A machine tool spindle adjustment device

Abstract

The utility model discloses a lathe main shaft adjusting device concretely relates to numerical control machine tool technical field, including main shaft body and fixed part, the outside fixed mounting of main shaft body has bearing body, the fixed part includes two fixed frames of symmetrical distribution, is equipped with the bearing groove of corresponding bearing body in two fixed frames, bearing body swing joint is in corresponding bearing groove, the middle part of bearing groove all is equipped with cooling end groove, is equipped with cooling middle groove between two bearing grooves, two fixed frame cooling end groove forms bearing cooling cavity, the bearing body outer wall and bearing cooling cavity contact, this lathe main shaft adjusting device can carry out temperature regulation to main shaft and bearing, not only can carry out the temperature rise to main shaft body and bearing body, to adapt external cold environment, also can carry out the cooling to main shaft body and bearing body, prevents the heat deformation influence accurate operation of bearing temperature and main shaft temperature rise.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a machine tool spindle adjustment device. Background Technology

[0002] In modern manufacturing, machine tools are core processing equipment, and their performance directly determines the processing accuracy, efficiency and quality of parts. The spindle, as the "core execution component" of the machine tool, plays a key role in driving the cutting tool or workpiece to rotate at high speed to complete processing tasks such as cutting and grinding. The spindle is mounted through bearings.

[0003] However, once the existing machine tool spindle and bearings are installed, the overall structure lacks a certain degree of temperature regulation. When the external environment is low, the internal temperature of the bearing is low before the spindle rotates at high speed, which will affect the normal use of the bearing. Moreover, after the spindle rotates at high speed for a period of time, the temperature of the bearing and the spindle will rise. Prolonged use will cause certain thermal deformation, which will affect the precise operation of the spindle and bearing, and thus affect the machining accuracy of the machine tool. To address these issues, we propose a machine tool spindle adjustment device. Utility Model Content

[0004] The purpose of this invention is to provide a machine tool spindle adjustment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a machine tool spindle adjustment device, comprising a spindle body and a fixing component. A bearing body is fixedly installed on the outer side of the spindle body. The fixing component includes two symmetrically distributed fixing frames. Bearing grooves corresponding to the bearing bodies are formed in the two fixing frames. The bearing bodies are movably engaged in the corresponding bearing grooves. Cooling end grooves are formed in the middle of the bearing grooves. A cooling middle groove is formed between the two bearing grooves. The cooling end grooves in the two fixing frames form a bearing cooling cavity. The outer wall of the bearing body contacts the bearing cooling cavity. The cooling middle grooves in the two fixing frames form a spindle cooling cavity. The outer wall of the spindle body contacts the spindle cooling cavity. Auxiliary components are provided at both ends of the fixing component.

[0006] Preferably, a first pipe is fixedly fastened to the top of the fixed frame near the cooling end slot, and a second pipe is fixedly fastened to the top of the fixed frame near the cooling middle slot. A connecting pipe is fixedly installed between the first pipe and the second pipe at adjacent positions, and a connector is fixedly installed at the top of the first pipe at the remaining positions.

[0007] Preferably, the auxiliary component includes a tee pipe, which is fixedly installed at the top of the corresponding connector, and valves are fixedly installed at both ends of the tee pipe away from the connector.

[0008] Preferably, a connecting pipe is fixedly installed at the end of the valve away from the tee pipe.

[0009] Preferably, a fixing bolt is movably mounted at each of the four corners of one of the fixing frames, and the end of the fixing bolt is threadedly installed at the four corners of the other fixing frame.

[0010] Preferably, one of the fixing frames has a sealing protrusion integrally formed on its inner side, and the other fixing frame has a sealing groove corresponding to the sealing protrusion on its inner side, and the sealing protrusion is movably engaged in the corresponding sealing groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The spindle adjustment device of this machine tool can regulate the temperature of the spindle and bearings. It can not only raise the temperature of the spindle body and bearing body to adapt to the external cold environment, but also cool the spindle body and bearing body to prevent thermal deformation caused by the increase of bearing temperature and spindle temperature from affecting precise operation.

[0012] 2. The spindle adjustment device of this machine tool uses fixing bolts to fix two fixing frames, thereby fixing the spindle body and bearing body, and facilitating the disassembly of the spindle body and bearing body by removing the fixing bolts. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model after disassembly.

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0017] Figure 4 This is a schematic diagram showing the structural connection of the spindle body, bearing body, and fixing component in this utility model.

[0018] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0019] Figure 6This is a schematic diagram of the planar structure of the spindle body, bearing body, and fixing component in this utility model.

[0020] In the diagram: 1. Spindle body; 11. Bearing body; 2. Fixing component; 211. Sealing protrusion; 201. Bearing groove; 202. Cooling end groove; 203. Sealing groove; 204. Cooling middle groove; 21. Fixing frame; 22. Fixing bolt; 23. First pipe; 24. Second pipe; 25. Connecting pipe; 26. Connector; 3. Auxiliary component; 31. T-pipe; 32. Valve; 33. Connecting pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Figure 1-6 As shown, this utility model provides a machine tool spindle adjustment device, including a spindle body 1 and a fixing member 2. A bearing body 11 is fixedly installed on the outer side of the spindle body 1. The fixing member 2 includes two symmetrically distributed fixing frames 21. The two fixing frames 21 have bearing grooves 201 corresponding to the bearing body 11. The bearing body 11 is movably engaged in the corresponding bearing grooves 201 for positioning and installation of the spindle body 1 and the bearing body 11. A cooling end groove 202 is provided in the middle of each bearing groove 201. A cooling middle groove 204 is provided between the two bearing grooves 201. The cooling end grooves 202 in the two fixing frames 21 form a bearing cooling cavity. The outer wall of the bearing body 11 contacts the bearing cooling cavity, which facilitates cooling or heating of the bearing body 11. The cooling grooves 204 in the two fixed frames 21 form the spindle cooling cavity. The outer wall of the spindle body 1 is in contact with the spindle cooling cavity. The two ends of the fixed member 2 are provided with auxiliary members 3 to facilitate cooling or heating of the spindle body 1. Two first tubes 23 are fixedly fastened on the top side of the fixed frame 21 near the cooling end groove 202. The two first tubes 23 are at the top of the bearing cooling cavity. Two second tubes 24 are fixedly fastened on the top side of the fixed frame 21 near the cooling middle groove 204. The two second tubes 24 are at the top of the spindle cooling cavity. A connecting pipe 25 is fixedly installed between the first pipe 23 and the second pipe 24 at adjacent positions. The connecting pipe 25 is used to connect the adjacent bearing cooling chamber and the spindle cooling chamber. A connector 26 is fixedly installed at the top of the remaining first pipe 23.

[0023] The auxiliary component 3 includes a three-way pipe 31, which is fixedly installed on the top of the corresponding connector 26. Valves 32 are fixedly installed on both ends of the three-way pipe 31 away from the connector 26. A connecting pipe 33 is fixedly installed on the end of the valve 32 away from the three-way pipe 31. In use, the end of one of the connecting pipes 33 of the two auxiliary components 3 is connected to the circulating pump in the external heat flow circulation system. The valve 32 corresponding to the position of the connecting pipe 33 in the external heat flow circulation system is opened. The heat flow is introduced into the bearing cooling chamber and the spindle cooling chamber through the corresponding connecting pipe 33, the three-way pipe 31, and the connector 26, and then flows back into the heat flow circulation system to circulate the heat flow in the bearing cooling chamber and the spindle cooling chamber, thereby raising the temperature of the spindle body 1 and the bearing body 11 to adapt to the external cold environment. The end of the other connecting pipe 33 in the two auxiliary components 3 is connected to the circulating pump in the external coolant circulation system. The valve 32 corresponding to the position of the external coolant circulation system and the connecting pipe 33 is opened. The coolant is introduced into the bearing cooling chamber and the spindle cooling chamber through the corresponding connecting pipe 33, the three-way pipe 31, and the connector 26, and then flows back into the coolant circulation system to circulate the coolant in the bearing cooling chamber and the spindle cooling chamber, thereby cooling the spindle body 1 and the bearing body 11 and preventing the bearing temperature and spindle temperature from rising and causing thermal deformation that affects the precise operation.

[0024] One of the fixed frames 21 has four corners where fixed bolts 22 are movably mounted. The ends of the fixed bolts 22 are threaded and installed at the four corners of the other fixed frame 21, so as to fix the two fixed frames 21 with bolts, thereby fixing the spindle body 1 and the bearing body 11, and making it easy to disassemble the spindle body 1 and the bearing body 11 by removing the fixed bolts 22.

[0025] One of the fixing frames 21 has an integrally formed sealing protrusion 211 on its inner side, and the other fixing frame 21 has a sealing groove 203 corresponding to the sealing protrusion 211 on its inner side. The sealing protrusion 211 is movably engaged in the corresponding sealing groove 203 to seal the area around the cooling end groove 202 and the cooling middle groove 204, thereby improving the sealing performance of the bearing cooling cavity and the spindle cooling cavity.

[0026] Working principle: When in use, the spindle body 1 is movably snapped into the corresponding bearing groove 201 through the bearing body 11 to position and install the spindle body 1 and the bearing body 11. Then, the two fixing frames 21 are fixed with fixing bolts 22 to fix the spindle body 1 and the bearing body 11. Subsequently, the end of one of the connecting pipes 33 of the two auxiliary components 3 is connected to the circulating pump in the external heat flow circulation system, and the end of the other connecting pipe 33 of the two auxiliary components 3 is connected to the circulating pump in the external coolant circulation system. When the external environment is cold, before using the machine tool, the external heat flow circulation system and the valve 32 corresponding to the position of the connecting pipe 33 can be opened. The heat flow is introduced into the bearing cooling chamber and the spindle cooling chamber through the corresponding connecting pipe 33, the three-way pipe 31, and the connector 26, and then flows back into the heat flow circulation system to circulate the heat flow in the bearing cooling chamber and the spindle cooling chamber, thereby raising the temperature of the spindle body 1 and the bearing body 11 to adapt to the external cold environment. After the machine tool has been used for a period of time, in order to prevent the temperature of the spindle body 1 and bearing body 11 from rising, the external coolant circulation system and the valve 32 corresponding to the position of the connecting pipe 33 are opened. The coolant is introduced into the bearing cooling chamber and the spindle cooling chamber through the corresponding connecting pipe 33, tee pipe 31 and connector 26, and then flows back into the coolant circulation system to circulate the coolant in the bearing cooling chamber and the spindle cooling chamber, thereby cooling the spindle body 1 and bearing body 11 and preventing the bearing temperature and spindle temperature from rising and causing thermal deformation that affects the precise operation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machine tool spindle adjustment device, comprising a spindle body (1) and a fixing component (2), characterized in that: A bearing body (11) is fixedly installed on the outside of the main spindle body (1). The fixing member (2) includes two symmetrically distributed fixing frames (21). The two fixing frames (21) have bearing grooves (201) corresponding to the bearing body (11). The bearing body (11) is movably engaged in the corresponding bearing groove (201). The middle part of each bearing groove (201) has a cooling end groove (202). A cooling middle groove (204) is formed between the two bearing grooves (201). The cooling end grooves (202) in the two fixing frames (21) form a bearing cooling cavity. The outer wall of the bearing body (11) is in contact with the bearing cooling cavity. The cooling middle grooves (204) in the two fixing frames (21) form a main spindle cooling cavity. The outer wall of the main spindle body (1) is in contact with the main spindle cooling cavity. The two ends of the fixing member (2) are provided with auxiliary members (3).

2. The machine tool spindle adjustment device according to claim 1, characterized in that: The top of the fixed frame (21) near the cooling end slot (202) is fixedly fitted with a first tube (23), and the top of the fixed frame (21) near the cooling middle slot (204) is fixedly fitted with a second tube (24). A connecting pipe (25) is fixedly installed between the first tube (23) and the second tube (24) at adjacent positions. A connector (26) is fixedly installed at the top of the first tube (23) at the remaining positions.

3. The machine tool spindle adjustment device according to claim 2, characterized in that: The auxiliary component (3) includes a three-way pipe (31), which is fixedly installed at the top of the corresponding connector (26). Valves (32) are fixedly installed at both ends of the three-way pipe (31) away from the connector (26).

4. A machine tool spindle adjustment device according to claim 3, characterized in that: Each valve (32) has a connecting pipe (33) fixedly installed at the end away from the tee pipe (31).

5. A machine tool spindle adjustment device according to claim 1, characterized in that: One of the fixed frames (21) has a fixed bolt (22) movably mounted at each of the four corners, and the end of the fixed bolt (22) is threadedly installed at the four corners of the other fixed frame (21).

6. A machine tool spindle adjustment device according to claim 1, characterized in that: One of the fixing frames (21) has a sealing protrusion (211) integrally formed on its inner side, and the other fixing frame (21) has a sealing groove (203) corresponding to the sealing protrusion (211) on its inner side. The sealing protrusion (211) is movably engaged in the corresponding sealing groove (203).

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