CN107228616B - Form and position tolerance detection device - Google Patents
Form and position tolerance detection device Download PDFInfo
- Publication number
- CN107228616B CN107228616B CN201710406472.0A CN201710406472A CN107228616B CN 107228616 B CN107228616 B CN 107228616B CN 201710406472 A CN201710406472 A CN 201710406472A CN 107228616 B CN107228616 B CN 107228616B
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- base
- displacement
- slide bar
- transmission mechanism
- round bar
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
Abstract
The invention provides a form and position tolerance detection device which comprises a base, a rotary positioning mechanism and a detection mechanism, wherein the detection mechanism comprises a first displacement transmission mechanism, a second displacement transmission mechanism, a displacement sensor, an infrared detector and a solenoid type sensor, the first displacement transmission mechanism and the second displacement transmission mechanism are symmetrically arranged on the base relative to the rotary positioning mechanism, the infrared detector comprises an infrared emitter and an infrared receiver, the infrared emitter and the displacement sensor are arranged on the first displacement transmission mechanism in a moving mode in the vertical direction, the infrared receiver is arranged on the second displacement transmission mechanism in a moving mode in the vertical direction, and the solenoid type sensor is arranged on the first displacement transmission mechanism. The invention adopts the solenoid type sensor to measure the maximum value and the minimum value of the voltage of the workpiece to be measured in the process of rotating for one circle, and converts the maximum value and the minimum value of the up-and-down displacement distance of the armature, thereby obtaining the form and position tolerance value.
Description
Technical Field
The invention belongs to the technical field of measurement, and particularly relates to a form and position tolerance detection device.
Background
At present, the measurement of form and position tolerance uses the traditional vernier caliper and the micrometer to meet the measurement requirement, on one hand, the measurement method is more traditional, on the other hand, the non-specification of manual operation can cause the inaccuracy of the measurement result, further can cause the disqualification of the product, increases the cost, and the environmental factors also have influence on the measurement error. In addition, small and medium-sized enterprises cannot buy precise detection instruments, so that the development of the enterprises is greatly limited.
Therefore, a form and position tolerance detection device with simple structure, convenient operation, good positioning precision and high measurement precision is needed.
Disclosure of Invention
The invention provides a form and position tolerance detection device, aiming at solving the defects of high labor intensity and low measurement precision in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a form and position tolerance detection device, comprising:
a base;
the rotary positioning mechanism comprises a main shaft box, a driving motor, a positioning clamp and a tip clamp, wherein the main shaft box is fixedly arranged on the base and is positioned at one end of the base in the length direction, the driving motor is arranged in the main shaft box, the positioning clamp is arranged on a box body of the main shaft box and is in transmission connection with an output shaft of the driving motor, and the tip clamp is movably arranged on the base in the length direction of the base;
detection mechanism, including first displacement drive mechanism, second displacement drive mechanism, displacement sensor, infrared detector and solenoid sensor, first displacement drive mechanism and relative rotation positioning mechanism symmetry with second displacement drive mechanism set up on the base, infrared detector includes infrared emitter and infrared receiver, infrared emitter and displacement sensor remove in vertical direction and set up on first displacement drive mechanism, infrared receiver removes in vertical direction and sets up on second displacement drive mechanism, solenoid sensor sets up on first displacement drive mechanism.
Preferably, first displacement drive mechanism includes the first slide bar support of two, first slide bar, first round bar, first sliding sleeve and sliding block, the first slide bar support of two sets up on the base and is located the both ends of base length direction, first sliding rod connection sets up between the first slide bar support of two, the vertical setting of first round bar and its removal set up on first slide bar, the sliding block is located the top of first sliding sleeve and the two removes and sets up on first round bar, displacement sensor and infrared emitter set up on first sliding sleeve.
Preferably, the second displacement transmission mechanism comprises two second slide bar supports, a second slide bar, a second round bar and a second sliding sleeve, the two second slide bar supports are arranged on the base and located at two ends of the base in the length direction, the second slide bar is connected and arranged between the two second slide bar supports, the second round bar is vertically arranged and movably arranged on the second slide bar, the second sliding sleeve is movably arranged on the second round bar, and the infrared receiver is arranged on the second sliding sleeve.
Preferably, still be equipped with elasticity locating part, elasticity locating part includes spacing piece, spring coil and spacing piece down, goes up spacing piece and spacing piece thread bush down and locates the top of first round bar, second round bar, and the spring coil cover is located on first round bar, the second round bar and is located between spacing piece and the spacing piece down.
Preferably, the positioning fixture comprises a pneumatic three-jaw chuck and an angle sensor, the pneumatic three-jaw chuck is arranged on the box body of the spindle box and is in transmission connection with an output shaft of the driving motor, and the angle sensor is arranged at the center of the pneumatic three-jaw chuck.
Preferably, the center fixture comprises a center support, a locking mechanism and a rotating mechanism, a center part is arranged on the center support, a sliding groove is arranged on the base and located between the center support and the spindle box, the length direction of the sliding groove is consistent with the length direction of the base, the center support is movably arranged on the sliding groove, the locking mechanism is arranged on the center support, and the rotating mechanism is arranged on the center support.
Preferably, a computer is further arranged and is in control connection with the driving motor, the first displacement transmission mechanism, the second displacement transmission mechanism, the displacement sensor, the infrared detector and the solenoid sensor.
Has the advantages that: compared with the prior art, the workpiece to be measured is fixed on the positioning clamp and is tightly propped by the tip clamp, the maximum value and the minimum value of the voltage of the workpiece to be measured in the process of rotating for one circle are measured by adopting the solenoid type sensor and are converted into the maximum value and the minimum value of the vertical displacement distance of the armature, so that the form and position tolerance value of the workpiece to be measured is obtained, the structure is simple and reasonable, the operation is convenient, the positioning precision is good, and the measurement precision is high.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a working schematic diagram of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
To achieve the object of the present invention, as shown in fig. 1, in one embodiment of the present invention, there is provided a form and position tolerance detecting apparatus including:
a base 1;
the rotary positioning mechanism comprises a spindle box 3, a driving motor, a positioning clamp and a tip clamp, wherein the spindle box 3 is fixedly arranged on the base 1 and is positioned at one end of the base 1 in the length direction, the driving motor is arranged in the spindle box 3, the positioning clamp is arranged on a box body of the spindle box 3 and is in transmission connection with an output shaft of the driving motor, and the tip clamp is movably arranged on the base along the length direction of the base;
detection mechanism, including first displacement drive mechanism, second displacement drive mechanism, displacement sensor 11, infrared detector and solenoid sensor 17, first displacement drive mechanism and second displacement drive mechanism relative rotation positioning mechanism symmetry set up on base 1, infrared detector includes infrared emitter 12 and infrared receiver 18, infrared emitter 12 and displacement sensor 11 remove at vertical direction and set up on first displacement drive mechanism, infrared receiver 18 removes at vertical direction and sets up on second displacement drive mechanism, solenoid sensor 17 sets up on first displacement drive mechanism.
Compared with the prior art, the method has the advantages that the workpiece to be measured is fixed on the positioning fixture and is tightly propped by the tip fixture, the maximum value and the minimum value of the voltage of the workpiece to be measured in the process of rotating for one circle are measured by the solenoid type sensor and are converted into the maximum value and the minimum value of the vertical displacement distance of the armature, so that the form and position tolerance value of the workpiece to be measured is obtained, the structure is simple and reasonable, the operation is convenient, the positioning precision is good, and the measurement precision is high.
In order to further optimize the implementation effect of the present invention, in another embodiment of the present invention, based on the foregoing, the first displacement transmission mechanism includes two first slide bar supports 6, a first slide bar 7, a first round bar 8, a first sliding sleeve 10 and a sliding block 9, the two first slide bar supports 6 are disposed on the base 1 and located at two ends of the base 1 in the length direction, the first slide bar 7 is connected and disposed between the two first slide bar supports 6, the first round bar 8 is vertically disposed and movably disposed on the first slide bar 7, the sliding block 9 is located above the first sliding sleeve 10 and movably disposed on the first round bar 8, the displacement sensor 11 and the infrared emitter 12 are disposed on the first sliding sleeve 10, and the solenoid sensor 17 is disposed on the sliding block 9.
The second displacement transmission mechanism comprises two second slide bar supports, a second slide bar 71, a second round bar 81 and a second sliding sleeve 101, the two second slide bar supports are arranged on the base 1 and located at two ends of the base 1 in the length direction, the second slide bar 71 is connected and arranged between the two second slide bar supports, the second round bar 81 is vertically arranged and movably arranged on the second slide bar 71, the second sliding sleeve 101 is movably arranged on the second round bar 81, and the infrared receiver 18 is arranged on the second sliding sleeve 101.
The positioning fixture comprises a pneumatic three-jaw chuck 4 and an angle sensor 5, the pneumatic three-jaw chuck 4 is arranged on a box body of the spindle box 3 and is in transmission connection with an output shaft of a driving motor, and the angle sensor 5 is arranged at the center of the pneumatic three-jaw chuck 4.
The centre clamp comprises a centre support 13, a locking mechanism 15 and a rotating mechanism 14, a centre point part is arranged on the centre support 13, a sliding groove 16 is arranged on the base 1 and between the centre support 13 and the spindle box 3, the length direction of the sliding groove 16 is consistent with that of the base 1, the centre support 13 is movably arranged on the sliding groove 16, the locking mechanism 15 is arranged on the centre support 13, and the rotating mechanism 14 is arranged on the centre support 13.
In order to further optimize the implementation effect of the present invention, in another embodiment of the present invention, on the basis of the foregoing, an elastic limiting member is further provided, the elastic limiting member includes an upper limiting block, a spring ring and a lower limiting block, the upper limiting block and the lower limiting block are threadedly sleeved on the tops of the first round rod and the second round rod, and the spring ring is sleeved on the first round rod and the second round rod and is located between the upper limiting block and the lower limiting block.
Adopt preferred technical scheme, increase elasticity locating part, inject the stroke of sliding block, first sliding sleeve and second sliding sleeve.
In order to further optimize the implementation effect of the present invention, in another embodiment of the present invention, on the basis of the foregoing, a computer 2 is further provided, and the computer 2 is in control connection with the driving motor, the first displacement transmission mechanism, the second displacement transmission mechanism, the displacement sensor, the infrared detector and the solenoid sensor, so that automatic control is realized, and the present invention is more convenient.
The working principle of the present invention is further explained with reference to the attached figure 2:
and the instructions sent by the computer are operated by the PLC. During detection, the solenoid sensor, the infrared emitter, the displacement sensor and the infrared receiver send working instructions through a computer, and the solenoid sensor, the infrared emitter, the displacement sensor and the infrared receiver move upwards for a certain distance to be larger than the outer cylindrical surface of a workpiece to be measured; under the initial state, the center of the infrared transmitter, the center of the infrared receiver and the tip of the solenoid type sensor measuring rod are on the same straight line, then a clamping instruction is sent to the pneumatic three-jaw chuck through the computer to clamp a workpiece to be measured, the workpiece to be measured is further jacked through the rotating mechanism, and the position of the tip support is locked through the locking mechanism. Then the computer sends a working instruction to the infrared transmitter, because the centers of the infrared transmitter and the infrared receiver are on the same straight line, the infrared receiver can always receive an infrared signal at this time, the computer further sends a downward movement instruction to the first sliding sleeve and the second sliding sleeve, after the first sliding sleeve and the second sliding sleeve move for a certain distance, the infrared receiver can not receive the signal, the work is stopped, and at this time, the center lines of the infrared transmitter and the infrared receiver are known to be just contacted with the outer cylindrical surface of the workpiece to be measured; the displacement sensor can know the moving distance, and further the computer sends a downward moving instruction to the sliding block, so long as the downward moving instruction is the same as the distance of the displacement sensor, the tip of the measuring rod of the solenoid type sensor can be ensured to just contact the outer cylindrical surface of the workpiece to be measured; and a further computer sends a working instruction to the spindle box, the pneumatic three-jaw chuck drives the workpiece to be detected to start rotating, and the pneumatic three-jaw chuck stops working when the angle sensor detects that the workpiece rotates 360 degrees. In the process that a workpiece to be measured rotates for 360 degrees, the length of an armature access coil connected with a side head in the solenoid type sensor is changed, so that the passing inductance value is changed, further, the voltage is changed, the maximum value and the minimum value of the voltage in the process of rotating for 360 degrees can be displayed by a computer, further, the maximum value and the minimum value of the vertical displacement distance of the armature can be converted into through calculation, further, the form and position tolerance value of the workpiece to be measured can be obtained, and the form and position tolerance of cylindrical surfaces with different diameters of the workpiece to be measured can be measured by repeating the above operation mode.
It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "front", "symmetrical", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are only for the purpose of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Further, the terms "two" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated elements, and thus, the number of hexagon bolts in the present invention is not limited to the number in the present invention, and may be plural. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, such as to include fixed, removable, or integral connections, either mechanical or electrical, either direct or indirect, or through an intermediate media profile, either internal or indirect communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. A form and position tolerance sensing device, comprising:
a base;
the rotary positioning mechanism comprises a main shaft box, a driving motor, a positioning clamp and a tip clamp, wherein the main shaft box is fixedly arranged on the base and is positioned at one end of the base in the length direction, the driving motor is arranged in the main shaft box, the positioning clamp is arranged on a box body of the main shaft box and is in transmission connection with an output shaft of the driving motor, and the tip clamp is movably arranged on the base in the length direction of the base;
the detection mechanism comprises a first displacement transmission mechanism, a second displacement transmission mechanism, a displacement sensor, an infrared detector and a solenoid sensor, wherein the first displacement transmission mechanism and the second displacement transmission mechanism are symmetrically arranged on the base relative to the rotary positioning mechanism;
first displacement drive mechanism includes the first slide bar support of two, first slide bar, first round bar, first sliding sleeve and sliding block, the first slide bar support of two sets up on the base and is located the both ends of base length direction, first sliding rod connection sets up between the first slide bar support of two, the vertical setting of first round bar and its removal set up on first slide bar, the sliding block is located the top of first sliding sleeve and the two removes and sets up on first round bar, displacement sensor and infrared emitter set up on first sliding sleeve, solenoid sensor sets up on the sliding block.
2. A geometric tolerance detecting device according to claim 1, wherein the second displacement transmission mechanism includes two second slide bar supports, a second slide bar, a second round bar and a second sliding sleeve, the two second slide bar supports are disposed on the base and located at two ends of the base in the length direction, the second slide bar is connected and disposed between the two second slide bar supports, the second round bar is vertically disposed and movably disposed on the second slide bar, the second sliding sleeve is movably disposed on the second round bar, and the infrared receiver is disposed on the second sliding sleeve.
3. The geometric tolerance detecting device according to claim 2, further comprising an elastic limiting member, wherein the elastic limiting member comprises an upper limiting block, a spring ring and a lower limiting block, the upper limiting block and the lower limiting block are threadedly sleeved on the top of the first round bar and the top of the second round bar, and the spring ring is sleeved on the first round bar and the second round bar and located between the upper limiting block and the lower limiting block.
4. A form and position tolerance detecting device according to claim 1, wherein the positioning jig includes a pneumatic three-jaw chuck and an angle sensor, the pneumatic three-jaw chuck is disposed on the housing of the main spindle box and is drivingly connected to the output shaft of the driving motor, and the angle sensor is disposed at the center of the pneumatic three-jaw chuck.
5. The form and position tolerance detecting device according to claim 1, wherein the tip clamp includes a tip support, a locking mechanism and a rotating mechanism, a tip portion is provided on the tip support, a slide groove is provided on the base between the tip support and the spindle box, a length direction of the slide groove is identical to a length direction of the base, the tip support is movably provided on the slide groove, the locking mechanism is provided on the tip support, and the rotating mechanism is provided on the tip support.
6. A form and position tolerance detecting device according to claim 1, characterized in that a computer is further provided, and the computer is in control connection with the driving motor, the first displacement transmission mechanism, the second displacement transmission mechanism, the displacement sensor, the infrared ray detector and the solenoid type sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710406472.0A CN107228616B (en) | 2017-06-02 | 2017-06-02 | Form and position tolerance detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710406472.0A CN107228616B (en) | 2017-06-02 | 2017-06-02 | Form and position tolerance detection device |
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| CN107228616A CN107228616A (en) | 2017-10-03 |
| CN107228616B true CN107228616B (en) | 2020-02-14 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107953286B (en) * | 2017-12-29 | 2020-07-14 | 芜湖中集瑞江汽车有限公司 | Assembling tool and method for front and rear charging barrels of powder tank truck |
| CN112461085A (en) * | 2020-11-06 | 2021-03-09 | 一汽解放汽车有限公司 | Detection device for detecting workpiece hole |
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| CN102538700B (en) * | 2011-12-02 | 2014-01-15 | 合肥工业大学 | Screw rotor type surface profile error measurement instrument |
| CN106556345B (en) * | 2015-09-30 | 2019-09-20 | 宝山钢铁股份有限公司 | The tower-shaped height measuring device of vertical steel coils and method |
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|---|---|---|---|---|
| JP2008039707A (en) * | 2006-08-09 | 2008-02-21 | Ricoh Co Ltd | Device for measuring deflection of measuring object |
| JP2010256277A (en) * | 2009-04-28 | 2010-11-11 | Nagoya Institute Of Technology | Method and apparatus for measuring outer shape of workpiece |
| CN203642883U (en) * | 2013-11-25 | 2014-06-11 | 中国农业机械化科学研究院 | Online detecting apparatus for detecting welding roundness of threshing cylinder |
| CN203964806U (en) * | 2014-06-11 | 2014-11-26 | 贵州航天工业学校 | A kind of form and position tolerance pick-up unit |
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