Chain wheel positioning machining tool

Abstract

The utility model relates to the technical field of chain wheels, in particular to a chain wheel positioning machining tool which comprises a working table, the interior of the working table is of a hollow structure, two driving mechanisms are symmetrically arranged in the working table, and the driving mechanisms are connected with connecting columns respectively so as to drive the connecting columns to move in the radial direction of a central shaft of the working table. The connecting columns are connected with the positioning columns through movable holes formed in the workbench so that the positioning columns can be clamped between chain teeth of the chain wheel to limit the chain wheel. A plurality of threaded holes are formed in the working table in an array mode, a pressing mechanism for pressing the chain wheel through the threaded holes is arranged on the working table, and a supporting column for supporting the chain wheel is placed on the working table. The positioning columns are driven by the driving mechanism to be clamped between chain teeth of the chain wheel, the chain wheel can be clamped while positioning is conducted, and the chain wheel machining device can be suitable for machining chain wheels of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of sprockets, in particular to a sprocket positioning and processing tool. Background Art

[0002] Traditionally, sprocket machining involves milling the teeth first, then scribing them on a platform, machining keyways on a slotting machine, and drilling or milling slots on a machine tool. In production, if high precision is required for sprocket positioning, traditional processes require milling the teeth before machining keyways, drilling, or milling slots. However, due to the curved tooth surfaces, aligning the sprocket teeth is challenging, making it difficult to guarantee product quality. Furthermore, sprockets come in a wide variety of types and sizes. Utility Model Content

[0003] The utility model aims to solve the above-mentioned defects and provides a sprocket positioning processing tool.

[0004] In order to overcome the defects existing in the background technology, the technical solution adopted by the present invention to solve the technical problem is: a sprocket positioning processing tool, including a workbench, the interior of the workbench is a hollow structure, and two driving mechanisms are symmetrically arranged inside the workbench, the driving mechanisms are respectively connected to the connecting columns to drive the connecting columns to move in the radial direction of the central axis of the workbench, the connecting columns are connected to the positioning columns through movable holes provided on the workbench, so that the positioning columns are clamped between the sprocket teeth to limit the sprocket;

[0005] A plurality of threaded holes are provided on the workbench in an array, and a pressing mechanism for pressing the sprocket using the threaded holes is provided on the workbench. A support column for supporting the sprocket is placed on the workbench.

[0006] A further improvement includes providing ear plates on the outer side of the workbench.

[0007] A further improvement includes providing a semi-open pressing hole on the ear plate.

[0008] A further improvement includes a detachable connection between the connecting column and the positioning column.

[0009] Further improvements include that the driving mechanism includes a cylinder, a slider and a guide rail, the cylinder and the guide rail are installed on the inner wall of the workbench, the output end of the cylinder is connected to the slider, the slider is slidably set on the guide rail, and the slider is connected to the connecting column.

[0010] A further improvement includes providing a central channel axially extending through the center of the workbench.

[0011] Further improvements include that the clamping device includes a pressure plate, a screw and an equal-height column placed on the workbench, one end of the pressure plate is placed on the sprocket and the other end is placed on the equal-height column, the screw passes through the waist-shaped hole axially opened on the pressure plate and is connected to the threaded hole, and a clamping nut is connected to the screw so that the clamping nut clamps the pressure plate.

[0012] The beneficial effect of the utility model is that the design drives the positioning column to be clamped between the sprocket teeth through the driving mechanism, and the sprocket can be clamped at the same time of positioning, and is suitable for slotting, drilling and milling of sprockets of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a top view of the utility model;

[0015] Figure 2 This is an assembly top view of the utility model;

[0016] Figure 3 yes Figure 2 Cross-sectional view of the middle DD;

[0017] Figure 4 This is the front view of the compacting mechanism in the utility model;

[0018] In the figure, 1-ear plate, 2-workbench, 3-center channel, 4-threaded hole, 5-movable hole, 6-positioning column, 7-pressing hole, 8-slider, 9-pressing mechanism, 10-sprocket, 11-cylinder, 12-support column, 13-connecting column, 14-guide rail, 901-equal height column, 902-screw, 903-pressing nut, 904-pressure plate, 905-waist-shaped hole. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. The embodiments of the basic utility model and all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present utility model.

[0020] according to Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, a sprocket positioning tool includes a workbench 2, the interior of the workbench 2 is a hollow structure, and two driving mechanisms are symmetrically arranged inside the workbench 2, the driving mechanisms are respectively connected to the connecting column 13, thereby driving the connecting column 13 to move in the radial direction of the central axis of the workbench 2, and the connecting column 13 is connected to the positioning column 6 through the movable hole 5 opened on the workbench 2, so that the positioning column 6 is clamped between the sprocket teeth of the sprocket 10 to limit the sprocket 10;

[0021] The workbench 2 is provided with a plurality of threaded holes 4 in an array, and a pressing mechanism 9 for pressing the sprocket 10 using the threaded holes 4 is provided on the workbench 2 . A support column 12 for supporting the sprocket 10 is placed on the workbench 2 .

[0022] An ear plate 1 is provided on the outer side of the workbench 2. The workbench 2 is placed on the machine tool, and the ear plate 1 is pressed using a pressure plate to achieve the installation of the workbench 2. In a further embodiment, a semi-open pressing hole 7 is provided on the ear plate 1, so that the screw rod can be conveniently inserted into the pressing hole 7, and then the ear plate 1 can be pressed by installing a gasket on the screw rod and connecting the bolt, thereby improving the installation stability and pressing force.

[0023] The connecting column 13 is detachably connected to the positioning column 6 . This design facilitates replacement of positioning columns 6 with different diameters to accommodate sprockets 10 of different sizes.

[0024] The driving mechanism includes a cylinder 11, a slider 8 and a guide rail 14. The cylinder 11 and the guide rail 14 are installed on the inner wall of the workbench 2. The output end of the cylinder 11 is connected to the slider 8. The slider 8 is slidably set on the guide rail 14. The slider 8 is connected to the connecting column 13. This design is conducive to driving the positioning column 6 to move in the radial direction of the central axis of the workbench 2, so that the positioning column 6 is stuck between the sprocket teeth of the sprocket 10 to limit the sprocket 10.

[0025] A central channel 3 is formed through the central axis of the workbench 2. The central channel 3 can be used to remove chips when fine milling, drilling or milling grooves on the sprocket 10, so as to prevent chips from accumulating on the workbench 2 and affecting normal processing.

[0026] The clamping device includes a pressing plate 904, a screw 902 and a contour column 901 placed on the workbench 2. One end of the pressing plate 904 is placed on the sprocket 10 and the other end is placed on the contour column 901. The screw 902 passes through the waist-shaped hole 905 axially opened on the pressing plate 904 and is connected to the threaded hole 4. The screw 902 is connected to a clamping nut 903 so that the clamping nut 903 presses the pressing plate 904, and then the pressing plate 904 presses the sprocket 10 to ensure stability during surface processing of the sprocket 10.

[0027] Working principle: Place the support column 12 on the workbench 2 according to the shape of the sprocket 10, then place the sprocket 10 on the support column 12, and drive the positioning column 6 and the connecting column 13 to move synchronously through the two driving mechanisms, so that the positioning column 6 is synchronously stuck between the sprocket teeth of the sprocket 10, and then the surface of the sprocket 10 is pressed by the clamping mechanism 9, and the clamping position of the sprocket 10 by the clamping mechanism 9 is located directly above the support position of the support column 12.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sprocket positioning tool, characterized in that: The workbench (2) comprises a hollow structure inside, and two driving mechanisms are symmetrically arranged inside the workbench (2), the driving mechanisms are respectively connected to the connecting column (13) so as to drive the connecting column (13) to move in the radial direction of the central axis of the workbench (2), and the connecting column (13) is connected to the positioning column (6) through the movable hole (5) opened on the workbench (2), so that the positioning column (6) is inserted between the sprocket teeth of the sprocket (10) to limit the sprocket (10); A plurality of threaded holes (4) are provided on the workbench (2) in an array, and a pressing mechanism (9) for pressing the sprocket (10) using the threaded holes (4) is provided on the workbench (2). A support column (12) for supporting the sprocket (10) is placed on the workbench (2).

2. A sprocket positioning tool as claimed in claim 1, characterized in that: An ear plate (1) is provided on the outer side of the workbench (2).

3. The sprocket positioning tool according to claim 1, characterized in that: The connecting column (13) is detachably connected to the positioning column (6).

4. The sprocket positioning tool according to claim 1, characterized in that: The driving mechanism includes a cylinder (11), a slider (8) and a guide rail (14). The cylinder (11) and the guide rail (14) are mounted on the inner wall of the workbench (2). The output end of the cylinder (11) is connected to the slider (8). The slider (8) is slidably arranged on the guide rail (14). The slider (8) is connected to the connecting column (13).

5. The sprocket positioning tool according to claim 1, characterized in that: A central channel (3) is provided through the central axis of the workbench (2).

6. The sprocket positioning tool according to claim 1, characterized in that: The pressing device comprises a pressing plate (904), a screw rod (902) and a height-conforming column (901) placed on the workbench (2); one end of the pressing plate (904) is placed on the sprocket (10) and the other end is placed on the height-conforming column (901); the screw rod (902) passes through a waist-shaped hole (905) axially opened on the pressing plate (904) and is connected to the threaded hole (4); a clamping nut (903) is connected to the screw rod (902) so that the clamping nut (903) clamps the pressing plate (904).

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