CN104607980A - High-precision synchronization self-alignment engine-driven clamp - Google Patents
High-precision synchronization self-alignment engine-driven clamp Download PDFInfo
- Publication number
- CN104607980A CN104607980A CN201510064001.7A CN201510064001A CN104607980A CN 104607980 A CN104607980 A CN 104607980A CN 201510064001 A CN201510064001 A CN 201510064001A CN 104607980 A CN104607980 A CN 104607980A
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- Prior art keywords
- thrust block
- clamp body
- block pad
- gear
- jaw
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a high-precision synchronization self-alignment engine-driven clamp. The high-precision synchronization self-alignment engine-driven clamp comprises a clamp body, two rolling guide rails, two pairs of guide rail sliding blocks, a first thrust block, a second thrust block, a first clamping jaw, a second clamping jaw, a first driving mechanism, a second driving mechanism, a first rack, a second rack, a first gear and a second gear, wherein the rolling guide rails are installed on the clamp body side by side, the guide rail sliding blocks are installed on the rolling guide rails, the first thrust block and the second thrust block are installed on the guide rail sliding blocks, the first clamping jaw and the second clamping jaw are installed on the first thrust block and the second thrust block respectively, the first driving mechanism and the second driving mechanism are installed on the clamp body, one end of the first driving mechanism and one end of the second driving mechanism are connected with the first thrust block and the second thrust block respectively, and the first gear and the second gear are meshed with the first rack and the second rack respectively. According to the clamp, the two meshed gears are adopted as a synchronization mechanism, and the two racks are used as a linear moving mechanism, so that the linear motion of the two racks and the rotating motion of the two gears are converted, the relative synchronous motion of the two clamping jaws can achieve clamping, and then synchronous self-alignment workpiece clamping is achieved.
Description
Technical field
The present invention relates to field of machining, be specifically related to the motor-driven fixture of a kind of high-precise synchronization self-centering.
Background technology
At present, machining centralizer structure of the prior art is generally collet, linkage, cam mechanism, cotter mechanism etc. or combines, and fixture form is of all kinds, and pattern is various.But, at present also rare when stressed very greatly, high capacity the High Precision Automatic concentric fixture that uses.Such as: collet mainly adopts hydraulic pressure to draw or the mode that pushes away converts axial force to radial load by inclined-plane, be generally applicable to rotate occasion, axially take up room longer, during pine folder, diameter opening surplus is little, is not easy to load and unload diameter and changes large workpiece; Have connecting rod or cam concentric mechanism gap comparatively large again, intensity is not enough, precision is low, is unsuitable for fine finishining; Cotter mechanism fixture form is by inclined-plane by power conversion or amplification equally, and this mode processing difficulties is difficult to ensure precision, changes jaw inconvenience.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of chucking power large, precision is high, and opening size is large, changes jaw convenient, the motor-driven fixture of high-precise synchronization self-centering that effect of attrition is little.
To achieve these goals, the present invention is by the following technical solutions:
The motor-driven fixture of a kind of high-precise synchronization self-centering, comprises clamp body and is arranged on two cover rolling guides on described clamp body side by side, wherein,
Described often overlapping on rolling guide is symmetrically installed with two guide rail slide blocks be slidably matched with it;
First pair of guide rail slide block of described rolling guide one end is provided with the first thrust block pad, second pair of guide rail slide block of the described rolling guide other end is provided with the second thrust block pad;
Described first thrust block pad is provided with the first jaw, described second thrust block pad is provided with the second jaw, described first jaw and the second jaw form the station of holding workpiece;
Described first thrust block pad is connected with the first driving mechanism be arranged on described clamp body, and described second thrust block pad is connected with the second driving mechanism be arranged on described clamp body;
Described clamp body is provided with the elongated slot for installing tooth bar along described rolling guide direction, and described elongated slot is arranged on the below of described thrust block pad, and described first thrust block pad is connected with the first tooth bar, and described second thrust block pad is connected with the second tooth bar;
The first gear be meshed with described first tooth bar is installed in described clamp body, the second gear be meshed with described second tooth bar is installed in described clamp body, described first gear rotates around the first rotating shaft, described second gear rotates around the second rotating shaft, and described first gear is meshed with the second gear.
Further, described first jaw is removably mounted on described first thrust block pad, and described second jaw is removably mounted on described second thrust block pad.
Further, described first driving mechanism is the first oil cylinder or cylinder or motor, and described second driving mechanism is the second oil cylinder or cylinder or motor.
Further, the first piston bar of described first oil cylinder is connected with described first thrust block pad, and the second piston rod of described second oil cylinder is connected with described second thrust block pad.
Further, the stiff end of described first oil cylinder is arranged on described clamp body by the first stressed key, and the stiff end of described second oil cylinder is arranged on described clamp body by the second stressed key.
Further, the two ends of described first rotating shaft and the second rotating shaft are separately installed with bearing.
Further, described clamp body is horizontal integral cast steel clamp body.
Compared with prior art, the beneficial effect of the motor-driven fixture of high-precise synchronization self-centering of the present invention is:
(1) fixture of the present invention adopts the hydraulic pressure driving such as (or pneumatic, mechanical, motor), and adopt rack-and-pinion and rolling guide-rail pairs (or rail plate, guide rod etc.) to realize high-precise synchronization self-centering function, and then this fixture realizes the clamping work of machining;
(2) rack-and-pinion that the present invention adopts is convenient to manufacture, and bearing capacity is high;
(3) rolling guide of the present invention adopts standard to purchase part, and precision is high;
(4) jaw of the present invention is removably mounted on thrust block pad top, and it is convenient to change;
(5) station of holding workpiece that two jaws of the present invention are formed is the mode of splitting, and opening size is large, is convenient to the workpiece loading and unloading different-diameter;
(6) two jaws of the present invention do synchronous relative movement, and thus frayed impact is less.
Accompanying drawing explanation
Fig. 1 is the structural representation of the motor-driven fixture of high-precise synchronization self-centering of the present invention.
Description of reference numerals
1 clamp body, 2 rolling guides, 3 first thrust block pads, 4 second thrust block pads, 5 first jaws, 6 second jaws, 7 first oil cylinders, 8 second oil cylinders, 10 first tooth bars, 11 second tooth bars, 12 first gears, 13 second gears, 14 first rotating shafts, 15 second rotating shafts, 16 first piston bars, 17 second piston rods, 18 first stressed keys, 19 second stressed keys.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, the motor-driven fixture of high-precise synchronization self-centering of the present invention comprises clamp body 1 and is arranged on two cover rolling guides 2 on clamp body 1 side by side, and in the present embodiment, clamp body 1 adopts horizontal integral cast steel clamp body.Wherein, often overlap on rolling guide 2 and be symmetrically installed with two guide rail slide blocks be slidably matched with it, first pair of guide rail slide block of two cover rolling guide 2 one end is provided with on second pair of guide rail slide block that the first thrust block pad 3, two overlaps rolling guide 2 other end and the second thrust block pad 4 is installed.Those skilled in the art should be understood that rolling guide of the present invention also can be replaced rail plate or guide rod equal accuracy control moving component.
First thrust block pad 3 is provided with the first jaw 5, second thrust block pad 4 is provided with the second jaw 6, first jaw 5 and the second jaw 6 form the station of holding workpiece, in the present embodiment, first jaw 5 and the mode of the second jaw 6 for splitting, opening size is large, is convenient to load and unload diameter and changes large workpiece.In addition, conveniently change jaw, the first jaw 5 is removably mounted on the top of the first thrust block pad 3, and the second jaw 6 is removably mounted on the top of the second thrust block pad 4.
First thrust block pad 3 is connected with the first driving mechanism be arranged on clamp body 1, second thrust block pad 4 is connected with the second driving mechanism be arranged on clamp body 1, driving mechanism can be the driving mechanism that this areas such as oil cylinder, cylinder or motor are commonly used, in the present embodiment, first driving mechanism is the first oil cylinder 7, second driving mechanism is the second oil cylinder 8.The first piston bar 16 of the first oil cylinder 7 is connected with the first thrust block pad 3, second piston rod 17 of the second oil cylinder 8 is connected with the second thrust block pad 4, and the first thrust block pad 3 that first piston bar 16 and the second piston rod 17 promote to be provided with the first jaw 5 respectively under hydraulic action moves along rolling guide 2 with the second thrust block pad 4 being provided with the second jaw 6.The stiff end of the first oil cylinder 7 is arranged on clamp body 1 by the first stressed key 18, and the stiff end of the second oil cylinder 8 is arranged on clamp body 1 by the second stressed key 19.
Clamp body 1 is provided with the elongated slot for installing tooth bar along the direction of rolling guide 2, elongated slot is arranged on the below of thrust block pad, and the first thrust block pad 3 is connected with the first tooth bar 10, and the second thrust block pad 4 is connected with the second tooth bar 11.
The first gear 12 be meshed with the first tooth bar 10 is installed in clamp body 1, the second gear 13 be meshed with the second tooth bar 11 is installed in clamp body 1, first gear 12 rotates around the axis of the first rotating shaft 14, second gear 13 rotates around the axis of the second rotating shaft 15, first gear 12 is meshed with the second gear 13, and the first gear 12 defines the synchronous relative movement mechanism of a set of precision with the tight engagement of the second gear 13.In the present embodiment, the two ends of the first rotating shaft 14 and the second rotating shaft 15 are respectively by bearings.
The manner of execution of the motor-driven fixture of high-precise synchronization self-centering of the present invention is: during non-holding workpiece, the front end logical hydraulic oil (front end oil return) simultaneously of the first oil cylinder 7 and the second oil cylinder 8, under the effect of hydraulic oil, first piston bar 16 and the second piston rod 17 pull the first thrust block pad 3 and the second thrust block pad 4 and the first respective jaw 5 and the second jaw 6 to deviate from mutually along rolling guide 2 respectively and move to home position, during holding workpiece, the rear end logical hydraulic oil (rear end oil return) simultaneously of the first oil cylinder 7 and the second oil cylinder 8, first piston bar 16 and the second piston rod 17 promote the first thrust block pad 3 and the second thrust block pad 4 and the first respective jaw 5 and the second jaw 6 respectively and are moved by holding workpiece to center in opposite directions along rolling guide 2, now, because the first tooth bar 10 be connected with the first thrust block pad 3 is meshed with the first gear 12, and the second tooth bar 11 to be connected with the second thrust block pad 4 is meshed with the second gear 13, when relative motion the first gear 12 engage with the second gear 13 and locking phase to rotation, due to engaging of the first gear 12 and the second gear 13, the first gear 12 is made to keep rotation direction contrary but the state that angle is identical with the rotation of the second gear 13, therefore making respectively can the identical distance of relative movement with the first gear 12 and the first tooth bar 10 that the second gear 13 is meshed and the second tooth bar 11, thus the first thrust block pad 3 and the second thrust block pad 4 and the first respective jaw 5 and the second jaw 6 moment moves identical distance in opposite directions thereupon, so just can eliminate the change of diameter of work size, workpiece is made to be clamped at center all the time.
The motor-driven fixture of high-precise synchronization self-centering of the present invention adopts the first gear 12 and the second gear 13 two pitch wheels as lazy-tongs, adopt the first tooth bar 10 be meshed with the first gear 12 and the second tooth bar 11 be meshed with the second gear 13 as linear moving mechanism, thus the rotary motion of the rectilinear motion of two tooth bars and two gears is converted mutually, rectilinear motion can be constrained each other, the synchronous relative motion of such first jaw 5 and the second jaw 6 can realize clamping, and then can synchronously self-centering clamping work pieces.The motor-driven fixture of high-precise synchronization self-centering of the present invention can be used for the mechanical processing space of the High Precision Automatic centering of high capacity and closes.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. the motor-driven fixture of high-precise synchronization self-centering, is characterized in that, comprises clamp body and is arranged on two cover rolling guides on described clamp body side by side, wherein,
Described often overlapping on rolling guide is symmetrically installed with two guide rail slide blocks be slidably matched with it;
First pair of guide rail slide block of described rolling guide one end is provided with the first thrust block pad, second pair of guide rail slide block of the described rolling guide other end is provided with the second thrust block pad;
Described first thrust block pad is provided with the first jaw, described second thrust block pad is provided with the second jaw, described first jaw and the second jaw form the station of holding workpiece;
Described first thrust block pad is connected with the first driving mechanism be arranged on described clamp body, and described second thrust block pad is connected with the second driving mechanism be arranged on described clamp body;
Described clamp body is provided with the elongated slot for installing tooth bar along described rolling guide direction, and described elongated slot is arranged on the below of described thrust block pad, and described first thrust block pad is connected with the first tooth bar, and described second thrust block pad is connected with the second tooth bar;
The first gear be meshed with described first tooth bar is installed in described clamp body, the second gear be meshed with described second tooth bar is installed in described clamp body, described first gear rotates around the first rotating shaft, described second gear rotates around the second rotating shaft, and described first gear is meshed with the second gear.
2. fixture according to claim 1, is characterized in that, described first jaw is removably mounted on described first thrust block pad, and described second jaw is removably mounted on described second thrust block pad.
3. fixture according to claim 1, is characterized in that, described first driving mechanism is the first oil cylinder or cylinder or motor, and described second driving mechanism is the second oil cylinder or cylinder or motor.
4. fixture according to claim 3, is characterized in that, the first piston bar of described first oil cylinder is connected with described first thrust block pad, and the second piston rod of described second oil cylinder is connected with described second thrust block pad.
5. fixture according to claim 4, is characterized in that, the stiff end of described first oil cylinder is arranged on described clamp body by the first stressed key, and the stiff end of described second oil cylinder is arranged on described clamp body by the second stressed key.
6. fixture according to claim 1, is characterized in that, the two ends of described first rotating shaft and the second rotating shaft are separately installed with bearing.
7. fixture according to claim 1, is characterized in that, described clamp body is horizontal integral cast steel clamp body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064001.7A CN104607980A (en) | 2015-02-06 | 2015-02-06 | High-precision synchronization self-alignment engine-driven clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064001.7A CN104607980A (en) | 2015-02-06 | 2015-02-06 | High-precision synchronization self-alignment engine-driven clamp |
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| CN104607980A true CN104607980A (en) | 2015-05-13 |
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Family Applications (1)
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|---|---|---|---|
| CN201510064001.7A Pending CN104607980A (en) | 2015-02-06 | 2015-02-06 | High-precision synchronization self-alignment engine-driven clamp |
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| CN104875054A (en) * | 2015-05-27 | 2015-09-02 | 李世强 | Workpiece feeding and clamping device for tapping machine |
| CN105834804A (en) * | 2016-05-24 | 2016-08-10 | 山东大学 | Reconfigurable clamp and method suitable for aluminum components of different structures |
| CN105965372A (en) * | 2016-06-24 | 2016-09-28 | 无锡欧诺锁业有限公司 | Automatic correcting polisher |
| CN106001947A (en) * | 2016-05-26 | 2016-10-12 | 山东镭鸣数控激光装备有限公司 | Automatic centering clamp for laser pipe cutter |
| CN106256487A (en) * | 2015-06-17 | 2016-12-28 | Smc株式会社 | Clamping chuck equipment |
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| CN104875054A (en) * | 2015-05-27 | 2015-09-02 | 李世强 | Workpiece feeding and clamping device for tapping machine |
| CN106256487A (en) * | 2015-06-17 | 2016-12-28 | Smc株式会社 | Clamping chuck equipment |
| CN105834804A (en) * | 2016-05-24 | 2016-08-10 | 山东大学 | Reconfigurable clamp and method suitable for aluminum components of different structures |
| CN105834804B (en) * | 2016-05-24 | 2018-03-27 | 山东大学 | A kind of restructural fixture and method suitable for different structure aluminium component |
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Application publication date: 20150513 |