Swing arm structure for five-axis numerical control grinding machine

Abstract

The utility model discloses a swing arm structure for a five-axis numerical control grinding machine, and relates to the technical field of swing arm structures, the swing arm structure for the five-axis numerical control grinding machine comprises a rotary motion device, the rotary motion device is connected with a left-right moving device, and the left-right moving device is connected with an up-down moving device; the rotary motion device comprises a mounting plate, and a rotary motor I and connecting columns which are symmetrically arranged are mounted on the upper surface of the mounting plate; when rotary machining is needed, firstly, the mounting plate and the five-axis numerical control grinding machine are mounted, the first rotating motor on the upper surface of the mounting plate drives the motor gear to rotate, the motor gear drives the gear seat to rotate, the gear seat drives the swing arm structure to rotate, and accurate adjustment is carried out by adjusting movement of the motor; it is ensured that the swing arm rotates to a specified angle position, grinding machining in the circumferential direction is achieved, a high-precision rotating structure is adopted, and high-precision movement of rotation and swing of the swing arm is achieved.

Description

Technical Field

[0001] This utility model specifically relates to the field of swing arm structure technology, and more specifically to a swing arm structure for a five-axis CNC grinding machine. Background Technology

[0002] With the continuous development of modern manufacturing, the requirements for the machining precision and complexity of parts are increasing. Especially in aerospace, automotive manufacturing, and precision mold making, many key components have complex curved shapes and high-precision dimensional tolerances. For example, aero-engine blades have complex shapes and require precise surface grinding to meet aerodynamic performance requirements; some precision components of automotive engines also require high-precision grinding on complex curved surfaces. Traditional three-axis CNC grinding machines, due to their limited degrees of freedom, cannot meet the machining needs of these complex curved surfaces. Five-axis CNC grinding machines have emerged to address this need. They can achieve arbitrary tool orientation adjustment in space through the linkage of five coordinate axes, thereby enabling efficient and precise machining of complex-shaped workpieces. The swing arm structure, as a key component of the five-axis CNC grinding machine, plays a crucial role in realizing the five-axis linkage function of the grinding machine.

[0003] Chinese Patent Publication No. CN 206764505 discloses a U-shaped swing arm structure for a five-axis CNC grinding machine, including a swing arm, a base, and a column mounted perpendicular to the base. A fixed plate is provided on one side of the column, and a servo motor is provided on the other side. A rotary worktable driven by the servo motor is fixedly mounted on the fixed plate, and the rotary worktable is connected to an electric spindle via the swing arm control. This invention features low cost, simple structure, and convenient operation. The rotary worktable uses a cycloidal pinwheel reducer, which has the characteristics of large transmission ratio, high rotational efficiency, large load-bearing capacity, and small return clearance, making it suitable for mass production and increasing the service life of the entire swing arm structure while maintaining high precision.

[0004] The aforementioned five-axis CNC grinding machine's swing arm structure cannot rotate the entire swing arm structure when the swing arm angle needs to be rotated during workpiece processing, thus lacking high adaptability. Utility Model Content

[0005] The purpose of this utility model is to provide a swing arm structure for a five-axis CNC grinding machine. By installing the up-and-down moving device and the left-and-right moving device with the rotary motion device, the swing arm structure has high performance, thereby solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A swing arm structure for a five-axis CNC grinding machine, including

[0008] A rotary motion device, on which a left-right moving device is connected, and on which a up-down moving device is connected;

[0009] The rotary motion device includes a mounting plate, on the upper surface of which a rotary motor and symmetrically arranged connecting columns are mounted. A motor housing is provided at the upper end of the mounting plate. The rotary motor and connecting columns are located inside the motor housing. Two bearings are provided on the inner side of the upper end of the motor housing, and a slide rail is provided on the upper surface. The end of the rotary motor is connected to a motor gear.

[0010] As a further technical solution of this utility model, the slide rail is slidably connected to three sliding columns; the two bearings are respectively connected to the motor gear and the bottom of the gear seat, the motor gear is meshed with the gear seat, and the end of the gear seat is connected to the bottom of the rotating plate.

[0011] As a further technical solution of this utility model, a second rotary motor is provided on the upper surface of the rotary plate, the end of the second rotary motor is connected to a first threaded rod, and bearing seats are symmetrically provided at both ends of the first threaded rod, with the bearing seats located on the upper surface of the rotary plate.

[0012] As a further technical solution of this utility model, the threaded rod is threadedly connected to the moving block, and the moving block is connected to the moving seat through the connecting block; the rotating plate is symmetrically provided with a slide rail on one side, and the slide rail is slidably connected to the corresponding slide seat, and the slide seat is provided on one side of the moving seat.

[0013] As a further technical solution of this utility model, each end of the movable seat is provided with a top plate, and the top plates at both ends are respectively provided with a bearing seat one and a bearing seat two. The other end of the bearing seat one is connected to a rotary motor three. The rotary motor three is connected to a threaded rod two through the bearing seat one. The threaded rod two is threadedly connected to the threaded seat, and its other end is connected to the bearing seat two.

[0014] As a further technical solution of this utility model, the other side of the movable seat is symmetrically provided with a slide rail two, the slide rail two is connected to the corresponding slide seat two, the slide seat two is located at the bottom end of the threaded seat, and the threaded seat is symmetrically provided with clamps, which are used to fix the processing mechanism.

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

[0016] In this utility model, when rotary machining is required, the mounting plate is first installed on the five-axis CNC grinding machine. The rotary motor on the upper surface of the mounting plate drives the motor gear to rotate, the motor gear drives the gear seat to rotate, and the gear seat drives the swing arm structure to rotate. By adjusting the movement of the motor, precise adjustment is made to ensure that the swing arm rotates to the specified angle position, so as to realize the circumferential grinding machining. The high-precision rotary structure realizes the high-precision movement of the swing arm rotation and swing.

[0017] In this invention, when lateral movement processing is required, a rotary motor drives a threaded rod to rotate. The threaded rod is threadedly connected to a moving block, which in turn moves the moving seat. A slide rail is also provided on the rotating plate, and the slide seat on the moving seat slides with the slide rail, thus realizing lateral movement processing. The lateral movement device allows the swing arm structure to move horizontally, greatly expanding the reach of the mold. For example, when processing large molds, the mold size may exceed the conventional coverage range of the mold. By moving the swing arm laterally, the mold can reach different positions of the mold, realizing comprehensive processing of large-area molds without moving or re-clamping the mold, thus solving the processing problem caused by mold size limitations.

[0018] In this invention, when vertical lateral movement processing is required, the rotary motor drives the threaded rod two to rotate. The threaded rod two is threadedly connected to the threaded seat, and the slide seat two at the bottom of the threaded seat slides with the slide rail two to achieve vertical lateral movement processing. The vertical position of the swing arm can be adjusted in real time according to the wear degree of the grinding wheel to ensure that the grinding wheel can always process the workpiece in the correct position and size, and maintain stable processing accuracy. Attached Figure Description

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

[0020] Figure 2 This utility model Figure 1 The diagram on the other side.

[0021] Figure 3 This utility model Figure 1 A schematic diagram of the rear side.

[0022] Figure 4 This utility model Figure 3 Side view.

[0023] Figure 5 This utility model Figure 3 A schematic diagram of the bottom structure.

[0024] In the diagram: 1-rotational motion device, 2-left-right movement device, 3-up-down movement device;

[0025] 11-Mounting plate, 12-Rotating motor one, 13-Motor box, 14-Connecting column, 15-Bearing, 16-Slide rail, 17-Slide column, 18-Motor gear, 19-Gear seat;

[0026] 21-Rotating plate, 22-Rotating motor II, 23-Bearing housing, 24-Threaded rod I, 15-Moving block, 26-Slide rail I, 27-Slide seat I, 28-Connecting block;

[0027] 31-Moving seat, 32-Top plate, 33-Shaft seat one, 34-Rotary motor three, 35-Threaded rod two, 36-Slide rail two, 37-Shaft seat two, 38-Slide seat two, 39-Threaded seat, 310-Clamp, 311-Machining mechanism. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-5 In this embodiment of the present invention, a swing arm structure for a five-axis CNC grinding machine includes a rotary motion device 1, a left and right moving device 2 connected to the rotary motion device 1, and a right and left moving device 3 connected to the left and right moving device 2.

[0030] The rotary motion device 1 includes a mounting plate 11, on the upper surface of which a rotary motor 12 and symmetrically arranged connecting columns 14 are mounted. A motor housing 13 is provided at the upper end of the mounting plate 11. The rotary motor 12 and the connecting columns 14 are located inside the motor housing 13. Two bearings 15 are provided on the inner side of the upper end of the motor housing 13, and a slide rail 16 is provided on the upper surface. The end of the rotary motor 12 is connected to a motor gear 18.

[0031] The slide rail 16 is slidably connected to three slide columns 17; the two bearings 15 are respectively connected to the bottom of the motor gear 18 and the gear seat 19, the motor gear 18 is meshed with the gear seat 19, and the end of the gear seat 19 is connected to the bottom of the rotating plate 21.

[0032] By adopting the above technical solution, when rotary machining is required, the mounting plate 11 is first installed on the five-axis CNC grinding machine. The rotary motor 12 on the upper surface of the mounting plate 11 drives the motor gear 18 to rotate, the motor gear 18 drives the gear seat 19 to rotate, and the gear seat 19 drives the swing arm structure to rotate. By adjusting the movement of the motor, precise adjustment is made to ensure that the swing arm rotates to the specified angle position, so as to realize the circumferential grinding machining. The high-precision rotary structure realizes the high-precision movement of the swing arm rotation and swing.

[0033] In this embodiment, a second rotary motor 22 is provided on the upper surface of the rotating plate 21. The end of the second rotary motor 22 is connected to a first threaded rod 24. Bearing seats 23 are symmetrically provided at both ends of the first threaded rod 24. The bearing seats 23 are located on the upper surface of the rotating plate 21.

[0034] The threaded rod 24 is threadedly connected to the movable block 25, and the movable block 25 is connected to the movable seat 31 through the connecting block 28; the rotating plate 21 is symmetrically provided with a slide rail 26 on one side, and the slide rail 26 is slidably connected to the corresponding slide seat 27, which is located on one side of the movable seat 31.

[0035] By adopting the above technical solution, when lateral movement processing is required, the rotary motor 12 drives the threaded rod 24 to rotate. The threaded rod 24 is threadedly connected to the moving block 25, and the moving block 25 drives the moving seat 31 to move. The rotating plate 21 is also equipped with a slide rail 26, and the slide seat 27 on the moving seat 31 slides with the slide rail 26 to realize lateral movement processing. The left and right moving device 2 allows the swing arm structure to move in the horizontal direction, which greatly expands the reachable space of the mold. For example, when processing large molds, the mold size may exceed the conventional coverage range of the mold. By moving the swing arm laterally, the mold can reach different positions of the mold, realizing the comprehensive processing of large-area molds without moving or re-clamping the mold, thus solving the processing problem caused by mold size limitations.

[0036] In this embodiment, the movable seat 31 is provided with a top plate 32 at each end, and a first bearing seat 33 and a second bearing seat 37 are respectively provided on the top plate 32 at both ends. The other end of the first bearing seat 33 is connected to the third rotary motor 34. The third rotary motor 34 is connected to the second threaded rod 35 through the first bearing seat 33. The second threaded rod 35 is threadedly connected to the threaded seat 39, and the other end is connected to the second bearing seat 37.

[0037] The other side of the movable seat 31 is symmetrically provided with a slide rail 36, which is connected to a corresponding slide block 38. The slide block 38 is located at the bottom of the threaded seat 39. The threaded seat 39 is symmetrically provided with a clamp 310, which is used to fix the processing mechanism 311.

[0038] By adopting the above technical solution, when vertical lateral movement processing is required, the rotary motor 34 drives the threaded rod 35 to rotate. The threaded rod 35 is threadedly connected to the threaded seat 39. The slide block 38 at the bottom of the threaded seat 39 slides with the slide rail 36, realizing vertical lateral movement processing. The vertical position of the swing arm can be adjusted in real time according to the wear degree of the grinding wheel, ensuring that the grinding wheel can always process the workpiece in the correct position and size, and maintaining stable processing accuracy.

[0039] The working principle of this utility model is as follows: When rotary processing is required, the mounting plate 11 is first installed on the five-axis CNC grinding machine. The rotary motor 12 on the upper surface of the mounting plate 11 drives the motor gear 18 to rotate, the motor gear 18 drives the gear seat 19 to rotate, and the gear seat 19 drives the swing arm structure to rotate. By adjusting the movement of the motor, precise adjustment is made to ensure that the swing arm rotates to the specified angle position, so as to realize the circumferential grinding process. The high-precision rotary structure realizes the high-precision movement of the swing arm rotation and swing.

[0040] When lateral movement processing is required, the rotary motor 12 drives the threaded rod 24 to rotate. The threaded rod 24 is threadedly connected to the moving block 25, and the moving block 25 drives the moving seat 31 to move. The rotating plate 21 is also equipped with a slide rail 26. The slide seat 27 on the moving seat 31 slides with the slide rail 26 to realize lateral movement processing. The left and right moving device 2 allows the swing arm structure to move in the horizontal direction, which greatly expands the reach of the mold. For example, when processing large molds, the mold size may exceed the conventional coverage range of the mold. By moving the swing arm laterally, the mold can reach different positions of the mold, realizing the comprehensive processing of large-area molds without moving or re-clamping the mold, thus solving the processing problem caused by mold size limitations.

[0041] When vertical lateral movement is required, the rotary motor 34 drives the threaded rod 35 to rotate. The threaded rod 35 is threadedly connected to the threaded seat 39. The slide block 38 at the bottom of the threaded seat 39 slides with the slide rail 36 to realize vertical lateral movement. The vertical position of the swing arm can be adjusted in real time according to the wear of the grinding wheel to ensure that the grinding wheel can always process the workpiece in the correct position and size, and maintain stable processing accuracy.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A swing arm structure for a five-axis CNC grinding machine, characterized by: Comprising The rotating movement device is connected with the left-right moving device, and the left-right moving device is connected with the up-down moving device. The rotating movement device comprises a mounting plate, a rotating motor one and symmetrically arranged connecting columns are installed on the upper surface of the mounting plate, and a motor box is arranged at the upper end, the rotating motor one and the connecting columns are arranged in the motor box, two bearings are arranged at the inner side of the upper end of the motor box, and a slide is arranged on the upper surface; the end of the rotating motor one is connected with a motor gear.

2. The swing arm structure for a five-axis CNC grinding machine according to claim 1, characterized in that: The slide is slidably connected with three slide columns; the two bearings are respectively connected with the motor gear and the bottom of a gear seat, the motor gear is meshingly connected with the gear seat, and the end of the gear seat is connected with the bottom end of a rotating plate.

3. The swing arm structure for a five-axis CNC grinding machine according to claim 2, characterized in that: The upper surface of the rotating plate is provided with a rotating motor two, the end of the rotating motor two is connected with a threaded rod one, the both ends of the threaded rod one are symmetrically provided with bearing seats, and the bearing seats are arranged on the upper surface of the rotating plate.

4. The swing arm structure for a five-axis CNC grinding machine according to claim 3, characterized in that: The threaded rod one is threadedly connected with a moving block, the moving block is connected with a moving seat through a connecting block; one side of the rotating plate is symmetrically provided with a slide rail one, the slide rail one is slidably connected with a corresponding slide seat one, and the slide seat one is arranged on one side of the moving seat.

5. The swing arm structure for a five-axis CNC grinding machine according to claim 4, characterized in that: The moving seat is provided with a top plate at each end, an axle seat one and an axle seat two are respectively arranged on the top plates at the two ends, the other end of the axle seat one is connected with a rotating motor three, the rotating motor three is connected with a threaded rod two through the axle seat one, the threaded rod two is threadedly connected with a threaded seat, and the other end is connected with the axle seat two.

6. The swing arm structure for a five-axis CNC grinding machine according to claim 5, characterized in that: The other side of the moving seat is symmetrically provided with a slide rail two, the slide rail two is connected with a corresponding slide seat two, the slide seat two is arranged at the bottom end of the threaded seat, symmetrically arranged clamps are arranged on the threaded seat, and the clamps are used for fixing a machining mechanism.

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