High-precision horizontal double-sided numerical control drilling machine structure

Abstract

The utility model discloses a high-precision horizontal double-sided numerical control drilling machine structure, which relates to the technical field of numerical control drilling machine structures, and comprises a numerical control drilling machine structure body, a working table, a self-centering chuck and a numerical control rotary table, the numerical control drilling machine structure body is arranged at the top of the working table, and the numerical control rotary table is arranged at the top of the working table. The self-centering chuck is arranged on the top of the numerical control rotary table, and a limiting and positioning assembly is installed on the top of the numerical control rotary table. The self-centering chuck is conveniently disassembled, assembled and maintained by arranging the limiting and positioning assembly to be matched with the connecting and positioning assembly, and the problems that the self-centering chuck is inconvenient to conveniently disassemble, assemble and maintain in use of an existing numerical control drilling machine structure, and the self-centering chuck is not convenient to disassemble and maintain due to frequent use in actual use are solved. The problem that the use effect of the numerical control drilling machine structure is reduced due to the fact that the numerical control drilling machine structure is easy to disassemble, assemble and maintain at regular intervals is solved, and the effect of convenient disassembly and maintenance is achieved.

Description

Technical Field

[0001] This utility model relates to the field of CNC drilling machine structure technology, specifically a high-precision horizontal double-sided CNC drilling machine structure. Background Technology

[0002] The high-precision horizontal double-sided CNC drilling machine is a precision CNC equipment used for machining holes in metal parts. It adopts a horizontal structure design and is equipped with dual spindle boxes to achieve synchronous machining on both sides of the workpiece. Its core structure includes a rigid bed, a high-precision ball screw feed system, a servo-driven spindle unit, and a CNC control system. It is equipped with linear guides and precision bearings to ensure motion accuracy. The machine tool is suitable for multi-position precision machining of box-shaped and disc-shaped parts through dual-spindle synchronous feed, automatic tool setting, and error compensation technology.

[0003] For example, a novel horizontal double-head CNC high-speed drilling machine with publication number CN213916201U includes a base, a CNC rotary table sleeved on the upper end of the base, a self-centering chuck connected to the upper end of the CNC rotary table, and columns sleeved on both sides of the upper end of the base, with a machine head portion sleeved on the columns. The advantages of this invention compared to existing technologies are: this novel horizontal double-head CNC high-speed drilling machine can simultaneously process holes on both sides of a workpiece in a single clamping operation, or it can control one machine head for processing independently. Simultaneous processing at both ends improves processing efficiency. Furthermore, it has a simple structure, stable operation, and saves costs.

[0004] Based on the search of patent numbers, and combined with the shortcomings of existing technologies, the following findings were made;

[0005] The existing CNC drilling machine structure makes it inconvenient to easily disassemble and maintain the self-centering chuck. In actual use, due to frequent use, the self-centering chuck is prone to decreased accuracy and malfunctions, requiring regular disassembly and maintenance, which reduces the effectiveness of the CNC drilling machine structure. Utility Model Content

[0006] To address the problems mentioned in the background section, the present invention aims to provide a high-precision horizontal double-sided CNC drilling machine structure that offers the advantages of convenient disassembly and maintenance. This solves the problem that existing CNC drilling machine structures are not convenient for the easy disassembly and maintenance of the self-centering chuck, which is prone to accuracy degradation and malfunctions due to frequent use in actual applications, requiring regular disassembly and maintenance and thus reducing the effectiveness of the CNC drilling machine structure.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-precision horizontal double-sided CNC drilling machine structure, comprising a CNC drilling machine structure body, a worktable, a self-centering chuck, and a CNC rotary table. The CNC drilling machine structure body is mounted on the top of the worktable, the CNC rotary table is mounted on the top of the worktable, the self-centering chuck is disposed on the top of the CNC rotary table, a limit positioning component is installed on the top of the CNC rotary table, and a connecting positioning component is provided on the top of the CNC rotary table.

[0008] As a preferred embodiment of the present invention, the limiting and positioning component includes a limiting box, a limiting groove is formed on the top of the limiting box, a limiting block is installed on the outer side of the bottom of the self-centering chuck, the outer side of the surface of the limiting block is movably connected to the outer side of the inner wall of the limiting groove, a positioning block is installed on the outer side of the bottom of the inner wall of the limiting groove, a positioning groove is formed at the bottom of the limiting block, and the surface of the positioning block is located inside the positioning groove.

[0009] In a preferred embodiment of this utility model, the connecting positioning component includes a stepper motor, a high-precision reducer is installed at the output end of the stepper motor, a high-precision connecting rod is installed on the top of the high-precision reducer, a fixing block is installed at the bottom of the self-centering chuck, the outer side of the fixing block is installed with the inner side of the limiting block, a fixing groove is opened at the bottom of the fixing block, and the surface of the high-precision connecting rod is threadedly connected to the inside of the fixing groove.

[0010] In a preferred embodiment of this invention, a sealing ring is installed on the surface of the fixing block, and a sealing groove is formed at the top of the limiting groove, wherein the surface of the sealing ring is movably connected to the interior of the sealing groove.

[0011] As a preferred embodiment of this utility model, a positioning ring is installed on the outer side of the high-precision reducer, and a connecting groove is provided at the bottom of the inner wall of the limiting groove, and the surface of the positioning ring is movably connected to the inside of the connecting groove.

[0012] As a preferred embodiment of this invention, the interior of the limiting groove is coated with a wear-resistant layer, which is a ceramic coating, and a buffer pad is installed at the bottom of the inner wall of the limiting groove.

[0013] As a preferred embodiment of this invention, a positioning rod is installed at the bottom of the self-centering chuck, and a positioning hole is provided at the top of the limiting box, with the surface of the positioning rod located inside the positioning hole.

[0014] As a preferred embodiment of this invention, a pressure sensor is installed on the top of the positioning block, and the pressure sensor is electrically connected to a controller via a wire. The controller is installed on the front of the workbench and is electrically connected to a stepper motor via a wire.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model enables convenient disassembly and maintenance of the self-centering chuck by setting a limit positioning component in conjunction with a connecting positioning component. This solves the problem that the existing CNC drilling machine structure is not convenient for disassembly and maintenance of the self-centering chuck during use. In actual use, the self-centering chuck is prone to decreased accuracy and malfunction due to frequent use, requiring regular disassembly and maintenance, which reduces the performance of the CNC drilling machine structure. This invention achieves the effect of convenient disassembly and maintenance.

[0017] 2. By setting a limiting and positioning component, the user can move the limiting block into the limiting groove, so that the limiting groove precisely restricts the installation position of the self-centering chuck through the limiting block, ensuring the consistency of the self-centering chuck installation each time, thereby improving the machining accuracy. The limiting block and the limiting groove cooperate, and the positioning block and the positioning groove engage with each other, ensuring the accurate position of the self-centering chuck on the CNC rotary table and avoiding machining errors caused by installation deviations.

[0018] 3. This utility model, by setting up a connecting positioning component, allows the self-centering chuck to move the limiting block and the fixing block into the limiting groove during installation. The limiting groove restricts the surface movement of the limiting block, and the high-precision connecting rod engages with the bottom of the fixing groove. Then, by starting the stepper motor, the output end of the stepper motor drives the high-precision reducer to rotate. The rotation of the high-precision reducer drives the high-precision connecting rod to rotate, and the rotation of the high-precision connecting rod engages with the internal thread of the fixing groove, allowing the fixing block to move stably downwards and engage with the high-precision connecting rod through the fixing groove. The limiting groove and the limiting block provide a limit, preventing the fixing block from rotating with the high-precision connecting rod, thus enhancing the installation accuracy during use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. CNC drilling machine structure body; 2. Worktable; 3. Self-centering chuck; 4. CNC rotary table; 5. Limit and positioning assembly; 51. Limit box; 52. Limit groove; 53. Limit block; 54. Positioning block; 55. Positioning groove; 6. Connecting positioning assembly; 61. Stepper motor; 62. High-precision reducer; 63. High-precision connecting rod; 64. Fixing block; 65. Fixing groove; 7. Sealing ring; 8. Sealing groove; 9. Positioning ring; 10. Connecting groove; 11. Wear-resistant layer; 12. Buffer pad; 13. Positioning rod; 14. Positioning hole; 15. Pressure sensor; 16. Controller. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 3 As shown, the present invention provides a high-precision horizontal double-sided CNC drilling machine structure, including a CNC drilling machine structure body 1, a worktable 2, a self-centering chuck 3, and a CNC rotary table 4. The CNC drilling machine structure body 1 is installed on the top of the worktable 2, the CNC rotary table 4 is installed on the top of the worktable 2, the self-centering chuck 3 is set on the top of the CNC rotary table 4, a limit positioning component 5 is installed on the top of the CNC rotary table 4, and a connecting positioning component 6 is provided on the top of the CNC rotary table 4.

[0025] refer to Figure 3 The limiting and positioning component 5 includes a limiting box 51, a limiting groove 52 is formed on the top of the limiting box 51, a limiting block 53 is installed on the outer side of the bottom of the self-centering chuck 3, the outer side of the surface of the limiting block 53 is movably connected to the outer side of the inner wall of the limiting groove 52, a positioning block 54 is installed on the outer side of the bottom of the inner wall of the limiting groove 52, a positioning groove 55 is formed at the bottom of the limiting block 53, and the surface of the positioning block 54 is located inside the positioning groove 55.

[0026] As a technical optimization of this utility model, by setting a limiting positioning component 5, the user can move the limiting block 53 into the limiting groove 52, so that the limiting groove 52 precisely limits the installation position of the self-centering chuck 3 through the limiting block 53, ensuring the consistency of the self-centering chuck 3 installation each time, thereby improving the machining accuracy. The limiting block 53 cooperates with the limiting groove 52, and the positioning block 54 engages with the positioning groove 55 to ensure that the self-centering chuck 3 is accurately positioned on the CNC rotary table 4, avoiding machining errors caused by installation deviations.

[0027] refer to Figure 3 The connecting positioning component 6 includes a stepper motor 61, a high-precision reducer 62 is installed at the output end of the stepper motor 61, a high-precision connecting rod 63 is installed on the top of the high-precision reducer 62, a fixing block 64 is installed at the bottom of the self-centering chuck 3, the outer side of the fixing block 64 is installed with the inner side of the limiting block 53, a fixing groove 65 is opened at the bottom of the fixing block 64, and the surface of the high-precision connecting rod 63 is threadedly connected to the inside of the fixing groove 65.

[0028] As a technical optimization of this utility model, by setting the connecting positioning component 6, the self-centering chuck 3 can drive the limiting block 53 and the fixing block 64 to move into the limiting groove 52 during installation. The limiting groove 52 limits the surface movement of the limiting block 53. The high-precision connecting rod 63 engages with the bottom of the fixing groove 65. Then, by starting the stepper motor 61, the output end of the stepper motor 61 drives the high-precision reducer 62 to rotate. The rotation of the high-precision reducer 62 can drive the high-precision connecting rod 63 to rotate. The rotation of the high-precision connecting rod 63 engages with the internal thread of the fixing groove 65, so that the fixing block 64 moves downward stably and engages with the high-precision connecting rod 63 through the fixing groove 65. The limiting groove 52 and the limiting block 53 provide limiting, preventing the fixing block 64 from rotating with the high-precision connecting rod 63, thus enhancing the installation accuracy during use.

[0029] refer to Figure 3 A sealing ring 7 is installed on the surface of the fixing block 64, and a sealing groove 8 is opened on the top of the limiting groove 52. The surface of the sealing ring 7 is movably connected to the inside of the sealing groove 8.

[0030] As a technical optimization of this utility model, by setting a sealing ring 7 and a sealing groove 8, when the fixed block 64 engages with the limiting groove 52, the sealing ring 7 can be driven to engage with the sealing groove 8. The sealing ring 7 and the sealing groove 8 can effectively prevent dust, debris and other impurities from entering the connection between the limiting groove 52 and the self-centering chuck 3, reduce wear, and extend service life. During the drilling process, the debris and dust generated will not enter the connection gap, reducing the risk of failure caused by impurities.

[0031] refer to Figure 3 A positioning ring 9 is installed on the outside of the high-precision reducer 62, and a connecting groove 10 is opened at the bottom of the inner wall of the limiting groove 52. The surface of the positioning ring 9 is movably connected to the inside of the connecting groove 10.

[0032] As a technical optimization of this utility model, by setting a positioning ring 9 and a connecting groove 10, the connecting ring can limit the movement of the surface of the positioning ring 9. After the positioning ring 9 is limited, it can drive the outer side of the high-precision reducer 62 to be limited, which further enhances the connection stability between the high-precision reducer 62 and the limiting groove 52, and improves the rigidity of the overall structure. The positioning ring 9 and the connecting groove 10 are closely matched, which can better disperse stress when the self-centering chuck 3 rotates and is subjected to force, reduce the shaking and deformation of the parts, and make the drilling machine more stable and reliable during the processing.

[0033] refer to Figure 3 The inside of the limiting groove 52 is coated with a wear-resistant layer 11, which is a ceramic coating. A buffer pad 12 is installed at the bottom of the inner wall of the limiting groove 52.

[0034] As a technical optimization of this utility model, by setting the wear-resistant layer 11 and the buffer pad 12, the friction between the limiting block 53 and the limiting groove 52 is reduced, thus lowering the degree of wear. Simultaneously, the buffer pad 12 can absorb the impact force generated during the installation and operation of the self-centering chuck 3, protecting the equipment components. The ceramic-coated wear-resistant layer 11 improves the wear resistance of the limiting groove 52, extending its service life; the buffer pad 12 effectively reduces the damage to the equipment from impact forces, improving the equipment's reliability.

[0035] refer to Figure 3 A positioning rod 13 is installed at the bottom of the self-centering chuck 3, and a positioning hole 14 is opened at the top of the limit box 51. The surface of the positioning rod 13 is located inside the positioning hole 14.

[0036] As a technical optimization of this utility model, by setting a positioning rod 13 and a positioning hole 14, the positioning rod 13 can be pushed into the positioning hole 14 when installing the self-centering chuck 3, which further improves the installation accuracy of the self-centering chuck 3 and realizes multi-directional precise positioning. The cooperation between the positioning rod 13 and the positioning hole 14 restricts the rotation of the self-centering chuck 3 in the horizontal direction, ensuring that the installation position of the self-centering chuck 3 is more accurate and improving the processing accuracy.

[0037] refer to Figure 3 A pressure sensor 15 is installed on the top of the positioning block 54. The pressure sensor 15 is electrically connected to a controller 16 via a wire. The controller 16 is installed on the front of the workbench 2 and is electrically connected to the stepper motor 61 via a wire.

[0038] As a technical optimization of this utility model, by setting a pressure sensor 15 and a controller 16, the pressure sensor 15 can detect the pressure between the positioning block 54 and the positioning groove 55 in real time. When the pressure sensor 15 detects that the pressure reaches the threshold, it sends a signal to the controller 16, and the controller 16 will control the stepper motor 61 to stop working in time, thus achieving the effect of accurate and convenient installation.

[0039] The working principle and usage process of this utility model are as follows: When installing the self-centering chuck 3, the bottom limiting block 53 is aligned with the limiting groove 52 at the top of the limiting box 51 and slid in. At the same time, the positioning rod 13 is inserted into the positioning hole 14 at the top of the limiting box 51. The stepper motor 61 is started, driving the high-precision reducer 62, which in turn causes the high-precision connecting rod 63 to rotate. Because the high-precision connecting rod 63 is threadedly connected to the fixing groove 65 at the bottom of the fixing block 64, the fixing block 64 descends steadily under the threaded transmission until it is in contact with the bottom of the limiting groove 52. During this period, the limiting groove 52 restricts the movement of the limiting block 53, preventing the fixing block 64 from rotating with the high-precision connecting rod 63, thus ensuring installation accuracy. The sealing ring 7 cooperates with the sealing groove 8 to prevent impurities from entering the connection part. The positioning ring 9 and the connecting groove 10 enhance the connection stability. During the installation and processing of the self-centering chuck 3, the pressure sensor 15 at the top of the positioning block 54 monitors the positioning block 54 and the limiting groove 10 in real time. The pressure between the bottom positioning groove 55 of block 53 is monitored. If the pressure is abnormal, such as too high or too low, the pressure sensor 15 will immediately transmit a signal to the controller 16. After receiving the signal, the controller 16 will quickly control the stepper motor 61 to stop working and display an abnormality to remind the user, so as to avoid processing accidents caused by abnormalities and ensure processing quality and equipment safety. When maintenance is required on the self-centering chuck 3, the stepper motor 61 reverses, driving the high-precision reducer 62 and the high-precision connecting rod 63 to rotate in the opposite direction. Under the action of the thread, the fixing block 64 rises and disengages from the bottom of the limiting groove 52. When the fixing block 64 rises to a certain extent, it releases the fixation of the self-centering chuck 3. At this time, the self-centering chuck 3 can be easily removed along the direction of the limiting groove 52, making the disassembly process of the self-centering chuck 3 simple and convenient, greatly reducing maintenance time and difficulty, achieving the effect of convenient disassembly and maintenance, and enhancing the use effect of the CNC drilling machine structure.

[0040] In summary, this high-precision horizontal double-sided CNC drilling machine structure, through the setting of limit positioning component 5 and connecting positioning component 6, allows for convenient disassembly and maintenance of the self-centering chuck 3. This solves the problem that existing CNC drilling machine structures are inconvenient to disassemble and maintain the self-centering chuck during use. In actual use, the self-centering chuck is prone to accuracy degradation and malfunctions due to frequent use, requiring regular disassembly and maintenance, which reduces the effectiveness of the CNC drilling machine structure.

[0041] 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 high-precision horizontal double-sided numerical control drilling machine structure, comprising a numerical control drilling machine structure body (1), a workbench (2), a self-centering chuck (3) and a numerical control rotary table (4), characterized in that: The numerical control drilling machine structure body (1) is installed on the top of the workbench (2), the numerical control rotary table (4) is installed on the top of the workbench (2), the self-centering chuck (3) is arranged on the top of the numerical control rotary table (4), the top of the numerical control rotary table (4) is provided with a limiting positioning assembly (5), and the top of the numerical control rotary table (4) is provided with a connecting positioning assembly (6).

2. The high-precision horizontal double-sided numerical control drilling machine structure according to claim 1, characterized in that: The limiting positioning assembly (5) comprises a limiting box (51), a limiting groove (52) is formed in the top of the limiting box (51), a limiting block (53) is installed on the outer side of the bottom of the self-centering chuck (3), the outer side of the surface of the limiting block (53) is movably connected with the outer side of the inner wall of the limiting groove (52), a positioning block (54) is installed on the outer side of the bottom of the inner wall of the limiting groove (52), a positioning groove (55) is formed in the bottom of the limiting block (53), and the surface of the positioning block (54) is located in the inside of the positioning groove (55).

3. The high-precision horizontal double-sided numerical control drilling machine structure according to claim 2, characterized in that: The connecting positioning assembly (6) comprises a stepping motor (61), a high-precision reducer (62) is installed at the output end of the stepping motor (61), a high-precision connecting rod (63) is installed at the top of the high-precision reducer (62), a fixed block (64) is installed at the bottom of the self-centering chuck (3), the outer side of the fixed block (64) is installed on the inner side of the limiting block (53), a fixed groove (65) is formed in the bottom of the fixed block (64), and the surface of the high-precision connecting rod (63) is screw-connected with the inside of the fixed groove (65).

4. The high-precision horizontal double-sided numerical control drilling machine structure according to claim 3, characterized in that: The surface of the fixed block (64) is provided with a sealing ring (7), the top of the limiting groove (52) is provided with a sealing groove (8), and the surface of the sealing ring (7) is movably connected with the inside of the sealing groove (8).

5. The high-precision horizontal double-sided numerical control drilling machine structure according to claim 3, characterized in that: The outer side of the high-precision reducer (62) is provided with a positioning ring (9), the bottom of the inner wall of the limiting groove (52) is provided with a connecting groove (10), and the surface of the positioning ring (9) is movably connected with the inside of the connecting groove (10).

6. The high-precision horizontal double-sided numerical control drilling machine structure according to claim 2, characterized in that: The inside of the limiting groove (52) is sprayed with a wear-resistant layer (11), the wear-resistant layer (11) is a ceramic coating, and the bottom of the inner wall of the limiting groove (52) is provided with a buffer pad (12).

7. The high-precision horizontal double-sided numerical control drilling machine structure according to claim 2, characterized in that: The bottom of the self-centering chuck (3) is provided with a positioning rod (13), the top of the limiting box (51) is provided with a positioning hole (14), and the surface of the positioning rod (13) is located in the inside of the positioning hole (14).

8. The high-precision horizontal double-sided numerical control drilling machine structure according to claim 3, characterized in that: The top of the positioning block (54) is provided with a pressure sensor (15), the pressure sensor (15) is electrically connected with a controller (16) through wires, the controller (16) is installed on the front surface of the workbench (2), and the controller (16) is electrically connected with the stepping motor (61) through wires.

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