 2 parts of a workbench, 3 parts of a lifting device, 4 parts of a driving motor, 5 parts of a drill rod, 6 parts of a connecting box, 7 parts of a pulling plate, 8 parts of a spring, 9 parts of a pulling rod, 10 parts of a supporting rod, 11 parts of a swinging rod, 12 parts of a fixing rod, 13 parts of a guide block, 14 parts of a slideway, 15 parts of a limiting plate, 16 parts of a motor, 17 parts of a screw rod, 18 parts of a sliding block, 19 parts of a connecting rod, 20 parts of a shielding plate, 21 parts of a limiting rod, 22 parts of a sleeve, 23 parts of.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in figure 1, the precision machine tool with flexible operation comprises a bottom plate 1, a workbench 2, a lifting device 3, a driving motor 4, a connecting box 6, a drill rod 5, a shielding mechanism and three fixing mechanisms, wherein the workbench 2 and the lifting device 3 are both arranged above the bottom plate 1, the lifting device 3 is connected with the driving motor 4, the driving motor 4 is in transmission connection with the connecting box 6, the fixing mechanisms are arranged inside the connecting box 6, the drill rod 5 is arranged below the connecting box 6, one end of the drill rod 5 close to the connecting box 6 is provided with three first notches, the first notches are circumferentially and uniformly distributed on the drill rod 5, the fixing mechanisms are in one-to-one correspondence with the first notches, the drill rod 5 is connected with the connecting box 6 through the fixing mechanisms, the shielding mechanism is arranged inside the workbench 2, the workbench 2 is provided with an operation plate 24, a PLC is arranged in the operating plate 24;

a PLC, i.e., a programmable logic controller, which employs a programmable memory for storing therein a program, executing instructions for user-oriented operations such as logic operation, sequence control, timing, counting, and arithmetic operation, and controlling various types of machines or production processes through digital or analog input/output, is essentially a computer dedicated for industrial control, has a hardware structure substantially the same as that of a microcomputer, and is generally used for data processing and instruction reception and output for realizing central control.

This flexible operation's accurate lathe passes through fixed establishment, has improved the convenience of changing drilling rod 5, through sheltering from the mechanism, treats the processing work piece and shelters from work, and the sweeps that has avoided the during operation that punches to produce splashes on one's body to can play the guard action to the user.

As shown in fig. 1, the shielding mechanism includes a lifting assembly and four shielding assemblies, the four shielding assemblies are respectively disposed on four sides of the lifting assembly, four openings are disposed above the workbench 2, the openings correspond to the shielding assemblies one by one, and the lifting assembly is connected to the shielding assemblies;

the shielding assembly comprises a connecting rod 19, a shielding plate 20 and a limiting unit, one end of the connecting rod 19 is connected with the lifting assembly, the other end of the connecting rod 19 is fixedly connected with the shielding plate 20, the shielding plate 20 is vertically arranged inside the workbench 2, the top end of the shielding plate 20 penetrates through an opening, the shielding plate 20 is matched with the opening, and the bottom end of the shielding plate 20 is connected with the bottom inside the workbench 2 through the limiting unit;

when punching the during operation, control drive assembly work drives sunshade 20 rebound through connecting rod 19 to make sunshade 20 shelter from the work piece of treating processing, the sweeps that the during operation of avoiding punching produced splashes on one's body to the user, thereby can play the guard action to the user, when sunshade 20 removes, drive spacing unit work, the moving direction of sunshade 20 has been restricted, make more stable when sunshade 20 removes, thereby make and shelter from more stable of mechanism during operation.

As shown in fig. 2-3, the fixing mechanism includes a supporting shaft, a fixing rod 12, a swinging rod 11, a pull rod 9, a pulling plate 7, a spring 8 and a support rod 10, one end of the supporting shaft is fixedly connected with the inner wall of the connecting box 6, the other end of the supporting shaft is hinged with one end of the swinging rod 11, a through hole is arranged below the connecting box 6, the through holes correspond to the fixing mechanism one by one, the other end of the swinging rod 11 passes through the through hole and is arranged below the connecting box 6, the other end of the swinging rod 11 is fixedly connected with one end of the fixing rod 12, the other end of the fixing rod 12 is arranged inside the first notch, a strip-shaped opening is arranged on the swinging rod 11, one end of the support rod 10 is fixedly connected with the pull rod 9, the other end of the support rod 10 passes through the strip-shaped opening, the support rod 10 is, the perforation and the pull rod 9 one-to-one correspond, the one end of the pull rod 9 far away from the support rod 10 penetrates through the perforation to be arranged outside the connecting box 6, the other end of the pull rod 9 is fixedly connected with the pull plate 7, two ends of the spring 8 are respectively connected with the connecting box 6 and the pull plate 7, and the spring 8 is in a stretching state.

When the drill rod 5 needs to be replaced, the pressure plate is manually moved, so that the pressure plate moves in the direction away from the connecting box 6, meanwhile, the extension spring 8 drives the swinging rod 11 to move towards the direction far away from the drill rod 5 through the pull rod 9, thereby disengaging the fixing lever 12 from the first recess, so that the fixing lever 12 is no longer embedded inside the first recess, so that the drill rod 5 is no longer fixed, facilitating the user to replace a new drill rod 5, the user will press the new drill rod 5 against the lower side of the connection box 6, so that the drill rod 5 is located between the three fixing rods 12, the pulling plate 7 is then released, the pulling plate 7 is driven to move towards the direction close to the connecting box 6 by the restoring force of the spring 8, the swinging rod 11 is driven to move towards the direction close to the drill rod 5 by the pull rod 9, so that the fixed rod 12 is embedded into the first notch, so that the fixing rod 12 fixes the position of the drill rod 5, thereby improving the convenience of replacing the drill rod 5.

Preferably, in order to limit the moving direction of the pull rod 9, the fixing mechanism further comprises a guide assembly, the guide assembly comprises a guide block 13 and a slide way 14, the guide block 13 is fixedly connected with one end, far away from the pull plate 7, of the pull rod 9, the slide way 14 is fixed at the bottom in the connecting box 6, a slide groove is formed in the slide way 14, the guide block 13 is arranged inside the slide groove, the guide block 13 is matched with the slide groove, and the guide block 13 is slidably connected with the slide groove.

When the pull rod 9 moves, the guide block 13 is driven to move in the slide way 14, so that the moving direction of the pull rod 9 is limited, and the pull rod 9 is more stable when moving.

Preferably, in order to avoid the guide block 13 from being separated from the slide way 14, the slide way is a dovetail groove.

Preferably, in order to avoid the separation of the supporting rod 10 from the oscillating rod 11, the fixing mechanism further comprises a limiting plate 15, and the limiting plate 15 is fixedly connected with one end of the supporting rod 10 far away from the pull rod 9.

By arranging the limiting plate 15, the supporting rod 10 is prevented from being separated from the oscillating rod 11, and the work of the fixing mechanism is prevented from being influenced.

Preferably, in order to drive the shielding plate 20 to move, the lifting assembly comprises a motor 16, a bearing, a screw rod 17 and a sliding block 18, the motor 16 and the bearing are respectively fixed at the top and the bottom of the workbench 2, the motor 16 is in transmission connection with one end of the screw rod 17, the other end of the screw rod 17 is fixedly connected with an inner ring of the bearing, the sliding block 18 is sleeved on the screw rod 17, a connecting part of the sliding block 18 and the screw rod 17 is provided with a thread matched with the screw rod 17, one end of the connecting rod 19, which is far away from the shielding plate 20, is fixedly connected with the sliding block 18, and the motor 16 is electrically connected with the.

When sheltering from the during operation, control motor 16 starts, and lead screw 17 rotates, drives slider 18 and moves on lead screw 17, drives sunshade 20 rebound through connecting rod 19 to make sunshade 20 shelter from the work piece of treating the processing, the sweeps of avoiding punching the during operation to produce splashes on one's body the user, thereby can play the guard action to the user.

As shown in fig. 4, the limiting unit includes a limiting rod 21 and a sleeve 22, the sleeve 22 is fixed at the bottom inside the workbench 2, one end of the limiting rod 21 is fixedly connected with the lower part of the shielding plate 20, the other end of the limiting rod 21 is arranged inside the sleeve 22, and the limiting rod 21 is matched with the sleeve 22.

When the shielding plate 20 moves, the limiting rod 21 is driven to move in the sleeve 22, so that the moving direction of the shielding plate 20 is limited, the shielding plate 20 does not rotate when moving, and the shielding plate 20 is more stable when moving.

Preferably, the horizontal cross-sectional shape of the stopper rod 21 is square so that the stopper rod 21 does not rotate when moving within the sleeve 22.

The horizontal cross section of the limiting rod 21 is square, so that the limiting rod 21 does not rotate when moving in the sleeve 22, and the stability of the limiting rod 21 during moving is improved.

Preferably, in order to facilitate the movement of the limiting rod 21 in the sleeve 22 smoothly, a plurality of second recesses are formed on each of four sides of the limiting rod 21, a ball 23 is disposed in each second recess, the ball 23 is matched with the second recess, a center of the ball 23 is disposed inside the second recess, a groove is formed on each of four sides of an inner wall of the sleeve 22, and the ball 23 abuts against the inner wall of the groove.

Through setting up ball 23, reduced the frictional force when gag lever post 21 removes in sleeve 22 for gag lever post 21 is more smooth when removing along sleeve 22.

Preferably, the motor 16 is a servo motor in order to allow precise and stable operation of the motor 16.

Preferably, in order to facilitate the fixing lever 12 to be fitted into the inside of the first recess, an end of the fixing lever 12 remote from the swing lever 11 is formed in a hemispherical shape.

When carrying out the work of punching, control motor 16 starts, lead screw 17 rotates, it moves on lead screw 17 to drive slider 18, drive sunshade 20 rebound through connecting rod 19, thereby make sunshade 20 shelter from the work piece of treating processing, the sweeps of avoiding punching the during operation to produce splashes on one's body to the user, thereby can play the guard action to the user, when sunshade 20 removes, drive gag lever post 21 and remove in sleeve pipe 22, the moving direction of sunshade 20 has been restricted, do not take place to rotate when making sunshade 20 remove, thereby make more stability when sunshade 20 removes. When the drill rod 5 needs to be replaced, the pressure plate is manually moved, so that the pressure plate moves in the direction away from the connecting box 6, meanwhile, the extension spring 8 drives the swinging rod 11 to move towards the direction far away from the drill rod 5 through the pull rod 9, thereby disengaging the fixing lever 12 from the first recess, so that the fixing lever 12 is no longer embedded inside the first recess, so that the drill rod 5 is no longer fixed, facilitating the user to replace a new drill rod 5, the user will press the new drill rod 5 against the lower side of the connection box 6, so that the drill rod 5 is located between the three fixing rods 12, the pulling plate 7 is then released, the pulling plate 7 is driven to move towards the direction close to the connecting box 6 by the restoring force of the spring 8, the swinging rod 11 is driven to move towards the direction close to the drill rod 5 by the pull rod 9, so that the fixed rod 12 is embedded into the first notch, so that the fixing rod 12 fixes the position of the drill rod 5, thereby improving the convenience of replacing the drill rod 5.

Compared with the prior art, this flexible operation's accurate lathe passes through fixed establishment, has improved the convenience of changing drilling rod 5, compares with current fixed establishment, and this fixed establishment has improved the convenience of operation, and the practicality is high, through sheltering from the mechanism, treats the processing work piece and shelters from work, and the sweeps that has avoided punching the during operation to produce splashes to the user on one's body to can play the guard action to the user, compare with current mechanism of sheltering from, should shelter from the stability when mechanism has improved sunshade 20 and has removed, and the security is higher.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The precision machine tool flexible to operate is characterized by comprising a bottom plate (1), a workbench (2), a lifting device (3), a driving motor (4), a connecting box (6), a drill rod (5), a shielding mechanism and three fixing mechanisms, wherein the workbench (2) and the lifting device (3) are arranged above the bottom plate (1), the lifting device (3) is connected with the driving motor (4), the driving motor (4) is in transmission connection with the connecting box (6), the fixing mechanisms are arranged inside the connecting box (6), the drill rod (5) is arranged below the connecting box (6), three first notches are formed in one end, close to the connecting box (6), of the drill rod (5), the first notches are circumferentially and uniformly distributed on the drill rod (5), the fixing mechanisms correspond to the first notches one to one, the drill rod (5) is connected with the connecting box (6) through the fixing mechanisms, the shielding mechanism is arranged inside the workbench (2), an operation plate (24) is arranged on the workbench (2), and a PLC is arranged in the operation plate (24);

the shielding mechanism comprises a lifting component and four shielding components, the four shielding components are respectively arranged on four sides of the lifting component, four openings are arranged above the workbench (2), the openings correspond to the shielding components one by one, and the lifting component is connected with the shielding components;

the shielding assembly comprises a connecting rod (19), a shielding plate (20) and a limiting unit, one end of the connecting rod (19) is connected with the lifting assembly, the other end of the connecting rod (19) is fixedly connected with the shielding plate (20), the shielding plate (20) is vertically arranged inside the workbench (2), the top end of the shielding plate (20) penetrates through the opening, the shielding plate (20) is matched with the opening, and the bottom end of the shielding plate (20) is connected with the bottom inside the workbench (2) through the limiting unit;

the fixing mechanism comprises a supporting shaft, a fixing rod (12), a swinging rod (11), a pull rod (9), a pull plate (7), a spring (8) and a support rod (10), one end of the supporting shaft is fixedly connected with the inner wall of a connecting box (6), the other end of the supporting shaft is hinged with one end of the swinging rod (11), a through hole is arranged below the connecting box (6), the through hole corresponds to the fixing mechanism one by one, the other end of the swinging rod (11) penetrates through the through hole to be arranged below the connecting box (6), the other end of the swinging rod (11) is fixedly connected with one end of the fixing rod (12), the other end of the fixing rod (12) is arranged inside a first notch, a strip-shaped opening is arranged on the swinging rod (11), one end of the support rod (10) is fixedly connected with the pull rod (9), and the other end of the support rod (10) penetrates through the strip-shaped opening, branch (10) and bar mouth match, be equipped with three perforation on connecting box (6), perforation and pull rod (9) one-to-one, the one end of keeping away from branch (10) of pull rod (9) passes the perforation setting in the outside of connecting box (6), the other end and arm-tie (7) fixed connection of pull rod (9), the both ends of spring (8) are connected with connecting box (6) and arm-tie (7) respectively, spring (8) are in tensile state.

2. The precision machine tool with flexible operation according to claim 1, wherein the fixing mechanism further comprises a guide assembly, the guide assembly comprises a guide block (13) and a slide way (14), the guide block (13) is fixedly connected with one end of the pull rod (9) far away from the pull plate (7), the slide way (14) is fixed at the bottom in the connecting box (6), a slide groove is arranged on the slide way (14), the guide block (13) is arranged in the slide groove, the guide block (13) is matched with the slide groove, and the guide block (13) is slidably connected with the slide groove.

3. The operationally flexible precision machine tool of claim 2, wherein the slide groove is a dovetail groove.

4. Flexible precision machine tool according to claim 1, characterized in that the fixing means further comprise a limit plate (15), the limit plate (15) being fixedly connected to the end of the support rod (10) remote from the tie rod (9).

5. The precision machine tool with flexible operation of claim 1, wherein the lifting assembly comprises a motor (16), a bearing, a screw rod (17) and a slide block (18), the motor (16) and the bearing are respectively fixed at the top and the bottom in the workbench (2), the motor (16) is in transmission connection with one end of the screw rod (17), the other end of the screw rod (17) is fixedly connected with an inner ring of the bearing, the slide block (18) is sleeved on the screw rod (17), a connecting part of the slide block (18) and the screw rod (17) is provided with a thread matched with the screw rod (17), one end of the connecting rod (19) far away from the shielding plate (20) is fixedly connected with the slide block (18), and the motor (16) is electrically connected with the PLC.

6. The precision machine tool with flexible operation according to claim 1, wherein the limiting unit comprises a limiting rod (21) and a sleeve (22), the sleeve (22) is fixed at the bottom in the workbench (2), one end of the limiting rod (21) is fixedly connected with the lower part of the shielding plate (20), the other end of the limiting rod (21) is arranged in the sleeve (22), and the limiting rod (21) is matched with the sleeve (22).

7. Flexible precision machine tool according to claim 6, characterized in that the horizontal cross-section of the limit stop (21) is square.

8. The precision machine tool with flexible operation according to claim 7, wherein the four sides of the limiting rod (21) are provided with a plurality of second notches, the second notches are provided with balls (23), the balls (23) are matched with the second notches, the centers of the balls (23) are arranged inside the second notches, the four sides of the inner wall of the sleeve (22) are provided with grooves, and the balls (23) are abutted with the inner walls of the grooves.

9. Flexible operation precision machine tool according to claim 5, characterized in that the motor (16) is a servo motor.

10. Flexible operation precision machine tool according to claim 1, characterized in that the end of the fixed lever (12) remote from the swing lever (11) is shaped as a hemisphere.