CN110814702B - Automatic pointer pressing system and method based on high feedback - Google Patents
Automatic pointer pressing system and method based on high feedback Download PDFInfo
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- CN110814702B CN110814702B CN201911142700.3A CN201911142700A CN110814702B CN 110814702 B CN110814702 B CN 110814702B CN 201911142700 A CN201911142700 A CN 201911142700A CN 110814702 B CN110814702 B CN 110814702B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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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
- 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
- G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
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- Engineering & Computer Science (AREA)
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Abstract
基于高度反馈的全自动指针压装系统及方法，涉及仪表装配技术领域。本发明是为了解决每套仪表由于各自结构件间隙、电机轴位置等因素导致塑料件间隙无法完全一致，进而导致指针帽与表盘间隙偏差较大的问题。采用实际表盘高度反馈于压装高度，将压力与压装深度进行了量化模型建立，将压装深度分为5个阶段，并分别建立与压力的关系。本发明能够保证压力和指针高度均满足控制要求，并降低压装过程中指针帽与表盘间隙偏差。
A fully automatic pointer pressing system and method based on high feedback relate to the technical field of instrument assembly. The invention is to solve the problem that the gap between the plastic parts of each set of instruments cannot be completely consistent due to factors such as the gap of their respective structural parts, the position of the motor shaft, etc., which leads to a large gap between the pointer cap and the dial. Using the actual dial height to feed back to the pressing height, a quantitative model of the pressure and the pressing depth is established, and the pressing depth is divided into 5 stages, and the relationship with the pressure is established respectively. The invention can ensure that both the pressure and the pointer height meet the control requirements, and reduce the gap deviation between the pointer cap and the dial during the pressing process.
Description
Technical Field
The invention belongs to the technical field of instrument assembly, and particularly relates to pointer press mounting of an instrument.
Background
Pointer press fitting is an important process in automobile instrument assembly, and all production enterprises are dedicated to research and develop the most reliable press fitting mode to ensure the assembly quality. Most of the existing pointer press mounting adopts a mode of fixing press mounting height, and the gaps of plastic parts of each set of instrument are considered to be consistent. However, in practical situations, the gaps between the plastic parts of each set of instrument cannot be completely consistent due to the gaps between the respective structural components, the position of the motor shaft and the like. Along with the continuous promotion of host computer factory to product quality requirement, the mode of fixed high pressure equipment can lead to pointer cap and dial plate clearance deviation great, can't satisfy the host computer factory requirement.
Disclosure of Invention
The invention provides a full-automatic pointer press-fitting system and method based on height feedback, aiming at solving the problem that the gap between a pointer cap and a dial plate is large in deviation because the gap between plastic parts of each set of instrument cannot be completely consistent due to factors such as the gap between respective structural parts and the position of a motor shaft.
The full-automatic pointer press-fitting method based on height feedback comprises the following steps:
the preparation method comprises the following steps: the laser range finder 1 is arranged on the manipulator truss, so that the laser output end of the laser range finder 1 is right against the upper surface of the instrument panel 3 to be pressed,
the method comprises the following steps: the manipulator truss is utilized to drive the pointer cap 2 to carry out press mounting, the distance between the laser output end of the laser range finder 1 and the instrument panel 3 is collected in real time and is used as the pointer press mounting depth,
step two: calculating the press fitting pressure of the pointer in real time according to the press fitting depth of the pointer,
step three: and in the standard pointer press-fitting depth range, when the pointer press-fitting pressure reaches the standard range, the press-fitting is stopped.
The following steps are also included after the third step:
step four: the distance between the laser output end of the laser range finder 1 and the top of the pointer cap 2 is collected,
step five: the distance between the laser output end of the laser range finder 1 and the top of the pointer cap 2 is differed from the pointer press-fitting depth,
step six: and D, judging whether the difference value obtained in the step five is within the standard range, if so, judging that the press fitting is qualified, and otherwise, judging that the press fitting is unqualified.
In the second step, the pointer press-fitting pressure is calculated according to the following formula:
y＝190 2.2≤x<3，
wherein y represents the press-fitting pressure and x represents the press-fitting depth.
In the third step, the standard pointer press-mounting depth range is 0 mm-1.8 mm, and the standard pointer press-mounting pressure range is 40N-120N.
Full-automatic pointer pressure equipment system based on height feedback includes the following unit:
a preparation unit: the posture of the manipulator truss is adjusted to ensure that the laser output end of the laser range finder 1 positioned on the manipulator truss is just above the upper surface of the instrument panel 3 to be pressed,
press-fitting a depth acquisition unit: the driving manipulator truss drives the pointer cap 2 to carry out press fitting, the distance between the laser output end of the laser range finder 1 and the instrument panel 3 is collected in real time and is used as the pointer press fitting depth,
a pressure calculation unit: calculating the press fitting pressure of the pointer in real time according to the press fitting depth of the pointer,
a press fitting judgment unit: and in the standard pointer press-fitting depth range, when the pointer press-fitting pressure reaches the standard range, the press-fitting is stopped.
Further, the system further comprises the following units:
a distance acquisition unit: after the press mounting is stopped, the distance between the laser output end of the laser range finder 1 and the top of the pointer cap 2 is collected,
a difference making unit: the distance between the laser output end of the laser range finder 1 and the top of the pointer cap 2 is differed from the pointer press-fitting depth,
a detection unit: judging whether the difference value obtained by the difference making unit is within the standard range,
when the difference value is within the standard range, the press mounting is qualified,
and when the difference value is not within the standard range, the press fitting is unqualified.
In the existing instrument pointer press-fitting technology, the press-fitting height of each set of instruments is inconsistent due to the accumulated assembly error and the deviation of plastic parts. In order to solve the problem, the actual dial height is fed back to the press mounting height, the pressure and the press mounting depth are quantitatively modeled, the press mounting depth is divided into 5 stages, and the relationship between the press mounting depth and the pressure is respectively established. The invention can ensure that the pressure and the height of the pointer meet the control requirements, and reduce the gap deviation between the pointer cap 2 and the dial plate in the press mounting process.
Drawings
Fig. 1 is a schematic diagram of the position relationship between a laser range finder and a pointer cap and a dashboard, wherein the laser range finder 1, the pointer cap 2 and the dashboard 3 are shown in the figure;
FIG. 2 is a graph of press fit depth versus pressure;
FIG. 3 is a flow chart of a fully automatic pointer press fitting method based on height feedback.
Detailed Description
The first embodiment is as follows: specifically describing the embodiment with reference to fig. 1 to 3, the method for press-fitting a full-automatic pointer based on height feedback in the embodiment first judges whether the information of the previous work station is qualified, and when the information of the previous work station is qualified, a preparation step is started, otherwise, an alarm signal is sent out;
the method comprises the following steps:
the preparation method comprises the following steps: the laser range finder 1 is arranged on the manipulator truss, so that the laser output end of the laser range finder 1 is right against the upper surface of the instrument panel 3 to be pressed,
the method comprises the following steps: the manipulator truss is utilized to drive the pointer cap 2 to carry out press mounting, the distance between the laser output end of the laser range finder 1 and the instrument panel 3 is collected in real time, and the distance is used as the pointer press mounting depth;
step two is performed 50ms after the first,
step two: calculating the press fitting pressure of the pointer in real time according to the press fitting depth of the pointer,
step three: in the standard pointer press-fitting depth range, when the pointer press-fitting pressure reaches the standard range, the press-fitting is stopped,
step four: the distance between the laser output end of the laser range finder 1 and the top of the pointer cap 2 is collected,
step five: the distance z between the laser output end of the laser range finder 1 and the top of the pointer cap 2 is differed from the pointer press-fitting depth,
step six: and D, judging whether the difference value obtained in the step five is within the standard range, if so, judging that the press fitting is qualified, and otherwise, judging that the press fitting is unqualified.
Specifically, in the second step, the pointer press-fitting pressure is calculated according to the following formula:
y＝190 2.2≤x<3，
wherein y represents the press-fitting pressure and x represents the press-fitting depth.
Specifically, x is more than or equal to 0mm and less than or equal to 1.8mm in the standard pointer press-fitting depth range, and y is more than or equal to 40N and less than or equal to 120N in the standard pointer press-fitting pressure range.
In the embodiment, the press-fitting depth is divided into 5 stages, and the corresponding relations with the pressure are respectively established, so that the adaptability adjustment is performed in a segmented manner, and the press-fitting process is more accurate. According to the embodiment, press fitting is completed after the third step, then self-checking is carried out by utilizing the press fitting depth, whether the pressed pile is qualified or not is judged, and the product quality is further ensured.
The second embodiment is as follows: the full-automatic pointer press-fitting system based on height feedback in the embodiment comprises the following units:
a starting unit: when the information of the previous work station is qualified, starting a preparation unit; and when the information of the previous work station is unqualified, starting an alarm.
A preparation unit: the posture of the manipulator truss is adjusted to ensure that the laser output end of the laser range finder 1 positioned on the manipulator truss is just above the upper surface of the instrument panel 3 to be pressed,
press-fitting a depth acquisition unit: the driving manipulator truss drives the pointer cap 2 to carry out press fitting, the distance between the laser output end of the laser range finder 1 and the instrument panel 3 is collected in real time and is used as the pointer press fitting depth,
a pressure calculation unit: calculating the press fitting pressure of the pointer in real time according to the press fitting depth of the pointer,
a press fitting judgment unit: in the standard pointer press-fitting depth range, when the pointer press-fitting pressure reaches the standard range, the press-fitting is stopped,
a distance acquisition unit: after the press mounting is stopped, the distance between the laser output end of the laser range finder 1 and the top of the pointer cap 2 is collected,
a difference making unit: the distance between the laser output end of the laser range finder 1 and the top of the pointer cap 2 is differed from the pointer press-fitting depth,
a detection unit: judging whether the difference value obtained by the difference making unit is within the standard range,
when the difference value is within the standard range, the press mounting is qualified,
and when the difference value is not within the standard range, the press fitting is unqualified.
Specifically, in the pressure calculation unit, the pointer press-fitting pressure is calculated according to the following formula:
y＝190 2.2≤x<3，
wherein y represents the press-fitting pressure and x represents the press-fitting depth.
Specifically, in the press-fitting judgment unit, x is more than or equal to 0mm and less than or equal to 1.8mm in the press-fitting depth range of the standard pointer, and y is more than or equal to 40N and less than or equal to 120N in the standard range of the press-fitting pressure of the pointer.
Claims (8)
1. The full-automatic pointer press-fitting method based on height feedback is characterized by comprising the following steps of:
the preparation method comprises the following steps: the laser range finder (1) is arranged on the manipulator truss, so that the laser output end of the laser range finder (1) is right at the upper surface of the instrument panel (3) to be pressed,
the method comprises the following steps: the manipulator truss is utilized to drive the pointer cap (2) to carry out press fitting, the distance between the laser output end of the laser range finder (1) and the instrument panel (3) is collected in real time and is used as the pointer press fitting depth,
step two: calculating the press fitting pressure of the pointer in real time according to the press fitting depth of the pointer,
step three: in the standard pointer press-fitting depth range, when the pointer press-fitting pressure reaches the standard range, the press-fitting is stopped;
in the second step, the pointer press-fitting pressure is calculated according to the following formula:
y＝190 2.2≤x<3，
wherein y represents the press-fitting pressure and x represents the press-fitting depth.
2. The full-automatic pointer press-fitting method based on height feedback as claimed in claim 1, further comprising the following steps after step three:
step four: the distance between the laser output end of the laser range finder (1) and the top of the pointer cap (2) is collected,
step five: the distance between the laser output end of the laser range finder (1) and the top of the pointer cap (2) is differed from the pointer press-fitting depth,
step six: and D, judging whether the difference value obtained in the step five is within the standard range, if so, judging that the press fitting is qualified, and otherwise, judging that the press fitting is unqualified.
3. The full-automatic pointer press-fitting method based on height feedback as claimed in claim 1, wherein in step three, the standard pointer press-fitting depth range is 0mm ≤ x ≤ 1.8mm, and the standard range of pointer press-fitting pressure is 40N ≤ y ≤ 120N.
4. The full-automatic pointer press-fitting method based on height feedback as claimed in claim 1, wherein before the preparation step, it is first judged whether the information of the previous work station is qualified, when the information of the previous work station is qualified, the preparation step is started, otherwise, an alarm signal is sent out.
5. Full-automatic pointer pressure equipment system based on height feedback, its characterized in that includes the following unit:
a preparation unit: the posture of the manipulator truss is adjusted to ensure that the laser output end of the laser range finder (1) positioned on the manipulator truss is just above the upper surface of the instrument panel (3) to be pressed,
press-fitting a depth acquisition unit: the manipulator truss is driven to drive the pointer cap (2) to carry out press fitting, the distance between the laser output end of the laser range finder (1) and the instrument panel (3) is collected in real time and is used as the pointer press fitting depth,
a pressure calculation unit: calculating the press fitting pressure of the pointer in real time according to the press fitting depth of the pointer,
a press fitting judgment unit: in the standard pointer press-fitting depth range, when the pointer press-fitting pressure reaches the standard range, the press-fitting is stopped;
in the pressure calculation unit, the pointer press-fitting pressure is calculated according to the following formula:
y＝190 2.2≤x<3，
wherein y represents the press-fitting pressure and x represents the press-fitting depth.
6. The full-automatic pointer press-fitting system based on height feedback as claimed in claim 5, further comprising the following units:
a distance acquisition unit: after the press mounting is stopped, the distance between the laser output end of the laser range finder (1) and the top of the pointer cap (2) is collected,
a difference making unit: the distance between the laser output end of the laser range finder (1) and the top of the pointer cap (2) is differed from the pointer press-fitting depth,
a detection unit: judging whether the difference value obtained by the difference making unit is within the standard range,
when the difference value is within the standard range, the press mounting is qualified,
and when the difference value is not within the standard range, the press fitting is unqualified.
7. The full-automatic pointer press-fitting system based on height feedback as claimed in claim 5, wherein in the press-fitting judgment unit, the standard pointer press-fitting depth range is 0mm ≤ x ≤ 1.8mm, and the standard range of pointer press-fitting pressure is 40N ≤ y ≤ 120N.
8. The full-automatic pointer press-fitting system based on height feedback as claimed in claim 5, further comprising an actuating unit:
when the information of the previous work station is qualified, starting a preparation unit;
and when the information of the previous work station is unqualified, starting an alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911142700.3A CN110814702B (en) | 2019-11-20 | 2019-11-20 | Automatic pointer pressing system and method based on high feedback |
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| CN201911142700.3A CN110814702B (en) | 2019-11-20 | 2019-11-20 | Automatic pointer pressing system and method based on high feedback |
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| CN110814702B true CN110814702B (en) | 2021-03-09 |
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|---|---|---|---|---|
| JPH01199733A (en) * | 1988-02-03 | 1989-08-11 | Mitsubishi Electric Corp | Device for driving retaining pin for semiconductor device housing tube |
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| CN107656453A (en) * | 2017-09-18 | 2018-02-02 | 上海伟世通汽车电子系统有限公司 | Automobile meter pointer press-fit equipment and its method |
| CN207404466U (en) * | 2017-07-19 | 2018-05-25 | 宁波易拓智谱机器人有限公司 | A kind of three axis truss manipulators applied to automobile door plate assembling |
| CN207787434U (en) * | 2017-12-29 | 2018-08-31 | 大连诚和精密工业有限公司 | The diel of punching pressure value can be monitored in real time |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL2969303T3 (en) * | 2013-03-13 | 2020-02-28 | Comau Llc | Process and apparatus for inspecting material jointing |
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- 2019-11-20 CN CN201911142700.3A patent/CN110814702B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01199733A (en) * | 1988-02-03 | 1989-08-11 | Mitsubishi Electric Corp | Device for driving retaining pin for semiconductor device housing tube |
| CN104827267A (en) * | 2015-05-20 | 2015-08-12 | 航天科技控股集团股份有限公司 | Automotive instrument pointer crimping position control module and control method |
| CN105171375A (en) * | 2015-06-27 | 2015-12-23 | 奇瑞汽车股份有限公司 | Engine oil seal assembly and detection automatic complete equipment based on visual technology |
| CN207404466U (en) * | 2017-07-19 | 2018-05-25 | 宁波易拓智谱机器人有限公司 | A kind of three axis truss manipulators applied to automobile door plate assembling |
| CN107656453A (en) * | 2017-09-18 | 2018-02-02 | 上海伟世通汽车电子系统有限公司 | Automobile meter pointer press-fit equipment and its method |
| CN207787434U (en) * | 2017-12-29 | 2018-08-31 | 大连诚和精密工业有限公司 | The diel of punching pressure value can be monitored in real time |
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