Concentricity detection mechanism and worm detection equipment

Abstract

The utility model relates to the technical field of detection equipment, in particular to a concentricity detection mechanism and worm detection equipment, and the worm detection equipment comprises a feeding mechanism, an inner diameter detection mechanism, a concentricity detection mechanism, a discharging mechanism and a transfer mechanism. The inner diameter detection mechanism comprises a gas meter and a gas meter measuring head, and the gas meter measuring head is connected with a measuring head jacking driving piece; the second positioning platform deck is arranged above the gas meter measuring head, and the end face of the second positioning platform deck is provided with a through hole for the gas meter measuring head to lift and penetrate through; the concentricity detection mechanism comprises a first positioning platform deck, a belt pressing assembly and a concentricity measurement assembly. The integrated worm detection equipment provided by the utility model can realize common detection of the inner diameter and concentricity of the worm, is high in integration level, and realizes high-efficiency circulation of materials through the design of the transfer mechanism and the carrying mechanism.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a concentricity testing mechanism and a worm gear testing device. Background Technology

[0002] Worm gear mechanisms are commonly used to transmit motion and power between two intersecting shafts. They feature a large single-stage transmission ratio, smooth transmission, low noise, and self-locking characteristics, and are widely used in industrial production. Worm drives are a key fundamental component, and the meshing position, inner diameter, and concentricity of the worm wheel and worm shaft directly affect transmission performance. To ensure the accuracy, smooth operation, and reliability of worm drives, precise detection of the inner diameter and concentricity of the worm wheel and worm shaft is of significant theoretical and engineering importance. Current worm gear testing suffers from complex operation and low automation, resulting in low testing efficiency and difficulty in timely error detection, impacting production efficiency and cost. Therefore, developing new worm testing equipment and technologies to improve automation and accuracy is crucial for enhancing the performance and reliability of worm gear transmission devices. Utility Model Content

[0003] The purpose of this invention is to provide a concentricity detection mechanism and a worm gear detection device to solve the problems of low automation and accuracy in worm gear detection in the prior art.

[0004] The technical solution of this utility model is: a concentricity detection mechanism, comprising:

[0005] The first positioning platform is for inserting and placing materials;

[0006] The belt clamping assembly includes a belt component and a clamping drive that drives the belt component to move closer to or away from the material on the first positioning platform.

[0007] The concentricity measuring component is located on a different side of the first positioning platform from the belt clamping component. It includes a concentricity measuring instrument and a measuring drive component that drives the concentricity measuring instrument to move closer to or away from the material on the first positioning platform.

[0008] Preferably, the belt component includes a belt, a pair of synchronous pulleys, and a drive motor; a tension pulley is also provided inside or outside the space enclosed by the belt.

[0009] Preferably, the pressing drive component drives the belt component to perform lifting and lateral movements, including a lifting cylinder and a first lateral movement cylinder;

[0010] The measuring drive unit drives the concentricity measuring instrument to perform a lateral movement, including a second lateral movement cylinder.

[0011] This application also discloses a worm gear testing device, including a feeding mechanism, the above-mentioned concentricity testing mechanism, a discharging mechanism, and a transfer mechanism;

[0012] The feeding mechanism includes a feeding platform, and the feeding platform has a material tray for worm gears to be arranged and placed.

[0013] The feeding mechanism is used to store the worm gear after testing is completed;

[0014] The transfer mechanism includes grippers for gripping the worm gear and a transfer drive for moving the grippers within space.

[0015] Preferably, it also includes an inner diameter measuring mechanism, the inner diameter measuring mechanism comprising:

[0016] A gas meter and a gas meter probe, wherein the gas meter probe is connected to a probe lifting drive;

[0017] The second positioning platform is positioned above the gas meter probe, and has a through hole on its end face for the gas meter probe to be lifted through; the gas meter probe extends to the end face of the second positioning platform for the insertion of the worm gear.

[0018] Preferably, a protective cover is also installed on the second positioning platform, as well as a protective drive component that drives the protective cover to move along the end face of the second positioning platform; the protective cover is driven to be positioned above the worm gear inserted on the second positioning platform.

[0019] Preferably, a transport mechanism is provided between the inner diameter detection mechanism and the concentricity detection mechanism;

[0020] The conveying mechanism includes a servo module, a lifting adjustment cylinder installed at the output end of the servo module, a rotary cylinder installed at the output end of the lifting adjustment cylinder, and a worm gear clamp installed at the output end of the rotary cylinder; the worm gear clamp is driven to transfer the worm gear on the second positioning platform to the first positioning platform.

[0021] Preferably, the feeding platform is provided in two sets at different heights, including an upper slide and a lower slide; the upper slide and the lower slide are respectively connected to a slide drive cylinder and controlled by a solenoid valve, so that the upper slide and the lower slide alternately feed material.

[0022] Preferably, the unloading mechanism includes a receiving cylinder, a positioning plate for mounting the receiving cylinder, and a slide cylinder; the positioning plate located below the receiving cylinder is connected to the output end of the slide cylinder, and the positioning plate located above the receiving cylinder has an inlet aligned with the opening of the receiving cylinder.

[0023] Preferably, the transfer mechanism is provided in two sets, and the transfer driving components are a loading horizontal multi-joint robot and an unloading horizontal multi-joint robot.

[0024] Compared with the prior art, the advantages of this utility model are:

[0025] (1) The concentricity of the worm is detected by an automated device. The rotation of the worm is achieved by a belt for pressing and transmission. Combined with the feedback from the concentricity measuring instrument, the concentricity can be quickly calculated and fed back in real time. Furthermore, the design of the tension pulley can be adjusted to increase the contact area between the belt and the worm, thereby increasing the friction. The structure is compact and ingenious.

[0026] (2) The integrated worm gear testing equipment also includes the design of loading and unloading mechanisms, inner diameter testing mechanism, and handling mechanism; enabling the worm gear testing equipment to achieve joint testing of worm inner diameter and concentricity, with high integration. Through the design of transfer mechanism and handling mechanism, efficient material flow is achieved. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] Figure 1 This is a schematic diagram of the structure of a worm gear testing device according to the present invention;

[0029] Figure 2 This is a schematic diagram of the feeding mechanism described in this utility model;

[0030] Figure 3 This is a schematic diagram of the inner diameter detection mechanism described in this utility model;

[0031] Figure 4 This is a schematic diagram showing the structural distribution of the gas meter probe, the second positioning platform, and the protective cover described in this utility model.

[0032] Figure 5 This is a schematic diagram of the concentricity detection mechanism described in this utility model;

[0033] Figure 6 This is a top view of the worm gear, belt tensioning assembly, and concentricity measuring assembly described in this utility model in a concentricity detection scenario;

[0034] Figure 7 This is a schematic diagram of the transport mechanism described in this utility model;

[0035] Figure 8 This is a schematic diagram of the feeding mechanism described in this utility model.

[0036] Among them: 1. Feeding mechanism;

[0037] 10. Loading platform; 11. Upper slide table; 12. Lower slide table; 13. Slide table drive cylinder; 14. Material tray; 15. Positioning column; 16. Material tray positioning block.

[0038] 2. Inner diameter testing agency;

[0039] 21. Gas meter; 22. Gas meter probe; 23. Probe lifting drive; 24. Second positioning platform; 25. Protective cover; 26. Protective drive.

[0040] 3. Concentricity testing agency;

[0041] 31. First positioning platform;

[0042] 32. Belt assembly; 321. Belt; 322. Synchronous pulley; 323. Drive motor; 324. Tensioner pulley;

[0043] 33. Pressing drive component; 331. First transverse cylinder; 332. Lifting cylinder;

[0044] 34. Concentricity measuring component; 341. Concentricity measuring instrument; 342. Second transverse cylinder;

[0045] 4. Handling mechanism;

[0046] 41. Servo module; 42. Lifting and adjusting cylinder; 43. Rotary cylinder; 44. Worm gear clamp; 45. Vision camera.

[0047] 5. Feeding mechanism;

[0048] 51. Receiving cylinder; 52. Positioning plate; 53. Feed inlet; 54. Slide cylinder; 55. Defective product placement table.

[0049] 6. Transfer mechanism;

[0050] 61. Loading horizontal multi-joint robot; 62. Unloading horizontal multi-joint robot. Detailed Implementation

[0051] The present invention will be further described in detail below with reference to specific embodiments:

[0052] like Figure 1 As shown, a worm gear testing device includes a feeding mechanism 1, an inner diameter testing mechanism 2, a concentricity testing mechanism 3, a transfer mechanism 6, a handling mechanism 4, and a unloading mechanism 5.

[0053] Regarding feeding mechanism 1:

[0054] like Figure 2 As shown, the feeding mechanism 1 includes a feeding platform 10, on which a material tray 14 is provided for the worm gears to be arranged.

[0055] In one implementation, such as Figure 2 As shown, the loading platform 10 has two sets located at different heights, including an upper slide 11 and a lower slide 12. The upper slide 11 and the lower slide 12 are mounted on different guide rails and are connected to slide drive cylinders 13. The two slide drive cylinders 13 are controlled by a solenoid valve to alternately feed material to the upper slide 11 and the lower slide 12, preventing the upper slide 11 and the lower slide 12 from being on the same side. Multiple trays 14 are arranged on the upper slide 11 and the lower slide 12, and are fixed on the upper slide 11 or the lower slide 12 by tray positioning blocks 16. The trays 14 have positioning posts 15 arranged on them, and the axis of the positioning posts 15 is perpendicular to the end face of the tray 14, for inserting the worm gear to be tested.

[0056] In other embodiments, the feeding platform 10 may be set in other quantities, such as only one set of feeding platforms 10. However, in this case, uninterrupted feeding cannot be achieved. After the feeding is completed, the material needs to be replenished before subsequent feeding can be carried out.

[0057] Regarding internal diameter testing agency 2:

[0058] like Figure 3 As shown, the inner diameter detection mechanism 2 includes a gas meter 21 and a gas meter probe 22, a second positioning platform 24, and a protective cover 25.

[0059] Combination Figure 4 As shown, the gas meter probe 22 is connected to a probe lifting drive 23; in this embodiment, the probe lifting drive 23 is a cylinder, which drives the gas meter probe 22 to move in the vertical direction.

[0060] The second positioning platform 24 is positioned above the gas meter probe 22, and has a through hole on its end face for the gas meter probe 22 to be lifted and penetrated. The gas meter probe 22, which extends to the top of the end face of the second positioning platform 24, is used for inserting the worm gear. At this time, the gas meter probe 22 extends into the worm gear. When the airflow passes through the nozzle of the gas meter probe 22 and flows through the gap between the gas meter probe 22 and the small hole to be measured, the change in the orifice diameter will cause a change in gas pressure or flow rate. By measuring the change in pressure or flow rate, the size of the orifice diameter can be determined after processing by the sensor.

[0061] The second positioning platform 24 is also equipped with a protective cover 25 and a protective drive component 26 that drives the protective cover 25 to move along the end face of the second positioning platform 24. The protective cover 25 is driven to be positioned above the worm gear inserted on the second positioning platform 24 to prevent oil and water from splashing from the worm gear during the air inspection process. Regarding the protective drive component 26, a cylinder is used in this embodiment, but other drive components that can achieve linear output can also be used, such as a gear and rack structure, a combination of a servo motor and a lead screw, etc.

[0062] During the testing process, the gas flow meter probe 22 is initially in a raised position. After the worm gear is inserted onto the gas flow meter probe 22, the protective cover 25 is driven to move above the worm gear and cover it. Then, the gas flow meter 21 starts, and the gas flow meter probe 22 is driven to slowly descend. The gas flow meter 21 records the entire data of the worm gear's inner diameter and sends it back to the industrial control computer. After the test is completed, the protective cover 25 opens, and the worm gear, whose inner diameter has been measured, is removed.

[0063] In this embodiment, two gas meter probes 22 are provided, each driven by a probe lifting drive 23. Of course, in other embodiments, a one-to-two structure design can also be adopted, that is, one probe lifting drive 23 simultaneously drives the movement of two gas meter probes 22, thereby enabling synchronous detection of the inner diameter of the two worm gears. Other numbers of gas meter probes 22 can also be provided.

[0064] Regarding concentricity testing agency 3:

[0065] like Figure 5 As shown, a concentricity detection mechanism 3 includes a first positioning platform 31, a belt pressing assembly (including a belt component 32 and a pressing drive component 33), and a concentricity measuring assembly 34.

[0066] The first positioning platform 31 is equipped with positioning pins for inserting materials (i.e., worm gears). It should be noted that, in order to ensure the rationality of the testing work, the number of products tested by the concentricity testing mechanism 3 in a single test is the same as the number of products tested by the inner diameter testing mechanism 2 in a single test. In other words, the number of gas flow meter probes 22 is the same as the number of positioning pins.

[0067] The belt clamping assembly includes a belt component 32 and a clamping drive component 33 that drives the belt component 32 to move closer to or away from the material on the first positioning platform 31. The belt component 32 includes a belt 321, a pair of synchronous pulleys 322, and a drive motor 323, which is a stepper motor. A tension pulley 324 is also provided inside or outside the space enclosed by the belt 321. In this embodiment, combined with... Figure 6As shown, the tension pulley 324 is positioned within the space enclosed by the belt 321. By adjusting the tension pulley 324, the contact area between the belt 321 and the worm can be increased under the compressed state, thereby increasing friction. The compression drive 33 drives the belt assembly 32 to perform lifting and lateral movements, including a lifting cylinder 332 and a first lateral movement cylinder 331. The lifting cylinder 332 is primarily designed to avoid collisions when the worm is fed to the first positioning platform 31.

[0068] The concentricity measuring component 34 and the belt tensioning component are respectively located on different sides of the first positioning platform 31. The component includes a concentricity measuring instrument 341 and a measuring drive that moves the concentricity measuring instrument 341 closer to or further away from the material on the first positioning platform 31. During the rotation of the worm gear, the concentricity measuring instrument 341 presses against the worm gear teeth, and the concentricity is calculated by measuring the displacement change of the measuring component. The measuring drive, including a second lateral movement cylinder 342, drives the concentricity measuring instrument 341 to perform a lateral movement.

[0069] During the testing process, after the worm is placed on the first positioning platform 31, the belt 321 is pressed by the clamping drive 33 to tighten the worm. The concentricity measuring instrument 341 is driven to press against the worm tooth surface, and the concentricity measurement is started. At this time, the belt 321 starts to rotate, and the worm stops after rotating one and a half revolutions. The concentricity measuring instrument 341 detects and feeds back the data to the industrial control computer.

[0070] Regarding moving company 4:

[0071] like Figure 7 As shown, the conveying mechanism 4 includes a servo module 41, a lifting adjustment cylinder 42 installed at the output end of the servo module 41, a rotary cylinder 43 installed at the output end of the lifting adjustment cylinder 42, and a worm gear clamp 44 installed at the output end of the rotary cylinder 43; the worm gear clamp 44 is driven to transfer the worm on the second positioning platform 24 to the first positioning platform 31.

[0072] It should be noted that a vision camera 45 is also provided on the path of the worm gear clamp 44 driven by the servo module 41 to move in the horizontal direction. During the handling process, the vision camera 45 is used to determine whether the worm gripper 44 is holding a "positive material" or a "negative material". The definition of positive and negative is based on the helical direction of the thread. If the worm is a positive material, the corresponding rotary cylinder 43 does not rotate. If the worm is a negative material, the corresponding rotary camera rotates 180° to adjust the direction of the worm.

[0073] Regarding material feeding mechanism 5:

[0074] like Figure 8As shown, the unloading mechanism 5 stores the worm gears after testing. The unloading mechanism 5 includes a receiving cylinder 51, a positioning plate 52 for mounting the receiving cylinder 51, and a slide cylinder 54. The positioning plate 52, located below the receiving cylinder 51, is connected to the output end of the slide cylinder 54. The positioning plate 52, located above the receiving cylinder 51, has an inlet 53 aligned with the opening of the receiving cylinder 51. After testing, the worm gears are placed into the receiving cylinder 51 through the inlet 53. The receiving cylinder 51 is used to stack multiple worm gears in the axial direction.

[0075] In this embodiment, the receiving cylinder 51 is used to hold worm gears that have passed inspection, while for worm gears that have failed inspection, combined with... Figure 1 As shown, a defective product placement table 55 can be set up. Based on the test results, the worm gear is placed into the receiving cylinder 51 or the defective product placement table 55.

[0076] Furthermore, in this embodiment, the feeding mechanism 5 is provided in two sets, each set of feeding mechanism 5 having multiple receiving cylinders 51, and the two sets of feeding mechanisms 5 can realize feeding without stopping the worm gear.

[0077] Regarding transfer mechanism 6:

[0078] Combination Figure 1 As shown, the transfer mechanism 6 includes grippers for grasping the worm gear and transfer drive components for driving the grippers to move within space. The transfer mechanism 6 has two sets of transfer drive components: a loading horizontal multi-joint robot 61 and an unloading horizontal multi-joint robot 62.

[0079] Among them, the loading horizontal multi-joint robot 61 drives the gripper to transfer the worm gear on the loading platform 10 to the second positioning platform 24; the unloading horizontal multi-joint robot 62 drives the gripper to transfer the worm gear on the first positioning platform 31 to the receiving cylinder 51 or the defective product placement platform 55.

[0080] The working principle of this utility model is as follows:

[0081] a. Arrange the worm gears in sequence on the material tray 14. The material tray 14 with full material is positioned on the feeding platform 10. Then the upper slide 11 and the lower slide 12 alternately complete the feeding in sequence.

[0082] b. The horizontal multi-joint robot 61 drives the gripper to transfer the worm gear on the loading platform 10 to the second positioning platform 24, and the inner diameter of the worm gear is detected by the inner diameter detection mechanism 2.

[0083] c. When the conveying mechanism 4 is working, the worm gear clamp 44 is driven to transfer the worm gear on the second positioning platform 24 to the first positioning platform 31; during the process, the orientation of the worm gear is detected by the vision camera 45 and adjusted by the rotary cylinder 43.

[0084] d. The concentricity detection mechanism 3 works in conjunction with the belt tightening assembly and the concentricity measuring assembly 34 to complete the detection of the worm's concentricity;

[0085] e. After the inner diameter and concentricity tests are completed, determine whether the worm gear is a good product or a defective product. If the worm gear is a good product, the unloading horizontal multi-joint robot 62 drives the gripper to transfer the worm gear on the first positioning platform 31 to the receiving cylinder 51. If the worm gear is a defective product, the unloading horizontal multi-joint robot 62 drives the gripper to transfer the worm gear on the first positioning platform 31 to the defective product placement platform 55.

[0086] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A concentricity detection mechanism, characterized in that, include: The first positioning platform is for inserting and placing materials; The belt clamping assembly includes a belt component and a clamping drive that drives the belt component to move closer to or away from the material on the first positioning platform. The concentricity measuring component is located on a different side of the first positioning platform from the belt clamping component. It includes a concentricity measuring instrument and a measuring drive component that drives the concentricity measuring instrument to move closer to or away from the material on the first positioning platform.

2. The concentricity detection mechanism according to claim 1, characterized in that: The belt assembly includes a belt, a pair of synchronous pulleys, and a drive motor; a tension pulley is also provided inside or outside the space enclosed by the belt.

3. The concentricity detection mechanism according to claim 2, characterized in that: The pressing drive unit drives the belt component to perform lifting and lateral movements, including a lifting cylinder and a first lateral movement cylinder; The measuring drive unit drives the concentricity measuring instrument to perform a lateral movement, including a second lateral movement cylinder.

4. A worm gear testing device, characterized in that: It includes a feeding mechanism, a concentricity detection mechanism as described in any one of claims 1-3, a feeding mechanism, and a transfer mechanism; The feeding mechanism includes a feeding platform, and the feeding platform has a material tray for worm gears to be arranged and placed. The feeding mechanism is used to store the worm gear after testing is completed; The transfer mechanism includes grippers for gripping the worm gear and a transfer drive for moving the grippers within space.

5. The worm gear testing device according to claim 4, characterized in that: It also includes an inner diameter measuring mechanism, which comprises: A gas meter and a gas meter probe, wherein the gas meter probe is connected to a probe lifting drive; The second positioning platform is positioned above the gas meter probe, and has a through hole on its end face for the gas meter probe to be lifted through; the gas meter probe extends to the end face of the second positioning platform for the insertion of the worm gear.

6. The worm gear testing device according to claim 5, characterized in that: The second positioning platform is also equipped with a protective cover and a protective drive component that drives the protective cover to move along the end face of the second positioning platform; the protective cover is driven to be positioned above the worm gear inserted on the second positioning platform.

7. The worm gear testing device according to claim 5, characterized in that: A transport mechanism is provided between the inner diameter detection mechanism and the concentricity detection mechanism; The conveying mechanism includes a servo module, a lifting adjustment cylinder installed at the output end of the servo module, a rotary cylinder installed at the output end of the lifting adjustment cylinder, and a worm gear clamp installed at the output end of the rotary cylinder; the worm gear clamp is driven to transfer the worm gear on the second positioning platform to the first positioning platform.

8. The worm gear testing device according to claim 4, characterized in that: The feeding platform is provided in two sets at different heights, including an upper slide and a lower slide. The upper slide and the lower slide are respectively connected to a slide drive cylinder and controlled by a solenoid valve to feed materials alternately between the upper slide and the lower slide.

9. A worm gear testing device according to claim 4, characterized in that: The feeding mechanism includes a receiving cylinder, a positioning plate for mounting the receiving cylinder, and a slide cylinder; the positioning plate located below the receiving cylinder is connected to the output end of the slide cylinder, and the positioning plate located above the receiving cylinder has an inlet aligned with the opening of the receiving cylinder.

10. A worm gear testing device according to claim 4, characterized in that: The transfer mechanism consists of two sets, with the transfer drive components being a loading horizontal multi-joint robot and an unloading horizontal multi-joint robot.

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