Novel distance follow-up adjusting device and numerical control cutting machine

Abstract

The utility model provides a novel distance follow-up adjusting device and a numerical control cutting machine, and belongs to the technical field of numerical control cutting automatic machining. The novel distance follow-up adjusting device comprises a displacement driving mechanism used for driving a cutting head assembly to ascend and descend, and a displacement sensor is installed at the fixed end of the displacement driving mechanism; a position detection device is installed at the power output end of the displacement driving mechanism, the position detection device is located on the sensing side of the displacement sensor, the position detection device can move along with a cutting head assembly installed at the power output end of the displacement driving mechanism, and the displacement sensor is electrically connected with a lifting controller. The lifting controller can control the working state of the displacement driving mechanism. The follow-up adjusting device has the advantages that the problems that an existing follow-up adjusting device is low in flexibility, incapable of adapting to various working conditions, high in cost and complex in later maintenance are solved, and the follow-up adjusting device can be widely applied to various numerical control cutting machines.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control cutting automatic processing, and specifically relates to a novel distance follow-up adjustment device and a numerical control cutting machine. Background Art

[0002] With the development of modern machinery industry, the market's requirements for work efficiency and product quality of plate cutting processing have also increased. In order to improve work efficiency and product quality, most manufacturers have begun to use CNC cutting machines for plate cutting processing. Compared with manual and semi-automatic cutting methods, CNC cutting can effectively improve the efficiency and quality of plate cutting and reduce the labor intensity of operators.

[0003] At present, when using CNC cutting machines to cut steel plates, due to the different specifications and varieties of the plates processed, and the warping of large-format plates, manufacturers generally choose to install arc voltage follow-up adjustment devices or capacitor follow-up adjustment devices on the CNC cutting machines. That is, existing manufacturers generally install arc voltage follow-up adjustment devices on CNC plasma cutting machines, and install capacitor follow-up adjustment devices on CNC laser cutting machines and CNC flame cutting machines, so as to achieve relatively consistent distance between the cutting torch and the plate and ensure cutting quality.

[0004] However, due to the complex structure, strong professionalism and low flexibility of the above two adjustment devices, they can generally only be used for professional equipment, and for some small enterprises, their costs are relatively high. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a novel distance follow-up adjustment device and a CNC cutting machine which are adaptable to various working conditions and have low cost, so as to reduce the overall cost of the CNC cutting machine.

[0006] In order to solve the above technical problems, the utility model provides, on the one hand, a new distance follow-up adjustment device, which includes a displacement drive mechanism for driving the cutting head assembly to rise and fall, a displacement sensor is installed at the fixed end of the displacement drive mechanism, and a position detection device is installed at the power output end of the displacement drive mechanism. The position detection device is located on the sensing side of the displacement sensor, and the position detection device can follow the cutting head assembly installed at the power output end of the displacement drive mechanism, the displacement sensor is electrically connected to a lifting controller, and the lifting controller can control the working state of the displacement drive mechanism. At this time, on the one hand, after the equipment is started, the distance between the displacement sensor and the position detection device can be measured by the displacement sensor to determine whether the cutting head assembly and the position detection device have moved to the reference position, that is, whether they have moved to the zero position in the initial state of the equipment; on the other hand, during the operation of the equipment, that is, during the operation of the cutting head assembly along the working path, the distance between the displacement sensor and the position detection device can be detected in real time, and based on the data, the relationship between the data and the preset standard dead zone parameter range can be analyzed to determine whether the cutting head assembly accurately follows the preset follow-up parameters in the CNC cutting machine, and when the detected value is greater than the dead zone parameter range, the displacement drive mechanism can be controlled to move down through the lifting controller, otherwise it can be controlled to move up, so as to achieve the purpose of follow-up adjustment of the displacement drive mechanism. Moreover, compared with the traditional follow-up adjustment device, since the utility model adopts a structure arranged on the displacement drive mechanism for driving the lifting of the cutting head assembly, the feedback between the displacement sensor and the position detection device is not easily affected by the operation of the cutting head assembly. In addition to the advantages of simple structure, low cost and convenient operation, it also has the advantages of being less affected by the cutting operation, high flexibility and being able to adapt to various working conditions.

[0007] Furthermore, the displacement drive mechanism is a ball screw drive mechanism, the position detection device is installed on a nut seat on the ball screw drive mechanism for fixing the cutting head assembly, and the displacement sensor is installed on a frame of the ball screw drive mechanism.

[0008] Furthermore, a protective cover is provided on the outer side covers of the position detection device and the displacement sensor, and the protective cover prevents the feedback between the position detection device and the displacement sensor from being affected by the outside world.

[0009] Furthermore, the displacement sensor is an optical displacement sensor, and the optical displacement sensor can calculate the position of the position detection device according to the change of the measured light. In addition, the displacement sensor can also be an acoustic wave displacement sensor, and the acoustic wave displacement sensor can calculate the position of the position detection device according to the time it takes for the measured sound wave to travel from the acoustic wave displacement sensor to the position detection device and back.

[0010] Furthermore, the displacement sensor is a laser displacement sensor, and the laser emitted by the laser displacement sensor can be irradiated on the surface of the position detection device to determine its position.

[0011] On the other hand, the utility model provides a CNC cutting machine, which includes the above-mentioned novel distance follow-up adjustment device.

[0012] Furthermore, it also includes a cutting head assembly, which is installed at the power output end of the displacement drive mechanism of the novel distance follow-up adjustment device.

[0013] Furthermore, the cutting head assembly is a plasma cutting head assembly.

[0014] Furthermore, the cutting head assembly is a laser cutting head assembly.

[0015] Furthermore, the cutting head assembly is a flame cutting head assembly.

[0016] It can be seen from the above technical solutions that the utility model has the following advantages: it solves the problems of low flexibility, inability to adapt to various working conditions, high cost and complex subsequent maintenance existing in the existing follow-up adjustment device, and can be widely used in various CNC cutting machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a front view of a specific implementation mode of the utility model;

[0019] Figure 2 It is a side view of a specific implementation method of the utility model.

[0020] In the figure: 1. Cutting head assembly; 2. Displacement drive mechanism; 3. Position detection device; 4. Displacement sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] like Figure 1 to Figure 2 As shown, the first embodiment of the present invention provides a novel distance follow-up adjustment device, which includes a displacement drive mechanism 2 for driving the cutting head assembly 1 to rise and fall, the displacement drive mechanism 2 preferably adopts a ball screw drive mechanism, and a displacement sensor 4 is installed at the fixed end of the displacement drive mechanism 2, the displacement sensor 4 can be any one of an optical displacement sensor 4, an acoustic wave displacement sensor 4, etc., and a laser displacement sensor 4 is preferably used; a position detection device 3 is installed at the power output end of the displacement drive mechanism 2, the position detection device 3 is located on the sensing side of the displacement sensor 4, and the position detection device 3 can follow the cutting head assembly 1 installed at the power output end of the displacement drive mechanism 2, and the displacement sensor 4 is electrically connected to a lifting controller, and the lifting controller can control the working state of the displacement drive mechanism 2.

[0024] At this time, on the one hand, after the equipment is started, it can determine whether the cutting head assembly 1 and the position detection device 3 have moved to the reference position through the distance between the displacement sensor 4 and the position detection device 3, that is, determine whether the cutting head assembly 1 has moved to the zero position in the initial state of the equipment under the action of the displacement drive mechanism 2, so as to achieve accurate positioning of the cutting head assembly 1; on the other hand, it can detect the distance between the cutting head assembly 1 and the position detection device 3 in real time through the displacement sensor 4 during the operation of the equipment, that is, during the operation of the cutting head assembly 1 along the working path, and based on the data, it can determine whether the cutting head assembly 1 accurately follows the follow-up parameters preset in the CNC cutting machine by analyzing the size relationship between the data and the standard dead zone parameter range preset in the system of the CNC cutting machine, that is, when the detected value is greater than the dead zone parameter range, the displacement drive mechanism 2 can be controlled to move downward through the lifting controller, otherwise it can be raised, so as to ensure that the displacement of the cutting head assembly 1 always meets the follow-up parameters preset in the CNC cutting machine, that is, to achieve the purpose of follow-up adjustment of the displacement drive mechanism 2.

[0025] In addition, as a preference, in the first embodiment, a protective cover may be provided on the outer sides of the position detection device 3 and the displacement sensor 4, and the protective cover may be used to prevent the feedback between the position detection device 3 and the displacement sensor 4 from being affected by the outside world.

[0026] Embodiment 2

[0027] The second embodiment provides a CNC cutting machine, which includes a cutting head assembly 1, on which the above-mentioned new distance follow-up adjustment device is installed, and the cutting head assembly 1 can be any one of a plasma cutting head assembly, a laser cutting head assembly, and a flame cutting head assembly.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel distance follow-up adjustment device, comprising a displacement drive mechanism for driving the cutting head assembly to rise and fall; characterized in that: A displacement sensor is installed at the fixed end of the displacement drive mechanism, and a position detection device is installed at the power output end of the displacement drive mechanism. The position detection device is located on the sensing side of the displacement sensor, and the position detection device can follow the cutting head assembly installed at the power output end of the displacement drive mechanism. The displacement sensor is electrically connected to a lifting controller, and the lifting controller can control the working state of the displacement drive mechanism.

2. The novel distance follow-up adjustment device according to claim 1 is characterized in that: The displacement driving mechanism is a ball screw driving mechanism, the position detection device is installed on a nut seat on the ball screw driving mechanism for fixing the cutting head assembly, and the displacement sensor is installed on the frame of the ball screw driving mechanism.

3. The novel distance follow-up adjustment device according to claim 1 is characterized in that: The outer side covers of the position detection device and the displacement sensor are provided with protective covers.

4. The novel distance follow-up adjustment device according to claim 1, 2 or 3, characterized in that: The displacement sensor is an optical displacement sensor.

5. The novel distance follow-up adjustment device according to claim 4 is characterized in that: The displacement sensor is a laser displacement sensor.

6. A CNC cutting machine, characterized in that: It comprises a novel distance follow-up adjustment device according to any one of claims 1-5.

7. The CNC cutting machine according to claim 6, characterized in that: It also includes a cutting head assembly, which is installed at the power output end of the displacement drive mechanism of the novel distance follow-up adjustment device.

8. The CNC cutting machine according to claim 7, characterized in that: The cutting head assembly is a plasma cutting head assembly.

9. The CNC cutting machine according to claim 7, characterized in that: The cutting head assembly is a laser cutting head assembly.

10. The CNC cutting machine according to claim 7, characterized in that: The cutting head assembly is a flame cutting head assembly.

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