CN204912882U - A device for milling flutes of sheave cam slot - Google Patents
A device for milling flutes of sheave cam slot Download PDFInfo
- Publication number
- CN204912882U CN204912882U CN201520602090.1U CN201520602090U CN204912882U CN 204912882 U CN204912882 U CN 204912882U CN 201520602090 U CN201520602090 U CN 201520602090U CN 204912882 U CN204912882 U CN 204912882U
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- fork
- cam
- sector gear
- groove milling
- groove
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Abstract
The utility model discloses a compact structure's a device for milling flutes of sheave cam slot, including work piece positioning mechanism, milling flutes mechanism and power unit, power unit includes the camshaft that drives through power, is equipped with first cam, second cam and third cam on the camshaft in proper order, the shape face of first cam and the excircle of pendulum rod one end offset, and first pendulum rod drives the centering block, and the terminal surface of this centering block be the corrugated surface, the one end of second pendulum rod and the corrugated surface offsets, and the middle part of second pendulum rod articulates at vertical braces epaxially, the other end of second pendulum rod is used for promoting milling flutes mechanism and moves in Z axle orientation, the shape face of second cam and the excircle of a third pendulum rod one end offset, and the third pendulum rod drives sector gear, with the rack that is equipped with of sector gear meshing, the shape face of third cam and the excircle of fourth pendulum rod one end offset, and the fourth pendulum rod drives the 2nd sector gear, lifting rack and the meshing of the 2nd sector gear, lifting rack and the 2nd fan -shaped gear meshing.
Description
Technical field
The utility model relates to a kind of device for the groove milling of sheave curved groove.
Background technology
Conventional external toothing straight slot geneva mechanism has the advantage that structure is simple, easily manufactured, transmission efficiency is high, is therefore widely used in light industry automation and machine industry and does on the device of periodic intermittent motion.But the dynamic characteristics of this straight trough sheave is not very desirable, namely when bearing pin turnover sheave notch position, sheave has acceleration to exist, and can produce soft impulse, and in motion process, its acceleration change is larger, the impact of bearing pin and sheave is serious, along with the raising of bearing pin rotating speed, impact can be made to aggravate further, therefore, the scope of application of straight trough sheave is subject to a definite limitation.In order to improve the dynamic characteristics of sheave, existing sheave is designed to curved groove.The existing device for sheave milling curved groove comprises the workpiece locating mechanism for holding workpiece and the groove milling mechanism for groove milling, in order to mill out curved groove, the manner of execution of usual employing three-coordinate, workpiece locating mechanism can move in Y direction under the drive of self power, groove milling mechanism can in X-axis and Z-direction motion under the drive of another power, said apparatus exist subject matter be: arrange two even three actuating units drive detent mechanism and groove milling mechanism respectively, complex structure, whole apparatus structure is not compact, volume is large, troublesome poeration, cost is high.
Utility model content
The utility model is intended to provide a kind of compact conformation, the device for the groove milling of sheave curved groove that simple to operate, cost is low.
The device for the groove milling of sheave curved groove in this programme, comprise workpiece locating mechanism, groove milling mechanism and actuating unit, it is characterized in that, described actuating unit comprises the camshaft driven by power, and camshaft is provided with the first cam, the second cam and the 3rd cam successively;
The cylindrical of the shape face of the first cam and first bearing pin of one first fork one end offsets, the other end of the first fork is rotatably connected on the first horizontal support axle, first back shaft is fixedly connected with a centering block, the end face of this centering block is male and fomale(M&F), one end and the described male and fomale(M&F) of one second fork offset, the middle part of described second fork is hinged on vertical supporting axle, and the other end of described second fork moves in Z-direction for promoting groove milling mechanism;
The cylindrical of second bearing pin of the shape face of the second cam and one the 3rd fork one end offsets, the other end of the 3rd fork is rotatably connected on the second horizontal support axle, second horizontal support axle is fixedly connected with one first sector gear, being provided with of engaging with the first sector gear one can promote the tooth bar that groove milling mechanism moves in X-direction;
The cylindrical of the shape face of the 3rd cam and the 3rd bearing pin of one the 4th fork one end offsets, the other end of the 4th fork is rotatably connected on the 3rd horizontal support axle, 3rd horizontal support axle is fixedly connected with one second sector gear, described workpiece locating mechanism is provided with the lifter rack that workpiece locating mechanism can be driven to move in Y direction, and described lifter rack engages with described second sector gear.
Operation principle of the present utility model and effect as follows: under the drive of power, camshaft rotates, the cylindrical of the shape face of the first cam and first bearing pin of first fork one end offsets, thus drive the first fork reciprocally swinging in upright plane, first fork drives the first back shaft reciprocating rotation, first back shaft drives centering block to carry out back rotation, end face due to centering block is male and fomale(M&F), one end and the male and fomale(M&F) of the second fork offset, therefore, under the effect of centering block male and fomale(M&F), the second fork at horizontal plane reciprocally swinging, and then will promote groove milling mechanism along Z-direction reciprocating action;
The cylindrical of the shape face of the second cam and second bearing pin of the 3rd fork one end offsets, thus drive the 3rd fork reciprocally swinging in upright plane, 3rd fork drives the second back shaft reciprocating rotation, 3rd back shaft drives the first sector gear to carry out back rotation, thus band carry-over bar moves back and forth, by rack drives groove milling mechanism along X-direction reciprocating action;
The cylindrical of the shape face of the 3rd cam and the 3rd bearing pin of the 4th fork one end offsets, drive the 4th to swing to rotate in upright plane, thus drive the second sector gear reciprocally swinging, by coordinating of the second sector gear and lifter rack, drive workpiece locating mechanism moves back and forth in Y direction by lifter rack.
Due to the synthesis of X Y Z axis three direction motions, required curved groove just can be processed by groove milling mechanism on workpiece.
The same power that moves through of the motion of the utility model scheme workpiece locating mechanism Y direction and groove milling mechanism X-axis and Z-direction drives, and cost simple and compact for structure is low, and device starts a power that also only need start setting, easy to operate.
Further, workpiece locating mechanism comprises and is fixed on the support on pedestal and the slide plate for installing workpiece, be provided with vertical dovetail groove on the bracket, slide plate is provided with the projection that cross section is swallow-tail form, described slide plate is coordinated and support installing by projection and dovetail groove, and lifter rack and described slide plate are fixed.By coordinating of the dovetail groove that support is arranged and the projection that slide plate is arranged, make slide plate more stable when oscilaltion campaign.
Further, dismountablely on slide plate be provided with Workpiece fixing plate, Workpiece fixing plate is provided with at least two trade union college positions, processes while can realizing multiple workpiece.
Further, the end thread of the second fork is connected with a screw rod, and screw rod is provided with the circular push-plate of the level for promoting groove milling mechanism.Act on groove milling mechanism urges groove milling mechanism kinematic by circular push-plate, reduce the fretting wear that the second fork and groove milling mechanism directly contact generation, even and if circular push-plate worn and torn, owing to being threaded, also easily change.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Detailed description of the invention
Below by detailed description of the invention, the utility model is described in further detail:
Reference numeral in Figure of description comprises: lifter rack 1, slide plate 2, support 3, workpiece 4, spindle drum 5, longitudinal slide 6, main shaft 7, cross slide 8, tooth bar 9, second fork 10, vertical supporting axle 11, centering block 12, first back shaft 13, first fork 14, first cam 15, the 3rd fork 16, second cam 17, first sector rack 18, worm gear 19, worm screw 20, the 3rd cam 21, camshaft 22, the 4th fork 23, the 3rd back shaft 24, second sector gear 25.
Embodiment is substantially as shown in Figure 1: the device that the present embodiment is used for the groove milling of sheave curved groove comprises workpiece locating mechanism, groove milling mechanism and actuating unit.
Workpiece locating mechanism comprises the support of L shape, slide plate, lifter rack and Workpiece fixing plate, support is fixed on pedestal, support is provided with vertical dovetail groove, slide plate is vertically arranged, slide plate is provided with the projection that cross section is swallow-tail form, and slide plate is coordinated and support installing by projection and dovetail groove, and lifter rack is welded on the side direction of slide plate, Workpiece fixing plate is detachably connected on the plate face of slide plate by screw, and in the present embodiment, Workpiece fixing plate is provided with two trade union college positions.
Groove milling mechanism comprises cross slide, longitudinal slide, spindle drum and main shaft, cross slide is supported on pedestal and also can moves in the X-axis direction, longitudinal slide is positioned at cross slide top and can moves along Z-direction, spindle drum is positioned at longitudinal slide top, main shaft has two, side by side up and downly respectively be arranged on spindle drum, main shaft is driven by spindle motor (not shown), and the position of two main shafts is corresponding with the trade union college position of two on Workpiece fixing plate respectively.
The actuating unit of the present embodiment comprises the camshaft driven by power, and camshaft is provided with the first cam, the second cam and the 3rd cam successively.The cylindrical of the shape face of the first cam and first bearing pin of first fork one end offsets, the other end of the first fork is rotatably connected on the first horizontal support axle, first back shaft is fixedly connected with centering block, the end face of this centering block is male and fomale(M&F), one end and the male and fomale(M&F) of the second fork offset, the middle part of the second fork is hinged on vertical supporting axle, and the end thread of the second fork is connected with screw rod, and screw rod is provided with the circular push-plate of the level that longitudinal slide for promoting groove milling mechanism moves in Z-direction.The cylindrical of the shape face of the second cam and second bearing pin of the 3rd fork one end offsets, the other end of the 3rd fork is rotatably connected on the second horizontal support axle, second horizontal support axle is fixedly connected with the first sector gear, the tooth bar that the cross slide that being provided with of engaging with the first sector gear can promote groove milling mechanism moves in X-direction.The cylindrical of the shape face of the 3rd cam and the 3rd bearing pin of the 4th fork one end offsets, and the other end of the 4th fork is rotatably connected on the 3rd horizontal support axle, and the 3rd horizontal support axle is fixedly connected with the second sector gear, and lifter rack engages with the second sector gear.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (4)
1. for the device of sheave curved groove groove milling, comprise workpiece locating mechanism, groove milling mechanism and actuating unit, it is characterized in that, described actuating unit comprises the camshaft driven by power, and camshaft is provided with the first cam, the second cam and the 3rd cam successively;
The cylindrical of the shape face of the first cam and first bearing pin of one first fork one end offsets, the other end of the first fork is rotatably connected on the first horizontal support axle, first back shaft is fixedly connected with a centering block, the end face of this centering block is male and fomale(M&F), one end and the described male and fomale(M&F) of one second fork offset, the middle part of described second fork is hinged on vertical supporting axle, and the other end of described second fork moves in Z-direction for promoting groove milling mechanism;
The cylindrical of second bearing pin of the shape face of the second cam and one the 3rd fork one end offsets, the other end of the 3rd fork is rotatably connected on the second horizontal support axle, second horizontal support axle is fixedly connected with one first sector gear, being provided with of engaging with the first sector gear one can promote the tooth bar that groove milling mechanism moves in X-direction;
The cylindrical of the shape face of the 3rd cam and the 3rd bearing pin of one the 4th fork one end offsets, the other end of the 4th fork is rotatably connected on the 3rd horizontal support axle, 3rd horizontal support axle is fixedly connected with one second sector gear, described workpiece locating mechanism is provided with the lifter rack that workpiece locating mechanism can be driven to move in Y direction, and described lifter rack engages with described second sector gear.
2. the device for the groove milling of sheave curved groove according to claim 1, it is characterized in that: described workpiece locating mechanism comprises and is fixed on the support on pedestal and the slide plate for installing workpiece, be provided with vertical dovetail groove on the bracket, slide plate is provided with the projection that cross section is swallow-tail form, described slide plate is coordinated and support installing by projection and dovetail groove, and described lifter rack and described slide plate are fixed.
3. the device for the groove milling of sheave curved groove according to claim 2, is characterized in that: dismountablely on described slide plate be provided with Workpiece fixing plate, and Workpiece fixing plate is provided with at least two trade union college positions.
4. the device for the groove milling of sheave curved groove according to claim 1, is characterized in that: be connected with a screw rod in the end thread of described second fork, and screw rod is provided with the circular push-plate of the level for promoting groove milling mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602090.1U CN204912882U (en) | 2015-08-12 | 2015-08-12 | A device for milling flutes of sheave cam slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602090.1U CN204912882U (en) | 2015-08-12 | 2015-08-12 | A device for milling flutes of sheave cam slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204912882U true CN204912882U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520602090.1U Expired - Fee Related CN204912882U (en) | 2015-08-12 | 2015-08-12 | A device for milling flutes of sheave cam slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204912882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033340A (en) * | 2015-08-12 | 2015-11-11 | 重庆市合川区均恒金属加工厂 | Device for milling sheave curved groove |
-
2015
- 2015-08-12 CN CN201520602090.1U patent/CN204912882U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033340A (en) * | 2015-08-12 | 2015-11-11 | 重庆市合川区均恒金属加工厂 | Device for milling sheave curved groove |
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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: 20151230 Termination date: 20160812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |