Automatic displacement mechanism of numerical control machine tool

Abstract

The utility model discloses an automatic displacement mechanism of a numerically-controlled machine tool, which belongs to the technical field of numerically-controlled machine tools and comprises a machining pedestal and sliding grooves arranged in two side walls of the machining pedestal, sliding blocks are slidably mounted in the sliding grooves, and a supporting rod is in threaded connection with the outer wall of one side of each sliding block. A first rail is detachably mounted on the bottom wall of the processing pedestal; the third circular track is arranged on a traditional automatic displacement mechanism of the numerical control machine tool, the steering rack is arranged in the third track, the steering rack is driven by the external steering gear and the second motor at the bottom in a matched mode, and the second track at the top is driven to rotate forwards and backwards by 180 degrees. And the machining equipment connected with the bottom can move on the surface of the workpiece in an arc-shaped moving mode, so that machining in multiple modes is achieved, and the flexibility of the displacement mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to an automatic displacement mechanism of a numerical control machine tool. Background Art

[0002] A CNC machine tool, short for digitally controlled machine tool, is an automated machine tool equipped with a program control system. This control system logically processes programs specified by control codes or other symbolic instructions, decodes them, and represents them as coded numbers, which are then input into the CNC device via an information carrier. After computational processing, the CNC device issues various control signals, controlling the machine's movements and automatically producing parts to the shape and size specified in the drawings.

[0003] In a Chinese public utility model patent with document number CN221495032U, an automatic displacement mechanism for a CNC machine tool is provided, which includes an outer frame, an inner wall of the outer frame is provided with a crawler track 1, one end of the crawler track 1 is fixedly connected to a motor 1, an inner frame portion of the outer frame is provided with a placement seat, and a side of the placement seat is fixedly connected to a slide rail. This automatic displacement mechanism for a CNC machine tool controls the operation of motor 2 to drive screw 2 to rotate, a screw barrel threadedly connected to the outer wall of screw 2 is fixed with a welding strip, and both ends of the welding strip are fixed to a slide plate, while the slide plate is slidably connected to a slide rail fixed to the side wall of the placement seat, and is used to limit the screw barrel rotating on the outer wall of screw 2, ensuring that the screw barrel is displaced up and down on the outer wall of screw 2 under the rotation of screw 2; thereby realizing the slide plate's forward and backward displacement on the side of the placement seat, and is used to perform an operation process on an object placed on the placement seat.

[0004] However, the above device also has some disadvantages during use. For example, when the displacement mechanism in the top Y-axis direction follows the displacement mechanism in the bottom Z-axis and X-axis directions, it can usually only move in a straight line, which makes the processing equipment's way of processing the workpiece relatively simple. When the workpiece requires specific arc structure processing, this type of displacement mechanism is difficult to meet the requirements.

[0005] In addition, most existing automatic displacement mechanisms work by means of a screw drive. The screw is the same length as the processing table and is fixed, and cannot be adaptively adjusted. For different CNC machine tools, the screw can only be set and processed at a specific length, making the use of the displacement mechanism on the CNC machine tool relatively unique and unable to be flexibly installed and used.

[0006] Therefore, a new type of displacement mechanism is needed to solve this problem. Utility Model Content

[0007] The main purpose of the utility model is to provide an automatic displacement mechanism for a CNC machine tool, which solves the problem that the automatic displacement mechanism of the existing CNC machine tool cannot meet the needs of processing workpieces in various processing modes of processing equipment.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] An automatic displacement mechanism for a numerically controlled machine tool comprises a processing platform, a slide groove provided in two side walls of the processing platform, a slider slidably mounted in the slide groove, a support rod threadedly connected to an outer wall of one side of the slider, and a first track detachably mounted on the bottom wall of the processing platform;

[0010] A hydraulic rod and a guide rod are fixed to the top of the slider, and the top ends of the hydraulic rod and the guide rod are connected to a mounting frame, and a third rail is welded and fixed to one side of the outer wall of the mounting frame;

[0011] A steering rack is connected to a bearing in the inner wall of the third track, a connecting rod is symmetrically welded to the top of the steering rack, and a second track is detachably mounted on the top of the connecting rod.

[0012] Furthermore, track teeth are machined and formed in the inner walls of the first track and the second track, and a driving gear is meshed with the outside of the track teeth. One side of the driving gear is connected to the first motor and the third motor through a shaft.

[0013] Furthermore, a guide frame is screwed onto the outer wall of the first motor, and both sides of the bottom of the guide frame are slidably mounted on the inner wall of the second track. An equipment mounting plate is integrally formed at the bottom of the guide frame, and the third motor is fixedly mounted to one end of the support rod.

[0014] Furthermore, the outer wall of the steering rack is provided with a tooth groove, one side of the tooth groove is engaged with a steering gear, the steering gear is nested and fixed on the output shaft of the second motor, and the second motor is clamped in the installation frame.

[0015] Furthermore, there are two groups of hydraulic rods and guide rods, wherein the guide rods are slidingly connected to the extension structure of the outer wall of the installation frame, and the two groups of hydraulic rods are connected by a synchronous control oil pipe, and the synchronous control oil pipe is externally connected to the same control oil pump.

[0016] Furthermore, mounting angle brackets are welded on both side outer walls of the first track, a slot is provided in the inner wall of one end of the first track, and a docking handle is integrally formed at the other end, and the docking handle is adapted to be plugged into the slot.

[0017] Beneficial technical effects of the utility model:

[0018] The utility model provides a circular third track on the automatic displacement mechanism of a traditional CNC machine tool, and a steering rack is provided in the third track. The steering rack is driven by an external steering gear and a second motor at the bottom, driving the second track at the top to rotate 180 degrees in both directions. This facilitates the processing equipment connected at the bottom to move in an arc on the surface of the workpiece, thereby realizing various processing methods and improving the flexibility of the displacement mechanism.

[0019] The utility model adopts a first track with inner track teeth and a second track as a displacement structure, wherein the first track is composed of continuous modules, which are aligned and installed by installing angle brackets and docking handles. The track teeth at the connection are designed as a symmetrical two-petal structure, which can support the meshing of gears without gaps, thereby completing the extension installation and use of the track, and achieving the purpose of adapting to CNC machine tool processing tables of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of a preferred embodiment of an automatic displacement mechanism for a CNC machine tool according to the utility model;

[0021] Figure 2 A bottom view of a preferred embodiment of an automatic displacement mechanism for a CNC machine tool according to the present utility model;

[0022] Figure 3 Schematic diagram of the connection relationship between the third rail and the second motor in a preferred embodiment of an automatic displacement mechanism for a CNC machine tool according to the present utility model;

[0023] Figure 4 It is a structural schematic diagram of one lobe of the first track in a preferred embodiment of an automatic displacement mechanism for a CNC machine tool according to the present utility model.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Processing platform; 2. First track; 3. Second track; 4. Track gear; 5. Guide rod; 6. First motor; 7. Drive gear; 8. Third track; 9. Guide frame; 10. Equipment mounting plate; 11. Mounting frame; 12. Second motor; 13. Third motor; 14. Support rod; 15. Slider; 16. Slide; 17. Connecting rod; 18. Steering gear; 19. Steering rack; 20. Docking handle; 21. Mounting angle bracket; 22. Synchronous control oil pipe; 23. Hydraulic rod. DETAILED DESCRIPTION

[0026] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is described in further detail below with reference to embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0027] like Figures 1-4 As shown, the embodiment provides an automatic displacement mechanism for a CNC machine tool, including a processing platform 1, a slide groove 16 provided in the two side walls of the processing platform 1, a slider 15 is slidably installed in the slide groove 16, the slider 15 plays a guiding role in the slide groove 16, and at the same time provides torque to a third motor 13 connected to one side through a support rod 14, a support rod 14 is threadedly connected to the outer wall of one side of the slider 15, and a first rail 2 is detachably installed on the bottom wall of the processing platform 1; a hydraulic rod 23 and a guide rod 5 are fixed to the top of the slider 15, and the hydraulic rod 23 is a hydraulic Force drive assembly, the guide rod 5 is used to vertically guide the top displacement mechanism, the top of the hydraulic rod 23 and the guide rod 5 are connected to the mounting frame 11, and the third track 8 is welded and fixed to one side of the outer wall of the mounting frame 11. The third track 8 is a circular structure; the bearing in the inner wall of the third track 8 is connected to the steering rack 19, and the top of the steering rack 19 is symmetrically welded with a connecting rod 17. The top of the connecting rod 17 is detachably mounted with the second track 3. The second track 3 rotates synchronously with the steering rack 19, and the rotation angle is 180 degrees in both directions to prevent winding due to excessive angles.

[0028] like Figure 1-Figure 3 As shown, track teeth 4 are machined into the inner walls of the first track 2 and the second track 3, and the outside of the track teeth 4 is engaged with a drive gear 7. The drive gear 7 is tightly engaged with the track teeth 4 to provide sufficient and stable power. One side of the drive gear 7 is connected to the first motor 6 and the third motor 13 through an axis.

[0029] like Figure 1 and Figure 2 As shown, a guide frame 9 is screwed onto the outer wall of the first motor 6. The guide frame 9 moves horizontally in the second track 3 to provide support for the first motor 6 and at the same time carry the processing equipment at the bottom to move stably. The two sides of the bottom of the guide frame 9 are slidably installed with the inner wall of the second track 3. An equipment mounting plate 10 is integrally formed at the bottom of the guide frame 9. The bottom of the equipment mounting plate 10 is used to install the equipment components of the CNC machine tool. The third motor 13 is fixedly installed to one end of the support rod 14.

[0030] like Figure 2 and Figure 3 As shown, the steering rack 19 has a tooth groove on its outer wall, and the gap between the tooth groove is smaller than the gap between the track teeth 4. The tooth groove is exposed to the outside at the opening of the third track 8 and can be engaged and driven by the embedded steering gear 18. The steering gear 18 is engaged with one side of the tooth groove, and the steering gear 18 is nested and fixed on the output shaft of the second motor 12. The second motor 12 is clamped in the mounting frame 11.

[0031] like Figure 1 and Figure 2As shown, there are two groups of hydraulic rods 23 and guide rods 5, wherein the guide rods 5 are slidably connected to the extension structure of the outer wall of the mounting frame 11, and the two groups of hydraulic rods 23 are connected by a synchronous control oil pipe 22, which is externally connected to the same control oil pump. The hydraulic rods 23 are symmetrically installed on both sides of the bottom of the fixed frame, and synchronous operation is achieved through the same control oil pump, thereby achieving horizontal lifting of the second track 3.

[0032] like Figure 2 and Figure 4 As shown, mounting angle codes 21 are welded on the outer walls on both sides of the first track 2, a slot is provided in the inner wall at one end of the first track 2, and a docking handle 20 is integrally formed at the other end. The docking handle 20 is adapted to be plugged into the slot. When installing the first track 2, the first module is first fixed to one side of the bottom of the processing platform 1 through the mounting angle code 21 as a starting point, and then the subsequently connected modules are inserted into the slot of the previous module through the docking handle 20 to achieve alignment, so that the internal track teeth 4 are tightly fitted, and then fixed with the mounting angle code 21. In this way, it can be flexibly installed and used at the bottom of the processing platform 1 of different lengths.

[0033] Working principle of this device: When in use, this device is installed on a CNC machine tool and connected to the control panel of the CNC machine tool to realize the control of the electrical equipment on this device.

[0034] The third motor 13 drives the driving gear 7 to engage with the track teeth 4 of the first track 2, which can drive the support rods 14 on both sides to move. The support rods 14 slide in the slide groove 16 through the slider 15 to achieve movement along the X-axis direction of the processing platform 1.

[0035] The hydraulic rod 23 on the top of the slide 15 drives the mounting frame 11 to move vertically up and down along the guide rod 5, thereby realizing movement along the Z-axis direction of the processing platform 1.

[0036] The third track 8 is welded and fixed on the inner wall of the mounting frame 11, and a steering rack 19 is rotatably connected to the inner wall of the third track 8. The steering rack 19 is driven by the steering gear 18 on one side and the second motor 12, so that the second track 3 at the top of the steering rack 19 is offset, and the offset angle is plus or minus 180 degrees. During this process, the first motor 6 drives the drive gear 7 to engage and move in the track teeth 4 in the second track 3, so that the processing equipment installed on the bottom equipment mounting plate 10 can complete the arc movement processing of the workpiece surface, thereby improving the flexibility of CNC machine tool processing.

[0037] In addition, the first track 2 is connected by modules that can be assembled and installed. The modules are inserted into the inner wall of the track through docking handles 20 to achieve fitting. The track teeth 4 at the connection are symmetrical petal structures to achieve seamless connection, thereby ensuring that the driving gear 7 can move continuously.

[0038] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention based on the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. An automatic displacement mechanism for a numerically controlled machine tool, comprising a processing platform (1), a slide groove (16) provided in two side walls of the processing platform (1), a slider (15) slidably mounted in the slide groove (16), and characterized in that: A support rod (14) is threadedly connected to an outer wall of one side of the slider (15), and a first track (2) is detachably mounted on the bottom wall of the processing platform (1); A hydraulic rod (23) and a guide rod (5) are fixed to the top of the slider (15); the top ends of the hydraulic rod (23) and the guide rod (5) are connected to a mounting frame (11); a third rail (8) is welded and fixed to one side of the outer wall of the mounting frame (11); A steering rack (19) is connected to a bearing in the inner wall of the third track (8), a connecting rod (17) is symmetrically welded to the top of the steering rack (19), and a second track (3) is detachably mounted on the top of the connecting rod (17).

2. The automatic displacement mechanism of a CNC machine tool according to claim 1, characterized in that: Track teeth (4) are machined and formed in the inner walls of the first track (2) and the second track (3), and a driving gear (7) is meshed with the outside of the track teeth (4). One side of the driving gear (7) is connected to a first motor (6) and a third motor (13) via a shaft.

3. The automatic displacement mechanism of a CNC machine tool according to claim 2, characterized in that: A guide frame (9) is screwed onto the outer wall of the first motor (6), and both sides of the bottom of the guide frame (9) are slidably mounted on the inner wall of the second track (3). An equipment mounting plate (10) is integrally formed at the bottom of the guide frame (9), and the third motor (13) is fixedly mounted to one end of the support rod (14).

4. The automatic displacement mechanism for a CNC machine tool according to claim 1, characterized in that: The steering rack (19) has a tooth groove on its outer wall, and a steering gear (18) is engaged with one side of the tooth groove. The steering gear (18) is nested and fixed on the output shaft of the second motor (12), and the second motor (12) is clamped in the installation frame (11).

5. The automatic displacement mechanism of a CNC machine tool according to claim 1, characterized in that: There are two groups of hydraulic rods (23) and guide rods (5), wherein the guide rods (5) are slidably connected to the outer wall extension structure of the installation frame (11), and a synchronous control oil pipe (22) is connected between the two groups of hydraulic rods (23), and the synchronous control oil pipe (22) is externally connected to the same control oil pump.

6. The automatic displacement mechanism for a CNC machine tool according to claim 1, characterized in that: Mounting angle codes (21) are welded on both side outer walls of the first track (2); a slot is provided in the inner wall of one end of the first track (2); and a docking handle (20) is integrally formed at the other end, the docking handle (20) being adapted to be plugged into the slot.

Images