CN203489853U - Drag chain used for ultra-long type coordinate measuring machine - Google Patents
Drag chain used for ultra-long type coordinate measuring machine Download PDFInfo
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- CN203489853U CN203489853U CN201320605517.4U CN201320605517U CN203489853U CN 203489853 U CN203489853 U CN 203489853U CN 201320605517 U CN201320605517 U CN 201320605517U CN 203489853 U CN203489853 U CN 203489853U
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- drag chain
- pin
- chain assembly
- measuring machine
- coordinate measuring
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Abstract
A drag chain used for an ultra-long type coordinate measuring machine comprises a wiring duct and a drag chain assembly, a U-shaped axis plane of the drag chain assembly is parallel to the horizontal plane, through holes are respectively disposed in an upper pin axis position and a lower pin axis position of a chain link unit of the drag chain assembly every at least 0.5 meters, each upper through hole is inserted with a top pin and an upper bearing and a top disc of the top pin, and each lower through hole is inserted with a roller mechanism used for supporting the drag chain assembly. Each roller mechanism comprises a bottom pin inserted in the corresponding lower through hole, a screw perpendicular to the bottom pin is horizontally inserted in a lower half portion of the bottom pin, the screw is also sleeved with a lower bearing with an end face parallel to the inner wall of the wiring duct, and a radial direction central plane of the lower bearing installed on the screw of the bottom pin is biased to a central axis direction of the wiring duct. The drag chain, with a tiny influence on precision of the ultra-long type measuring machine, is simple in structure, low in cost and high in reliability, sag and deflection of the drag chain assembly are tiny, the drag chain can be operated directionally with low friction resistance, and the drag chain can be widely used in a cable servo system of the ultra-long type coordinate measuring machine or a servo system of an ultra-large type machine tool.
Description
Technical field
The utility model relates to a kind of drag chain for three coordinate measuring machine, is specifically related to a kind of drag chain for super long type three coordinate measuring machine (travel range reaches tens meters of magnitudes).
Background technology
The gentle number of lines of cable and the specification of three coordinate measuring machine are various, conventionally be collected in drag chain inner chamber, connector moves reciprocatingly with the shifting axle of three coordinate measuring machine, and another connector is fixed on line cell wall, its containing U-shaped axis plane perpendicular to surface level.The power that the kinematic train of three coordinate measuring machine arranges is low, general 100～400W, but require running precision high, and registration, servomechanism resistance is little, and change in resistance is little, and noise is low.With three coordinate measuring machine shifting axle stroke, lengthening, even there is interior R side contacts and produces friction in drag chain gravity sag, and servomechanism resistance strengthens, and change in resistance is large, and noise is large, drag chain wearing and tearing aggravation, and measuring machine drives and is disturbed that uncertain factor is increased is even stuck.Strengthen drag chain wall thickness or adopt steel material drag chain to strengthen rigidity, rigidity increases limited, and drag chain increases the weight of, and drag chain is still sagging, and the DC servo motor of power limited drives with jitter phenomenon, and fluctuation of service is even stuck.A plurality of symmetric pyramid wheels of external name family expenses hold up drag chain, and R side right-angle side in drag chain, contacts with taper cone pulley inclined-plane DISCRETE ELASTIC SUPPORTS, stressed unreasonable, drag chain moves upper and lower and horizontal direction play increasing, and three coordinate measuring machine precision is had to interference, and stochastic error software is difficult to revise.
The support oriented device of the drag chain that domestic drag chain manufacturer provides, half stroke that only solves drag chain has and supports and guiding, at another half stroke, does not establish and supports and guide piece, can only solve the servomechanism of the three coordinate measuring machine of several meters of ranges.
Summary of the invention
The purpose of this utility model is to provide a kind of drag chain for super long type three coordinate measuring machine, to make up the deficiencies in the prior art.
For a drag chain for super long type three coordinate measuring machine, comprise Wiring trough and inner drag chain assembly thereof, a side of described Wiring trough is fixed on the fixed guide of three coordinate measuring machine; Described drag chain assembly is comprised of via connected link units before and after bearing pin a plurality of, and drag chain assembly rear and front end is respectively equipped with connector;
The U-shaped axis plane that it is characterized in that above-mentioned drag chain assembly is parallel with surface level, the connector of drag chain assembly stiff end is fixed on the inwall of Wiring trough, the connector of drag chain assembly mobile terminal is fixed on the angle brace of three coordinate measuring machine, and described angle brace is fixed on the moving-member of three coordinate measuring machine;
Described drag chain assembly, every at least 0.5 meter of length, is established a through hole in two bearing pin positions up and down of link units, in described upper through hole, is inserted with ejector pin, and the first half cover of described ejector pin has head bearing, and the exterior ring cap of this head bearing has circular taking over a business; In described lower through-hole, be inserted with the idler wheel mechanism sliding for supporting drag chain assembly.
Above-mentioned is for drag chain assembly provides support for supporting the object of the idler wheel mechanism of drag chain assembly, and by rolling friction to reduce resistance.In order to obtain better effect, the utility model gives the idler wheel mechanism after a kind of improvement: comprise the end pin being inserted in lower through-hole, also have the screw level perpendicular to end pin to insert the Lower Half at end pin, on screw also cover have lower bearing, and the end face of lower bearing and the inwall of Wiring trough parallel.
The above-mentioned axis direction that is arranged on the radial central planes deflection Wiring trough of the lower bearing on the screw of selling at the end.Be lower bearing radial central planes near and be parallel to drag chain assembly medial surface or revolution intrados.This design can make drag chain assembly be unlikely to the motion of Wiring trough axis in use procedure, thereby can avoid the medial surface of drag chain assembly to bump or phase mutual friction, effectively avoids the generation of use accident.
Above line wire casing inner bottom surface is pasted two guide-soft-bands along its length, and the upper surface of two described guide-soft-bands is positioned at the below of idler wheel mechanism.When adopt after the utility model improves idler wheel mechanism time, the upper surface center line position of two guide-soft-bands is tangent with the outer shroud that is fixed on the bearing on end pin.Idler wheel mechanism is subject to while moving in Wiring trough friction force that this design not only can further reduce drag chain assembly, also has good damping effect.
The medial surface of the close drag chain assembly mobile terminal of above line wire casing is pasted a guide-soft-band along its length, and the height at described guide-soft-band outside surface center line position is consistent with the height of taking over a business.This design not only can further reduce the friction force of taking over a business to be subject to when drag chain assembly moves in Wiring trough, can reduce to take over a business noise and the vibration producing because of collision Wiring trough.
Can utilize on the basis of pin of the existing common end, the utility model has also proposed pin of a kind of improved end: the concentric cylinder that comprises upper and lower two different-diameters, what be positioned at bottom is big column, two of its cylinder excisions are arc and form two planes that are parallel to each other, level is lower than the height of big column, and plane has a threaded hole intersecting vertically with end pin axis; Described screw screws in the threaded hole of end pin through the interior ring of packing ring, lower bearing, another packing ring successively; The small column on pin top, the end inserts in the lower through-hole of link units lower pin shaft position to big column end face and fits.
Can utilize on the basis of existing common ejector pin, the utility model has also proposed a kind of improved ejector pin: comprise upper and lower four first to fourth cylinders coaxial, different-diameter, and the diameter of the second cylinder is between a three cylindrical, and the 4th body diameter is less than three cylindrical; In the upper through hole of the 4th cylinder insertion link units upper pin shaft position, to the laminating of three cylindrical bottom surface, head bearing inserts the first cylinder and fits with the end face of the second cylinder; External diameter is greater than the outer shroud that the outer high interior ring of taking over a business of drag chain assembly inserts head bearing, takes over a business interior circular cylinder and the laminating of outer race cylinder.
The utility model is very little to the Accuracy of overlength measuring machine, simple in structure, cost is low, reliability is high. and the outer race segmentation that the cable weight of overlength drag chain assembly and inner chamber thereof is installed by end pin holds up, inwall or the revolution intrados of the bearing radial central planes deflection drag chain assembly that end pin is installed, the moment that drag chain assembly and contained cable barycenter depart from the generation of bearing centre of support makes plane on drag chain assembly tilt to Wiring trough inwall, take over a business outer cylinder and the laminating of Wiring trough inwall, limited the inclination of drag chain assembly to Wiring trough inwall, played the effect of guiding, drag chain assembly sag of chain and beat amount are very little, the directed operation of low frictional resistance, can be widely used in the cable servomechanism of overlength three coordinate measuring machine or the servomechanism of ultra-large type lathe.
Accompanying drawing explanation
Fig. 1 is schematic side view of the present utility model (guide rail of visible face laminating measuring machine).
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is the A-A diagrammatic cross-section of Fig. 1.
Fig. 4 is the schematic perspective view of the drag chain assembly of the utility model use.
Fig. 5 is the decomposing schematic representation of link units of the present utility model and connected part.
Fig. 6 is the cross-sectional schematic after link units of the present utility model and the combination of connected part.
The connection diagram of Fig. 7 drag chain assembly mobile terminal.
The connection diagram of Fig. 8 drag chain assembly stiff end.
The perspective view of pin at the bottom of Fig. 9.
The perspective view of Figure 10 ejector pin.
Wherein, 1, end pin, 2, ejector pin, 3, take over a business, 4, Wiring trough, 5, angle brace, 6, backing plate, 7, drag chain assembly, 8, nut, 9, head bearing, 10, packing ring, 11, screw, 12, screw, 13, spring washer, 14, link units, 15, connector, 16, guide-soft-band, 17, lower bearing.
Embodiment
As shown in Fig. 1～8, a kind of drag chain for super long type three coordinate measuring machine, comprises Wiring trough 4 and inner drag chain assembly 7 thereof, and a side of described Wiring trough 4 is fixed on the fixed guide of three coordinate measuring machine; Described drag chain assembly 7 is comprised of via connected link units 14 before and after bearing pin a plurality of, and drag chain assembly (7) rear and front end is respectively equipped with connector 15;
The U-shaped axis plane that it is characterized in that above-mentioned drag chain assembly 7 is parallel with surface level, the connector 15 of drag chain assembly 7 stiff ends is fixed on the inwall of Wiring trough 4, the connector 15 of drag chain assembly 7 mobile terminals is fixed on the angle brace 5 of three coordinate measuring machine, and described angle brace 5 is fixed on the moving-member of three coordinate measuring machine;
Described drag chain assembly 7, every at least 0.5 meter of length, is established a through hole in two bearing pin positions up and down of link units 14, in described upper through hole, is inserted with ejector pin 2, and the first half cover of described ejector pin 2 has head bearing 9, and the exterior ring cap of this head bearing 9 has circular takes over a business 3; In described lower through-hole, be inserted with the idler wheel mechanism sliding for supporting drag chain assembly 7.
Above-mentioned is for drag chain assembly 7 provides support for supporting the object of the idler wheel mechanism of drag chain assembly 7, and by rolling friction to reduce resistance.In order to obtain better effect, as shown in Figure 6, the utility model gives the idler wheel mechanism after a kind of improvement: comprise the end pin 1 being inserted in lower through-hole, also have screw 11 levels perpendicular to end pin 1 to insert the Lower Half at end pin 1, on screw 11, also cover has lower bearing 17, and the end face of lower bearing 17 is parallel with the inwall of Wiring trough 4.
As shown in Figure 3, the axis direction of the radial central planes deflection Wiring trough 4 of the lower bearing 17 on the above-mentioned screw 11 that is arranged on end pin 1.Be lower bearing 17 radial central planes near and be parallel to drag chain assembly 7 medial surface or revolution intrados.This design can make drag chain assembly 7 be unlikely to Wiring trough 4 axis motions in use procedure, thereby can avoid the medial surface of drag chain assembly 7 to bump or phase mutual friction, effectively avoids the generation of use accident.
As shown in Figure 3, above line wire casing 4 inner bottom surfaces are pasted two guide-soft-bands 16 along its length, and the upper surface of two described guide-soft-bands 16 is positioned at the below of idler wheel mechanism.When adopt after the utility model improves idler wheel mechanism time, the upper surface center line position of two guide-soft-bands 16 is tangent with the outer shroud that is fixed on the bearing 17 on end pin 1.This design not only can further reduce drag chain assembly 7 friction force that idler wheel mechanism is subject to when the interior motion of Wiring trough 4, also has good damping effect.
As shown in Figure 3, the medial surface of close drag chain assembly 7 mobile terminals of above line wire casing 4 is pasted a guide-soft-band 16 along its length, and the height at described guide-soft-band 16 outside surface center line positions is consistent with the height of taking over a business 3.This design not only can further reduce drag chain assembly 7 and take over a business 3 friction force that are subject to when the interior motion of Wiring trough 4, can reduce to take over a business 3 noise and the vibrations that produce because colliding Wiring trough 4.
Can utilize on the basis of pin of the existing common end, the utility model has also proposed pin of a kind of improved end 1: as shown in Figure 9, the concentric cylinder that comprises upper and lower two different-diameters, what be positioned at bottom is big column, two of its cylinder excisions are arc and form two planes that are parallel to each other, level is lower than the height of big column, and plane has one the end of with, to sell the threaded hole of 1 intersect vertical axis; Described screw 11 screws in the threaded hole of end pin 1 through the interior ring of packing ring 10, lower bearing 17, another packing ring 10 successively; The end small column of selling 1 top inserts in the lower through-hole of link units 14 lower pin shaft positions to big column end face and fits.
Can utilize on the basis of existing common ejector pin, the utility model has also proposed a kind of improved ejector pin 2: as shown in figure 10, comprise upper and lower four first to fourth cylinders coaxial, different-diameter, and the diameter of the second cylinder is between a three cylindrical, and the 4th body diameter is less than three cylindrical; In the upper through hole of the 4th cylinder insertion link units 7 upper pin shaft positions, to the laminating of three cylindrical bottom surface, head bearing 9 inserts the first cylinders and also fits with the end face of the second cylinder; External diameter is greater than the outer high outer shroud that 3 interior ring inserts head bearing 9 of taking over a business of drag chain assembly 7, takes over a business the outer circular cylinder of 3 interior circular cylinders and bearing 9 and fits.
The thickness of described guide-soft-band 16 preferably selects thin, as is not more than 0.5 millimeter.
Concrete technology of the present utility model is as follows: first a plurality of link units 14 are assembled to design length (the design length minimum value of link units combination is that half stroke of this axle of measuring machine adds drag chain assembly revolution arc length), two ends assembly connector 15, every at least 0.5 meter of length, at adjacent link unit 14 pin-and-holes, coordinate on axis and process through hole, its aperture is less than 14Xiao He hole, adjacent link unit fit diameter; Screw 11 threaded portions are coated with thread locking glue, be inserted in the first packing ring 10, lower bearing 17, the second packing ring 10 screws in the threaded hole of end pin 1, the small column of end pin 1 and the end face of big column are coated with high strength structural adhesion, in the machining hole of the bottom of small column insertion drag chain assembly 7, to big column end face and the 7 bottom surfaces laminatings of drag chain assembly, regulate lower bearing 17 radial central planes and the drag chain assembly 7 inwall depth of parallelisms and be partial to inwall or revolution intrados, glue solidifies 48 hours; The 4th cylinder of ejector pin 2, three cylindrical bottom surface, the second first face of cylinder, cylinder upper surface is coated with high strength structural adhesion, the 4th cylinder inserts in the top machining hole of drag chain assembly 7 to three cylindrical bottom surface face and fits, the interior ring of bearing 9 inserts ejector pin 2 first cylinders and fits with the second cylinder end face, take over a business 3 interior ring and be coated with the outer shroud that high strength structural adhesion inserts head bearing 9, to the interior ring and head bearing 9 outer shrouds laminatings, curing 48 hours of taking over a business 3; Measuring machine erecting yard manufactures drag chain assembly 7 stiff end connectors 15 screw hole corresponding with Wiring trough 4; Screw 12 screws in through the original screw hole of spring washer 13 Wiring trough 4 threaded hole that measuring machine guide rail matches; Screw 12 screws in the threaded hole of angle brace 5 through the screw hole of drag chain assembly 7 mobile terminal connectors 15, with nut 8 lockings, screw 12 screws in the moving-member (driving drag chain assembly 7 to move reciprocatingly by measuring machine by angle brace 5 during use) of measuring machine through the screw hole of spring washer 13 angle brace 5 minor faces; Screw 12 threaded portions are coated with the screw hole that thread locking glue manufactures through Wiring trough 4 scenes, and the screw hole of the screw hole connector 15 of backing plate 6 screws in nut 8, solidify 48 hours; By guide-soft-band special glue, guide-soft-band 16 is bonded in to three positions of Wiring trough 4 inwalls, sticky two of inwall lower plane, madial wall is near sticky one of angle brace 5 positions, and position is roughly symmetrical with lower bearing 17 radial central planes.
Claims (7)
1. for a drag chain for super long type three coordinate measuring machine, comprise Wiring trough (4) and inner drag chain assembly (7) thereof, a side of described Wiring trough (4) is fixed on the fixed guide of three coordinate measuring machine; Described drag chain assembly (7) is comprised of via connected link units (14) before and after bearing pin a plurality of, and drag chain assembly (7) rear and front end is respectively equipped with connector (15);
The U-shaped axis plane that it is characterized in that above-mentioned drag chain assembly (7) is parallel with surface level, the connector (15) of drag chain assembly (7) stiff end is fixed on the inwall of Wiring trough (4), the connector (15) of drag chain assembly (7) mobile terminal is fixed on the angle brace (5) of three coordinate measuring machine, and described angle brace (5) is fixed on the shifting axle of three coordinate measuring machine;
Described drag chain assembly (7) is every at least 0.5 meter of length, two bearing pin positions up and down in link units (14) arrange respectively upper through hole and lower through-hole, in described upper through hole, be inserted with ejector pin (2), the first half cover of described ejector pin (2) has head bearing (9), and the exterior ring cap of this head bearing (9) has circular take over a business (3); In described lower through-hole, be inserted with the idler wheel mechanism sliding for supporting drag chain assembly (7).
2. the drag chain for super long type three coordinate measuring machine as claimed in claim 1, it is characterized in that above-mentioned for supporting the idler wheel mechanism of drag chain assembly (7): comprise the end pin (1) that is inserted in lower through-hole, also have screw (11) level perpendicular to end pin (1) to insert the Lower Half at end pin (1), on screw (11), also cover has lower bearing (17), and the end face of lower bearing (17) is parallel with the inwall of Wiring trough (4).
3. the drag chain for super long type three coordinate measuring machine as claimed in claim 2, is characterized in that the axis direction of the radial central planes deflection Wiring trough (4) of the lower bearing (17) on the above-mentioned screw (11) that is arranged on end pin (1); Be lower bearing (17) radial central planes near and be parallel to drag chain assembly (7) medial surface or revolution intrados.
4. the drag chain for super long type three coordinate measuring machine as claimed in claim 1, it is characterized in that above line wire casing (4) inner bottom surface pastes two guide-soft-bands (16) along its length, the upper surface center line position of described two guide-soft-bands (16) is tangent with the outer shroud that is fixed on the bearing (9) on end pin (1).
5. the drag chain for super long type three coordinate measuring machine as claimed in claim 1, it is characterized in that above line wire casing (4) medial surface pastes a guide-soft-band (16) along its length, the height of described guide-soft-band (16) outside surface center line portion is consistent with the height of taking over a business (3).
6. the drag chain for super long type three coordinate measuring machine as claimed in claim 2, it is characterized in that above-mentioned end pin (1) comprises the concentric cylinder of upper and lower two different-diameters, what be positioned at bottom is big column, two of its cylinder excisions are arc and form two planes that are parallel to each other, level is lower than the height of big column, and plane has a threaded hole with end pin (1) intersect vertical axis; Described screw (11) screws in the threaded hole of end pin (1) through the interior ring of a packing ring (10), lower bearing (17), another packing ring (10) successively; The small column on end pin (1) top inserts in the lower through-hole of link units (14) lower pin shaft position to big column end face and fits.
7. the drag chain for super long type three coordinate measuring machine as claimed in claim 1, it is characterized in that above-mentioned ejector pin (2) comprises upper and lower four first to fourth cylinders coaxial, different-diameter, and the diameter of the second cylinder is between a three cylindrical, and the 4th body diameter is less than three cylindrical; In the upper through hole of the 4th cylinder insertion link units (7) upper pin shaft position, to the laminating of three cylindrical bottom surface, head bearing (9) inserts the first cylinder and also fits with the end face of the second cylinder; External diameter is greater than the outer shroud of the interior ring insertion head bearing (9) of outer high the taking over a business (3) of drag chain assembly (7), takes over a business interior circular cylinder and the outer circular cylinder laminating of bearing (9) of (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605517.4U CN203489853U (en) | 2013-09-27 | 2013-09-27 | Drag chain used for ultra-long type coordinate measuring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605517.4U CN203489853U (en) | 2013-09-27 | 2013-09-27 | Drag chain used for ultra-long type coordinate measuring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489853U true CN203489853U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320605517.4U Withdrawn - After Issue CN203489853U (en) | 2013-09-27 | 2013-09-27 | Drag chain used for ultra-long type coordinate measuring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203489853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470693A (en) * | 2013-09-27 | 2013-12-25 | 浙江时代计量科技有限公司 | Drag chain used for ultra-long three-coordinate measuring machine |
| CN105648411A (en) * | 2014-11-12 | 2016-06-08 | 中国科学院沈阳科学仪器股份有限公司 | Arc scanning mechanism used for glass coating |
-
2013
- 2013-09-27 CN CN201320605517.4U patent/CN203489853U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470693A (en) * | 2013-09-27 | 2013-12-25 | 浙江时代计量科技有限公司 | Drag chain used for ultra-long three-coordinate measuring machine |
| CN103470693B (en) * | 2013-09-27 | 2015-04-29 | 浙江时代计量科技有限公司 | Drag chain used for ultra-long three-coordinate measuring machine |
| CN105648411A (en) * | 2014-11-12 | 2016-06-08 | 中国科学院沈阳科学仪器股份有限公司 | Arc scanning mechanism used for glass coating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140319 Effective date of abandoning: 20150429 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140319 Effective date of abandoning: 20150429 |