Polishing device for gearbox of large loader

Abstract

A large loader gearbox polishing device relates to the technical field of polishing and comprises a fixing shell, the fixing shell comprises a cutter handle fixing part and a rotating piece fixing part, the cutter handle fixing part is connected to a machine tool broach body through a cutter handle, a rotating piece is rotationally arranged on the rotating piece fixing part, and a brush is connected to the driving end of the rotating piece. The utility model solves the problems that the surface roughness is difficult to guarantee because the rotating speed is low because the gearbox of the large-scale loader in the traditional technology is generally machined by adopting a horizontal machining device with an extending main shaft; and the problems that existing polishing equipment is difficult to go deep into the gearbox of the large-scale loader for polishing, and the manual polishing efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing, in particular to a polishing device for a gearbox of a large loader. Background Art

[0002] Polishing is an important surface treatment technology, among which brush polishing occupies a large proportion in industrial polishing due to its simple and reliable characteristics. Brush polishing uses the characteristics of the brush to grind burrs, edges, protrusions, etc., and is usually used together with abrasives or polishing pastes. During the polishing process, the brush feed amount, brush rotation speed, brush polishing time, brush medium and abrasive medium abrasive size have a great influence on the polishing effect. The brush rotation speed is an important factor affecting the polishing efficiency and effect.

[0003] When the brush rotates at a high speed, the friction and grinding effect with the workpiece surface will be enhanced, thereby increasing the polishing speed and improving the polishing efficiency. However, too high a speed may also lead to excessive polishing and damage the workpiece surface, so it is necessary to select a suitable speed according to the material of the workpiece and the polishing requirements.

[0004] As the existing devices are used, their shortcomings are gradually exposed, mainly in the following aspects:

[0005] First, the existing large loader gearboxes are usually processed by horizontal machining with an extended spindle, and due to the low speed, it is difficult to ensure surface roughness.

[0006] Second, it is difficult for existing polishing equipment to penetrate deep into the gearbox of a large loader for polishing, and the efficiency of manual polishing is low.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the defects in the prior art, the utility model solves the problems that in traditional technology, large loader gearboxes are usually processed by horizontal machining with an extended main shaft, and it is difficult to ensure surface roughness due to the low rotation speed; and the existing polishing equipment is difficult to penetrate into the interior of the large loader gearbox for polishing, and the manual polishing efficiency is low.

[0009] In order to solve the above problems, the utility model provides the following technical solutions:

[0010] A large loader gearbox polishing device comprises a fixed housing, wherein the fixed housing comprises a tool handle fixing portion and a rotating member fixing portion.

[0011] The tool handle fixing part is connected to the machine tool broach body through the tool handle.

[0012] A rotating member is rotatably arranged on the rotating member fixing portion, and a brush is connected to the driving end of the rotating member.

[0013] As an optimized solution, the driving end of the rotating member is provided with a threaded section, and the brush is threadably connected to the threaded section.

[0014] As an optimized solution, the driving end of the rotating member is further provided with a limiting conical protrusion, and the back of the brush is provided with a limiting conical groove matching the limiting conical protrusion.

[0015] As an optimized solution, a groove is provided on the fixing portion of the knife handle, and a protrusion is provided on the knife handle to be inserted into the groove.

[0016] As an optimized solution, the fixing portion of the rotating member is provided with two stepped holes, and the outer shell of the rotating member is provided with steps matching the stepped holes.

[0017] As an optimized solution, the rotating part is an electric spindle.

[0018] As an optimized solution, the step hole is radially provided with a slot, one end of the slot passes through the rotating member fixing portion, and the rotating member fixing portion is connected to a rotating member fixing screw for fastening the rotating member to the rotating member fixing portion.

[0019] As an optimized solution, the rotating part fixing portion is coaxially provided with a thread groove and a stepped hole in the area on both sides of the slot, the rotating part fixing screw is located in the stepped hole, and the end of the rotating part fixing screw is threadedly connected to the thread groove.

[0020] As an optimized solution, a hollow structure is provided inside the tool handle fixing portion, and a tool handle fixing screw is connected by utilizing the hollow structure.

[0021] As an optimized solution, a plurality of the tool handle fixing screws are arranged in parallel along the axial direction of the tool handle.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] By setting up the polishing device in linkage with the machine tool, it is possible to achieve polishing without the need for additional polishing equipment after processing is completed. The polishing device also achieves high-speed polishing capability that the original machine tool does not have, greatly improving processing efficiency.

[0024] The structure is simple, the installation and operation are convenient, it can be assembled once, and there is no need to repeat the installation later, so the cost is low; the relative dimensions are fixed, and it only needs to verify the knife length for the first time, and the subsequent batch processing can be started with one button, which is suitable for mass polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the limiting conical protrusion of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the fixing screw of the rotating part of the utility model;

[0029] Figure 4 It is a schematic diagram of the structure of the protrusion of the utility model;

[0030] Figure 5 for Figure 4 Schematic diagram of the AA section.

[0031] In the figure: 1-tool handle fixing part; 2-rotating part fixing part; 3-rotating part; 4-brush; 5-tool handle; 6-hollow structure; 7-step; 8-limiting conical protrusion; 9-threaded section; 10-rotating part fixing screw; 11-groove; 12-protrusion; 13-tool handle fixing screw; 14-slot. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0033] like Figures 1 to 5 As shown, a large loader gearbox polishing device comprises a fixed housing, wherein the fixed housing comprises a tool handle fixing portion 1 and a rotating member fixing portion 2.

[0034] The tool handle fixing part 1 is connected to the machine tool broach body through the tool handle 5.

[0035] A rotating member 3 is rotatably provided on the rotating member fixing portion 2 , and a brush 4 is connected to the driving end of the rotating member 3 .

[0036] A threaded section 9 is provided at the driving end of the rotating member 3 , and the brush 4 is threadedly connected to the threaded section 9 .

[0037] The driving end of the rotating member 3 is also provided with a limiting conical protrusion 8, and the back of the brush 4 is provided with a limiting conical groove matching the limiting conical protrusion 8, and the taper ratio is 1:4.

[0038] The threaded direction of the threaded section 9 is opposite to the rotation direction. The design of the limiting conical protrusion 8 and the reverse thread prevents the brush 4 from loosening during the rotation process, thus playing a protective role. The limiting conical protrusion 8 plays a limiting role.

[0039] A groove 11 is provided on the handle fixing portion 1, and a protrusion 12 is provided on the handle 5 to be inserted into the groove 11, so as to facilitate positioning and enhance the connection strength between the handle 5 and the handle fixing portion 1 during polishing.

[0040] The rotating member fixing portion 2 is provided with two stepped holes, and the outer shell of the rotating member 3 is provided with steps 7 matching the stepped holes.

[0041] The rotating part 3 is an electric spindle.

[0042] The stepped hole is provided with a slot 14 in the radial direction, one end of the slot 14 penetrates the rotating member fixing part 2 , and the rotating member fixing screw 10 for fastening the rotating member 3 to the rotating member fixing part 2 is connected to the rotating member fixing part 2 .

[0043] The rotating member fixing portion 2 is coaxially provided with a thread groove and a stepped hole in the area on both sides of the slot 14. The rotating member fixing screw 10 is located in the stepped hole, and the end of the rotating member fixing screw 10 is threadedly connected to the thread groove.

[0044] The machining process of the rotating part fixing part 2 is as follows: first drill a hole, then cut off the slot 14 by wire cutting, first drill a hole and then penetrate the slot 14, cutting the rotating part fixing part 2 into two halves will cause the hole size to change or cutting through the slot 14, cutting the rotating part fixing part 2 into two halves and then drilling a hole, which makes the hole difficult to machine and the fit of the two halves of the hole cannot be guaranteed. Therefore, relying on this machining method, using the slot 14 structure, the machining is simple and the accuracy of the step hole can be guaranteed.

[0045] A hollow structure 6 is provided inside the handle fixing portion 1 , and a handle fixing screw 13 is connected via the hollow structure 6 , so that the installation and removal of the handle fixing screw 13 is facilitated.

[0046] A plurality of tool handle fixing screws 13 are arranged in parallel along the axial direction of the tool handle 5. The tool handle fixing screws 13 are evenly distributed along the axis of the tool handle 5, avoiding the protrusion 12 of the tool handle 5. The cooperation between the protrusion 12 and the groove 11 can also reduce the shearing effect on the screw during the swinging process of the polishing device, thereby preventing the tool handle fixing screws 13 from loosening.

[0047] By setting up the polishing device in linkage with the machine tool, it is possible to achieve polishing without the need for additional polishing equipment after processing is completed. The polishing device also achieves high-speed polishing capability that the original machine tool does not have, greatly improving processing efficiency.

[0048] The structure is simple, the installation and operation are convenient, it can be assembled once, and there is no need to repeat the installation later, so the cost is low; the relative dimensions are fixed, and it only needs to verify the knife length for the first time, and the subsequent batch processing can be started with one button, which is suitable for mass polishing.

[0049] The working principle of this device is:

[0050] The brush 4 is fixed on the rotating part 3 through the threaded section 9, and the rotating part 3 drives the brush 4 to rotate at high speed to achieve polishing; the outer shell of the rotating part 3 is fixed on the fixed shell; the tool handle 5 serves as a transition piece connecting the machine tool and the fixed shell, and is connected to the machine tool broach structure to realize that the machine tool spindle drives the polishing device to move, thereby completing the mobile polishing inside the gearbox.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. Large loader gearbox polishing device, characterized by: The fixed housing comprises a tool handle fixing portion (1) and a rotating member fixing portion (2). The tool handle fixing portion (1) is connected to the machine tool broach body via the tool handle (5). A rotating member (3) is rotatably provided on the rotating member fixing portion (2), and a brush (4) is connected to the driving end of the rotating member (3).

2. The large loader gearbox polishing device according to claim 1 is characterized in that: The driving end of the rotating member (3) is provided with a threaded section (9), and the brush (4) is threadably connected to the threaded section (9).

3. The large loader gearbox polishing device according to claim 1 is characterized in that: The driving end of the rotating member (3) is also provided with a limiting conical protrusion (8), and the back of the brush (4) is provided with a limiting conical groove matching the limiting conical protrusion (8).

4. The large loader gearbox polishing device according to claim 1, characterized in that: The knife handle fixing portion (1) is provided with a groove (11), and the knife handle (5) is provided with a protrusion (12) which is inserted into the groove (11).

5. The large loader gearbox polishing device according to claim 1, characterized in that: The rotating member fixing portion (2) is provided with two stepped holes, and the outer shell of the rotating member (3) is provided with steps (7) matching the stepped holes.

6. The large loader gearbox polishing device according to claim 1, characterized in that: The rotating part (3) is an electric spindle.

7. The large loader gearbox polishing device according to claim 5, characterized in that: The step hole is provided with a slot (14) in the radial direction, one end of the slot (14) passes through the rotating member fixing portion (2), and the rotating member fixing portion (2) is connected to a rotating member fixing screw (10) for fastening the rotating member (3) to the rotating member fixing portion (2).

8. The large loader gearbox polishing device according to claim 7, characterized in that: The rotating part fixing portion (2) is coaxially provided with a thread groove and a stepped hole in the area located on both sides of the slot (14), the rotating part fixing screw (10) is located in the stepped hole, and the end of the rotating part fixing screw (10) is threadedly connected to the thread groove.

9. The large loader gearbox polishing device according to claim 1, characterized in that: A hollow structure (6) is provided inside the knife handle fixing portion (1), and a knife handle fixing screw (13) is connected by utilizing the hollow structure (6).

10. The large loader gearbox polishing device according to claim 9, characterized in that: A plurality of the tool handle fixing screws (13) are arranged in parallel along the axial direction of the tool handle (5).

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