CN110899432A - Punching machine capable of accurately limiting punching stroke - Google Patents
Punching machine capable of accurately limiting punching stroke Download PDFInfo
- Publication number
- CN110899432A CN110899432A CN201811074541.3A CN201811074541A CN110899432A CN 110899432 A CN110899432 A CN 110899432A CN 201811074541 A CN201811074541 A CN 201811074541A CN 110899432 A CN110899432 A CN 110899432A
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- CN
- China
- Prior art keywords
- connecting rod
- punching
- stamping
- head
- sliding sleeve
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/166—Electrical control arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The invention discloses a punching machine capable of automatically limiting stroke, which comprises a rack, wherein a punching system, a power system and a bearing plate are arranged on the rack, the power system is used for providing power for the punching system, the punching system comprises a punching head and a guiding and fixing device, the guiding and fixing device is used for controlling the punching head to move up and down, a punching hole matched with the punching head is formed in the bearing plate, and the punching machine further comprises a stroke detection system, a punching head limiting device and a controller. The stamping machine monitors the stamping stroke of the stamping head in real time through the stroke detection system, and prevents the stamping head from exceeding the preset stamping stroke and continuously moving downwards due to inertia through the stamping head limiting device.
Description
Technical Field
The invention relates to the technical field of stamping, in particular to a stamping machine capable of accurately limiting stamping stroke.
Background
The punching machine is a mechanical device which drives a flywheel through a motor, drives a crank connecting rod mechanism through a clutch and a transmission gear to enable a sliding block to move up and down and drives a drawing die to punch and form a workpiece to be punched.
However, in the actual production process, the stroke of the stamping head of the stamping machine may be too large, so that the stamping part is damaged to a certain extent; in order to solve the problem, the existing punching machine is provided with an infrared sensor, when a punching head moves to a specified position, the infrared sensor is triggered, and the infrared sensor sends a signal to the punching machine to complete one-time punching action; however, since the press machine has many metal parts, the infrared sensor is likely to be erroneously operated.
Therefore, improvements to existing presses continue.
Disclosure of Invention
The invention aims to provide a punching machine capable of accurately limiting the punching stroke, which can effectively solve the problems in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a punching machine capable of accurately limiting a punching stroke comprises a rack, wherein a punching system, a power system and a bearing plate are arranged on the rack, the power system is used for providing power for the punching system, the punching system comprises a punching head and a guiding and fixing device, the guiding and fixing device is used for controlling the punching head to move up and down, a punching hole matched with the punching head is formed in the bearing plate, and the punching machine further comprises a stroke detection system, a punching head limiting device and a controller; the stroke detection system comprises a fixed shaft, a transmission connecting rod and an angle sensor, the fixed shaft is fixed on the rack, a sliding sleeve is sleeved on the fixed shaft, one end of the transmission connecting rod is hinged to the stamping head, the other end of the transmission connecting rod is fixedly connected to the sliding sleeve, and the angle sensor is used for acquiring the rotation angle of the sliding sleeve; the stamping head limiting device comprises a guide rod, a guide sleeve and a brake, one end of the guide rod is connected to the stamping head, the other end of the guide rod penetrates through the guide sleeve, and the brake is used for braking the guide rod; the controller is respectively in signal connection with the angle sensor and the brake.
The stamping stroke of the stamping head is monitored in real time through a stroke detection system, and the stamping head is prevented from exceeding the preset stamping stroke and continuously moving downwards due to inertia through a stamping head limiting device; two ends of the stroke detection system are respectively hinged on the punching head and a transmission connecting rod on the sliding sleeve to drive the sliding sleeve sleeved on the fixed rotating shaft to rotate, and the rotating angle of the sliding sleeve is acquired through an angle sensor, so that the punching stroke of the punching head is detected in real time through the angle sensor in the controller, and then a signal is sent to the guide fixing device to control the punching head to stop moving downwards; in addition, the brake in the control punching head limiting device brakes the guide rod moving in the guide sleeve, and further the punching head connected with the guide rod is prevented from continuously moving downwards due to inertia.
As a specific embodiment, the transmission connecting rod comprises a first connecting rod and a second connecting rod, the first connecting rod is hinged to the punching head, the second connecting rod is hinged to the sliding sleeve, and a telescopic reset piece is connected between the first connecting rod and the second connecting rod.
Further, the telescopic reset piece is a reset spring.
One end of the transmission connecting rod is hinged to the punching head of the punching machine, and the other end of the transmission connecting rod is fixedly connected to the sliding sleeve, so that the length of the transmission connecting rod can be changed when the sliding sleeve rotates; the transmission connecting rod is divided into a first connecting rod hinged to the punching head and a second connecting rod fixedly connected to the sliding sleeve, a return spring is arranged at the joint of the first connecting rod and the second connecting rod, and the total length of the transmission connecting rod is changed through the expansion and contraction of the return spring.
As a specific embodiment, a positioning hole is formed at one end of the first connecting rod close to the second connecting rod, and a positioning column is formed at one end of the second connecting rod close to the first connecting rod; when the positioning column is connected, the positioning column is sleeved in the positioning hole, and the reset spring is clamped between the positioning column and the positioning hole.
Through set up the locating hole on first connecting rod to set up the reference column correspondingly on the second connecting rod, the reference column cover is located in the locating hole during the connection, thereby when making the sliding sleeve rotate, first connecting rod and second connecting rod are in on the same straight line all the time, thereby make the turned angle of sliding sleeve all the time with the punching press stroke phase-match of punching press head.
Furthermore, the angle sensor comprises a multi-pole magnetic ring arranged on the sliding sleeve, a Hall sensor arranged on the fixed rotating shaft and a microprocessor.
The sliding sleeve is provided with the multi-pole magnetic ring, the fixed rotating shaft is correspondingly provided with the Hall sensor, the Hall sensor outputs an electric signal to the microprocessor by sensing the change of a magnetic field when the sliding sleeve rotates, and the microprocessor calculates the relative rotating angle of the sliding sleeve according to the electric signal; the angle sensor is less prone to damage and is less costly than existing laser sensors.
As a specific embodiment, the brake comprises an electric push rod fixed on the bearing plate, and a movable end of the electric push rod is connected with a brake pad; when the brake is started, the movable end of the electric push rod extends out to drive the brake pad to abut against the guide rod.
Further, the outer surface of the guide rod is provided with a wear-resistant material.
The electric push rod drives the brake pad to brake the guide rod, and meanwhile, the wear-resistant material is arranged on the outer surface of the guide rod, so that the push force of the electric push rod is enough to enable the guide rod to stop moving immediately.
Drawings
FIG. 1 is a schematic view of the punch of the present invention;
FIG. 2 is a schematic structural view of the punch travel limiting mechanism of the present invention in an initial state;
FIG. 3 is a schematic structural view of the punch travel limiting mechanism of the present invention after the punch head moves downward;
FIG. 4 is a schematic structural view of the drive link of the present invention;
FIG. 5 is a schematic view of the connection between the angle sensor and the fixed shaft and the sliding sleeve.
Detailed Description
Example 1
As shown in fig. 1 to 5, a punching machine capable of accurately limiting a punching stroke includes a frame 100, a punching system 200, a power system 300, and a bearing plate 400 are disposed on the frame 100, the power system 300 is configured to provide power to the punching system 200, the punching system 200 includes a punching head 210 and a guiding and fixing device 220, the guiding and fixing device 220 is configured to control the punching head 210 to move up and down, and the bearing plate 400 is provided with a punching hole 410 matched with the punching head 210, and further includes a stroke detection system 500, a punching head limiting device 600, and a controller.
The stroke detection system 500 includes a fixing shaft 510, a transmission link 520 and an angle sensor, the fixing shaft 510 is fixed on the rack 100, the fixing shaft 510 is sleeved with a sliding sleeve 530, one end of the transmission link 520 is hinged to the stamping head 210, the other end of the transmission link 520 is fixedly connected to the sliding sleeve 530, and the angle sensor is used for acquiring a rotation angle of the sliding sleeve 530.
The punch head limiting device 600 includes a guide rod 610, a guide sleeve 620 and a brake 630, one end of the guide rod 610 is connected to the punch head 210, the other end of the guide rod is arranged in the guide sleeve 620 in a penetrating manner, and the brake 630 is used for braking the guide rod 610.
Wherein, the controller 630 is respectively connected with the angle sensor and the brake 630 in signal.
Specifically, the transmission link 520 includes a first link 521 and a second link 522, the first link 521 is hinged to the punching head 210, the second link 522 is hinged to the sliding sleeve 530, and a telescopic reset member is connected between the first link 521 and the second link 522.
Preferably, the telescopic return member is a return spring 523.
Specifically, one end of the first link 521, which is close to the second link 522, is provided with a positioning hole 524, and one end of the second link 522, which is close to the first link 521, is provided with a positioning post 525; during connection, the positioning post 525 is sleeved in the positioning hole 524, and the return spring 523 is clamped between the positioning post 525 and the positioning hole 524.
Preferably, the angle sensor includes a multi-pole magnetic ring 531 disposed on the sliding sleeve 530, a hall sensor 511 disposed on the fixed shaft 510, and a microprocessor 512.
Specifically, the brake 630 includes an electric push rod 631 fixed on the pressure bearing plate 400, and a brake pad 632 is connected to a movable end of the electric push rod 631; when the brake 630 is actuated, the movable end of the electric push rod 631 extends to drive the brake pad 632 to abut against the guide rod 610.
Preferably, the outer surface of the guide rod 610 is provided with a wear-resistant material. It should be noted that, in the drawings, a schematic structural diagram of the guide rod made of the wear-resistant material is not shown without affecting understanding.
Compared with the prior art, the invention has the following technical effects:
firstly, monitoring the stamping stroke of a stamping head in real time through a stroke detection system, and preventing the stamping head from exceeding the preset stamping stroke and continuously moving downwards due to inertia through a stamping head limiting device; two ends of the stroke detection system are respectively hinged on the punching head and a transmission connecting rod on the sliding sleeve to drive the sliding sleeve sleeved on the fixed rotating shaft to rotate, and the rotating angle of the sliding sleeve is acquired through an angle sensor, so that the punching stroke of the punching head is detected in real time through the angle sensor in the controller, and then a signal is sent to the guide fixing device to control the punching head to stop moving downwards; in addition, the brake in the control punching head limiting device brakes the guide rod moving in the guide sleeve, and further the punching head connected with the guide rod is prevented from continuously moving downwards due to inertia.
One end of the transmission connecting rod is hinged to the punching head of the punching machine, and the other end of the transmission connecting rod is fixedly connected to the sliding sleeve, so that the length of the transmission connecting rod can be changed when the sliding sleeve rotates; the transmission connecting rod is divided into a first connecting rod hinged to the punching head and a second connecting rod fixedly connected to the sliding sleeve, a return spring is arranged at the joint of the first connecting rod and the second connecting rod, and the total length of the transmission connecting rod is changed through the expansion and contraction of the return spring.
Thirdly, through setting up the locating hole on first connecting rod to set up the reference column correspondingly on the second connecting rod, the reference column cover is located in the locating hole during the connection, thereby when making the sliding sleeve rotate, first connecting rod and second connecting rod are in same straight line all the time, thereby make the turned angle of sliding sleeve all the time with the punching press stroke phase-match of punching press head.
Fourthly, arranging a multi-pole magnetic ring on the sliding sleeve, correspondingly arranging a Hall sensor on the fixed rotating shaft, outputting an electric signal to the microprocessor by the Hall sensor through sensing the change of a magnetic field when the sliding sleeve rotates, and calculating the relative rotating angle of the sliding sleeve by the microprocessor according to the electric signal; the angle sensor is less prone to damage and is less costly than existing laser sensors.
And fifthly, the electric push rod drives the brake pad to brake the guide rod, and meanwhile, the wear-resistant material is arranged on the outer surface of the guide rod, so that the thrust of the electric push rod is enough to enable the guide rod to stop moving immediately.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a punching machine that can accurate restriction punching press stroke, includes the frame, is equipped with stamping system, driving system and bearing plate in the frame, and driving system is used for providing power to stamping system, and stamping system includes punching press head and direction fixing device, and direction fixing device is used for control the first up-and-down motion of punching press is equipped with on the bearing plate with the first assorted punching press hole of punching press, its characterized in that still includes:
the device comprises a stroke detection system, a stamping head limiting device and a controller;
the stroke detection system comprises a fixed shaft, a transmission connecting rod and an angle sensor, the fixed shaft is fixed on the rack, a sliding sleeve is sleeved on the fixed shaft, one end of the transmission connecting rod is hinged to the stamping head, the other end of the transmission connecting rod is fixedly connected to the sliding sleeve, and the angle sensor is used for acquiring the rotation angle of the sliding sleeve;
the stamping head limiting device comprises a guide rod, a guide sleeve and a brake, one end of the guide rod is connected to the stamping head, the other end of the guide rod penetrates through the guide sleeve, and the brake is used for braking the guide rod;
the controller is respectively in signal connection with the angle sensor and the brake.
2. The die press according to claim 1, wherein:
the transmission connecting rod comprises a first connecting rod and a second connecting rod, the first connecting rod is hinged to the stamping head, the second connecting rod is hinged to the sliding sleeve, and a telescopic reset piece is connected between the first connecting rod and the second connecting rod.
3. The die press according to claim 2, wherein:
the telescopic reset piece is a reset spring.
4. The die press according to claim 3, wherein:
one end of the first connecting rod, which is close to the second connecting rod, is provided with a positioning hole, and one end of the second connecting rod, which is close to the first connecting rod, is provided with a positioning column;
when the positioning column is connected, the positioning column is sleeved in the positioning hole, and the reset spring is clamped between the positioning column and the positioning hole.
5. The die press according to claim 1, wherein:
the angle sensor comprises a multi-pole magnetic ring arranged on the sliding sleeve, a Hall sensor arranged on the fixed shaft and a microprocessor.
6. The die press according to any one of claims 1-5, wherein:
the brake comprises an electric push rod fixed on the bearing plate, and the movable end of the electric push rod is connected with a brake pad; when the brake is started, the movable end of the electric push rod extends out to drive the brake pad to abut against the guide rod.
7. The die press according to claim 6, wherein:
and the outer surface of the guide rod is provided with a wear-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074541.3A CN110899432A (en) | 2018-09-14 | 2018-09-14 | Punching machine capable of accurately limiting punching stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074541.3A CN110899432A (en) | 2018-09-14 | 2018-09-14 | Punching machine capable of accurately limiting punching stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110899432A true CN110899432A (en) | 2020-03-24 |
Family
ID=69812467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811074541.3A Withdrawn CN110899432A (en) | 2018-09-14 | 2018-09-14 | Punching machine capable of accurately limiting punching stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110899432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415014A (en) * | 2021-05-25 | 2021-09-21 | 太田机械江苏有限公司 | High-precision stroke detection device of hydraulic machine |
-
2018
- 2018-09-14 CN CN201811074541.3A patent/CN110899432A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415014A (en) * | 2021-05-25 | 2021-09-21 | 太田机械江苏有限公司 | High-precision stroke detection device of hydraulic machine |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200324 |