Bush test fixture structure
By designing a separate bushing test fixture structure and using a cylinder to drive a moving plate to push the clamping parts, the problem of cumbersome bushing replacement operation was solved, and efficient and continuous bushing testing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING JINYUN PRECISION HARWARE CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
Existing bushing test fixtures require multiple operations of the limiting components when changing bushings, resulting in low testing efficiency.
A bushing test fixture structure was designed, which adopts a separate arrangement of cylinder, limit mechanism and clamping component. The cylinder drives the moving plate to push the clamping component, so as to realize the rapid replacement of bushing and internal inspection.
This improved the operational efficiency of bushing testing, reduced waiting time, and enhanced the continuity and efficiency of bushing inspection.
Smart Images
Figure CN224183006U_ABST
Abstract
Description
A bushing test fixture structure Technical Field
[0001] This utility model relates to the field of bushing processing technology, and in particular to a bushing testing fixture structure. Background Technology
[0002] A bushing, also known as a sleeve, is a cylindrical part used in mechanical components to reduce friction and protect shafts or other parts from wear. It is typically installed between two relatively moving parts, such as between a bearing and a shaft, or between a shaft and a bore, extending equipment life and improving operating efficiency by reducing direct contact. Materials and Properties: Bushings can be made from a variety of materials, including metals (such as copper, aluminum, and steel), plastics, rubber, and composite materials. The specific choice depends on the application environment and requirements. For example, stainless steel or special alloys may be used in high-temperature or corrosive environments; while copper or oil-impregnated bearing materials may be chosen where good lubrication is required. Bushing inspection fixtures are tools specifically designed to check the dimensional accuracy, shape errors, and surface quality of bushings. These fixtures ensure that bushings meet design specifications, thereby guaranteeing their performance and reliability in practical applications.
[0003] Currently, before testing and inspecting the bushing, it is necessary to place the bushing into the fixture in the middle of the workbench. Since the fixture is in a fixed installation state, the limiting piece of the previous bushing needs to be released before the next bushing can be installed. Then the limiting piece needs to be reset. This process needs to be repeated multiple times before the workpiece can be replaced, which is cumbersome and reduces the efficiency of testing and inspection.
[0004] Therefore, it is necessary to provide a bushing test fixture structure to solve the above-mentioned technical problems. Summary of the Invention
[0005] In response to the above situation and to overcome the defects of the existing technology, this utility model provides a bushing test fixture structure to solve the current problem that before testing and inspecting bushings, it is necessary to place the bushing into a fixture in the middle of the workbench. Since the fixture is in a fixed installation state, the limiting part of the previous bushing needs to be released before the next bushing can be installed. Then the limiting part needs to be reset. This requires repeated operations to replace the workpiece, which is cumbersome and reduces the efficiency of testing and inspection.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A bushing test fixture structure includes: a worktable, a cylinder, a test piece, a limiting mechanism, a clamping component, and auxiliary components;
[0008] A cylinder is installed on the left side of the top surface of the workbench. The cylinder is connected to the limiting mechanism. Slide rails are installed at intervals on the top surface of the workbench. The interior of the slide rails is connected to the limiting mechanism. The limiting mechanism and the clamping component are separately configured.
[0009] In one embodiment, the limiting mechanism comprises a movable plate, a slider, a connecting plate, a stationary limiting plate, a movable limiting plate, a side plate, and a first spring telescopic rod. Sliders are installed on the bottom of both sides of the movable plate, and the sliders are slidably connected to the slide rail. A connecting plate is installed on the top left side of the movable plate, and the connecting plate is connected to the cylinder. A stationary limiting plate is installed on the left side of the top surface of the movable plate, and movable limiting plates are installed at intervals on the right side of the stationary limiting plate. Both the stationary and movable limiting plates are U-shaped structures with hollow interiors, and a top plate is installed on the opposite side of the top surface. The right end of the movable limiting plate is connected to the side plate via the first spring telescopic rod.
[0010] In one embodiment, the clamping member comprises a base plate, a second spring telescopic rod, a connecting rod, a perforated plate, a limiting rod, an anti-slip pad, and a contact plate. The second spring telescopic rod is installed in the center of the top surface of the base plate. A connecting rod is installed on the right side of the telescopic end of the second spring telescopic rod. A perforated plate is installed on the right side of the connecting rod. The perforated plate has a circular inlet hole inside, which is a bushing placement area. The limiting rod is installed in a circular array on the bottom surface of the perforated plate. The limiting rod has an overall L-shaped structure, with its bottom horizontal section extending toward the center point of the perforated plate. An anti-slip pad is installed on the inner side wall of the vertical section of the limiting rod. The anti-slip pad has an outer arc surface structure and is made entirely of rubber. A contact plate is installed on the top surface of the second spring telescopic rod.
[0011] In one embodiment, a test piece is mounted on the top right side of the workbench. The test piece consists of an electrical control box, a mounting hole, a main rod, a wide-angle camera, and an auxiliary light. The electrical control box is mounted on the right end face of the workbench. A mounting hole is provided in the middle of the top right side of the workbench. The main rod is installed in the mounting hole. A wide-angle camera is mounted on the top surface of the main rod. An auxiliary light is mounted on the upper outer periphery of the main rod.
[0012] In one embodiment, an auxiliary component is mounted above the right end of the slide rail. The auxiliary component consists of a top frame, an electric push rod, and a push plate. The electric push rod is mounted on the inner top surface of the top frame, and the push plate is mounted on the bottom of the electric push rod.
[0013] The beneficial effects of this utility model are as follows:
[0014] (1) This utility model pre-installs the bushing into the clamping part and installs it during the testing process of the previous bushing. After the previous bushing is tested, the clamping part can be taken out directly and another clamping part can be placed in. There is no need for excessive waiting time, which improves the connection efficiency between operation steps and thus improves the bushing testing efficiency.
[0015] (2) The present invention moves the movable plate to the bottom of the top frame. At this time, the bushing is directly above the main rod. The electric push rod drives the push plate to move down, so that the push plate abuts against the contact plate and the second spring telescopic rod is pressed down, so that the inside of the bushing enters the outside of the main rod. The bushing is inspected internally by the cooperation of the wide-angle camera and the auxiliary light. Attached Figure Description
[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 is a detailed view of the top surface component of the workbench of this utility model;
[0018] Figure 3 is a detailed view of the test and inspection component of this utility model;
[0019] Figure 4 shows a detailed view of the limiting mechanism and clamping component of this utility model.
[0020] The corresponding names of the attached figures are as follows: workbench 1, slide rail 11, cylinder 2, detection component 3, electrical control box 31, mounting hole 32, main rod 33, wide-angle camera 34, auxiliary light 35, limiting mechanism 4, moving plate 41, slider 42, connecting plate 43, static limiting plate 44, dynamic limiting plate 45, side plate 46, first spring telescopic rod 47, clamping component 5, base plate 51, second spring telescopic rod 52, connecting rod 53, perforated plate 54, limiting rod 55, anti-slip pad 56, contact plate 57, auxiliary component 6, top frame 61, electric push rod 62, push plate 63. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.
[0022] As shown in Figures 1-2, the bushing test fixture structure provided by this utility model includes: a workbench 1, a cylinder 2, a test piece 3, a limiting mechanism 4, a clamping piece 5, and an auxiliary piece 6.
[0023] As shown in Figures 1-4, a cylinder 2 is installed on the left side of the top surface of the workbench 1. The cylinder 2 is connected to the limiting mechanism 4. Slide rails 11 are installed at intervals on the top surface of the workbench 1. The interior of the slide rails 11 is connected to the limiting mechanism 4. The limiting mechanism 4 and the clamping member 5 are separately configured. The bushing is pre-placed in the clamping member 5 and installed during the testing of the previous bushing. After the previous bushing is tested, the clamping member 5 can be directly removed and another clamping member 5 can be placed in. There is no need for excessive waiting time, which improves the connection efficiency between operation steps and thus improves the bushing testing efficiency.
[0024] Preferably, in one embodiment, as shown in FIG4, the limiting mechanism 4 is composed of a movable plate 41, a slider 42, a connecting plate 43, a static limiting plate 44, a movable limiting plate 45, a side plate 46, and a first spring telescopic rod 47. Sliders 42 are installed on both bottom sides of the movable plate 41, and the sliders 42 are slidably connected to the slide rail 11. A connecting plate 43 is installed on the top left side of the movable plate 41, and the connecting plate 43 is installed and connected to the cylinder 2. A static limiting plate 44 is installed on the left side of the top surface of the movable plate 41, and a movable limiting plate 45 is installed at intervals on the right side of the static limiting plate 44. Both the static limiting plate 44 and the movable limiting plate 45 are U-shaped structures with hollow interiors, and a top plate is installed on the opposite side of the top surface. The right end of the movable limiting plate 45 is connected to the side plate 46 through the first spring telescopic rod 47.
[0025] Preferably, in one embodiment, as shown in FIG4, the clamping member 5 is composed of a base plate 51, a second spring telescopic rod 52, a connecting rod 53, a perforated plate 54, a limiting rod 55, an anti-slip pad 56, and a contact plate 57. The second spring telescopic rod 52 is installed in the middle of the top surface of the base plate 51. The connecting rod 53 is installed on the right side of the telescopic end of the second spring telescopic rod 52. The perforated plate 54 is installed on the right side of the connecting rod 53. The perforated plate 54 has a circular inlet hole inside, and the hole is a bushing placement area. The limiting rod 55 is installed in a circular array on the bottom surface of the perforated plate 54. The limiting rod 55 has an overall L-shaped structure, with its bottom horizontal section extending toward the center point of the perforated plate 54. The inner side of the vertical section of the limiting rod 55... The wall is equipped with an anti-slip pad 56, which has an outer arc surface structure and is made entirely of rubber. A contact plate 57 is installed on the top surface of the second spring telescopic rod 52. During operation, the bushing is inserted from the top of the perforated plate 54 until the bottom of the bushing abuts against the top surface of the horizontal section of the limiting rod 55, so that the outer circumference of the bushing is limited by the anti-slip pad 56, thus completing the positioning of the bushing. By pushing the movable limiting plate 45 to the right, the bottom plate 51 is placed between the static limiting plate 44 and the movable limiting plate 45. After releasing, the movable limiting plate 45 is reset. The bottom plate 51 is quickly limited and fixed by the static limiting plate 44 and the movable limiting plate 45. By starting the cylinder 2, the moving plate 41 is pushed to the right for testing.
[0026] Preferably, in one embodiment, as shown in Figures 2-3, a test piece 3 is installed on the top right side of the workbench 1. The test piece 3 consists of an electrical control box 31, a mounting hole 32, a main rod 33, a wide-angle camera 34, and an auxiliary light 35. The electrical control box 31 is installed on the right end face of the workbench 1. A mounting hole 32 is opened in the middle of the top right side of the workbench 1. The main rod 33 is installed in the mounting hole 32. A wide-angle camera is installed on the top surface of the main rod 33. An auxiliary light 35 is installed on the upper outer periphery of the main rod 33.
[0027] Preferably, in one embodiment, as shown in Figures 1-2, an auxiliary component 6 is mounted above the right end of the slide rail 11. The auxiliary component 6 consists of a top frame 61, an electric push rod 62, and a push plate 63. The electric push rod 62 is mounted on the inner top surface of the top frame 61, and the push plate 63 is mounted on the bottom of the electric push rod 62. During operation, the push plate 41 moves to a position below the top frame 61, at which point the bushing is directly above the main rod 33. The electric push rod 62 drives the push plate 63 to move downward, causing the push plate 63 to abut against the contact plate 57, and pressing down the second spring telescopic rod 52, allowing the interior of the bushing to enter the exterior of the main rod 33. The interior of the bushing is then inspected by the cooperation of the wide-angle camera 34 and the auxiliary light 35.
[0028] Working principle of this utility model:
[0029] During operation, the bushing is inserted from the top of the perforated plate 54 until the bottom of the bushing abuts against the top surface of the horizontal section of the limiting rod 55, so that the outer circumference of the bushing is limited by the anti-slip pad 56, thus completing the positioning of the bushing. By pushing the moving limiting plate 45 to the right, the bottom plate 51 is placed between the static limiting plate 44 and the moving limiting plate 45. After releasing, the moving limiting plate 45 is reset, and the bottom plate 51 is quickly limited and fixed by the static limiting plate 44 and the moving limiting plate 45. By starting the cylinder 2, the moving plate 41 is pushed to the right for testing. The moving plate 41 is moved to the bottom of the top frame 61, at which point the bushing is directly above the main rod 33. The electric push rod 62 drives the push plate 63 to move down, so that the push plate 63 abuts against the contact plate 57, and the second spring telescopic rod 52 is pressed down, so that the inside of the bushing enters the outside of the main rod 33. The bushing is inspected internally by the cooperation of the wide-angle camera 34 and the auxiliary light 35.
[0030] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.
Claims
1. A bushing test fixture structure, characterized in that, include: The workbench, cylinder, detection component, limiting mechanism, clamping component, and auxiliary components are provided. A cylinder is installed on the left side of the top surface of the workbench, and the cylinder is connected to the limiting mechanism. Slide rails are installed at intervals on the top surface of the workbench, and the interior of the slide rails is connected to the limiting mechanism. The limiting mechanism and the clamping component are separately configured.
2. The bushing test fixture structure according to claim 1, characterized in that, The limiting mechanism consists of a moving plate, a slider, a connecting plate, a stationary limiting plate, a moving limiting plate, a side plate, and a first spring telescopic rod. Sliders are installed on the bottom of both sides of the moving plate, and the sliders are slidably connected to the slide rail. A connecting plate is installed on the top left side of the moving plate, and the connecting plate is connected to the cylinder. A stationary limiting plate is installed on the left side of the top surface of the moving plate, and a moving limiting plate is installed at intervals on the right side of the stationary limiting plate. Both the stationary and moving limiting plates are U-shaped structures with hollow interiors, and a top plate is installed on the opposite side of the top surface. The right end of the moving limiting plate is connected to the side plate through the first spring telescopic rod.
3. The bushing test fixture structure according to claim 1, characterized in that, The clamping component consists of a base plate, a second spring telescopic rod, a connecting rod, a perforated plate, a limiting rod, an anti-slip pad, and a contact plate. The second spring telescopic rod is installed in the center of the top surface of the base plate. A connecting rod is installed on the right side of the telescopic end of the second spring telescopic rod. A perforated plate is installed on the right side of the connecting rod. The perforated plate has a circular inlet hole inside, which is a bushing placement area. The limiting rod is installed in a circular array on the bottom surface of the perforated plate. The limiting rod has an L-shaped structure, with its bottom horizontal section extending towards the center point of the perforated plate. An anti-slip pad is installed on the inner side wall of the vertical section of the limiting rod. The anti-slip pad has an outer arc surface structure and is made entirely of rubber. A contact plate is installed on the top surface of the second spring telescopic rod.
4. The bushing test fixture structure according to claim 1, characterized in that, A test piece is installed on the top right side of the workbench. The test piece consists of an electrical control box, a mounting hole, a main rod, a wide-angle camera, and an auxiliary light. The electrical control box is installed on the right end face of the workbench. A mounting hole is opened in the middle of the top right side of the workbench. The main rod is installed in the mounting hole. A wide-angle camera is installed on the top surface of the main rod. An auxiliary light is installed on the upper outer periphery of the main rod.
5. The bushing test fixture structure according to claim 1, characterized in that, An auxiliary component is mounted above the right end of the slide rail. The auxiliary component consists of a top frame, an electric push rod, and a push plate. The electric push rod is mounted on the inner top surface of the top frame, and the push plate is mounted on the bottom of the electric push rod.