Numerical control machining positioning device with precise positioning function

Abstract

The utility model discloses a numerical control machining positioning device with a precise positioning function, which comprises a working table, a sliding groove is arranged at the top of the working table, a first threaded rod is arranged in the sliding groove, a sliding block is arranged in the sliding groove, a clamping block is arranged at the top of the sliding block, the front end of the first threaded rod is connected with a rotating handle, and the front end of the rotating handle is connected with a clamping block. A cavity is formed in the workbench, a second threaded rod is arranged in the cavity, a through groove is formed in the top of the workbench and communicates with the cavity, a moving block is arranged in the through groove, a push plate is connected to the top of the moving block, a telescopic column is arranged on the side face of the push plate, and a clamping plate is connected to the other end of the telescopic column. The telescopic column is sleeved with a spring, and a pressure sensor is embedded in the clamping plate. The device can achieve accurate positioning and fixing of materials, effectively protect the outer surfaces of the materials, prevent the attractiveness of the materials from being reduced and prevent subsequent use from being affected, and is easy to operate, high in automation degree, capable of greatly improving portability and practicability and worthy of application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, in particular to a numerical control machining positioning device with a precise positioning function. Background Technique

[0002] A numerical control machining machine tool with a precise positioning function is a device that can achieve precise positioning and machining through high-precision sensors and control systems. It can automatically control the tool to perform various machining operations on the workpiece according to pre-programmed instructions, such as milling, drilling, turning, etc. This kind of numerical control machining machine tool is usually equipped with high-precision linear guides, screw drive systems and servo drills to ensure the position and movement accuracy of the tool. At the same time, this kind of numerical control machining machine tool can also perform real-time adjustment and optimization of the machining process through advanced control systems and algorithms to improve the machining quality and efficiency. It can automatically adjust the cutting parameters and path planning according to different process requirements and workpiece characteristics, so as to achieve more precise and efficient machining.

[0003] When the existing numerical control machining machine tool with a precise positioning function processes materials, it is necessary to position and fix the materials through a positioning mechanism. The common method is to set clamping blocks around the materials and clamp them from all around the materials to ensure that the position of the materials does not shift during machining and the machining position is accurate. However, there are still certain defects in the actual operation of the above methods: it is impossible for the materials placed on the machining table to be exactly at the clamping center. For example, when the clamping blocks on the front and back sides of the materials clamp and fix the materials, the materials are not at the clamping center at this time. During the process of controlling the clamping blocks on the left and right sides of the materials to move and clamp the materials, it will also drive the materials themselves to move. This movement process will cause the surface of the materials to be worn and scratched, affecting the aesthetics, and even seriously affecting the subsequent use. Therefore, we design a numerical control machining positioning device with a precise positioning function to solve the above technical problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a numerical control machining positioning device with a precise positioning function to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A numerical control machining positioning device with precise positioning function, comprising a workbench with a controller on its surface. Support legs are provided at the four corners of the bottom of the workbench. A chute is longitudinally opened at the center of the top of the workbench. A first threaded rod is rotatably arranged between the front and rear inner walls of the chute. Two sets of external threads with opposite directions are provided on the outside of the first threaded rod. The two sets of external threads are symmetrically distributed on the left and right sides of the midpoint of the length direction of the first threaded rod. A slider adapted to it is slidably arranged in the chute. The two sliders are threadedly sleeved on the outside of the first threaded rod. A clamping block is provided on the top of the slider. The front end of the first threaded rod penetrates to the outside of the chute and is connected with a turning handle. A cavity is transversely opened inside the workbench. The length direction of the cavity is perpendicular to the length direction of the chute. The cavity is located below the chute. A second threaded rod is rotatably arranged between the left and right side walls of the cavity. Two sets of external threads with opposite directions are also provided on the outside of the second threaded rod. Two through grooves are transversely opened on the top of the workbench. The two through grooves are symmetrically distributed on the left and right sides of the chute. The through grooves communicate with the cavity. A moving block is slidably arranged in the through groove. The bottom of the moving block extends into the cavity and is threadedly sleeved on the outside of the second threaded rod. A push plate is connected to the top of the moving block. A plurality of telescopic columns are respectively provided on the side surfaces of the two push plates close to each other. The other end of the telescopic column is connected with a clamping plate. A spring is sleeved on the outside of the telescopic column. One end of the spring is connected to the surface of the push plate and the other end is connected to the surface of the clamping plate. A pressure sensor is embedded in the clamping plate. The pressure sensor is used to detect the elastic force of the spring. The pressure sensor is electrically connected to the controller.

[0007] As a preferred solution of the present utility model: Limit blocks are provided at both ends of the bottom of the push plate. Limit grooves for the limit blocks to slide and be embedded are opened on the top of the workbench.

[0008] As a further preferred solution of the present utility model: A support block is provided at the center of the cavity. The second threaded rod rotates through the support block.

[0009] As a further preferred solution of the present utility model: The two sets of external threads on the outside of the second threaded rod are symmetrically distributed on the left and right sides of the support block.

[0010] As a further preferred solution of the present utility model: A motor is provided on the right side surface of the workbench. The output shaft of the motor penetrates into the cavity and is connected to one end of the second threaded rod.

[0011] As a further preferred solution of the present utility model: Rubber layers are provided on the side surfaces of the two clamping blocks close to each other. Sponge layers are respectively provided on the side surfaces of the two clamping plates close to each other.

[0012] As a further preferred solution of the present utility model: The turning handle is rotatably arranged on the front side surface of the workbench. The push plate and the clamping plate are both slidably arranged on the top surface of the workbench.

[0013] The beneficial effects of the present utility model are as follows: When the device is in use, after placing the material on the top of the workbench, start the motor. The motor drives the second threaded rod to rotate, which can then drive two moving blocks to approach each other, and further drive two push plates to approach each other, and then drive two clamping plates to approach each other until the two clamping plates are in contact with the left and right surfaces of the material, and the spring deforms to generate elastic force. When the pressure sensor detects that the pressure value is N, the controller can automatically control the motor to stop. Note that the value of N1 at this time is not large, only for the preliminary position positioning of the material, rather than fixed clamping; Subsequently, the staff manually rotates the handle, which drives the first threaded rod to rotate, and then drives two sliders to approach each other, and then drives two clamping blocks to approach each other until the two clamping blocks are respectively in contact with the front and back surfaces of the material. During this process, as the clamping blocks move and push, it is easy to drive the material to move, so as to ensure that the material is centered, and the provided sponge layer and rubber layer both provide sufficient protection for the surface of the material; When the material is accurately positioned in the center, start the motor again, so that the push plates continue to approach each other, the telescopic columns are shortened to the shortest, and the spring is compressed to the maximum elastic force. When the pressure sensor detects that the pressure value is N2, then automatically control the motor to stop through the controller. Thus, the accurate positioning and fixing of the material are completed, and the outer surface of the material is effectively protected, preventing its aesthetics from decreasing and affecting subsequent use, and the operation is simple, the degree of automation is high, greatly improving the portability and practicability of the device, and it is worthy of popularization and use. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 is a schematic structural view of the whole from another perspective of the present utility model;

[0017] Figure 3 is a main sectional view of the overall structure of the present utility model.

[0018] Among them: 1 - workbench, 2 - motor, 3 - support leg, 4 - controller, 5 - handle, 6 - slider, 7 - spring, 8 - telescopic column, 9 - clamping block, 10 - chute, 11 - first threaded rod, 12 - push plate, 13 - clamping plate, 14 - second threaded rod, 15 - through groove, 16 - moving block, 17 - limiting groove, 18 - limiting block, 19 - cavity, 20 - support block, 21 - sponge layer. Detailed Embodiment

[0019] The present utility model will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0020] Please refer to Figures 1-3 , in an embodiment of the present utility model, a numerical control machining positioning device with a precise positioning function includes a workbench 1 with a controller 4 on its surface. The workbench 1 is used to place the material to be machined. Support legs 3 are provided at the four corners of the bottom of the workbench 1. A chute 10 is longitudinally opened at the center of the top of the workbench 1. A first threaded rod 11 is rotatably provided between the front and rear inner walls of the chute 10. Two sets of external threads with opposite directions are provided on the outside of the first threaded rod 11. The two sets of external threads are symmetrically distributed on the left and right sides of the midpoint of the length direction of the first threaded rod 11. A slider 6 adapted to it is slidably provided in the chute 10. The two sliders 6 are threadedly sleeved on the outside of the first threaded rod 11. A clamping block 9 is provided on the top of the slider 6. Rubber layers are provided on the sides of the two clamping blocks 9 facing each other. The front end of the first threaded rod 11 penetrates to the outside of the chute 10 and is connected to a turning handle 5. The turning handle 5 is rotatably provided on the front surface of the workbench 1. A cavity 19 is transversely opened inside the workbench 1. The length direction of the cavity 19 is perpendicular to the length direction of the chute 10. The cavity 19 is located below the chute 10. A second threaded rod 14 is rotatably provided between the left and right side walls of the cavity 19. Two sets of external threads with opposite directions are also provided on the outside of the second threaded rod 14. Two through slots 15 are transversely opened on the top of the workbench 1. The two through slots 15 are symmetrically distributed on the left and right sides of the chute 10. The through slots 15 communicate with the cavity 19. A moving block 16 is slidably provided in the through slots 15. The bottom of the moving block 16 extends into the cavity 19 and is threadedly sleeved on the outside of the second threaded rod 14. A push plate 12 is connected to the top of the moving block 16. The push plate 12 is slidably provided on the top surface of the workbench 1. A plurality of telescopic columns 8 are respectively provided on the sides of the two push plates 12 facing each other. The other ends of the telescopic columns 8 are connected to a clamping plate 13. The clamping plate 13 is slidably provided on the top surface of the workbench 1. A spring 7 is sleeved on the outside of the telescopic column 8. One end of the spring 7 is connected to the surface of the push plate 12 and the other end is connected to the surface of the clamping plate 13. Sponge layers 21 are respectively provided on the sides of the two clamping plates 13 facing each other. A pressure sensor is embedded in the clamping plate 13. The pressure sensor is used to detect the elastic force of the spring 7. The pressure sensor is electrically connected to the controller 4.

[0021] Limit blocks 18 are provided at both ends of the bottom of the push plate 12. A limit groove 17 for the limit blocks 18 to slide and embed is opened on the top of the workbench 1; through the cooperation of the limit blocks 18 and the limit groove 17, it plays a guiding and stabilizing role in the movement of the push plate 12, and also improves the stability of the clamping effect.

[0022] A support block 20 is provided at the center of the cavity 19, and the second threaded rod 14 rotates through the support block 20; the function of the support block 20 is to play an auxiliary supporting role for the second threaded rod 14.

[0023] The two sets of external threads on the outside of the second threaded rod 14 are symmetrically distributed on the left and right sides of the support block 20.

[0024] A motor 2 is provided on the right surface of the workbench 1, and the output shaft of the motor 2 penetrates into the cavity 19 and is connected to one end of the second threaded rod 14.

[0025] Specifically, when the device is in use, after placing the material on the top of the workbench 1, the motor 2 is started. The motor 2 drives the second threaded rod 14 to rotate, which can then drive the two moving blocks 16 to approach each other, and further drive the two push plates 12 to approach each other, and further drive the two clamping plates 13 to approach each other until the two clamping plates 13 are in contact with the left and right surfaces of the material, and the spring 10 deforms to generate elastic force. When the pressure sensor detects a pressure value of N1, the controller 4 can automatically control the motor 2 to stop. Note that the value of N1 at this time is not large, only for the preliminary position positioning of the material, rather than fixed clamping; Subsequently, the staff manually rotates the handle 5, which drives the first threaded rod 11 to rotate, which drives the two sliders 6 to approach each other, and further drives the two clamping blocks 9 to approach each other until the two clamping blocks 9 are in contact with the front and rear surfaces of the material respectively. During this process, as the clamping block 9 moves and pushes, it can easily drive the material to move, so as to ensure that the material is centered. And the provided sponge layer 21 and rubber layer both provide sufficient protection for the surface of the material; When the material is accurately positioned in the center, the motor 2 is started again, so that the push plates 12 continue to approach each other, the telescopic column 8 is shortened to the shortest, and the spring 7 is compressed to the maximum elastic force. At this time, when the pressure sensor detects a pressure value of N2, the controller 4 automatically controls the motor 2 to stop again. Thus, the accurate positioning and fixing of the material are completed, and the outer surface of the material is effectively protected, preventing its aesthetic appearance from deteriorating and affecting subsequent use. And the operation is simple, the degree of automation is high, the use portability and practicability are high, and it is worthy of popularization and use.

[0026] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A numerical control machining positioning device with a precise positioning function, comprising a workbench (1) with a controller (4) on the surface, and support legs (3) at the four corners of the bottom of the workbench (1); characterized in that: A slide groove (10) is provided at the center of the top of the workbench (1) along the longitudinal direction, a first threaded rod (11) is rotatably provided between the front and rear inner walls of the slide groove (10), a slider (6) adapted to the slide groove (10) is slidably provided in the slide groove (10), two sliders (6) are threadedly sleeved on the outside of the first threaded rod (11), a clamping block (9) is provided on the top of the slider (6), the front end of the first threaded rod (11) passes through the outside of the slide groove (10) and is connected to a rotating handle (5), a cavity (19) is provided inside the workbench (1) along the transverse direction, a second threaded rod (14) is rotatably provided between the left and right side walls of the cavity (19), and two through grooves ( 15), the through groove (15) is connected with the cavity (19), a moving block (16) is slidably arranged in the through groove (15), the bottom of the moving block (16) extends into the cavity (19) and is threadedly sleeved on the outside of the second threaded rod (14), the top of the moving block (16) is connected with a push plate (12), and the sides of the two push plates (12) close to each other are respectively provided with a plurality of telescopic columns (8), the other end of the telescopic column (8) is connected with a clamping plate (13), the outer sleeve of the telescopic column (8) is provided with a spring (7), one end of the spring (7) is connected to the surface of the push plate (12), and the other end is connected to the surface of the clamping plate (13), the clamping plate (13) is embedded with a pressure sensor, and the pressure sensor is electrically connected to the controller (4).

2. A numerical control machining positioning device with precise positioning function according to claim 1, characterized in that: The two ends of the bottom of the push plate (12) are provided with limit blocks (18), and the top of the workbench (1) is provided with limit grooves (17) for the limit blocks (18) to slide and embed.

3. A numerical control machining positioning device with precise positioning function according to claim 2, characterized in that: A support block (20) is provided at the center of the cavity (19), and the second threaded rod (14) is rotatably arranged to penetrate the support block (20).

4. The CNC machining positioning device with precise positioning function according to claim 3, characterized in that: A motor (2) is provided on the right side surface of the workbench (1), and an output shaft of the motor (2) penetrates into the cavity (19) and is connected to one end of the second threaded rod (14).

5. A numerical control machining positioning device with precise positioning function according to claim 4, characterized in that: The sides of the two clamping blocks (9) that are close to each other are both provided with a rubber layer, and the sides of the two clamping plates (13) that are close to each other are respectively provided with a sponge layer (21).

6. The CNC machining positioning device with precise positioning function according to claim 1, characterized in that: The rotating handle (5) is rotatably arranged on the front side surface of the workbench (1), and the pushing plate (12) and the clamping plate (13) are both slidably arranged on the top surface of the workbench (1).

7. The CNC machining positioning device with precise positioning function according to claim 6, characterized in that: The length direction of the cavity (19) is perpendicular to the length direction of the slide groove (10), the cavity (19) is located below the slide groove (10), and the two through grooves (15) are symmetrically distributed on the left and right sides of the slide groove (10).

8. The CNC machining positioning device with precise positioning function according to claim 7, characterized in that: The first threaded rod (11) is provided with two groups of external threads in opposite directions on the outside, and the two groups of external threads are symmetrically distributed on the left and right sides of the midpoint in the length direction of the first threaded rod (11).

9. A numerical control machining positioning device with precise positioning function according to claim 8, characterized in that: The exterior of the second threaded rod (14) is also provided with two sets of external threads in opposite directions, and the two sets of external threads on the exterior of the second threaded rod (14) are symmetrically distributed on the left and right sides of the support block (20).

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