CN209477857U - A kind of workpiece sensing equipment - Google Patents
A kind of workpiece sensing equipment Download PDFInfo
- Publication number
- CN209477857U CN209477857U CN201822203221.5U CN201822203221U CN209477857U CN 209477857 U CN209477857 U CN 209477857U CN 201822203221 U CN201822203221 U CN 201822203221U CN 209477857 U CN209477857 U CN 209477857U
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- China
- Prior art keywords
- workpiece
- pallet
- control system
- plunger
- relay
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Abstract
The utility model discloses a kind of workpiece sensing equipment, including three sensing units, pallet and control circuit；The sensing unit is arranged on pallet, and the control circuit includes PLC control system, resistance R, the first relay KA1 and the second relay KA2；When needing to detect workpiece, PLC control system control output end Y is connected, and the second relay KA2 is connected；It will be on workpiece placement and pallet, if workpiece is correctly placed on pallet, the workpiece is in contact with three conductive probes, since workpiece is conductor, one X1 of input terminal, two X2 of input terminal and the first relay KA1 conducting, at this point, PLC control system exports the signal detected by output end Y.The utility model is when workpiece is normally placed on pallet, and using workpiece as conducting wire, whether detection workpiece is put well, puts just.It does not need safety cover plate of dismantling with changing, convenient and simple with changing.
Description
Technical field
The utility model relates to a kind of workpiece sensing equipment, belong to workpiece processing technology.
Background technique
By optoelectronic switch progress, whether there is or not material at two inside and outside 1# machine material feeding tray position in existing lathe, and whether
Put positive detection.1# machine is not due to needing to adjust only for a kind of part.But in the lathe of subsequent order, since it is desired that replacement zero
Part, after being inherently related to renewal part, the adjustment of optoelectronic switch.When adjustment, internal optoelectronic switch adjusts the peace that must must dismantle
Full cover board involves and saves department from damage, therefore it is more complicated to replace optoelectronic switch.
Utility model content
Purpose of utility model: in order to overcome the deficiencies in the prior art, the utility model provides a kind of workpiece sensing
Equipment places three test points by the way that sensing unit to be placed on material feeding tray on pallet.Workpiece is iron, is good
Conductor, pallet are insulator.Three test points access PLC control system.When workpiece is normally placed on pallet, it is with workpiece
Whether conducting wire, detection workpiece are put well, are put just.It does not need safety cover plate of dismantling with changing, convenient and simple with changing.
Technical solution: to achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of workpiece sensing equipment, including three sensing units, pallet and control circuit；The sensing unit setting exists
On pallet, the pallet is insulator, and the sensing unit is conductive probe, these three sensing units are denoted as conductive probe respectively
One, conductive probe two, conductive probe three, the control circuit include PLC control system, resistance R, the first relay KA1 and
Second relay KA2, the conductive probe one, the first relay KA1, PLC control system the end COM be sequentially connected, conduction visit
Needle two is connect with one X1 of input terminal of PLC control system, and conductive probe three is connect with two X2 of input terminal of PLC control system, and
The output end Y of PLC control system is connect with the second relay KA2.
Preferred: the conductive probe includes plunger, plunger barrel, spring and ball, and the ball is set to plunger barrel
Internal bottom end, the spring are set in plunger barrel, and the tail portion of the plunger is set in plunger barrel, and the spring is located at
Between ball and plunger, the head of the plunger is stretched out outside plunger barrel.
Preferred: the length outside plunger barrel is stretched out between 1-3 mm in the head of the plunger.
Preferred: the sensing unit is circumferentially uniformly distributed along pallet.
Preferred: the pallet is made of nylon or the pallet is made of insulating resin.
A kind of detection method of workpiece, when not needing detection workpiece, PLC control system control output end Y is disconnected, and second
Relay KA2 is disconnected；When needing to detect workpiece, PLC control system control output end Y is connected, and the second relay KA2 is connected；
Workpiece is placed on pallet, if workpiece is correctly placed on pallet, the workpiece is in contact with three conductive probes, by
It is conductor in workpiece, one X1 of input terminal, two X2 of input terminal and the first relay KA1 are connected, at this point, PLC control system
The signal detected is exported by output end Y.
The utility model compared with prior art, has the advantages that
When the utility model replaces workpiece.It only needs material feeding tray assembly (pallet and conductive probe) to connect by screw
Connect on pedestal, in connection the quick connector of M8 can normal use, therefore do not need safety cover plate of dismantling, replacement is convenient.
Detailed description of the invention
Fig. 1 is pallet assembly structure schematic diagram；
Fig. 2 is pallet assembly cross-sectional view；
Fig. 3 is the enlarged diagram of part A in Fig. 2；
Fig. 4 is conductive probe structural schematic diagram；
Fig. 5 is control circuit structural representation；
Wherein, 1 is pallet, and 2 be conductive probe, and 21 be plunger, and 22 be plunger barrel, and 23 be spring, and 24 be ball, and 3 be M8
Quick connector.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that these examples are only used for
Bright the utility model rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art
Member falls within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
A kind of workpiece sensing equipment, including three sensing units, pallet and control circuit；The pallet uses nylon system
At or the pallet be made of insulating resin, pallet is insulator, and the sensing unit is conductive probe, these three biographies
Sense unit is denoted as conductive probe one, conductive probe two, conductive probe three respectively, and the sensing unit circumferentially uniformly divides along pallet
Cloth, the control circuit include PLC control system, resistance R, the first relay KA1 and the second relay KA2, the conduction
Probe one, the first relay KA1, PLC control system the end COM be sequentially connected, the input of conductive probe two and PLC control system
An X1 connection is held, conductive probe three is connect with two X2 of input terminal of PLC control system, and the output end Y of PLC control system and
Two relay KA2 connections.
The conductive probe includes plunger, plunger barrel, spring and ball, and the ball is set to the bottom inside plunger barrel
End, the spring are set in plunger barrel, and the tail portion of the plunger is set in plunger barrel, and the spring is located at ball and column
Between plug, the head of the plunger is stretched out outside plunger barrel.Plunger is made of C1730B material, surface nickel bottom rhodanizing polishing,
Plunger barrel is made of pack fong, and the gold-plated polishing of surface nickel bottom, spring is made of stainless steel, and ball uses brass system
At surface gold-plating polishes, and has spring inside conductive probe, can guarantee to be connected in total travel 6.4mm.It is mounted on pallet
The head of probe is higher than plane 2mm, i.e., the head of the described plunger is stretched out the length outside plunger barrel between 1-3 mm, both be can guarantee
The conducting between timing part pressure probe guarantee probe is put, can also be detected not in the case where part is not put well and is put just
Place workpiece.
A kind of detection method of workpiece, when not needing detection workpiece, PLC control system control output end Y is disconnected, and second
Relay KA2 is disconnected；When needing to detect workpiece, PLC control system control output end Y is connected, and the second relay KA2 is connected；
Workpiece is placed on pallet, if workpiece is correctly placed on pallet, the workpiece is in contact with three conductive probes, by
It is conductor in workpiece, one X1 of input terminal, two X2 of input terminal and the first relay KA1 are connected, at this point, PLC control system
The signal detected is exported by output end Y.If workpiece is not correctly placed on pallet, workpiece at least can with three pass
It leads probe not to be in contact, one X1 of input terminal, two X2 of input terminal and the first relay KA1 are not turned on, and PLC control system passes through defeated
What outlet Y output detected does not turn on signal.
In addition, in normal operation, in clamping (pick-and-place) workpiece, output is disconnected by control system.It will not produce
It is raw abnormal.
Unusual condition: in the case where the system failure, output is connected, and in the case that hand grabs clamping part, be will lead to output and is connect
Ground.But access resistance after, can guarantee it is very small to earth-current, do not cause life endanger and Machine Tool Electric Appliance failure.
When replacing workpiece.It only needs material feeding tray assembly (pallet and conductive probe) to be connected by screw on pedestal,
In connection M8 quick connector can normal use, therefore do not need safety cover plate of dismantling, replacement is convenient.
The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (5)
1. a kind of workpiece sensing equipment, it is characterised in that: including three sensing units, pallet and control circuit；The sensing
Unit is arranged on pallet, and the pallet is insulator, and the sensing unit is conductive probe, these three sensing units are remembered respectively
For conductive probe one, conductive probe two, conductive probe three, the control circuit includes PLC control system, resistance R, the first relay
Device KA1 and the second relay KA2, the conductive probe one, the first relay KA1, PLC control system the end COM successively connect
It connects, conductive probe two is connect with one X1 of input terminal of PLC control system, the input terminal two of conductive probe three and PLC control system
X2 connection, and the output end Y of PLC control system is connect with the second relay KA2.
2. workpiece sensing equipment according to claim 1, it is characterised in that: the conductive probe includes plunger, plunger barrel, bullet
Spring and ball, the ball are set to the bottom end inside plunger barrel, and the spring is set in plunger barrel, the tail of the plunger
Portion is set in plunger barrel, and the spring, between ball and plunger, the head of the plunger is stretched out outside plunger barrel.
3. workpiece sensing equipment according to claim 2, it is characterised in that: the length outside plunger barrel is stretched out on the head of the plunger
Degree is between 1-3 mm.
4. workpiece sensing equipment according to claim 1, it is characterised in that: circumferential uniform point along pallet of the sensing unit
Cloth.
5. workpiece sensing equipment according to claim 1, it is characterised in that: the pallet is made or described of nylon
Pallet is made of insulating resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203221.5U CN209477857U (en) | 2018-12-26 | 2018-12-26 | A kind of workpiece sensing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203221.5U CN209477857U (en) | 2018-12-26 | 2018-12-26 | A kind of workpiece sensing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209477857U true CN209477857U (en) | 2019-10-11 |
Family
ID=68127981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822203221.5U Active CN209477857U (en) | 2018-12-26 | 2018-12-26 | A kind of workpiece sensing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209477857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909800A (en) * | 2018-12-26 | 2019-06-21 | 南京二机齿轮机床有限公司 | A kind of Workpiece detecting device and method |
-
2018
- 2018-12-26 CN CN201822203221.5U patent/CN209477857U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909800A (en) * | 2018-12-26 | 2019-06-21 | 南京二机齿轮机床有限公司 | A kind of Workpiece detecting device and method |
| CN109909800B (en) * | 2018-12-26 | 2023-09-01 | 南京二机齿轮机床有限公司 | Workpiece detection device and method |
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