Piston rod outer diameter automatic detection equipment

By designing an automatic piston rod outer diameter detection device, and utilizing a linear guide module and a laser detection probe, the problem of piston rod position deviation affecting the detection results was solved, enabling rapid and accurate detection of the piston rod outer diameter.

CN224593916UActive Publication Date: 2026-08-04JINZHOU WANYOU MECHANICAL PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINZHOU WANYOU MECHANICAL PARTS CO LTD
Filing Date
2025-09-05
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing technologies, laser probe scanning for piston rod outer diameter requires high consistency in piston rod position, which makes the detection results susceptible to piston rod position deviations and makes it difficult to guarantee the accuracy of the detection results.

Method used

Design an automatic piston rod outer diameter detection device, which uses a first linear guide module and a second linear guide module in conjunction with a laser detection probe, and ensures the consistency of piston rod position through a material transfer mechanical claw and a detection position support seat to achieve rapid detection.

Benefits of technology

This technology enables rapid detection of the piston rod's outer diameter, ensuring the consistency of the piston rod's position during each test and improving the accuracy of the test results.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224593916U_ABST
Patent Text Reader

Abstract

This utility model discloses an automatic piston rod outer diameter detection device, comprising: a first linear guide module, which is horizontally arranged along the length of the frame; a material transfer mechanical claw, which is fixedly installed on the slider of the first linear guide module; a detection waiting platform, which is arranged above one end of the first linear guide module; a second linear guide module, which is fixedly arranged above the first linear guide module, and is horizontally arranged and perpendicular to the first linear guide module; a laser detection probe, which is fixedly installed on the slider of the second linear guide module; two detection position supports, which are respectively located on both sides of the first linear guide module and arranged opposite to each other; the position of the detection position support corresponds to the position of the laser detection probe; when the piston rod to be detected is placed on the detection position support, the axis of the piston rod to be detected is parallel to the second linear guide module; and a material feeding and conveying device, which is arranged above the other end of the first linear guide module.
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Description

Technical Field

[0001] This utility model belongs to the field of piston rod detection technology, and specifically relates to an automatic detection device for the outer diameter of piston rods. Background Technology

[0002] Due to the importance of the piston rod in the vibration damper, the outer diameter of the piston rod needs to be inspected during its processing and manufacturing to ensure that the piston rod's precision meets the requirements.

[0003] Laser probe scanning can provide rapid detection results; however, laser probe scanning requires a high degree of consistency in the placement of the piston rod. If the piston rod is misaligned during detection, it will inevitably affect the detection results. Utility Model Content

[0004] The purpose of this invention is to provide an automatic piston rod outer diameter detection device that can quickly detect the piston rod outer diameter and ensure the consistency of the piston rod position during each detection process, thereby ensuring the accuracy of the detection results.

[0005] The technical solution provided by this utility model is as follows:

[0006] An automatic piston rod outer diameter detection device includes:

[0007] frame;

[0008] The first linear guide module is fixedly mounted on the frame and is horizontally arranged along the length of the frame;

[0009] The material handling gripper is fixedly mounted on the slider of the first linear guide module;

[0010] The material waiting platform is positioned above one end of the first linear guide module;

[0011] The second linear guide module is fixedly mounted above the first linear guide module by a bracket. The second linear guide module is horizontally positioned and perpendicular to the first linear guide module.

[0012] A laser detection probe is fixedly mounted on the slider of the second linear guide module;

[0013] Two detection position support seats are located on both sides of the first linear guide module and are arranged opposite to each other, for placing the piston rod to be detected;

[0014] The position of the detection position support corresponds to the position of the laser detection probe; when the piston rod to be detected is placed on the detection position support, the axis of the piston rod to be detected is parallel to the second linear guide module.

[0015] A material feeding and conveying device is located above the other end of the first linear guide module;

[0016] The second linear guide module is located between the detection and waiting platform and the unloading and conveying device.

[0017] Preferably, the automatic piston rod outer diameter detection device further includes:

[0018] A feeding conveyor belt is disposed at one end of the frame and located above the frame;

[0019] The conveying direction of the feeding conveyor belt is the same as that of the second linear guide module; the feeding end of the detection waiting platform is fixedly connected to one side of the feeding conveyor belt.

[0020] A feeding cylinder is fixedly installed on the other side of the feeding conveyor belt and is positioned opposite to the inspection waiting platform. It is used to push the piston rod to be inspected on the feeding conveyor belt into the inspection waiting platform.

[0021] Preferably, a baffle plate is provided at one end of the detection platform opposite to the feeding end, and the baffle plate is arranged parallel to the second linear guide module.

[0022] Preferably, the detection waiting platform has a first notch recessed towards the feeding end at one end where the baffle plate is provided; the gripper of the material transfer mechanical claw grabs the piston rod to be detected on the detection waiting platform from the first notch.

[0023] Preferably, the material transfer mechanical gripper includes: a lifting cylinder and a pneumatic gripper;

[0024] The pneumatic gripper is mounted on the piston rod of the lifting cylinder, and the lifting cylinder is mounted on the slider of the first linear guide module.

[0025] Preferably, the detection position support includes: a support frame and a support block;

[0026] The two support frames are arranged opposite each other and are located on both sides of the first linear guide module; the lower end of the support frame is fixedly installed on the frame.

[0027] The support block is fixedly installed on the upper end of the support frame, and the top of the support block is provided with a groove to define the position of the piston rod to be tested.

[0028] Preferably, the feeding and conveying device includes:

[0029] The unloading conveyor belt is arranged parallel to the loading conveyor belt;

[0030] A feeding platform is provided, which is arranged opposite to the inspection and waiting platform; the feeding end of the feeding platform is connected to one side of the feeding conveyor belt, and the feeding end is arranged towards the inspection position support.

[0031] The bottom of the unloading platform gradually slopes downwards from the loading end to the unloading end.

[0032] Preferably, the bottom surface of the loading end of the unloading platform is provided with a second notch that is recessed toward the unloading end, and the gripper of the material transfer mechanical claw places the piston rod that has been inspected onto the unloading platform at the second notch.

[0033] Preferably, the feeding and conveying device further includes: a qualified product platform, a non-qualified product platform, a qualified product feeding cylinder, and a non-qualified product feeding cylinder;

[0034] The qualified product platform and the unqualified product platform are both located on the other side of the unloading conveyor belt and are spaced apart along the conveying direction of the unloading conveyor belt;

[0035] The qualified product unloading cylinder and the unqualified product unloading cylinder are both located on the same side of the unloading platform, and are respectively opposite to the qualified product platform and the unqualified product platform.

[0036] The beneficial effects of this utility model are:

[0037] The automatic piston rod outer diameter detection device provided by this utility model can quickly detect the outer diameter of the piston rod and ensure the consistency of the piston rod position in each detection process, thus ensuring the accuracy of the detection results. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the automatic piston rod outer diameter detection device described in this utility model.

[0039] Figure 2 This is a front view of the automatic piston rod outer diameter detection device described in this utility model.

[0040] Figure 3 This is a top view of the automatic piston rod outer diameter detection device described in this utility model.

[0041] Figure 4 This is a left view of the automatic piston rod outer diameter detection device described in this utility model. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0043] like Figure 1-4As shown, this utility model provides an automatic piston rod outer diameter detection device, which includes: a frame 110, a first linear guide module 210, a material transfer mechanical claw 220, a detection waiting platform 310, a second linear guide module 410, a laser detection probe 420, a detection position support 430, and a material unloading and conveying device.

[0044] The first linear guide module 210 is fixedly mounted on the top of the frame 110 and is horizontally arranged along the length of the frame 110. The material transfer gripper 220 is fixedly mounted on the slider of the first linear guide module 210. The first linear guide module 210 is an electric module, capable of driving the material transfer gripper 220 to move along the length of the first linear guide module 210.

[0045] The inspection platform 310 is located above one end of the first linear guide module 210 and is used to place the piston rod 610 to be inspected.

[0046] The second linear guide module 410 is fixedly mounted above the first linear guide module 210 via a bracket 411. The second linear guide module 410 is horizontally positioned and perpendicular to the first linear guide module 210. The lower end of the bracket 411 is fixedly connected to the top of the frame 110, and the upper end is provided with a top plate. The second linear guide module 410 is fixedly mounted on the underside of the top plate of the bracket 411.

[0047] The laser detection probe 420 is fixedly mounted on the slider of the second linear guide module 410. The second linear guide module 410 is an electric module that can drive the laser detection probe 420 to move along the length direction of the second linear guide module 410.

[0048] Two detection position supports 430 are fixedly installed on the top of the frame 110, located on both sides of the first linear guide module 210 and arranged opposite each other, for placing the piston rod 610 to be tested. The detection position supports 430 are located below the laser detection probe 430 and correspond to the position of the laser detection probe 430. When the piston rod 610 to be tested is placed on the detection position supports 430, the axis of the piston rod 610 is parallel to the second linear guide module 410.

[0049] The material feeding and conveying device is located above the other end of the first linear guide module 210; that is, the second linear guide module 410 is located between the inspection and waiting platform 310 and the material feeding and conveying device.

[0050] As a preferred embodiment, the automatic piston rod outer diameter detection device further includes: a feeding conveyor belt 320 disposed at one end of the frame 110 and located above the frame 110. The conveying direction of the feeding conveyor belt 320 is the same as the direction of the second linear guide module 410. The feeding end of the detection waiting platform 310 is fixedly supported on one side of the feeding conveyor belt 320. A feeding cylinder 330 is fixedly disposed on the other side of the feeding conveyor belt 320 and is positioned opposite to the detection waiting platform 310, for pushing the piston rod to be detected on the feeding conveyor belt 320 into the detection waiting platform 310.

[0051] A baffle plate 311 is provided at one end of the inspection waiting platform 310 opposite to the feeding end, and the baffle plate 311 is set parallel to the second linear guide module 410. Simultaneously, the housing of the feeding conveyor belt 320 is provided with a discharge port at the corresponding inspection waiting platform 310, and the discharge port is flush with the feeding end of the inspection waiting platform 310. The bottom plate of the inspection waiting platform 310 gradually slopes downwards from the feeding end to the baffle plate 311, allowing the piston rod 610 to be inspected to slide smoothly into the inspection waiting platform 310. The length of the inspection waiting platform 310 (in the axial direction of the piston rod) matches the length of the piston rod to ensure that the piston rod can slide smoothly without a large range of axial movement space. At the same time, due to the limiting effect of the baffle plate 311, the consistency of the piston rod's feeding position is ensured.

[0052] The inspection waiting platform 310 has a first notch 312 recessed towards the feeding end at one end where the baffle plate is provided; the gripper of the material transfer mechanical claw 220 grabs the piston rod 610 to be inspected on the inspection waiting platform 310 from the first notch 312, which facilitates the material transfer mechanical claw 220 to grab and prevents the piston rod 610 to be inspected from moving during the grabbing.

[0053] In this embodiment, the material handling manipulator 220 includes a lifting cylinder 221 and a pneumatic gripper 222. The pneumatic gripper 222 is mounted on the piston rod of the lifting cylinder 221, which is mounted on the slider of the first linear guide module 210. The lifting cylinder 221 can drive the pneumatic gripper 222 to move up and down.

[0054] In this embodiment, the detection position support 430 includes a support frame 431 and a support block 432. The two support frames 431 are arranged opposite each other and are located on opposite sides of the first linear guide module 210. The lower end of the support frame 431 is fixedly mounted on the top of the frame 110. The support block 432 is fixedly mounted on the upper end of the support frame 431, and a groove is provided on the top of the support block 432 to define the position of the piston rod to be detected. Preferably, the groove on the top of the support block 432 is a V-shaped groove.

[0055] In this embodiment, the feeding and conveying device includes: a feeding conveyor belt 510, a feeding platform 520, a qualified product platform 530, a non-qualified product platform 540, a qualified product feeding cylinder 550, and a non-qualified product feeding cylinder 560.

[0056] The unloading conveyor belt 510 and the loading conveyor belt 310 are arranged parallel to each other, and their conveying directions are parallel. The unloading platform 520 is arranged opposite to the inspection waiting platform 310; the unloading end of the unloading platform 520 is connected to one side of the unloading conveyor belt 510 (shell) (the side facing the frame 110), and the loading end is set towards the inspection position support 430. The bottom of the unloading platform 520 gradually slopes downward from the loading end to the unloading end, and the shell of the unloading conveyor belt 510 is provided with an inlet 511 at the unloading end of the unloading platform 520. The height of the inlet 511 is flush with the outlet end of the unloading platform 520 and the upper surface of the unloading conveyor belt 510, so that the piston rod after inspection can smoothly enter the unloading conveyor belt 510.

[0057] The bottom surface of the loading end of the unloading platform 520 is provided with a second notch 521 that is recessed towards the unloading end. The gripper of the material transfer mechanical claw 220 places the piston rod that has been inspected onto the unloading platform 520 at the second notch 521.

[0058] Both the qualified product unloading cylinder 550 and the unqualified product unloading cylinder 560 are located on the same side as the unloading platform 520. The qualified product platform 530 and the unqualified product platform 540 are located on the other side of the unloading conveyor belt 510 and are spaced apart along the conveying direction of the unloading conveyor belt 510. The housing of the unloading conveyor belt 510 is provided with a qualified product unloading port 512 and an unqualified product unloading port 513 at the corresponding qualified product unloading cylinder 550 and unqualified product unloading cylinder 560, respectively. The height of the qualified product unloading port 512 is flush with the inlet end of the qualified product platform 530 and the upper surface of the unqualified product conveyor belt 510, respectively. The height of the unqualified product unloading port 513 is flush with the inlet end of the qualified product platform 540 and the upper surface of the unqualified product conveyor belt 510, respectively, so as to facilitate the smooth entry of the piston rod after inspection into the qualified product platform 530 and the unqualified product platform 540.

[0059] Since the piston rod under test always moves along the linear module during the feeding process, the stability of the feeding process can be guaranteed, and the consistency of the piston rod detection position can be maintained.

[0060] The working process of this utility model is as follows: The piston rod 610 to be tested is placed on the feeding conveyor belt 320, so that the length direction of the piston rod 610 to be tested is set along the conveying direction of the feeding conveyor belt 320; when the piston rod 610 to be tested moves to the position of the corresponding testing waiting platform 310, it is pushed into the testing waiting platform 310 by the feeding cylinder 330; the material transfer mechanical claw 220 moves to the corresponding position and rises to the piston rod 610 to be tested, grabs the piston rod 610 to be tested, and then is driven by the first linear guide module 210 to move along the length direction of the first linear guide module 210 to the testing position support 430 (since there is a gap between the two testing support 430s, the material transfer mechanical claw 220 can pass between the two testing support 430s). At this time, the piston rod 610 to be tested is located above the support block 432, and the material transfer mechanical claw 220 opens to release the piston rod 610 to be tested. The piston rod 610 is placed in the groove of the support block 432 and descends; the second linear guide module 410 drives the laser detection probe 420 to move and scan along the axial direction of the detection piston rod 610 to complete the detection; after the piston rod is detected, the material transfer mechanical claw 220 rises, grabs the detected piston rod, and moves it to the unloading platform 520, places the detected piston rod on the unloading platform 520, and the piston rod rolls onto the unloading conveyor belt 510 for transport; if the piston rod detection result is qualified, the qualified product unloading cylinder 550 is activated when the piston rod moves to the qualified product platform 530, pushing the qualified piston rod into the qualified product platform 530; if the piston rod detection result is unqualified, the unqualified product unloading cylinder 560 is activated when the piston rod moves to the unqualified product platform 540, pushing the unqualified piston rod into the unqualified product platform 540.

[0061] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An automatic piston rod outer diameter detection device, characterized in that, include: frame; The first linear guide module is fixedly mounted on the frame and is horizontally arranged along the length of the frame; The material handling gripper is fixedly mounted on the slider of the first linear guide module; The material waiting platform is positioned above one end of the first linear guide module; The second linear guide module is fixedly mounted above the first linear guide module by a bracket. The second linear guide module is horizontally positioned and perpendicular to the first linear guide module. A laser detection probe is fixedly mounted on the slider of the second linear guide module; Two detection position support seats are located on both sides of the first linear guide module and are arranged opposite to each other, for placing the piston rod to be detected; The position of the detection position support corresponds to the position of the laser detection probe; when the piston rod to be detected is placed on the detection position support, the axis of the piston rod to be detected is parallel to the second linear guide module. A material feeding and conveying device is located above the other end of the first linear guide module; The second linear guide module is located between the detection and waiting platform and the unloading and conveying device.

2. The automatic piston rod outer diameter detection device according to claim 1, characterized in that, Also includes: A feeding conveyor belt is disposed at one end of the frame and located above the frame; The conveying direction of the feeding conveyor belt is the same as that of the second linear guide module; the feeding end of the detection waiting platform is fixedly connected to one side of the feeding conveyor belt. A feeding cylinder is fixedly installed on the other side of the feeding conveyor belt and is positioned opposite to the inspection waiting platform. It is used to push the piston rod to be inspected on the feeding conveyor belt into the inspection waiting platform.

3. The automatic piston rod outer diameter detection device according to claim 2, characterized in that, A baffle plate is provided at one end of the detection and waiting platform opposite to the feeding end, and the baffle plate is arranged parallel to the second linear guide module.

4. The automatic piston rod outer diameter detection device according to claim 3, characterized in that, The inspection waiting platform has a first notch recessed towards the feeding end at one end where a baffle plate is provided; the gripper of the material transfer mechanical claw grabs the piston rod to be inspected on the inspection waiting platform from the first notch.

5. The automatic piston rod outer diameter detection device according to claim 4, characterized in that, The material handling mechanical gripper includes: a lifting cylinder and a pneumatic gripper; The pneumatic gripper is mounted on the piston rod of the lifting cylinder, and the lifting cylinder is mounted on the slider of the first linear guide module.

6. The automatic piston rod outer diameter detection device according to claim 4 or 5, characterized in that, The detection position support includes: a support frame and a support block; The two support frames are arranged opposite each other and are located on both sides of the first linear guide module; the lower end of the support frame is fixedly installed on the frame. The support block is fixedly installed on the upper end of the support frame, and the top of the support block is provided with a groove to define the position of the piston rod to be tested.

7. The automatic piston rod outer diameter detection device according to claim 6, characterized in that, The material feeding and conveying device includes: The unloading conveyor belt is arranged parallel to the loading conveyor belt; A feeding platform is provided, which is arranged opposite to the inspection and waiting platform; the feeding end of the feeding platform is connected to one side of the feeding conveyor belt, and the feeding end is arranged towards the inspection position support. The bottom of the unloading platform gradually slopes downwards from the loading end to the unloading end.

8. The automatic piston rod outer diameter detection device according to claim 7, characterized in that, The bottom surface of the loading end of the unloading platform is provided with a second notch that is recessed toward the unloading end. The gripper of the material transfer mechanical claw places the piston rod that has been inspected onto the unloading platform at the second notch.

9. The automatic piston rod outer diameter detection device according to claim 8, characterized in that, The feeding and conveying device also includes: a qualified product platform, a non-qualified product platform, a qualified product feeding cylinder, and a non-qualified product feeding cylinder; The qualified product platform and the unqualified product platform are both located on the other side of the unloading conveyor belt and are spaced apart along the conveying direction of the unloading conveyor belt; The qualified product unloading cylinder and the unqualified product unloading cylinder are both located on the same side of the unloading platform, and are respectively opposite to the qualified product platform and the unqualified product platform.