CN110576094A - Real-time monitoring device for stamping closing height - Google Patents

Real-time monitoring device for stamping closing height Download PDF

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Publication number
CN110576094A
CN110576094A CN201810592146.8A CN201810592146A CN110576094A CN 110576094 A CN110576094 A CN 110576094A CN 201810592146 A CN201810592146 A CN 201810592146A CN 110576094 A CN110576094 A CN 110576094A
Authority
CN
China
Prior art keywords
stamping
measuring sensor
precision displacement
displacement measuring
reading head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810592146.8A
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Chinese (zh)
Inventor
肖兵兵
吴慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Zhijie Automation Equipment Co Ltd
Original Assignee
Shanghai Zhijie Automation Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Zhijie Automation Equipment Co Ltd filed Critical Shanghai Zhijie Automation Equipment Co Ltd
Priority to CN201810592146.8A priority Critical patent/CN110576094A/en
Publication of CN110576094A publication Critical patent/CN110576094A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02Stamping using rigid devices or tools

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

The invention discloses a real-time monitoring device for stamping closing height, which comprises a press frame and a stroke slider, wherein a reading head fixing frame is arranged on the press frame and fixedly connected with a reading head, the reading head is connected with a precision displacement measuring sensor, the precision displacement measuring sensor is fixed on the stroke slider through a precision displacement measuring sensor bracket, two ends of the stroke slider are respectively provided with a punch and a power shaft, two ends of the power shaft are respectively provided with a through hole, a bearing is arranged in the through hole, a rotating shaft penetrates through the bearing to install one end of the power shaft on the stroke slider, the other end of the power shaft is connected with a piston arranged on a cylinder, and the cylinder is arranged on the press frame; according to the device, the precision displacement measuring sensor is installed on the stamping slide block, the displacement variable of the stamping slide block is measured through the reading head, the actual value of the closing height of the stamping workpiece of the punch is calculated, the closing height of each stamping is monitored in real time, the quality of a finished product of the stamping is judged, and the defective rate is effectively reduced.

Description

Real-time monitoring device for stamping closing height
Technical Field
The invention relates to the technical field of monitoring devices, in particular to a real-time monitoring device for the closing height of a stamping die.
Background
In a stamping forming device, the quality of a product is directly influenced by the change of the stamping stroke of a high-precision product, the ideal condition is that the closing height is constant, and the stroke of each stamping is constant, so that the perfect product quality can be obtained, but the closing height is not fixed and constant in the actual operation and is influenced by various factors: the stamping characteristics determine that errors exist in abrasion of the rotating shaft and the shaft sleeve and elastic deformation of the fixed frame, the error number greatly exceeds the schedule requirement of 0.02mm, and the 0.02mm stroke error is enough to influence the quality of a stamping part. The traditional work of detecting the punching closing height error of the workpiece is carried out through special equipment after leaving a factory, unqualified products are eliminated after the result is obtained, the detection method is carried out only after the products are processed and manufactured, when people know that the quality of the products has problems, irreversible loss is generated, and the control of the production cost of enterprises is not facilitated.
According to the problems, the invention provides a real-time monitoring device for the stamping closing height, which is characterized in that a precision displacement measuring sensor is arranged on a stamping slide block, a reading head is used for measuring the displacement variable of the stamping slide block, the actual closing height value of a stamping workpiece of a stamping head is calculated, the closing height of each stamping is monitored in real time, the quality of a stamped product is judged, and the defective rate is effectively reduced.
Disclosure of Invention
the invention aims to overcome the defects of the prior art and provides a real-time monitoring device for the stamping closing height.
In order to solve the technical problems, the invention provides the following technical scheme:
The invention provides a real-time monitoring device for the closing height of stamping, which comprises a press frame and a stroke slide block arranged in the press frame, wherein a reading head fixing frame is arranged on the press frame and is fixedly connected with a reading head, the reading head is connected with a precision displacement measuring sensor, the precision displacement measuring sensor is fixed on the stroke slide block through a precision displacement measuring sensor bracket, two ends of the stroke slide block are respectively provided with a punch and a power shaft, two ends of the power shaft are respectively provided with a through hole, a bearing is arranged in the through hole, a rotating shaft penetrates through the bearing to install one end of the power shaft on the stroke slide block, the other end of the power shaft is connected with a piston arranged on an air cylinder, and the air.
As a preferred technical scheme of the invention, the power shaft consists of a plurality of power brackets, through holes are formed in the power brackets, bearings are installed in the through holes, and the rotating shaft penetrates through the bearings to connect two adjacent power brackets into a whole.
As a preferred technical scheme of the invention, a die for placing a workpiece is arranged on a press frame, and a punch is movably connected with the die through a stroke slide block.
As a preferred technical scheme of the invention, the stroke slide block is slidably arranged in an installation groove, the installation groove is arranged in an inner cavity of the press frame, a monitoring window is arranged at the joint of the upper surface of the installation groove and the press frame, and the reading head is used for monitoring the displacement measurement sensor of the precision through the monitoring window.
As a preferred technical scheme of the invention, the precision displacement measurement sensor bracket is made of die steel and is of an integrally formed structure.
The invention has the following beneficial effects:
1. According to the invention, the reading head and the precision displacement measuring sensor are arranged on the stroke slider, the two ends of the stroke slider are respectively provided with the punch and the power shaft, the power shaft can drive the stroke slider to move under the acting force of the cylinder, and the stroke slider moves to enable the punch and the precision displacement measuring sensor arranged on the stroke slider to move in the same step; the reading head can read signals before and after the precision displacement measuring sensor moves to calculate the punch pressing distance, namely the pressing stroke, the closing height of each punching is monitored in real time, the quality of a finished product of the punching is judged, and the defective rate is effectively reduced.
2. According to the principle that the change of the closing height caused by elastic deformation is transient and the change of the closing height caused by the abrasion of the bearing is cumulant, the invention can monitor the punching closing height in real time, provide quality analysis for a punched finished product, detect the accumulated friction loss of a press force mechanism and provide an over-test basis for the maintenance of the press.
drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged perspective view of the present invention a;
fig. 3 is a schematic structural diagram of a precision displacement measuring sensor bracket of the invention.
Reference numbers in the figures: 1. a press frame; 2. a stroke slider; 3. a reading head fixing frame; 4. a read head; 5. a precision displacement measurement sensor; 6. a precision displacement measurement sensor support; 7. a punch; 8. a power shaft; 9. a bearing; 10. a rotating shaft; 11. a cylinder; 12. a piston; 13. a power bracket; 14. a mold; 15. mounting grooves; 16. and monitoring the window.
Detailed Description
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-3, the invention provides a real-time monitoring device for a stamping closing height, which comprises a press frame 1 and a stroke slider 2 arranged in the press frame 1, wherein a reading head fixing frame 3 is installed on the press frame 1, the reading head fixing frame 3 is fixedly connected with a reading head 4, the reading head 4 is connected with a precision displacement measuring sensor 5, the precision displacement measuring sensor 5 is fixed on the stroke slider 2 through a precision displacement measuring sensor bracket 6, two ends of the stroke slider 2 are respectively provided with a punch 7 and a power shaft 8, two ends of the power shaft 8 are respectively provided with a through hole, a bearing 9 is installed in the through hole, one end of the power shaft 8 is installed on the stroke slider 2 by a rotating shaft 10 penetrating through the bearing 9, the other end of the power shaft 8 is connected with a piston 12 arranged on a cylinder 11, and the cylinder.
the power shaft 8 is composed of a plurality of power brackets 13, through holes are formed in the power brackets 13, bearings 9 are installed in the through holes, and the rotating shaft 10 penetrates through the bearings 9 to connect two adjacent power brackets 13 into a whole.
The press frame 1 is provided with a die 14 for placing a workpiece, and the punch 7 is movably connected with the die 14 through the stroke slide block 2.
The stroke slider 2 is slidably mounted in a mounting groove 15, the mounting groove 15 is arranged in an inner cavity of the press frame 1, a monitoring window 16 is arranged at the joint of the upper surface of the mounting groove 15 and the press frame 1, and the reading head 4 monitors the precision displacement measuring sensor 5 through the monitoring window 16.
The precision displacement measurement sensor support 6 is made of die steel, and the precision displacement measurement sensor support 6 is of an integrally formed structure, so that the running stability of the precision displacement measurement sensor 5 can be improved.
Specifically, when the punch 7 is not pressed down, the precision displacement measuring sensor 5 is positioned on one side of the stroke slider 2 close to the power shaft 8, and at the moment, the reading head 4 reads a signal of the precision displacement measuring sensor 5 and marks the signal as a zero position; when the press works, the air cylinder 11 drives the power shaft 8 to move, so that the stroke slide block 2 drives the punch 7 to slide in the installation groove 15 and press down to the die 14, the precision displacement measurement sensor 5 moves synchronously with the stroke slide block 2, at the moment, the precision displacement measurement sensor 5 is positioned on one side of the stroke slide block 2 close to the die 14, because the reading head 4 is fixed on the press frame 1, the position is relatively fixed, the punch 7 moves to drive the precision displacement measurement sensor 5 to act together, the reading head 4 reads signals of two positions of the precision displacement measurement sensor 5, the pressing distance of the punch 7, namely the pressing stroke, the starting position of the punch 7 of the press is known, the height of the punch 7, which is subtracted by the height of the pressing height of the punch 7, is the pressing closing height, and therefore, the closing height of each time of pressing is monitored in real time to judge the quality of a pressed product, the defective rate is effectively reduced.
In addition, in actual operation, the stress deformation of the punching machine can be indirectly reflected on the moving position of the precision displacement measuring sensor 5, the displacement end position of the precision displacement measuring sensor 5 is indirectly influenced, and at the moment, the moving value of the precision displacement measuring sensor 5 can be read by the reading head 4, and the change of the closing height can be measured; similarly, the abrasion of the rotating shaft 10 also affects the change of the closing height, and the abrasion condition can be reflected indirectly through the reading of the precision displacement measuring sensor 5; according to the principle that the change of the closing height caused by elastic deformation is transient and the change of the closing height caused by the abrasion of the bearing 9 is cumulant, the invention can monitor the punching closing height in real time, provide quality analysis for a punched finished product, detect the accumulated friction loss of a press force mechanism and provide a reference for the maintenance of the press.
finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A real-time monitoring device for the closing height of stamping is characterized by comprising a press frame (1) and a stroke slide block (2) arranged in the press frame (1), wherein a reading head fixing frame (3) is installed on the press frame (1), the reading head fixing frame (3) is fixedly connected with a reading head (4), the reading head (4) is connected with a precision displacement measuring sensor (5), the precision displacement measuring sensor (5) is fixed on the stroke slide block (2) through a precision displacement measuring sensor bracket (6), two ends of the stroke slide block (2) are respectively provided with a punch head (7) and a power shaft (8), two ends of the power shaft (8) are respectively provided with a through hole, a bearing (9) is installed in the through holes, a rotating shaft (10) penetrates through the bearing (9) to install one end of the power shaft (8) on the stroke slide block (2), the other end of the power shaft (8) is connected with a piston (12) arranged on an air cylinder, the cylinder (11) is mounted on the press frame (1).
2. The real-time monitoring device for the stamping closing height as claimed in claim 1, wherein the power shaft (8) is composed of a plurality of power brackets (13), through holes are formed in the power brackets (13), bearings (9) are installed in the through holes, and the rotating shaft (10) penetrates through the bearings (9) to connect two adjacent power brackets (13) into a whole.
3. The real-time monitoring device for the punching closing height according to claim 1, characterized in that a die (14) for placing a workpiece is arranged on the press frame (1), and the punch (7) is movably connected with the die (14) through the stroke slider (2).
4. The real-time stamping closing height monitoring device according to claim 1, wherein the stroke slider (2) is slidably mounted in a mounting groove (15), the mounting groove (15) is arranged in an inner cavity of the press frame (1), a monitoring window (16) is arranged at the joint of the upper surface of the mounting groove (15) and the press frame (1), and the reading head (4) monitors the precision displacement measuring sensor (5) through the monitoring window (16).
5. The real-time stamping closing height monitoring device according to claim 1, wherein the precision displacement measuring sensor support (6) is made of die steel, and the precision displacement measuring sensor support (6) is of an integrally formed structure.
CN201810592146.8A 2018-06-11 2018-06-11 Real-time monitoring device for stamping closing height Pending CN110576094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810592146.8A CN110576094A (en) 2018-06-11 2018-06-11 Real-time monitoring device for stamping closing height

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810592146.8A CN110576094A (en) 2018-06-11 2018-06-11 Real-time monitoring device for stamping closing height

Publications (1)

Publication Number Publication Date
CN110576094A true CN110576094A (en) 2019-12-17

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ID=68810326

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810592146.8A Pending CN110576094A (en) 2018-06-11 2018-06-11 Real-time monitoring device for stamping closing height

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114719717A (en) * 2022-04-13 2022-07-08 重庆电子工程职业学院 Die repairing method of stamping die

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201455066U (en) * 2009-06-25 2010-05-12 秦皇岛方华埃西姆机械有限公司 Self-locking clamping device of duplex toggle
CN201664715U (en) * 2010-03-22 2010-12-08 吕富强 Multifunctional angle iron aligning, angle-open and angle-close machine
CN201711414U (en) * 2009-12-31 2011-01-19 郑州日产汽车有限公司 Thin plate blanking and piercing device on automobile welding fixture
CN102688948A (en) * 2012-05-02 2012-09-26 张华波 Small-sized precision squeeze riveter
CN103329054A (en) * 2010-12-17 2013-09-25 特鲁普机械奥地利有限公司及两合公司 Control and adjustment device for bending press
CN105215098A (en) * 2015-10-27 2016-01-06 安徽哈科数控机床制造有限公司 A kind of bender and using method thereof
CN105429384A (en) * 2015-12-16 2016-03-23 嵊州市利达电器厂 Stamping equipment applied to motor rotor punching sheet production
CN207668272U (en) * 2017-12-08 2018-07-31 上海市高级技工学校 Lever Pneumatic supercharger

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201455066U (en) * 2009-06-25 2010-05-12 秦皇岛方华埃西姆机械有限公司 Self-locking clamping device of duplex toggle
CN201711414U (en) * 2009-12-31 2011-01-19 郑州日产汽车有限公司 Thin plate blanking and piercing device on automobile welding fixture
CN201664715U (en) * 2010-03-22 2010-12-08 吕富强 Multifunctional angle iron aligning, angle-open and angle-close machine
CN103329054A (en) * 2010-12-17 2013-09-25 特鲁普机械奥地利有限公司及两合公司 Control and adjustment device for bending press
CN102688948A (en) * 2012-05-02 2012-09-26 张华波 Small-sized precision squeeze riveter
CN105215098A (en) * 2015-10-27 2016-01-06 安徽哈科数控机床制造有限公司 A kind of bender and using method thereof
CN105429384A (en) * 2015-12-16 2016-03-23 嵊州市利达电器厂 Stamping equipment applied to motor rotor punching sheet production
CN207668272U (en) * 2017-12-08 2018-07-31 上海市高级技工学校 Lever Pneumatic supercharger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114719717A (en) * 2022-04-13 2022-07-08 重庆电子工程职业学院 Die repairing method of stamping die
CN114719717B (en) * 2022-04-13 2023-06-20 重庆电子工程职业学院 Die repairing method of stamping die

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CB03 Change of inventor or designer information
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Inventor after: Huang Zhitao

Inventor after: Bing Bing Xiao

Inventor before: Bing Bing Xiao

Inventor before: Wu Hui

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20191217