Motorcycle crankshaft drill pin hole fixture

Abstract

The utility model relates to the technical field of crankshaft processing, specifically relates to motorcycle crankshaft drills handle pin hole anchor clamps, including base and two clamping mechanisms, and clamping mechanism includes power pack no.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft machining technology, and in particular to a jig for drilling crank pin holes in motorcycle crankshafts. Background Technology

[0002] In the production of motorcycle crankshafts, the machining accuracy of the crankpin holes is crucial, directly affecting the motorcycle's performance and lifespan. Traditional machining methods often employ single-piece processing, which is inefficient and cannot meet the ever-increasing production demands. Furthermore, when changing to different crankshaft models, fixture adjustments are complex and cumbersome, requiring the recalibration and adjustment of multiple components, consuming significant time and manpower, leading to increased production costs and severely impacting the company's market competitiveness.

[0003] While some existing fixtures can clamp and position crankshafts, they lack precision in positioning and clamping stability. For example, during machining, some fixtures can cause workpiece displacement due to uneven force or inaccurate positioning, resulting in substandard dimensional and positional accuracy of the machined holes. This leads to a higher defect rate, increased production costs, and greater difficulty in quality control, making it impossible to efficiently and accurately meet the machining requirements of motorcycle crankshaft crank pin holes. Utility Model Content

[0004] The purpose of this utility model is to provide a jig for drilling crank pin holes in motorcycle crankshafts, which aims to solve the problem of low machining accuracy caused by unstable positioning of existing jigs.

[0005] To achieve the above objectives, this utility model provides a crankshaft drilling crank pin hole clamp, including a base and two clamping mechanisms. The clamping mechanism includes a power component one, a push rod assembly, a cone sleeve assembly, and a power component two. The power component one is mounted on the base, the push rod assembly is mounted on one side of the power component one, the cone sleeve assembly is mounted on the base, and the power component two is mounted on the base and connected to the cone sleeve assembly.

[0006] The base includes a base plate, an upright plate, and an upper support plate. The upright plate is fixedly connected to the base plate and is located on one side of the base plate. The upper support plate is fixedly connected to the upright plate and is located on the side of the upright plate away from the base plate.

[0007] The power assembly includes a cylinder, a cylinder mounting base, a linear guide rail, and a movable slider. The cylinder mounting base is fixedly connected to the upper support plate and is located on the upper support plate. The cylinder is fixedly connected to the cylinder mounting base and is located on one side of the cylinder mounting base. The linear guide rail is fixedly connected to the upper support plate and is located on the upper support plate. The movable slider is slidably connected to the linear guide rail and is located on the linear guide rail.

[0008] The push rod assembly includes a push rod fixing block and a push rod body. The push rod fixing block is fixedly connected to the movable slider and to the output end of the first cylinder. The push rod body is fixedly connected to the push rod fixing block and is located on the side of the push rod fixing block away from the first cylinder.

[0009] The conical sleeve assembly includes a conical sleeve fixing seat, a conical sleeve body, and a conical sleeve pull tube. The conical sleeve fixing seat is fixedly connected to the upper support plate and is located on the upper support plate. The conical sleeve body is installed on the conical sleeve fixing seat, and the conical sleeve pull tube is installed on the side of the conical sleeve fixing seat near the conical sleeve body.

[0010] The second power assembly includes a shaft pin, a pressure plate, a hinge body, a hinge support plate, and a second cylinder. The pressure plate is connected to the tapered sleeve cylinder via the pin. The hinge support plate is fixedly connected to the second cylinder and located on one side of the second cylinder. The hinge body is rotatably connected to the hinge support plate and also rotatably connected to the pressure plate. The second cylinder is fixedly connected to the upper support plate, and its output end is rotatably connected to the pressure plate.

[0011] This utility model discloses a crankshaft drilling crank pin hole fixture. The base provides installation conditions for the two clamping mechanisms. When the workpiece needs to be processed, the workpiece is placed in the tapered sleeve assembly. The first power component is activated, which drives the push rod assembly to move closer to the tapered sleeve assembly until the push rod assembly contacts and holds the workpiece on the tapered sleeve assembly. The second power component drives the tapered sleeve assembly to move downward and tighten, thereby clamping the workpiece on the tapered sleeve assembly. This utility model can process two products at once, and process them simultaneously, which is highly efficient. The push rod assembly and the tapered sleeve assembly can be adjusted and replaced according to actual needs, thus solving the problem of low processing accuracy caused by unstable positioning of existing fixtures. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the structure of the motorcycle crankshaft drilling crank pin hole fixture of this utility model.

[0014] Figure 2 This is a schematic diagram of the clamping mechanism.

[0015] Figure 3 yes Figure 2 A sectional view.

[0016] In the diagram: 1-Base plate, 2-Upright plate, 3-Upper support plate, 4-Cylinder 1, 5-Cylinder fixing seat, 6-Linear guide rail, 7-Moving slider, 8-Top rod fixing block, 9-Top rod body, 10-Conical sleeve body, 11-Conical sleeve fixing seat, 12-Conical sleeve pull tube, 13-Shaft pin, 14-Pressure plate, 15-Hinge body, 16-Hinge support plate, 17-Cylinder 2. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figures 1-3 This utility model provides a crankshaft drilling crank pin hole clamp for motorcycles, including a base and two clamping mechanisms. The clamping mechanism includes a power component one, a push rod assembly, a cone sleeve assembly and a power component two. The first power assembly is mounted on the base, the top rod assembly is mounted on one side of the first power assembly, the conical sleeve assembly is mounted on the base, and the second power assembly is mounted on the base and connected to the conical sleeve assembly.

[0019] In this embodiment, the base provides installation conditions for the two clamping mechanisms. When the workpiece needs to be processed, the workpiece is placed into the tapered sleeve assembly, and the first power component is activated. The first power component drives the push rod assembly to move towards the side closer to the tapered sleeve assembly until the push rod assembly contacts the workpiece on the tapered sleeve assembly and holds it. The second power component drives the tapered sleeve assembly to move downward and tighten, thereby clamping the workpiece on the tapered sleeve assembly. This utility model can process two products at once, and process them simultaneously, which is highly efficient. The push rod assembly and the tapered sleeve assembly can be adjusted and replaced according to actual needs, thereby solving the problem of low processing accuracy caused by unstable positioning of existing fixtures.

[0020] Furthermore, the base includes a base plate 1, a vertical plate 2, and an upper support plate 3. The vertical plate 2 is fixedly connected to the base plate 1 and is located on one side of the base plate 1. The upper support plate 3 is fixedly connected to the vertical plate 2 and is located on the side of the vertical plate 2 away from the base plate 1.

[0021] In this embodiment, the base serves as the fundamental support structure for the entire fixture, comprising the base plate 1, the upright plate 2, and the upper support plate 3. The base plate 1 is used for the installation and fixation of the entire fixture. The upright plate 2 is vertically and fixedly connected to the base plate 1, serving to support the upper structure. The upper support plate 3 provides an installation platform for each functional component, ensuring stable installation and precise positioning of each part, which is crucial for the overall structural stability of the fixture.

[0022] Furthermore, the power assembly includes a cylinder 4, a cylinder mounting base 5, a linear guide rail 6, and a movable slider 7. The cylinder mounting base 5 is fixedly connected to the upper support plate 3 and is located on the upper support plate 3. The cylinder 4 is fixedly connected to the cylinder mounting base 5 and is located on one side of the cylinder mounting base 5. The linear guide rail 6 is fixedly connected to the upper support plate 3 and is located on the upper support plate 3. The movable slider 7 is slidably connected to the linear guide rail 6 and is located on the linear guide rail 6.

[0023] In this embodiment, when the cylinder 4 starts to push out, the connecting structure drives the push rod fixing block 8 to move along the linear guide rail 6 on the movable slider 7, thereby realizing the precise positioning action of the push rod assembly.

[0024] Furthermore, the push rod assembly includes a push rod fixing block 8 and a push rod body 9. The push rod fixing block 8 is fixedly connected to the movable slider 7 and fixedly connected to the output end of the cylinder 4. The push rod body 9 is fixedly connected to the push rod fixing block 8 and is located on the side of the push rod fixing block 8 away from the cylinder 4.

[0025] In this embodiment, when the cylinder 4 is pushed out, the push rod body 9 moves together with the push rod fixing block 8 and the moving slider 7, and finally the push rod body 9 presses against the positioning surface of the workpiece, so that the workpiece maintains a stable position during processing.

[0026] Furthermore, the conical sleeve assembly includes a conical sleeve fixing seat 11, a conical sleeve body 10, and a conical sleeve pull tube 12. The conical sleeve fixing seat 11 is fixedly connected to the upper support plate 3 and is located on the upper support plate 3. The conical sleeve body 10 is installed on the conical sleeve fixing seat 11, and the conical sleeve pull tube 12 is installed on the side of the conical sleeve fixing seat 11 close to the conical sleeve body 10.

[0027] In this embodiment, the tapered sleeve fixing seat 11 is mounted on the upper support plate 3, the tapered sleeve body 10 is mounted on the tapered sleeve fixing seat 11, and the tapered sleeve pull cylinder 12 is located on the side of the tapered sleeve fixing seat 11 close to the tapered sleeve body 10 and cooperates with it. When the workpiece is inserted into the tapered sleeve body 10, and clamping is required, the tapered sleeve pull cylinder 12 pulls the tapered sleeve body 10 under the drive of the power component two, so that the tapered surface of the tapered sleeve body 10 fits against the tapered surface on the tapered sleeve fixing seat 11. Under the action of continuous pulling force, the opening of the tapered sleeve body 10 contracts inward, thereby clamping the workpiece.

[0028] Furthermore, the second power assembly includes a shaft pin 13, a pressure plate 14, a hinge body 15, a hinge support plate 16, and a second cylinder 17. The pressure plate 14 is connected to the tapered sleeve pull cylinder 12 via the pin. The hinge support plate 16 is fixedly connected to the second cylinder 17 and is located on one side of the second cylinder 17. The hinge body 15 is rotatably connected to the hinge support plate 16 and rotatably connected to the pressure plate 14. The second cylinder 17 is fixedly connected to the upper support plate 3, and its output end is rotatably connected to the pressure plate 14.

[0029] In this embodiment, the hinge support plate 16 provides the installation conditions for the hinge body 15. When the cylinder 17 retracts, the cone sleeve 12 is pulled downward by the linkage of the pressure plate 14, the shaft pin 13, and the hinge body 15, thereby driving the cone sleeve body 10 to clamp the workpiece.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A crankshaft drilling fixture for motorcycle crankpin holes, characterized in that, It includes a base and two clamping mechanisms, wherein the clamping mechanism includes a power component one, a push rod assembly, a cone sleeve assembly and a power component two; The first power assembly is mounted on the base, the top rod assembly is mounted on one side of the first power assembly, the conical sleeve assembly is mounted on the base, and the second power assembly is mounted on the base and connected to the conical sleeve assembly.

2. The motorcycle crankshaft crank pin hole drilling fixture as described in claim 1, characterized in that, The base includes a base plate, an upright plate, and an upper support plate. The upright plate is fixedly connected to the base plate and is located on one side of the base plate. The upper support plate is fixedly connected to the upright plate and is located on the side of the upright plate away from the base plate.

3. The motorcycle crankshaft crank pin hole drilling fixture as described in claim 2, characterized in that, The power assembly includes a cylinder, a cylinder mounting base, a linear guide rail, and a movable slider. The cylinder mounting base is fixedly connected to the upper support plate and is located on the upper support plate. The cylinder is fixedly connected to the cylinder mounting base and is located on one side of the cylinder mounting base. The linear guide rail is fixedly connected to the upper support plate and is located on the upper support plate. The movable slider is slidably connected to the linear guide rail and is located on the linear guide rail.

4. The motorcycle crankshaft crank pin hole drilling fixture as described in claim 3, characterized in that, The push rod assembly includes a push rod fixing block and a push rod body. The push rod fixing block is fixedly connected to the movable slider and to the output end of the first cylinder. The push rod body is fixedly connected to the push rod fixing block and is located on the side of the push rod fixing block away from the first cylinder.

5. The motorcycle crankshaft crank pin hole drilling fixture as described in claim 2, characterized in that, The tapered sleeve assembly includes a tapered sleeve fixing seat, a tapered sleeve body, and a tapered sleeve pull tube. The tapered sleeve fixing seat is fixedly connected to the upper support plate and is located on the upper support plate. The tapered sleeve body is installed on the tapered sleeve fixing seat, and the tapered sleeve pull tube is installed on the side of the tapered sleeve fixing seat near the tapered sleeve body.

6. The motorcycle crankshaft crank pin hole drilling fixture as described in claim 5, characterized in that, The second power assembly includes a shaft pin, a pressure plate, a hinge body, a hinge support plate, and a second cylinder. The pressure plate is connected to the tapered sleeve cylinder via the shaft pin. The hinge support plate is fixedly connected to the second cylinder and located on one side of the second cylinder. The hinge body is rotatably connected to the hinge support plate and also rotatably connected to the pressure plate. The second cylinder is fixedly connected to the upper support plate, and its output end is rotatably connected to the pressure plate.

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