Input shaft inner spline cross-bar distance detection tool

Abstract

The utility model relates to a detection device, concretely relates to input shaft inner spline cross bar distance detection frock, including bottom plate and being located on the detection seat and detection table of bottom plate in the detection seat are equipped with the accommodation space and its top board and multiple lateral surfaces are equipped with the opening, the detection table includes dial and telescopic detection rod, and the accommodation space in the detection seat is equipped with fixed probe support and mobile probe support, and the mobile probe support bottom and bottom plate sliding connection, and the end of telescopic detection rod fixed connection in mobile probe support, input shaft inner spline cross bar distance detection frock has the advantages such as convenient operation, high detection efficiency with this scheme.

Description

Technical Field

[0001] This utility model relates to a detection device, specifically a tooling for detecting the span of the spline on an input shaft. Background Technology

[0002] One end of the part's input shaft has an internal spline. After machining, the span of the internal spline needs to be inspected. Existing inspection tools require placing the input shaft into a centering sleeve, with its end face tightly against the locating surface, and locking it in place. Then, the measuring rod is pushed to engage with the spline teeth, and the dial indicator reading is taken. This type of inspection tool not only requires positioning, fixing, and locking the input shaft, but also ensuring that the spline axis is coaxial with the centering sleeve reference. It demands high positioning accuracy and high machining precision from the inspection tool, and the operation is cumbersome, hindering rapid inspection and impacting production efficiency. Summary of the Invention

[0003] The present invention aims to provide a tooling for detecting the span of the internal spline of the input shaft, which enables rapid detection and is easy to operate.

[0004] The input shaft internal spline span detection fixture in this solution includes a base plate and a detection seat and a detection gauge mounted on the base plate. The detection gauge is located on one side of the detection seat. The detection seat has an accommodating space and openings on its top plate and multiple sides. The detection gauge includes a dial and a telescopic detection rod. The accommodating space in the detection seat contains a fixed probe support rod and a movable probe bracket. The bottom of the movable probe bracket is slidably connected to the base plate. The end of the telescopic detection rod is fixedly connected to the movable probe bracket. The tops of the fixed probe support rod and the movable probe bracket extend from the openings in the top plate of the detection seat and are each fixedly equipped with a detection head.

[0005] The testing base has a space to accommodate and install the fixed probe support rod and the movable probe bracket. An opening on the top surface of the testing base allows the ends of the fixed probe support rod and the movable probe bracket to be exposed, and provides space for the movable probe bracket to move. The testing gauge is connected to the movable probe bracket, so the distance the movable probe bracket moves is the extension distance of the testing gauge's telescopic testing rod. After the end face of the workpiece being tested is placed against the upper surface of the testing base, the movable probe bracket is pushed to the stop position, and the inner diameter value can be displayed by reading the testing gauge.

[0006] Furthermore, a first slot is provided in one side panel of the detection base, the top of the first slot extending to the opening end of the top plate of the detection base. The rod of the fixed probe support is engaged in the first slot and fixedly connected to the side wall of the detection base by adjusting screws. The first slot facilitates quick positioning and installation of the fixed probe support after adjustment, disassembly, and replacement.

[0007] Furthermore, the movable probe bracket includes a slide, a fixed frame, and a movable probe support rod. A linear guide rail is fixedly provided on the base plate. The slide is slidably engaged with the linear guide rail. The fixed frame is fixedly mounted on the slide. The movable probe support rod is fixedly connected to the fixed frame. The end of the telescopic detection rod is fixedly connected to the fixed frame of the movable probe bracket.

[0008] Furthermore, the fixed probe support rod has several connecting holes spaced at equal intervals.

[0009] Furthermore, a second slot is provided on one side of the fixed frame, and the rod of the movable probe support is locked in the second slot. Several connecting holes are provided at equal intervals on the rod of the movable probe support, and one of the connecting holes of the movable probe support is connected to the fixed frame through a screw.

[0010] Furthermore, the test gauge is mounted on a frame, the bottom of the frame is fixed to the base plate, and the top of the frame is provided with a pressure plate. One end of the pressure plate is connected to the top of the frame and includes a fixing hole. Half of the fixing hole is located on the frame and the other half is located on the pressure plate. The free end of the pressure plate is provided with a clamping bolt to the frame. The fixing rod of the telescopic test rod is located in the fixing hole.

[0011] Furthermore, the movable probe bracket is fixedly connected to a movable handle, which extends out from the detection seat.

[0012] Furthermore, a return spring is provided between the fixed probe support rod and the movable probe bracket.

[0013] Furthermore, the test gauge is a dial gauge or a per mille gauge.

[0014] The advantages of this utility model are: the input shaft internal spline span detection fixture designed with this solution can realize rapid detection of the input shaft internal spline span, and is easy to operate. It eliminates the need for workpiece center positioning, installation, locking, and disassembly, thus shortening the detection time and improving the detection efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of the spline span detection fixture for the input shaft of this utility model. Figure 2 This is a top view of the spline span detection fixture for the input shaft of this utility model; Figure 3 for Figure 2 Sectional view of AA; Figure 4 This is a schematic diagram of the structure of the movable probe bracket in the spline span detection fixture of the input shaft of this utility model; Figure 5 This is a schematic diagram from another perspective of the moving probe bracket in the spline span detection fixture of the input shaft of this utility model. Figure 6 This is a schematic diagram of the structure of the gauge holder in the spline span detection fixture of the input shaft of this utility model.

[0016] 1 is the base plate, 2 is the detection seat, 2-1 is the side panel, 2-2 is the column, 2-3 is the top plate, 3 is the dial, 4 is the telescopic detection rod, 5 is the dial holder, 5-1 is the pressure plate, 5-2 is the fixing hole, 5-3 is the clamping bolt, 6 is the fixed probe support rod, 6-1 is the adjusting screw, 7 is the movable probe bracket, 7-1 is the slide, 7-2 is the fixing frame, 7-3 is the movable probe support rod, 7-4 is the linear guide rail, 8 is the first slot, 9 is the second slot, 10 is the moving handle, 11 is the detection head, and 12 is the return spring. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: according to Figures 1 to 6 As shown, the input shaft spline span detection fixture in this solution includes a base plate 1, a detection seat 2 and a detection gauge mounted on the base plate 1. The detection gauge is located on one side of the detection seat 2. The detection seat 2 has an accommodating space inside, and its top plate 2-3 and multiple sides have openings. In this embodiment, the detection seat 2 consists of a side panel 2-1, two columns 2-2, and a top plate 2-3. It has a cubic shape and an internal hollow accommodating space. An opening is provided on its top surface, starting from the side panel 2-1 and pointing towards the plane where the two columns 2-2 are located.

[0018] The test gauge includes a dial 3 and a telescopic test rod 4. The test gauge can be a dial indicator or a micrometer; in this embodiment, a micrometer is used. The test gauge is mounted on a frame 5, which is fixed to a base plate 1 at its bottom. A pressure plate 5-1 is located at the top of the frame 5. One end of the pressure plate 5-1 is integrally formed with the top end of the frame 5. The frame 5-1 also includes a fixing hole 5-2, with one half located in the frame 5 and the other half corresponding to the pressure plate 5-1. A clamping bolt 5-3 is provided between the free end of the pressure plate 5-1 and the frame 5. The fixing rod of the telescopic test rod 4 is located within the fixing hole 5-2.

[0019] The detection seat 2 has a fixed probe support rod 6 and a movable probe bracket 7 in its accommodating space. The side panel 2-1 of the detection seat 2 has a first slot 8, the top of which extends to the opening end of the top plate 2-3 of the detection seat 2. The rod of the fixed probe support rod 6 is locked in the first slot 8.

[0020] The fixed probe support rod 6 has several connecting holes spaced evenly. The side wall of the detection seat 2 is fixedly connected to one of the connecting holes by adjusting screws 6-1. The first slot 8 is provided to facilitate quick positioning and installation of the fixed probe support rod 6 after adjustment, disassembly, and replacement. The multiple connecting holes allow for adjustment of the fixed height of the fixed probe support rod 6 to accommodate other workpieces of different types and sizes.

[0021] The bottom of the movable probe bracket 7 is slidably connected to the base plate 1, and the end of the telescopic detection rod 4 is fixedly connected to the movable probe bracket 7. In this embodiment, the movable probe bracket 7 includes a slide 7-1, a fixing frame 7-2 and a movable probe support rod 7-3. A linear guide rail 7-4 is fixedly provided on the base plate 1. The slide 7-1 and the linear guide rail 7-4 are slidably engaged. The fixing frame 7-2 is fixedly screwed onto the slide 7-1.

[0022] The movable probe support rod 7-3 is fixedly connected to the fixed frame 7-2. In this embodiment, a second slot 9 is provided on one side of the fixed frame 7-2, and the rod body of the movable probe support rod 7-3 is engaged in the second slot 9. Several connecting holes are provided at equal intervals on the rod body of the movable probe support rod 7-3, and one of the connecting holes of the movable probe support rod 7-3 is connected to the fixed frame 7-2 through a screw. The telescopic rod end of the telescopic detection rod 4 is fixedly connected to the fixed frame 7-2 of the movable probe bracket 7 with screws. The movable probe bracket 7 is also fixedly connected to an L-shaped movable handle 10 with screws, and the free end of the movable handle 10 extends out from one side inside the detection seat 2.

[0023] The movable probe support rod 7-3 and the fixed probe support rod 6 have the same structure and the same arrangement of connecting holes, both including three connecting holes. The top ends of both the movable probe support rod 7-3 and the fixed probe support rod 6 extend from the top opening of the detection seat 2 and are both fitted with a detection head 11 via an interference fit. The two detection heads 11 are oriented towards each other. A return spring 12 is provided between the movable probe support rod 7-3 and the fixed probe support rod 6.

[0024] The testing base 2 has a space for accommodating and installing the fixed probe support rod 6 and the movable probe bracket 7. The top surface of the testing base 2 is open, allowing the ends of the fixed probe support rod 6 and the movable probe bracket 7 to be exposed, and providing space for the movable probe bracket 7 to move. The testing gauge is connected to the movable probe bracket 7, so the moving distance of the movable probe bracket 7 is the extension distance of the telescopic testing rod 4 of the testing gauge. After the end face of the workpiece being tested is placed against the upper surface of the testing base 2, the movable probe bracket 7 is pushed to the stop position, and the inner diameter value can be displayed by reading the testing gauge.

[0025] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. An input shaft internal spline cross-bar distance detection tool, characterized by: The device includes a base plate and a detection seat and a detection gauge mounted on the base plate. The detection gauge is located on one side of the detection seat. The detection seat has an accommodating space and openings on its top plate and multiple sides. The detection gauge includes a dial and a telescopic detection rod. The accommodating space inside the detection seat contains a fixed probe support rod and a movable probe bracket. The bottom of the movable probe bracket is slidably connected to the base plate. The end of the telescopic detection rod is fixedly connected to the movable probe bracket. The tops of the fixed probe support rod and the movable probe bracket extend from the openings in the top plate of the detection seat and are each fixedly fitted with a detection head.

2. The input shaft internal spline span detection fixture according to claim 1, characterized in that: The detection base has a first slot in one side panel, the top of the first slot extends to the opening end of the top plate of the detection base, and the rod of the fixed probe support is locked in the first slot and fixedly connected to the side wall of the detection base by adjusting screws.

3. The input shaft inner spline cross-bar distance detection tool of claim 1, wherein: The movable probe bracket includes a slide, a fixed frame, and a movable probe support rod. A linear guide rail is fixedly provided on the base plate. The slide is slidably engaged with the linear guide rail. The fixed frame is fixedly mounted on the slide. The movable probe support rod is fixedly connected to the fixed frame. The end of the telescopic detection rod is fixedly connected to the fixed frame of the movable probe bracket.

4. The input shaft inner spline cross-bar distance detection tool of claim 2, wherein: The fixed probe support rod has several connecting holes at equal intervals on its body.

5. The input shaft inner spline cross-bar distance detection tool of claim 3, wherein: The fixed frame has a second slot on one side, and the rod of the movable probe support is locked in the second slot. The rod of the movable probe support has several connecting holes at equal intervals, and one of the connecting holes of the movable probe support is connected to the fixed frame by a screw. ​ 6. The input shaft inner spline cross-bar distance detection tool of claim 1, wherein: The test gauge is mounted on a frame, the bottom of which is fixed to the base plate. A pressure plate is provided on the top of the frame, one end of which is connected to the top of the frame. The pressure plate also includes a fixing hole, half of which is located on the frame and the other half on the pressure plate. A clamping bolt is provided between the free end of the pressure plate and the frame. The fixing rod of the telescopic test rod is located in the fixing hole.

7. The input shaft inner spline cross-stub detection tool of claim 1, wherein: The movable probe bracket is fixedly connected to a movable handle, which extends out from the detection base.

8. The input shaft inner spline cross-stub detection tool of claim 7, wherein: A return spring is provided between the fixed probe support rod and the movable probe bracket.

9. The input shaft inner spline cross-stub detection tool of claim 1, wherein: The test gauge is a dial gauge or a per mille gauge.

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