Manual push rod full-automatic detecting and sorting equipment

Abstract

The invention relates to the technical field of manual push rod detection, and discloses manual push rod full-automatic detection and sorting equipment, which comprises a detection table, a driving mechanism and a detection mechanism, and is characterized in that the detection table is provided with a sorting seat for supporting a push rod to be detected; the driving mechanism comprises a telescopic piece installed on the detection table and a driving piece connected with the output end of the telescopic piece. The detection mechanism comprises a load block arranged at the output end of the push rod to be detected, a transverse guide rod connected with the side face of the load block, a positioning cylinder arranged on the transverse guide rod in a sleeving mode, a transverse synchronous rod linked with an input rod of the push rod to be detected and a visual sensor. The visual sensor is used for collecting the moving track of the positioning cylinder. The displacement track of the positioning cylinder is recorded through the visual sensor, and whether the corresponding push rod to be detected is qualified or not can be visually known through the displacement track, so that automatic detection of the manual push rod is realized, and the detection efficiency and the detection accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of manual push rod detection, and particularly relates to a fully automatic detection and sorting device for manual push rods. Background Art

[0002] Manual push rods are usually used in mechanical systems to achieve linear motion through manual operation. For example, in adjusting seats, industrial equipment, etc., by rotating the input rod, the output end at the front end of the push rod extends to achieve the purpose of pushing the component to move. In order to ensure the performance of the produced push rods, it is necessary to detect the produced push rods to meet the set accuracy requirements.

[0003] In the prior art, the push rod comprehensive test platform disclosed in Chinese Patent Publication No. CN209841363U includes an installation platform, an electric push rod, a test mechanism, and a pressurizing mechanism. The two ends of the electric push rod are respectively connected to the test mechanism and the pressurizing mechanism. The pressurizing mechanism applies a load to prompt the movement of the electric push rod. The force generated by the electric push rod is transmitted to the controller through a push-pull force sensor. The display of the controller shows the push-pull force parameters. At the same time, the grating ruler cooperates with the timer on the controller to test the stroke of the electric push rod, calculate and display the stroke and running speed of the electric push rod on the display screen of the controller. In the prior art, when detecting the performance of an electric push rod, when detecting a manual push rod, it is usually to drive the rotation of the input rod of the manual push rod through a motor, make the output end of the manual push rod extend, and detect the stroke and running speed of the output end. However, in actual detection, it cannot effectively detect the rotation state of the input rod of the manual push rod. Since there is a linear relationship between the rotation angle of the input rod of the manual push rod and the stroke of the output end, when the input rod of the manual push rod gets stuck during rotation, it will also affect the smoothness of the extension of its output end, thereby affecting the accuracy of the manual push rod.

[0004] Therefore, it is necessary to provide a fully automatic detection and sorting device for manual push rods to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a fully automatic detection and sorting device for manual push rods to solve the above problems in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A fully automatic detection and sorting device for manual push rods, comprising: A detection table, on which a sorting seat for supporting the push rod to be tested is provided; A driving mechanism, the driving mechanism includes a telescopic member installed on the detection table, a driving member connected to the output end of the telescopic member, and the output end of the driving member is matched with the input rod of the push rod to be tested for driving the rotation of the input rod of the push rod to be tested through the driving member; A detection mechanism, the detection mechanism includes a load block arranged at the output end of the push rod to be measured, a lateral guide rod connected to the side of the load block, a positioning cylinder sleeved on the lateral guide rod, a lateral synchronous rod linked with the input rod of the push rod to be measured, and a vision sensor. When the input rod of the push rod to be measured rotates, it synchronously drives the lateral synchronous rod to move horizontally. The end of the lateral synchronous rod is connected with a lateral seat. The bottom of the positioning cylinder is horizontally slidably connected with the lateral seat through a chute. The vision sensor is used to collect the moving trajectory of the positioning cylinder.

[0007] As a further solution of the present invention, a gear is installed at the output end of the driving member. The gear meshes with a synchronous rack arranged parallel to the lateral guide rod through teeth. The upper end of the lateral synchronous rod is inserted into the synchronous rack through a vertical insertion rod.

[0008] As a further solution of the present invention, the sorting seat is rotationally connected to the detection table. Sorting channels are arranged on both sides of the detection table where the sorting seat is located for sorting the push rods after detection.

[0009] As a further solution of the present invention, an intelligent detector is arranged on the detection table. The intelligent detector is provided with a detection module, a processing module, a vision module, and a reminder module. The detection module is respectively signal-connected to the processing module, the driving member, and the telescopic member. The processing module is respectively signal-connected to the vision module and the reminder module. The vision module is signal-connected to the vision sensor.

[0010] As a further solution of the present invention, a trajectory rod is vertically installed at the top of the positioning cylinder. The vision sensor is correspondingly arranged with the trajectory rod. The vision sensor is used to collect the moving trajectory of the trajectory rod on the positioning cylinder.

[0011] As a further solution of the present invention, a load rod is fixed on the side of the load block away from the sorting seat along the output end direction of the push rod to be measured. A load airbag ring is sleeved on the load rod and is installed with the detection table. The load airbag ring is externally connected to an air pump. The detection module is signal-connected to the air pump.

[0012] As a further solution of the present invention, a longitudinal chute is opened on the lateral seat. The bottom of the positioning cylinder is slidably connected with the longitudinal chute through a longitudinal slider.

[0013] As a further solution of the present invention, a self-checking mechanism is also arranged on the detection table. The self-checking mechanism includes a self-checking cylinder, a pressure sensor one, and a pressure sensor two located on the detection table. The output end of the self-checking cylinder abuts against the load block through a top block. The pressure sensor one is installed between the top block and the load block. The pressure sensor two is installed between the positioning cylinder and the longitudinal slider.

[0014] As a further solution of the present invention, a self-check module is also provided on the intelligent detector, and the self-check module is respectively connected to the reminder module, the first pressure sensor, the self-check cylinder and the second pressure sensor in a signal connection.

[0015] As a further solution of the present invention, the transverse seat is horizontally slidably connected to the detection table through a plurality of guide rods.

[0016] During the actual operation of the manual push rod in the present invention, there is a linear correlation between the rotation angle of the input rod of the manual push rod and the stroke of the output end. The displacement trajectory of the positioning cylinder is recorded by the vision sensor, and the displacement trajectory of the positioning cylinder during the detection process is marked on the coordinate system. When the displacement trajectory fluctuates, it is determined that there is a problem with the assembly of the input rod or the output end of the push rod to be tested, and the unqualified products of the push rod to be tested are sorted. The displacement trajectory of the positioning cylinder is recorded by the vision sensor, and it can be intuitively understood whether the corresponding push rod to be tested is qualified through the displacement trajectory, so as to realize the automatic detection of the manual push rod and improve the detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 is a schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 is a schematic diagram of the positions of the synchronous rack and the gear sleeve in the present invention; Figure 4 is a schematic diagram of the structure of the positioning cylinder after displacement in the present invention; Figure 5 is a schematic diagram of the coordinate of the displacement trajectory of the positioning cylinder during detection in the present invention; Figure 6 is a block diagram of the control principle of the intelligent detector in the present invention; Figure 7 is a schematic diagram of the heat generation structure of the self-check mechanism in the present invention; Figure 8 is a schematic diagram of the positions of the first pressure sensor and the second pressure sensor in the present invention.

[0019] In the figure: 1, inspection table; 2, sorting seat; 3, driving member; 4, telescopic member; 5, sorting channel; 6, intelligent detector; 7, load block; 8, vision sensor; 9, horizontal synchronization rod; 10, horizontal guide rod; 11, positioning cylinder; 12, trajectory rod; 13, horizontal seat; 14, longitudinal sliding groove; 15, longitudinal slider; 16, load rod; 17, load airbag ring; 18, synchronous rack; 19, gear; 20, pressure sensor I; 21, self-checking cylinder; 22, pressure sensor II. Detailed implementation manners

[0020] Embodiment 1 As Figures 1-4 shown, a manual push rod full-automatic inspection and sorting device includes an inspection table 1, a driving mechanism and an inspection mechanism. A sorting seat 2 for supporting the push rod to be tested is arranged on the inspection table 1. By placing the push rod to be tested on the sorting seat 2, it is limited, which is convenient for testing the push rod to be tested; the driving mechanism includes a telescopic member 4 installed on the inspection table 1 and a driving member 3 connected to the output end of the telescopic member 4. The output end of the driving member 3 is matched with the input rod of the push rod to be tested, so as to drive the input rod of the push rod to be tested to rotate through the driving member 3, and the telescopic member 4 is used to control the up and down movement of the driving member 3. After placing the push rod to be tested on the sorting seat 2, the telescopic member 4 drives the driving member 3 to move downwards. The output end of the driving member 3 is docked with the input rod of the push rod to be tested. At this time, the driving member 3 works to drive the input rod of the push rod to be tested to rotate, so as to control the elongation of the push rod to be tested.

[0021] It is worth mentioning that, please refer to 2- Figure 4 , the inspection mechanism includes a load block 7 arranged at the output end of the push rod to be tested, a horizontal guide rod 10 connected to the side of the load block 7, a positioning cylinder 11 sleeved on the horizontal guide rod 10, a horizontal synchronization rod 9 linked to the input rod of the push rod to be tested, and a vision sensor 8. When the input rod of the push rod to be tested rotates, it synchronously drives the horizontal synchronization rod 9 to move horizontally. A horizontal seat 13 is connected to the end of the horizontal synchronization rod 9. When driving the input rod of the push rod to be tested to rotate, the horizontal synchronization rod 9 will synchronously move horizontally with the rotation of the input rod, thereby driving the horizontal seat 13 to move horizontally. The bottom of the positioning cylinder 11 is horizontally slidably connected to the horizontal seat 13 through a sliding groove. When the horizontal seat 13 moves horizontally, it synchronously drives the positioning cylinder 11 to displace horizontally. When driving the input rod of the push rod to be tested to rotate, at this time, the output end of the push rod to be tested will push the load block 7 to move, and the load block 7 will drive the horizontal guide rod 10 to move longitudinally, thereby driving the positioning cylinder 11 to displace longitudinally. Therefore, during the operation of the push rod to be tested, the positioning cylinder 11 will present a displacement trajectory. The vision sensor 8 is used to collect the movement trajectory of the positioning cylinder 11. By collecting the movement trajectory of the positioning cylinder 11 through the vision sensor 8, the vision sensor 8 is preferably an industrial camera.

[0022] During the actual operation of the manual push rod, there is a linear correlation between the rotation angle of the input rod of the manual push rod and the stroke of the output end. The rotation angle of the input rod of the push rod to be tested is converted into a lateral displacement through the lateral synchronization rod 9 and acts on the positioning cylinder 11. At this time, with the positioning cylinder 11 as the coordinate origin and the lateral orientation of the positioning cylinder 11 as the X-axis; at the same time, the push rod to be tested pushes the load block 7 to move longitudinally and synchronously drives the positioning cylinder 11 to move longitudinally. With the longitudinal orientation of the positioning cylinder 11 as the Y-axis, as Figure 5 shown, the displacement trajectory of the positioning cylinder 11 is recorded by the vision sensor 8. At this time, the displacement trajectory of the positioning cylinder 11 during the detection process can be marked on the coordinate system. Under normal circumstances, there is a linear correlation between the rotation angle of the input rod of the push rod to be tested and the stroke of the output end, and the displacement trajectory is a smooth straight line. When the displacement trajectory fluctuates, it indicates that the two are non-linearly correlated. At this time, there is a problem with the assembly of the input rod or the output end of the push rod to be tested. The unqualified push rods to be tested are sorted. Therefore, when detecting the push rod to be tested, by setting the positioning cylinder 11, the linear correlation degree between the rotation angle of the input rod of the manual push rod and the stroke of the output end can be reflected, and the displacement trajectory of the positioning cylinder 11 is recorded by the vision sensor 8. Through the displacement trajectory, it can be intuitively understood whether the corresponding push rod to be tested is qualified, so as to realize the automatic detection of the manual push rod and improve the detection efficiency and accuracy.

[0023] In this embodiment, as Figure 3 shown, a gear 19 is installed at the output end of the driving member 3. The gear 19 meshes with a synchronous rack 18 arranged parallel to the lateral guide rod 10 through teeth. The upper end of the lateral synchronization rod 9 is inserted into the synchronous rack 18 through a vertical insertion rod. By driving the gear 19 to rotate by the driving member 3, the synchronous rack 18 is driven to move laterally, and the lateral synchronization rod 9 is synchronously driven to move laterally. And when the gear 19 and the synchronous rack 18 move vertically with the driving member 3, through the connection between the lateral synchronization rod 9 and the synchronous rack 18, the lateral synchronization rod 9 can still move laterally with the synchronous rack 18 better, as Figure 2 shown, the sorting seat 2 is rotatably connected to the detection table 1. Sorting channels 5 are arranged on both sides of the detection table 1 where the detection table 1 is located for sorting the tested push rods. After the push rod to be tested is detected, the sorting seat 2 can be controlled to deflect to both sides to control the sorting of qualified push rods and unqualified push rods, which is convenient for the operator to distinguish and process unqualified products.

[0024] In this embodiment, an intelligent detector 6 is provided on the detection table 1. A detection module, a processing module, a vision module, and a reminder module are provided on the intelligent detector 6. The detection module is respectively connected to the processing module, the driving member 3, and the telescopic member 4 by signals. The processing module is respectively connected to the vision module and the reminder module by signals. The vision module is connected to the vision sensor 8 by signals. When detecting a push rod to be tested, it is placed on the sorting seat 2. The detection module controls the telescopic member 4 to work. The telescopic member 4 drives the driving member 3 to move down to a preset position. At this time, the driving member 3 is docked with the input rod of the push rod to be tested. The driving member 3 starts to drive the input rod to rotate. The detection module sends a detection signal to the processing module. The processing module controls the vision module to work. The vision module controls the vision sensor 8 to start and receives the visual data collected by the vision sensor 8. The output end of the push rod to be tested pushes the load block 7 to move longitudinally. During this process, the vision sensor 8 feeds back the displacement trajectory of the positioning cylinder 11 collected to the vision module. The vision module plots the received visual data into a coordinate trajectory diagram as shown in Figure 5 and feeds it back to the processing module. The processing module compares the displacement trajectory diagram fed back by the vision module with a preset qualified displacement trajectory diagram to determine whether the two coincide, and analyzes whether there are fluctuations in the displacement trajectory diagram. By judging that the two do not coincide and there are fluctuations, it is judged that the corresponding push rod to be tested is unqualified. When the processing module judges that the corresponding push rod to be tested is unqualified, the processing module will send a reminder signal to the reminder module. The reminder module issues corresponding sound and light reminders to remind that the corresponding push rod is unqualified, so as to automatically and intelligently judge the qualification of the push rod to be tested, thereby improving the accuracy of push rod detection.

[0025] Preferably, as shown in Figure 4 , a trajectory rod 12 is vertically installed on the top of the positioning cylinder 11. The vision sensor 8 is correspondingly arranged with the trajectory rod 12. The vision sensor 8 is used to collect the movement trajectory of the trajectory rod 12 on the positioning cylinder 11. By setting the trajectory rod 12 and collecting the displacement data of the trajectory rod 12, it is convenient for the vision sensor 8 to better collect the displacement trajectory of the positioning cylinder 11 and accurately judge the quality of the push rod to be tested. The transverse seat 13 is horizontally slidably connected to the detection table 1 through a plurality of guide rods, which can improve the stability of the transverse seat 13 moving in the horizontal direction.

[0026] Embodiment 2 On the basis of Embodiment 1, as shown in Figure 2 and Figures 4-6As shown in the figure, on one side of the load block 7 away from the sorting seat 2, a load rod 16 is fixed along the direction of the output end of the push rod to be tested. A load airbag ring 17 is sleeved on the load rod 16 and is installed with the detection table 1. The load airbag ring 17 is externally connected to an air pump, and the detection module is signal-connected to the air pump. When detecting the push rod, it is necessary to judge whether it can operate normally under the load state. Therefore, when detecting the load of the push rod to be tested, the detection module controls the air pump to work. The air pump fills the load airbag ring 17 with a preset air pressure. After the load airbag ring 17 expands, it squeezes the outer circle of the load rod 16, thereby increasing the friction force with the load rod 16, increasing the resistance during the movement of the load block 7, and facilitating the flexible adjustment of the load condition of the output end of the push rod to be tested by controlling the air pressure in the load airbag ring 17, improving the convenience of detection.

[0027] Embodiment Three Different from Embodiment Two, during the detection of the push rod to be tested, the displacement trajectory of the positioning cylinder 11 will be affected by various factors, such as the smoothness of the movement of the load rod 16 and the load airbag ring 17 in the initial state, and the smoothness of the sliding between the positioning cylinder 11 and the transverse seat 13. In order to eliminate the influence of the above factors on the detection result, a longitudinal sliding groove 14 is opened on the transverse seat 13. The bottom of the positioning cylinder 11 is slidably connected to the longitudinal sliding groove 14 through a longitudinal slider 15. The positioning cylinder 11 slides along the longitudinal sliding groove 14 through the longitudinal slider 15, which can improve the smoothness of the movement between the positioning cylinder 11 and the transverse seat 13.

[0028] In addition, a self-check mechanism is also provided on the detection table 1. The self-check mechanism includes a self-check cylinder 21, a first pressure sensor 20, and a second pressure sensor 22 located on the detection table 1. The output end of the self-check cylinder 21 abuts against the load block 7 through a top block. The first pressure sensor 20 is installed between the top block and the load block 7, and the second pressure sensor 22 is installed between the positioning cylinder 11 and the longitudinal slider 15. A self-check module is also provided on the intelligent detector 6. The self-check module is respectively connected to the reminder module, the first pressure sensor 20, the self-check cylinder 21, and the second pressure sensor 22 by signals. When performing self-check, at this time, the push rod is not installed on the sorting seat 2. At this time, the self-check module controls the self-check cylinder 21 to work. The output end of the self-check cylinder 21 pushes the load block 7 to displace through the top block. The load block 7 drives the load rod 16 to insert into the load airbag ring 17, and drives the positioning cylinder 11 to displace through the transverse guide rod 10. The longitudinal slider 15 at the bottom of the positioning cylinder 11 slides along the longitudinal chute 14 on the transverse seat 13. The first pressure sensor 20 and the second pressure sensor 22 feedback the detected pressure data to the self-check module. The self-check module compares the pressure data feedback by the first pressure sensor 20 with the preset pressure data (the self-check module presets the qualified pressure data between the top block and the load block 7 in the initial state), and judges that the detection device is unqualified when the pressure data is greater than the preset pressure data, and sends an unqualified signal to the reminder module. The reminder module issues an unqualified signal that the friction between the load rod 16 and the load airbag ring 17 is too large, reminding the operator to perform maintenance; and the self-check module compares the pressure data feedback by the second pressure sensor 22 with the preset pressure data (the self-check module presets the pressure data of the second pressure sensor 22 when the longitudinal slider 15 slides in the longitudinal chute 14 in the qualified state), and judges that the detection device is unqualified when the pressure data is greater than the preset pressure data, and sends an unqualified signal to the reminder module. The reminder module issues an unqualified signal that the friction between the longitudinal slider 15 and the longitudinal chute 14 is too large, reminding the operator to perform maintenance, so as to realize the self-check of the detection device, ensure that the detection device itself is in a qualified state before detecting the push rod, and avoid the influence of the friction between the load rod 16 and the load airbag ring 17 and between the longitudinal slider 15 and the longitudinal chute 14, or the lack of smoothness during their relative movement, resulting in inaccurate detection results and thus increasing production costs.

Claims

1. A manual push rod full-automatic detection and sorting device, characterized in that: Including: A detection table, on which a sorting seat for supporting a push rod to be tested is arranged; A driving mechanism, which includes a telescopic member installed on the detection table and a driving member connected to the output end of the telescopic member. The output end of the driving member is matched with the input rod of the push rod to be tested for driving the input rod of the push rod to be tested to rotate through the driving member; A detection mechanism, which includes a load block arranged at the output end of the push rod to be tested, a lateral guide rod connected to the side of the load block, a positioning cylinder sleeved on the lateral guide rod, a lateral synchronizing rod linked with the input rod of the push rod to be tested, and a vision sensor. When the input rod of the push rod to be tested rotates, it synchronously drives the lateral synchronizing rod to move laterally. The end of the lateral synchronizing rod is connected with a lateral seat. The bottom of the positioning cylinder is horizontally slidably connected to the lateral seat through a chute. The vision sensor is used to collect the movement track of the positioning cylinder.

2. The fully automatic inspection and sorting equipment with a manual push rod according to claim 1, wherein: A gear is installed at the output end of the driving member. The gear meshes with a synchronizing rack arranged parallel to the lateral guide rod through teeth. The upper end of the lateral synchronizing rod is inserted into the synchronizing rack through a vertical insertion rod.

3. A manual push rod full-automatic detection and sorting device according to claim 1, characterized in that: The sorting seat is rotatably connected to the detection table. Sorting channels are arranged on both sides of the detection table where the sorting seat is located for sorting the push rods after detection.

4. A manual push rod full-automatic detection and sorting device according to claim 1, wherein: An intelligent detector is arranged on the detection table. The intelligent detector is provided with a detection module, a processing module, a vision module and a reminder module. The detection module is respectively in signal connection with the processing module, the driving member and the telescopic member. The processing module is respectively in signal connection with the vision module and the reminder module. The vision module is in signal connection with the vision sensor.

5. A manual push rod full-automatic detection and sorting device according to claim 1, characterized in that: A track rod is vertically installed at the top of the positioning cylinder. The vision sensor is correspondingly arranged with the track rod. The vision sensor is used to collect the movement track of the track rod on the positioning cylinder.

6. A manual push rod full-automatic detection and sorting device according to claim 4, characterized in that: A load rod is fixed on the side of the load block away from the sorting seat and is arranged along the output end direction of the push rod to be tested. A load airbag ring installed on the detection table is sleeved on the load rod. The load airbag ring is externally connected with an air pump. The detection module is in signal connection with the air pump.

7. The manual push rod full-automatic detection and sorting equipment according to claim 6, characterized in that: A longitudinal chute is formed on the lateral seat. The bottom of the positioning cylinder is slidably connected to the longitudinal chute through a longitudinal slider.

8. A manual push rod full-automatic detection and sorting device according to claim 7, characterized in that: A self-checking mechanism is further arranged on the detection table. The self-checking mechanism includes a self-checking air cylinder, a pressure sensor one and a pressure sensor two located on the detection table. The output end of the self-checking air cylinder abuts against the load block through a top block. The pressure sensor one is installed between the top block and the load block. The pressure sensor two is installed between the positioning cylinder and the longitudinal slider.

9. The fully automatic inspection and sorting equipment with a manual push rod according to claim 8, characterized in that: A self-checking module is further arranged on the intelligent detector. The self-checking module is respectively in signal connection with the reminder module, the pressure sensor one, the self-checking air cylinder and the pressure sensor two.

10. A manual push rod full-automatic detection and sorting device according to claim 1, characterized in that: The lateral seat is horizontally slidably connected to the detection table through a plurality of guide rods.

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