Dustproof device for machining main shaft

Abstract

The utility model belongs to the technical field of numerical control lathes, and particularly relates to a machining spindle dustproof device which comprises a dustproof cover body, a dust removal shell and a detachable connecting mechanism, the dust removal shell comprises a dustproof baffle and a dust removal channel, the dustproof baffle detachably covers an opening of the cover body, and the dust removal channel is arranged on the dustproof baffle. The dustproof baffle covers the cover body opening, dust is prevented from entering through the dustproof space formed between the dustproof baffle and the dustproof cover body, and the dust removal channel is connected with the negative pressure dust suction system, so that the dust in the dustproof space can be removed in time, splashing of the dust in the dustproof space during machining is prevented, and normal work of the spindle is guaranteed. And meanwhile, the dustproof baffle is detachably installed through the detachable connecting mechanism, disassembly and assembly are convenient, and the dust removal channel and the dustproof space are convenient to clean.

Description

[Technical field]

[0001] The utility model belongs to the technical field of numerically controlled lathes, and in particular relates to a dust-proof device for a machining spindle. [Background technology]

[0002] The electric spindle is a new technology used in the field of CNC machine tools that integrates the machine tool spindle with the spindle motor. Its application scope is becoming wider and wider, and the technical level is getting higher and higher. However, there is a common problem with the spindles at present. Dust and metal debris will enter the spindle to varying degrees and corrode the internal components. In particular, the internal bearings will be damaged by erosion, which will seriously affect the spindle accuracy and stability. In severe cases, the spindle will fail and be shut down for maintenance. The coil may be short-circuited and burned after being corroded.

[0003] There is a utility model patent with publication number CN214722757U that discloses a spindle dustproof device, which covers the spindle with a dustproof tube to achieve dustproof. Although it prevents external dust from entering the spindle to a certain extent, there will still be dust and metal debris in the dustproof tube, which will still affect the spindle, and it is inconvenient to clean the dustproof tube. [Contents of the utility model]

[0004] The utility model aims to provide a processing spindle dustproof device which can prevent external dust from entering the spindle, can timely remove dust in the dustproof space, ensure the normal operation of the spindle and is convenient for cleaning.

[0005] The utility model is realized by the following technical solutions:

[0006] A dust prevention device for a machining spindle, comprising:

[0007] A dust cover body, which is used to be sleeved on the peripheral side of the main shaft, and a cover body opening is provided on the side wall of the dust cover body;

[0008] The dust removal housing comprises a dust baffle plate detachably mounted on the opening of the cover body, and a dust removal passage arranged on the dust baffle plate, a dust-proof space is formed between the dust baffle plate and the dust-proof cover body, and the dust removal passage is connected to the dust-proof space;

[0009] The detachable connecting mechanism is arranged between the dustproof baffle plate and the dustproof cover body, and is used for detachably connecting the dustproof baffle plate and the dustproof cover body.

[0010] In the above-mentioned dustproof device for a machining spindle, the inner wall of the dustproof baffle is in contact with the outer wall of the dustproof cover, and the detachable connection mechanism includes:

[0011] A positioning protrusion is arranged on the inner wall of the dustproof baffle;

[0012] A positioning groove, which is arranged on the outer wall of the dust cover and matches the positioning protrusion;

[0013] A first connecting hole, which is provided on the dust cover body;

[0014] A second connecting hole is provided on the dust baffle plate, and when the inner wall of the dust baffle plate is in contact with the outer wall of the dust cover body and the positioning protrusion extends into the positioning groove, the second connecting hole corresponds to the first connecting hole;

[0015] The connecting bolt is inserted into the first connecting hole and the second connecting hole.

[0016] The above-mentioned dust prevention device for a machining spindle further comprises:

[0017] The locking and fixing mechanism is arranged on the dust cover body and is used for locking and fixing the dust cover body on the main shaft.

[0018] As described above, in a processing spindle dustproof device, a cover notch connected to the cover opening is provided at a position of the dust cover side wall corresponding to the cover opening, and the dust cover has two oppositely arranged connecting ears extending outward along the edge of the cover notch, and the locking and fixing mechanism includes a locking hoop arranged on the two connecting ears.

[0019] In the above-mentioned dustproof device for a machining spindle, the locking and fixing mechanism further comprises a locking and fixing hole provided at one end of the dustproof cover body away from the cover body notch, and a locking and fixing screw provided on the locking and fixing hole.

[0020] As described above, a dustproof device for a machining spindle has a screw limiting protrusion on the outer wall of the dustproof cover and located around the locking and fixing hole.

[0021] In the above-mentioned dustproof device for a machining spindle, a ring buckle is sleeved on the outer wall of the dustproof cover, and a heat dissipation fin is arranged on the ring buckle.

[0022] In the above-mentioned dust-proof device for a machining spindle, an air-cooling heat dissipation device is provided on the heat dissipation fins.

[0023] As described above, a dust prevention device for a machining spindle has multiple heat dissipation fins, and mounting grooves are formed between adjacent heat dissipation fins. The air-cooled heat dissipation device includes an air-cooled mounting frame and a fan arranged in the air-cooled mounting frame. Mounting bolts are arranged at the four corners of the air-cooled mounting frame, and one end of the mounting bolts is installed in the mounting groove to fix the air-cooled mounting frame.

[0024] Compared with the prior art, the utility model has the following advantages:

[0025] The utility model provides a dust-proof device for a machining spindle, comprising a dust-proof cover body, a dust-removing shell, and a detachable connecting mechanism. The dust-removing shell comprises a dust-proof baffle plate detachably covered on an opening of the cover body, and a dust-removing channel arranged on the dust-proof baffle plate. When in use, the dust-proof cover body is sleeved on the peripheral side of the spindle, and then the dust-proof baffle plate is covered on the opening of the cover body. The dust-proof space formed between the dust-proof baffle plate and the dust-proof cover body blocks dust from entering. The dust-proof space is connected to a negative pressure dust suction system through the dust-removing channel, so that dust in the dust-proof space can be removed in time, and dust in the dust-proof space during machining can be prevented from splashing, thereby ensuring the normal operation of the spindle. At the same time, the dust-proof baffle plate can be detachably installed through the detachable connecting mechanism, which is convenient for disassembly and assembly, as well as cleaning of the dust-removing channel and the dust-proof space.

Brief Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0027] Figure 1 It is a structural schematic diagram of a dust-proof device for a machining spindle in a specific embodiment of the utility model;

[0028] Figure 2 It is a structural schematic diagram of a dust-proof device for a machining spindle in a specific embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of the exploded structure of the dust prevention device for the machining spindle in a specific embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the exploded structure of the machining spindle dust prevention device in a specific implementation manner of the utility model. [Specific implementation method]

[0031] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] When the embodiments of the present invention mention ordinal numbers such as "first" and "second", unless they do express the meaning of order according to the context, they should be understood as being merely for distinction.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Specific embodiments, such as Figure 1-4 The dustproof device for a machining spindle shown in the figure comprises: a dustproof cover body 1, which is used to be sleeved on the circumference of the spindle, and a cover body opening 2 is provided on the side wall of the dustproof cover body 1; a dust removal shell 3, comprising a dustproof baffle 31 detachably covered on the cover body opening 2, and a dust removal channel 32 arranged on the dustproof baffle 31, a dustproof space 4 is formed between the dustproof baffle 31 and the dustproof cover body 1, and the dust removal channel 32 is connected to the dustproof space 4; a detachable connecting mechanism 5, which is arranged between the dustproof baffle 31 and the dustproof cover body 1, and is used for detachably connecting the dustproof baffle 31 and the dustproof cover body 1. When in use, the dust cover body is sleeved on the peripheral side of the main shaft, and then the dust baffle plate is covered on the opening of the cover body. The dust-proof space formed by the dust baffle plate and the dust cover body blocks dust from entering, and is connected to the negative pressure dust suction system through a dust removal channel. Dust in the dust-proof space can be removed in time to prevent dust in the dust-proof space from splashing during processing, thereby ensuring the normal operation of the main shaft. At the same time, the dust baffle plate can be detachably installed through a detachable connecting mechanism, which is convenient for disassembly and assembly, as well as cleaning of the dust removal channel and the dust-proof space.

[0035] Specifically, the inner wall of the dust baffle 31 is fitted with the outer wall of the dust cover body 1, and the detachable connection mechanism 5 includes: a positioning protrusion 51, which is provided on the inner wall of the dust baffle 31; a positioning groove 52, which is provided on the outer wall of the dust cover body 1 and matches the positioning protrusion 51; a first connecting hole 53, which is provided on the dust cover body 1; a second connecting hole 54, which is provided on the dust baffle 31, when the inner wall of the dust baffle 31 is fitted with the outer wall of the dust cover body 1 and the positioning protrusion 51 extends into the positioning groove 52, the second connecting hole 54 corresponds to the first connecting hole 53; a connecting bolt 55, which is passed through the first connecting hole 53 and the second connecting hole 54. It is convenient to disassemble and assemble, and the efficiency is high.

[0036] In addition, the machining spindle dustproof device further comprises a locking and fixing mechanism 6, which is arranged on the dustproof cover 1 and is used to lock and fix the dustproof cover 1 on the spindle, so that the dustproof cover 1 is stably sleeved on the spindle.

[0037] Furthermore, a cover notch 7 communicating with the cover opening 2 is provided at a position of the side wall of the dust cover 1 corresponding to the cover opening 2, and the dust cover 1 has two oppositely arranged connecting ears 8 extending outward along the edge of the cover notch 7, and the locking and fixing mechanism 6 includes a locking hoop 61 provided on the two connecting ears 8. The locking hoop 61 is matched with a screw and a nut to reduce the distance between the two connecting ears 8, thereby reducing the size of the cover notch 7, so that one end of the dust cover 1 holds the main shaft tightly.

[0038] More specifically, the locking and fixing mechanism 6 also includes a locking and fixing hole 62 provided at one end of the dust cover 1 away from the cover notch 7, and a locking and fixing screw 63 provided on the locking and fixing hole 62, so that the dust cover 1 is locked and fixed on the main shaft more stably.

[0039] Furthermore, a screw rod limiting protrusion 9 is provided on the outer wall of the dust cover body 1 and around the locking and fixing hole 62 to limit the screwing depth of the screw rod limiting protrusion 9 .

[0040] Furthermore, a ring buckle 10 is sleeved on the outer wall of the dust cover 1, and a heat dissipation fin 11 is provided on the ring buckle to achieve heat dissipation through the heat dissipation fin 11. The inner wall of the ring buckle 6 is tightly matched with the outer wall of the spindle housing 1, and can be fixed to the spindle housing 1 by bolt connection or welding.

[0041] In order to further improve the heat dissipation performance, an air cooling device 12 is provided on the heat dissipation fins 11. The air cooling device 12 can blow cold air toward the dust cover 1 to dissipate heat, or the air cooling device 12 can extract heat from the heat dissipation fins 11.

[0042] Specifically, there are multiple heat dissipation fins 11, and mounting grooves 13 are formed between adjacent heat dissipation fins 11. The air-cooled heat dissipation device 12 includes an air-cooled mounting frame 121 and a fan 122 arranged in the air-cooled mounting frame 121. The air-cooled mounting frame 121 is provided with mounting bolts 123 at the four corners. One end of the mounting bolt 123 is installed in the mounting groove 13 to fix the air-cooled mounting frame 121. The air-cooled mounting frame 121 is convenient for disassembly and replacement, and the installation is stable.

[0043] The above is an implementation method provided in combination with specific content, and it is not considered that the specific implementation of the utility model is limited to these descriptions. At the same time, due to different industry names, it is not limited to the above names, nor is it limited to English names. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or a number of technical deductions or replacements made on the premise of the concept of the utility model, shall be regarded as the protection scope of the utility model.

Claims

1. A dust prevention device for a machining spindle, characterized in that: include: A dust cover (1) is used for being sleeved on the peripheral side of the main shaft, and a cover opening (2) is provided on the side wall of the dust cover (1); The dust removal housing (3) comprises a dust baffle (31) detachably mounted on the housing opening (2), and a dust removal passage (32) mounted on the dust baffle (31), a dust-proof space (4) being formed between the dust baffle (31) and the dust-proof housing (1), and the dust removal passage (32) being in communication with the dust-proof space (4); A detachable connection mechanism (5) is provided between the dustproof baffle plate (31) and the dustproof cover body (1) and is used for detachably connecting the dustproof baffle plate (31) and the dustproof cover body (1).

2. A dust prevention device for a machining spindle according to claim 1, characterized in that: The inner wall of the dustproof baffle (31) is in contact with the outer wall of the dustproof cover (1), and the detachable connection mechanism (5) comprises: A positioning protrusion (51) is provided on the inner wall of the dustproof baffle (31); A positioning groove (52) is provided on the outer wall of the dust cover (1) and matches the positioning protrusion (51); A first connecting hole (53) provided on the dust cover (1); A second connecting hole (54) is provided on the dust baffle (31), and when the inner wall of the dust baffle (31) is in contact with the outer wall of the dust cover (1) and the positioning protrusion (51) extends into the positioning groove (52), the second connecting hole (54) corresponds to the first connecting hole (53); A connecting bolt (55) is inserted through the first connecting hole (53) and the second connecting hole (54).

3. A dust prevention device for a machining spindle according to claim 1, characterized in that: Also includes: A locking and fixing mechanism (6) is arranged on the dust cover body (1) and is used to lock and fix the dust cover body (1) on the main shaft.

4. A dust prevention device for a machining spindle according to claim 3, characterized in that: A cover notch (7) communicating with the cover opening (2) is provided on the side wall of the dust cover (1) at a position corresponding to the cover opening (2); the dust cover (1) has two oppositely arranged connecting ears (8) extending outwardly along the edge of the cover notch (7); and the locking and fixing mechanism (6) includes a locking hoop (61) provided on the two connecting ears (8).

5. A dust prevention device for a machining spindle according to claim 4, characterized in that: The locking and fixing mechanism (6) further comprises a locking and fixing hole (62) provided at one end of the dust cover (1) away from the cover notch (7), and a locking and fixing screw (63) provided on the locking and fixing hole (62).

6. A dust prevention device for a machining spindle according to claim 5, characterized in that: A screw rod limiting protrusion (9) is provided on the outer wall of the dust cover body (1) and is located around the locking and fixing hole (62).

7. A dust prevention device for a machining spindle according to claim 1, characterized in that: A ring buckle (10) is sleeved on the outer wall of the dustproof cover body (1), and a heat dissipation fin (11) is provided on the ring buckle.

8. A dust prevention device for a machining spindle according to claim 7, characterized in that: An air-cooling heat dissipation device (12) is provided on the heat dissipation fins (11).

9. A dust prevention device for a machining spindle according to claim 8, characterized in that: There are a plurality of heat dissipation fins (11), and mounting grooves (13) are formed between adjacent heat dissipation fins (11). The air-cooling heat dissipation device (12) comprises an air-cooling mounting frame (121) and a fan (122) arranged in the air-cooling mounting frame (121). Mounting bolts (123) are arranged at four corners of the air-cooling mounting frame (121), and one end of the mounting bolt (123) is installed in the mounting groove (13) to fix the air-cooling mounting frame (121).

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