CN203650193U - Abrasive belt grinding machine tool - Google Patents
Abrasive belt grinding machine tool Download PDFInfo
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- CN203650193U CN203650193U CN201320828960.8U CN201320828960U CN203650193U CN 203650193 U CN203650193 U CN 203650193U CN 201320828960 U CN201320828960 U CN 201320828960U CN 203650193 U CN203650193 U CN 203650193U
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Abstract
The utility model discloses an abrasive belt grinding machine tool which comprises an X-axis lathe bed, a Y-axis lathe bed, a Z-axis lathe bed, a work table assembly, a grinding head base and a grinding head assembly. According to the abrasive belt grinding machine tool, an abrasive belt winds around an unwinding wheel, a winding wheel, a contact wheel and a middle transition wheel train and can generate the grinding motion of a certain rate under the common effect of the wheel trains. A six-axis linkage mode is adopted for driving the contact wheel, grinding in the longitudinal direction and the transverse direction can be carried out on the condition that work-pieces such as aviation engine blades with complex curved surface structures can only do the feed motion, abrasion patterns generated by grinding in the longitudinal direction can improve the mechanical property such as the fatigue strength of the work-pieces, and the good machining effect can be obtained. By means of the six-axis linkage control mode, other parts such as roots of the blades and the edges of the curved surfaces of the work-pieces with the complex curved surface structures can be machined.
Description
Technical field
The utility model belongs to Sand Band Grinding Technique field, is specifically related to a kind of belt-sanding lathe.
Background technology
Sand Band Grinding Technique is to utilize the abrasive band of carrying out grinding motion as grinding tool, machined object surface to be carried out the technology of grinding and polishing, it is a kind of elastic process, have the incomparable advantage of many other manufacturing process, aspect some special workpiece processing, it has irreplaceable effect.Along with the fast development of Sand Band Grinding Technique and device, belt-sanding lathe has developed into that a kind of working (machining) efficiency is high, strong adaptability, applied range, use cost are low, the finish machining equipment of easy-to-operate.Particularly there is complex-curved thin-wall construction part for processing as blade of aviation engine etc., the attrition process of junction between undersized complex profile, face, its advantage is particularly evident.Generally, belt-sanding lathe is to drive abrasive band to move by drive unit, regulating wheel by some, by abrasive band tensioning, provides pressure produce the contact to workpiece and form cutting angle by contact wheel or support plate, completes the attrition process to workpiece.
In China, relative backward due to grinding technique and lapping device, and thering is the unworkability of the workpiece on complex geometric shapes surface, the attrition process of this class workpiece (as the polymorphic structure such as blade of aviation engine and turbine blade workpiece) is undertaken by artificial hand-held process tool or workpiece often.Although such method can complete complex-curved grinding and polishing to a certain extent, but crudy is because operating personnel's self-condition is uneven, the workpiece quality management and control difficulty that often causes processing, precision is lower, profile is second-rate, homogeneity of product is difficult to ensure.Meanwhile, the blade of aviation engine that conventional method grinding obtains, its surfacing lines mostly is horizontal lines, and research surface, if blade has longitudinal lines, the more traditional grinding blade of its fatigue strength will have greatly improved.
In order to realize the extensive use of Sand Band Grinding Technique at complex surface machining, correlative study has been done to accurate belt-sanding characteristic, the servo-actuated grinding in crank-shaft link neck abrasive band, marine propeller blade and blade of aviation engine sbrasive belt grinding in University Of Chongqing, Chongqing City Surface precision machining and equipment Engineering Research Center.In addition, Jilin University has carried out relevant exploration to free form surface belt-sanding, the two-sided sbrasive belt grinding technique of blade, the Central China University of Science and Technology also to wheel hub complex-curved sbrasive belt grinding carried out correlative study.
But, the achievement of above-mentioned research not yet forms the attrition process of good belt-sanding device complex surface polymorphic structure workpiece taking blade of aviation engine as representative with reply, domestic also not yet application can process the sanding belt special lapping device of this type of workpiece, thereby the mechanical properties such as its fatigue strength of demand improve to(for) blade of aviation engine longitudinal grinding also cannot meet.From larger scope, for some special parts, adding can not fast rotational can not carry out grinding with the cutter of high-speed motion again man-hour time, present stage can only be carried out inefficient manual grinding.
Summary of the invention
For the deficiencies in the prior art, it is a kind of for complex-curved belt-sanding device that the utility model provides, it can meet not fast rotational of workpiece in the time that processing has complex surface polymorphic structure workpiece, and abrasive band does not have the processing request under the condition of higher cutting speed.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of belt-sanding lathe, comprises X-axis lathe bed, Y-axis lathe bed, Z axis lathe bed, table assembly, head holder and grinding head assembly.
One end of described X-axis lathe bed upper surface is provided with two X-axis guide rails along X-direction is parallel; The mode that the bottom of Z axis lathe bed coordinates with single-degree-of-freedom by X-axis sliding bottom is slidably mounted on X-axis guide rail; Y-axis lathe bed is arranged on the other end of X-axis lathe bed upper surface, is provided with two Y-axis guide rails at Y-axis lathe bed upper surface along Y direction is parallel, and the mode that table assembly coordinates with single-degree-of-freedom by Y-axis sliding bottom is slidably mounted on Y-axis guide rail.
On described Z axis lathe bed and towards a side of Y-axis lathe bed 3 is parallel, be provided with two Z axis guide rails, the mode that Z axis sliding bottom coordinates with single-degree-of-freedom is slidably mounted on Z axis guide rail, on Z axis sliding bottom, be provided with arc-shaped guide rail, on this arc-shaped guide rail, arc-shaped rack be installed; The lower end of described head holder is hinged on Z axis sliding bottom, and the upper end of head holder is slidably mounted on arc-shaped guide rail; Described grinding head assembly is hinged on head holder.
Described grinding head assembly comprises bistrique frame, winding wheel, unreeling wheel, fork, floating axle, contact lever and abrasive band; Described winding wheel and unreeling wheel are symmetricly set on bistrique frame; The center hinge of fork is connected on the medium line of bistrique frame, and the two ends of fork are respectively equipped with directive wheel; The lower end of contact lever is provided with contact wheel, and the upper end of contact lever is connected with the lower end of floating axle, and the upper end of floating axle is fixed on bistrique frame; Between contact wheel and directive wheel, be provided with regulating wheel, between regulating wheel and directive wheel, be provided with transition wheel a, between regulating wheel and contact wheel, be provided with transition wheel b, regulating wheel, transition wheel a and transition wheel b are plural even numbers and are symmetrical arranged with respect to bistrique frame medium line; Described abrasive band is wrapped on unreeling wheel with the form of the roll coil of strip, and rolling out after end is walked around transition wheel a, directive wheel, regulating wheel, transition wheel b and contact wheel of abrasive band is wrapped on unreeling wheel.
Adopt technical solution of the present invention, there is following beneficial effect:
In the utility model, abrasive band is wrapped in unreeling wheel, winding wheel, contact wheel and middle transition wheel and fastens, and under the acting in conjunction of these trains, abrasive band can produce the grinding motion of given pace.Mode by six-axis linkage drives contact wheel, this method can realize the workpiece that blade of aviation engine etc. has complex-curved structure and only do under the condition of feed motion, carry out the grinding of both direction in length and breadth, and the mill line that longitudinal grinding machining produces can improve the mechanical properties such as the fatigue strength of workpiece, obtain good processing effect.By the control mode of six-axis linkage, can also realize other positions of workpiece of complex-curved structure as the processing at edge of the root of blade, curved surface etc.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that Fig. 1 is along A to view.
Fig. 3 is key structure (grinding head assembly) schematic diagram.
Fig. 4 is that Fig. 3 is along B to view.
Wherein, 1 is X-axis lathe bed 1, 2 is y-axis motor, 3 is Y-axis lathe bed, 4 is table assembly, 5 is grinding head assembly, 6 is head holder motor, 7 is head holder, 8 is grinding head assembly motor, 9 is Z axis motor, 10 is Z axis lathe bed, 11 is Z axis sliding bottom, 12 is X-axis sliding bottom, 13 is X-axis guide rail, 14 is X-axis motor, 15 is Y-axis sliding bottom, 16 is workbench motor, 17 is fixture, 18 is arc-shaped guide rail, 19 is arc-shaped rack, 20 is hinge a, 21 is workpiece to be machined, 22 is Z axis guide rail, 23 is Y-axis guide rail, 24 is contact wheel, 25 is transition wheel b, 26 is regulating wheel, 27 is transition wheel a, 28 is directive wheel, 29 is winding wheel, 30 is hinge b, 31 is unreeling wheel, 32 is pendulum thick stick, 33 is bistrique frame, 35 is floating axle, 38 is contact lever, 39 is abrasive band.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, belt-sanding lathe, comprises X-axis lathe bed 1, Y-axis lathe bed 3, Z axis lathe bed 10, table assembly 4, head holder 7 and grinding head assembly 5.
Be provided with two X-axis guide rails 13 in one end of X-axis lathe bed 1 upper surface along X-direction is parallel, on X-axis guide rail 13, be slidably fitted with X-axis sliding bottom 12, this X-axis sliding bottom 12 coordinates with X-axis guide rail 13 single-degree-of-freedoms, X-axis sliding bottom 12 can drive ball-screw to drive by X-axis motor 14, on X-axis guide rail 13, slides.The bottom of Z axis lathe bed 10 is arranged on X-axis sliding bottom 12, and Z axis lathe bed 10 can slide on X-axis guide rail 13.
Y-axis lathe bed 3 is arranged on the other end of X-axis lathe bed 1 upper surface, be provided with two Y-axis guide rails 23 at Y-axis lathe bed 3 upper surfaces along Y direction is parallel, on Y-axis guide rail 23, be slidably fitted with Y-axis sliding bottom 15, this Y-axis sliding bottom 15 coordinates with Y-axis guide rail 23 single-degree-of-freedoms, in Y-axis lathe bed 3 rear ends, y-axis motor 2 is housed, y-axis motor 2 drives leading screw that Y-axis sliding bottom 15 is slided along Y-axis guide rail 23.Table assembly 4 is arranged on Y-axis sliding bottom 15, and table assembly 4 can slide on Y-axis guide rail 23.
On Z axis lathe bed 10 and towards a side of Y-axis lathe bed 3 is parallel, be provided with two Z axis guide rails 22, the mode that Z axis sliding bottom 11 coordinates with single-degree-of-freedom is slidably mounted on Z axis guide rail 22.Z axis motor 9 is arranged on the top of Z axis lathe bed 10, and Z axis motor 9 is by driving leading screw that Z axis sliding bottom 11 is slided along Z-direction.On Z axis sliding bottom 11, be provided with arc-shaped guide rail 18, arc-shaped guide rail 18 is single track, and arc-shaped rack 19 is installed on arc-shaped guide rail 11.The lower end of head holder 7 is hinged on Z axis sliding bottom 11 by hinge a20, and the upper end of head holder 7 is slidably mounted on arc-shaped guide rail 18.Grinding head assembly motor 8 is installed on head holder 7, and this grinding head assembly motor 8 drives grinding head assembly 5 centered by hinge a20 by drive transmission, rotates, thereby realize the rotational freedom of grinding head assembly 5 around Y direction along arc-shaped guide rail 18.
The free degree of rotating around Z axis in order to realize grinding head assembly 5, in the present embodiment, grinding head assembly 5 is hinged by hinge b30 and head holder 7, the back side in the lower end of head holder is provided with gear, head holder motor 6 drives the gear of head holder lower end to rotate, gear engages with the arc-shaped rack 19 at head holder 7 back sides, upper end, thereby realizes the rotation of grinding head assembly 5 around hinge b30.
Referring to Fig. 3 and Fig. 4, grinding head assembly 5 comprises bistrique frame 33, winding wheel 29, unreeling wheel 31, fork 32, floating axle 35 and contact lever 38.Winding wheel 29 and unreeling wheel 31 are symmetricly set on bistrique frame 33.Fork 32 is straight bar structure, and the center hinge of fork 32 is connected on bistrique frame 33 and is positioned at the medium line position of bistrique frame 33, is adding man-hour, and fork 32 is zero with the relative motion of grinding head assembly.The two ends of fork 32 are respectively equipped with directive wheel 28.The lower end of contact lever 38 is provided with contact wheel 24, the upper end of contact lever 38 is connected with floating axle 35, the upper end of floating axle 35 is fixed on bistrique frame 33, floating axle 35 is connected with the bar of cylinder in pneumatic means, adding man-hour, by regulating the air pressure of pneumatic means, thereby ensure that floating axle is in the time of processed complex curved surface, the constant pressure that abrasive band contacts with workpiece to be machined.Between contact wheel 24 and directive wheel 28, be provided with regulating wheel 26, between regulating wheel 26 and directive wheel 28, be provided with transition wheel a27, between regulating wheel 26 and contact wheel 24, be provided with transition wheel b25, regulating wheel 26 is plural even numbers and is symmetrical arranged with respect to bistrique frame 33 medium lines.In the present embodiment, regulating wheel 26, transition wheel a27 and transition wheel b25 are two.
Grinding head assembly 5 entirety are taking contact lever 38, laterally the straight line at place, fork 32 center is arranged as axial symmetry.
Add man-hour, workpiece is clamped by work piece holder, is positioned at the below of contact wheel, and contact wheel is driven by the six-axis linkage mode of lathe, in the upper surface motion of workpiece, workpiece is carried out to grinding.
In the present embodiment, when the abrasive band that participates in processing is because wearing and tearing or other reasons are need to change time, unreeling wheel 31 clockwise rotates, and winding wheel 29 rotates counterclockwise, and one section of new abrasive band can be exposed, and coil back in old abrasive band.
The utility model adds that by six-freedom degree the effect of floating axle 37 realizes the grinding processing to complex curved surface part, and due to special grinding motion form, under applicable feeding Parameter Conditions, can realize plain grinding lathe and in this type of workpiece of processing, be difficult for the longitudinal grinding of realizing.
Six-freedom degree is: Z axis lathe bed is arranged on X-axis guide rail by X-axis sliding bottom, realizes Z axis lathe bed moving axially in X-direction; The work piece holder of table assembly 4 is driven by workbench motor 16, realizes the rotational freedom of work piece holder around X-axis; Table assembly 4 slides on Y-axis guide rail 23, realizes workpiece moving axially in Y direction; Grinding head assembly 5 is driven centered by hinge a20 by grinding head assembly motor 8, rotates, thereby realize the rotational freedom of grinding head assembly 5 around Y direction along arc-shaped guide rail 18; Z axis sliding bottom is slidably mounted on Z axis guide rail, realizes Z axis sliding bottom moving axially in Z-direction; Grinding head assembly 5 is hinged by hinge b30 and head holder 7, is driven, thereby realize the rotation of grinding head assembly 5 around hinge b30 by head holder motor 6.In the present embodiment, contact wheel 24 and supporting construction thereof (supporting construction is to block the support of contact wheel) are arranged on contact lever 38 with removably, can be as required, suitably change different contact wheels 24, apply less contact wheel 24, can grinding root of blade and other narrow part positions, be applicable to the grinding of obform body.
In the present embodiment, Work conveying apparatus, guard shield, electric device and digital control system are also comprised.In each free degree kinematic pair, be all provided with limit switch at extreme position, strainer (two pairs of regulating wheels) and floating axle are also provided with pneumatic means, the air intake duct of pneumatic means is provided with air inlet electromagnetic valve, the controlling organization of described intake valve is connected to digital control system, and the interlock control of each free degree is also realized by digital control system.
Finally it should be noted that, above embodiment is only in order to the technical solution of the utility model to be described but not restriction technologies scheme, although applicant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or are equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (6)
1. a belt-sanding lathe, is characterized in that, comprises X-axis lathe bed (1), Y-axis lathe bed (3), Z axis lathe bed (10), table assembly (4), head holder (7) and grinding head assembly (5);
One end of described X-axis lathe bed (1) upper surface is along the parallel two X-axis guide rails (13) that are provided with of X-direction; The mode that the bottom of Z axis lathe bed (10) coordinates with single-degree-of-freedom by X-axis sliding bottom (12) is slidably mounted on X-axis guide rail (13); Y-axis lathe bed (3) is arranged on the other end of X-axis lathe bed (1) upper surface, at Y-axis lathe bed (3) upper surface, along the parallel two Y-axis guide rails (23) that are provided with of Y direction, the mode that table assembly (4) coordinates with single-degree-of-freedom by Y-axis sliding bottom (15) is slidably mounted on Y-axis guide rail (23);
Upper and towards the parallel two Z axis guide rails (22) that are provided with of a side of Y-axis lathe bed (3) at described Z axis lathe bed (10), the mode that Z axis sliding bottom (11) coordinates with single-degree-of-freedom is slidably mounted on Z axis guide rail (22), on Z axis sliding bottom (11), be provided with arc-shaped guide rail (18), arc-shaped rack (19) is installed on this arc-shaped guide rail (18); It is upper that the lower end of described head holder (7) is hinged on Z axis sliding bottom (11), and the upper end of head holder (7) is slidably mounted on arc-shaped guide rail (18); Described grinding head assembly (5) is hinged on head holder (7);
Described grinding head assembly (5) comprises bistrique frame (33), winding wheel (29), unreeling wheel (31), fork (32), floating axle (35), contact lever (38) and abrasive band (39); Described winding wheel (29) and unreeling wheel (31) are symmetricly set on bistrique frame (33); The center hinge of fork (32) is connected on the medium line of bistrique frame (33), and the two ends of fork (32) are respectively equipped with directive wheel (28); The lower end of contact lever (38) is provided with contact wheel (24), and the upper end of contact lever (38) is connected with the lower end of floating axle (35), and the upper end of floating axle (35) is fixed on bistrique frame (33); Between contact wheel (24) and directive wheel (28), be provided with regulating wheel (26), between regulating wheel (26) and directive wheel (28), be provided with transition wheel a(27), between regulating wheel (26) and contact wheel (24), be provided with transition wheel b(25), regulating wheel (26), transition wheel a(27) and transition wheel b(25) be plural even numbers and be symmetrical arranged with respect to bistrique frame (33) medium line; It is upper that described abrasive band (39) is wrapped in unreeling wheel (31) with the form of the roll coil of strip, and the end that rolls out of abrasive band (39) is walked around transition wheel a(27), directive wheel (28), regulating wheel (26), transition wheel b(25) and contact wheel (24) after be wrapped on unreeling wheel (31).
2. belt-sanding lathe according to claim 1, it is characterized in that, described table assembly (4) comprises brace table and work piece holder (17), the lower end of brace table is arranged on Y-axis sliding bottom (15), one end of work piece holder (17) is arranged on the upper end of brace table, the other end be can holding workpiece clamping part.
3. belt-sanding lathe according to claim 2, is characterized in that, the retaining part of described work piece holder (17) is in the below of contact wheel (24).
4. belt-sanding lathe according to claim 1, is characterized in that, the dismountable lower end that is arranged on contact lever (38) of described contact wheel (24).
5. belt-sanding lathe according to claim 1, is characterized in that, described arc-shaped guide rail (18) is single track.
6. belt-sanding lathe according to claim 1, it is characterized in that, the lower end of described head holder (7) is by hinge a(20) be hinged on Z axis sliding bottom (11), soffit at head holder (7) is provided with gear, and this gear engages with the arc-shaped rack (19) that is positioned at head holder (7) back side, upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828960.8U CN203650193U (en) | 2013-12-17 | 2013-12-17 | Abrasive belt grinding machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828960.8U CN203650193U (en) | 2013-12-17 | 2013-12-17 | Abrasive belt grinding machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203650193U true CN203650193U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320828960.8U Expired - Fee Related CN203650193U (en) | 2013-12-17 | 2013-12-17 | Abrasive belt grinding machine tool |
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| Country | Link |
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| CN (1) | CN203650193U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216716A (en) * | 2016-09-08 | 2016-12-14 | 沈阳航空航天大学 | A kind of swing type knife rest that can reduce the turning insert rate of wear |
| CN106584243A (en) * | 2016-12-30 | 2017-04-26 | 台州北平机床有限公司 | High-precision external circle polishing grinder |
| CN115805495A (en) * | 2023-01-19 | 2023-03-17 | 扬州禧德制造技术有限公司 | Grinding processing equipment |
-
2013
- 2013-12-17 CN CN201320828960.8U patent/CN203650193U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216716A (en) * | 2016-09-08 | 2016-12-14 | 沈阳航空航天大学 | A kind of swing type knife rest that can reduce the turning insert rate of wear |
| CN106216716B (en) * | 2016-09-08 | 2018-12-18 | 沈阳航空航天大学 | A kind of swing type knife rest can reduce the turning insert rate of wear |
| CN106584243A (en) * | 2016-12-30 | 2017-04-26 | 台州北平机床有限公司 | High-precision external circle polishing grinder |
| CN115805495A (en) * | 2023-01-19 | 2023-03-17 | 扬州禧德制造技术有限公司 | Grinding processing equipment |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20181217 |