CN105057491A - Safety hand with adjustable magnetic force - Google Patents
Safety hand with adjustable magnetic force Download PDFInfo
- Publication number
- CN105057491A CN105057491A CN201510495065.2A CN201510495065A CN105057491A CN 105057491 A CN105057491 A CN 105057491A CN 201510495065 A CN201510495065 A CN 201510495065A CN 105057491 A CN105057491 A CN 105057491A
- Authority
- CN
- China
- Prior art keywords
- handle
- connecting rod
- magnetic force
- electromagnet
- safety hand
- 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
Links
Abstract
The invention relates to the field of punching auxiliary tools, in particular to a safety hand with adjustable magnetic force. The safety hand comprises a handle, a connecting rod connected with the handle, a moving rod, and a spring positioned between the connecting rod and the moving rod, wherein the moving rod is hinged to the connecting rod; the front end part of the connecting rod is connected with a hollow dropping hoop; the end part of the moving rod is connected with a magnetic head capable of vertically moving in the dropping hoop; the magnetic head is an electromagnet; a travel switch is arranged on the inner wall of the dropping hoop at the upper end of the electromagnet; a pokable gear for changing resistance is arranged on the side wall of the handle; and an infinitely variable control circuit electrically connected with the travel switch and the electromagnet is arranged in the handle. The safety hand adapts to absorb different workpieces through infinitely variable control of magnetic force of the electromagnet.
Description
Technical field
The present invention relates to punching press aid field, the safety hand that particularly magnetic force is adjustable.
Background technology
The stamping machine of present most enterprises adopts manual operations, actions such as " material loading-startup slide block punching presses-unload stamping parts-removing waste material-material loading " that workman will repeat rapidly, wherein preformed steel plate in heapsly can overlay side, the hand-held steel plate of workman is placed between die and punch and carries out punching press, but, very close to each other and have absorption affinity between surface between steel plate and steel plate, when staff goes to take steel plate, be not easy separately steel plate above and steel plate below.For this reason, prior art adopts the magnetic safety hand of punching press, and regulate magnetic head to move up and down by flexible handle, during work, magnetic head adsorbs preformed steel plate and moves a segment distance, steel plate above and the separative part of steel plate below, workman can take steel plate to go punching press eaily.But there is the shortcoming of the not easily material returned after little absorption of workpieces in this safety hand, because magnetic head is directly connected with workpiece, when workpiece is lighter, even if magnetic head moves on to topmost, now magnetic force is still greater than workpiece gravity, and workpiece cannot come off magnetic head, thus reduce result of use, operation inconvenience.
Chinese patent notification number CN2860667Y discloses the magnetic safety hand of punching press, comprise handle, connecting rod, movable handle and spring, connecting rod leading section is connected with the de-material hoop of hollow, be connected with the magnetic head that can move up and down in de-material hoop with the movable handle front end of rod hinge connection, de-material hoop bottom envelope has magnetic conduction bottom.Gap is left between magnetic head during duty and bottom.This patent de-material hoop lower surface envelope has bottom, and magnetic head does not directly contact with workpiece, thus reduces the magnetic force between magnetic head and workpiece, avoids the shortcoming of the small workpiece not easily material returned.But, there is following problem: 1, mainly through magnetic head, suction-operated is produced to workpiece in this patent, thus move workpiece above and produce with workpiece below and misplace, but generally this magnetic head mostly is permanent magnet, the magnetic force size of safety hand can not be regulated, easily cause the absorption affinity for heavier workpiece safety hand inadequate, do not move; For lighter workpiece, the absorption affinity of safety hand is excessive, is not easy the material returned.2, the connecting rod of safety hand and movable rod cannot stretch, and receive inconvenience at ordinary times.3, this safety hand is when adsorbing workpiece, decontrols movable handle, complete when moving workpiece, pushes down movable handle downwards with hand, and safety hand departs from surface of the work, and the custom that such mode of operation is general from people is different, easily the operate miss because of inertia.
Summary of the invention
The object of this invention is to provide the safety hand that magnetic force is adjustable, can be regulated by electromagnet and gear mesh magnetic force, thus be adapted to adsorb different workpiece.
The invention provides a kind of base case: the safety hand that magnetic force is adjustable, comprise handle, the connecting rod be connected with handle and motion bar, spring is provided with between connecting rod and motion bar, hinged between motion bar and connecting rod, connecting rod leading section is connected with the de-material hoop of hollow, the end of motion bar is connected with the magnetic head that can move up and down in described de-material hoop, magnetic head is electromagnet, travel switch is provided with above the inwall being positioned at the de-material hoop of electromagnet upper end, the gear stirred for changing resistance is had above handle side wall, the step-less adjustment circuit be electrically connected with travel switch and electromagnet is provided with in handle.
Operation principle and beneficial effect are: first workman grasps handle, push down motion bar downwards, spring is compressed, by the pin joint of motion bar and connecting rod, electromagnet is moved upward, with the upper end contact internal walls of de-material hoop, thus shutoff stroke switch, step-less adjustment circuit has electric current to pass through, and electromagnet produces magnetic.In order to adsorb workpiece, according to the weight handsetting gear of workpiece, the resistance of step-less adjustment circuit can be changed, thus changing electric current, making the magnetic field changing electromagnet generation.The present invention, by the cooperation with electromagnet and step-less adjustment circuit, realizes the adjustable of magnetic force, thus is adapted to adsorb different workpiece.
Further prioritization scheme one for base case: be provided with the electronic display for showing magnetic force above handle.Because this circuit is step-less adjustment circuit, in order to observe the magnetic force of electromagnet, electronic display being set on handle, can conveniently regulating.
Further prioritization scheme two for preferred version one: connecting rod and motion bar are provided with pars contractilis.Because safety hand is inconvenient to receive, for this reason, pars contractilis is provided with at connecting rod and motion bar.Meanwhile, the moment between impetus and acting point can be reduced, uses more laborsaving.
Further prioritization scheme three for base case: step-less adjustment circuit comprises potentiometer, protective resistance, electric capacity, bidirectional thyristor and bidirectional trigger diode.The magnetic force changing electromagnet by changing the number of turn of coil or changing the mode of electric current, can arrange potentiometer by changing resistance thus changing electric current for this reason.Bidirectional thyristor is controlled, regulates its pilot angle, thus the voltage of regulating circuit, the step-less adjustment of realizing circuit.
Further prioritization scheme four for base case or preferred version three: be arranged with rubber sleeve above handle.In order to protect the hand of workman, preventing hand injured in the course of the work, for this reason, above handle, being arranged with rubber sleeve, thus the contact making itself and hand is Elastic Contact, reduces injured possibility.
Further prioritization scheme five for base case: have gap between magnetic head and de-upper end inwall of expecting to bind round.Step-less adjustment power on circuitry or power-off is made owing to will upwards touch travel switch by magnetic head, so have gap between magnetic head and de-upper end inwall of expecting to bind round, can so that the moving up and down of magnetic head.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is circuit diagram of the present invention.
Mark in above-mentioned figure is: handle 1, connecting rod 2, motion bar 3, spring 4, electronic display 5, gear 6, potentiometer 7, protective resistance 8, electric capacity 9, bidirectional thyristor 10, bidirectional trigger diode 11, pars contractilis 12, de-material hoop 13, magnetic head 14, travel switch 15.
Detailed description of the invention
As depicted in figs. 1 and 2, the safety hand that magnetic force is adjustable, comprises handle 1, connecting rod 2, motion bar 3 and spring 4, handle 1 and connecting rod 2 are socketed, be connected with spring 4 in the middle of connecting rod 2 and motion bar 3, between connecting rod 2 and motion bar 3, be provided with installing hole, bolt by installing hole make connecting rod 2 and motion bar 3 hinged.Handle 1 is arranged with rubber sleeve, for the protection of hand above.Handle 1 is provided with the electronic display 5 for showing magnetic force above, mainly through the digital display circuit that coding, decoding and NAND gate form, has carried out numerical monitor work.The sidewall of handle 1 is provided with a groove and is positioned at the gear 6 of groove, and gear 6 can be stirred thus change resistance.Step-less adjustment circuit is provided with in handle 1; step-less adjustment circuit comprises potentiometer 7, protective resistance 8, electric capacity 9, bidirectional thyristor 10 and bidirectional trigger diode 11; potentiometer 7 is set by changing resistance thus changing electric current; bidirectional thyristor 10 is controlled; regulate its pilot angle, thus the voltage of regulating circuit.Motion bar 3 and connecting rod 2 are provided with pars contractilis 12 above, and motion bar 3 and connecting rod 2 are provided with screwed hole and screwed pipe above, with bolt by screwed hole, thus the length of regulating connecting rod 2 and motion bar 3, thus be convenient to storage.Connecting rod 2 leading section is connected with the de-material hoop 13 of hollow, the end of motion bar 3 is connected with the magnetic head 14 that can move up and down in de-material hoop 13, gap is had between magnetic head 14 and de-upper end inwall of expecting hoop 13, magnetic head 14 is electromagnet, be provided with travel switch 15 above the inwall being positioned at the de-material hoop 13 of electromagnet upper end, step-less adjustment circuit is in parallel with travel switch 15 and electromagnet.
First workman grasps handle 1, pushes down motion bar 3 downwards, and spring 4 is compressed, by the pin joint of motion bar 3 with connecting rod 2, electromagnet is moved upward, with the upper end contact internal walls of de-material hoop 13, thus shutoff stroke switch 15, step-less adjustment circuit has electric current to pass through, and electromagnet produces magnetic.In order to adsorb workpiece, according to the weight handsetting gear 6 of workpiece, the resistance of step-less adjustment circuit can be changed, thus changing electric current, making the magnetic field changing electromagnet generation.After absorption workpiece completes, decontrol motion bar 3, make electromagnet leave travel switch 15, travel switch 15 is opened, and step-less adjustment circuit no current passes through.
Above-described is only the preferred embodiment of the present invention, should be understood that for a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these all can not affect effect of the invention process and practical applicability.
Claims (6)
1. the safety hand that magnetic force is adjustable, comprise handle, the connecting rod be connected with handle and motion bar, spring is provided with between connecting rod and motion bar, hinged between motion bar and connecting rod, described connecting rod leading section is connected with the de-material hoop of hollow, the end of motion bar is connected with the magnetic head that can move up and down in described de-material hoop, it is characterized in that, described magnetic head is electromagnet, travel switch is provided with above the inwall being positioned at the de-material hoop of electromagnet upper end, the switch stirred for changing resistance is had above handle side wall, the step-less adjustment circuit be electrically connected with travel switch and electromagnet is provided with in handle.
2. the safety hand that magnetic force according to claim 1 is adjustable, is characterized in that: be provided with the electronic display for showing magnetic force above described handle.
3. the safety hand that magnetic force according to claim 1 is adjustable, is characterized in that: described connecting rod and motion bar are provided with pars contractilis.
4. the safety hand that magnetic force according to claim 1 is adjustable, is characterized in that: described step-less adjustment circuit comprises potentiometer, protective resistance, electric capacity, bidirectional thyristor and bidirectional trigger diode.
5. the safety hand that magnetic force according to claim 1 and 2 is adjustable, is characterized in that: be arranged with rubber sleeve above described handle.
6. the safety hand that magnetic force according to claim 1 is adjustable, is characterized in that: have gap between described magnetic head and de-upper end inwall of expecting to bind round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495065.2A CN105057491A (en) | 2015-08-13 | 2015-08-13 | Safety hand with adjustable magnetic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495065.2A CN105057491A (en) | 2015-08-13 | 2015-08-13 | Safety hand with adjustable magnetic force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105057491A true CN105057491A (en) | 2015-11-18 |
Family
ID=54487126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510495065.2A Pending CN105057491A (en) | 2015-08-13 | 2015-08-13 | Safety hand with adjustable magnetic force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105057491A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382121A (en) * | 2015-12-15 | 2016-03-09 | 常州市海力工具有限公司 | Iron bar feeding and clamping device |
| CN105458112A (en) * | 2016-01-15 | 2016-04-06 | 瓦房店轴承砂轮制造有限公司 | Safe feeding device of press machine |
| CN108852420A (en) * | 2018-07-05 | 2018-11-23 | 余庆县中医医院 | A kind of percussion hammer |
| CN111098327A (en) * | 2020-01-10 | 2020-05-05 | 中国矿业大学 | Electric permanent magnet type mechanical arm tool hand quick changer |
-
2015
- 2015-08-13 CN CN201510495065.2A patent/CN105057491A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382121A (en) * | 2015-12-15 | 2016-03-09 | 常州市海力工具有限公司 | Iron bar feeding and clamping device |
| CN105458112A (en) * | 2016-01-15 | 2016-04-06 | 瓦房店轴承砂轮制造有限公司 | Safe feeding device of press machine |
| CN108852420A (en) * | 2018-07-05 | 2018-11-23 | 余庆县中医医院 | A kind of percussion hammer |
| CN111098327A (en) * | 2020-01-10 | 2020-05-05 | 中国矿业大学 | Electric permanent magnet type mechanical arm tool hand quick changer |
| CN111098327B (en) * | 2020-01-10 | 2022-11-25 | 中国矿业大学 | Electric permanent magnet type mechanical arm tool hand quick changer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105057491A (en) | Safety hand with adjustable magnetic force | |
| CN205764000U (en) | A kind of efficient puncher of magnetic iron bar | |
| CN203975726U (en) | A kind of friction wheel feedway | |
| CN204673620U (en) | The two handgrip of a kind of intelligentized robot captures apparatus for shaping | |
| CN103257313B (en) | Switch service life testing machine | |
| CN205673674U (en) | A kind of aluminium alloy cutter sweep for building | |
| EP3156184A1 (en) | Pavement breaker | |
| CN207953337U (en) | A kind of change stroke mechanical hand clamping jaw structure | |
| CN205085315U (en) | Magnetic force adjustable safety hand | |
| CN203679068U (en) | Attractable pneumatic support device for bending machine | |
| CN203700392U (en) | Leather perforating machine adopting electric punch | |
| CN205230863U (en) | Automatic electric switch | |
| CN206840302U (en) | A kind of waste material cutting device being used in cutting machine | |
| CN208303710U (en) | A kind of multifunction magnetic lacuna waste material collection device | |
| CN106064272A (en) | A kind of spot welding robot | |
| CN205291660U (en) | Electromagnetism stamping device of portable | |
| CN213671212U (en) | Bending equipment for civil air defense equipment production | |
| CN204412930U (en) | A kind of piston rod presses limit fixed sleeve positioner | |
| CN202292871U (en) | Positioning point adjustable puncher | |
| CN203853425U (en) | Press machine structure for fixing tilting table | |
| CN203723500U (en) | Button binding machine | |
| CN203792932U (en) | Electric binding machine | |
| CN204496449U (en) | The professional mouse of Art Design | |
| CN210435242U (en) | Stamping and taking device for automobile mold | |
| CN204021924U (en) | Magnetic links after a kind of cutting is controlled mobile lifting device automatically |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |