Machining tool for wedge-shaped key groove of chain wheel

Abstract

The utility model relates to a chain wheel wedge-shaped key groove machining tool which comprises a bottom plate, an inclined plate is fixedly arranged on the bottom plate, a base plate is arranged between the bottom of one end of the inclined plate and the bottom plate in a cushioned mode so that the upper end face of the inclined plate can incline, a containing hole is formed in the middle of the inclined plate, and two sets of limiting rods which vertically protrude to abut against the end of a chain wheel are symmetrically arranged on the upper surface of the inclined plate. The inclined plate is provided with a threaded hole allowing a bolt to penetrate through the chain wheel to be screwed and fastened. The machining tool for the wedge-shaped key groove of the chain wheel is simple in structure, convenient to use and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chain wheel wedge keyway processing frock. BACKGROUND

[0002] The existing chain wheel needs to process the keyway at the chain wheel shaft hole position after production, at present, most chain wheels are punched out by the punch, and some are milled out by the milling cutter, in order to adapt to the wedge key, the keyway with the slope needs to be milled, the milling cutter is generally straight up and straight down and cannot mill obliquely, the oblique milling is difficult and is prone to damage and the risk of broken cutter, and repeated adjustment is also relatively cumbersome, which is not conducive to efficient processing, and improvement is urgently needed. SUMMARY

[0003] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a chain wheel wedge keyway processing frock, which is not only reasonable in structure, but also convenient and efficient.

[0004] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a chain wheel wedge keyway processing frock, including a bottom plate, a slope plate is fixedly arranged on the bottom plate, a pad plate is arranged between the bottom of one end of the slope plate and the bottom plate to make the upper end surface of the slope plate inclined, a containing hole is formed in the middle of the slope plate, two groups of vertical protrusions are symmetrically arranged on the upper surface of the slope plate to top the limiting rods of the end portions of the chain wheel, and screw holes are formed in the slope plate for screwing and fastening the bolts after penetrating the chain wheel.

[0005] Further, the slope plate is fixedly connected with the bottom plate, the cross section of the pad plate is a right trapezoid, and the upper end and the lower end of the pad plate are respectively welded and fixed with the slope plate and the bottom plate.

[0006] Further, a plurality of through holes are formed in the chain wheel in an annular array shape for the bolts to penetrate.

[0007] Further, a partition plate is arranged between the bolts and the chain wheel to prevent scratching the chain wheel, and a strip-shaped hole is formed in the partition plate for the bolt to penetrate.

[0008] Further, a workbench is arranged at the lower end of the bottom plate, a plurality of parallel positioning grooves are concavely arranged on the upper surface of the workbench, the cross sections of the positioning grooves are all in the shape of a Chinese character "K", the two ends of each positioning groove penetrate the workbench, a sliding block is slidably connected in each positioning groove, and a screw hole is formed in the bottom plate and the sliding block and is fastened and positioned by a bolt.

[0009] Further, a collecting groove is coaxially fixedly connected outside the workbench, and the collecting groove and the positioning groove are both communicated.

[0010] Further, a milling cutter for milling the keyway is vertically arranged above the slope plate.

[0011] Compared with the existing technology, the utility model has the following beneficial effects: the inclined plate is placed at a certain inclination angle through the pad, and a wedge-shaped keyway is naturally formed by milling, which is safer and more stable, and also increases the processing efficiency. The sprocket can be quickly positioned to the milling position by setting a limit rod, and the partition can effectively avoid damage to the sprocket. The overall structure is simple, convenient and efficient.

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0015] Figure 3 A schematic top view of an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the sprocket in the embodiment of the present utility model;

[0017] Figure 5 Schematic diagram of the working state of an embodiment of the present utility model.

[0018] In the figure: 1-base plate, 2-inclined plate, 3-pad, 4-accommodating hole, 5-limiting rod, 6-bolt, 7-sprocket, 8-threaded hole, 9-through hole, 10-partition, 11-strip hole, 12-workbench, 13-positioning groove, 14-slider, 15-screw hole, 16-collecting groove, 17-milling cutter, 18-keyway. DETAILED DESCRIPTION

[0019] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description.

[0020] like Figures 1-5 As shown, the sprocket wedge keyway processing tooling includes a base plate 1, on which an inclined plate 2 is fixedly provided, and a pad 3 is provided between the bottom of one end of the inclined plate and the base plate to tilt the upper end surface of the inclined plate, and an accommodating hole 4 is provided in the middle of the inclined plate, and two groups of vertically protruding limiting rods 5 are symmetrically provided on the upper surface of the inclined plate to top the sprocket end, and the limiting rods are all screwed on the inclined plate, and the inclined plate is provided with a threaded hole 8 for the bolt 6 to pass through the sprocket 7 and then be screwed and tightened.

[0021] In an embodiment of the present invention, the inclined plate is fixedly connected to the bottom plate, the cross section of the pad is a right-angled trapezoid, and the upper and lower ends of the pad are respectively welded and fixed to the inclined plate and the bottom plate.

[0022] In the embodiment of the utility model, the chain wheel is provided with a plurality of through holes 9 for bolts in annular array.

[0023] In the embodiment of the utility model, the bolt and the chain wheel are provided with a baffle 10 for preventing the chain wheel from being scratched, and the baffle is provided with a strip-shaped hole 11 for the bolt.

[0024] In the embodiment of the utility model, the bottom plate is provided with a workbench 12 at the lower end, and the upper surface of the workbench is concave downward and provided with a plurality of parallel positioning grooves 13, the cross section of each positioning groove is in the shape of a Chinese character "KU", and the two ends of each positioning groove pass through the workbench, each positioning groove is slidably connected with a sliding block 14, and the sliding block and the bottom plate are both provided with a screw hole 15 corresponding to each other and are fastened and positioned by a bolt.

[0025] In the embodiment of the utility model, the workbench is coaxially and fixedly connected with a collecting groove 16, and the collecting groove is communicated with the positioning groove.

[0026] In the embodiment of the utility model, a milling cutter 17 for milling a key groove is vertically arranged above the inclined plate.

[0027] The working principle of the embodiment of the utility model is as follows: when used, first, the bottom plate and the inclined plate are placed above the workbench and positioned, and then the bolt is fastened and fixed, then the chain wheel to be milled is hoisted and placed on the surface of the inclined plate, the chain wheel is pushed to make the wheel shaft part of the chain wheel abut on the two limiting rods, finally, the chain wheel is rotated to the appropriate position, the baffle is placed on the through hole, then the bolt is passed through the strip-shaped hole and the through hole and screwed into the screw hole to complete the fixation of the chain wheel, at this time, the chain wheel is consistent with the inclined plate and is in an inclined state, the milling cutter is lowered to mill the wedge-shaped key groove 18, and the milling cutter only needs to be vertically moved to mill, which is more convenient and efficient.

[0028] The utility model is not limited to the above-mentioned best embodiment, and anyone can derive other various forms of chain wheel wedge-shaped key groove processing tool under the inspiration of the utility model. Any equivalent changes and modifications made within the scope of the utility model application for patent shall be covered by the utility model.

Claims

1. A sprocket wedge keyway machining tool, characterized in that: The utility model provides a chain wheel fixing device, including bottom plate, the inclined plate is fixed on the bottom plate, the bottom of one end of inclined plate and the bottom plate between pad sets up the pad to make the upper end surface of inclined plate lean, the middle part of inclined plate is set up and holds the hole, the upper surface of inclined plate is provided with two groups of vertical convexes of symmetrical arrangement to the limit rod of the top link wheel end, the inclined plate is set up and has the threaded hole for the bolt to pass through the chain wheel and is screwed and fastens after.

2. The sprocket wedge keyway machining tooling fixture of claim 1, wherein: The inclined plate is fixed with the bottom plate, the cross section of the pad is right angle trapezoid, and the upper and lower ends of the pad are respectively welded and fixed with the inclined plate and the bottom plate.

3. The sprocket wedge keyway machining tooling fixture of claim 1, wherein: A plurality of through holes for the bolt to pass through are arranged in an annular array on the chain wheel.

4. The sprocket wedge keyway machining tooling fixture of claim 1, wherein: A partition plate is arranged between the bolt and the chain wheel, and a strip-shaped hole for the bolt to pass through is arranged on the partition plate.

5. The sprocket wedge keyway machining tooling fixture of claim 1, wherein: A workbench is arranged at the lower end of the bottom plate, and a plurality of parallel positioning grooves are concavely arranged on the upper surface of the workbench, the cross section of each positioning groove is in the shape of a Chinese character '''', the two ends of each positioning groove pass through the workbench, a sliding block is slidably connected in each positioning groove, and a screw hole is arranged in the bottom plate corresponding to the sliding block and is fastened and positioned by a bolt.

6. The sprocket wedge keyway machining tooling fixture of claim 5, wherein: A collecting groove is coaxially arranged outside the workbench and communicates with the positioning grooves.

7. The sprocket wedge keyway machining tooling fixture of claim 1, wherein: A milling cutter for milling a key groove is vertically arranged above the inclined plate.

Images