CN110814701B - Full-automatic pointer press-fitting system and method based on pressure feedback - Google Patents
Full-automatic pointer press-fitting system and method based on pressure feedback Download PDFInfo
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- CN110814701B CN110814701B CN201911142693.7A CN201911142693A CN110814701B CN 110814701 B CN110814701 B CN 110814701B CN 201911142693 A CN201911142693 A CN 201911142693A CN 110814701 B CN110814701 B CN 110814701B
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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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Abstract
A full-automatic pointer press-fitting system and method based on pressure feedback relates to the technical field of instrument assembly. The invention aims to solve the problems of large pressure deviation and large pointer height deviation caused by a fixed height press fitting mode adopted by the existing instrument press fitting. In order to ensure the consistency of products, the invention comprehensively considers the pressure and the height of the pointer according to the principle that the actual pressure reacts on the height of the pointer in real time, and ensures that the pressure and the height of the pointer meet the control requirements. Meanwhile, a quantitative model is established for the pressure and the press-fitting depth, the press-fitting depth is divided into 5 stages, and the relationship between the press-fitting depth and the pressure is respectively established. The method can reduce the pressure deviation and the pointer height deviation, ensure the consistency of products and improve the quality of the products.
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. The existing pointer press mounting mostly adopts a mode of fixing press mounting height, namely: the friction between the pointer shaft and the motor shaft of each set of instrument is considered to be completely consistent. In actual conditions, each set of instrument cannot be completely consistent due to factors such as structural part gaps, motor shaft positions and the like. Along with the continuous promotion of host computer factory to product quality requirement, the problem that the pressure deviation is big, pointer altitude deviation is big can lead to fixed high pressure equipment mode to 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 pressure feedback, aiming at solving the problems of large pressure deviation and large pointer height deviation caused by a fixed height press-fitting mode adopted by the existing instrument press-fitting.
The full-automatic pointer press-fitting method based on pressure feedback comprises the following steps:
the method comprises the following steps: in the process of pressing the pointer, the pressure between the pointer cap and the end part of the motor shaft is collected in real time,
step two: the press-fitting depth of the corresponding pointer cap is calculated in real time according to the pressure,
step three: and in the standard pressure range, stopping press fitting when the press fitting depth of the pointer cap corresponding to the pressure also reaches the standard range.
And step two, calculating the corresponding press mounting depth X of the pointer cap in real time according to the pressure Y by using the following formula:
when 0 is less than or equal to Y<At the time of 60, the temperature of the furnace is increased,
when Y is more than or equal to 60<At the time of 90 c, the temperature of the furnace is higher,
when Y is more than or equal to 90<At the time of 110, the first time,
when 110 is less than or equal to Y<At the time of 190 f, the user can select,
the standard pressure range is more than or equal to 40N and less than or equal to 120N, and the press-fitting depth of the standard pointer cap is more than or equal to 0mm and less than or equal to X and less than or equal to 1.8 mm.
The method also comprises the following steps before the step one:
and collecting the information of the previous work station, judging whether the information of the previous work station is qualified, and when the information of the previous work station is qualified, starting to execute the step one, otherwise, stopping press mounting.
And after the pressure between the pointer cap and the end part of the motor shaft is collected in the first step, delaying for 50ms and then executing the second step.
Full-automatic pointer pressure equipment system based on pressure feedback includes the following module:
a pressure acquisition module: in the process of pressing the pointer, the pressure between the pointer cap and the end part of the motor shaft is collected in real time,
press-fitting a depth acquisition module: the press-fitting depth of the corresponding pointer cap is calculated in real time according to the pressure,
a judging module: and in the standard pressure range, stopping press fitting when the press fitting depth of the pointer cap corresponding to the pressure also reaches the standard range.
In the press fitting depth acquisition module, the corresponding press fitting depth X of the pointer cap is calculated in real time according to the pressure Y by using the following formula:
when 0 is less than or equal to Y<At the time of 60, the temperature of the furnace is increased,
when Y is more than or equal to 60<At the time of 90 c, the temperature of the furnace is higher,
when Y is more than or equal to 90<At the time of 110, the first time,
when 110 is less than or equal to Y<At the time of 190 f, the user can select,
the standard pressure range is more than or equal to 40N and less than or equal to 120N, and the press-fitting depth of the standard pointer cap is more than or equal to 0mm and less than or equal to X and less than or equal to 1.8 mm.
The device further comprises an initialization module:
collecting the information of the previous work station and judging whether the information of the previous work station is qualified or not,
when the information of the previous work station is qualified, the pressure acquisition module is started,
and when the information of the previous work station is unqualified, driving to alarm.
Still include the time delay module:
after the pressure between the pointer cap and the end part of the motor shaft is collected, the press-fitting depth collecting module is started after 50ms delay.
The invention comprehensively considers the pressure and the pointer height according to the principle that the actual pressure reacts on the height of the pressing pin in real time to ensure the consistency of products and ensure that the pressure and the pointer height meet the control requirements. Meanwhile, a quantitative model is established for the pressure and the press-fitting depth, the press-fitting depth is divided into 5 stages, and the relationship between the press-fitting depth and the pressure is respectively established. The method can reduce the pressure deviation and the pointer height deviation, ensure the consistency of products and improve the quality of the products.
Drawings
FIG. 1 is a graph showing the relationship between pressure and press-fitting depth;
fig. 2 is a flow chart of a full-automatic pointer press-fitting method based on pressure feedback.
Detailed Description
The first embodiment is as follows: specifically describing the present embodiment with reference to fig. 1 and 2, the method for press-fitting a full-automatic pointer based on pressure feedback in the present embodiment includes the following steps:
and collecting the information of the previous work station, judging whether the information of the previous work station is qualified, and when the information of the previous work station is qualified, starting to execute the step one, otherwise, stopping press mounting.
The method comprises the following steps: in the process of pressing the pointer, the pressure between the pointer cap and the end part of the motor shaft is collected in real time,
after the pressure between the pointer cap and the end part of the motor shaft is collected, delaying 50ms and then executing the step two,
step two: the press-fitting depth of the corresponding pointer cap is calculated in real time according to the pressure,
step three: and in the standard pressure range, stopping press fitting when the press fitting depth of the pointer cap corresponding to the pressure also reaches the standard range.
Further, in the step two, the press-fitting depth X of the corresponding pointer cap is calculated in real time according to the pressure Y by using the following formula:
when 0 is less than or equal to Y<At the time of 60, the temperature of the furnace is increased,
when Y is more than or equal to 60<At the time of 90 c, the temperature of the furnace is higher,
when Y is more than or equal to 90<At the time of 110, the first time,
when 110 is less than or equal to Y<At the time of 190 f, the user can select,
furthermore, in the third step, the standard pressure range is more than or equal to 40N and less than or equal to 120N, and the press-fitting depth of the standard pointer cap is more than or equal to 0mm and less than or equal to 1.8 mm.
In order to guarantee the consistency of products, the pressure and the height of the pointer are comprehensively considered according to the principle that the actual pressure reacts on the height of the pointer in real time, and the pressure and the height of the pointer are guaranteed to meet the control requirements. Meanwhile, a quantitative model is established for the pressure and the press-fitting depth, the press-fitting depth is divided into 5 stages, and the relationship between the press-fitting depth and the pressure is respectively established. The embodiment can reduce the pressure deviation and the pointer height deviation, ensure the consistency of products and simultaneously improve the product quality
The second embodiment is as follows: the full-automatic pointer press-fitting system based on pressure feedback in the embodiment comprises the following modules:
an initialization module:
collecting the information of the previous work station and judging whether the information of the previous work station is qualified or not,
when the information of the previous work station is qualified, the pressure acquisition module is started,
and when the information of the previous work station is unqualified, driving to alarm.
A pressure acquisition module: in the process of pressing the pointer, the pressure between the pointer cap and the end part of the motor shaft is collected in real time,
a time delay module: after the pressure between the pointer cap and the end part of the motor shaft is collected, the press-fitting depth collecting module is started after 50ms delay.
Press-fitting a depth acquisition module: the press-fitting depth of the corresponding pointer cap is calculated in real time according to the pressure,
a judging module: and in the standard pressure range, stopping press fitting when the press fitting depth of the pointer cap corresponding to the pressure also reaches the standard range.
Further, in the press-fitting depth acquisition module, the press-fitting depth X of the corresponding pointer cap is calculated in real time according to the pressure Y by using the following formula:
when 0 is less than or equal to Y<At the time of 60, the temperature of the furnace is increased,
when Y is more than or equal to 60<At the time of 90 c, the temperature of the furnace is higher,
when Y is more than or equal to 90<At the time of 110, the first time,
when 110 is less than or equal to Y<At the time of 190 f, the user can select,
furthermore, the standard pressure range is more than or equal to 40N and less than or equal to 120N, and the press-fitting depth of the standard pointer cap is more than or equal to 0mm and less than or equal to 1.8 mm.
Claims (8)
1. The full-automatic pointer press-fitting method based on pressure feedback is characterized by comprising the following steps of:
the method comprises the following steps: in the process of pressing the pointer, the pressure between the pointer cap and the end part of the motor shaft is collected in real time,
step two: the press-fitting depth of the corresponding pointer cap is calculated in real time according to the pressure,
step three: in the standard pressure range, when the press fitting depth of the pointer cap corresponding to the pressure also reaches the standard range, the press fitting is stopped;
and step two, calculating the corresponding press mounting depth X of the pointer cap in real time according to the pressure Y by using the following formula:
when 0 is less than or equal to Y<At the time of 60, the temperature of the furnace is increased,
when Y is more than or equal to 60<At 90 time，
When Y is more than or equal to 90<At the time of 110, the first time,
when 110 is less than or equal to Y<At the time of 190 f, the user can select,
2. the full-automatic pointer press-fitting method based on pressure feedback as claimed in claim 1, wherein the standard pressure range is 40N-120N, and the standard pointer cap press-fitting depth is 0 mm-1.8 mm.
3. The full-automatic pointer press-fitting method based on pressure feedback as claimed in claim 1 or 2, characterized by further comprising the following steps before the first step:
and collecting the information of the previous work station, judging whether the information of the previous work station is qualified, and when the information of the previous work station is qualified, starting to execute the step one, otherwise, stopping press mounting.
4. The full-automatic pointer press-fitting method based on pressure feedback as claimed in claim 1 or 2, wherein after the pressure between the pointer cap and the end of the motor shaft is collected in the first step, the second step is executed after 50ms is delayed.
5. Full-automatic pointer pressure equipment system based on pressure feedback, its characterized in that includes the following module:
a pressure acquisition module: in the process of pressing the pointer, the pressure between the pointer cap and the end part of the motor shaft is collected in real time,
press-fitting a depth acquisition module: the press-fitting depth of the corresponding pointer cap is calculated in real time according to the pressure,
a judging module: in the standard pressure range, when the press fitting depth of the pointer cap corresponding to the pressure also reaches the standard range, the press fitting is stopped;
in the press fitting depth acquisition module, the corresponding press fitting depth X of the pointer cap is calculated in real time according to the pressure Y by using the following formula:
when 0 is less than or equal to Y<At the time of 60, the temperature of the furnace is increased,
when Y is more than or equal to 60<At the time of 90 c, the temperature of the furnace is higher,
when Y is more than or equal to 90<At the time of 110, the first time,
when 110 is less than or equal to Y<At the time of 190 f, the user can select,
6. the full-automatic pointer press-fitting system based on pressure feedback as claimed in claim 5, wherein the standard pressure range is 40N-120N, and the standard pointer cap press-fitting depth is 0 mm-1.8 mm.
7. The full-automatic pointer press-fitting system based on pressure feedback as claimed in claim 5 or 6, further comprising an initialization module:
collecting the information of the previous work station and judging whether the information of the previous work station is qualified or not,
when the information of the previous work station is qualified, the pressure acquisition module is started,
and when the information of the previous work station is unqualified, driving to alarm.
8. The full-automatic pointer press-fitting system based on pressure feedback as claimed in claim 5 or 6, further comprising a time delay module:
after the pressure between the pointer cap and the end part of the motor shaft is collected, the press-fitting depth collecting module is started after 50ms delay.
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| CN107656453A (en) * | 2017-09-18 | 2018-02-02 | 上海伟世通汽车电子***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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- 2019-11-20 CN CN201911142693.7A patent/CN110814701B/en active Active
Patent Citations (5)
| 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 | Automobile meter needle pressing joint position control module and 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 |
| CN107656453A (en) * | 2017-09-18 | 2018-02-02 | 上海伟世通汽车电子***有限公司 | Automobile meter pointer press-fit equipment and its method |
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