CN110667169A - High-precision detection device for position of slide block of servo press - Google Patents
High-precision detection device for position of slide block of servo press Download PDFInfo
- Publication number
- CN110667169A CN110667169A CN201910925339.5A CN201910925339A CN110667169A CN 110667169 A CN110667169 A CN 110667169A CN 201910925339 A CN201910925339 A CN 201910925339A CN 110667169 A CN110667169 A CN 110667169A
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- encoder
- rack
- transmission shaft
- gear set
- gear
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims description 19
- 238000009434 installation Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING 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
- G01D5/00—Mechanical 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
- G01D5/26—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical 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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The invention relates to a high-precision detection device for the position of a slide block of a servo press, which belongs to the technical field of servo presses and at least comprises the following components: the rack is connected with the sliding block through a rack fixing frame; a gear set engaged with the rack; a drive shaft connected to the gear set; the encoder is used for detecting the action of the transmission shaft; wherein: the transmission shaft is connected with the encoder through a coupler, the encoder is connected with the base through an encoder seat, the gear set comprises a gear with a key, a spring and an anti-backlash gear, the transmission shaft is fixed on the base through a bearing seat, and the encoder is a grating encoder. By adopting the technical scheme, the device meets the high-precision detection requirement of the position of the sliding block, reduces the installation requirement of the device, and increases the detection precision of equipment.
Description
Technical Field
The invention belongs to the technical field of servo presses, and particularly relates to a high-precision detection device for the position of a slide block of a servo press.
Background
In a traditional servo press, linear magnetic mass displacement scales are mostly adopted for linear motion displacement detection of equipment sliding blocks, and linear grating displacement scales are also used. However, the servo press is equipped with a high-power servo motor, the magnetic field of the servo motor can generate certain interference on the magnetic displacement ruler, the detection precision is reduced after long-time use, the operation precision of the equipment is affected, the grating displacement ruler has higher requirements on the processing precision of the equipment, the requirements on the relative position of the sliding head and the grating ruler in the installation process are higher, the damage is easy to generate, and the maintenance cost of the equipment are increased.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides the high-precision detection device for the slide block position of the servo press, which meets the high-precision detection requirement of the slide block position, reduces the installation requirement of the device and increases the detection precision of equipment.
The invention aims to provide a high-precision detection device for the slide position of a servo press, which at least comprises:
a rack (3) connected with the sliding block (1) through a rack fixing frame (4);
a gear set (5) engaged with the rack (3);
a transmission shaft (9) connected with the gear set (5);
an encoder (11) for detecting the motion of the transmission shaft (9); wherein:
the transmission shaft (9) is connected with the encoder (11) through a coupler (8).
Further, the encoder (11) is connected with the base (7) through an encoder base (10).
Further, the gear set (5) comprises a key gear (501), a spring (502) and an anti-backlash gear (503),
furthermore, the rack (3) moves up and down to drive the gear set (5) to rotate, so that the transmission shaft (9) is driven to rotate.
Furthermore, the transmission shaft (9) is fixed on the base (7) through a bearing seat (6).
Further, the encoder (11) is a grating encoder.
The invention has the advantages and positive effects that:
1. part of parts adopted by the range limiting device are standard profiles and standard parts, so that the range limiting device has good interchangeability, and meanwhile, the manufacturing difficulty and the installation difficulty are reduced.
2. Because of the adoption of the grating encoder, the magnetic field interference of equipment does not need to be considered, and the detection precision is higher.
3. The middle gear transmission is simultaneously the amplification of detection, and the detection precision of the encoder can be improved to a certain degree.
4. The gear set can well eliminate the clearance between the gear and the rack and eliminate the reciprocating motion error.
5. The stroke limiting device is simple in structure and easy to maintain.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a first enlarged schematic view of a gear set in accordance with a preferred embodiment of the present invention;
FIG. 3 is a second enlarged schematic view of a gear set in accordance with a preferred embodiment of the present invention;
the automatic encoder comprises a sliding block 1, a supporting column 2, a rack 3, a rack fixing frame 4, a gear set 5, a gear with a key 501, a spring 502, a backlash eliminating gear 503, a bearing seat 6, a base 7, a coupler 8, a transmission shaft 9, an encoder seat 10 and an encoder 11.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 3, a high-precision detection device for a slide position of a servo press, with a detection precision of 0.25 μm, includes a slide 1, a pillar portion 2, a rack 3, a rack holder 4, a gear set 5, a bearing seat 6, a base 7, a coupling 8, a transmission shaft 9, a coder seat 10 and a coder 11; the gear set 5 includes a splined gear 501, a spring 502 and an anti-backlash gear 503.
The rack fixing frame 4 is fixed with the sliding block 1 through a standard part, then the rack 3 is fixedly connected with the rack fixing frame 4 through the standard part, meanwhile, the bearing seat 6 and the encoder seat 10 are fixed on the base 7 through the standard part, then the transmission shaft 9 penetrates through the bearing seat 6 to be fixed with a bearing, is connected with the encoder 11 through the coupler 8, fixes the encoder 11 and the encoder seat 11, forms a gear set 5 by the key gear 501 and the backlash eliminating gear 503 through the standard part and the spring 502, then fixes the gear set 5 at the other end of the transmission shaft 8 through the key and the standard part, finally fixes the base 7 and the pillar part 2, and guarantees the meshing of the gear set 5 and the rack 3 and no gear backlash by adjusting the position of the base 7 on the pillar part 2 and the tensioning degree of the spring 502.
The working principle of the preferred embodiment is as follows:
in the installation process of the detection device, the rack 3 fixing frame 4 is formed by connecting and fixing a section bar and a standard part, then the rack fixing frame 4 and the rack 3 are connected together through the standard part, and then are connected and fixed with the sliding block 1 through the standard part; the encoder 11 and the encoder seat 10 are fixed together, the bearing seat 6 and the transmission shaft 9 are connected together, the two parts are connected through the coupler 8 to form a whole, and then the bearing seat 6 and the encoder seat 10 are fixed on the base 7 to ensure that relative movement does not exist between the two parts; then fixing the gear set 5 at one end of the transmission shaft 9, and adjusting the angle of the gear set 5 by comparing with the rack 3 to enable the gear set 5 and the rack 3 to be in a relatively proper position; finally the base 7 is fixed to the mast portion 2.
The working principle of the preferred embodiment is as follows:
because slider 1 has relative motion for pillar part 2, rack 3 fixes on slider 1 simultaneously, through the relative motion between rack 3 and the gear train 5, makes slider 1's linear motion become the rotary motion of gear train 5, through the drive of transmission shaft 9 and shaft coupling 8, makes encoder 11 also follow rotary motion.
The rack 3 is fixed with the sliding block 1 into a whole through the rack fixing frame 4, when the sliding block 1 moves up and down, the rack 3 is driven to move up and down, the rack 3 and the gear set 5 convert the linear motion of the rack 3 into the rotary motion of the gear set 5 through a gear-rack pair, the gear set 5 transmits the rotary motion to the transmission shaft 9 through a key, and the rotary motion is transmitted to the encoder 11 through the coupler 8 through the support of the bearing seat 6, because the resolution of one circle of rotation of the encoder 11 is 1000000, and the up-and-down movement distance of the rack 3 is 250mm when the gear set 5 rotates one circle, the detection precision of the detection device is 0.25 mu m.
The device has the advantages of simple structure, simple manufacture, capability of improving the detection precision of the position of the slide block of the servo press, good workpiece interchangeability, simple installation, improvement of the control precision of the servo press and better guarantee of the repeated motion precision of the slide block.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1. A high accuracy detection device of servo press slider position which characterized in that includes at least:
a rack (3) connected with the sliding block (1) through a rack fixing frame (4);
a gear set (5) engaged with the rack (3);
a transmission shaft (9) connected with the gear set (5);
an encoder (11) for detecting the motion of the transmission shaft (9); wherein:
the transmission shaft (9) is connected with the encoder (11) through a coupler (8).
2. High precision detection device of servo press ram position according to claim 1, characterized in that the encoder (11) is connected to the base (7) by means of an encoder seat (10).
3. A high accuracy detection device of servo press ram position according to claim 1, characterized in that the gear set (5) comprises a keyed gear (501), a spring (502) and an anti-backlash gear (503), and the up-and-down movement of the rack (3) drives the rotational movement of the gear set (5) and thus the rotational movement of the transmission shaft (9).
4. High precision detection device of servo press ram position according to claim 1, characterized in that the transmission shaft (9) is fixed on the base (7) by means of a bearing block (6).
5. High precision detection device of servo press ram position according to any of claims 1-4, characterized in that the encoder (11) is a grating encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925339.5A CN110667169A (en) | 2019-09-27 | 2019-09-27 | High-precision detection device for position of slide block of servo press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925339.5A CN110667169A (en) | 2019-09-27 | 2019-09-27 | High-precision detection device for position of slide block of servo press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110667169A true CN110667169A (en) | 2020-01-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910925339.5A Withdrawn CN110667169A (en) | 2019-09-27 | 2019-09-27 | High-precision detection device for position of slide block of servo press |
Country Status (1)
| Country | Link |
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| CN (1) | CN110667169A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960546A (en) * | 2021-03-27 | 2021-06-15 | 山东伟达环保机械有限公司 | Detect mechanism of travelling crane gear walking for aerated concrete production |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930031A (en) * | 2004-03-11 | 2007-03-14 | 奥托立夫开发公司 | A gear arrangement |
| CN201026678Y (en) * | 2007-04-05 | 2008-02-27 | 江苏国力锻压机床有限公司 | Multi-cylinder linkage synchronous testing apparatus of hydraulic press |
| CN201633224U (en) * | 2010-08-16 | 2010-11-17 | 郑州振东耐磨材料有限公司 | High-accuracy screw press |
| CN101913267A (en) * | 2010-07-22 | 2010-12-15 | 湖州机床厂有限公司 | Position detecting device for sliding block of hydraulic press |
| JP2013022610A (en) * | 2011-07-20 | 2013-02-04 | Sumitomo Heavy Industries Techno-Fort Co Ltd | Slide position detector and press machine |
| CN107643061A (en) * | 2017-11-08 | 2018-01-30 | 吕言 | A kind of press ram detection means and detection method and forcing press |
-
2019
- 2019-09-27 CN CN201910925339.5A patent/CN110667169A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930031A (en) * | 2004-03-11 | 2007-03-14 | 奥托立夫开发公司 | A gear arrangement |
| CN201026678Y (en) * | 2007-04-05 | 2008-02-27 | 江苏国力锻压机床有限公司 | Multi-cylinder linkage synchronous testing apparatus of hydraulic press |
| CN101913267A (en) * | 2010-07-22 | 2010-12-15 | 湖州机床厂有限公司 | Position detecting device for sliding block of hydraulic press |
| CN201633224U (en) * | 2010-08-16 | 2010-11-17 | 郑州振东耐磨材料有限公司 | High-accuracy screw press |
| JP2013022610A (en) * | 2011-07-20 | 2013-02-04 | Sumitomo Heavy Industries Techno-Fort Co Ltd | Slide position detector and press machine |
| CN107643061A (en) * | 2017-11-08 | 2018-01-30 | 吕言 | A kind of press ram detection means and detection method and forcing press |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960546A (en) * | 2021-03-27 | 2021-06-15 | 山东伟达环保机械有限公司 | Detect mechanism of travelling crane gear walking for aerated concrete production |
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Application publication date: 20200110 |
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