CN113587793A - Measuring system of fastener forming machine - Google Patents
Measuring system of fastener forming machine Download PDFInfo
- Publication number
- CN113587793A CN113587793A CN202010362635.1A CN202010362635A CN113587793A CN 113587793 A CN113587793 A CN 113587793A CN 202010362635 A CN202010362635 A CN 202010362635A CN 113587793 A CN113587793 A CN 113587793A
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- die
- control module
- magnetic
- forming machine
- fastener
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- 238000000034 method Methods 0.000 claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims description 12
- 238000005242 forging Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention provides a measuring system of a fastener forming machine, which comprises the fastener forming machine, a control module and a magnetic induction module. The fastener forming machine is provided with a first die and a second die which are arranged opposite to each other, and the control module is electrically connected with the first die and drives the first die to move relative to the second die so as to punch and form at least one fastener. The magnetic induction module comprises a magnetic piece and a magnetic sensor, the magnetic piece is arranged on the first die to move along with the first die, and the magnetic sensor is electrically connected with the control module and arranged on a moving path of the magnetic piece. In the stamping forming process, the control module senses the magnetic change of the magnetic piece through the magnetic sensor to obtain the stamping stroke of the first die.
Description
Technical Field
The invention relates to a measuring system, in particular to a measuring system of a fastener forming machine.
Background
Forging is one of the metal forming methods, and refers to changing the shape of a metal material by pressure to obtain a fastener having certain mechanical properties.
In the prior art, the manufactured metal fastener needs to be subjected to size detection (full detection or random detection), which not only consumes time and labor, but also produces different results due to different manual detection methods.
Furthermore, the conventional forging machine is additionally provided with a displacement measuring device to provide a basis for size judgment of the fastener, but the method not only needs to consume extra cost, but also is limited by the space on the forging machine. Meanwhile, as the manufacturing time progresses, the die wear degree gradually affects the size of the fastener, so that the above method cannot provide an accurate determination basis for the size of the fastener.
Disclosure of Invention
The invention is directed to a measuring system of a fastener forming machine, which can provide fastener measuring information piece by piece and in real time in the manufacturing process of fasteners.
According to an embodiment of the present invention, a measuring system of a fastener forming machine includes a fastener forming machine, a control module, and a magnetic induction module. The fastener forming machine is provided with a first die and a second die which are arranged opposite to each other, and the control module is electrically connected with the first die and drives the first die to move relative to the second die so as to punch and form at least one fastener. The magnetic induction module comprises a magnetic piece and a magnetic sensor, the magnetic piece is arranged on the first die to move along with the first die, and the magnetic sensor is electrically connected with the control module and arranged on a moving path of the magnetic piece. In the stamping forming process, the control module senses the magnetic change of the magnetic piece through the magnetic sensor to obtain the stamping stroke of the first die.
According to an embodiment of the invention, a measuring system of a fastener forming machine comprises the fastener forming machine, a control module and an accelerometer. The fastener forming machine is provided with a first mold and a second mold which are arranged opposite to each other. The control module is electrically connected with the first die and drives the first die to move relative to the second die so as to punch and form at least one fastener. The accelerometer is electrically connected with the control module, and the accelerometer is arranged on the first die and moves along with the first die. The control module obtains the stamping stroke of the first die through the accelerometer.
In the measuring system of a fastener forming machine according to an embodiment of the present invention, the magnetic member is a wedge block having a wedge face facing the magnetic sensor.
In the measuring system of the fastener forming machine according to the embodiment of the invention, the first mold and the second mold are subjected to the press forming on the plane of the fastener forming machine. The control module is provided with an arithmetic unit, the control module obtains at least one local magnetic variation of the wedge-shaped surface through the magnetic sensor, and the arithmetic unit calculates the stroke of the magnetic member along the plane through the at least one local magnetic variation and the inclination angle of the wedge-shaped surface relative to the plane.
In the measuring system of the fastener forming machine according to the embodiment of the invention, the control module adjusts the accuracy of the magnetic member along the planar stroke by adjusting the magnetic sensor to obtain at least one local range.
In the measuring system of the fastener forming machine according to the embodiment of the invention, the measuring system of the fastener forming machine further includes a display module electrically connected to the control module to provide information of the stamping stroke of the first die.
In the measuring system of the fastener forming machine according to the embodiment of the invention, the control module further includes an arithmetic unit, the control module obtains the acceleration-time relationship of the first mold through the accelerometer, and the arithmetic unit integrates the obtained acceleration-time relationship to calculate the stamping stroke-time relationship of the first mold.
In the measuring system of the fastener molding machine according to the embodiment of the present invention, the above-mentioned arithmetic unit integrates the obtained acceleration-time relationship to calculate the stamping speed-time relationship of the first mold.
In the measuring system of the fastener forming machine according to the embodiment of the invention, the control module determines the vibration trend of the fastener forming machine according to the jitter degree of the relation curve.
Based on the above, the fastener forming machine can drive the first mold to move relative to the second mold through the control module to generate the required stamping forming process, and can obtain the stamping stroke of the first mold through the non-contact sensing module. The non-contact sensing module comprises a magnetic member arranged on the first die to move along with the first die, and a magnetic sensor positioned on a corresponding moving path of the magnetic member, so that the punching stroke of the first die is obtained through magnetic change. Furthermore, the non-contact sensing module comprises an accelerometer arranged on the first die, so that the sensing module can obtain the stamping stroke of the first die from the obtained acceleration of the first die.
In other words, the punch further corresponds to the size of the fastener formed by punching through the die closing distance, and the measuring system can provide fastener measuring information piece by piece and in real time in the manufacturing process of the fastener, so that the linearity, the accuracy and the stability of measurement are improved, and the measuring system can be effectively used as a basis for judging the quality of the fastener in the forging process on line.
Drawings
FIG. 1 is a simplified schematic diagram of a measurement system of a fastener forming machine according to one embodiment of the present invention;
FIG. 2 is an electrical schematic diagram of a measurement system of the fastener forming machine of FIG. 1;
FIG. 3 is a partial side view of a measurement system of the fastener forming machine of FIG. 1;
fig. 4 is an electrical schematic diagram of a measurement system of a fastener forming machine according to another embodiment of the invention.
Detailed Description
Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
Fig. 1 is a simplified schematic diagram of a measurement system of a fastener forming machine according to one embodiment of the present invention. Fig. 2 is an electrical schematic diagram of a measurement system of the fastener forming machine of fig. 1. Referring to fig. 1 and fig. 2, in the present embodiment, a measuring system 100 of a fastener forming machine includes a fastener forming machine 110, a control module 120, and a non-contact sensing module. The fastener forming machine 110 has a first mold 111 and a second mold 112 disposed opposite to each other, and the control module 120 is electrically connected to and drives the first mold 111 to move relative to the second mold 112, wherein the blank of the fastener is adapted to be fixed to the second mold 112, so that the blank can be formed into a finished product or a semi-finished product of at least one fastener by the above-mentioned relative movement.
Here, the purpose of the non-contact sensing module is to obtain a press stroke of the first mold 111. In other words, the acquisition of the press stroke represents the mold clamping distance between the first mold 111 and the second mold 112, so that the size of the fastener to be press-formed can be further matched by the mold clamping distance, and the required information can be provided piece by piece and in real time. Moreover, the non-contact sensing module can effectively overcome structural factors such as component fatigue or assembly errors possibly generated by the contact sensing module, and can naturally provide more accurate data information compared with the contact sensing module.
In the present embodiment, the non-contact sensing module is a magnetic induction module 130, which includes a magnetic element 131 and a magnetic sensor 132, the magnetic element 131 is disposed on the first mold 111 to move with the first mold 111, and the magnetic sensor 132 is electrically connected to the control module 120 and disposed on a motion path of the magnetic element 131. In the stamping forming process, the control module 120 obtains the stamping stroke of the first die 111 by sensing the magnetic change of the magnetic member 131 through the magnetic sensor 132.
Fig. 3 is a partial side view of a measurement system of the fastener forming machine of fig. 1. Referring to fig. 1 to fig. 3, in detail, the magnetic member 131 of the present embodiment is a wedge block, which operates on the plane 113 of the fastener forming machine 110 together with the first mold 111 and the second mold 112, and the wedge surface 131a of the magnetic member 131 faces the magnetic sensor 132. Meanwhile, the control module 120 further has an arithmetic unit 121 for receiving the related information obtained by the magnetic sensor 132. Accordingly, the control module 120 obtains at least one local magnetic variation of the wedge-shaped surface 131a through the magnetic sensor 132, and the computing unit 121 calculates the stroke of the magnetic member 131 along the plane 113 according to the at least one local magnetic variation and the inclination angle of the wedge-shaped surface 131a relative to the plane 113. For example, as shown in fig. 3, the wedge-shaped surface 131a has an inclination angle θ with respect to the plane 113, and the magnetic sensor 132 is used to obtain a local amount of forward projection Δ Z of the wedge-shaped surface 131a, so that during the stamping process, the magnetic sensor 132 can derive the moving stroke of the wedge block along the X-axis according to the magnetic variation generated by the same amount of forward projection Δ Z, which is equivalent to the stamping stroke of the first mold 111 along the plane 113.
In addition, the control module 120 can further adjust the accuracy of obtaining the stroke of the magnetic member 131 along the plane 113 by adjusting at least a local range obtained by the magnetic sensor 132, that is, the accuracy of the magnetic variation obtained from the forward projection amount Δ Z corresponds to the stroke accuracy Δ X by the corresponding triangular relationship (as shown in the proportional relationship between the forward projection amount Δ Z and the stroke accuracy Δ X) generated by the inclination angle θ. That is, the user can appropriately change the inclination angle θ to obtain the stroke accuracy Δ X accordingly.
On the other hand, the measuring system 100 of the fastener forming machine further includes a display module 140 electrically connected to the control module 120 for providing information such as the punching stroke of the first mold 111 relative to the second mold 112 to the user, so that the user can know the punching stroke piece by piece and in real time.
In another embodiment, the measurement system of the fastener forming machine can be externally connected to an online prediction system of the fastener size, that is, the stamping stroke (corresponding to the clamping distance) is combined with other sensed parameters of the mold (such as temperature and forging force), and the size of the fastener is predicted online through the operation of a size prediction model.
Fig. 4 is an electrical schematic diagram of a measurement system of a fastener forming machine according to another embodiment of the invention. Referring to fig. 4 and fig. 1, the same parts as those in the previous embodiment are not repeated, but different from the previous embodiment, the non-contact sensing module in the present embodiment is an accelerometer 230, and is electrically connected to the control module 120, and the accelerometer 230 is disposed on the first mold 111 and moves along with the first mold 111, so that the control module 120 obtains the stamping stroke of the first mold 111 through the accelerometer 230.
Further, the control module 120 further includes an operation unit 121, the control module 120 obtains the acceleration-time (a-t) relationship of the first mold 111 through the accelerometer 230, and the operation unit 121 integrates the obtained acceleration-time (a-t) relationship to calculate the stamping stroke-time (x-t) relationship of the first mold 111. The arithmetic unit 121 integrates the obtained acceleration-time (a-t) relationship once to calculate the pressing speed-time (v-t) relationship of the first mold 111, and then integrates the relationship once again to obtain the pressing stroke-time (x-t) relationship. In the present embodiment, the control module 120 can further determine the vibration level and trend of the first mold 111 and even the fastener forming machine 110 according to the jitter level of the relationship curve.
In summary, in the above embodiments of the invention, the fastener forming machine can obtain the punching stroke of the first mold through the non-contact sensing module, in addition to the required press forming process generated by the control module driving the first mold to move relative to the second mold. The non-contact sensing module comprises a magnetic member arranged on the first die to move along with the first die, and a magnetic sensor positioned on a corresponding motion path of the magnetic member, so as to obtain the stamping stroke of the first die through magnetic change. Furthermore, the non-contact sensing module comprises an accelerometer arranged on the first die, so that the sensing module can obtain the stamping stroke of the first die from the obtained acceleration of the first die.
In other words, the obtaining of the stamping stroke represents the mold closing distance between the first mold and the second mold, so that the size of the stamped fastener can be further corresponded through the mold closing distance, and the measuring system can provide fastener measuring information piece by piece and in real time in the manufacturing process of the fastener, so that the linearity, the accuracy and the stability of the measurement can be increased, and the quality basis of the fastener in the forging process can be effectively judged on line.
Compared with other forms of non-contact induction modules, because the fastener forming is based on the punch forming process, oil gas or other impurities still exist in the working environment, if the optical induction module is arranged, the influence is still easily caused, and more accurate stamping stroke information cannot be obtained. In addition, the press stroke (corresponding to the clamping distance) obtained in the above embodiment can be further combined with other sensing parameters of the mold (such as temperature and forging force) to predict the size of the fastener on line through the calculation of the size prediction model.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A measuring system for a fastener forming machine, comprising:
the fastener forming machine is provided with a first die and a second die which are arranged oppositely;
the control module is electrically connected with the first die and drives the first die to move relative to the second die so as to punch and form at least one fastener;
a magnetic induction module comprising:
the magnetic part is arranged on the first die and moves along with the first die; and
and the magnetic sensor is electrically connected with the control module and arranged on a moving path of the magnetic piece so as to obtain the stamping stroke of the first die by sensing the magnetic change of the magnetic piece in the stamping forming process.
2. The fastener forming machine measurement system of claim 1, wherein the magnetic member is a wedge block having a wedge face facing the magnetic sensor.
3. The system of claim 2, wherein the first mold and the second mold are configured to perform the stamping on a plane of the fastener forming machine, the control module comprises a computing unit, the control module obtains at least a local magnetic variation of the wedge surface through the magnetic sensor, and the computing unit calculates the stroke of the magnetic member along the plane through the at least a local magnetic variation and the inclination angle of the wedge surface with respect to the plane.
4. The system of claim 3, wherein the control module adjusts the accuracy of the magnetic member along the planar path by adjusting the magnetic sensor to obtain the at least one local range.
5. The system of claim 1, further comprising a display module electrically connected to the control module for providing information on the stroke of the first die.
6. A measuring system for a fastener forming machine, comprising:
the fastener forming machine is provided with a first die and a second die which are arranged oppositely;
the control module is electrically connected with the first die and drives the first die to move relative to the second die so as to punch and form at least one fastener; and
the accelerometer is electrically connected with the control module, is arranged on the first die and moves along with the first die, so that the control module obtains the stamping stroke of the first die through the accelerometer.
7. The system of claim 6, wherein the control module further comprises a computing unit, the control module obtains the acceleration-time relationship of the first mold through the accelerometer, and the computing unit integrates the obtained acceleration-time relationship to calculate the stamping stroke-time relationship of the first mold.
8. The system of claim 7, wherein the computing unit integrates the obtained acceleration-time relationship to calculate the stamping speed-time relationship of the first die.
9. The system of claim 7 or 8, wherein the control module determines a vibration trend of the fastener forming machine by a degree of jitter of the relationship curve.
10. The system of claim 6, further comprising a display module electrically connected to the control module for providing information on the stroke of the first die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362635.1A CN113587793B (en) | 2020-04-30 | 2020-04-30 | Measuring system of fastener forming machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010362635.1A CN113587793B (en) | 2020-04-30 | 2020-04-30 | Measuring system of fastener forming machine |
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| CN113587793A true CN113587793A (en) | 2021-11-02 |
| CN113587793B CN113587793B (en) | 2023-11-07 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005195481A (en) * | 2004-01-08 | 2005-07-21 | Japan Servo Co Ltd | Magnetic linear position sensor |
| CN102107543A (en) * | 2009-12-24 | 2011-06-29 | 兰州兰石重工新技术有限公司 | Stroke detection device for pressing machine |
| CN202101732U (en) * | 2011-05-17 | 2012-01-04 | 中国端子电业股份有限公司 | Non-contact type height change induction device |
| DE102010039124A1 (en) * | 2010-08-10 | 2012-02-16 | Robert Bosch Gmbh | Sensor arrangement for gear shift system to detect position displacement of shift fork along traverse path, has magnet arrangement for producing homogeneous magnetic field, which exhibits constant flux density perpendicular to traverse path |
| CN103017647A (en) * | 2012-12-12 | 2013-04-03 | 江苏大学 | Detecting method for displacement of hydraulic counter-blow hammer heads |
| CN103673854A (en) * | 2012-09-18 | 2014-03-26 | 株式会社电装 | Position detection device |
| CN105509775A (en) * | 2009-12-21 | 2016-04-20 | 罗伯特·博世有限公司 | Magnetic field sensor assembly for capturing travel on movable parts |
| CN208833259U (en) * | 2017-09-15 | 2019-05-07 | 英飞凌科技股份有限公司 | For determining the magnet sensor arrangement and hydraulic actuator system of the position of actuator |
-
2020
- 2020-04-30 CN CN202010362635.1A patent/CN113587793B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005195481A (en) * | 2004-01-08 | 2005-07-21 | Japan Servo Co Ltd | Magnetic linear position sensor |
| CN105509775A (en) * | 2009-12-21 | 2016-04-20 | 罗伯特·博世有限公司 | Magnetic field sensor assembly for capturing travel on movable parts |
| CN102107543A (en) * | 2009-12-24 | 2011-06-29 | 兰州兰石重工新技术有限公司 | Stroke detection device for pressing machine |
| DE102010039124A1 (en) * | 2010-08-10 | 2012-02-16 | Robert Bosch Gmbh | Sensor arrangement for gear shift system to detect position displacement of shift fork along traverse path, has magnet arrangement for producing homogeneous magnetic field, which exhibits constant flux density perpendicular to traverse path |
| CN202101732U (en) * | 2011-05-17 | 2012-01-04 | 中国端子电业股份有限公司 | Non-contact type height change induction device |
| CN103673854A (en) * | 2012-09-18 | 2014-03-26 | 株式会社电装 | Position detection device |
| CN103017647A (en) * | 2012-12-12 | 2013-04-03 | 江苏大学 | Detecting method for displacement of hydraulic counter-blow hammer heads |
| CN208833259U (en) * | 2017-09-15 | 2019-05-07 | 英飞凌科技股份有限公司 | For determining the magnet sensor arrangement and hydraulic actuator system of the position of actuator |
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| CN113587793B (en) | 2023-11-07 |
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