CN201333539Y - Machine tool chuck clamping device - Google Patents
Machine tool chuck clamping device Download PDFInfo
- Publication number
- CN201333539Y CN201333539Y CNU2008201777987U CN200820177798U CN201333539Y CN 201333539 Y CN201333539 Y CN 201333539Y CN U2008201777987 U CNU2008201777987 U CN U2008201777987U CN 200820177798 U CN200820177798 U CN 200820177798U CN 201333539 Y CN201333539 Y CN 201333539Y
- Authority
- CN
- China
- Prior art keywords
- pawl
- main shaft
- pressing device
- pressing plate
- machine tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Gripping On Spindles (AREA)
Abstract
The utility model discloses a machine tool chuck clamping device, comprising a main shaft which is provided with a pore space, a pulling tube arranged in the pore space of the main shaft, a chuck arranged at front end of the pulling tube, a pressure plate arranged at the rear end of the pulling tube, two to six jaws which are arranged at the periphery of the main shaft and can rotate with a certain angle, a thrusting device which is used for driving the jaws to push the pressure plate backwards for driving the pulling tube to move backwards and a spring for providing resetting elasticity for the pulling tube. The jaw is provided with a supporting part used as a rotating center, a pushing part for pushing the pressure plate to move backwards and a stress part for bearing the pressure of the thrusting device; the thrusting device is provided with a pressing part which can push the stress part of the jaw to move along the direction of an axial wire which is close to the main shaft. The machine tool chuck clamping device has the advantages of small occupying area and rapid returning speed, and the processing efficiency is improved.
Description
Technical field
The utility model belongs to machine tool chuck structure-design technique field, is specifically related to a kind of machine tool chuck clamping device.
Background technology
Traditional lathe clamping device, generally comprise the main shaft that is provided with vestibule, be arranged on trombone slide in the main shaft vestibule, be arranged on the trombone slide front end chuck, be arranged on the trombone slide rear end pressing plate, be arranged on main shaft periphery and rotatable certain angle two to six pawls, be used to drive each pawl make its promote backward pressing plate and and then drive the pressing device that trombone slide moves backward; Traditional pressing device generally all is to utilize sliding sleeve pushing pawl, and pawl is rotated counterclockwise, pawl promote again pressing plate and and then drive trombone slide and move backward, clamped until chuck.
For example Chinese patent 02247374.2 discloses a kind of watchmaker's machine tool chuck, comprise handle, clutch bearing pin, slide block, clutch shifter, screw and three-jaw etc., its design feature is to adopt clutch shifter to replace traditional clutch circle, has replaced traditional slide block with the clutch bearing pin.
Chinese patent 200720106772.9 discloses a kind of clutch apparatus of watchmaker's machine tool chuck, comprise main shaft, be provided with the concentric trombone slide in the main shaft, main shaft one end is with sliding sleeve, push away circle on the sliding sleeve, one end of trombone slide is provided with the three-jaw seat that three-jaw is housed, be fixed with the three-jaw flap that matches with the three-jaw seat on main shaft one end, trombone slide one end is provided with trombone slide and cap, its design feature is: described three-jaw seat is provided with several three-jaw block holes, be inserted with three-jaw flap hold-down screw in the three-jaw block hole, be with the three-jaw regulating spring on the hold-down screw, the three-jaw flap is provided with the corresponding screwed hole of the through hole of taking with three-jaw, and the head of hold-down screw passes through hole and screws in the screwed hole.
Pawl in these two kinds of lathes is all driven to do by sliding sleeve and rotates counterclockwise, its shortcoming be the enlargement ratio of power few, firmly big, the trombone slide return speed is slow, component wear is serious, service life is short; Backboard is movable easily, and also the structure of cap causes its regulating step loaded down with trivial details, not convenient.
The utility model contents table
The purpose of this utility model provides the machine tool chuck clamping device that a kind of less, return speed of taking up room is fast, improve working (machining) efficiency.
The technical scheme that realizes the utility model purpose is: a kind of machine tool chuck clamping device, comprise the main shaft that is provided with vestibule, be arranged on the trombone slide in the main shaft vestibule, be arranged on the chuck of trombone slide front end, be arranged on the pressing plate of trombone slide rear end, be arranged on two to six pawls of main shaft periphery and rotatable certain angle, be used to drive each pawl make its promote backward pressing plate and and then drive the pressing device that trombone slide moves backward, with be used to trombone slide that the spring of reseting elasticity is provided, described each pawl is provided with the support portion that is used for as center of rotation, be used to promote described pressing plate pushing part of moving backward and the forced section that is used to bear pressing device pressure; In the axial direction, the pushing part of described each pawl is against on the pressing plate, and the forced section of each pawl is arranged on the end away from pressing plate, and described support portion is arranged between pushing part and the forced section; Described pressing device be provided with can promote described each pawl forced section towards the pressing piece that moves near spindle axis line direction.
In the technique scheme, described spring is positioned at the main shaft vestibule and is set on the trombone slide, and an end of described spring is against on the main shaft, and the other end is against on the trombone slide; Described pressing device is provided with main shaft is concentric, and can move back and forth along the main-shaft axis direction.
In the technique scheme, the support portion of described each pawl is provided with circular hole, and described main shaft is provided with and is used for the pivot pin that matches with this circular hole; Pressing piece in the described pressing device is the sliding sleeve that is set on the main shaft, described sliding over apart from the nearer side of described pawl, its perforate is that outer imperial palace is little and be provided with the slick and sly arcwall face or the bellmouth orifice of chamfered transition, described sliding in the process that moves along direction near pawl, can overlap on the forced section that is pressed in described each pawl, under the squeezing action on the arcwall face of the slyness on the perforate inwall or inclined-plane, make the forced section of each pawl towards moving near spindle axis line direction.
In the technique scheme, this clamping device also comprises the pawl support that is arranged on the main shaft, and described pawl support is provided with the semi-circular recesses of a ring-type on the end wall of a side of contiguous described pressing plate, be provided with the stopper slot identical with pawl quantity in the axial direction; The support portion of described each pawl is provided with the semicircle boss that matches with pawl support semi-circular recesses, and its pushing part is provided with protrusion and boss that have arcwall face or inclined-plane; The semicircle boss of described each pawl support portion is arranged in the semi-circular recesses of pawl support, and the boss with arcwall face or inclined-plane of described each pawl pushing part is against on the pressing plate, and the forced section of described each pawl is arranged in the corresponding stopper slot of pawl support; Described pawl in rotating process, the extended and described stopper slot of indentation of its forced section.
In the technique scheme, the pressing piece in the described pressing device comprises and is set in the bearing on the pawl support and is used to drive the driving member that described bearing in axial direction moves on the pawl support.
In the technique scheme, described pressing device is rectilinearly-movable pressing device or swing type pressing device; When described pressing device was the rectilinearly-movable pressing device, described driving member comprised the cylinder/hydraulic cylinder that is provided with vestibule, and described main shaft passes the vestibule of described cylinder/hydraulic cylinder, and the piston of described cylinder/hydraulic cylinder and described bearing relative fixed are provided with; When described pressing device was the swing type pressing device, described driving member comprised two bearing Fasteners, pushing lasso, a support column and a drive link; Described pushing lasso in the vertical direction is provided with two connection holes of symmetry, is provided with the connecting rod of two protrusions of symmetry in the horizontal direction; The basic configuration of described bearing Fastener is a T shape, and an end is provided with the cylinder that matches with the connection holes that pushes lasso, and the other end is provided with the groove that matches with bearing; The cylinder of described bearing Fastener inserts in the connection holes of pushing lasso, and the other end is stuck on the bearing by groove; The connecting rod and the support column of described pushing lasso are rotationally connected, and another connecting rod and the drive link of described pushing lasso are rotationally connected.
In the technique scheme, when described pressing device was the swing type pressing device, described pressing device also comprised manual operation handle or cylinder or hydraulic cylinder, and described drive link links to each other with the piston of described manual operation handle or cylinder or hydraulic cylinder.
In the technique scheme, described pressing plate comprises internal threaded nut, the briquetting that matches with notch geometry that is provided with breach and screw, the lock-screw that is used for the roof pressure briquetting; The breach of described pressing plate is provided with vertically, and the screw of described pressing plate is disposed radially and is positioned at the central authorities of breach; Described lock-screw) is arranged in the screw; The outside of described briquetting is provided with screw thread; The shape approximation of described breach and described briquetting is in trapezoidal.
The utlity model has positive effect:
(1) in the utility model, turn clockwise pawl and then promote the method that pressing plate moves backward of employing is finally realized the clamping of chuck, promising trombone slide also is set simultaneously resets the spring of reseting elasticity is provided, this structure can utilize spring that trombone slide is resetted fast, improves working (machining) efficiency; In addition, the utility model adopts the pawl turn clockwise to promote the method that pressing plate moves backward, promotes the method that pressing plate moves backward with pawl that traditional employing is rotated counterclockwise and compares, and can make whole clamping device have the less advantage that takes up room.
(2) in the utility model product, be provided with the spring that reseting elasticity is provided for trombone slide; Be provided with in the pressing device can promote described each pawl forced section towards moving near spindle axis line direction---also be the pressing piece that pawl is turned clockwise, it is less that this structure makes the utility model product have to take up room, the advantage that working (machining) efficiency improves.The utility model can reduce each pawl pin holding capacity with multijaw work such as two pawls, three-jaw, four paws, six pawls, and the pawl pin should not be worn and torn and rupture.
(3) in the utility model, the support portion of described each pawl is provided with circular hole, and described main shaft is provided with and is used for the pivot pin that matches with this circular hole; Pressing piece in the described pressing device is the sliding sleeve that is set on the main shaft, it is little and be provided with the slick and sly arcwall face or the bellmouth orifice of chamfered transition that outer imperial palace is arranged in the perforate of sliding sleeve, slide in the process that moves along direction described near pawl, utilize this bellmouth orifice cover to be pressed on the forced section of described each pawl, utilization is arranged on the squeezing action on the arcwall face or the inclined-plane of the slyness on the bellmouth orifice inwall, make the forced section of each pawl towards moving, even also pawl clockwise rotates near spindle axis line direction; Compare with traditional clamping device, have advantage of simple structure.
(4) in the utility model, this clamping device also comprises the pawl support that is arranged on the main shaft, and described pawl support is provided with the semi-circular recesses of a ring-type on the end wall of a side of contiguous described pressing plate, be provided with the stopper slot identical with pawl quantity in the axial direction; The support portion of described each pawl is provided with the semicircle boss that matches with pawl support semi-circular recesses, and its pushing part is provided with protrusion and boss that have arcwall face or inclined-plane; The semicircle boss of described each pawl support portion is arranged in the semi-circular recesses of pawl support, and the boss with arcwall face or inclined-plane of described each pawl pushing part is against on the pressing plate, and the forced section of described each pawl is arranged in the corresponding stopper slot of pawl support; Described pawl in rotating process, the extended and described stopper slot of indentation of its forced section; In this structure, the supporter that utilizes the pawl support to rotate as pawl, replaced traditional pivot pin, its advantage is that the end wall that is used for the support portion of support claw in the pawl support can be done thicklyer, simultaneously pawl is owing to need not to be provided with axis hole, so also can do thicklyer, makes that the bearing capacity of end wall of the support portion of pawl and pawl support is better to the support portion of pawl, the clamping device that axis hole is set with traditional needs is compared, and effectively avoids axis hole because of bearing the excessive phenomenon that ruptures of pressure; Simultaneously, because the bearing capacity of the support portion of pawl and the end wall of pawl support is better, can use pawl with big enlargement ratio, only need to be applied on the pressing piece in the pressing device with less power, can by pawl promote pressing plate and and then drive pull bar and move until clamping collet backward, so also have the less advantage of power consumption.In addition, because pawl all contracts in the stopper slot of pawl support at ordinary times, so also have the integral body less advantage that takes up room.
(5) in the utility model product, when the pressing piece in the described pressing device is selected bearing for use, have not easy to wearly, resistance is few, and noise is little, the advantage that service life is long.
(6) in the utility model product, when described pressing device is the swing type pressing device, can directly be connected the piston of cylinder or hydraulic cylinder with drive link, can obtain the advantage of automation, its manufacturing cost is lower.
(7) in the utility model product, when described pressing device is the rectilinearly-movable pressing device since be vertically rectilinear translation as the bearing of pressing piece, so have abrasion resistance properties advantage preferably.
(8) in the utility model product, described pressing plate comprises internal threaded nut, the briquetting that matches with notch geometry that is provided with breach and screw, the lock-screw that is used for the roof pressure briquetting; The breach of described pressing plate is provided with vertically, and the screw of described pressing plate is disposed radially and is positioned at the central authorities of breach; Described lock-screw) is arranged in the screw; The outside of described briquetting is provided with screw thread; The shape approximation of described breach and described briquetting is in trapezoidal, the pressing plate of this structure, not only when being promoted backward, can drive trombone slide synchronously by pawl, himself also be a governor motion simultaneously, the rotation nut can make and self move forward and backward along trombone slide, is used to regulate the spacing between self and the pawl, after mixing up spacing, only need screw lock-screw, suppress briquetting, can be self being fixed on the trombone slide; This kind pressing plate can be finely tuned, and has and regulate sensitive, advantage easily.
Description of drawings
Fig. 1 be first kind of structure of the utility model partly cut open structural representation;
Fig. 2 is a kind of perspective view of machine tool chuck clamping device shown in Figure 1;
The perspective view that Fig. 3 is a machine tool chuck clamping device shown in Figure 2 when another angle is observed;
Fig. 4 is a kind of perspective view of machine tool chuck clamping device median claw support shown in Figure 1;
The perspective view that Fig. 5 is a pawl support shown in Figure 4 when another angle is observed;
Fig. 6 be pawl support shown in Figure 4 partly cut open structural representation;
Fig. 7 is a kind of perspective view of figure machine tool chuck clamping device shown in Figure 1 median claw;
The perspective view that Fig. 8 is a pawl shown in Figure 7 when another angle is observed;
Fig. 9 be pawl shown in Figure 7 partly cut open structural representation;
Figure 10 is a kind of perspective view of machine tool chuck clamping device middle (center) bearing Fastener shown in Figure 1;
A kind of perspective view that Figure 11 is a bearing Fastener shown in Figure 10 when another angle is observed;
Figure 12 is a kind of perspective view of pushing lasso in the machine tool chuck clamping device shown in Figure 1;
Figure 13 is a kind of perspective view of machine tool chuck clamping device center platen shown in Figure 1;
Figure 14 is a kind of perspective view of briquetting in the pressing plate shown in Figure 13;
Figure 15 is the kind perspective view of nut in the pressing plate shown in Figure 13;
Figure 16 is the sectional structure chart that adopts the head that machine tool chuck clamping device shown in Figure 1 makes;
Figure 17 is turn an angle a pusher dynamic pressure plate and drive the sectional structure schematic diagram of trombone slide of the pawl in the head shown in Figure 16;
Figure 18 be adopt head that second kind of structure of the utility model make partly cut open structural representation;
Figure 19 be the pawl in the head shown in Figure 180 turn an angle the pusher dynamic pressure plate and drive trombone slide partly cut open structural representation;
Figure 20 is a kind of structural representation of pressing device in the head shown in Figure 180;
Figure 21 be adopt head that the third structure of the utility model makes partly cut open structural representation;
Figure 22 is a kind of structural representation of head median claw shown in Figure 21.
Reference numeral is: main shaft 1, vestibule 11, trombone slide 2, chuck 21, pressing plate 22, internal threaded nut 221, breach 2211, screw 2212, briquetting 222, screw thread 2221, lock-screw 223, pawl 3, support portion 31, circular hole 311, semicircle boss 312, pushing part 32, boss 321, forced section 33, pressing device 4, pressing piece 41, driving member 42, cylinder/hydraulic cylinder 421, vestibule 422, piston 423, plug 4231, air inlet 4232, bearing Fastener 424, cylinder 4241, groove 4242, pushing lasso 425, connection holes 4251, connecting rod 4252, support column 426, drive link 427, operating grip, cylinder 44, piston 441, bearing 46, spring 5, pivot pin 6, sliding sleeve 7, perforate 71, pawl support 8, end wall 81, semi-circular recesses 82, stopper slot 83, headstock 91, belt pulley 92, bearing 93.
The specific embodiment
(embodiment 1, machine tool chuck clamping device)
Fig. 1 to Figure 17 has shown a kind of specific embodiment of the present utility model, wherein Fig. 1 be first kind of structure of the utility model partly cut open structural representation; Fig. 2 is a kind of perspective view of machine tool chuck clamping device shown in Figure 1; The perspective view that Fig. 3 is a machine tool chuck clamping device shown in Figure 2 when another angle is observed; Fig. 4 is a kind of perspective view of machine tool chuck clamping device median claw support shown in Figure 1; The perspective view that Fig. 5 is a pawl support shown in Figure 4 when another angle is observed; Fig. 6 be pawl support shown in Figure 4 partly cut open structural representation; Fig. 7 is a kind of perspective view of figure machine tool chuck clamping device shown in Figure 1 median claw; The perspective view that Fig. 8 is a pawl shown in Figure 7 when another angle is observed; Fig. 9 be pawl shown in Figure 7 partly cut open structural representation; Figure 10 is a kind of perspective view of machine tool chuck clamping device middle (center) bearing Fastener shown in Figure 1; A kind of perspective view that Figure 11 is a bearing Fastener shown in Figure 10 when another angle is observed; Figure 12 is a kind of perspective view of pushing lasso in the machine tool chuck clamping device shown in Figure 1; Figure 13 is a kind of perspective view of the described machine tool chuck clamping device of Fig. 1 center platen; Figure 14 is a kind of perspective view of briquetting in the pressing plate shown in Figure 13; Figure 15 is the kind perspective view of nut in the pressing plate shown in Figure 13; Figure 16 is the sectional structure chart that adopts the head that machine tool chuck clamping device shown in Figure 1 makes; Figure 17 is turn an angle a pusher dynamic pressure plate and drive the sectional structure schematic diagram of trombone slide of the pawl in the head shown in Figure 16.
Present embodiment is a kind of instrument lathe chuck clamping device, see Fig. 1 to Figure 15, this chuck clamping device comprises the main shaft 1 that is provided with vestibule 11, be arranged on trombone slide 2 in the main shaft vestibule 11, be arranged on trombone slide 2 front ends chuck 21, be arranged on trombone slide 2 rear ends pressing plate 22, be arranged on main shaft 1 periphery and rotatable certain angle six pawls 3, be used to drive each pawl 3 make its promote backward pressing plate 22 and and then drive pressing device 4 that trombone slide 2 moves backward, be arranged on the pawl support 8 on the main shaft 1 and be used to trombone slide 2 that the spring 5 of reseting elasticity is provided; Described spring 5 is positioned at main shaft 1 vestibule 11 and is set on the trombone slide 2, and an end of described spring 5 is against on the main shaft 1, and the other end is against on the trombone slide 2; Described pressing device 4 and main shaft 1 concentric setting, and can move back and forth along main shaft 1 axis direction.
Described each pawl 3 is provided with the support portion 31 that is used for as center of rotation, the forced section 33 that is used to promote the mobile backward pushing part 32 of described pressing plate 22 and is used to bear pressing device 4 pressure; In the axial direction, the pushing part 32 of described each pawl 3 is against on the pressing plate 22, and the forced section 33 of each pawl 3 is arranged on the end away from pressing plate 22, and described support portion 31 is arranged between pushing part 32 and the forced section 33;
Described pressing device 4 be provided with can promote described each pawl 3 forced section 33 towards the pressing piece 41 that moves near main shaft 1 direction of axis line.
Described pawl support 8 is provided with the semi-circular recesses 82 of a ring-type on the end wall 81 of a side of contiguous described pressing plate 22, be provided with the stopper slot 83 identical with pawl 3 quantity in the axial direction; The support portion 31 of described each pawl 3 is provided with the semicircle boss 312 that matches with pawl support 8 semi-circular recesses 82, its pushing part 32 is provided with protrusion and boss 321 that have arcwall face or inclined-plane, in the present embodiment, its pushing part 32 is provided with protrusion and boss 321 that have arcwall face; The semicircle boss 312 of described each pawl 3 support portion 31 is arranged in the semi-circular recesses 82 of pawl support 8, the boss with arcwall face 321 of described each pawl pushing part 32 is against on the pressing plate 22, and the forced section 33 of described each pawl 3 is arranged in the corresponding stopper slot 83 of pawl support 8; Described pawl 3 in rotating process, its forced section 33 extended and described stopper slots 83 of indentation.
The pressing device 4 of present embodiment is the swing type pressing device, comprises pressing piece 41 and cylinder 44; Pressing piece 41 wherein comprises the bearing 46 that is set on the pawl support 8 and be used to drive the driving member 42 that described bearing 46 in axial direction moves on pawl support 8.Described driving member 42 comprises two bearing Fasteners 424, pushing lasso 425, a support column 426 and a drive link 427; Described pushing lasso 425 in the vertical directions are provided with two connection holes 4251 of symmetry, are provided with the connecting rod 4252 of two protrusions of symmetry in the horizontal direction; The basic configuration of described bearing Fastener 424 is T shapes, and an end is provided with the cylinder 4241 that matches with the connection holes 4251 that pushes lasso 425, and the other end is provided with the groove 4242 that matches with bearing 46; The cylinder 4241 of described bearing Fastener 424 inserts in the connection holes 4251 of pushing lasso 425, and the other end is stuck on the bearing 46 by groove 4242; A connecting rod 4252 and the support column 426 of described pushing lasso 425 are rotationally connected, and another connecting rod 4252 of described pushing lasso 425 is rotationally connected with drive link 427.Described drive link 427 links to each other with the piston 441 of cylinder 44.In other embodiments, can select for use manual operation handle or hydraulic cylinder to replace cylinder 44 in the present embodiment.
In the present embodiment, when described pressing device is the swing type pressing device, can directly be connected the piston of cylinder or hydraulic cylinder with drive link, can obtain the advantage of automation, its manufacturing cost is lower.
(embodiment 2, machine tool chuck clamping device)
Figure 18 to 20 has shown second kind of specific embodiment of the present utility model, wherein Figure 18 be adopt head that second kind of structure of the utility model make partly cut open structural representation; Figure 19 be the pawl in the head shown in Figure 180 turn an angle the pusher dynamic pressure plate and drive trombone slide partly cut open structural representation; Figure 20 is a kind of structural representation of pressing device in the head shown in Figure 180.
Present embodiment is substantially the same manner as Example 1, difference is: see Figure 18 to Figure 20, described pressing device 4 is rectilinearly-movable pressing devices, described driving member 42 comprises the cylinder/hydraulic cylinder 421 that is provided with vestibule 422, described main shaft 1 passes the vestibule 422 of described cylinder/hydraulic cylinder 421, the piston 423 of described cylinder/hydraulic cylinder 421 and described bearing 46 relative fixed settings specifically are to utilize to be provided with externally threaded plug 4231 described bearing 46 is fixed on the inwall of described piston 423.
In the present embodiment, when described pressing device is the rectilinearly-movable pressing device since be vertically rectilinear translation as the bearing of pressing piece, so have abrasion resistance properties advantage preferably.
(embodiment 3, machine tool chuck clamping device)
Figure 21 to Figure 22 has shown the third specific embodiment of the present utility model, wherein Figure 21 be adopt head that the third structure of the utility model makes partly cut open structural representation; Figure 22 is a kind of structural representation of head median claw shown in Figure 21.
Present embodiment is substantially the same manner as Example 1, sees Figure 21 to Figure 22, and difference is: the support portion 31 of described each pawl 3 is provided with circular hole 311, and described main shaft 1 is provided with and is used for the pivot pin 6 that matches with this circular hole 311; Pressing piece 41 in the described pressing device 4 is the sliding sleeves 7 that are set on the main shaft 1, described sliding sleeve 7 is apart from the nearer side of described pawl 3, its perforate 71 is that outer imperial palace is little and be provided with the slick and sly arcwall face or the bellmouth orifice of chamfered transition, described sliding sleeve 7 is in the process that moves along the direction near pawl 3, can overlap on the forced section 33 that is pressed in described each pawl 3, under the squeezing action on the arcwall face of the slyness on perforate 71 inwalls or inclined-plane, make the forced section 33 of each pawl 3 towards moving near main shaft 1 direction of axis line.
The clamping method of work of machine tool chuck in the foregoing description 1 to embodiment 3 may further comprise the steps:
1. in the vestibule 11 of main shaft 1, trombone slide 2 is set; Front end at trombone slide 2 is provided with chuck 21, in the rear end of trombone slide 2 pressing plate 22 is set; Be provided for providing the spring 5 of reseting elasticity for trombone slide 2; Two to six pawls 3 and a pressing device that moves back and forth 4 of rotatable certain angle are set in main shaft 1 periphery; One end of described each pawl 3 is against on the pressing plate 22;
2. pressing device 4 moves under external force, and then drive each pawl 3 and rotate around the center of rotation clockwise direction of each pawl 3, when each pawl 3 rotates in the clockwise direction, promote that described pressing plate 22 moves backward and and then drive synchronously that trombone slide 2 moves backward and clamped under the extruding of main shaft 1 until chuck 21;
3. after pressing device 4 homings, described trombone slide 2 is homing under the elastic force effect of back-moving spring 5, and described each pawl 3 is also driven and homing by pressing plate 22 synchronously.
Above-mentioned steps 1. in, described spring 5 is positioned at main shaft 1 vestibule 11 and is set on the trombone slide 2, an end of described spring 5 is against on the main shaft 1, the other end is against on the trombone slide 2; Described pressing device 4 and main shaft 1 concentric setting, and can move back and forth along main shaft 1 axis direction; Described each pawl 3 is provided with the support portion 31 that is used for as center of rotation, the forced section 33 that is used to promote the mobile backward pushing part of described pressing plate 22 and is used to bear pressing device 4 pressure; In the axial direction, described support portion 31 is arranged between pushing part and the forced section 33; Described each pawl 3 is arranged between pressing plate 22 and the chuck 21, and the pushing part of each pawl 3 is against on the pressing plate 22.
Above-mentioned steps 2. in, when rotated in the clockwise direction the pushing part of each pawl 3, the pushing part of each pawl 3 promoted described pressing plate 22 and moves a certain distance backward on axis direction, and then drove trombone slide 2 and move a certain distance backward.
The foregoing description 1 to embodiment 3, turn clockwise pawl and then promote the method that pressing plate moves backward of employing is finally realized the clamping of chuck, promising trombone slide also is set simultaneously resets the spring of reseting elasticity is provided, this structure can utilize spring that trombone slide is resetted fast, improves working (machining) efficiency; In addition, the utility model adopts the pawl turn clockwise to promote the method that pressing plate moves backward, promotes the method that pressing plate moves backward with pawl that traditional employing is rotated counterclockwise and compares, and can make whole clamping device have the less advantage that takes up room.
The foregoing description 1 to embodiment 3 has the following advantages:
(1) the foregoing description 1 to embodiment 3, is provided with the spring that reseting elasticity is provided for trombone slide; Be provided with in the pressing device can promote described each pawl forced section towards moving near spindle axis line direction---also be the pressing piece that pawl is turned clockwise, it is less that this structure makes the utility model product have to take up room, the advantage that working (machining) efficiency improves.The utility model can reduce each pawl pin holding capacity with multijaw work such as two pawls, three-jaw, four paws, six pawls, and the pawl pin should not be worn and torn and rupture.
(2) the foregoing description 1 to embodiment 3, and the support portion of described each pawl is provided with circular hole, and described main shaft is provided with and is used for the pivot pin that matches with this circular hole; Pressing piece in the described pressing device is the sliding sleeve that is set on the main shaft, it is little and be provided with the slick and sly arcwall face or the bellmouth orifice of chamfered transition that outer imperial palace is arranged in the perforate of sliding sleeve, slide in the process that moves along direction described near pawl, utilize this bellmouth orifice cover to be pressed on the forced section of described each pawl, utilization is arranged on the squeezing action on the arcwall face or the inclined-plane of the slyness on the bellmouth orifice inwall, make the forced section of each pawl towards moving, even also pawl clockwise rotates near spindle axis line direction; Compare with traditional clamping device, have advantage of simple structure.
(3) the foregoing description 1 to embodiment 3, described clamping device comprises the pawl support that is arranged on the main shaft, described pawl support is provided with the semi-circular recesses of a ring-type on the end wall of a side of contiguous described pressing plate, be provided with the stopper slot identical with pawl quantity in the axial direction; The support portion of described each pawl is provided with the semicircle boss that matches with pawl support semi-circular recesses, and its pushing part is provided with protrusion and boss that have arcwall face or inclined-plane; The semicircle boss of described each pawl support portion is arranged in the semi-circular recesses of pawl support, and the boss with arcwall face or inclined-plane of described each pawl pushing part is against on the pressing plate, and the forced section of described each pawl is arranged in the corresponding stopper slot of pawl support; Described pawl in rotating process, the extended and described stopper slot of indentation of its forced section; In this structure, the supporter that utilizes the pawl support to rotate as pawl, replaced traditional pivot pin, its advantage is that the end wall that is used for the support portion of support claw in the pawl support can be done thicklyer, simultaneously pawl is owing to need not to be provided with axis hole, so also can do thicklyer, makes that the bearing capacity of end wall of the support portion of pawl and pawl support is better to the support portion of pawl, the clamping device that axis hole is set with traditional needs is compared, and effectively avoids axis hole because of bearing the excessive phenomenon that ruptures of pressure; Simultaneously, because the bearing capacity of the support portion of pawl and the end wall of pawl support is better, can use pawl with big enlargement ratio, only need to be applied on the pressing piece in the pressing device with less power, can by pawl promote pressing plate and and then drive pull bar and move until clamping collet backward, so also have the less advantage of power consumption.In addition, because pawl all contracts in the stopper slot of pawl support at ordinary times, so also have the integral body less advantage that takes up room.
(4) the foregoing description 1 to embodiment 3, when the pressing piece in the described pressing device is selected bearing for use, has not easy to wearly, and resistance is few, and noise is little, the advantage that service life is long.
(5) state embodiment 1 to embodiment 3, described pressing plate comprises internal threaded nut, the briquetting that matches with notch geometry that is provided with breach and screw, the lock-screw that is used for the roof pressure briquetting; The breach of described pressing plate is provided with vertically, and the screw of described pressing plate is disposed radially and is positioned at the central authorities of breach; Described lock-screw) is arranged in the screw; The outside of described briquetting is provided with screw thread; The shape approximation of described breach and described briquetting is in trapezoidal, the pressing plate of this structure, not only when being promoted backward, can drive trombone slide synchronously by pawl, himself also be a governor motion simultaneously, the rotation nut can make and self move forward and backward along trombone slide, is used to regulate the spacing between self and the pawl, after mixing up spacing, only need screw lock-screw, suppress briquetting, can be self being fixed on the trombone slide; This kind pressing plate can be finely tuned, and has and regulate sensitive, advantage easily.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (8)
1, a kind of machine tool chuck clamping device, comprise the main shaft (1) that is provided with vestibule (11), be arranged on trombone slide (2) in the main shaft vestibule (11), be arranged on trombone slide (2) front end chuck (21), be arranged on trombone slide (2) rear end pressing plate (22), be arranged on main shaft (1) periphery and rotatable certain angle two to six pawls (3), be used to drive each pawl (3) make its promote backward pressing plate (22) and and then drive the pressing device (4) that trombone slide (2) moves backward; It is characterized in that:
Also comprise the spring (5) that is used to trombone slide (2) that reseting elasticity is provided;
Described each pawl (3) is provided with the support portion (31) that is used for as center of rotation, the forced section (33) that is used to promote the mobile backward pushing part (32) of described pressing plate (22) and is used to bear pressing device (4) pressure; In the axial direction, the pushing part (32) of described each pawl (3) is against on the pressing plate (22), and the forced section (33) of each pawl (3) is arranged on the end away from pressing plate (22), and described support portion (31) are arranged between pushing part (32) and the forced section (33);
Described pressing device (4) be provided with can promote described each pawl (3) forced section (33) towards the pressing piece (41) that moves near main shaft (1) direction of axis line.
2, machine tool chuck clamping device according to claim 1, it is characterized in that: described spring (5) is positioned at main shaft (1) vestibule (11) and is set on the trombone slide (2), one end of described spring (5) is against on the main shaft (1), and the other end is against on the trombone slide (2); Described pressing device (4) and the concentric setting of main shaft (1), and can move back and forth along main shaft (1) axis direction.
3, machine tool chuck clamping device according to claim 1 is characterized in that: the support portion (31) of described each pawl (3) is provided with circular hole (311), and described main shaft (1) is provided with and is used for the pivot pin (6) that matches with this circular hole (311); Pressing piece (41) in the described pressing device (4) is the sliding sleeve (7) that is set on the main shaft (1), described sliding sleeve (7) is at the nearer side of distance described pawl (3), its perforate (71) is that outer imperial palace is little and be provided with the slick and sly arcwall face or the bellmouth orifice of chamfered transition, described sliding sleeve (7) is in the process that moves along the direction near pawl (3), can overlap on the forced section (33) that is pressed in described each pawl (3), under the squeezing action on the arcwall face of the slyness on perforate (71) inwall or inclined-plane, make the forced section (33) of each pawl (3) towards moving near main shaft (1) direction of axis line.
4, machine tool chuck clamping device according to claim 1, it is characterized in that: this clamping device also comprises the pawl support (8) that is arranged on the main shaft (1), described pawl support (8) is provided with the semi-circular recesses (82) of a ring-type on the end wall (81) of a side of contiguous described pressing plate (22), be provided with the stopper slot (83) identical with pawl (3) quantity in the axial direction; The support portion (31) of described each pawl (3) is provided with the semicircle boss (312) that matches with pawl support (8) semi-circular recesses (82), and its pushing part (32) are provided with protrusion and boss (321) that have arcwall face or inclined-plane; The semicircle boss (312) of described each pawl (3) support portion (31) is arranged in the semi-circular recesses (82) of pawl support (8), the boss with arcwall face or inclined-plane (321) of described each pawl pushing part (32) is against on the pressing plate (22), and the forced section (33) of described each pawl (3) is arranged in the corresponding stopper slot (83) of pawl support (8); Described pawl (3) in rotating process, the extended and described stopper slot of indentation (83) of its forced section (33).
5, machine tool chuck clamping device according to claim 4 is characterized in that: the pressing piece (41) in the described pressing device (4) comprises the bearing (46) that is set on the pawl support (8) and be used to drive the driving member (42) that described bearing (46) in axial direction moves on pawl support (8).
6, machine tool chuck clamping device according to claim 5 is characterized in that: described pressing device (4) is rectilinearly-movable pressing device (4) or swing type pressing device (4);
When described pressing device (4) is the rectilinearly-movable pressing device, described driving member (42) comprises the cylinder/hydraulic cylinder (421) that is provided with vestibule (422), described main shaft (1) passes the vestibule (422) of described cylinder/hydraulic cylinder (421), the piston (423) of described cylinder/hydraulic cylinder (421) and described bearing (46) relative fixed setting;
When described pressing device (4) was the swing type pressing device, described driving member (42) comprised two bearing Fasteners (424), pushing lasso (425), a support column (426) and a drive link (427); Described pushing lasso (425) in the vertical direction is provided with two connection holes (4251) of symmetry, is provided with the connecting rod (4252) of two protrusions of symmetry in the horizontal direction; The basic configuration of described bearing Fastener (424) is a T shape, and an end is provided with the cylinder (4241) that matches with the connection holes that pushes lasso (425) (4251), and the other end is provided with the groove (4242) that matches with bearing (46); The cylinder (4241) of described bearing Fastener (424) inserts in the connection holes (4251) of pushing lasso (425), and the other end is stuck on the bearing (46) by groove (4242); A connecting rod (4252) of described pushing lasso (425) is rotationally connected with support column (426), and another connecting rod (4252) of described pushing lasso (425) is rotationally connected with drive link (427).
7, machine tool chuck clamping device according to claim 6, it is characterized in that: when described pressing device (4) is the swing type pressing device, described pressing device (4) also comprises manual operation handle or cylinder (44) or hydraulic cylinder, and described drive link (427) links to each other with the piston (441) of described manual operation handle or cylinder (44) or hydraulic cylinder.
8, machine tool chuck clamping device according to claim 1 is characterized in that: described pressing plate (22) comprises the internal threaded nut (221) that is provided with breach (2211) and screw (2212), the briquetting (222) that matches with breach (2211) shape, the lock-screw (223) that is used for roof pressure briquetting (222); The breach (2211) of described pressing plate (22) is provided with vertically, and the screw (2212) of described pressing plate (22) is disposed radially and is positioned at the central authorities of breach (2211); Described lock-screw (223)) is arranged in the screw (2212); The outside of described briquetting (222) is provided with screw thread (2221); The shape approximation of described breach (2211) and described briquetting (222) is in trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201777987U CN201333539Y (en) | 2008-12-15 | 2008-12-15 | Machine tool chuck clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201777987U CN201333539Y (en) | 2008-12-15 | 2008-12-15 | Machine tool chuck clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201333539Y true CN201333539Y (en) | 2009-10-28 |
Family
ID=41285181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201777987U Expired - Fee Related CN201333539Y (en) | 2008-12-15 | 2008-12-15 | Machine tool chuck clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201333539Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332005A (en) * | 2013-06-26 | 2013-10-02 | 苏州速腾电子科技有限公司 | Transfer printing machine regulating mechanism |
| CN104338944A (en) * | 2014-10-17 | 2015-02-11 | 年福东 | Instrument lathe base device |
| CN109227196A (en) * | 2018-11-13 | 2019-01-18 | 黄建财 | Chipless peeler |
-
2008
- 2008-12-15 CN CNU2008201777987U patent/CN201333539Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332005A (en) * | 2013-06-26 | 2013-10-02 | 苏州速腾电子科技有限公司 | Transfer printing machine regulating mechanism |
| CN103332005B (en) * | 2013-06-26 | 2015-07-22 | 苏州速腾电子科技有限公司 | Transfer printing machine regulating mechanism |
| CN104338944A (en) * | 2014-10-17 | 2015-02-11 | 年福东 | Instrument lathe base device |
| CN109227196A (en) * | 2018-11-13 | 2019-01-18 | 黄建财 | Chipless peeler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101439417B (en) | Device for clamping machine tool chuck | |
| US8690138B2 (en) | Coaxial concentric double-jaw vice | |
| CN107363602B (en) | A kind of gun turret milling machine quick change handle of a knife system | |
| RU2491160C2 (en) | Low-cost multifunctional bench-vice | |
| CN101797744A (en) | Power tool chuck assembly with hammer mechanism | |
| CN104816188B (en) | A kind of lightweight efficient drilling tapping machine | |
| CN201333539Y (en) | Machine tool chuck clamping device | |
| CN107900388B (en) | Flexible processing clamp for automobile hub | |
| CN201095040Y (en) | Ferrule type center frame | |
| CN203695976U (en) | Double-tip mechanism with driving capability for lathe | |
| CN201175942Y (en) | Clamping device of band-sawing machine | |
| CN101402144B (en) | Automatic swiveling turret apparatus for machine tool | |
| CN202517301U (en) | Quick clamping drive plate | |
| CN112207308B (en) | Machining center presss from both sides core device | |
| CN201940670U (en) | Milling power head for combined machine tools | |
| CN201922075U (en) | Device capable of ensuring perpendicularity of hinge pin hole on cylindrical surface | |
| CN201304509Y (en) | Double-action and mechanical reinforcement clamping device | |
| CN201168881Y (en) | Jig | |
| CN210210172U (en) | A kind of spanner | |
| CN203875365U (en) | Centrifugal three-jaw self-centering chuck | |
| CN201960393U (en) | Mechanical clamping force-increasing mechanism for heavy roller lathe | |
| JPH07185986A (en) | Machine tool furnished with tool change device | |
| CN201659549U (en) | Electric hammer quickly clamping mechanism | |
| CN210452083U (en) | Clutch bearing processing equipment | |
| CN102672223A (en) | Mechanical clamping reinforcing mechanism for heavy roll lathe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20131215 |