A high-strength base and a desktop machine tool having the base

Abstract

This utility model discloses a high-strength base and a desktop machine tool having the base. The high-strength base includes a base body with rail mounting positions on both sides. A boss is provided at the middle of the front end of the base body. The boss or the boss and the base body have a receiving cavity with a front opening. A reinforcing rib structure A is provided at the rear end of the boss. The reinforcing rib structure A includes a left reinforcing rib group A extending backward at an incline from the middle of the boss towards the left rail mounting position and a right reinforcing rib group A extending backward at an incline from the middle of the boss towards the right rail mounting position. Arranging the reinforcing rib structure A in the force transmission direction of the double rotary table can effectively improve the rigidity and strength of the base, thereby extending the service life of the machine tool.

Description

Technical Field

[0001] This utility model relates to the technical field of machining, and in particular to a high-strength base and a desktop machine tool having the base. Background Technology

[0002] The existing five-axis CNC machining center is a high-tech, high-precision machine tool specifically designed for machining complex curved surfaces. This type of machine tool has a significant impact on a country's aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and other industries.

[0003] Traditional machine tools are large and require a lot of space, while desktop machine tools are small, occupying only the area of ​​a desk, and are suitable for processing small objects. Existing desktop machine tools, such as the dual harmonic five-axis small machining equipment disclosed in Chinese patent CN217572118U, include: a gantry-type bed, a first harmonic reducer installed at the bottom inside the gantry, the B-axis of which is fixedly connected to one end of a connector, the other end of which is connected to a second harmonic reducer, the connector and the second harmonic reducer extending outside the gantry, the C-axis of the second harmonic reducer connected to a turntable for fixing the workpiece; and a movable machine head for mounting cutting tools is installed above the gantry.

[0004] While pursuing miniaturization, improving the service life of the machine tool frame is a technical problem that needs to be solved. The rigidity and strength of the base are key factors in the service life of the machine tool, so it is necessary to improve the existing machine tool base. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength base and a desktop machine tool with the base. By arranging the reinforcing rib structure A in the force transmission direction of the double rotary table, the rigidity and strength of the base can be effectively improved, thereby extending the service life of the machine tool.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-strength base, including a base body, rail mounting positions provided on both sides of the base body, a boss provided at the middle of the front end of the base body, the boss or the boss and the base body having a receiving cavity with a front opening, and a reinforcing rib structure A provided at the rear end of the boss, the reinforcing rib structure A including a left reinforcing rib group A extending backward at an incline from the middle of the boss towards the left rail mounting position and a right reinforcing rib group A extending backward at an incline from the middle of the boss towards the right rail mounting position.

[0007] Furthermore, the left reinforcing rib group A includes multiple spaced-apart first reinforcing ribs, and the right reinforcing rib group A includes multiple spaced-apart second reinforcing ribs.

[0008] Furthermore, the height of the first and second reinforcing ribs decreases from the front end to the rear end.

[0009] Furthermore, the lower end of the boss protrudes from the base body, and the lower end of the base body is provided with a reinforcing rib structure B. The reinforcing rib structure B includes a left reinforcing rib group B extending from the middle position of the boss to the left side of the base body and a right reinforcing rib group B extending from the middle position of the boss to the right side of the base body.

[0010] Furthermore, the left reinforcing rib group B includes multiple spaced third reinforcing ribs, and the right reinforcing rib group B includes multiple spaced fourth reinforcing ribs.

[0011] Furthermore, a mounting frame is provided on the rear side of the boss portion, the mounting frame passes through part of the reinforcing rib structure and extends rearward, and a channel communicating with the receiving cavity is provided inside the mounting frame.

[0012] Furthermore, a hollow area is provided at the lower end of the middle position of the base body, and long strip-shaped support parts are formed on both sides of the base body corresponding to the hollow area. The track mounting position is located at the upper end of the two strip-shaped support parts.

[0013] A desktop machine tool includes a dual rotary table mechanism, a machine head, an X-axis running mechanism, a Y-axis running mechanism, a Z-axis running mechanism, an electrical control module, and a high-strength base as described in any one of the above. The dual rotary table mechanism includes a turntable for mounting workpieces, a first rotary table for driving the turntable to rotate around the Z-axis, and a second rotary table for driving the turntable and the first rotary table to rotate around the X-axis. The second rotary table is fixedly installed in a receiving cavity. The X-axis running mechanism is installed on the base body for driving the machine head to reciprocate along the X-axis, the Y-axis running mechanism is for driving the machine head to reciprocate along the Y-axis, and the Z-axis running mechanism is for driving the machine head to reciprocate along the Z-axis.

[0014] Furthermore, the X-axis running mechanism includes a first slide rail assembly and a first drive assembly. The first slide rail assembly is respectively installed on the two side rail mounting positions. The Y-axis running mechanism is installed on the first slide rail assembly and is driven to move along the X-axis direction by the first drive assembly. The Z-axis running mechanism is installed on the upper end of the Y-axis running mechanism and is driven to move along the Y-axis direction by the Y-axis running mechanism. The machine head is installed on the Z-axis running mechanism and moves along the Z-axis direction by the Z-axis running mechanism.

[0015] Furthermore, the second turntable includes a second motor fixedly mounted on the base body and a rotating body connected to the output end of the second motor. The rotating body includes a first rotating body extending along the X-axis and a second rotating body extending along the Z-axis. The first turntable includes a first motor fixedly mounted on the second rotating body, and a turntable is connected to the output end of the first motor.

[0016] In summary, this utility model has the following beneficial effects:

[0017] A high-strength base and a desktop machine tool having the base are disclosed. The reinforcing rib structure A is arranged in the force transmission direction of the dual rotary table mechanism, which is also the force transmission direction of the corresponding accommodating cavity of the base body. This effectively improves the rigidity and strength of the base, thereby extending the service life of the machine tool. Specifically, during workpiece processing, the force on the dual rotary tables is transmitted to the track mounting positions on both sides of the base body, and finally to the desktop. This invention provides a left reinforcing rib group A extending backward at the left track mounting position and a right reinforcing rib group A extending backward at the right track mounting position on the base body. This allows the force on the dual rotary table mechanism to be transmitted to the corresponding track mounting positions through the left and right reinforcing rib groups A. Arranging the reinforcing rib structure A in the force transmission direction optimizes stress distribution, enhances structural stability, and improves load-bearing capacity. Attached Figure Description

[0018] Figure 1 This is a top view of the base body of this utility model.

[0019] Figure 2 This is a bottom view of the base body of this utility model.

[0020] Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 4 This is a front view of the desktop machine tool of this utility model.

[0022] Figure 5 This is a front structural diagram of the desktop machine tool of this utility model.

[0023] Figure 6 This is a schematic diagram of the back structure of the desktop machine tool of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the rotating body of this utility model.

[0025] Figure 8 This is a schematic diagram of the desktop machine tool of this utility model placed on a desktop.

[0026] In the diagram: 10. Base body; 11. Rail mounting position; 12. Boss; 13. Accommodating cavity; 14. Reinforcing rib structure A; 141. Left reinforcing rib group A; 142. Right reinforcing rib group A; 15. Reinforcing rib structure B; 151. Left reinforcing rib group B; 152. Right reinforcing rib group B; 16. Mounting frame; 17. Hollowed-out area; 18. Hollowed-out groove; 20. Double turntable mechanism; 21. Turntable; 22. First turntable; 23. Second turntable; 231. Second motor; 232. Rotating body; 2321. First rotating body; 2322. Second rotating body; 30. Machine head; 40. X-axis running mechanism; 41. First slide rail assembly; 42. First drive assembly; 50. Y-axis running mechanism; 60. Z-axis running mechanism. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be understood that this application is based on Figure 1 Based on this, the left side and left end are the side of the left reinforcing rib group A141, the right side and right end are the side of the right reinforcing rib group A142, the front side and front end are the side of the boss part 12, and the rear side and rear end are the side away from the boss part 12.

[0031] like Figures 1-8As shown, a high-strength base includes a base body 10. Track mounting positions 11 are provided on both sides of the base body 10. A boss portion 12 is provided at the center of the front end of the base body 10. It should be understood that the "center position" in this application does not specifically refer to the exact center of the base body 10, but rather to a central area, which can be slightly to the left, slightly to the right, or even the exact center. The boss portion 12, or the boss portion 12 cooperating with the base body 10, is provided with a receiving cavity 13 with a front opening. That is, in some embodiments, the receiving cavity 13 is located on the boss portion 12; in other embodiments, the receiving cavity 13 is located at the connection between the boss portion 12 and the base body 10, i.e., part of it is located on the boss portion 12, and the remaining part is located on the base body 10. The receiving cavity 13 is used to install the second turntable 23 of the dual turntable.

[0032] The rear end of the boss portion 12 is provided with a reinforcing rib structure A14. The reinforcing rib structure A14 includes a left reinforcing rib group A141 that extends backward at an incline from the middle position of the boss portion 12 toward the left track mounting position 11 and a right reinforcing rib group A142 that extends backward at an incline from the middle position of the boss portion 12 toward the right track mounting position 11. Specifically, the left track mounting position 11 is located to the left of the left reinforcing rib group A141, and the right track mounting position 11 is located to the right of the right reinforcing rib group A142.

[0033] This invention arranges the reinforcing rib structure A14 in the force transmission direction of the double rotary table mechanism 20, which can effectively improve the rigidity and strength of the base, thereby extending the service life of the machine tool. Specifically, when the workpiece is being processed, the force on the receiving cavity 13 of the base body 10 is transmitted to the track mounting positions 11 on both sides of the base body 10, and finally to the table. This invention provides a left reinforcing rib group A141 extending backward along the left track mounting position 11 and a right reinforcing rib group A142 extending backward along the right track mounting position 11 on the base body 10, so that the force on the location of the double rotary table mechanism 20 is transmitted to the corresponding track mounting positions 11 through the left reinforcing rib group A141 and the right reinforcing rib group A142. Setting the reinforcing rib structure A14 in the force transmission direction can optimize stress distribution, enhance structural stability, and improve load-bearing capacity.

[0034] In some implementations, the left reinforcing rib group A141 includes multiple spaced first reinforcing ribs, and the right reinforcing rib group A142 includes multiple spaced second reinforcing ribs. The angle between the first reinforcing rib and the boss 12 is larger the closer it is to the middle of the boss 12. Correspondingly, the angle between the second reinforcing rib and the boss 12 is larger the closer it is to the middle of the boss 12. The purpose of this arrangement is to allow the first and second reinforcing ribs to transmit force to a wider area of ​​the track mounting position 11.

[0035] In some implementations, the height of the first and second reinforcing ribs decreases from the front end to the rear end. It should be understood that the decrease here does not specifically refer to a gradual decrease, but can be a segmented decrease or an extension to the same height followed by a decrease. Specifically, the left side of the first reinforcing rib group A is flush with the upper surface of the base body 10, and similarly, the right side of the second reinforcing rib group A is flush with the upper surface of the base body 10.

[0036] In some embodiments, the base body 10 is provided with a hollow groove 18 in the area between the right track mounting position 11 and the second reinforcing rib group A. The hollow groove 18 extends along the X-axis length direction and passes through the front and rear ends of the base body 10. The hollow groove 18 is used to install the first drive component 42. The purpose of doing so is to make the layout more reasonable, so that the parts are more compact and the space utilization rate is higher, thereby facilitating the miniaturization of desktop machine tools.

[0037] In some implementations, the lower end of the boss portion 12 protrudes from the base body 10, and the lower end of the base body 10 is provided with a reinforcing rib structure B15. The reinforcing rib structure B15 includes a left reinforcing rib group B151 extending from the middle position of the boss portion 12 to the left side of the base body 10 and a right reinforcing rib group B152 extending from the middle position of the boss portion 12 to the right side of the base body 10. By setting the reinforcing rib structure B15, the stress distribution can be further optimized, the structural stability of the base can be enhanced, and the load-bearing capacity can be improved. At the same time, the strength of the base can be further improved. In this embodiment, the left reinforcing rib group B151 extends directly to the leftmost side of the base body 10, and the right reinforcing rib group B152 extends to the rightmost side of the base body 10.

[0038] In some implementations, the left reinforcing rib group B151 includes multiple spaced third reinforcing ribs, and the right reinforcing rib group B152 includes multiple spaced fourth reinforcing ribs.

[0039] In some implementations, a mounting frame 16 is provided on the rear side of the boss portion 12. The mounting frame 16 passes through part of the reinforcing rib structure and extends rearward. A channel communicating with the receiving cavity 13 is provided inside the mounting frame 16. The mounting frame 16 is used to install the second motor 231.

[0040] In some implementations, a hollow area 17 is provided at the lower end of the middle position of the base body 10, and elongated support parts are formed on both sides of the base body 10 corresponding to the hollow area 17. The track mounting position 11 is provided at the upper end of the two elongated support parts. By setting the hollow area 17, material costs can be reduced and weight can be reduced, and the stability of the base can be enhanced.

[0041] A desktop machine tool includes a dual rotary table mechanism 20, a machine head 30, an X-axis running mechanism 40, a Y-axis running mechanism 50, a Z-axis running mechanism 60, an electrical control module, and a high-strength base as described in any one of the above. In this application, the desktop machine tool is a five-axis desktop machine tool. The X-axis running mechanism 40, the Y-axis running mechanism 50, and the Z-axis running mechanism 60 cooperate to form a three-axis gantry structure. The three-axis gantry structure is used to drive the machine head 30 to move along the X-axis, Y-axis, and Z-axis directions. The X-axis running mechanism 40 is mounted on the base body 10 to drive the machine head 30 to reciprocate along the X-axis. The Y-axis running mechanism 50 is used to drive the machine head 30 to reciprocate along the Y-axis. The Z-axis running mechanism 60 is used to drive the machine head 30 to reciprocate along the Z-axis.

[0042] The dual turntable mechanism 20 includes a turntable 21 for mounting workpieces, a first turntable 22 that drives the turntable 21 to rotate around the Z-axis, and a second turntable 23 that drives the turntable 21 and the first turntable 22 to rotate around the X-axis. The second turntable 23 is fixedly installed in the accommodating cavity 13.

[0043] In some embodiments, the X-axis running mechanism 40 includes a first slide rail assembly 41 and a first drive assembly 42. The first slide rail assembly 41 is respectively installed on the two side rail mounting positions 11. The Y-axis running mechanism 50 is installed on the first slide rail assembly 41 and is driven to move along the X-axis direction by the first drive assembly 42. The Z-axis running mechanism 60 is installed on the upper end of the Y-axis running mechanism 50 and is driven to move along the Y-axis direction by the Y-axis running mechanism 50. The machine head 30 is installed on the Z-axis running mechanism 60 and moves along the Z-axis direction by the Z-axis running mechanism 60. Specifically, the Y-axis running mechanism 50 includes a horizontally arranged crossbeam, a second slide rail assembly arranged along the length of the crossbeam, and a second drive assembly arranged on the crossbeam. The crossbeam is mounted on the first slide rail assembly 41. The Z-axis running mechanism 60 includes a vertically arranged vertical beam, a third slide rail assembly arranged along the length of the vertical beam, and a third drive assembly arranged on the vertical beam. The vertical beam is vertically mounted on the second slide rail assembly. The machine head 30 is arranged on the third slide rail assembly. The second drive assembly and the third drive assembly are both lead screw units and power units that drive the lead screw units to operate. The second slide rail assembly and the third slide rail assembly are both linear slide rails and sliders that are slidably arranged on the linear slide rails.

[0044] In some embodiments, the second turntable 23 includes a second motor 231 fixedly mounted on the base body 10 and a rotating body 232 connected to the output end of the second motor 231. The rotating body 232 includes a first rotating body 2321 extending along the X-axis and a second rotating body 2322 extending along the Z-axis. The first turntable 22 includes a first motor fixedly mounted on the second rotating body 2322, and the turntable 21 is connected to the output end of the first motor.

[0045] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A high-strength base, characterized in that: The base body (10) includes a base body (10), with rail mounting positions (11) on both sides of the base body (10). A boss (12) is provided at the middle of the front end of the base body (10). The boss (12) or the boss (12) cooperates with the base body (10) to provide a receiving cavity (13) with a front opening. A reinforcing rib structure A (14) is provided at the rear end of the boss (12). The reinforcing rib structure A (14) includes a left reinforcing rib group A (141) that extends backward from the middle of the boss (12) toward the left rail mounting position (11) and a right reinforcing rib group A (142) that extends backward from the middle of the boss (12) toward the right rail mounting position (11).

2. The high-strength base according to claim 1, characterized in that: The left reinforcing rib group A (141) includes multiple spaced first reinforcing ribs, and the right reinforcing rib group A (142) includes multiple spaced second reinforcing ribs.

3. A high-strength base according to claim 2, characterized in that: The height of the first and second reinforcing ribs decreases from the front end to the rear end.

4. A high-strength base according to claim 1, characterized in that: The lower end of the boss (12) protrudes from the base body (10). The lower end of the base body (10) is provided with a reinforcing rib structure B (15). The reinforcing rib structure B (15) includes a left reinforcing rib group B (151) extending from the middle position of the boss (12) to the left side of the base body (10) and a right reinforcing rib group B (152) extending from the middle position of the boss (12) to the right side of the base body (10).

5. A high-strength base according to claim 4, characterized in that: The left reinforcing rib group B (151) includes multiple spaced third reinforcing ribs, and the right reinforcing rib group B (152) includes multiple spaced fourth reinforcing ribs.

6. A high-strength base according to claim 1, characterized in that: A mounting frame (16) is provided on the rear side of the boss (12). The mounting frame (16) passes through part of the reinforcing rib structure and extends rearward. A channel communicating with the receiving cavity (13) is provided inside the mounting frame (16).

7. A high-strength base according to claim 1, characterized in that: The lower end of the base body (10) in the middle position is provided with a hollow area (17), and the base body (10) forms long strip-shaped support parts on both sides corresponding to the hollow area (17). The track mounting position (11) is set at the upper end of the two strip-shaped support parts.

8. A desktop machine tool, characterized in that: The device includes a dual rotary table mechanism (20), a machine head (30), an X-axis running mechanism (40), a Y-axis running mechanism (50), a Z-axis running mechanism (60), an electrical control module, and a high-strength base as described in any one of claims 1-7. The dual rotary table mechanism (20) includes a turntable (21) for mounting workpieces, a first turntable (22) for driving the turntable (21) to rotate around the Z-axis, and a second turntable (23) for driving the turntable (21) and the first turntable (22) to rotate around the X-axis. The second turntable (23) is fixedly installed in the accommodating cavity (13). The X-axis running mechanism (40) is installed on the base body (10) for driving the machine head (30) to reciprocate along the X-axis. The Y-axis running mechanism (50) is used to drive the machine head (30) to reciprocate along the Y-axis. The Z-axis running mechanism (60) is used to drive the machine head (30) to reciprocate along the Z-axis.

9. A desktop machine tool according to claim 8, characterized in that: The X-axis running mechanism (40) includes a first slide rail assembly (41) and a first drive assembly (42). The first slide rail assembly (41) is installed on the two side rail mounting positions (11). The Y-axis running mechanism (50) is installed on the first slide rail assembly (41) and is driven to move along the X-axis direction by the first drive assembly (42). The Z-axis running mechanism (60) is installed on the upper end of the Y-axis running mechanism (50) and is driven to move along the Y-axis direction by the Y-axis running mechanism (50). The machine head (30) is installed on the Z-axis running mechanism (60) and moves along the Z-axis direction by the Z-axis running mechanism (60).

10. A desktop machine tool according to claim 9, characterized in that: The second turntable (23) includes a second motor (231) fixedly mounted on the base body (10) and a rotating body (232) connected to the output end of the second motor (231). The rotating body (232) includes a first rotating body (2321) extending along the X-axis and a second rotating body (2322) extending along the Z-axis. The first turntable (22) includes a first motor fixedly mounted on the second rotating body (2322), and a turntable (21) is connected to the output end of the first motor.

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