Crankshaft polishing tool

Abstract

The utility model discloses a crankshaft polishing tool which comprises a polishing arm, the lower portion of the polishing arm is fixedly connected with a polishing connecting base through a bolt, a polishing tile is arranged below the polishing connecting base, a polishing abrasive belt is arranged below the polishing tile, and the polishing abrasive belt is attached to a crankshaft journal through the polishing tile. The crankshaft polishing device has the advantages that the machining precision of a product is improved, polishing consumables are convenient to replace, a special tool is arranged to guarantee the polishing work of a crankshaft, the polishing work of the crankshaft can be met only by installing a balance block once, the polishing work of the crankshaft can be met without disassembling the balance block, and the polishing efficiency is improved. And procedures are saved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a polishing tool. Background Art

[0002] Some non-road crankshafts require the installation of balancing weights on the crankshaft before dynamic balancing. The crankshaft journals must undergo a polishing process to meet the journal roughness requirements. If the balancing weights are installed before polishing, the factory lacks the appropriate tooling for polishing. If polishing is performed first and then the balancing weights are installed for dynamic balancing, the roughness of the supporting journals will be damaged during the dynamic balancing process. The existing process steps include installing balancing weights, dynamic balancing, removing balancing weights, polishing, and installing balancing weights. Therefore, a tooling that can prevent interference with balancing weights and also has a polishing function is needed. Utility Model Content

[0003] In order to solve the above problems, the utility model discloses a crankshaft polishing tool.

[0004] The specific technical solutions are as follows:

[0005] A crankshaft polishing tool comprises a polishing arm, a polishing connecting seat being fixedly connected to the polishing arm by bolts, a polishing tile being provided below the polishing connecting seat, a polishing belt being provided below the polishing tile, the polishing belt being fitted to the crankshaft journal through the polishing tile, and the polishing arm, the polishing connecting seat and the polishing tile being symmetrically arranged up and down.

[0006] A balancing block connected to the crankshaft is provided on one side of the polishing shoe. A notch is provided on the side of the polishing shoe close to the balancing block and is arranged in the shape of the balancing block.

[0007] A dovetail groove is provided on the polishing connection seat to connect with the polishing tile.

[0008] A sanding belt clamp is provided on one side of the polishing connecting seat, and the polishing sanding belt is fixed by the sanding belt clamp.

[0009] The utility model has the advantages of being convenient for replacing polishing consumables, arranging special tooling to ensure the polishing work of the crankshaft, and being able to meet the polishing work of the crankshaft without disassembling the balancing block, thus saving working procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the positional relationship between the utility model and the balancing weight. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0013] A crankshaft polishing tool includes a polishing arm 1, a polishing connecting seat 3 is fixedly connected to the bottom of the polishing arm 1 by a bolt 2, a polishing tile 4 is provided below the polishing connecting seat 3, a polishing belt 5 is provided below the polishing tile 4, and the polishing belt 5 is fitted to the crankshaft journal 6 through the polishing tile 4. The polishing arm 1, the polishing connecting seat 3, and the polishing tile 4 are symmetrically arranged up and down.

[0014] A balancing block 7 connected to the crankshaft is provided on one side of the polishing shoe 4 . A notch 41 is provided on the side of the polishing shoe 4 close to the balancing block 7 and is arranged in the shape of the balancing block 7 .

[0015] A dovetail groove 31 is provided on the polishing connection seat 3 to connect with the polishing tile 4 .

[0016] A sanding belt clamp 8 is provided on one side of the polishing connecting seat 3, and the polishing sanding belt is fixed by the sanding belt clamp.

[0017] The working principle of the utility model is: first, the balancing block is installed on the crank arm mounting surface of the crankshaft, and dynamic balancing debugging is carried out. After debugging, the polishing work is prepared, the polishing pad is installed on the polishing arm, and then the polishing belt is clamped by the polishing pad, and the polishing belt is fully contacted with the crankshaft journal. Then, the polishing can be carried out by combining the rotation of the crankshaft and the left and right side movement of the polishing belt through the calibrated value or the machine tool setting program. Since the balancing block is always installed on the crankshaft during the polishing process, the rotation accuracy can be guaranteed, and the polishing pad and the balancing block do not interfere with each other, so the polishing work of the crankshaft journal can be completed.

Claims

1. A crankshaft polishing tool, comprising a polishing arm, characterized in that: A polishing connecting seat is fixedly connected to the bottom of the polishing arm by bolts, a polishing tile is provided below the polishing connecting seat, a polishing belt is provided below the polishing tile, and the polishing belt is fitted to the crankshaft journal through the polishing tile. The polishing arm, polishing connecting seat and polishing tile are symmetrically arranged up and down.

2. The crankshaft polishing tool according to claim 1, characterized in that: A balancing block connected to the crankshaft is provided on one side of the polishing shoe. A notch is provided on the side of the polishing shoe close to the balancing block and is arranged in the shape of the balancing block.

3. The crankshaft polishing tool according to claim 1, characterized in that: A dovetail groove is provided on the polishing connection seat to connect with the polishing tile.

4. The crankshaft polishing tool according to claim 1, characterized in that: A sanding belt clamp is provided on one side of the polishing connecting seat, and the polishing sanding belt is fixed by the sanding belt clamp.

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