CN102854837B - Adjustable cam controller capable of detecting cam motion and switch adhesion - Google Patents
Adjustable cam controller capable of detecting cam motion and switch adhesion Download PDFInfo
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- CN102854837B CN102854837B CN201210298494.7A CN201210298494A CN102854837B CN 102854837 B CN102854837 B CN 102854837B CN 201210298494 A CN201210298494 A CN 201210298494A CN 102854837 B CN102854837 B CN 102854837B
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Abstract
The invention relates to an adjustable cam controller capable of detecting cam motion and switch adhesion, which comprises a controller housing, a camshaft assembly and a switch assembly, and the camshaft assembly and the switch assembly are arranged in the controller housing; the camshaft assembly comprises a camshaft, both ends of which are mounted in the controller housing through bearings, a plurality of sets of cam assemblies are mounted on the camshaft, and a compressed spring is arranged between every two neighboring cam assemblies; each cam assembly comprises an outer cam, an inner cam and a shaft sleeve which are sleeved on the camshaft, the shaft sleeve is sleeved on the camshaft, and the outer cam and the inner cam are sleeved on the shaft sleeve; the switch assembly comprises a plurality of switches mounted at one side of the camshaft, and one switch is correspondingly mounted on each set of cam assembly; and the adjustable cam controller is characterized in that: a coded disc is mounted on the camshaft, and a photoelectric sensor which can receive the rotational signals of the coded disc is mounted at one side of the coded disc through a mounting support. Since the coded disc and the photoelectric sensor for detecting the motion of the coded disc are mounted on the adjustable cam controller, a dynamic monitoring device is formed.
Description
Technical field
The present invention relates to a kind of adjustable cam controller detecting camming movement and switch adhesion, especially a kind of cam controller in the automation equipments such as iron and steel, metallurgy, machinery, light industry, mine and various automatic production line.
Background technology
Cam controller is the important component part of punching machine electrical control system.In a working cycle of punching machine, the action of main and auxiliaries (subsidiary engine of particularly controlled pressure machine slide block action) each working mechanism has strict logical relation, comprises the order of action and the time shared by action.The method of work for the treatment of mechanism logical relation, normally distributes crankshaft rotating one week 360 °, makes the working cycle diagram of punching machine, controlled the action of each working mechanism.Cam controller is exactly the topworks distributed crankshaft rotation angle.Cam controller is installed on the axle that rotates with crankshaft-synchronous, along with the rotation of bent axle, cam controller sends corresponding signal, sends instruction after electric-control system Received signal strength to each working mechanism, working mechanism produces the action of regulation successively, completes a working cycle of punching machine.
According to the new regulation of associated mechanical press safety standard; if when the cam of excess of stroke supervising device is driven indirectly by bent axle (as: chain drive by between cam and bent axle); reply indirectly drives and monitors; if there is fault; stopping signal should be sent immediately, and the stroke stoping startup new.And existing cam controller does not generally have dynamic monitoring device, after cam controller breaks down (as axle fracture, switch failure), pressing machine can not be shut down in time, may cause security incident.
In existing cam controller, the general shaft coupling that adopts installs scrambler or rotary transformer, or adopting common output shaft to connect scrambler or rotary transformer, there are following two shortcomings in these two kinds of mounting structures: (1) adopts the axle construction relative complex of shaft coupling, reliability relatively poor; (2) scrambler adopting common output shaft to connect or rotary transformer, because output shaft is comparatively thin, if there is deviation when installing, or under high vibration condition, output shaft easily ruptures.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of adjustable cam controller detecting camming movement and switch adhesion is provided, this cam controller has installed code-disc (or rotary transformer) and the photoelectric sensor for detecting camming movement, constitute dynamic monitoring device, and mounting structure is firm, fracture is less likely to occur.
According to technical scheme provided by the invention, the described adjustable cam controller detecting camming movement and switch adhesion, comprises controller case, is located at cam assembly in controller case and switch module; Described cam assembly is comprised two ends and is arranged on camshaft in controller case by bearing, camshaft is installed multiple cams assembly, between adjacent cam pack, is provided with stage clip; Described cam pack comprises the external cam be set on camshaft, cam ring and axle sleeve, and axle sleeve is set on camshaft, and external cam and cam ring are set on axle sleeve; The both sides end face of described cam ring is provided with gear ring, is provided with gear ring in a side end face of described external cam, be provided with gear ring in a side end face of described axle sleeve; The described gear ring of cam ring one side end face engages with the end face gear ring of axle sleeve, and the gear ring of cam ring opposite side end face engages with the end face gear ring of external cam; Described switch module comprises multiple switch being arranged on camshaft side, often organizes cam pack correspondence and installs a switch; Feature is: on described camshaft, be provided with code-disc, is installed the photoelectric sensor that can accept code-disc turn signal in the side of described code-disc by mounting bracket.
In an embodiment, the rotary transformer that described code-disc and photoelectric sensor are located on camshaft by coaxial sleeve replaces.
In an embodiment, the rotor of described rotary transformer is connected with camshaft, fixing by spring leaf flexibility between the stator of rotary transformer and controller case.
In an embodiment, the axle head of described camshaft is connected with the output shaft of rotary transformer by shaft coupling, and rotor and the output shaft of rotary transformer are fixed, and the stator of rotary transformer is fixed by mounting flange and controller case.
In an embodiment, described rotary transformer is replaced by scrambler.
In an embodiment, described rotary transformer is arranged on inside or the outside of controller case.
In an embodiment, described code-disc is discoid, arranges several stepped tooths at the edge of code-disc, forms trapezoidal cell body between adjacent trapezoidal tooth, the dovetail groove body that stepped tooth is adjacent with one forms a cycle period, and the angle of this cycle period is α.
In an embodiment, the angle [alpha] of a described code-disc cycle period is 4 °.
In an embodiment, be provided with stop means at least two group cam packs, described stop means is one or morely be arranged on the first spacer pin inside the end face gear ring of cam ring side, be one or morely arranged on the second spacer pin inside cam ring opposite side end face gear ring, be one or morely arranged on the first stopper slot inside the end face gear ring of external cam side and one or more the second stopper slot be arranged on inside the end face gear ring of axle sleeve side; Described first spacer pin embeds in the first corresponding stopper slot successively, and the second spacer pin embeds in the second corresponding stopper slot successively; Described first spacer pin can carry out back rotation along the arc length direction of the first corresponding stopper slot, and the second spacer pin can carry out back rotation along the arc length direction of the second corresponding stopper slot.
In an embodiment, the switch (9) corresponding to the described cam pack with stop means is the switch with normally closed contact forced switching-off function.
The present invention has the following advantages: (1) the present invention has installed code-disc and the photoelectric sensor (or rotary transformer, scrambler) for detecting code-disc motion, constitutes the dynamic monitoring device to camming movement state, switch motion state; (2) code-disc of the present invention (or rotary transformer, scrambler) and cam pack are coaxially installed, and mounting structure is firm, and fracture is less likely to occur.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first scheme of the present invention.
Fig. 2 is outside drawing of the present invention.
Fig. 3 is the structural representation of cam assembly of the present invention.
Fig. 4 is the E-E cut-open view of Fig. 1.
Fig. 5 is the structural representation of code-disc of the present invention.
Fig. 6 is the structural representation of first scheme of the present invention.
Fig. 7 is the structural representation of the third scheme of the present invention.
Fig. 8 is the structural representation of the present invention's the 4th kind of scheme.
Fig. 9 is the structural representation of cam ring of the present invention.
Figure 10 is the rear view of Fig. 9.
Figure 11 is the A-A cut-open view of Fig. 9.
Figure 12 is the structural representation of external cam of the present invention.
Figure 13 is the B-B cut-open view of Figure 12.
Figure 14 is the structural representation of axle sleeve of the present invention.
Figure 15 is the C-C cut-open view of Figure 14.
Embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Fig. 1 ~ Figure 15: the adjustable cam controller that can detect camming movement and switch adhesion comprises tag 1, controller case 2, camshaft 3, stage clip 4, rotary transformer 5, cam assembly 7, cam pack 8, switch 9, code-disc 11, photoelectric sensor 12, mounting bracket 13, spring leaf 14, shaft coupling 15, output shaft 16, mounting flange 17, first spacer pin 18, second spacer pin 19, first stopper slot 20, second stopper slot 21, external cam 3a, cam ring 3b, axle sleeve 3c etc.
As shown in Figure 1 and Figure 2, the present invention includes controller case 2, be located at cam assembly 7 in controller case 2 and switch module; Described cam assembly 7 is comprised two ends and is arranged on camshaft 3 in controller case 2 by bearing, according to the number installation multiple cams assembly 8 of required control signal on camshaft 3; Described switch module comprises multiple switch 9 being arranged on camshaft 3 side, often organizes cam pack 8 correspondence and installs a switch 9; Be provided with stop means at least two group cam packs 8, the switch 9 corresponding to the described cam pack 8 with stop means is the switch with normally closed contact forced switching-off function;
As shown in Figure 3, between adjacent cam pack 8, stage clip 4 is provided with; Described cam pack 8 comprises the external cam 3a be set on camshaft 3, cam ring 3b and axle sleeve 3c, axle sleeve 3c are set on camshaft 3, and external cam 3a and cam ring 3b is set on axle sleeve 3c; The both sides end face of described cam ring 3b is provided with gear ring, is provided with gear ring in a side end face of described external cam 3a, be provided with gear ring in a side end face of described axle sleeve 3c; As shown in Figure 3, the described gear ring of cam ring 3b mono-side end face engages with the end face gear ring of axle sleeve 3c, and the gear ring of cam ring 3b opposite side end face engages with the end face gear ring of external cam 3a; As shown in Fig. 9 ~ Figure 15, described stop means is one or morely be arranged on the first spacer pin 18 inside the end face gear ring of cam ring 3b side, be one or morely arranged on the second spacer pin 19 inside cam ring 3b opposite side end face gear ring, be one or morely arranged on the first stopper slot 20 inside the end face gear ring of external cam 3a side and one or more the second stopper slot 21 be arranged on inside the end face gear ring of axle sleeve 3c side; Described first spacer pin 18 embeds in the first corresponding stopper slot 20 successively, and the second spacer pin 19 embeds in the second corresponding stopper slot 21 successively; Described first spacer pin 18 can carry out back rotation along the arc length direction of the first corresponding stopper slot 20, and the second spacer pin 19 can carry out back rotation along the arc length direction of the second corresponding stopper slot 21;
In order to detect motion and the switch adhesion of cam, camshaft 3 installs dynamic monitoring device, the first scheme of this dynamic monitoring device as shown in Figure 4, on described camshaft 3, coaxial installation code-disc 11, installs the photoelectric sensor 12 that can accept code-disc 11 turn signal by mounting bracket 13 in the side of described code-disc 11; Described code-disc 11 is directly installed coaxial on camshaft 3, does not adopt shaft coupling;
As shown in Figure 5, described code-disc 11 is discoid, at the edge of code-disc 11, several stepped tooths are set, trapezoidal cell body is formed between adjacent trapezoidal tooth, the dovetail groove body that stepped tooth is adjacent with one forms a cycle period, the angle of this cycle period is α, and this α angle confirms according to specific circumstances, as 4 °, described code-disc 11 and camshaft 3 synchronous axial system, by photoelectric sensor 12 detect code-disc 11 rotation and by signal feedback to the safety control system of pressing machine, like this once cam controller breaks down (comprising off-axis and switch failure), the safety control system of pressing machine just sends stopping signal immediately, reach the dynamic monitoring effect to cam controller, make press safety control system realize " anomalous mode " to the work of cam controller and control (the fault that quick-action switch can avoid electromagnetic interference (EMI) to cause, photoelectric sensor can avoid physical shock to vibrate the fault caused), thus effectively improve the safety coefficient of pressing machine, photoelectric sensor detects code-disc and rotates and be make use of existing PLC or other electrical safety control module in press safety control system by signal feedback to the safety control system of pressing machine, thus make the present invention compare existing mechanical-electronic cam controller under the prerequisite meeting punching machine security function, have that structure is simple, good reliability, cost performance high simultaneously,
Described code-disc 11 and photoelectric sensor 12 also can be replaced by the rotary transformer 5 be coaxially arranged on camshaft 3, namely the first scheme of described dynamic monitoring device as shown in Figure 6, described rotary transformer 5 coaxial sleeve is located on the axle head of camshaft 3, rotary transformer 5 is directly installed on camshaft 3 for cylinder nested structure, thus the installation shaft of rotary transformer 5 is relatively thick, and do not need other shaft coupling and fabricated section, the defect of the comparatively thin easily fracture of conventional coders or rotary transformer output shaft in the middle of prior art can be overcome; The rotor of described rotary transformer 5 is connected with camshaft 3, fixing by spring leaf 14 flexibility between the stator of rotary transformer 5 and controller case 2; Described rotary transformer 5 is a kind of small-sized AC motor taken measurement of an angle, be used for measuring the rotating shaft angular travel of rotating object and angular velocity, wherein stator winding is as the former limit of transformer, accepts field voltage, rotor windings, as the secondary of transformer, obtains induced voltage by electromagnetic coupled; The course of work of described rotary transformer 5 is: the rotor of rotary transformer 5 and camshaft 3 synchronous axial system, rotor windings by signal feedback to the electric control loop of pressing machine, realize the monitoring to camming movement state, switch motion state, like this once cam controller breaks down (comprising off-axis and switch failure), the safety control system of pressing machine just sends stopping signal immediately, reaches the dynamic monitoring effect to cam controller;
The third scheme of described dynamic monitoring device as shown in Figure 8, the axle head of described camshaft 3 is connected with the output shaft 16 of rotary transformer 5 by shaft coupling 15, rotor and the output shaft 16 of rotary transformer 5 are fixed, and the stator of rotary transformer 5 is fixed by mounting flange 17 and controller case 2;
Described rotary transformer 5 also can be replaced by scrambler, and namely the output shaft 16 of scrambler is connected by shaft coupling 15 with camshaft 3, and center code-disc and the output shaft 16 of scrambler are fixed; Scrambler is a kind of device angular displacement or straight-line displacement being converted to electric signal, operationally, the center code-disc of scrambler and camshaft 3 synchronous axial system, and the signal of acquisition is sent to the electric control loop of pressing machine, realize the monitoring to cam and switch motion state;
As shown in Figure 6, described rotary transformer 5 or scrambler can be arranged on the inside of controller case 2; As shown in Figure 7, described rotary transformer 5 or scrambler also can be arranged on the outside of controller case 2;
The quick-action switch that the described switch with normally closed contact forced switching-off function can adopt German Sha Ertebao (schaltbau) company to produce, in cam controller of the present invention, adopt quick-action switch to replace common microswitch, meet GB 27607-2011 " punching machine safety specifications " security control requirements, even if switch contact occurs molten also to there is not potential safety hazard;
The tag 1 being used for place in circuit is installed outside described controller case 2.
Claims (6)
1. can detect an adjustable cam controller for camming movement and switch adhesion, comprise controller case (2), be located at cam assembly (7) in controller case (2) and switch module; Described cam assembly (7) is comprised two ends and is arranged on camshaft (3) in controller case (2) by bearing, installs multiple cams assembly (8) camshaft (3) is upper, between adjacent cam pack (8), is provided with stage clip (4); Described cam pack (8) comprises the external cam (3a) be set on camshaft (3), cam ring (3b) and axle sleeve (3c), and axle sleeve (3c) is set on camshaft (3), and external cam (3a) and cam ring (3b) are set on axle sleeve (3c); The both sides end face of described cam ring (3b) is provided with gear ring, is provided with gear ring in a side end face of described external cam (3a), be provided with gear ring in a side end face of described axle sleeve (3c); The gear ring of described cam ring (3b) side end face engages with the end face gear ring of axle sleeve (3c), and the gear ring of cam ring (3b) opposite side end face engages with the end face gear ring of external cam (3a); Described switch module comprises multiple switch (9) being arranged on camshaft (3) side, often organizes cam pack (8) correspondence and installs a switch (9); It is characterized in that: the upper coaxial sheathed rotary transformer (5) of described camshaft (3).
2. can detect the adjustable cam controller of camming movement and switch adhesion as claimed in claim 1, it is characterized in that: the rotor of described rotary transformer (5) is connected with camshaft (3), fixing by spring leaf (14) flexibility between the stator of rotary transformer (5) and controller case (2).
3. can detect the adjustable cam controller of camming movement and switch adhesion as claimed in claim 1, it is characterized in that: the axle head of described camshaft (3) is connected with the output shaft (16) of rotary transformer (5) by shaft coupling (15), the rotor of rotary transformer (5) and output shaft (16) are fixed, and the stator of rotary transformer (5) is fixed by mounting flange (17) and controller case (2).
4. the detected camming movement as described in any one of claim 1 ~ 3 and the adjustable cam controller of switch adhesion, is characterized in that: described rotary transformer (5) is arranged on inside or the outside of controller case (2).
5. can detect the adjustable cam controller of camming movement and switch adhesion as claimed in claim 1, it is characterized in that: at least two group cam packs (8), be provided with stop means, described stop means is one or more the first spacer pins (18) be arranged on inside the end face gear ring of cam ring (3b) side, one or more the second spacer pin (19) be arranged on inside cam ring (3b) opposite side end face gear ring, one or morely be arranged on the first stopper slot (20) inside the end face gear ring of external cam (3a) side and one or more the second stopper slot (21) be arranged on inside the end face gear ring of axle sleeve (3c) side, described first spacer pin (18) embeds in corresponding the first stopper slot (20) successively, and the second spacer pin (19) embeds in corresponding the second stopper slot (21) successively, described first spacer pin (18) can carry out back rotation along the arc length direction of corresponding the first stopper slot (20), and the second spacer pin (19) can carry out back rotation along the arc length direction of corresponding the second stopper slot (21).
6. can detect the adjustable cam controller of camming movement and switch adhesion as claimed in claim 5, it is characterized in that: with stop means cam pack (8) corresponding to switch (9) be switch with normally closed contact forced switching-off function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210298494.7A CN102854837B (en) | 2012-08-21 | 2012-08-21 | Adjustable cam controller capable of detecting cam motion and switch adhesion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210298494.7A CN102854837B (en) | 2012-08-21 | 2012-08-21 | Adjustable cam controller capable of detecting cam motion and switch adhesion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102854837A CN102854837A (en) | 2013-01-02 |
| CN102854837B true CN102854837B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210298494.7A Active CN102854837B (en) | 2012-08-21 | 2012-08-21 | Adjustable cam controller capable of detecting cam motion and switch adhesion |
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| CN (1) | CN102854837B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113703390B (en) * | 2021-09-03 | 2022-11-29 | 扬州大祺自动化技术有限公司 | Multi-press machine synchronization method and preconditioning method based on electronic cam controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3477792B2 (en) * | 1994-03-04 | 2003-12-10 | 三菱電機株式会社 | Motion control device |
| CN2211617Y (en) * | 1994-11-25 | 1995-11-01 | 沈阳市重工电器设备厂 | Cam controller |
| CN2283272Y (en) * | 1996-02-07 | 1998-06-03 | 沈阳市重工电器设备厂 | Double-breakpoint cam-adjusting host command controller |
| CN202120155U (en) * | 2011-06-17 | 2012-01-18 | 无锡职业技术学院 | Mechanical-electronic combined cam controller |
| CN202794959U (en) * | 2012-08-21 | 2013-03-13 | 无锡市拓发自控设备有限公司 | Adjustable cam controller capable of detecting movement of cam and adhesion of switch |
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- 2012-08-21 CN CN201210298494.7A patent/CN102854837B/en active Active
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