CN216846202U - Segment difference detection device - Google Patents
Segment difference detection device Download PDFInfo
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- CN216846202U CN216846202U CN202122655301.6U CN202122655301U CN216846202U CN 216846202 U CN216846202 U CN 216846202U CN 202122655301 U CN202122655301 U CN 202122655301U CN 216846202 U CN216846202 U CN 216846202U
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Abstract
The application provides a segment difference detection device, including positioning mechanism, determine module and processing unit, determine module sets up on positioning mechanism, and processing unit electric connection determine module. The detection assembly comprises a fixing frame, at least one telescopic probe rod, at least one sensor group and at least one beacon, the fixing frame comprises a bottom plate and a plurality of side plates, the side plates are arranged on one side of the bottom plate to enclose an accommodating space, and the bottom plate is arranged on the other side, opposite to the positioning mechanism, of the fixing base plate. The telescopic probe rod movably penetrates through the bottom plate and comprises a head and a tail opposite to the head, the head is exposed out of the accommodating space and used for abutting against part of the surface of the workpiece, the tail is accommodated in the accommodating space, and the beacon is fixedly arranged at the tail. The section difference detection device provided by the application has the advantages of high automation degree, good reproducibility of the judgment result and high judgment efficiency.
Description
Technical Field
The present application relates to a level difference detection device.
Background
The flatness of each part is required to be checked before the product is assembled, and people touch the parts through hands in the conventional method to sense whether the parts are broken or not. The method has the advantages of strong subjectivity, easy product quality inspection failure and low inspection efficiency of the bulges or the pits.
SUMMERY OF THE UTILITY MODEL
For solving the problem in the background art, this application provides a poor detection device of section, including positioning mechanism, determine module and processing unit, determine module set up in positioning mechanism is last, processing unit electric connection determine module.
The positioning mechanism comprises a fixed substrate and a pressing component arranged on one side of the fixed substrate, and the pressing component is used for fixing a workpiece on the fixed substrate.
The detection assembly comprises a fixed frame, at least one telescopic probe rod, at least one sensor group and at least one beacon, the fixed frame comprises a bottom plate and a plurality of side plates, the side plates are arranged on one side of the bottom plate to enclose an accommodating space, and the bottom plate is arranged on the other side, opposite to the positioning mechanism, of the fixed base plate.
The telescopic probe rod can movably penetrate through the bottom plate, the telescopic probe rod comprises a head and a tail opposite to the head, the head is exposed out of the accommodating space, the head is used for abutting against part of the surface of the workpiece, the tail is accommodated in the accommodating space, and the beacon is fixedly arranged at the tail.
The sensor group is fixedly arranged on one side of the side plate, which faces the accommodating space, and is electrically connected with the processing unit, the sensor group is used for sensing actual measurement position information of the beacon, reference position information is stored in the processing unit, and the processing unit judges whether part of the surface of the workpiece abutted by the head is qualified or not according to the actual measurement position information and the reference position information.
Further, the sensor group includes upper limit sensor and lower limit sensor, upper limit sensor with lower limit sensor follows the afterbody extending direction interval set up in the curb plate orientation one side of accommodation space, the beacon includes upper limit marker and lower limit marker, upper limit marker with lower limit marker interval set up in the afterbody, measured position information include by upper limit sensor sensing the first measured position information of upper limit marker and by lower limit sensor sensing the second measured position information of lower limit marker.
Furthermore, the upper limit sensor and the lower limit sensor are photoelectric switches.
Furthermore, the detection assembly further comprises a height-adjusting assembly, the height-adjusting assembly comprises a fastener and a height-adjusting block, the side plate penetrates through a groove, the groove extends along the extending direction of the tail portion, part of the fastener penetrates through the groove to be connected with the height-adjusting block, and the upper limit sensor and the lower limit sensor are arranged on one side of the height-adjusting block.
Furthermore, the heightening component further comprises a heightening sheet, the heightening sheet is arranged between the upper limiting sensor and the heightening block, and the heightening sheet is further arranged between the lower limiting sensor and the heightening block.
Furthermore, the detection assembly further comprises a first elastic member, the telescopic probe rod further comprises a convex ring, the convex ring is sleeved on the outer side of the head, the first elastic member is sleeved on the head, one end of the first elastic member abuts against the convex ring, and the other end of the first elastic member abuts against one side, away from the accommodating space, of the bottom plate.
Furthermore, the detection assembly further comprises a second elastic piece, the second elastic piece is sleeved on the tail portion, and the second elastic piece is arranged between the bottom plate and the beacon.
Furthermore, the fixed substrate comprises a first surface and a second surface opposite to the first surface, the first surface is used for supporting the workpiece, a plurality of openings are formed in the fixed substrate at intervals, the openings penetrate through the first surface and the second surface, the abutting component is arranged on the first surface, the bottom plate is arranged on the second surface, and the head penetrates through the openings to abut against part of the surface of the workpiece.
Furthermore, the positioning mechanism further comprises a supporting bracket, the supporting bracket comprises two supporting parts and a connecting part connected between the two supporting parts, the connecting part is arranged on the second surface between the two adjacent openings, and the supporting parts are accommodated in the openings.
Further, the positioning mechanism further comprises a plurality of supporting columns, and the supporting columns are arranged on the second surface at intervals.
The segment difference detection device provided by the application senses the actually measured position information of the beacon through the sensor group, the position information of the beacon corresponds to the concave-convex information of a certain position on the outer surface of the workpiece supported by the head of the telescopic probe rod, and then whether segment difference exists in the certain position on the outer surface of the workpiece can be known by judging the actually measured position information and the prestored reference position range information through the processing unit.
Drawings
Fig. 1 is an overall schematic view of a level difference detection apparatus according to an embodiment of the present application.
Fig. 2 is an overall schematic view of a detection unit in the level difference detection apparatus shown in fig. 1.
FIG. 3 is a schematic view of another angle of the detection assembly shown in FIG. 2.
Fig. 4 is a schematic view of the level difference detecting apparatus shown in fig. 1 for setting a workpiece.
Fig. 5 is a sectional view of the level difference detecting unit shown in fig. 4 taken along the line V-V.
Description of the main elements
Level difference detection device 100
Fixed substrate 11
Support part 141
Connecting part 142
Fixing frame 21
Telescopic probe 22
Convex ring 223
Beacon 24
Height-adjusting assembly 25
Height adjusting piece 253
First elastic member 26
Second elastic member 27
Accommodating space R
The following detailed description will further illustrate the present application in conjunction with the above-described figures.
Detailed Description
The following description will refer to the accompanying drawings to more fully describe the present disclosure. There is shown in the drawings exemplary embodiments of the present application. This application may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Like reference numerals designate identical or similar components.
Referring to fig. 1, the present application provides a level difference detecting apparatus 100 for checking whether a level difference exists on an outer surface 201 (see fig. 5) of a workpiece 200 (see fig. 4). Wherein the level difference refers to a state in which the surface of the object is uneven, which is easily perceived by touch. The level difference detecting apparatus 100 includes a plurality of positioning mechanisms 10, a plurality of detecting elements 20, and a processing unit 30. The detecting element 20 is disposed on the positioning mechanism 10, the detecting element 20 is configured to determine concave-convex information at a certain position on the outer surface 201 of the sensing workpiece 200, the processing unit 30 stores reference information at the certain position, and the processing unit 30 determines whether a step exists at the certain position on the outer surface 201 according to the concave-convex information and the reference information.
Referring to fig. 1, the positioning mechanism 10 includes a fixed substrate 11, a pressing component 12, and a supporting pillar 13. The fixing substrate 11 includes a first surface 111 and a second surface 112, the first surface 111 and the second surface 112 are disposed oppositely, the pressing component 12 is disposed on the first surface 111, and the pressing component 12 is used for fixing the workpiece 200 on the first surface 111. The supporting pillars 13 are disposed on the second surface 112, and the supporting pillars 13 are used for supporting the fixed substrate 11. The fixing substrate 11 is further provided with a plurality of openings 113 at intervals, the openings 113 penetrate through the first surface 111 and the second surface 112, and a portion of the outer surface 201 of the workpiece 200 is exposed from the openings 113 (see fig. 5).
Referring to fig. 1, 2 and 3, the detecting assembly 20 is disposed on the second surface 112, and the detecting assembly 20 includes a fixing frame 21, a plurality of telescopic probes 22, a plurality of sensor groups 23 and a plurality of beacons 24. The fixing frame 21 includes a bottom plate 211 and a plurality of side plates 212, the side plates 212 are disposed on one side of the bottom plate 211 to define an accommodating space R, and the bottom plate 211 is disposed on the second surface 112. The retractable probe 22 can movably pass through the bottom plate 211, the retractable probe 22 includes a head portion 221 and a tail portion 222 opposite to the head portion 221, the head portion 221 is exposed out of the accommodating space R, and the head portion 221 extends into the opening 113 and abuts against a position of an outer surface 201 (see fig. 5) of the workpiece 200. The tail portion 222 is accommodated in the accommodating space R, and the beacon 24 is fixedly disposed on the tail portion 222. The sensor group 23 is fixedly disposed on one side of the side plate 212 facing the accommodating space R, the sensor group 23 is electrically connected to the processing unit 30, the sensor group 23 is configured to sense actual measurement position information of the beacon 24, the processing unit 30 stores reference position range information of the beacon 24, the processing unit 30 determines whether a step exists at a certain position on the outer surface of the workpiece 200 according to the actual measurement position information and the reference position information, specifically, when the actual measurement position information is within the reference position information range, the processing unit 30 determines that no step exists at the certain position, and when the actual measurement position information exceeds the reference position information range, the processing unit 30 determines that a step exists at the certain position. The reference position range information may be obtained by measuring position information of a standard workpiece 200 without step difference and an allowable tolerance, different workpieces may have different reference position range information due to different external surface shapes, materials and allowable tolerances, and the processing Unit 30 may include a Central Processing Unit (CPU), other general purpose processors (DAP), Digital signal processors (Digital image processor, DAP), Application specific Integrated Circuit (AAIC), and the like.
The step difference detection device 100 provided by the present application senses the actual measurement position information of the beacon 24 through the sensor group 23, the position information of the beacon 24 corresponds to the concave-convex information of a certain position of the outer surface 201 of the workpiece 200 abutted by the head 221 of the telescopic feeler lever 22, and then the processing unit 30 determines the actual measurement position information and the pre-stored reference position range information to know whether there is a step difference at the certain position of the outer surface 201 of the workpiece 200.
Referring to fig. 2 and 3, in the present embodiment, the sensor group 23 includes an upper limit sensor 231 and a lower limit sensor 232, the upper limit sensor 231 and the lower limit sensor are disposed at intervals on one side of the side plate 212 facing the accommodating space R along an extending direction (not shown) of the tail portion 222, the beacon 24 includes an upper limit mark 241 and a lower limit mark 242, the upper limit mark 241 and the lower limit mark 242 are disposed at intervals on the tail portion 222, the measured position information includes first measured position information and second measured position information, the upper limit sensor 231 senses the upper limit mark 241 to obtain the first measured position information, and the lower limit sensor 232 senses the lower limit mark 242 to obtain the second measured position information. The steps of specifically determining whether there is a step at a certain position of the outer surface include the following steps:
S1, determining a reference zero point, which specifically comprises the following steps: first, a standard no level difference workpiece 200 is prepared, and the standard no level difference workpiece 200 is a standard part meeting the product quality standard. The standard no-level-difference workpiece 200 is then fixed to the first surface 111 by the pressing component 12. Then, the head 221 of the telescopic probe 22 passes through the opening 113 and abuts against the standard no-step workpiece 200 at a certain position. At this time, the upper limit sensor 231 senses the position information of the upper limit mark 241, which is marked as A0The lower limit sensor 232 senses the position information of the lower limit marker 242,is marked as B0. The reference zero point is marked as (A)0，B0)。
S2, determining the upper limit position and the lower limit position, which specifically comprises the following steps: firstly, an upper deviation limit amount P1 and a lower deviation limit amount P2 are determined, wherein the sizes of the upper deviation limit amount P1 and the lower deviation limit amount P2 depend on the specific requirements of different workpieces. Then, the upper limit sensor 231 is moved to a position P1 away from the lower limit sensor 232 along the extending direction of the tail 222, and the lower limit sensor 232 is moved to a position P2 away from the upper limit sensor 231 along the extending direction of the tail 222, and finally, the upper limit sensor 231 senses the position information of the upper limit mark 241, which is marked as a 0+ P1; the lower limit sensor 232 senses the position information of the lower limit marker 242, which is marked as B0+ P2, and finally, obtaining the reference position range information, noted as (A)0+P1，B0+ P2). In the present embodiment, the deviation upper limit amount P1 is 0.15 mm, the deviation lower limit amount P2 is 0.35 mm, and the reference position range information is (a)0+0.15，B0+0.35) stored in the processing unit 30.
S3 referring to FIG. 5, the method for measuring the workpiece 200 includes the following steps: firstly, the workpiece 200 with no segment difference of the standard brick is taken down, and then the workpiece 200 to be measured is fixed on the first surface 111. Then, the head 221 of the telescopic probe 22 passes through the opening 113 and abuts against a position of the workpiece 200 to be measured. At this time, the upper limit sensor 231 senses first measured position information of the upper limit mark 241, which is denoted as a, the lower limit sensor 232 senses second measured position information of the lower limit mark 242, which is denoted as b, and finally, measured position information is obtained, which is denoted as (a, b).
S4, judging whether the workpiece 200 to be detected has a section difference, the processing unit 30 judges that: a is less than or equal to A0+0.15 and b.ltoreq.B0And +0.35, if the two are simultaneously established, the processing unit 30 determines that the workpiece 200 to be measured has no step, and if the two are not simultaneously established, the processing unit 30 determines that the workpiece 200 to be measured has a step.
Referring to fig. 2 and 3, in the present embodiment, the detecting assembly 20 further includes an elevation assembly 25, the elevation assembly 25 includes a fastening member 251 and an elevation block 252, the side plate 212 is provided with a slot 213 therethrough, the slot 213 extends along the extending direction of the tail portion 222, a portion of the fastening member 251 passes through the slot 213 to connect the elevation block 252, the fastening member 251 can move in the slot 213, the upper limit sensor 231 and the lower limit sensor 232 are disposed at one side of the elevation block 252, and continuous position adjustment of the upper limit sensor 231 and the lower limit sensor 232 can be achieved by adjusting the position of the fastening member 251 in the slot 213. Wherein, the fastener 251 is a screw, and the height-adjusting block 252 is provided with a screw hole matched with the screw. In other embodiments of the present application, the fastening element 251 may also be other concave-convex engaging elements.
Referring to fig. 3, in the present embodiment, the height-adjusting assembly 25 further includes a height-adjusting piece 253, and the height-adjusting piece 253 is disposed between the upper limit sensor 231 and the height-adjusting block 252, or the height-adjusting piece 253 is disposed between the lower limit sensor 232 and the height-adjusting block 252. Specifically, the height-adjusting piece 253 is 0.35 mm thick, so that stepped position adjustment of the upper limit sensor 231 and the lower limit sensor 232 can be realized by inserting the integral number of height-adjusting pieces 253, and the difficulty in adjustment is reduced.
Referring to fig. 2 and 3, in the present embodiment, the detecting assembly 20 further includes a first elastic member 26, the telescopic detecting rod 22 further includes a protruding ring 223, the protruding ring 223 is sleeved outside the head 221, the first elastic member 26 is sleeved on the head 221, one end of the first elastic member 26 abuts against the protruding ring 223, the other end abuts against one side of the bottom plate 211 departing from the accommodating space R, and the first elastic member 26 is in a compressed state, so that the head 221 always abuts against a certain position of the outer surface 201 (see fig. 5) of the workpiece 200.
In this embodiment, the detecting assembly 20 further includes a second elastic member 27, the second elastic member 27 is movably sleeved on the tail portion 222, the second elastic member 27 is disposed between the beacon 24 and the bottom plate 211, and the second elastic member 27 is used for blocking the movement of the beacon 24, so as to prevent the movement range of the telescopic feeler lever 22 from being too large, and meanwhile, the second elastic member 27 can also play a role in buffering, so as to reduce rigid collision between the beacon 24 and the bottom plate 211.
In this embodiment, the positioning mechanism 10 further includes a supporting bracket 14, the supporting bracket 14 includes two supporting portions 141 and a connecting portion 142 connected between the two supporting portions 141, the connecting portion 142 is disposed on the second surface 112 between two adjacent openings 113, the supporting portions 141 are fixedly accommodated in the openings 113, and the supporting portions 141 are used for supporting the workpiece 200.
Hereinbefore, specific embodiments of the present application are described with reference to the drawings. However, those skilled in the art will appreciate that various modifications and substitutions can be made to the specific embodiments of the present application without departing from the spirit and scope of the application. Such modifications and substitutions are intended to be within the scope of the present application.
Claims (10)
1. The section difference detection device is characterized by comprising a positioning mechanism, a detection assembly and a processing unit, wherein the detection assembly is arranged on the positioning mechanism, and the processing unit is electrically connected with the detection assembly;
the positioning mechanism comprises a fixed substrate and a pressing component arranged on one side of the fixed substrate, and the pressing component is used for fixing a workpiece on the fixed substrate;
the detection assembly comprises a fixed frame, at least one telescopic probe rod, at least one sensor group and at least one beacon, the fixed frame comprises a bottom plate and a plurality of side plates, the side plates are arranged on one side of the bottom plate to enclose an accommodating space, and the bottom plate is arranged on the other side, opposite to the positioning mechanism, of the fixed base plate;
the telescopic probe rod can movably penetrate through the bottom plate and comprises a head part and a tail part opposite to the head part, the head part is exposed out of the accommodating space, the head part is used for abutting against part of the surface of the workpiece, the tail part is accommodated in the accommodating space, and the beacon is fixedly arranged at the tail part;
The sensor group is fixedly arranged on one side, facing the accommodating space, of the side plate and is electrically connected with the processing unit, the sensor group is used for sensing actual measurement position information of the beacon, reference position information is stored in the processing unit, and the processing unit judges whether part of the surface of the workpiece abutted by the head is qualified or not according to the actual measurement position information and the reference position information.
2. The level difference detecting device as claimed in claim 1, wherein the sensor group includes an upper limit sensor and a lower limit sensor, the upper limit sensor and the lower limit sensor are disposed at an interval along the extending direction of the tail portion on one side of the side plate facing the accommodating space, the beacon includes an upper limit marker and a lower limit marker, the upper limit marker and the lower limit marker are disposed at an interval on the tail portion, and the measured position information includes first measured position information of the upper limit marker sensed by the upper limit sensor and second measured position information of the lower limit marker sensed by the lower limit sensor.
3. The level difference detecting device according to claim 2, wherein the upper limit sensor and the lower limit sensor are photoelectric switches.
4. The step difference detecting device according to claim 2, wherein the detecting assembly further comprises an elevation assembly, the elevation assembly includes a fastening member and an elevation block, the side plate is provided with a slot extending therethrough, the slot extends along an extending direction of the tail portion, a portion of the fastening member passes through the slot to connect with the elevation block, and the upper limit sensor and the lower limit sensor are disposed on one side of the elevation block.
5. The level difference detecting device as claimed in claim 4, wherein the height adjusting component further comprises a height adjusting piece, the height adjusting piece is disposed between the upper limiting sensor and the height adjusting block, and the height adjusting piece is further disposed between the lower limiting sensor and the height adjusting block.
6. The step difference detecting device according to claim 1, wherein the detecting assembly further includes a first elastic member, the retractable probe further includes a protruding ring, the protruding ring is sleeved outside the head, the first elastic member is sleeved on the head, one end of the first elastic member abuts against the protruding ring, and the other end of the first elastic member abuts against a side of the bottom plate away from the accommodating space.
7. The level difference detecting device as claimed in claim 1, wherein the detecting assembly further comprises a second elastic member, the second elastic member is sleeved on the tail portion, and the second elastic member is disposed between the bottom plate and the beacon.
8. The level difference detecting device according to claim 1, wherein the fixing substrate includes a first surface and a second surface opposite to the first surface, the first surface is used for supporting the workpiece, the fixing substrate is provided with a plurality of openings at intervals, the openings penetrate through the first surface and the second surface, the pressing member is disposed on the first surface, the bottom plate is disposed on the second surface, and the head portion penetrates through the openings to press against a portion of the surface of the workpiece.
9. The step difference detecting device according to claim 8, wherein the positioning mechanism further comprises a supporting bracket, the supporting bracket comprises two supporting portions and a connecting portion connected between the two supporting portions, the connecting portion is disposed on the second surface between two adjacent openings, and the supporting portions are received in the openings.
10. The level difference detecting device according to claim 8, wherein the positioning mechanism further includes a plurality of support columns, and the support columns are disposed at intervals on the second surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122655301.6U CN216846202U (en) | 2021-11-02 | 2021-11-02 | Segment difference detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122655301.6U CN216846202U (en) | 2021-11-02 | 2021-11-02 | Segment difference detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216846202U true CN216846202U (en) | 2022-06-28 |
Family
ID=82098296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122655301.6U Active CN216846202U (en) | 2021-11-02 | 2021-11-02 | Segment difference detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216846202U (en) |
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2021
- 2021-11-02 CN CN202122655301.6U patent/CN216846202U/en active Active
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