Double-station axial hole detection device

Abstract

The utility model belongs to the field of automobile part detection, and particularly relates to a double-station axial hole detection device, which comprises a detection platform, two valve core bearing seats are arranged on the detection platform, valve core bearing grooves are arranged on the valve core bearing seats, detection assemblies are correspondingly arranged in the axial directions of the two valve core bearing grooves which are arranged in parallel, and the detection assemblies are arranged on the detection platform. And one valve element bearing seat horizontally moves between a material receiving position and a detection position through a linear driver arranged on the detection platform, and corresponds to the detection assembly at the detection position. As the detection modes of other detection stations on the assembly line need to be taken into consideration, only the valve elements can be coaxially placed, one valve element bearing seat is arranged on the linear driver, and the linear air cylinder is utilized to translate the valve element bearing seat to one side, so that the two valve element bearing seats can be staggered from each other and can correspond to the matched detection assemblies after translating, and the detection efficiency is improved. Therefore, the problem that the installation space of the detection assembly is insufficient due to a workpiece placing mode is solved.

Description

Technical Field

[0001] The utility model belongs to the field of automobile parts detection, and particularly relates to a double-station axial hole detection device. Background Technique

[0002] The go-no-go gauge is a kind of gauge. As a measurement standard, it is used for mass inspection of products. In actual production, it is very laborious to measure a large number of products one by one with measuring tools (such as graduated measuring tools like vernier calipers and micrometers). Qualified products have a measurement range, and all within this range are qualified. Therefore, people use go gauges and no-go gauges for measurement.

[0003] ‌Go gauge‌: Designed to detect according to the lower limit of the allowable deviation of the hole diameter to ensure that the size of the hole meets the requirements. The go gauge can easily rotate at any position of the thread. If the go gauge passes smoothly but the pitch diameter of the thread is too large, the product will be regarded as unqualified.

[0004] ‌No-go gauge‌: Responsible for checking whether the hole diameter exceeds the upper limit of the allowable deviation. The no-go gauge may only be able to rotate one to two or three turns, and the thread head should not extend beyond the end face of the ring gauge. If the no-go gauge passes smoothly but the pitch diameter of the thread is too small, the product will also be judged as unqualified.

[0005] Usually, during the detection process of parts, there is also an external shape detection of the parts. For example, a ccd camera or laser detection scans from one end to the other end on one side of the part. Therefore, in multi-station equipment, in order to facilitate the external shape detection, multiple workpieces such as valve cores are arranged coaxially and linearly on the bearing seat. When detecting the axial holes of the valve core, the axial space is not sufficient to install go-no-go gauges corresponding to all valve cores, and it is impossible to detect all valve cores together, which will lose the meaning of setting multiple stations on the assembly line equipment and seriously reduce the detection efficiency that should be possessed. Content of the Utility Model

[0006] The purpose of the utility model is to solve the above problems and provide a double-station axial hole detection device that can solve the above technical problems.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The double-station axial hole detection device includes a detection platform, two valve core bearing seats are arranged on the detection platform, a valve core bearing groove is arranged on the valve core bearing seat, detection components are axially corresponding to two parallelly arranged valve core bearing grooves, and one of the valve core bearing seats moves horizontally between the feeding position and the detection position through a linear driver arranged on the detection platform and corresponds to the detection component at the detection position.

[0009] In the described double-station axial hole detection device, the valve core bearing groove is a V-shaped groove that penetrates both ends of the valve core bearing seat. An arc-shaped groove is opened downward at the bottom angle of the V-shaped groove, and positioning plates are provided at both ends of the valve core bearing groove.

[0010] In the described double-station axial hole detection device, the positioning plate is provided with an arc-shaped valve core supporting groove along the direction of the valve core bearing groove, and valve core positioning abutting surfaces are provided on one side of the two positioning plates facing each other.

[0011] In the described double-station axial hole detection device, bearing seat brackets are provided at the lower ends of the two valve core bearing seats at the same horizontal height. The bearing seat brackets include a fixed bracket and a movable bracket. The fixed bracket is connected to the detection platform, and the movable bracket is arranged on the linear drive.

[0012] In the described double-station axial hole detection device, the linear drive includes a movable part and a fixed part that are slidably connected. The fixed part is arranged on the detection platform, and the movable part is connected to the movable bracket.

[0013] In the described double-station axial hole detection device, a stop block is provided on one side of the fixed part, and a movable block is provided on one side of the movable part. When the valve core bearing seat is in the detection position, the movable block abuts against the stop block.

[0014] In the described double-station axial hole detection device, the detection assembly includes a detection linear cylinder and an axial hole go-no-go gauge. The detection linear cylinder is arranged on the detection platform, and the axial hole go-no-go gauge is arranged on the upper part of the detection linear cylinder and translates in the axial direction of the valve core bearing groove.

[0015] In the described double-station axial hole detection device, a go-no-go gauge buffer device is provided on the detection linear cylinder, and the axial hole go-no-go gauge is arranged on the go-no-go gauge buffer device to enable the axial hole go-no-go gauge to buffer and move along the axial direction of the valve core bearing groove.

[0016] In the described double-station axial hole detection device, the go-no-go gauge buffer device includes a mutually cooperating guide rail and a sliding table. The guide rail is fixed on the detection linear cylinder, the axial hole go-no-go gauge is arranged on the sliding table, and a buffer plate is also provided on the detection linear cylinder. A buffer spring is arranged between the buffer plate and the sliding table.

[0017] In the described double-station axial hole detection device, a displacement sensor is arranged on the sliding table, and the detection end of the displacement sensor is associated with the detection linear cylinder.

[0018] The advantages of the present utility model are:

[0019] Make full use of the space of the detection platform and set up two workstations for axial hole detection on it to improve the detection efficiency. Since the detection methods of other detection workstations on the assembly line need to be considered and the valve cores can only be placed coaxially, one of the valve core bearing seats is arranged on the linear drive, and the linear cylinder is used to translate the valve core bearing seat to one side, so that the two valve core bearing seats can be staggered from each other, and after translation, they can correspond to the matching detection components, so as to eliminate the problem of insufficient installation space of the detection components caused by the workpiece placement method. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the valve core bearing seat of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the detection component of the present invention.

[0023] In the figure, the detection platform 1, the valve core bearing seat 2, the valve core bearing groove 21, the linear drive 22, the positioning plate 23, the fixed bracket 24, the movable bracket 25, the detection component 3, the detection linear cylinder 31, the axial hole through gauge 32, the displacement sensor 33, the through gauge buffer device 4, the buffer plate 41, and the buffer spring 42. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following are specific embodiments of the utility model and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0025] Embodiment 1

[0026] As Figures 1 - 3 shown, a double-station axial hole detection device includes a detection platform 1, characterized in that two valve core bearing seats 2 are arranged on the detection platform 1, a valve core bearing groove 21 is arranged on the valve core bearing seat 2, and detection components 3 are axially arranged corresponding to two parallelly arranged valve core bearing grooves 21. One of the valve core bearing seats 2 is horizontally moved between the feeding position and the detection position through a linear drive 22 arranged on the detection platform 1 and corresponds to the detection component 3 at the detection position.

[0027] That is, since the detection methods of other detection workstations on the assembly line need to be considered and the valve cores can only be placed coaxially, one of the valve core bearing seats 2 is arranged on the linear drive 21, and the linear cylinder is used to translate the valve core bearing seat 2 to one side, so that the two valve core bearing seats 2 can be staggered from each other, and after translation, they can correspond to the matching detection component 4, so as to eliminate the problem of insufficient installation space of the detection component 4 caused by the workpiece placement method.

[0028] In this embodiment, the valve core bearing groove 21 is a V-shaped groove that penetrates through both ends of the valve core bearing seat 2. An arc-shaped groove is opened downward at the bottom included angle of the V-shaped groove, and positioning plates 23 are provided at both ends of the valve core bearing groove 21.

[0029] The cylindrical valve core can be more stable in the V-shaped groove. Different from the arc-shaped groove where there may be shaking due to improper arc matching, the V-shaped groove can adapt to various cylindrical workpieces with different diameters. At the same time, by continuously opening an arc-shaped groove at the bottom of the V shape, impurities or oil dropped by the manipulator during the transfer of the valve core can fall from the V-shaped groove into the arc-shaped groove, avoiding the problem of the valve core being placed incorrectly due to foreign objects.

[0030] The positioning plates 23 at both ends of the V-shaped groove are used to limit the axial position of the valve core in the valve core bearing groove 21, facilitating the setting of the depth at which the detection component 3 penetrates into the axial hole.

[0031] Preferably, the positioning plate 23 is provided with an arc-shaped valve core supporting groove along the direction of the valve core bearing groove 21, and valve core positioning abutting surfaces are provided on one side of the two positioning plates 23 facing each other.

[0032] The valve core is mainly composed of a relatively long cylinder. A conical end is opened at one end of the main body, a circular groove is opened at the other end surface, and a smaller-diameter axial hole is continuously opened at the center of the groove bottom. Three large cylinders concentric with the main cylinder are distributed on the arc surface of the valve core, and a radial hole is opened on the middle cylinder to communicate with the small axial hole.

[0033] The two positioning plates 23 are clamped on the two outer large cylinders, and the valve core supporting groove holds up the small cylinder, enabling the valve core bearing groove 21 to form a groove similar to the shape of the valve core, so that the valve core can be completely positioned therein, making the detection structure more accurate.

[0034] In this embodiment, at the lower ends of the two valve core bearing seats 2 at the same horizontal height, there are bearing seat brackets, which include a fixed bracket 24 and a movable bracket 25. The fixed bracket 24 is connected to the detection platform 1, and the movable bracket 25 is arranged on the linear drive 22.

[0035] Since the manipulator for transfer sucks two valve cores simultaneously, the suction cups need to fit well with the valve cores. Therefore, the two valve core bearing seats 2 must be set at the same height.

[0036] One of the valve core bearing seats 2 is installed on the linear drive 22 through the movable bracket 25. As the linear drive 22 pushes, the two valve core bearing seats 2 are staggered from each other. Usually, the linear drive 22 is vertically arranged with respect to the placed valve cores to ensure that the valve cores on the two valve core bearing seats 2 can still be kept parallel after movement, which will make the setting of the corresponding detection component 3 more convenient.

[0037] Preferably, the linear actuator 22 includes a movable part and a fixed part that are slidably connected. The fixed part is disposed on the detection platform 1, and the movable part is connected to the movable bracket 25.

[0038] A stop block is provided on one side of the fixed part, and a movable block is provided on one side of the movable part. When the valve element carrier 2 is in the detection position, the movable block abuts against the stop block.

[0039] When the movable part and the fixed part move relative to each other, the movable block and the stop block at both ends will abut against each other. At this time, the valve element in the valve element carrier 2 is just vertically translated from the receiving position interacting with the manipulator to the detection position, so that the axial hole of the valve element and the probe of the detection assembly 3 are on the same axis.

[0040] Among them, the linear actuator 22 can be a cylinder, an oil cylinder or a linear motor.

[0041] In this embodiment, the detection assembly 3 includes a detection linear cylinder 31 and an axial hole go-no-go gauge 32. The detection linear cylinder 31 is disposed on the detection platform 1, and the axial hole go-no-go gauge 32 is disposed on the upper part of the detection linear cylinder 31 and translates in the axial direction of the valve element carrier groove 21.

[0042] The detection linear cylinder 31 is used to extend the front probe into the axial hole of the valve element after the valve element is in place. Therefore, the detection linear cylinder 31 must be disposed along the axis of the valve element.

[0043] Preferably, a go-no-go gauge buffer device 4 is provided on the detection linear cylinder 31, and the axial hole go-no-go gauge 32 is disposed on the go-no-go gauge buffer device 4, so that the axial hole go-no-go gauge 32 moves in a buffered manner along the axis of the valve element carrier groove 21.

[0044] The advancing distance of the detection linear cylinder 31 conforms to the depth of the axial hole of the valve element. However, when the axial hole is not machined in place and does not meet the dimensions, the axial hole go-no-go gauge 32 cannot continue to extend, and the detection linear cylinder 31 will continuously apply force to push the axial hole go-no-go gauge 32. Therefore, the go-no-go gauge buffer device 4 offsets the advancing stroke of the detection linear cylinder 31, thereby protecting the axial hole go-no-go gauge 32 from being damaged.

[0045] Preferably, the go-no-go gauge buffer device 4 includes a mutually matched guide rail and a sliding table. The guide rail is fixed on the detection linear cylinder 31, the axial hole go-no-go gauge 32 is disposed on the sliding table, and a buffer plate 41 is further provided on the detection linear cylinder 31. A buffer spring 42 is disposed between the buffer plate 41 and the sliding table.

[0046] There are two guide posts provided on the buffer plate 41. The guide posts are slidably inserted into the side surface of the sliding table, and together with the guide rails at the lower end, they ensure the stability of the axial hole go-no-go gauge 32 during the buffer movement. The buffer spring 42 is sleeved outside the guide posts to offset the displacement of the detection linear cylinder 31.

[0047] Preferably, a displacement sensor 33 is provided on the sliding table, and the detection end of the displacement sensor 33 is associated with the detection linear cylinder 31.

[0048] The displacement sensor 33 is installed on the sliding table. When the end of the axial hole go-no-go gauge 32 extends into the axial hole without obstruction, the value of the displacement sensor 33 does not change. However, after the end of the axial hole go-no-go gauge 32 encounters an obstruction during insertion, the relative distance between the sliding table and the movable part of the detection linear cylinder 31 changes, and the value of the displacement sensor 33 also changes simultaneously. The value obtained is the position where the inner wall machining of the valve core axial hole does not meet the standard.

[0049] Embodiment 2

[0050] Apply the technical solution in Embodiment 1 to equipment with more workstations. For example, there are three valve core bearing seats 2 arranged side by side. Keep one of the valve core bearing seats 2 fixed on the tabletop, use a linear cylinder to translate the middle valve core bearing seat 2 to one side, and the other valve core bearing seat 2 translates relative to the middle one. In this way, after adjustment, all three valve core bearing seats 2 can be paired with the detection assembly 3, thereby improving the operation efficiency of the production line again.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. Double-station axial hole detection device, including a detection platform (1), characterized in that, There are two valve core bearing seats (2) arranged on the detection platform (1). A valve core bearing groove (21) is arranged on the valve core bearing seat (2). A detection component (3) is axially correspondingly arranged for the two parallelly arranged valve core bearing grooves (21). One of the valve core bearing seats (2) is horizontally moved between the feeding position and the detection position by a linear driver (22) arranged on the detection platform (1), and corresponds to the detection component (3) at the detection position.

2. The double-station axial hole detection device according to claim 1, characterized in that, The valve core bearing groove (21) is a V-shaped groove penetrating through both ends of the valve core bearing seat (2). An arc-shaped groove is opened downward at the bottom angle of the V-shaped groove. Positioning plates (23) are arranged at both ends of the valve core bearing groove (21).

3. A double-station axial hole detection device according to claim 2, characterized in that, The positioning plate (23) is provided with an arc-shaped valve core supporting groove along the direction of the valve core bearing groove (21). Valve core positioning abutting surfaces are arranged on one side of the two positioning plates (23) facing each other.

4. A double-station axial hole detection device according to claim 1, characterized in that, Bearing seat brackets are arranged at the lower ends of the two valve core bearing seats (2) at the same horizontal height. The bearing seat brackets include a fixed bracket (24) and a movable bracket (25). The fixed bracket (24) is connected to the detection platform (1), and the movable bracket (25) is arranged on the linear driver (22).

5. A double-station axial hole detection device according to claim 4, characterized in that, The linear driver (22) includes a movable part and a fixed part connected in a sliding manner. The fixed part is arranged on the detection platform (1), and the movable part is connected to the movable bracket (25).

6. The double-station axial hole detection device according to claim 5, characterized in that, A stop block is arranged on one side of the fixed part, and a movable block is arranged on one side of the movable part. When the valve core bearing seat (2) is at the detection position, the movable block abuts against the stop block.

7. A double-station axial hole detection device according to claim 1, characterized in that, The detection component (3) includes a detection linear cylinder (31) and an axial hole go-no-go gauge (32). The detection linear cylinder (31) is arranged on the detection platform (1). The axial hole go-no-go gauge (32) is arranged on the upper part of the detection linear cylinder (31) and translates in the axial direction of the valve core bearing groove (21).

8. A double-station axial hole detection device according to claim 7, characterized in that, A go-no-go gauge buffer device (4) is arranged on the detection linear cylinder (31). The axial hole go-no-go gauge (32) is arranged on the go-no-go gauge buffer device (4) to enable the axial hole go-no-go gauge (32) to buffer and move along the axial direction of the valve core bearing groove (21).

9. A double-station axial hole detection device according to claim 8, characterized in that, The go-no-go gauge buffer device (4) includes a matched guide rail and a slide table. The guide rail is fixed on the detection linear cylinder (31). The axial hole go-no-go gauge (32) is arranged on the slide table. A buffer plate (41) is also arranged on the detection linear cylinder (31). A buffer spring (42) is arranged between the buffer plate (41) and the slide table.

10. A double-station axial hole detection device according to claim 9, characterized in that, A displacement sensor (33) is arranged on the slide table. The detection end of the displacement sensor (33) is associated with the detection linear cylinder (31).

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