CN220893286U

CN220893286U - Visual inspection device for inner angle groove of piston rod

Info

Publication number: CN220893286U
Application number: CN202322904114.6U
Authority: CN
Inventors: 徐国明
Original assignee: Ningbo Peiyuan Corp ltd
Current assignee: Ningbo Peiyuan Corp ltd
Priority date: 2023-10-30
Filing date: 2023-10-30
Publication date: 2024-05-03
Anticipated expiration: 2033-10-30

Abstract

The utility model discloses a visual detection device for an inner angle groove of a piston rod, and relates to the field of piston rod processing detection technology, wherein the visual detection device comprises a frame, a supporting platform, a positioning mechanism and a photographing detection mechanism; the positioning mechanism comprises a front end positioning assembly and a rear end positioning assembly; the front end positioning assembly is arranged on one side of the supporting platform; the rear end positioning assembly is arranged on one side, away from the front end positioning assembly, of the supporting platform; the photographing detection mechanism is arranged at one side of the front end positioning assembly, which is far away from the supporting platform; the front end locating component comprises a locating stop block, the locating stop block is located between one end, provided with an inner corner groove, of the piston rod and the photographing detection mechanism, and the locating stop block can slide along the frame and leave a connecting line of the photographing detection mechanism and the piston rod. The utility model has the advantages of good detection automation degree and high detection efficiency.

Description

Visual inspection device for inner angle groove of piston rod

Technical Field

The utility model relates to the technical field of piston rod machining detection, in particular to a visual detection device for an inner angle groove of a piston rod.

Background

When the piston rod is processed, the end head of the piston rod is required to be processed into an inner hexagonal hole. The method comprises the specific steps of firstly drilling the end head of the piston rod, and then punching the hole of the end head of the piston rod into an inner hexagonal hole through punching equipment. In the processing process, the end head of the piston rod is required to be detected in depth after drilling and stamping forming are finished, and finally the shape of the inner hexagonal hole formed by stamping is detected, so that whether the piston rod is a qualified product is judged.

At present, the shape of the inner hexagonal hole of the piston rod is detected usually by manual measurement, each time of detection needs a worker to detect the inner hexagonal hole by using a measuring tool, and the detection efficiency is low.

Disclosure of Invention

The utility model aims to provide a visual detection device for an inner angle groove of a piston rod, which has the advantages of good automation degree and high detection efficiency.

The technical aim of the utility model is realized by the following technical scheme:

The utility model provides a visual detection device for an inner angle groove of a piston rod, which comprises a rack, a supporting platform, a positioning mechanism and a photographing detection mechanism, wherein the rack is arranged on the rack; the supporting platform, the positioning mechanism and the photographing detection mechanism are arranged on the frame; the supporting platform is used for supporting the piston rod; the positioning mechanism comprises a front end positioning assembly and a rear end positioning assembly; the front end positioning component is arranged on one side of the supporting platform and is used for positioning one end of the piston rod, which is provided with an inner angle groove; the rear end positioning assembly is arranged on one side, far away from the front end positioning assembly, of the supporting platform and is used for positioning one end, far away from the inner corner groove, of the piston rod; the photographing detection mechanism is arranged on one side, far away from the supporting platform, of the front end positioning assembly and is used for photographing detection of the piston rod; the front end locating component comprises a locating stop block, the locating stop block is located between one end, provided with an inner corner groove, of the piston rod and the photographing detection mechanism, and the locating stop block can slide along the frame and leave a connecting line of the photographing detection mechanism and the piston rod.

Further, the front end positioning assembly further comprises a front end linear driving piece, the front end linear driving piece is fixed on the frame, the positioning stop block is connected to the driving end of the front end linear driving piece, and the front end linear driving piece can drive the positioning stop block to slide back and forth.

Further, the front end linear driving piece is obliquely arranged relative to the connecting line of the photographing detection mechanism and the piston rod, and the sliding path of the positioning stop block is obliquely arranged in a direction away from the end face, provided with the internal angle groove, of the piston rod, and is deviated from the connecting line of the piston rod and the photographing detection mechanism.

Further, a side of the positioning stopper facing the piston rod is parallel to an end of the piston rod.

Further, the rear end positioning assembly comprises a rear end linear driving piece, and the driving end of the rear end linear driving piece slides along the axial direction of the piston rod.

Further, a step portion is formed at one end of the piston rod, which is far away from the inner corner groove, and the rear end positioning assembly further comprises a side baffle plate, wherein the side baffle plate is connected to the driving end of the rear end linear driving piece and is opposite to the step portion of the piston rod.

Further, the supporting platform comprises two supporting plates which are arranged in parallel, limiting notches which are matched with the peripheral sides of the piston rods are formed in the supporting plates, and the limiting notches in the two supporting plates are aligned.

Further, the visual inspection device further comprises a jacking mechanism, the jacking mechanism is arranged between the two supporting plates, and the jacking mechanism can jack the piston rod upwards from the limiting notch.

Further, the jacking mechanism comprises a jacking plate and a jacking driving piece, wherein the jacking driving piece is fixed at the lower part of the supporting plate, the driving end of the jacking driving piece is arranged upwards, and the jacking plate is connected with the driving end of the jacking driving piece; the end face of one end, far away from the jacking driving piece, of the jacking plate is obliquely arranged.

Further, the visual detection device further comprises an on-site sensor, the on-site sensor is arranged on the supporting plate, and a detection groove aligned with the limiting notch is formed in the on-site sensor.

In summary, the utility model has the following beneficial effects:

According to the visual detection device for the inner angle groove of the piston rod, the piston rod is supported by the supporting platform, the front end positioning component is used for positioning one end, provided with the inner angle groove, of the piston rod, and the rear end positioning component is used for positioning the other end of the piston rod, so that one end part of the inner angle groove of the piston rod is right opposite to the photographing detection mechanism, the photographing detection mechanism is used for photographing and detecting the inner angle groove, the automation of detection functions is realized, and the detection efficiency is improved. The positioning stop block of the front end positioning assembly can slide relative to the frame, so that when the piston rod is placed on the supporting platform, the positioning stop block can be firstly away from the end part of the piston rod by a certain distance, the piston rod can be placed conveniently, and after the piston rod is placed on the supporting platform, the positioning stop block slides along the frame and abuts against the piston rod, so that the positioning of the piston rod is realized. When the photographing detection mechanism needs to photograph and detect the inner angle groove, the positioning stop block slides along the frame to leave the connecting line of the piston rod and the photographing detection mechanism, so that the positioning stop block is prevented from blocking the photographing detection mechanism.

Drawings

Fig. 1 is a schematic perspective view of a visual inspection device for an angular groove in a piston rod according to an embodiment of the present utility model.

Fig. 2 is a schematic perspective view of the piston rod.

Fig. 3 is a schematic perspective view of a supporting platform, a photographing detection mechanism and a positioning mechanism according to an embodiment of the utility model.

Fig. 4 is an enlarged schematic view at a in fig. 3.

In the figure:

1000. Visual detection device of the inner angle groove of the piston rod; 100. a frame; 200. a support platform; 210. a support plate; 220. limiting notch; 300. a positioning mechanism; 310. a front end positioning assembly; 311. positioning a stop block; 312. a front end linear driving member; 313. a driving member body; 314. a connecting plate; 320. a rear end positioning assembly; 321. a rear end linear driving member; 322. side baffles; 323. a driving plate; 400. a photographing detection mechanism; 500. a piston rod; 510. a step portion; 600. an in-situ sensor; 610. a detection groove; 700. a jacking mechanism; 710. a jacking plate; 720. jacking the driving piece; 730. and (5) blanking.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The embodiment discloses a visual inspection device 1000 for an inner angular groove of a piston rod, and referring to fig. 1, the visual inspection device comprises a frame 100, a supporting platform 200, a positioning mechanism 300 and a photographing detection mechanism 400. The supporting platform 200, the positioning mechanism 300 and the photographing detection mechanism 400 are all arranged on the frame 100. The support platform 200 is used for supporting the piston rod 500, the positioning mechanism 300 is used for positioning the piston rod 500, and the photographing detection mechanism 400 detects whether the inner angle groove shape of the piston rod 500 is qualified by photographing.

Referring to fig. 2, the piston rod 500 has a shape with a large diameter at the middle and a small diameter at both ends. The junction of the middle portion and both ends of the piston rod 500 forms a stepped portion 510. The inner angle groove is provided at one end of the piston rod 500.

Referring to fig. 1 to 3, in the present embodiment, the support platform 200 includes two support plates 210 disposed in parallel. Two support plates 210 stand above the frame 100. A gap is formed between the support plates 210. Wherein, each support plate 210 is provided with a limiting notch 220, and the limiting notches 220 on the two support plates 210 are aligned. The limiting gap 220 is matched with the circumferential side of the piston rod 500, that is, the limiting gap 220 is in an arc shape close to the circumferential curvature of the piston rod 500, and the size of the limiting gap 220 is slightly larger than that of a part with a larger diameter of the piston rod 500. The two ends of the larger diameter portion of the piston rod 500 are respectively embedded in the limit notches 220 of the two support plates 210, so that the piston rod 500 spans over the two support plates 210, thereby supporting the piston rod 500 by the support platform 200 and positioning the piston rod 500 in the horizontal direction.

Referring to fig. 4, an in-situ sensor 600 is provided on one support plate 210 far from the photographing detection mechanism 400, and a detection groove 610 aligned with the limit notch 220 is provided on each in-situ sensor 600. When the piston rod 500 is placed in the limiting gap 220, two ends of the piston rod 500 are respectively located in the detection grooves 610 of the two in-situ sensors 600, and the in-situ sensors 600 can detect that the piston rod 500 is placed in place.

Referring to fig. 1 and 3, the positioning mechanism 300 includes a front end positioning assembly 310 and a rear end positioning assembly 320. The front end positioning assembly 310 is disposed on the outer side of one of the support plates 210 for positioning one end of the piston rod 500 provided with the inner corner groove. The rear end positioning assembly 320 is disposed on a side of the other support platform 200 away from the front end positioning assembly 310, and is used for positioning an end of the piston rod 500 away from the internal corner groove. The front end positioning assembly 310 and the rear end positioning assembly 320 are respectively used for positioning two ends of the piston rod 500 to position the piston rod 500 in the axial direction, so that the piston rod 500 is at a set photographing detection position, and further the photographing detection mechanism 400 is convenient for detection.

In this embodiment, the photographing detection mechanism 400 is disposed on a side of the front end positioning assembly 310 away from the supporting platform 200, and is used for photographing and detecting the piston rod 500. The photographing detection mechanism 400 is located on an extension of the axis of the piston rod 500 to better acquire an image of the end of the piston rod 500. The photographing detection mechanism 400 determines whether the interior angle groove shape of the piston rod 500 is acceptable by acquiring an image of one end of the piston rod 500 where the interior angle groove is provided and comparing with a built-in standard image. The photographing detection mechanism 400 belongs to the prior art, and is not described in detail herein.

The front end positioning assembly 310 includes a positioning stop 311 and a front end linear drive 312. The front end linear driving piece 312 is fixed on the frame 100, the positioning stop block 311 is connected to the driving end of the front end linear driving piece 312, and the front end linear driving piece 312 can drive the positioning stop block 311 to slide back and forth.

Wherein, the positioning block 311 is located between the end of the piston rod 500 provided with the inner angle groove and the photographing detection mechanism 400. When the driving end of the front linear driving member 312 is extended, the positioning block 311 can be driven to move to the end of the piston rod 500 in the direction approaching to the piston rod 500 so as to position one end of the piston rod 500 provided with the internal angle groove; when the driving end of the front-end linear driving piece 312 is contracted, the positioning stop block 311 can be driven to move towards a direction away from the piston rod 500, and the positioning stop block 311 is deviated from the connecting line of the piston rod 500 and the photographing detection mechanism 400, so that the positioning stop block 311 is prevented from blocking the photographing detection mechanism 400 to acquire an image of the end part of the piston rod 500.

In this embodiment, the front linear driving member 312 includes a driving member body 313 and an L-shaped connecting plate 314. A motor screw assembly is arranged in the driving body, a screw nut is connected to an L-shaped connecting plate 314, and the end part of the connecting plate 314 is connected to a positioning stop block 311. Wherein, the driving body is obliquely arranged relative to the connection line of the photographing detection mechanism 400 and the piston rod 500, so that the driving connecting piece drives the positioning stop block 311 to reciprocate along a straight line oblique to the connection line of the photographing detection mechanism 400 and the piston rod 500, and the sliding path of the positioning stop block 311 is inclined in a direction away from the end face of the piston rod 500, which is provided with the internal angle groove, to a direction deviating from the connection line of the piston rod 500 and the photographing detection mechanism 400. Thereby, the in-process that location dog 311 slided in order to avoid blockking photographing detection mechanism 400, location dog 311 is when deviating from the link of piston rod 500 and photographing detection mechanism 400 to the direction synchronous motion of the tip of keeping away from piston rod 500 to make location dog 311 in time break away from with the tip of piston rod 500, thereby drive piston rod 500 motion and make piston rod 500 position take place the skew because of frictional force effect when avoiding piston rod 500 to slide, influence photographing detection accuracy.

In this embodiment, the side of the positioning stopper 311 facing the piston rod 500 is parallel to the end of the piston rod 500. The positioning stop block 311 is in contact with the piston rod 500 stably when the positioning stop block 311 is abutted to the end part of the piston rod 500, the piston rod 500 is good in positioning effect, and meanwhile, the positioning stop block 311 can be synchronously separated from the piston rod 500 when sliding, so that the probability that the positioning stop block 311 drives the piston rod 500 to deviate is reduced.

Referring to fig. 1, 3 and 4, the rear end positioning assembly 320 includes a rear end linear drive 321 and a side dam 322. The rear linear driving member 321 is fixed to the outer side of one of the two support plates 210, which is remote from the front positioning assembly 310. The driving end of the rear end linear driving member 321 is slidably disposed along the axial direction of the piston rod 500. The side guard 322 is connected to the driving end of the rear linear driving member 321 and faces the stepped portion 510 of the piston rod 500.

In this embodiment, the rear linear driving member 321 is a cylinder, and the driving end of the rear linear driving member 321 is a driving plate 323 connected to the end of the piston rod 500. The side guards 322 are connected to the drive plate 323.

Wherein two side guards 322 are arranged in parallel, and a space for the smaller diameter end of the piston rod 500 to be placed is formed between the two side guards 322. Thus, when the rear end positioning unit 320 positions the piston rod 500, the drive plate 323 abuts against the end of the piston rod 500, and the two side guards 322 abut against the stepped portion 510 of the piston rod 500. The piston rod 500 is driven to axially displace by the rear end linear driving member 321 to move and position the piston rod 500 to a set position.

Referring to fig. 3, the visual inspection apparatus further includes a jacking mechanism 700. The lifting mechanism 700 is disposed between the two support plates 210, and the lifting mechanism 700 can lift the piston rod 500 upward from the limiting gap 220, so as to take down the detected piston rod 500.

Specifically, the jacking mechanism 700 includes a jacking plate 710 and a jacking driving member 720, the jacking driving member 720 is fixed to the lower portion of the supporting plate 210, the driving end of the jacking driving member 720 is disposed towards the upper direction, and the jacking plate 710 is connected to the driving end of the jacking driving member 720. The lifting plate 710 is driven to move upwards by the lifting driving member 720, so that the piston rod 500 is lifted out of the limit notch 220.

In this embodiment, the lifting driving member 720 is a vertically disposed cylinder. The cylinder of the lift driving member 720 is fixed to the support plate 210, and the piston rod 500 of the lift driving member 720 is disposed upward and connected to the lift plate 710. Wherein, an end of the jacking plate 710 away from the jacking driving member 720 (i.e., an upper end of the jacking plate 710) has a lower surface 730 disposed obliquely. Therefore, after the lifting plate 710 ejects the piston rod 500, the piston rod 500 can roll away from the supporting platform 200 along the inclined blanking surface 730 of the lifting plate 710, so as to realize blanking of the piston rod 500.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims

1. The visual detection device for the inner angle groove of the piston rod is characterized by comprising a frame (100), a supporting platform (200), a positioning mechanism (300) and a photographing detection mechanism (400); the supporting platform (200), the positioning mechanism (300) and the photographing detection mechanism (400) are arranged on the frame (100); the supporting platform (200) is used for supporting the piston rod (500); the positioning mechanism (300) comprises a front end positioning assembly (310) and a rear end positioning assembly (320); the front end positioning component (310) is arranged on one side of the supporting platform (200) and is used for positioning one end, provided with an inner angle groove, of the piston rod (500); the rear end positioning assembly (320) is arranged on one side, far away from the front end positioning assembly (310), of the supporting platform (200) and is used for positioning one end, far away from the inner corner groove, of the piston rod (500); the photographing detection mechanism (400) is arranged on one side, far away from the supporting platform (200), of the front end positioning assembly (310) and is used for photographing and detecting the piston rod (500); the front end locating component (310) comprises a locating stop block (311), the locating stop block (311) is located between one end, provided with an inner corner groove, of the piston rod (500) and the photographing detection mechanism (400), and the locating stop block (311) can slide along the frame (100) and leave a connecting line of the photographing detection mechanism (400) and the piston rod (500).

2. The visual inspection device of a piston rod internal angle groove according to claim 1, wherein the front end positioning assembly (310) further comprises a front end linear driving member (312), the front end linear driving member (312) is fixed on the frame (100), the positioning block (311) is connected to the driving end of the front end linear driving member (312), and the front end linear driving member (312) can drive the positioning block (311) to slide reciprocally.

3. A visual inspection apparatus for an internal corner groove of a piston rod according to claim 2, wherein said front linear driving member (312) is disposed obliquely with respect to a line connecting said photographing inspection mechanism (400) and said piston rod (500), and a sliding path of said positioning stopper (311) is inclined in a direction away from an end face of said piston rod (500) where said internal corner groove is provided, in a direction away from a line connecting said piston rod (500) and said photographing inspection mechanism (400).

4. A visual inspection device for an internal angular groove of a piston rod according to claim 3, characterized in that the side of the positioning stop (311) facing the piston rod (500) is parallel to the end of the piston rod (500).

5. A visual inspection device for an internal angular groove of a piston rod according to claim 1, characterized in that the rear end positioning assembly (320) comprises a rear end linear driving member (321), the driving end of the rear end linear driving member (321) sliding along the axial direction of the piston rod (500).

6. The device for visual inspection of a piston rod internal corner groove according to claim 5, wherein a stepped portion (510) is formed at an end of the piston rod (500) away from the internal corner groove, and the rear end positioning assembly (320) further comprises a side shield (322), and the side shield (322) is connected to the driving end of the rear end linear driving member (321) and is opposite to the stepped portion (510) of the piston rod (500).

7. The visual inspection device for the internal angle groove of the piston rod according to claim 1, wherein the supporting platform (200) comprises two parallel supporting plates (210), limiting notches (220) which are matched with the peripheral sides of the piston rod (500) are arranged on the supporting plates (210), and the limiting notches (220) on the two supporting plates (210) are aligned.

8. The visual inspection device of a piston rod internal angle groove according to claim 7, further comprising a lifting mechanism (700), wherein the lifting mechanism (700) is disposed between two support plates (210), and the lifting mechanism (700) can lift the piston rod (500) upwards from the limit notch (220).

9. The visual inspection device for an internal corner groove of a piston rod according to claim 8, wherein the lifting mechanism (700) comprises a lifting plate (710) and a lifting driving member (720), the lifting driving member (720) is fixed at the lower part of the supporting plate (210), the driving end of the lifting driving member (720) is arranged upwards, and the lifting plate (710) is connected to the driving end of the lifting driving member (720); an end surface of the jacking plate (710) at an end far away from the jacking driving member (720) is obliquely arranged.

10. The visual inspection device of a piston rod internal angle groove according to claim 7, further comprising an in-place sensor (600), wherein the in-place sensor (600) is disposed on the support plate (210), and a detection groove (610) aligned with the limit notch (220) is disposed on the in-place sensor (600).