Knife rest combined type waterproof and dustproof mechanism of machine tool

Abstract

The utility model discloses a tool rest combined type waterproof and dustproof mechanism of a machine tool, which belongs to the technical field of sealing structures and comprises a box body, the box body is fixedly connected with the machine tool, a fixed shaft is fixedly mounted in the box body, a cutter head is abutted against the fixed shaft, the cutter head is movably connected with the box body, and an elastic sealing ring and a V-shaped sealing ring are arranged at the joint of the cutter head and the box body. Two sets of sealing structures of the elastic sealing ring and the V-shaped sealing ring are arranged and matched with each other, the sealing effect on the connecting position of the cutter head and the box body is achieved, scrap iron and cooling liquid can be effectively prevented from entering the tool rest, protection on the tool rest is achieved, the stability of the tool rest of the machine tool is improved, the service life of the tool rest of the machine tool is prolonged, and the practicability of the waterproof and dustproof mechanism is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, in particular to a combined waterproof and dustproof mechanism for a tool rest of a machine tool. Background Art

[0002] The cutter disc and the housing will have relative rotational motion. If the sealing of the connection part is not perfect, coolant and iron filings will often enter the tool holder, causing rust and damage to the internal parts of the tool holder, and the cutter disc rotation jamming and other adverse conditions. If only rubber or polyurethane seals are used for sealing, iron filings will often directly contact the seals, and scratches will easily occur when the cutter disc rotates, causing damage to the seals and failing to achieve a long-term sealing effect. Therefore, a combined waterproof and dustproof mechanism for the tool holder of a machine tool is proposed. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a combined waterproof and dustproof mechanism for the tool holder of a machine tool, which is convenient for sealing between the tool disc and the box body to prevent coolant and iron filings from entering the tool holder, thereby protecting the parts inside the tool holder and improving the stability and service life of the tool holder.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a combined waterproof and dustproof mechanism for a tool holder of a machine tool, comprising a box body, which is fixedly connected to the machine tool, a fixed shaft is fixedly installed in the box body by bolts, a cutter disc is movably abutted on the fixed shaft, the cutter disc is movably connected to the box body, and an elastic sealing ring and a V-shaped sealing ring are provided at the connection between the cutter disc and the box body.

[0005] Preferably, a sealing groove is provided at the connection between the cutter disc and the box body, and a connecting seat is provided at the connection between the box body and the cutter disc. The connecting seat is located in the sealing groove, and a clamping groove is provided on the connecting seat. The elastic sealing ring is clamped in the clamping groove and abuts against the inner wall of the sealing groove. A limiting groove is provided on the inner side of the end of the connecting seat, and the V-shaped sealing ring abuts between the sealing groove and the limiting groove.

[0006] Preferably, a limit block is provided on the side of the fixed shaft close to the cutter disc, a limit plate is provided at the connection between the cutter disc and the fixed shaft, the surface of the limit block close to the side of the box body abuts against the surface of the limit plate, and a connecting plate is provided on the side of the fixed shaft close to the box body, a number of evenly distributed threaded holes are opened on the connecting plate, and the bolts pass through the box body and are threadedly connected with the threaded holes on the connecting plate.

[0007] Preferably, the V-shaped sealing ring comprises an integrally formed main body, a neck, and a sealing lip, the main body is sleeved and abutted in the sealing groove, and the sealing lip abuts in the limiting groove.

[0008] Preferably, the elastic sealing ring is made of spring steel, and its outer ring diameter is larger than the outer inner diameter of the sealing groove.

[0009] Preferably, the V-shaped sealing ring is a rubber sealing ring, and its material is nitrile rubber.

[0010] Preferably, both sides of the box body away from the cutter disc are provided with mounting grooves connected to the machine tool.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By setting an elastic sealing ring and a V-shaped sealing ring at the connection between the cutter disc and the box body, the two sets of sealing structures cooperate with each other to seal the connection between the cutter disc and the box body, effectively preventing iron filings and coolant from entering the tool holder, facilitating the protection of the tool holder, thereby improving the stability and service life of the tool holder.

[0013] 2. By designing the structure of the V-shaped sealing ring, the deviation caused by the axial eccentricity of the cutter disc rotation can be compensated to form a reliable seal. The neck plays an elastic connection role between the main body and the sealing lip, ensuring that the sealing lip has long-lasting mobility. It can effectively prevent the infiltration of internal oil and grease and the invasion of external dust and dirt, which is conducive to improving the practicality of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall structural assembly view of a combined waterproof and dustproof mechanism of a tool holder of a machine tool in an embodiment;

[0015] Figure 2 An exploded view of the overall structure of a combined waterproof and dustproof mechanism for a tool holder of a machine tool in an embodiment;

[0016] Figure 3 It is a cross-sectional view of the overall structure of a combined waterproof and dustproof mechanism of a tool holder of a machine tool in an embodiment;

[0017] Figure 4 A combined waterproof and dustproof mechanism for a tool holder of a machine tool in an embodiment Figure 3 A schematic diagram of the structure shown;

[0018] Figure 5 A schematic diagram of the structure of a V-shaped sealing ring of a combined waterproof and dustproof mechanism of a tool holder of a machine tool in an embodiment;

[0019] Among them: 1. Cutter disc; 11. Limit plate; 12. Sealing groove; 2. Box body; 21. Connecting seat; 22. Card slot; 23. Limit slot; 24. Mounting slot; 3. Fixed shaft; 31. Limit block; 32. Connecting plate; 4. Elastic sealing ring; 5. V-shaped sealing ring; 51. Main body; 52. Neck; 53. Sealing lip. DETAILED DESCRIPTION

[0020] The following is attached to the instruction manual Figure 1-5 , the technical solution of the utility model is explained through specific embodiments.

[0021] Embodiment:

[0022] like Figure 1-3 As shown, the utility model provides a combined waterproof and dustproof mechanism for a tool holder of a machine tool, including a box body 2, which is fixedly connected to the machine tool, a fixed shaft 3 is fixedly installed in the box body 2 by bolts, a cutter disc 1 is movably abutted on the fixed shaft 3, the cutter disc 1 is movably connected to the box body 2, and an elastic sealing ring 4 and a V-shaped sealing ring 5 are provided at the connection between the cutter disc 1 and the box body 2.

[0023] like Figure 4 As shown, a connecting seat 21 is provided at the connection between the box body 2 and the cutter disc 1, a sealing groove 12 is provided at the connection between the cutter disc 1 and the box body 2, the connecting seat 21 is located in the sealing groove 12, a clamping groove 22 is provided on the outer side of the connecting seat 21, a limiting groove 23 is provided on the inner side of the end of the connecting seat 21, the elastic sealing ring 4 is clamped in the clamping groove 22 and abuts against the inner wall of the sealing groove 12, and the V-shaped sealing ring 5 abuts between the limiting groove 23 and the sealing groove 12.

[0024] like Figure 3 As shown, a limit block 31 is provided at one end of the fixed shaft 3 close to the cutter disc 1, a limit plate 11 is provided at the connection between the cutter disc 1 and the fixed shaft 3, the limit block 31 is in contact with the surface of the limit plate 11 on one side close to the box body 2, a connecting plate 32 is provided at one end of the fixed shaft 3 close to the box body 2, a plurality of evenly distributed threaded holes are opened on the connecting plate 32, and bolts pass through the box body 2 and are threadedly connected with the threaded holes on the connecting plate 32.

[0025] like Figure 1 and Figure 2 As shown, both sides of the box body 2 away from the cutter head 1 are provided with mounting grooves 24 connected to the machine tool.

[0026] like Figure 5 As shown, the V-shaped sealing ring 5 includes an integrally formed main body 51, a neck 52, and a sealing lip 53. Figure 4 and Figure 5 ,from Figure 4 It can be seen from the figure that the main body 51 is sleeved and abuts against the sealing groove 12 , and the sealing lip 53 abuts against the limiting groove 23 .

[0027] It should be noted that, in this embodiment, the elastic sealing ring 4 is made of spring steel, and its outer ring diameter is larger than the outer inner diameter of the sealing groove 12 , and the V-shaped sealing ring 5 is a rubber sealing ring, and its material is nitrile rubber.

[0028] Installation steps: First, insert the elastic sealing ring 4 into the slot 22 on the connecting seat 21, and set the V-shaped sealing ring 5 in the sealing groove 12 on the cutter disc 1. Note: Pay attention to the direction of the V-shaped sealing ring 5. Put one side of the main body 51 into the sealing groove 12, with the sealing lip 53 facing the outside of the sealing groove 12. Insert one side of the connecting plate 32 of the fixed shaft 3 from the axis of the cutter disc 1 so that the limit block 31 abuts against the limit plate 11, move the box body 2 to the side of the cutter disc 1, connect the box body 2 to the cutter disc 1, make the sealing lip 53 abut against the limit groove 23, and the outer ring of the elastic sealing ring 4 abuts against the inner wall of the sealing groove 12. The box body 2 and the fixed shaft 3 are tightly pressed against each other. Use bolts to fix the box body 2 and the fixed shaft 3. Then, align the installation groove 24 with the connection position of the machine tool, fix the box body 2 and the machine tool, and complete the installation of the cutter disc 1 and the box body 2.

[0029] Working principle: When the machine tool tool holder is working, the cutter disc 1 and the box body 2 will have relative rotational motion. When the cutter disc 1 rotates, the V-shaped sealing ring 5 rotates synchronously with the cutter disc 1. The elasticity of the sealing lip 53 itself abuts against the limit groove 23, which can compensate for the deviation caused by the eccentric motion of the cutter disc 1. The outer diameter of the elastic sealing ring 4 is larger than the inner diameter of the sealing groove 12, and it has no relative motion with the cutter disc 1. The elastic sealing ring 4 and the V-shaped sealing ring 5 cooperate with each other, which can effectively prevent iron chips generated by cutting and coolant for cooling the tool from entering the tool holder, thereby protecting the parts inside the tool holder and improving the stability and reliability of the tool holder.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined waterproof and dustproof mechanism for a tool holder of a machine tool, comprising a box body, the box body being fixedly connected to the machine tool, characterized in that: A fixed shaft is fixedly installed in the box body by bolts, a cutter disc is movably abutted on the fixed shaft, the cutter disc is movably connected to the box body, and an elastic sealing ring and a V-shaped sealing ring are provided at the connection between the cutter disc and the box body.

2. The combined waterproof and dustproof mechanism for a tool rest of a machine tool according to claim 1, characterized in that: A sealing groove is provided at the connection between the cutter disc and the box body, and a connecting seat is provided at the connection between the box body and the cutter disc. The connecting seat is located in the sealing groove, and a clamping groove is provided on the connecting seat. The elastic sealing ring is clamped in the clamping groove and abuts against the inner wall of the sealing groove. A limiting groove is provided on the inner side of the end of the connecting seat, and the V-shaped sealing ring abuts between the sealing groove and the limiting groove.

3. The combined waterproof and dustproof mechanism for a tool rest of a machine tool according to claim 1, characterized in that: A limit block is provided on the side of the fixed shaft close to the cutter disc, a limit plate is provided at the connection between the cutter disc and the fixed shaft, the surface of the limit block close to the box body abuts against the surface of the limit plate, and a connecting plate is provided on the side of the fixed shaft close to the box body, a plurality of evenly distributed threaded holes are opened on the connecting plate, and the bolts pass through the box body and are threadedly connected with the threaded holes on the connecting plate.

4. The combined waterproof and dustproof mechanism for a tool rest of a machine tool according to claim 2, characterized in that: The V-shaped sealing ring comprises an integrally formed main body, a neck and a sealing lip. The main body is sleeved and abutted in the sealing groove, and the sealing lip abuts in the limiting groove.

5. The combined waterproof and dustproof mechanism for a tool rest of a machine tool according to claim 2, characterized in that: The elastic sealing ring is made of spring steel, and its outer ring diameter is larger than the outer inner diameter of the sealing groove.

6. The combined waterproof and dustproof mechanism for a tool rest of a machine tool according to claim 1, characterized in that: The V-shaped sealing ring is a rubber sealing ring, and its material is nitrile rubber.

7. The combined waterproof and dustproof mechanism for a tool rest of a machine tool according to claim 1, characterized in that: Both sides of the box body away from the cutter disc are provided with mounting grooves connected to the machine tool.

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