Machine tool spindle

Abstract

The utility model discloses a machine tool spindle. The machine tool spindle comprises a sleeve, a spindle core arranged in the sleeve and a driving motor installed on the spindle core. One end of the shaft core extends out of the sleeve through an end opening in one end of the sleeve, a rear end cover is arranged at the end opening of the sleeve, the shaft core is sleeved with the rear end cover, and the rear end cover is embedded in the sleeve; the driving motor is arranged at the end, extending out of the sleeve, of the shaft core, and the end face of one end of the driving motor is connected with the end face of a port of the sleeve. The rear end cover is embedded in the sleeve, so that the driving motor is connected with the end face of the machine tool spindle, a gap between the driving motor and the machine tool spindle is avoided, the mounting convenience of the driving motor is improved, and the overall rigidity of the machine tool spindle is improved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of machine tools, in particular to a main shaft of a machine tool. Background Art

[0002] The machine tool spindle is one of the main machine tool components used to achieve the clamping of the workpiece or tool. After the current machine tool spindle completes the clamping of the workpiece or tool, it generally drives the workpiece or tool to rotate through an external drive motor to meet processing requirements.

[0003] The existing machine tool spindle reserves an installation position for the drive motor. Since a rear end cover is provided between the end faces of the drive motor and the machine tool spindle, a gap is formed between the end faces of the drive motor and the machine tool spindle, which affects the installation convenience of the drive motor and reduces the overall rigidity of the machine tool spindle. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art. The utility model provides a machine tool spindle. By embedding the rear end cover in the sleeve, the drive motor is connected to the end face of the machine tool spindle, avoiding the occurrence of a gap between the drive motor and the machine tool spindle, improving the installation convenience of the drive motor, and improving the overall rigidity of the machine tool spindle.

[0005] The utility model provides a machine tool spindle, which comprises a sleeve, a shaft core arranged in the sleeve and a driving motor installed on the shaft core;

[0006] One end of the shaft core extends outside the sleeve through a port at one end of the sleeve, a rear end cover is provided at the port position of the sleeve, the rear end cover is sleeved on the shaft core, and the rear end cover is embedded in the sleeve;

[0007] The driving motor is arranged at one end of the shaft core extending outside the sleeve, and an end surface of one end of the driving motor is connected to the port end surface of the sleeve.

[0008] Furthermore, a stroke adjustment rod is arranged in the main spindle of the machine tool, and the stroke adjustment rod is inserted in the shaft core.

[0009] Furthermore, the machine tool spindle also includes a front end flange and a piston;

[0010] The front end flange is matched with the other end port position of the sleeve, and the piston is arranged between the front end flange and the shaft core.

[0011] Furthermore, a receiving groove is formed between the front end flange and the shaft core, and the piston is arranged in the receiving groove;

[0012] The containing groove is divided into an oil inlet chamber and an oil outlet chamber based on the piston.

[0013] Furthermore, a rotary oil cylinder structure is arranged in the spindle of the machine tool, and the rotary oil cylinder structure includes an oil cylinder valve body, an oil inlet path and an oil outlet path arranged in the spindle of the machine tool;

[0014] The oil inlet path is communicated with the oil inlet cavity, and the oil outlet path is communicated with the oil outlet cavity.

[0015] Furthermore, the machine tool spindle is also provided with an oil return path, and the sleeve is provided with an oil return port, and the oil return port is connected with the oil outlet cavity based on the oil return path.

[0016] Furthermore, a through hole is provided on the rear end cover, and an oil inlet and an oil outlet are provided on one end of the sleeve;

[0017] The oil inlet is communicated with the oil inlet path based on the through hole, and the oil outlet is communicated with the oil outlet path based on the through hole.

[0018] The utility model provides a machine tool spindle, which connects the end face of the drive motor and the machine tool spindle by embedding the rear end cover in the sleeve, thereby avoiding a gap between the drive motor and the machine tool spindle, improving the installation convenience of the drive motor and improving the overall rigidity of the machine tool spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural sectional view of the machine tool spindle in the embodiment of the utility model;

[0021] Figure 2 It is another visual structural sectional view of the machine tool spindle in the embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of a machine tool spindle in an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Figure 1 The structure sectional view of the machine tool spindle in the embodiment of the utility model is shown. Figure 2 Another visual structural sectional view of the machine tool spindle in the embodiment of the utility model is shown. Figure 3 The schematic diagram of the structure of the machine tool spindle in the embodiment of the utility model is shown. The machine tool spindle comprises a sleeve 1, a shaft core 2 arranged in the sleeve 1 and a drive motor 9 installed on the shaft core 2, and the drive motor 9 is used to drive the machine tool spindle to rotate.

[0025] Specifically, one end of the shaft core 2 extends outside the sleeve 1 through one end port of the sleeve 1, and a rear end cover 6 is provided at the port position of the sleeve 1, the rear end cover 6 is sleeved on the shaft core 2, and the rear end cover 6 is embedded in the sleeve 1; the drive motor 9 is arranged at one end of the shaft core 2 extending outside the sleeve 1, and one end face of the drive motor 9 is connected to the port end face of the sleeve 1, and an installation position of the drive motor 9 is provided on the shaft core 2 extending outside, and the drive motor 9 drives the shaft core 2 to realize the rotational drive of the machine tool spindle.

[0026] Furthermore, the sleeve 1 is reversed so that the rear end cover 6 of the machine tool spindle cooperates with the front end of the sleeve 1, that is, the shaft core 2 extends outside the sleeve 1 through the front end of the sleeve 1, and the rear end cover 6 is embedded in the front end port of the sleeve 1 according to the port structure design of the sleeve 1, so that when the drive motor 9 is installed on the shaft core 2, it can be connected with the front end face of the sleeve 1, thereby avoiding a gap between the drive motor 9 and the machine tool spindle, and improving the tightness of the connection between the machine tool spindle and the drive motor 9.

[0027] Specifically, a stroke adjustment rod 3 is provided in the machine tool spindle, and the stroke adjustment rod 3 is inserted into the shaft core 2 . Based on the stroke adjustment rod 3 , the working stroke of the machine tool spindle can be adjusted.

[0028] Specifically, the machine tool spindle also includes a front end flange 4 and a piston 8. The front end flange 4 is matched with the other end port position of the sleeve 1, that is, the front end flange 4 is matched with the rear end port of the sleeve 1, and the piston 8 is arranged between the front end flange 4 and the shaft core 2.

[0029] Furthermore, a receiving groove is formed between the front end flange 4 and the shaft core 2 , the piston 8 is disposed in the receiving groove, and the receiving groove is divided into an oil inlet chamber and an oil outlet chamber based on the piston 8 .

[0030] Furthermore, the front end flange 4 is used to connect an external clamping component, one end of the clamping component is inserted into the front end flange 4 and fits into one end of the piston 8. When the cylinder valve body 7 drives the piston 8 to reciprocate, the piston 8 can drive the clamping component to achieve clamping or releasing operations.

[0031] Specifically, the machine tool spindle is also provided with a front end cover 5 plate, and the front end cover 5 plate covers the front end flange 4, and the front end cover 5 plate plays a protective role such as dustproof and waterproof.

[0032] Specifically, a rotary cylinder structure is provided in the machine tool spindle, and the rotary cylinder structure includes a cylinder valve body 7, an oil inlet path 11 and an oil outlet path 12 provided in the machine tool spindle, the oil inlet path 11 is connected to the oil inlet chamber, and the oil outlet path 12 is connected to the oil outlet chamber.

[0033] Furthermore, a through hole is formed on the rear end cover 6, and an oil inlet 13 and an oil outlet 14 are formed at one end of the sleeve 1. The oil inlet 13 is connected to the oil inlet path 11 based on the through hole, and the oil outlet 14 is connected to the oil outlet path 12 based on the through hole.

[0034] An oil inlet path 11, an oil outlet path 12 and an oil return path 15 are provided in the machine tool spindle, a plurality of oil holes are provided on the sleeve 1, an external hydraulic station is connected to the plurality of oil holes on the sleeve 1, the plurality of oil holes are divided into the oil inlet 13, the oil outlet 14 and the oil return port 16, the external hydraulic station inputs hydraulic oil into the machine tool spindle through the oil inlet 13 and the oil inlet path 11, the hydraulic oil is input into the oil inlet chamber through the oil inlet path 11 of the cylinder valve body 7, and drives the piston 8 to move, so that the hydraulic oil in the oil outlet chamber is output through the oil outlet path 12, and after passing through the oil outlet path 12 and the oil outlet 14, it is transported to the external hydraulic station.

[0035] Specifically, the machine tool spindle is also provided with an oil return path 15, and the sleeve 1 is provided with an oil return port 16, and the oil return port 16 is connected with the oil outlet cavity based on the oil return path 15. The cylinder valve body 7 is provided with a plurality of oil return channels, and the plurality of oil return channels are connected with the oil return path 15 in the sleeve 1. The hydraulic oil in the machine tool spindle passes through the plurality of oil return channels of the cylinder valve body 7 in sequence, so that the hydraulic oil can enter the oil return path 15, thereby realizing the recycling of the hydraulic oil inside the machine tool spindle and improving the utilization efficiency of the hydraulic oil.

[0036] Furthermore, the rear end cover 6 is embedded in the sleeve 1, and a through hole is opened on the rear end cover 6 to achieve the oil path conduction effect of the oil inlet path 11, the oil outlet path 12 and the oil return path 15 in the sleeve 1, thereby improving the stability and reliability of the structural connection between the rear end cover 6 and the sleeve 1.

[0037] The embodiment of the utility model provides a machine tool spindle, which connects the end face of the drive motor 9 with the machine tool spindle by embedding the rear end cover 6 in the sleeve 1, thereby avoiding a gap between the drive motor 9 and the machine tool spindle, improving the installation convenience of the drive motor 9, and improving the overall rigidity of the machine tool spindle.

[0038] In addition, the above embodiments of the present invention are introduced in detail. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A machine tool spindle, characterized in that: The machine tool spindle comprises a sleeve, a shaft core arranged in the sleeve and a driving motor mounted on the shaft core; One end of the shaft core extends outside the sleeve through a port at one end of the sleeve, a rear end cover is provided at the port position of the sleeve, the rear end cover is sleeved on the shaft core, and the rear end cover is embedded in the sleeve; The driving motor is arranged at one end of the shaft core extending outside the sleeve, and an end surface of one end of the driving motor is connected to the port end surface of the sleeve.

2. The machine tool spindle according to claim 1, characterized in that: A stroke adjustment rod is arranged in the main shaft of the machine tool, and the stroke adjustment rod is inserted in the shaft core.

3. The machine tool spindle according to claim 1, characterized in that: The machine tool spindle also includes a front end flange and a piston; The front end flange is matched with the other end port position of the sleeve, and the piston is arranged between the front end flange and the shaft core.

4. The machine tool spindle according to claim 3, characterized in that: A receiving groove is formed between the front end flange and the shaft core, and the piston is arranged in the receiving groove; The containing groove is divided into an oil inlet chamber and an oil outlet chamber based on the piston.

5. The machine tool spindle according to claim 4, characterized in that: A rotary oil cylinder structure is arranged in the spindle of the machine tool, and the rotary oil cylinder structure comprises an oil cylinder valve body, an oil inlet path and an oil outlet path arranged in the spindle of the machine tool; The oil inlet path is communicated with the oil inlet cavity, and the oil outlet path is communicated with the oil outlet cavity.

6. The machine tool spindle according to claim 5, characterized in that: The machine tool spindle is also provided with an oil return path, and the sleeve is provided with an oil return port, which is communicated with the oil outlet cavity based on the oil return path.

7. The machine tool spindle according to claim 6, characterized in that: The rear end cover is provided with a through hole, and one end of the sleeve is provided with an oil inlet and an oil outlet; The oil inlet is communicated with the oil inlet path based on the through hole, and the oil outlet is communicated with the oil outlet path based on the through hole.

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