A kind of high precision machine tool clamping device with rectangular jack
Technical field
The utility model relates to a kind of high precision machine tool clamping devices with rectangular jack.
Background technique
Clamping device is the important component of lathe, for clamping workpiece, cutter etc., is allowed to turn with main shaft
It is dynamic, to be processed to workpiece.Existing clamping device has scroll chuck, collet etc., these clamping devices are usual
Suitable for clamping cylindrical object, also needs to be equipped with special tooling when needing to clamping square objects, be more troublesome.
Summary of the invention
The purpose of this utility model is to provide a kind of high precision machine tool clamping dress with rectangular jack regarding to the issue above
It sets, is suitable for clamping square objects.
In order to achieve the above objectives, the utility model includes cylindricality mounting base, it is characterized in that the front end of the cylindricality mounting base
Face is equipped with installation cavity, is equipped with the inner conical surface that diameter is gradually increased from back to front at the opening's edge of installation cavity, installation cavity is provided with can
The gripper sleeve slid back and forth, the front end of gripper sleeve have can opposite four clamping limbs for opening and can be relatively closed, four
The relative inner of a clamping limb is equipped with mounting groove, is equipped with cushion block in mounting groove, and the lateral surface for clamping limb, which is equipped with, to sink
Hole, cushion block are equipped with threaded connection hole, are fitted with fastening bolt in counterbore, the end of fastening bolt is screwed into threaded connection hole
It is interior, male part is equipped on the outside of four clamping limbs, the lateral surface of male part is arcwall face, is closed when four clamping limbs are opposite
The male cone (strobilus masculinus) that diameter from back to front is gradually increased, the front end of cylindricality mounting base is collectively formed in the arcwall face of these male parts when conjunction
Equipped with external screw thread and buckle closure is installed, buckle closure includes cylinder and panel, and panel is equipped with through hole, and panel can make when buckle closure screws in
Gripper sleeve slides backward and keeps four clamping limbs relatively closed using the squeezing action of the external conical surface of inner conical surface.
The usage mode of the high precision machine tool clamping device with rectangular jack is as follows: cylindricality mounting base is mounted on lathe
It goes up and is connected by power it with machine tool chief axis, square cross is inserted into the space between four clamping limbs through through hole,
Buckle closure is screwed, panel, which is pressed against on gripper sleeve, slides backward it relative to cylindricality mounting base, and inner conical surface external cone face has
Squeezing action, to keep four clamping limbs relatively closed, rectangular jack, four pads are collectively formed in the space between four cushion blocks
Block is pressed respectively against on four faces of square cross, realizes the clamping of square shaped workpiece.It can be seen that this has the height of rectangular jack
Precision machine clamping device can realize the clamping of square shaped workpiece, he can be used for clamping the knife with square connector certainly
Tool or other square objects, it is more firm to the clamping of object using four cushion blocks respectively with each face contact of square objects,
The precision of clamping is higher, and mounting groove has position-limiting action to cushion block, and fastening bolt can realize cushion block and clamp the connection of limb, pad
The installation and replacement of block are also more convenient, make the high precision machine tool clamping device with rectangular jack can by replacing cushion block
For clamping the workpiece of different size, application is relatively broad.
The bottom of the installation cavity is equipped with threaded mounting hole, is equipped with guide rod in installation cavity, the rear end of guide rod is equipped with
External screw thread is simultaneously screwed in threaded mounting hole, and the front end of guide rod is inserted into the inner hole of gripper sleeve, is set on guide rod
Reset spring, the both ends of reset spring are acted against respectively on the bottom surface of installation cavity and the rear end face of gripper sleeve.Guide rod and folder
The inner wall of holding sleeve is in contact, and during gripper sleeve slides back and forth, guide rod has the function of guiding, thus can keep
Gripper sleeve central stabilizer, it is more more accurate to the clamping of workpiece, buckle closure can be unscrewed when needing to unload workpiece, reset spring drives
It slides gripper sleeve forwards, is detached from inner conical surface and male cone (strobilus masculinus), four clamping limbs are opposite to be opened, convenient for taking for workpiece
Out.
The rear end of the cylindricality mounting base is connected with the Morse's taper bar that diameter is gradually reduced from front to back.Morse's taper bar
It can cooperate with the associated mechanisms on lathe, convenient for the installation of the high precision machine tool clamping device with rectangular jack.
The front end face of the front end perforation clamping limb of the mounting groove, the rear end of mounting groove are V-arrangement recessed portion, after cushion block
End is equipped with V-arrangement protrusion, and the V-arrangement protrusion of cushion block is inserted into the V-type recessed portion of mounting groove.When cushion block is installed, V-arrangement recessed portion pair
V-arrangement protrusion has positioning action, the threaded connection hole on cushion block can be made to be aligned with the counterbore on clamping limb, convenient for fastening spiral shell
The connection of bolt and threaded connection hole, being installed rear V-arrangement recessed portion has position-limiting action to cushion block, can prevent it from swinging and make tight
Fixing bolt loosens.
The clamping limb front end is equipped with the surface of subsidence lower than its end face close to the position of the conical surface, when four clamping limb phases
When to closure, annular surface is collectively formed in the surface of subsidence on four clamping limbs, and panel is pressed against on annular surface, the front end face of limb
Except through hole on extending panel.After adopting the above structure, expose the front end face of limb, workpiece Shi Keyu is installed
The positioning surface of workpiece is in contact, convenient to position to workpiece.
Multiple handle sockets are equipped on the outer peripheral surface of the buckle closure.It can be inserted into handle at handle socket, facilitate buckle closure
Turn.
In conclusion the utility model may be mounted on lathe, for clamping for square cross, cutter etc., there is folder
Hold advantage effect firm, that clamp precision is high, this have the high precision machine tool clamping device of rectangular jack by gasket more
The workpiece for being adaptable to clamp a variety of different sizes is changed, application range is wider.
Detailed description of the invention
Specific embodiment of the present utility model is further described in detail with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram of an embodiment of the present invention;
Fig. 2 is the right view of gripper sleeve in Fig. 1;
Fig. 3 is that Fig. 2 rotates the structural schematic diagram after 45 degree counterclockwise;
Fig. 4 is the structural schematic diagram in Fig. 3 after line A-A cutting.
Specific embodiment
Referring to attached drawing, in an embodiment of the present invention, the high precision machine tool clamping device with rectangular jack
Including cylindricality mounting base 1, it is characterized in that the front end face of the cylindricality mounting base 1 is equipped with installation cavity 2, at the opening's edge of installation cavity 2
Equipped with the inner conical surface 3 that diameter from back to front is gradually increased, installation cavity 2 is provided with gripper sleeve 4 capable of sliding back and forth, gripper sleeve
4 front end has the four clamping limbs 5 that can be opened relatively and can be relatively closed, and the relative inners of four clamping limbs 5 are all provided with
There is mounting groove 6, cushion block 7 is installed in mounting groove 6, the lateral surface of clamping limb 5 is equipped with counterbore 8, and cushion block 7 connects equipped with screw thread
Hole 9 is connect, fastening bolt 10 is fitted in counterbore 8, the end of fastening bolt 10 is screwed into threaded connection hole 9, four clamping valves
The outside of piece 5 is equipped with male part 11, and the lateral surface of male part 11 is arcwall face, when four clamping limbs 5 are relatively closed this
The male cone (strobilus masculinus) that diameter from back to front is gradually increased is collectively formed in the arcwall face of a little male parts 11, and the front end of cylindricality mounting base 1 is set
There is external screw thread and buckle closure 13 is installed, buckle closure 13 includes cylinder 14 and panel 15, and panel 15 is equipped with through hole 16, and buckle closure 13 revolves
Fashionable panel 15 can be such that gripper sleeve 4 slides backward and make four clamping limbs 5 using the squeezing action of the external conical surface of inner conical surface 3
It is relatively closed.
The usage mode of the high precision machine tool clamping device with rectangular jack is as follows: cylindricality mounting base 1 is mounted on machine
On bed and it is connected by power it with machine tool chief axis, square cross is inserted into the sky between four clamping limbs 5 through through hole 16
In, buckle closure 13 is screwed, panel 15, which is pressed against on gripper sleeve 4, slides backward it relative to cylindricality mounting base 1, inner conical surface 3
External cone face has squeezing action, to keep four clamping limbs 5 relatively closed, the space between four cushion blocks 7 is collectively formed
Rectangular jack, four cushion blocks 7 are pressed respectively against on four faces of square cross, realize the clamping of square shaped workpiece.It can be seen that should
The clamping of square shaped workpiece can be realized with the high precision machine tool clamping device of rectangular jack, he can be used for clamping tool certainly
Have the cutter or other square objects of square connector, using four cushion blocks 7 respectively with each face contact of square objects, to object
The clamping of body is more firm, and the precision of clamping is higher, and mounting groove 6 has position-limiting action to cushion block 7, and fastening bolt 10 can realize pad
The connection of block 7 and clamping limb 5, the installation and replacement of cushion block 7 are also more convenient, by replacement cushion block 7 this had rectangular
The high precision machine tool clamping device of jack can be used for clamping the workpiece of different size, and application is relatively broad.
The bottom of installation cavity 2 is equipped with threaded mounting hole 17, is equipped with guide rod 18, the rear end of guide rod 18 in installation cavity 2
It equipped with external screw thread and is screwed in threaded mounting hole 17, the front end of guide rod 18 is inserted into the inner hole of gripper sleeve 4, guide rod
Reset spring 19 is set on 18, the both ends of reset spring 19 act against the bottom surface of installation cavity 2 and the rear end of gripper sleeve 4 respectively
On face.Guide rod 18 is in contact with the inner wall of gripper sleeve 4, and during gripper sleeve 4 slides back and forth, guide rod 18 has
Thus the effect of guiding can keep 4 central stabilizer of gripper sleeve, more more accurate to the clamping of workpiece, when needing to unload workpiece
Buckle closure 13 can be unscrewed, reset spring 19 drives gripper sleeve 4 to slide forwards, is detached from inner conical surface 3 and male cone (strobilus masculinus), four folders
The opposite opening of limb 5 is held, convenient for the taking-up of workpiece.
The rear end of cylindricality mounting base 1 is connected with the Morse's taper bar 20 that diameter is gradually reduced from front to back.Morse's taper bar
20 can cooperate with the associated mechanisms on lathe, convenient for the installation of the high precision machine tool clamping device with rectangular jack.
The front end face of the front end perforation clamping limb 5 of mounting groove 6, the rear end of mounting groove 6 is V-arrangement recessed portion 21, cushion block 7
Rear end is equipped with V-arrangement protrusion 22, and the V-arrangement protrusion 22 of cushion block 7 is inserted into the V-type recessed portion of mounting groove 6.When cushion block 7 is installed, V
Shape recessed portion 21 has positioning action to V-arrangement protrusion 22, and it is heavy on the threaded connection hole 9 and clamping limb 5 on cushion block 7 to make
Hole 8 is aligned, and convenient for the connection of fastening bolt 10 and threaded connection hole 9, being installed rear V-arrangement recessed portion 21 has limit to cushion block 7
Position effect, can prevent it from swinging and loosen fastening bolt 10.
It clamps 5 front end of limb and is equipped with the surface of subsidence 23 for being lower than its end face close to the position of the conical surface, when four clamping 5 phases of limb
When to closure, annular surface is collectively formed in the surface of subsidence 23 on four clamping limbs 5, and panel 15 is pressed against on annular surface, limb
Except through hole 16 on front end face extending panel 15.After adopting the above structure, expose the front end face of limb, install
The positioning surface of workpiece Shi Keyu workpiece is in contact, convenient to position to workpiece.
Multiple handle sockets 24 are equipped on the outer peripheral surface of buckle closure 13.It can be inserted into handle at handle socket 24, facilitate buckle closure
13 turn.
In conclusion the utility model is not limited to above-mentioned specific embodiment.Those skilled in the art are not departing from this reality
Under the premise of with novel spirit and scope, several change and modification can be done, it is practical new that all these variations should all fall into this
The protection scope of type.