CN202556114U - Hydraulic power fixture of numerically-controlled machine tool - Google Patents
Hydraulic power fixture of numerically-controlled machine tool Download PDFInfo
- Publication number
- CN202556114U CN202556114U CN2012200871174U CN201220087117U CN202556114U CN 202556114 U CN202556114 U CN 202556114U CN 2012200871174 U CN2012200871174 U CN 2012200871174U CN 201220087117 U CN201220087117 U CN 201220087117U CN 202556114 U CN202556114 U CN 202556114U
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- bolt
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Abstract
The utility model discloses a hydraulic power fixture of a numerically-controlled machine tool and belongs to the field of machining. The hydraulic power fixture of the numerically-controlled machine tool comprises an oil cylinder, a pull rod, a transition disk and a fixture body. A pressing plate and a pressing claw shaft meshed with the outer edge of the pressing plate are arranged in an inner cavity of the fixture body. The pressing claw shaft is provided with a guiding groove which is combined with a guiding screw to enable the pressing claw shaft to swing in circumferential direction in the process of axial movement. The hydraulic power fixture of the numerically-controlled machine tool is novel in structure, firm in clamping of shell parts, good in stability, and capable of well ensuring machining precision, shortening auxiliary time of machining of parts, improving work efficiency, and achieving clamping of different parts by means of adjustments of the structure of the pressing claw shaft and the size of a pressing head. Therefore, the hydraulic power fixture of the numerically-controlled machine tool is wide in practical applicability.
Description
Technical field
The utility model relates to the Digit Control Machine Tool apparatus field, relates in particular to a kind of hydraulic power anchor clamps that are used to process the Digit Control Machine Tool of shell part.
Background technology
In machine industry, Digit Control Machine Tool particularly numerically controlled lathe is widely used in processing dish class, axial workpiece.Conventional rotary part adds man-hour; There are many parts to need the cut of carrying out cylindrical, end face, screw thread and axially cutting off as the location clamping area with end face and endoporus; This part processing, particularly cylindrical, end face and screw thread etc. can have many traditional clamping positioning mechanisms to satisfy instructions for use.And process owing to the hole portion that is non-revolved body spare for some shell parts, can't realize with general self-centering clamping mechanism.Traditional method is the process of the operation break-down processing of employing, and the trade union that adds that accomplishes a part uses many process equipments, and therefore, labour intensity is bigger, and part processing is long non-cutting time, and production efficiency is low.The more important thing is, adopt the mode that clamps manually, the uniformity of part processing precision and accessory size is difficult for guaranteeing, is prone to produce waste product and rejected part.
The utility model content
The utility model purpose: the purpose of the utility model provides the dedicated hydraulic power operated jigs and fixtures that are used for processing shell part on the Digit Control Machine Tool that a kind of applicability is wide, stability is high.
Technical scheme: be to realize above-mentioned purpose, the hydraulic power anchor clamps of a kind of Digit Control Machine Tool of the utility model comprise: be located at the main shaft inner chamber oil cylinder and pull bar, the transition disc that is connected with front-end of spindle, be installed in the transition disc front end clamp body, be distributed in the some paw axles on the clamp body inwall and be located at some base steels of clamp body front end, two circular alignment pins and two rhombus alignment pins; Said pull bar front end is equipped with swivel nut, is provided with the bolt that forward end is stretched out in the said swivel nut, and said bolt front end is connected with the platen that is positioned at the clamp body inner chamber, and said bolt is socketed with spacer outward; Said paw axle sidewall is provided with the support slot that is meshed with the platen outer rim; Said paw axle front end is provided with and is used for part by the pressure head that is pressed on the base steel; Said paw jack-post face is provided with spiral gathering sill, and said clamp body inwall is provided with the guider screw that radially embeds gathering sill, and said clamp body inner chamber is provided with enhancement Layer; Said platen outer rim is provided with some semicircle locating slots, and said enhancement Layer surface is provided with some stop pins that are embedded in the locating slot.Circumferential rotation in the time of the axially-movable of paw axle, can take place in the described anchor clamps of the utility model under the cooperation of helical guide slot and guider screw.
The number of said paw axle is corresponding with the base steel number.As the prioritization scheme of the utility model, said paw axle has 3, and said base steel has 3.
Said locating slot is semicircular locating slot, and said locating slot is provided with 3; Said stop pin is provided with 3.
Here need to prove that described pressure head of the utility model and paw axle are one; Said enhancement Layer also is the inner part of clamp body, and the effect of play reinforcement, supporting provides installed surface for stop pin simultaneously.
For clamp body, said clamp body is provided with some screw holes that are used for fixing on transition disc, also is provided with some screw holes that are used for fixing on main shaft on the said transition disc.The number of said screw hole all is 6.
For enhancement Layer, said enhancement Layer is provided with the axis hole of corresponding paw axle number, and the paw axle passes axis hole and keeps enough gaps with axis hole; Said in addition enhancement Layer is provided with the anti-rotation pin-and-hole, is used to install stop pin.
When oil cylinder drive pull bar carries out axially-movable, drive swivel nut, bolt, spacer successively, make platen carry out axially-movable, the platen outer rim drives the paw axle and carries out axially-movable owing to be stuck in the support slot of paw axle.After the pressure head of paw axle stretched into inner cavity of component, paw when axially move the back swing takes place can make pressure head corresponding with base steel, with part by being pressed in steel substrate surface.
Because bolt may make the assembly above the bolt squint in the process of axial displacement; The utility model is on the one hand through being provided with the rotation of stop pin restriction platen; To make whole system be rigid attachment through spacer is set between swivel nut and platen simultaneously, and in addition, the utility model also is located at the bolt front end with the big end of bolt; The big end of bolt is fixed on platen on the spacer backward, is one with close-coupled between swivel nut, bolt, spacer, the platen.
The installation of assembly for ease, the big end end face of said bolt is provided with the inner hexagon spanner hole, is used for bolt is installed in the spacer.
Because the surface error of part itself, platen may produce trace off-centre in clamping process, just has one or even two pressure heads deficiency that grasps to part, influences the stability of anchor clamps clamping parts.In order to tackle this situation, said platen front end face is provided with concave surface, and a spheric washer is installed at said concave surface place, and the big end through bolt is fixed on spheric washer on the platen concave surface; Said bolt front end is provided with and is used for carrying out the floating surface that sphere cooperates with spheric washer.Simultaneously, said spacer, platen, spheric washer are matched in clearance each other, in the process of bolt axially-movable, for unsteady provide of spheric washer on concave surface maybe.Through adopting the leakproof fit float design of sphere, revise the eccentric situation of platen effectively, improved the stability of anchor clamps clampings, improved the precision of processing.
What must explain is; The position of the distribution of the size of the utility model pressure head, paw shaft length and the distribution on platen, base steel, the shape of gathering sill and circular alignment pin and rhombus alignment pin is all by the decision of the concrete structure of part, but still in the protection domain of the utility model.
Beneficial effect: the hydraulic power clamp structure of a kind of Digit Control Machine Tool of the utility model is novel, firm to the shell part clamping, good stability, can guarantee machining accuracy well, shortens the non-cutting time of part processing, has improved operating efficiency; Through adjustment, can realize clamping, so the practicality of these anchor clamps is wide to different parts to paw axle construction and pressure head size.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the anchor clamps end view of the utility model;
Fig. 3 is the cutaway view in A-A cross section among Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done explanation further.
In conjunction with Fig. 1, shown in Figure 3; The hydraulic power anchor clamps of a kind of Digit Control Machine Tool of the utility model comprise: be located at the oil cylinder and the pull bar 2 thereof of main shaft 1 inner chamber, transition disc 3 is installed and main shaft 1 front end, and is fastening through six screws; Clamp body 4 is installed in transition disc 3 front ends, and is fastening through six screws 22.On clamp body 4 inwalls, be distributed with three paw axles 5, be provided with three base steels 6, two circular alignment pins 7 and two rhombus alignment pins 8 at clamp body 4 front ends.Pull bar 2 front ends are equipped with swivel nut 9, are provided with the bolt 10 that forward end is stretched out in the swivel nut 9, and bolt 10 front ends are connected with the platen 11 that is positioned at clamp body 4 inner chambers; Outside bolt 10, be socketed with spacer 12.Spacer 12 front/rear ends are adjacent to platen 11 and swivel nut 10 surfaces respectively.Paw axle 5 sidewalls are provided with the support slot 13 that is meshed with platen 11 outer rims; Paw axle 5 front ends are provided with and are used for part 21 by the pressure head 14 that is pressed on the base steel 6; Paw axle 5 cylinders are provided with spiral gathering sill 15, and clamp body 4 inwalls are provided with the guider screw 16 that radially embeds gathering sill 15, and clamp body 4 inner chambers are provided with enhancement Layer 17; Platen 11 outer rims are provided with three semicircle locating slots 18, and enhancement Layer 17 surfaces are provided with three stop pins 19 that are embedded in the locating slot 18.
Bolt 10 front ends are provided with big end, and big end is fixed on platen 11 on the spacer 12.Bolt 10 big end end faces are provided with inner hexagon spanner hole 23, are used for bolt 10 is installed in the spacer 12.Platen 11 front end faces are provided with concave surface, and a spheric washer 20 is installed at the concave surface place, and bolt 10 front ends are provided with and are used for carrying out the floating surface that sphere cooperates with spheric washer 20.Be matched in clearance between spacer 12, platen 11, the spheric washer 20.
Wherein, the position of the shape of the distribution of the size of pressure head 13, paw axle 5 length and the distribution on platen 11, base steel 6, gathering sill 14 and circular alignment pin 7 and rhombus alignment pin 8 is all determined by the concrete structure of part 21.
Please combine Fig. 1, Fig. 2, shown in Figure 3, when part 21 is carried out clamping, earlier part 21 carried out installing and locating through cylindricality alignment pin 8 and rhombus alignment pin 7, confirm the tram of part 21 in anchor clamps.Oil cylinder drives pull bar 2 and carries out axially-movable forward, drives swivel nut 9 successively, bolt 10 makes platen 11 carry out axially-movable forward, and platen 11 outer rims drive paw axle 5 and carry out axially-movable forward owing to be stuck in the support slot 13 of paw axle 5.Under paw axle gathering sill 15 and the guider screw that is positioned at gathering sill 15 16 interacted, paw axle 5 can circumferentially be swung in axially-movable.After the pressure head of paw axle 5 stretches into part 21 inner chambers, swing takes place when paw axle 5 moves backward can make pressure head 14 just in time corresponding with base steel 6, with part 21 by being pressed in base steel 6 surfaces.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (6)
1. the hydraulic power anchor clamps of a Digit Control Machine Tool is characterized in that comprising: the some base steels (6), two circular alignment pins (7) and two the rhombus alignment pins (8) that be located at oil cylinder and the pull bar (2) thereof of main shaft (1) inner chamber, the transition disc (3) that is connected with main shaft (1) front end, the clamp body (4) that is installed in transition disc (3) front end, are distributed in the some paw axles (5) on clamp body (4) inwall and are located at clamp body (4) front end;
Said pull bar (2) front end is equipped with swivel nut (9); Be provided with the bolt (10) that forward end is stretched out in the said swivel nut (9); Said bolt (10) front end is connected with the platen (11) that is positioned at clamp body (4) inner chamber, the outer spacer (12) that is socketed with of said bolt (10);
Said paw axle (5) sidewall is provided with the support slot (13) that is meshed with platen (11) outer rim, and said paw axle (5) front end is provided with and is used for part by the pressure head (14) that is pressed on the base steel (6);
Said paw axle (5) cylinder is provided with spiral gathering sill (15), and said clamp body (4) inwall is provided with the guider screw (16) that radially embeds gathering sill (15);
Said clamp body (4) inner chamber is provided with enhancement Layer (17), and said platen (11) outer rim is provided with some locating slots (18), and said enhancement Layer (17) surface is provided with some stop pins (19) that are embedded in the locating slot (18).
2. the hydraulic power anchor clamps of a kind of Digit Control Machine Tool according to claim 1, it is characterized in that: said bolt (10) front end is provided with big end, and said big end is fixed on platen (11) on the spacer (12).
3. the hydraulic power anchor clamps of a kind of Digit Control Machine Tool according to claim 1 and 2; It is characterized in that: said platen (11) front end face is provided with concave surface; A spheric washer (20) is installed at said concave surface place, and said bolt (10) front end is provided with and is used for carrying out the floating surface that sphere cooperates with spheric washer (20).
4. the hydraulic power anchor clamps of a kind of Digit Control Machine Tool according to claim 3 is characterized in that: be matched in clearance between said spacer (12), platen (11), the spheric washer (20).
5. the hydraulic power anchor clamps of a kind of Digit Control Machine Tool according to claim 1, it is characterized in that: the number of said paw axle (5) is corresponding with base steel (6) number; Said paw axle (5) has 3, and said base steel (6) has 3.
6. the hydraulic power anchor clamps of a kind of Digit Control Machine Tool according to claim 1, it is characterized in that: said locating slot (18) is semicircular locating slot, and said locating slot (18) is provided with 3; Said stop pin (19) is provided with 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200871174U CN202556114U (en) | 2012-03-09 | 2012-03-09 | Hydraulic power fixture of numerically-controlled machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200871174U CN202556114U (en) | 2012-03-09 | 2012-03-09 | Hydraulic power fixture of numerically-controlled machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202556114U true CN202556114U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200871174U Expired - Fee Related CN202556114U (en) | 2012-03-09 | 2012-03-09 | Hydraulic power fixture of numerically-controlled machine tool |
Country Status (1)
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| CN (1) | CN202556114U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581669A (en) * | 2012-03-09 | 2012-07-18 | 南京工程学院 | Hydraulic power fixture of numerical-control machine tool |
| CN104551799A (en) * | 2015-01-07 | 2015-04-29 | 池州共康汽车零部件有限公司 | Turning clamping device with floating tightener |
| CN104647100A (en) * | 2015-01-07 | 2015-05-27 | 池州共康汽车零部件有限公司 | Turning tightening clamping device |
| CN105522425A (en) * | 2016-01-21 | 2016-04-27 | 中信戴卡股份有限公司 | Lathe chuck plate of aluminum alloy hub |
| CN107127619A (en) * | 2017-06-30 | 2017-09-05 | 天津天海同步科技有限公司 | A kind of hot post-processing recessing fixture of high-precise synchronization device gear ring |
-
2012
- 2012-03-09 CN CN2012200871174U patent/CN202556114U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581669A (en) * | 2012-03-09 | 2012-07-18 | 南京工程学院 | Hydraulic power fixture of numerical-control machine tool |
| CN104551799A (en) * | 2015-01-07 | 2015-04-29 | 池州共康汽车零部件有限公司 | Turning clamping device with floating tightener |
| CN104647100A (en) * | 2015-01-07 | 2015-05-27 | 池州共康汽车零部件有限公司 | Turning tightening clamping device |
| CN105522425A (en) * | 2016-01-21 | 2016-04-27 | 中信戴卡股份有限公司 | Lathe chuck plate of aluminum alloy hub |
| CN107127619A (en) * | 2017-06-30 | 2017-09-05 | 天津天海同步科技有限公司 | A kind of hot post-processing recessing fixture of high-precise synchronization device gear ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20140309 |