Machining end mounting structure of numerical control rotary table

Abstract

The utility model belongs to the technical field of numerical control rotary tables, and particularly relates to a numerical control rotary table machining end installation structure which comprises a shell, an installation end, a machining end and a driving assembly, the installation end and the machining end are arranged on the shell, the machining end is provided with a table board with rotational freedom, the driving assembly is arranged on the shell of the machining end, and an installation groove is formed in the shell of the machining end. The table top is arranged in the mounting groove through the driving assembly, an inner stator of the driving motor is fixed to the fixing base, an outer rotor of the driving motor is fixed to the rotating base, and the outer ring base is detachably and fixedly connected with the side wall of the mounting groove through a first bolt set. And the table top is detachably and fixedly connected with the rotating seat by virtue of a second bolt group. According to the driving assembly, the driving assembly is integrally installed in the installation groove, disassembly can be completed only by disassembling the first bolt set and the second bolt set during installation, maintenance and overhaul, the number of contact faces needing to be adjusted and matched is reduced, and the precision of the numerical control rotary table can be guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of CNC rotary table technology, specifically relating to a CNC rotary table machining end mounting structure. Background Technology

[0002] CNC rotary tables are driven by torque motors and have advantages such as high load-bearing capacity, fast response speed, and high angular accuracy. They can be used in conjunction with CNC machine tools and industrial robots to achieve high-precision, automated multi-axis machining, injecting new momentum into intelligent manufacturing. However, due to the presence of components such as drive motors, brake mechanisms, and hydraulic supply lines, the internal structure of CNC rotary tables is complex, with overlapping layers and intricate piping, making disassembly and assembly difficult during maintenance and repair, and compromising installation accuracy. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model provides a CNC rotary table machining end mounting structure, which integrates the internal parts of the CNC rotary table into a table surface, drive assembly and housing, which is convenient for disassembly and assembly, reduces the mating surfaces, and helps to ensure installation accuracy.

[0004] The specific technical solution adopted in this utility model is as follows:

[0005] A CNC rotary table machining end mounting structure includes a housing and a mounting end and a machining end disposed on the housing. The machining end is provided with a table surface having rotational degrees of freedom. It also includes a drive assembly. The housing of the machining end is provided with a mounting groove. The table surface is disposed in the mounting groove by means of the drive assembly. The drive assembly includes a fixed base, a rotating base, an outer ring base, and a drive motor. The inner stator of the drive motor is fixed to the fixed base, and the outer rotor of the drive motor is fixed to the rotating base. The outer ring base is annularly sleeved on the outer periphery of the fixed base. The outer ring base is detachably fixedly connected to the side wall of the mounting groove by means of a first bolt group. The table surface is detachably fixedly connected to the rotating base by means of a second bolt group.

[0006] The outer ring seat is provided with a sealing ring, the sealing ring is provided with a protruding sealing edge, and the back side of the platform is provided with a sealing groove that nests and mates with the sealing edge.

[0007] The drive assembly further includes a hydraulic distributor, which includes a spindle and a rotating sleeve. A gap-type distribution cavity is formed between the spindle and the rotating sleeve. The spindle is fixedly connected to a fixed seat, and the rotating sleeve is fixedly connected to a rotating seat. The outer ring seat, the fixed seat, and the spindle are provided with passages communicating with the distribution cavity. A passage is provided between the rotating sleeve, the rotating seat, and the platform to communicate with the distribution cavity.

[0008] The mounting groove is provided with a passage that communicates with the inner cavity of the housing and extends to the mounting end of the housing.

[0009] The housing is provided with two sets of machining ends, namely the A1 axis machining end and the A2 axis machining end, and the mounting end is the B axis mounting end. The A1 axis machining end and the A2 axis machining end are located on both sides of the housing, and the B axis mounting end is arranged in a T-shape with the A1 axis machining end and the A2 axis machining end.

[0010] The inner wall of the fixed base is also fixed with a copper brake, which is in clearance fit with the outer rotor of the drive motor.

[0011] The beneficial effects of this utility model are:

[0012] This utility model adopts an integrated design concept, which installs the entire drive assembly in the mounting slot. During installation and maintenance, disassembly can be completed by removing only the first and second bolt groups, which improves maintenance efficiency, reduces the number of contact surfaces that need to be adjusted during maintenance, and helps to ensure the accuracy of the CNC rotary table. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the disassembled version of this utility model;

[0015] Figure 3 A schematic diagram showing the piping connections for the distributor;

[0016] In the attached diagram, 1 is the housing, 2 is the platform, 3 is the drive assembly, 301 is the fixed seat, 302 is the rotating seat, 303 is the outer ring seat, 304 is the inner stator, 305 is the outer rotor, 306 is the spindle, 307 is the rotating sleeve, 308 is the distribution cavity, 309 is the copper brake, 4 is the mounting groove, 5 is the first bolt group, 6 is the second bolt group, 7 is the sealing ring, 8 is the sealing edge, and 9 is the sealing groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0018] Specific implementation examples Figure 1 and Figure 2As shown, this utility model is a CNC rotary table machining end mounting structure, including a housing 1 and a mounting end and a machining end disposed on the housing 1. The machining end is provided with a table surface 2 having rotational degrees of freedom, and also includes a drive assembly 3. The housing 1 of the machining end is provided with a mounting groove 4. The table surface 2 is disposed in the mounting groove 4 by means of the drive assembly 3. The drive assembly 3 includes a fixed base 301, a rotating base 302, an outer ring base 303 and a drive motor. The inner stator 304 of the drive motor is fixed to the fixed base 301, and the outer rotor 305 of the drive motor is fixed to the rotating base 302. The outer ring base 303 is annularly sleeved on the outer periphery of the fixed base 301. The outer ring base 303 is detachably fixedly connected to the side wall of the mounting groove 4 by means of a first bolt group 5. The table surface 2 is detachably fixedly connected to the rotating base 302 by means of a second bolt group 6.

[0019] This utility model uses a fixed base 301 and a rotating base 302 to assemble the drive motor into an integral structure. Then, the outer ring base 303 fixes the overall structure of the drive motor in the mounting groove 4 of the housing 1. This allows the drive assembly 3 to form a stable fixed connection with the housing using only the first bolt group 5. If only the power supply and cooling pipelines of the drive motor inside the housing 1 need to be maintained, there is no need to further disassemble the drive assembly 3, which reduces the workload of maintenance, lowers the difficulty of installation and debugging, and helps maintain the accuracy of the equipment. The embodiment shown in this utility model is a horizontal five-axis linkage CNC rotary table, which uses an external rotor 305 to drive the motor. The pipes and wires of the drive motor are led out through the openings reserved in the fixed base 301, and extend to the mounting end of the housing 1 through the passage that connects the mounting groove 4 and the inner cavity of the housing 1. From the mounting end, they are led out to the power supply and cooling circulation equipment.

[0020] When it is necessary to open drive assembly 3 for maintenance, drive assembly 3 can be easily removed, returned to the factory, and replaced with a good drive assembly 3 to quickly restart the equipment. This avoids disassembly and assembly of parts on site, helps to reduce downtime and speed up the production pace.

[0021] Furthermore, such as Figure 2 As shown, a sealing ring 7 is provided on the outer ring seat 303, and a protruding sealing edge 8 is provided on the sealing ring 7. A sealing groove 9 is provided on the back side of the platform 2 to nest and cooperate with the sealing edge 8.

[0022] The sealing edge 8 and the sealing groove 9 are inserted to form a labyrinth sealing structure. The drive motor and other equipment are located inside the sealing structure, thereby preventing debris generated during machine tool processing from entering the equipment and improving the equipment's durability.

[0023] Furthermore, such as Figure 2 and Figure 3As shown, the drive assembly 3 also includes a hydraulic distributor, which includes a spindle 306 and a rotating sleeve 307. An annular gap distribution cavity 308 is formed between the spindle 306 and the rotating sleeve 307. The spindle 306 is fixedly connected to the fixed seat 301, and the rotating sleeve 307 is fixedly connected to the rotating seat 302. The outer ring seat 303, the fixed seat 301, and the spindle 306 are provided with passages communicating with the distribution cavity 308. A passage is provided between the rotating sleeve 307, the rotating seat 302, and the platform 2 to communicate with the distribution cavity 308.

[0024] The mandrel 306 is fixedly connected to the fixed base 301, and the rotating sleeve 307 is fitted onto the mandrel 306 and has a degree of rotational freedom. The table 2 is provided with a hydraulic interface for use when setting hydraulic clamps on the table 2. Figure 3 The bolded dashed line path shown opens up a passageway to supply pressure to equipment such as hydraulic clamps. Multiple sets of the above passageway can be set according to the number of distribution chambers 308, thereby meeting more flexible and diverse hydraulic equipment installation needs.

[0025] Furthermore, such as Figure 1 As shown, the housing 1 is provided with two sets of machining ends, namely the A1-axis machining end and the A2-axis machining end, and the mounting end is the B-axis mounting end. The A1-axis machining end and the A2-axis machining end are located on both sides of the housing 1, and the B-axis mounting end is arranged in a T-shape with the A1-axis machining end and the A2-axis machining end. The B-end is also provided with a drive motor. By rotating the drive motor in both directions at the B-end, the rapid switching between the A1-axis and the A2-axis at the machining station can be achieved.

[0026] Furthermore, a copper brake 309 is fixed to the inner wall of the fixed base 301, and the copper brake 309 is in clearance fit with the outer rotor 305 of the drive motor. When hydraulic oil is introduced between the copper brake 309 and the side wall of the fixed base 301, the copper brake 309 arches inward and clamps the outer rotor 305, thereby braking and fixing the outer rotor 305 and the table 2 fixed to the outer rotor 305 to prevent displacement during processing.

Claims

1. A numerical control rotary table machining end mounting structure, comprising a housing (1) and a mounting end and a machining end arranged on the housing (1), the machining end being provided with a table top (2) having a rotational degree of freedom, characterized in that: The machining end of the shell (1) is provided with a mounting groove (4), the table (2) is arranged in the mounting groove (4) by means of the driving assembly (3), the driving assembly (3) comprises a fixed seat (301), a rotating seat (302), an outer ring seat (303) and a driving motor, the inner stator (304) of the driving motor is fixed with the fixed seat (301), the outer rotor (305) of the driving motor is fixed with the rotating seat (302), the outer ring seat (303) is annularly sleeved on the outer periphery of the fixed seat (301), the outer ring seat (303) is detachably fixedly connected with the side wall of the mounting groove (4) by means of the first bolt group (5), and the table (2) is detachably fixedly connected with the rotating seat (302) by means of the second bolt group (6).

2. The machining end mounting structure of a numerically controlled rotary table according to claim 1, characterized by: The outer ring seat (303) is provided with a sealing ring (7), the sealing ring (7) is provided with a protruding sealing edge (8), and the back side of the table (2) is provided with a sealing groove (9) nested with the sealing edge (8).

3. The machining end mounting structure of a numerically controlled rotary table according to claim 1, characterized in that: The driving assembly (3) further comprises a hydraulic distributor, the hydraulic distributor comprises a mandrel (306) and a rotating sleeve (307), the gap type distribution cavity (308) is formed between the mandrel (306) and the rotating sleeve (307), the mandrel (306) is fixedly connected with the fixed seat (301), the rotating sleeve (307) is fixedly connected with the rotating seat (302), the outer ring seat (303), the fixed seat (301) and the mandrel (306) are provided with passages in communication with the distribution cavity (308), and the rotating sleeve (307), the rotating seat (302) and the table (2) are provided with passages in communication with the distribution cavity (308).

4. The machining end mounting structure of a numerically controlled rotary table according to claim 1, characterized by: The mounting groove (4) is provided with a passage through the inner cavity of the shell (1), and the passage extends to the mounting end of the shell (1).

5. The machining end mounting structure of a numerically controlled rotary table according to claim 1, characterized by: The shell (1) is provided with two groups of machining ends, which are an A1 shaft machining end and an A2 shaft machining end, the mounting end is a B shaft mounting end, the A1 shaft machining end and the A2 shaft machining end are arranged on both sides of the shell (1), and the B shaft mounting end is arranged in a T shape with the A1 shaft machining end and the A2 shaft machining end.

6. The machining end mounting structure of a numerically controlled rotary table according to claim 1, characterized by: The inner side wall of the fixed seat (301) is further fixed with a copper brake (309), and the copper brake (309) is gap-connected with the outer rotor (305) of the driving motor.

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