CN211760233U - Workpiece detection mechanism - Google Patents
Workpiece detection mechanism Download PDFInfo
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- CN211760233U CN211760233U CN201922016011.XU CN201922016011U CN211760233U CN 211760233 U CN211760233 U CN 211760233U CN 201922016011 U CN201922016011 U CN 201922016011U CN 211760233 U CN211760233 U CN 211760233U
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- sensor
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- detection pin
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Abstract
The invention relates to the field of machining, in particular to a workpiece detection mechanism which comprises a shell, a sensor and a detection pin, wherein the shell is provided with a groove; the shell is provided with a through hole; the upper part of the through hole is provided with a step; the detection pin is positioned in the through hole; a spring is sleeved outside the detection pin and is positioned on the step; a strip hole is also formed in the shell; the bar holes are not parallel to the through holes; the sensor is positioned in the strip hole; the middle part of the detection pin is provided with a first groove. The sensor is installed in the shell, and then whether a workpiece exists or not is detected by detecting the movement of the pin, so that the method for indirectly measuring the workpiece can protect the sensor from being damaged by the workpiece. The structure can avoid the contact between the sensor and the workpiece, and the service life of the sensor is greatly prolonged by utilizing the indirect sensing mode for detection.
Description
Technical Field
The invention relates to the field of machining, in particular to a workpiece detection mechanism.
Background
The traditional processing mode is that a workpiece is manually placed on a corresponding workbench position and then processed in the next step. With the progress of the times, the current mechanical processing is more and more intelligent, the intelligent processing only needs to use a mechanical hand to move a workpiece to a table position, but the mechanical hand is not likely to clamp parts in the carrying process, the existing detection mode is to directly arrange a sensor on the table position for detection, and whether the workpiece is placed on the table position or not is judged according to the distance between the workpiece and the sensor, so that the sensor is exposed outside and is likely to be damaged by the workpiece, and the detection function is lost.
Disclosure of Invention
The invention provides a workpiece detection mechanism aiming at the problem that the sensor is possibly damaged when the sensor is directly detected by exposing outside in the current detection.
In order to achieve the above purpose, the invention provides the following technical scheme:
a workpiece detection mechanism comprises a shell, a sensor and a detection pin; the shell is provided with a through hole; the upper part of the through hole is provided with a step; the detection pin is positioned in the through hole; a spring is sleeved outside the detection pin and is positioned on the step; a strip hole is also formed in the shell; the bar holes are not parallel to the through holes; the sensor is positioned in the strip hole; a first groove is formed in the middle of the detection pin; the detection port of the sensor is aligned with the detection pin; the notch of the first groove faces the sensor.
Preferably, the upper part of the detection pin is provided with a limit boss, and the diameter of the limit boss is larger than that of the step. The spring is prevented from being ejected by the boss at the top of the detection pin.
Preferably, the bottom of the detection pin is provided with a second groove, and a clamping ring is arranged outside the second groove. The bottom of the detection pin passes through the clamping ring, so that the detection pin can be prevented from being ejected out of the through hole under the action of the spring when the workpiece is taken away.
Preferably, the bottom of the through hole is provided with a first shaft sleeve, and the lower part of the step is provided with a second shaft sleeve. Be equipped with first axle sleeve and second axle sleeve in the through-hole, first axle sleeve and second axle sleeve and shell interference fit not only can lead to the detection round pin like this, also can play the effect of protection to the detection round pin.
Preferably, the bar hole is perpendicular to the through hole. Therefore, the distance between the sensor and the detection pin is constant, and the detection result is more accurate.
Preferably, the housing is provided with a mounting hole. The housing can be fixed on the operation table through the mounting hole.
Compared with the prior art, the invention has the beneficial effects that: when no workpiece is positioned on the upper part of the detection pin, the detection pin springs upwards under the action of the spring, the first groove in the middle of the detection pin is positioned above the sensor, the distance between the sensor and the detection pin is smaller than the detection distance of the sensor, and the sensor can detect signals; when the workpiece is placed on the detection pin, the detection pin moves downwards under the action of the gravity of the workpiece, the first groove in the middle of the detection pin is opposite to the sensor, the distance between the first groove and the sensor is larger than the distance which can be detected by the sensor, and the sensor loses a signal, so that the workpiece is arranged on the upper portion of the detection pin. The sensor is installed in the shell, and then whether a workpiece exists or not is detected by detecting the movement of the pin, so that the method for indirectly measuring the workpiece can protect the sensor from being damaged by the workpiece. The structure can avoid the contact between the sensor and the workpiece, and the service life of the sensor is greatly prolonged by utilizing the indirect sensing mode for detection.
Description of the drawings:
fig. 1 is a schematic structural diagram of a workpiece detection mechanism provided in the present application;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a cross-sectional view in use;
FIG. 4 is a cross-sectional view of the housing;
fig. 5 is a sectional view of the detection pin.
The labels in the figure are: the method comprises the following steps of 1-a shell, 11-a through hole, 12-a hole, 13-a step, 14-a mounting hole, 2-a sensor, 3-a detection pin, 31-a first groove, 32-a limiting boss, 33-a second groove, 34-a snap ring, 4-a spring, 5-a first shaft sleeve, 6-a second shaft sleeve and 7-a workpiece.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5, the present application provides a workpiece detection mechanism including a housing 1, a sensor 2, and a detection pin 3; the shell 1 is provided with a through hole 11; the upper part of the through hole 11 is provided with a step 13; the detection pin 3 is positioned in the through hole 11; the spring 4 is sleeved outside the detection pin 3, the spring 4 is positioned on the step 13, the bottom of the spring 4 can be fixed with the bottom of the step 13 or not, and the diameter of the spring 4 is smaller than that of the step 13 but larger than that of the lower through hole 11, so that the spring 4 cannot fall into the lower through hole 11 and only can be positioned on the step 13. A strip hole 12 is also arranged in the shell 1; the strip holes 12 are not parallel to the through holes 11, and preferably, the strip holes 12 are perpendicular to the through holes 11, so that the detection result is more accurate. The sensor 2 is mounted in the bar hole 12. The bottom of the passage is provided with a first shaft sleeve 5, the lower part of the step 13 is provided with a second shaft sleeve 6, and the first shaft sleeve 5 and the second shaft sleeve 6 are in interference fit. Two mounting holes 14 are also formed in the housing 1, and bolts can pass through the mounting holes 14 to fix the housing 1 to an operating table.
As shown in fig. 2, 3 and 5, a limit boss 32 is arranged at the upper part of the detection pin 3, and the diameter of the limit boss 32 is larger than that of the step 13; the middle part of the detection pin 3 is provided with a first groove 31. The bottom of the detection pin 3 is provided with a second groove 33, and a snap ring 34 is arranged outside the second groove 33.
The working process is as follows: as shown in fig. 2, when no workpiece is positioned on the upper part of the detection pin 3, the detection pin 3 springs upwards under the action of the spring 4, the first groove 31 in the middle of the detection pin 3 is positioned above the sensor 2, and the distance between the sensor 2 and the detection pin 3 is smaller than the detection distance of the sensor 2, so that the sensor 2 can detect signals. As shown in fig. 3, when the workpiece 7 is placed on the detection pin 3, the detection pin 3 moves downward under the action of the gravity of the workpiece, the first groove 31 in the middle of the detection pin 3 faces the sensor 2, the distance between the first groove 31 and the sensor 2 is greater than the distance which can be detected by the sensor 2, and the sensor 2 loses a signal, which indicates that there is a workpiece on the upper part of the detection pin 3.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The workpiece detection mechanism is characterized by comprising a shell (1), a sensor (2) and a detection pin (3); the shell (1) is provided with a through hole (11); the upper part of the through hole (11) is provided with a step (13); the detection pin (3) is positioned in the through hole (11); a spring (4) is sleeved outside the detection pin (3), and the spring (4) is positioned on the step (13); the detection port of the sensor (2) is aligned with the detection pin (3); the middle part of the detection pin (3) is provided with a first groove (31), and the notch of the first groove (31) faces the sensor (2).
2. The workpiece detection mechanism according to claim 1, characterized in that the upper part of the detection pin (3) is provided with a limit boss (32), and the diameter of the limit boss (32) is larger than that of the step (13).
3. The workpiece detection mechanism according to claim 1, characterized in that a second groove (33) is formed at the bottom of the detection pin (3), and a snap ring (34) is arranged outside the second groove (33).
4. The workpiece detection mechanism according to claim 1, characterized in that the bottom of the through hole (11) is provided with a first bushing (5), and the lower part of the step (13) is provided with a second bushing (6).
5. The workpiece detection mechanism according to claim 1, characterized in that a bar hole (12) is arranged in the housing (1), and the bar hole (12) is arranged perpendicular to the through hole (11).
6. The workpiece detection mechanism according to any of claims 1-5, characterized in that the housing (1) is provided with mounting holes (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922016011.XU CN211760233U (en) | 2019-11-20 | 2019-11-20 | Workpiece detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922016011.XU CN211760233U (en) | 2019-11-20 | 2019-11-20 | Workpiece detection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211760233U true CN211760233U (en) | 2020-10-27 |
Family
ID=72963313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922016011.XU Active CN211760233U (en) | 2019-11-20 | 2019-11-20 | Workpiece detection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211760233U (en) |
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2019
- 2019-11-20 CN CN201922016011.XU patent/CN211760233U/en active Active
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