CN109357691B - Movable encoder interface with taper shank and double inclined planes for adjustment - Google Patents

Movable encoder interface with taper shank and double inclined planes for adjustment Download PDF

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Publication number
CN109357691B
CN109357691B CN201811427971.9A CN201811427971A CN109357691B CN 109357691 B CN109357691 B CN 109357691B CN 201811427971 A CN201811427971 A CN 201811427971A CN 109357691 B CN109357691 B CN 109357691B
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China
Prior art keywords
taper shank
encoder
shaft sleeve
sleeve
base
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CN201811427971.9A
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Chinese (zh)
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CN109357691A (en
Inventor
王利
曾令万
杨勇
刘代福
廖承渝
陈米艳
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Chongqing Machine Tool Group Co Ltd
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Chongqing Machine Tool Group Co Ltd
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Publication of CN109357691A publication Critical patent/CN109357691A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24423Mounting means or means for restraining during shipping

Abstract

The invention belongs to the technical field of precision measurement, and particularly relates to a movable encoder interface with a taper shank and double inclined planes, which comprises a disc-shaped base, wherein a disc-shaped end jump adjusting disc is fixedly arranged on the base, the center of the end jump adjusting disc is provided with an integrated taper shank, the upper part of the taper shank is fixedly connected with a movable seat, a shaft sleeve is fixedly arranged in the movable seat, a jacking screw rod extending out of the shaft sleeve along the axial direction is penetrated in an inner hole of the shaft sleeve, a rotary encoder is sleeved at the upper end of the shaft sleeve, an outer sleeve is fixedly arranged outside the shaft sleeve through a rolling bearing in a rotating manner, a surface rod seat for preventing the outer sleeve from rotating along with the encoder interface to influence the test precision of a transmission chain is arranged on the outer circumference of the outer sleeve, and an encoder protecting cover fixed on the outer sleeve through a fastener is arranged on the outer sleeve. The invention aims to solve the problems of difficult installation, poor interchangeability and inconvenient disassembly and assembly in the prior art.

Description

Movable encoder interface with taper shank and double inclined planes for adjustment
Technical Field
The invention belongs to the technical field of precision measurement, and relates to a movable encoder interface with a taper shank and double inclined planes for adjustment.
Background
Modern motion control has been developed rapidly, and thus requires greater precision over a wide range of motion, a wide range of operating temperatures, and a long range of operating years. As an important link of motion control, namely, a circular grating encoder is also becoming more and more important, and is widely applied to motion bodies such as precision machine tools, automatic trains and various elevators, and as a main component in motion control, the circular grating encoder belongs to a high-precision appliance, is light and thin in size and large in inner diameter, and the main part of the circular grating encoder is a stainless steel circular ring directly marked with a grating. Therefore, in order to avoid influencing and damaging the precision of the encoder, the beating is strictly prohibited in the process of installation and adjustment, which makes the process of installation and adjustment of the encoder very difficult, long in time, high in cost and poor in interchangeability. The prior art is basically limited to fixed use on equipment, and therefore brings a plurality of inconveniences to actual installation and testing processes.
Disclosure of Invention
In view of the above, the invention provides a movable type interface with taper shank and double inclined planes for adjusting the mounting position of an encoder in a manner of adopting conical surface contact and inclined planes for adjusting in order to solve the problems of difficult mounting, poor interchangeability and inconvenient dismounting in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a portable encoder interface of two inclined planes adjustment of taper shank, including discoid base, fixed mounting has discoid end to jump the adjustment disk on the base, and end to jump the adjustment disk center and be provided with integral type structure taper shank, taper shank upper portion fixedly connected with movable seat, inside fixed mounting of movable seat has the axle sleeve, wears to have in the axle sleeve hole along the roof pressure screw rod that extends the axle sleeve axially, and the axle sleeve upper end cover has rotary encoder, and the axle sleeve outside has the overcoat through antifriction bearing rotation fixed mounting, is provided with on the overcoat outer circumference and prevents that the overcoat from following encoder interface rotation and influence the table pole seat of drive chain test accuracy, is provided with the encoder safety cover of fixing on the overcoat through the fastener above the overcoat.
Further, a threaded hole is formed in the middle of the taper shank, and the jacking screw is fixedly connected to the taper shank through threads and fixedly connected with the taper shank and the shaft sleeve.
Further, a positioning mandrel for preventing the radial movement of the end jump adjusting disk is sleeved on the base and is used for connecting the base and a hole in the middle of the end jump adjusting disk, and a step for preventing the axial movement of the positioning mandrel is arranged outside the positioning mandrel.
Further, the lower end of the shaft sleeve is provided with a taper hole which has the same taper as the taper shank of the base and is axially matched with the taper shank of the base.
Further, a sleeve nut for separating the shaft sleeve from the taper shank and preventing dust is arranged at the top of the jacking screw.
Further, the upper end of the shaft sleeve is provided with a conical surface matched with the conical hole of the encoder, the encoder is a precision angle steel drum encoder, and the encoder is rotationally connected to the conical surface at the upper end of the shaft sleeve, so that the installation accuracy is convenient to adjust.
Furthermore, the base is provided with an inclined plane and a scale which is convenient for quantifying the runout adjustment quantity of the end face, and the scale corresponding to the adjustment quantity per grid of the correction belt can be calibrated by matching the inclined plane inclination angle.
Further, an end jump adjusting disc is provided with an adjusting end jump correcting belt and an inclined plane which are convenient for the installation of a base with scales and the adjustment of the end jump error.
The invention has the beneficial effects that: the encoder is provided with the base with scales, the end jump adjusting disc and the movable seat, and is respectively installed, so that the installation can be completed by using inclined plane adjustment and conical surface contact, and the installation process is simple, convenient and high in efficiency. Meanwhile, knocking adjustment is not needed in the installation and debugging process, so that the operation safety is ensured, the adaptability of the high-precision encoder is enhanced, meanwhile, the influence of the end face runout error of the installation base surface on the installation precision of the whole device is effectively avoided, and the installation precision of the encoder is further improved.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of a mobile encoder interface with taper shank dual bevel adjustment according to the present invention;
FIG. 2 is a partial cross-sectional view of a movable seat in a movable encoder interface with taper shank dual bevel adjustment in accordance with the present invention
FIG. 3 is a schematic diagram of a scale-bearing base in the interface of the mobile encoder with taper shank dual-bevel adjustment according to the present invention;
FIG. 4 is a schematic diagram of the structure of a movable encoder interface middle-end jump adjusting disc with taper shank double-inclined-plane adjustment according to the present invention;
FIG. 5 is a sectional view of a mobile encoder interface base with taper shank dual ramp adjustment and end jump adjustment disk installation of the present invention;
FIG. 6 is a cross-sectional view of a movable seat in a movable encoder interface with taper shank dual bevel adjustment in accordance with the present invention;
FIG. 7 is a schematic diagram of the end-jump adjustment of the movable encoder interface with taper shank dual-slope adjustment according to the present invention;
FIG. 8 is a schematic illustration of scale adjustment in a mobile encoder interface with taper shank dual bevel adjustment in accordance with the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Reference numerals in the drawings of the specification include: base 1, end jump adjusting disk 2, movable seat 3, encoder 4, overcoat 5, axle sleeve 6, taper hole 7, table pole seat 8, roof pressure screw rod 9, sleeve nut 10, encoder safety cover 11, correction area 12, taper shank 13, location dabber 14.
The movable encoder interface with taper shank double-inclined-plane adjustment as shown in fig. 1-8 comprises a base 1 matched with inclined-plane inclination angles and convenient for quantifying adjustment quantity, wherein a hole in the middle of a graduated base 1 and a hole in the middle of an end jump adjusting disc 2 are sleeved with a positioning mandrel 14, an end jump correcting belt 12 convenient for installing the graduated base 1 is arranged on the end jump adjusting disc 2, the base 1 and the end jump adjusting disc 2 are connected with each other through bolts at a waist-shaped hole of the end jump correcting belt 12, an integrated taper shank 13 is arranged in the center of the end jump adjusting disc 2, the upper part of the taper shank 13 is fixedly connected with a movable seat 3, a shaft sleeve 6 is fixedly arranged in the movable seat 3, a jacking screw 9 axially extending out of the shaft sleeve 6 is penetrated in an inner hole of the shaft sleeve 6, a rotary encoder 4 is sleeved at the upper end of the shaft sleeve 6, the rotary encoder 4 is convenient for installing and adjusting the precision of the encoder 4 through contact of the conical surfaces, a table rod seat 8 preventing the outer sleeve 5 from rotating along with the interface of the encoder 4 to affect the measurement precision of a transmission chain is arranged on the outer circumference of the outer sleeve 5, and a fastener 11 is fixedly arranged on the outer sleeve 5 through a fastener 11. When the automatic positioning device is used, the base 1 with scales is fixed on a workbench through bolts, the end jump adjusting disc 2 is assembled and connected with the base 1 with scales, the end jump error of the end jump adjusting disc 2 is adjusted through the correction belt 12 on the end jump adjusting disc 2 with an inclined plane, after the end jump adjusting disc 2 is installed and debugged, the conical hole 7 at the lower end of the shaft sleeve 6 is axially matched with the conical handle 13 with the same taper, only the conical hole 7 matched with the axial direction is sleeved into the conical handle 13, the pre-positioning is finished, the conical surface is tensioned through the continuous screwing of the jacking screw 9, and the accurate positioning of the interface is finished.
By adopting the structure, the encoder 4 fixing device is divided into an upper part and a lower part, the upper part and the lower part are respectively installed and adjusted, the base 1 with the scales at the lower end is firstly connected and fixed with the table surface of the workbench through the pressing plate, and knocking is not needed. Then the positioning mandrel 14 is sleeved into the through hole in the middle of the base 1, the end jump adjusting disk 2 is arranged at the upper end of the positioning mandrel 14, the inclined plane of the base 1 with scales is contacted with the inclined plane of the end jump adjusting disk 2, the waist-shaped hole of the end jump correcting belt 12 is connected by bolts, and the end jump amount is adjusted through the end jump correcting belt 12. As shown in fig. 7, the left graph shows that the thin inclined surface of the end jump adjusting disk 2 contacts with the thick inclined surface of the graduated base 1, the right graph shows a schematic diagram of the end jump adjusting disk 2 rotated 180 °, and the jump amount of the end jump adjusting disk 2 per 1 ° can be calculated according to the geometric relationship, that is, the jump amount per 1 ° is: h/180, wherein h= (H1-H2) tan θ. According to the geometric relationship, a scale mark with the adjustment amount of each grid less than 1 mu can be made on the correction belt 12, so that the end jump adjustment amount is quantized, and the small adjustment is facilitated. As shown in fig. 8, when the two scale marks are aligned, the upper end face and the lower end face are in parallel positions, when the end jump dial rotates for a certain angle (see the end face round hole mark in fig. 8), an included angle is formed between the upper end face and the lower end face, the inclination of the shaft core wire of the angle encoder 4 can be changed by adjusting the rotation angle of the end jump adjusting disc 2 and the base 1 with scales, and when the inclination is equal to the end jump amount of the mounting base surface and the mounting direction is opposite, the end jump error caused by poor precision of the mounting base surface can be eliminated. Then the movable seat 3 of the upper end shaft sleeve 6 connected with the encoder 4 is sleeved on the taper shank 13 for preliminary positioning, after the tightening of the jacking screw 9, the automatic accurate positioning of the interface can be completed, and the sleeve nut 10 plays a role in dust prevention at the moment. Therefore, the installation process of the encoder 4 is convenient, knocking is avoided completely, and the safety of the installation process of the encoder 4 is ensured.
In this example, the middle parts of base 1 and end jump adjusting disk 2 are provided with the hole, with the positioning core axle 14 cover in the hole, can prevent that the end jump adjusting disk can not produce radial movement in the rotation in-process, the middle part design of taper shank 13 upper end has the screw hole, and threaded hole is through threaded fit has the roof pressure screw rod 9 that extends axle sleeve 6 along the axial, through the threaded connection in roof pressure screw rod 9 and taper shank 13 hole for axle sleeve 6 is connected fixedly with taper shank 13.
In this example, the sleeve nut 10 at the uppermost end of the interface is mainly used for separating the conical surface and preventing dust, when the shaft sleeve 6 connected with the encoder 4 is separated from the taper shank 13, the jacking screw 9 is screwed out for a certain distance, and then the sleeve nut 10 is connected with the thread at the upper end of the shaft sleeve 6, and is continuously screwed in to complete the separation of the conical surface.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (6)

1. The movable encoder interface with the taper shank double-inclined-plane adjustment is characterized by comprising a disc-shaped base, wherein a disc-shaped end jump adjusting disc is fixedly arranged on the base, an integrated taper shank is arranged at the center of the end jump adjusting disc, a movable seat is fixedly connected to the upper part of the taper shank, a shaft sleeve is fixedly arranged in the movable seat, a jacking screw rod extending out of the shaft sleeve along the axial direction is penetrated in an inner hole of the shaft sleeve, a rotary encoder is sleeved at the upper end of the shaft sleeve, an outer sleeve is fixedly arranged outside the shaft sleeve through a rolling bearing in a rotary manner, a table rod seat for preventing the outer sleeve from rotating along with the encoder interface to influence the testing precision of a transmission chain is arranged on the outer circumference of the outer sleeve, and an encoder protecting cover fixed on the outer sleeve through a fastener is arranged on the outer sleeve;
the base is provided with an inclined plane and a scale which is convenient for quantifying the runout adjustment quantity of the end face, and the scale corresponding to the adjustment quantity per grid of the correction belt can be calibrated by matching with the inclined plane inclination angle; the end jump adjusting disc is provided with an end jump correcting belt and an inclined plane which are convenient to mount with a base with scales and adjust the end jump error.
2. The mobile encoder interface with taper shank double-bevel adjustment of claim 1, wherein a threaded hole is designed in the middle of the taper shank, and the pressing screw is fixedly connected to the taper shank through threads and fixedly connects the taper shank with the shaft sleeve.
3. The mobile encoder interface with taper shank double-inclined-plane adjustment according to claim 2, wherein a positioning mandrel for preventing radial movement of the end jump adjusting disk is sleeved on the base, a hole for connecting the base and the middle part of the end jump adjusting disk is formed in the base, and a step for preventing the positioning mandrel from axially moving is arranged outside the positioning mandrel.
4. The mobile double bevel adjustment encoder interface with a taper shank as described in claim 3 wherein said lower end of said sleeve has a taper hole of the same taper as the base taper shank and axially mating therewith.
5. The mobile double bevel adjustment encoder interface with taper shank according to claim 4, wherein the top of the jacking screw is provided with a sleeve nut for separating the sleeve from the taper shank and preventing dust.
6. The movable encoder interface with taper shank double inclined surfaces adjustment according to claim 1, wherein the upper end of the shaft sleeve is provided with a conical surface matched with a taper hole of the encoder, the encoder is a precision angle steel drum encoder, and the encoder is rotatably connected to the conical surface at the upper end of the shaft sleeve, so that the installation precision is convenient to adjust.
CN201811427971.9A 2018-11-27 2018-11-27 Movable encoder interface with taper shank and double inclined planes for adjustment Active CN109357691B (en)

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CN109357691B true CN109357691B (en) 2023-11-21

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Publication number Priority date Publication date Assignee Title
EP4191206A1 (en) * 2021-12-02 2023-06-07 Hengstler GmbH Bearingless rotary encoder with a transport lock and such a transport lock

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