Broaching machine labor-saving mechanism for large impeller key groove machining

Abstract

The broaching machine labor-saving mechanism comprises a bottom plate, a main shaft is installed on the bottom plate through a shaft seat, a rotating component is connected to the main shaft in a sleeved mode, heightening blocks are fixedly connected to the positions, on the two sides of the main shaft, of the bottom plate, and column components with external threads are connected to the heightening blocks in a threaded mode through screw holes with internal threads. When the height of the column component is smaller than that of the rotating component, the labor-saving mechanism is in a movable state, and when the height of the column component is larger than that of the rotating component, the labor-saving mechanism is in a fixed state. By means of the labor-saving mechanism, rolling friction exists between the impeller and the broaching machine, friction force is obviously reduced, and therefore labor is saved during positioning operation between the impeller and a broaching machine tool bit, and labor burden and safety risks of workers are relieved. The device is simple in structure and convenient to mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of broaching machine for impeller machining, especially a broaching machine labor-saving mechanism for large impeller key groove machining. BACKGROUND

[0002] When cutting the key groove of the large impeller, a vertical broaching machine is usually used. The large impeller is laid horizontally on the vertical broaching machine, and the key groove is cut on the inner edge of the impeller by repeatedly lifting the cutter head. Because the diameter of the large impeller is large and the weight is heavy, and the surface of the impeller is a rough blank, the friction between the impeller and the broaching machine is very large. The impeller can be placed on the broaching machine by a crane, but the positioning between the impeller key groove and the broaching machine cutter head is still achieved by manually rotating the impeller. The large friction makes the process of rotating the impeller very laborious, which not only increases the labor intensity, but also increases the risk of safety accidents for workers. SUMMARY

[0003] The purpose of the present application is to provide a broaching machine labor-saving mechanism for large impeller key groove machining, which aims to solve the problems existing in the prior art.

[0004] The present application provides a broaching machine labor-saving mechanism for large impeller key groove machining, which includes a base plate, a main shaft mounted on the base plate through a shaft seat, a rotating member sleeved on the main shaft, a pad block fixedly connected to the base plate on both sides of the main shaft, and a column member with external threads threadedly connected to the pad block through a screw hole with internal threads.

[0005] Further, the main shaft is two, the two main shafts are parallel to each other, and two rotating members are sleeved on each main shaft, and the two rotating members are separated by a check ring.

[0006] Further, two column members are provided on each pad block, and the pad block is fixed between the two shaft seats.

[0007] Further, a flat key is fixedly connected to the bottom of the base plate, the extension direction of the flat key is the same as that of the main shaft, and the labor-saving mechanism is positioned in the T-shaped groove of the broaching machine through the flat key.

[0008] Further, a rotating plate is rotatably sleeved on the track rod of the broaching machine, the labor-saving mechanism is placed below the rotating plate, and the rotating plate abuts against the rotating member.

[0009] Further, two first positioning columns and one second positioning column are fixedly connected to the rotating plate in a triangular shape; the two first positioning columns are located on both sides of the track rod, and the back surface of the first positioning column is flush with the back surface of the track rod.

[0010] The utility model discloses a beneficial effect is: through the utility model labour -saving mechanism makes the impeller and broaching machine between the rolling friction, the friction force is reduced significantly, thereby make the positioning operation between the impeller and broaching machine cutter head more laborsaving, alleviate the worker's labor burden and safety risk. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the overall structure schematic diagram of the utility model labour -saving mechanism.

[0012] Figure 2 It is the explosion structure schematic diagram of the utility model labour -saving mechanism.

[0013] Figure 3 It is the structure schematic diagram of labour -saving mechanism on the positioning of broaching machine.

[0014] Figure 4 It is the use state schematic diagram of labour -saving mechanism when processing large impeller.

[0015] In the drawing:

[0016] 1, bottom plate, 2, axle seat, 3, main shaft, 4, axle hole, 5, axle fixed plate, 6, internal hexagonal bolt, 7, rotating component, 8, baffle ring, 9, pad high block, 10, column component, 11, flat key, 12, rotating plate, 13, track bar, 14, first positioning column, 15, second positioning column, 16, tool, 17, impeller, 18, inner edge surface, 19, labour -saving mechanism. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0018] As Figure 1 And Figure 2 The utility model discloses a large impeller key groove processing with broaching machine labour -saving mechanism, and the labour -saving mechanism 19 includes bottom plate 1, and the bottom plate 1 is installed with main shaft 3 through axle seat 2. The axle seat 2 is provided with axle hole 4 that contains the axle through main shaft 3, and the main shaft 3 and axle seat 2 are all provided with screw hole, and the outside of axle seat 2 is provided with axle fixed plate 5, and the same position of axle fixed plate 5 is provided with screw hole, and the main shaft 3 is fixed on axle seat 2 by screwing internal hexagonal bolt 6 in the screw hole of axle fixed plate 5.

[0019] The two main shafts 3 are parallel to each other, and each main shaft 3 is sleeved with two rotating members 7. The rotating members 7 are separated by a check ring 8. The rotating member 7 can rotate in place on the main shaft 3. In this embodiment, the rotating member 7 is preferably a bearing.

[0020] During assembly, the main shaft 3 is located above the shaft seat 2, so that the top surface of the rotating member 7 is higher than the top surface of the shaft seat 2.

[0021] The base plate 1 on both sides of the main shaft 3 is fixedly connected with a raised block 9. The raised block 9 is fixed between the two shaft seats 2 by an inner hexagonal bolt 6. The raised block 9 is threadedly connected with a column member 10 with external threads through a threaded hole with internal threads. Two column members 10 are arranged on each raised block 9. Since the connection is threaded, the column member 10 can be raised or lowered relative to the raised block 9 when it is rotated. In this embodiment, the column member 10 is preferably an outer hexagonal bolt.

[0022] When the height of the column member 10 is less than that of the rotating member 7, the labor-saving mechanism 19 is in an active state. When the height of the column member 10 is greater than that of the rotating member 7, the labor-saving mechanism 19 is in a fixed state.

[0023] The bottom of the base plate 1 is fixedly connected with a flat key 11, which is parallel to the extension direction of the main shaft 3. The labor-saving mechanism 19 is positioned in the T-shaped slot of the broaching machine through the flat key 11.

[0024] As shown in Figure 3 The track bar 13 of the broaching machine is rotatably sleeved with a rotating plate 12, which rotates around the track bar 13. The labor-saving mechanism 19 is placed below the rotating plate 12, and the main shaft 3 is placed along the radial direction of the rotating plate 12. The rotating plate 12 abuts against the rotating member 7. Two labor-saving mechanisms 19 can be placed below the rotating plate 12, so as to rotate and support both ends of the rotating plate 12. Alternatively, one labor-saving mechanism 19 can be placed, and a vertical column that slides with the rotating plate 12 is arranged on the opposite side to realize the rotation and support of the rotating plate 12.

[0025] The rotating plate 12 is fixedly connected with two first positioning columns 14 and one second positioning column 15 in a triangular shape. The two first positioning columns 14 are located on both sides of the track bar 13, and the back surface of the first positioning column 14 is flush with the back surface of the track bar 13. The track bar 13 is slidably provided with a tool 16 inside, and the tool 16 is exposed from the back surface of the track bar 13. The tool 16 is driven by a lifting mechanism to move up and down along the track bar 13.

[0026] When processing a large impeller, the impeller 17 is Figure 4The impeller 17 is placed on the rotating plate 12 so that the inner edge surface 18 of the impeller 17 abuts against the two first positioning columns 14 and the second positioning column 15. The preliminary positioning of the impeller 17 is achieved through the three positioning columns, and the inner edge surface 18 of the impeller is close to the track bar 13, so that the key groove can be cut on the inner edge surface 18 of the impeller when the cutter 16 cuts up and down. The impeller is fixed on the rotating plate 12 through the pressure device, so that the rotating plate 12 rotates synchronously with the impeller. The relative position between the inner edge surface 18 of the impeller and the cutter 16 can be finely adjusted by rotating the impeller. The labor-saving mechanism 19 makes the blank surface of the impeller 17 and the broaching machine have rolling friction, which can save labor. After fine positioning, the rotating column member 10 makes the height of the column member 10 rise and generate pressure with the rotating plate 12, so that the rotating plate 12 can be limited to prevent the rotating plate 12 from rotating during cutting.

[0027] When machining large impellers of different specifications, the second positioning column 15 can be installed on the rotating plate 12 through the screw nut mechanism, so that the position of the second positioning column 15 is adjustable, and then the impellers with different inner diameters can be adapted.

[0028] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

Claims

1. A power saving mechanism for a broaching machine for processing a key groove of a large impeller, characterized by, The utility model provides a labor saving mechanism for drawbench, including bottom plate, the main shaft is installed through the axle seat on bottom plate, the rotation component is sleeved on the main shaft, the fixed connection of bottom plate on the both sides of main shaft has the high -rise piece, the high -rise piece is connected with the column component with the screw hole of taking the inside screw thread through the screw thread with the outside screw thread, when the height of column component is less than the rotation component, labor saving mechanism is in active state, when the height of column component is greater than the rotation component, labor saving mechanism is in fixed state.

2. The power saving mechanism for a broaching machine for large impeller keyway machining according to claim 1, characterized in that, The main shaft is two, two main shafts are parallel to each other, and two rotation components are sleeved on each main shaft, and the two rotation components are separated by a check ring.

3. The power saving mechanism for a broaching machine for large impeller keyway machining according to claim 1, characterized in that, Two column components are arranged on each high-rise piece, and the high-rise piece is fixed between two axle seats.

4. The power saving mechanism for a broaching machine for large impeller keyway machining according to claim 1, characterized in that, A flat key is fixedly connected to the bottom of the bottom plate, the flat key is parallel to the extension direction of the main shaft, and the labor saving mechanism is positioned in the T-shaped slot of the drawbench through the flat key.

5. The power saving mechanism for a broaching machine for large impeller keyway machining according to claim 1, characterized in that, A rotating plate is rotatably sleeved on the track rod of the drawbench, and the labor saving mechanism is placed below the rotating plate, and the rotating plate abuts against the rotation component.

6. The power saving mechanism for a broaching machine for large impeller keyway machining according to claim 5, characterized in that, Two first positioning columns and one second positioning column are fixedly connected to the rotating plate in a triangular shape, the two first positioning columns are located on the two sides of the track rod, and the back surface of the first positioning column is flush with the back surface of the track rod.

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