Belt wheel cavity detection jig

Abstract

The utility model discloses a belt wheel cavity detection tool comprising a detection assembly comprising a pedestal and a pneumatic measuring head arranged on the pedestal; the movable assembly comprises a movable plate and a driving part, the movable plate is provided with a matching hole matched with the pneumatic measuring head, the periphery of the pneumatic measuring head is movably sleeved with the movable plate through the matching hole, and the driving part drives the movable plate to move up and down along the pneumatic measuring head; the belt wheel is arranged on the movable plate, the driving piece drives the movable plate, and the belt wheel moves downwards to enable the belt wheel to sleeve the periphery of the pneumatic measuring head so as to complete the detection of the belt wheel; and the driving piece drives the movable plate and the belt wheel to move upwards, so that the belt wheel is slowly separated from the pneumatic measuring head, and the belt wheel is taken down. According to the belt wheel cavity detection jig, manual operation is replaced by the jig, the detection efficiency is effectively improved, the belt wheel can be effectively prevented from being damaged and the pneumatic measuring head can be effectively prevented from being scratched in the detection process, and the cost is effectively saved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts, and more specifically, to a wheeled cavity inspection fixture. Background Technology

[0002] like Figure 1 The image shows a pulley for an automotive engine. After production, the inner diameter of its cavity (value a in the diagram) needs to be inspected to ensure the product meets requirements. The existing inspection method is as follows: the pulley is manually held and inserted into a pneumatic measuring head, which measures the inner diameter of the pulley cavity. After inspection, the pulley is manually removed from the pneumatic measuring head.

[0003] The existing testing method has the following drawbacks: During testing, the gap between the outer circumference of the pneumatic measuring head and the pulley cavity is only 0.015~0.02mm. When manually fitting the pulley cavity into the pneumatic measuring head for testing and removing it after testing, the process relies solely on feel and skill, which can easily lead to misalignment, causing the pulley to get stuck on the pneumatic measuring head, resulting in it not being able to be properly placed or removed. In addition, if the pulley gets stuck when manually fitting and removing it from the pneumatic measuring head, it takes a lot of time for employees to remove the pulley from the pneumatic measuring head, and it can also cause the pulley and the pneumatic measuring head to rub against each other, ultimately leading to the scrapping of the pulley and scratches and damage to the pneumatic measuring head.

[0004] In view of this, the inventors of this application have invented a wheeled cavity testing fixture. Utility Model Content

[0005] The purpose of this invention is to provide a pulley cavity testing fixture that effectively improves testing efficiency and avoids damage to the pulley and pneumatic measuring head.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a wheeled cavity testing fixture, comprising:

[0007] The detection assembly includes a base and a pneumatic measuring head disposed on the base;

[0008] The movable component includes a movable plate and a driving component. The movable plate has a mating hole adapted to the pneumatic measuring head, and the movable plate is movably sleeved on the outer periphery of the pneumatic measuring head through the mating hole. The driving component drives the movable plate to move up and down along the pneumatic measuring head.

[0009] The pulley is placed on the movable plate. The driving component drives the movable plate and the pulley to move downward so that the pulley is fitted onto the outer periphery of the pneumatic measuring head to complete the detection of the pulley. The driving component drives the movable plate and the pulley to move upward so that the pulley slowly disengages from the pneumatic measuring head to remove the pulley.

[0010] Furthermore, the top end face of the pneumatic measuring head always protrudes beyond the top surface of the movable plate.

[0011] Furthermore, the movable component also includes a horizontally arranged drive plate and a vertically arranged support plate. The drive plate is located below the movable plate, and the movable plate and the drive plate are connected and fixed through the support plate. The drive member is located below the drive plate, and the drive member drives the drive plate to move, thereby causing the support plate and the movable plate to move accordingly.

[0012] Furthermore, the drive plate is located below the pneumatic measuring head, and there are two support plates, located on both sides of the pneumatic measuring head, respectively. The drive component is located on the base.

[0013] Furthermore, the base is provided with at least two vertically arranged guide posts, and the drive plate is provided with guide holes that cooperate with the guide posts. The drive plate is movably engaged with the guide posts through the guide holes.

[0014] Furthermore, the guide hole is equipped with a linear bearing.

[0015] Furthermore, it includes a probe mounting plate, wherein the pneumatic measuring head is mounted on the probe mounting plate, the top end of the guide post is connected to the probe mounting plate, and the bottom end is connected to the base.

[0016] Furthermore, the driving component is a cylinder.

[0017] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0018] This utility model relates to a wheeled cavity testing fixture, which replaces manual operation, effectively improving testing efficiency. At the same time, the testing process can effectively avoid damage to the wheel and scratches on the pneumatic measuring head, thus saving costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an automobile pulley according to an embodiment of the present utility model;

[0020] Figure 2 This is a perspective view of the testing fixture according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the use of the testing fixture in an embodiment of this utility model. At this time, the cylinder piston rod is pushed out, and the movable plate is at its highest position.

[0022] Figure 4 This is a schematic diagram of the use of the testing fixture in an embodiment of this utility model. At this time, the cylinder piston rod retracts, and the pneumatic measuring head tests the pulley.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10-Detection components,

[0025] 11-Base, 12-Pneumatic measuring head, 13-Guide post, 14-Probe connecting plate,

[0026] 20-Activity Components

[0027] 21-Modible plate, 211-Matching hole, 22-Drive component, 23-Drive plate, 24-Support plate, 25-Linear bearing.

[0028] 30 - Pulley. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] It should be noted that in this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element of this utility model must have a specific orientation, and therefore should not be construed as a limitation of this utility model. Example

[0031] Cooperate Figures 1 to 4 As shown, this utility model discloses a pulley cavity inspection fixture for inspecting the cavity of an automobile engine pulley 30, specifically for applications such as... Figure 1 The test of the value 'a' shown indicates whether the inner diameter of the product conforms to the product standard.

[0032] Cooperate Figures 2 to 4 As shown, a wheeled cavity testing fixture includes:

[0033] The detection component 10 includes a base 11 and a pneumatic measuring head 12 disposed on the base 11;

[0034] The movable component 20 includes a movable plate 21 and a driving component 22. The movable plate 21 is provided with a mating hole 211 that is adapted to the pneumatic measuring head 12. The movable plate 21 is movably sleeved on the outer periphery of the pneumatic measuring head 12 through the mating hole 211. The driving component 22 drives the movable plate 21 to move up and down along the pneumatic measuring head 12.

[0035] The pulley 30 to be tested is placed on the movable plate 21. The driving component 22 drives the movable plate 21 and the pulley 30 downwards, causing the pulley 30 to fit onto the outer periphery of the pneumatic measuring head 12, so that the pneumatic measuring head can complete the testing of the pulley 30. After the testing is completed, the driving component 22 drives the movable plate 21 and the pulley 30 upwards, causing the pulley 30 to slowly detach from the pneumatic measuring head 12, so that the pulley 30 can be removed. The pneumatic measuring head 12 adopts existing technology, which will not be described in detail here, and it can accurately detect the inner diameter of the cavity of the pulley 30.

[0036] Preferably, the top end face of the pneumatic measuring head 12 always protrudes beyond the top surface of the movable plate 21. Especially after the test is completed, when the driving component 22 drives the movable plate 21 and the pulley 30 to move upward, the pulley 30 cannot completely detach from the pneumatic measuring head 12, ensuring that the top end face of the pneumatic measuring head 12 is slightly higher than the top surface of the movable plate 21 (e.g., 2-3 mm higher). This allows for easy removal of the tested pulley 30 and quick placement of the next pulley 30 to be tested at the testing position on the movable plate 21. The portion of the pneumatic measuring head 12 protruding beyond the top surface of the movable plate 21 serves to quickly position the pulley 30 to be tested.

[0037] The movable component 20 further includes a horizontally arranged drive plate 23 and a vertically arranged support plate 24. The drive plate 23 is located below the movable plate 21, and the movable plate 21 and drive plate 23 are connected and fixed through the support plate 24. The drive element 22 is located below the drive plate 23. The drive element 22 drives the drive plate 23 to move, thereby causing the support plate 24 and movable plate 21 to move accordingly. The movable plate 21 and drive plate 23 are both horizontally arranged, and the support plate 24 is vertically arranged, with its two ends connected and fixed to the movable plate 21 and drive plate 23 respectively. Thus, the movable plate 21, drive plate 23, and support plate 24 form a whole, moving up and down together as a whole under the driving action of the drive element 22. Specifically, the drive plate 23 is located below the pneumatic measuring head 12, and there are two support plates 24, located on both sides of the pneumatic measuring head 12 respectively. The drive element 22 is located on the base 11.

[0038] The base 11 is provided with at least two vertically arranged guide posts 13, and the drive plate 23 is provided with guide holes that cooperate with the guide posts 13. The drive plate 23 is movably engaged with the guide posts 13 through the guide holes. When the drive member 22 drives the drive plate 23 to move up and down, the drive plate 23 moves along the guide posts 13 through the guide holes. The cooperation between the guide holes and the guide posts 13 plays a role in limiting and guiding the up and down movement of the drive plate 23 and the movable plate 21, making its movement more stable. Preferably, the guide holes are provided with linear bearings 25. In this embodiment, there are 4 guide posts 13, and the 4 guide posts 13 are of equal length, and the two support plates 24 are of equal height, so as to ensure that the top surface of the movable plate 21 is perpendicular to the axis of the pneumatic measuring head 12.

[0039] This utility model's pulley 30 cavity testing fixture also includes a probe mounting plate 14, on which the pneumatic measuring head 12 is mounted. The top end of the guide post 13 is connected to the probe mounting plate 14, and the bottom end is connected to the base 11. This fixture can perform testing on different pulley 30 cavity diameters simply by replacing the pneumatic measuring head 12 and the movable plate 21, offering strong versatility and saving on fixture investment costs.

[0040] In this embodiment, the driving component 22 is a cylinder. Alternatively, it can be other suitable driving components 22, such as a hydraulic cylinder.

[0041] Cooperate Figures 2 to 4 As shown, the process of using this testing fixture is as follows:

[0042] 1. The cylinder piston rod pushes upward, and the drive plate 23 and the movable plate 21 rise to the highest position. At this time, the top of the pneumatic measuring head 12 is slightly higher than the top surface of the movable plate 21.

[0043] 2. The pulley 30 is quickly placed on the movable plate 21 by positioning the pneumatic measuring head 12;

[0044] 3. The cylinder piston rod retracts downwards, and the pulley 30, drive plate 23, and movable plate 21 descend. The cavity of the pulley 30 smoothly slides onto the outer circumference of the pneumatic measuring head 12. During this process, the operator can also gently press the upper end of the pulley 30 to make it slide onto the outer circumference of the pneumatic measuring head 12 more smoothly.

[0045] 4. The pneumatic measuring head 12 measures the cavity of pulley 30;

[0046] 5. Once the measurement is complete, the cylinder piston rod pushes upward, and the drive plate 23 and movable plate 21 rise to their highest positions. The pulley 30 that has been tested is removed, and the next pulley 30 to be tested is placed in the next position. This process is repeated.

[0047] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A wheel type cavity detection jig, characterized by: The utility model relates to a detection device for detecting the outer diameter of a belt wheel, comprising: a detection assembly, comprising a base and a pneumatic measuring head arranged on the base; a movable assembly, comprising a movable plate and a driving member, the movable plate is provided with a matching hole adapted to the pneumatic measuring head, and the movable plate is movably sleeved on the outer periphery of the pneumatic measuring head through the matching hole, and the driving member drives the movable plate to move up and down along the pneumatic measuring head; a belt wheel is arranged on the movable plate, and the driving member drives the movable plate and the belt wheel to move downward so that the belt wheel is sleeved on the outer periphery of the pneumatic measuring head to complete the detection of the belt wheel, and the driving member drives the movable plate and the belt wheel to move upward so that the belt wheel is slowly separated from the pneumatic measuring head to take off the belt wheel.

2. The wheel type cavity detection fixture of claim 1, wherein: The top end surface of the pneumatic measuring head always protrudes from the top surface of the movable plate.

3. The wheel type cavity detection fixture of claim 1, wherein: The movable assembly further comprises a horizontally arranged driving plate and a vertically arranged support plate, the driving plate is arranged below the movable plate, and the movable plate and the driving plate are connected and fixed through the support plate, and the driving member is arranged below the driving plate, the driving member drives the driving plate to move, and the support plate and the movable plate move accordingly.

4. The wheel type cavity detection fixture of claim 3, wherein: The driving plate is arranged below the pneumatic measuring head, and the number of the support plates is two, which are arranged on the two sides of the pneumatic measuring head respectively, and the driving member is arranged on the base.

5. The wheel type cavity detection fixture of claim 3, wherein: The base is provided with at least two vertically arranged guide columns, the driving plate is provided with a guide hole matched with the guide columns, and the driving plate is movably matched with the guide columns through the guide hole.

6. The wheel type cavity detection fixture of claim 5, wherein: The guide hole is provided with a linear bearing.

7. The wheel type cavity detection fixture of claim 5, wherein: The utility model further comprises a measuring head connecting plate, the pneumatic measuring head is arranged on the measuring head connecting plate, the top end of the guide column is connected with the measuring head connecting plate, and the bottom end is connected with the base.

8. The wheel type cavity detection fixture of any one of claims 1 to 7, wherein: The driving member is a pneumatic cylinder.

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