CN201711885U - Self-centering clamping device for cylinders - Google Patents
Self-centering clamping device for cylinders Download PDFInfo
- Publication number
- CN201711885U CN201711885U CN 201020261990 CN201020261990U CN201711885U CN 201711885 U CN201711885 U CN 201711885U CN 201020261990 CN201020261990 CN 201020261990 CN 201020261990 U CN201020261990 U CN 201020261990U CN 201711885 U CN201711885 U CN 201711885U
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- clamp
- screw rod
- double
- polished rod
- guide rail
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Abstract
The utility model discloses a self-centering clamping device for cylinders. The device comprises a clamp, a locking handle, a clamp seat, a base and the like, wherein rollers are mounted on the clamp; a feed screw nut meshed with a dual-head screw rod is assembled at the bottom of the clamp seat; a guide rail with a polished rod and a linear bearing are respectively mounted on two sides of the double-ended screw rod; the tail end of the guide rail is connected to a guide rail seat with a polished rod through the linear bearing; the tail end of the double-ended screw rod is connected with a motor through a bearing support; the other end of the double-ended screw rod is connected to bearing supports with bearings; the bearing supports and the guide rail seat are mounted on the base on two sides; the threads at one end of the double-ended screw rod are left-hand threads, and those at the other end of the double-ended screw rod are right-hand threads; and screw rod nuts matched with the threads at the two ends of the double-ended screw rod are mounted at the two ends respectively. When the motor is started, the double-ended screw rod is driven to rotate, the screw rod nuts move in the same direction due to the meshing function of the threads, so that the clamp seat and the rollers on the device are driven to get close mutually. The utility model is suitable for cylindrical workpieces rotating at middle/low speed, and meets clamping requirements without influencing the self-rotation of the cylindrical workpieces.
Description
Technical field
The utility model relates to a kind of cylinder self-alignment cramping arrangement, particularly a kind of cylinder self-alignment cramping arrangement in self axle rotation.
Background technology
Workpiece clamping device commonly used is flat-nose pliers (claiming vice again), is widely used on lathe and other work tops.During work, the unidirectional leading screw on the flat-nose pliers rotates and drives feed screw nut and produces relative screw, thereby makes the step drive caliper of leading screw one end move, and cooperates with the stationary plane of the other end and realizes clamping or release function.Cylindrical workpiece is done rotatablely moving of angle of stability speed around self axle often under work or machining state.Flat-nose pliers is loaded onto V-block can realize cylindrical fixing to clamp, but the cylinder that can't solve in the rotation clamps spacing problem.The scroll chuck that adopts on the lathe can near clamp cylinders body and self-centering end face, but the chuck structure complexity, cost of manufacture is higher, and is unsuitable for large scale cylinder object.
The utility model content
Task of the present utility model provides a kind of fast automatic centering and clamping device, and the cylindrical workpiece of low speed rotation had both satisfied the clamping demand in being applicable to, does not influence self rotating of cylindrical workpiece again.
The utility model is achieved in that and comprises clamp, lock handle, the clamp seat, base, it is characterized in that also comprising linear bearing, bearing block, motor, pressure sensor, roller, a left side, the dextrorotation feed screw nut, the double end screw mandrel, the polished rod guide rail, the polished rod track base, wherein, described roller is mounted on the described clamp, described clamp is mounted on the described clamp seat, the two ends screw thread of described double end screw mandrel is processed into left-handed and dextrorotation respectively, the described left side with threaded engagement is installed at two ends respectively, the dextrorotation feed screw nut, a described left side, the dextrorotation feed screw nut is arranged on the bottom of described clamp seat, the both sides of described double end screw mandrel are separately installed with described polished rod guide rail and described linear bearing, the tail end of described polished rod guide rail connects described polished rod track base by described linear bearing, the tail end of described double end screw mandrel connects described motor by described bearing block, the other end connects the described bearing block that has bearing, described bearing block and described polished rod track base all are installed in respectively on the described base in both sides, and described pressure sensor also is installed on described clamp.
Described bearing block divides leading portion, back segment, slottedly at described back segment middle part is used to install described lock handle.
Described roller can be around self axle rotation.
Two pairs up and down of described clamp settings, its relative position can be adjusted by the installation locating hole of described clamp seat, and its parameter size is pressed the measured workpiece size and is adjusted.
Described motor is a servomotor.
Described base is provided with the locating hole of different sizes.
The utility model has been owing to adopted above-mentioned structure, during work, and the rotation of motor-driven double end screw mandrel, left and right nut is rotated along the screw thread at two ends and moves, and produces move toward one another thereby drive clamp.When clamp touched cylindrical workpiece, the impetus of clamp was the roller that is positioned at tong chops, and the pressure sensor of installing on the clamp can be judged clamp and be in stress, the stall of control motor.Roller can be around self axle rotation, and tangent motion is done with the cylinder that is rotating in the contact back under the frictional force effect, thereby can not influence the rotation of cylindrical workpiece.
Because clamping device has adopted the double end screw mandrel, and the feed screw nut move distance at two ends is identical during work, thereby can realize the self-centering function, the cylinder axle center overlaps with the Clamping Center when guaranteeing to clamp in addition.Simultaneously, bidirectional-movement can make speed double.
In sum, the utility model product can clamp the cylindrical workpiece that rotatablely moves automatically, and has the self-centering function, and is rapidly and efficiently, time saving and energy saving.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is rotation of the utility model cylindrical workpiece and roller 6 rotation schematic diagrames.
Fig. 3 is the structural representation of the utility model bearing block 4.
Among the figure 1, clamp 2, linear bearing 3, lock handle 4, bearing block 5, motor 6, roller 7, pressure sensor 8, dextrorotation feed screw nut 9, double end screw mandrel 10, clamp seat 11, polished rod guide rail 12, left-handed feed screw nut 13, bearing block 14, polished rod track base 15, base 16, leading portion 17, slit 18, back segment 19, mounting groove 20, through hole
The specific embodiment
Be described further below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of cylinder self-alignment cramping arrangement comprises clamp 1, and roller 6 is housed on the clamp 1, and clamp 1 is installed on the clamp seat 10.Clamp seat 10 bottoms are furnished with left and right sides feed screw nut 12,8, feed screw nut 12,8 and double end screw mandrel 9 mesh, the both sides of double end screw mandrel 9 are installed a polished rod guide rail 11 and linear bearing 2 respectively, the tail end of polished rod guide rail 11 connects polished rod track base 14 by linear bearing 2, tail end one end of double end screw mandrel 9 connects motor 5 by bearing block 4, the related bearing block 13 that bearing is arranged of the other end, bearing block 4,13 and polished rod track base 14 are installed on the base 15 of both sides, bearing block 4 sides are equipped with lock handle 3, and pressure sensor 7 is installed on the clamp 1.The two ends screw thread of double end screw mandrel 9 is respectively left-handed and dextrorotation, and each end is installed the feed screw nut 12,8 with threaded engagement.During work, starter motor 5 drives 9 rotations of double end screw mandrel, feed screw nut 12,8 motion in the same way owing to the screw-threaded engagement effect, thus the clamp seat 10 that drives on it is drawn close mutually.The slip of clamp seat 10 adopts polished rod guide rail 11 to cooperate linear bearing 2, and guidance quality is good.Behind the clamping work pieces, actual contact point is a roller 6.Because clamping device has adopted double end screw mandrel 9, feed screw nut's 12,8 move distances at two ends are identical during work, thereby can realize the self-centering function, and the cylinder axle center overlaps with the Clamping Center when guaranteeing to clamp.Be in the clamp 1 of clamped condition, pressure can be passed to pressure sensor 7, and signal is transferred to control system.Control system to servomotor 5, makes its stall with signal feedback.Manually tighten rotating handles 3, can dwindle bearing block 4 back segment slit gaps, bearing block 4 clamps double end screw mandrel 9 and realizes anti-rotation.When needing the unloading cylindrical workpiece, starter motor 5 counter-rotatings drive 9 reverse rotations of double end screw mandrel, and feed screw nut 12,8 is because screw-threaded engagement effect and counter motion, thus drive clamp seat 10 on it and roller 6 mutually away from, realize the unloading of cylindrical workpiece.
For steady clamping work pieces, clamp 1 design altogether has two groups, has enlarged the axial action scope to workpiece, makes clamping more reliable and more stable.Distance between two groups of clamps also can be adjusted because the installing hole on clamp seat 10 have two groups in addition (among the figure not label) available, the user can adjust the relative distance of two groups of clamps according to actual needs.
As shown in Figure 2, behind the clamp cylinders body workpiece, actual contact point is a roller 6.At this moment, cylindrical workpiece is if be in rotation status E, roller 6 is being done tangent motion owing under the frictional force effect with the cylinder that is rotating after the contact, and promptly the A among Fig. 2, B, four of C, D rotatablely move, thereby guarantee still can keep under clamped condition the rotation of cylindrical workpiece.
The structure of bearing block 4 as shown in Figure 3.Bearing block 4 can be divided into leading portion 16 and back segment 18, and the centre is separated by slit 17, and the shoulder hole of leading portion 16 is a bearing mounting groove 19, and back segment 18 perforates 20 are common through hole, and through hole 20 slightly larger in diameter are in the axle head external diameter of double end leading screw 9.During installation, the axle head of double end screw mandrel 9 is packed into by leading portion 16, and extends back segment 18.Bearing and screw mandrel tight fit in the leading portion 16, there are minim gap in screw mandrel 9 external parts and through hole 20.During work, the rotation of double end screw mandrel 9 is by the bearings that is loaded in the mounting groove 19, and back segment 18 is not because the existence in gap can interfere with screw mandrel 9.When clamp 1 moves to desired location, motor 5 and screw mandrel 9 stalls, twistlock handle 3, handle 3 passes through screw advancement, dwindle the gap of slit 17, thereby dwindle the diameter of through hole 20, make the back segment 18 of bearing block 4 closely cooperate with double end screw mandrel 9, realize the anti-rotation of double end screw mandrel 9, guaranteed the clamping of clamp 1,6 pairs of workpiece of roller.
The cylindrical workpiece of the utility model in the rotation be as target, neither affects in the situation of workpiece rotating guaranteeing, realized self-centering and clamped spacing function to have reliable and stable, easy to operate fast characteristics.
Claims (6)
1. cylinder self-alignment cramping arrangement, comprise clamp (1), lock handle (3), clamp seat (10), base (15), it is characterized in that also comprising linear bearing (2), bearing block (4), (13), motor (5), pressure sensor (7), roller (6), a left side, dextrorotation feed screw nut (12), (8), double end screw mandrel (9), polished rod guide rail (11), polished rod track base (14), wherein, described roller (6) is mounted on the described clamp (1), described clamp (1) is mounted on the described clamp seat (10), the two ends screw thread of described double end screw mandrel (9) is processed into left-handed and dextrorotation respectively, the described left side with threaded engagement is installed at two ends respectively, dextrorotation feed screw nut (12), (8), a described left side, dextrorotation feed screw nut (12), (8) be arranged on the bottom of described clamp seat (10), the both sides of described double end screw mandrel (9) are separately installed with described polished rod guide rail (11) and described linear bearing (2), the tail end of described polished rod guide rail (11) connects described polished rod track base (14) by described linear bearing (2), the tail end of described double end screw mandrel (9) connects described motor (5) by described bearing block (4), the other end connects the described bearing block (13) that has bearing, described bearing block (4), (13) all be installed in respectively on the described bases in both sides (15) with described polished rod track base (14), described pressure sensor (7) also is installed on described clamp (1).
2. cylinder self-alignment cramping arrangement according to claim 1, its feature is divided leading portion (16), back segment (18) at described bearing block (4), is used to install described lock handle (3) at described back segment (18) middle part slotted (17).
3. according to the described cylinder self-alignment cramping arrangement of claim 1, it is characterized in that described roller (6) is can be around the roller of self axle rotation.
4. cylinder self-alignment cramping arrangement according to claim 1, it is characterized in that described clamp (1) is provided with two pairs up and down, its relative position can be adjusted by the installation locating hole of described clamp seat (10), and its parameter size is pressed the measured workpiece size and adjusted.
5. cylinder self-alignment cramping arrangement according to claim 1 is characterized in that described motor (5) is a servomotor.
6. cylinder self-alignment cramping arrangement according to claim 1 is characterized in that described base (15) is provided with the installing hole of different orientation distances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020261990 CN201711885U (en) | 2010-07-16 | 2010-07-16 | Self-centering clamping device for cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020261990 CN201711885U (en) | 2010-07-16 | 2010-07-16 | Self-centering clamping device for cylinders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201711885U true CN201711885U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020261990 Expired - Lifetime CN201711885U (en) | 2010-07-16 | 2010-07-16 | Self-centering clamping device for cylinders |
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| CN (1) | CN201711885U (en) |
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-
2010
- 2010-07-16 CN CN 201020261990 patent/CN201711885U/en not_active Expired - Lifetime
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