Numerically-controlled machine tool convenient to maintain and return

Abstract

The utility model discloses a numerical control machine tool convenient to maintain and return, which comprises a machine tool main body, a saddle arranged on the machine tool main body and a workbench arranged on the saddle, the saddle longitudinally moves on the machine tool main body, and the workbench transversely moves on the saddle. The device is characterized in that a first original point label is arranged on the front end face of the workbench, a second original point label is installed on the front end face of the saddle, the bottom plane of the first original point label is arranged above the top plane of the second original point label, a first marking arrow is arranged on the front end face of the first original point label, and a second marking arrow is arranged on the front end face of the second original point label. A second marking arrow is arranged on the front end face of the second original point label, and when the three axes of the machine tool body move to the initial position, the first marking arrow is right opposite to the second marking arrow. According to the utility model, the three-axis origin searching and adjusting efficiency is improved, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a numerical control machine tool, in particular to a numerical control machine tool which is convenient for maintenance and restoration. Background Art

[0002] CNC machine tools, short for digitally controlled machine tools, are automated machine tools equipped with a program-controlled 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 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. CNC machine tools effectively address the challenges of machining complex, precise, small-batch, and high-variety parts. They are flexible, high-performance automated machine tools that represent the development direction of modern machine tool control technology and are typical mechatronic products.

[0003] With the rapid development of modern manufacturing industry, higher requirements are placed on processing machine tools. As the market competition pressure becomes increasingly greater, major machine tool manufacturers not only ensure the quality of production equipment, but also require to improve maintenance efficiency.

[0004] A CNC machine tool collision refers to an accident caused by an accidental collision of the moving parts of the machine tool, such as the spindle hitting the workbench, which may cause damage to the spindle, workbench and the accuracy of the machine tool. The XY axis may also collide, such as when a foreign object falls into the moving range and the axis collides and gets stuck after movement. If a collision occurs, it needs to be repaired. After the repair, it needs to be reset to the origin, which requires the use of a combination of multiple instruments to achieve accurate repositioning. This method will lead to relatively low maintenance efficiency. Therefore, how to improve the maintenance and reset efficiency is a direction that technical personnel in this field need to work on. Summary of the Invention

[0005] The utility model aims to provide a CNC machine tool which is convenient for repair and restoration. By using the structure, the CNC machine tool can be easily restored for repair and restoration, thereby improving the maintenance efficiency.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a CNC machine tool that is easy to repair and return to its original position, comprising a machine tool body, a saddle arranged on the machine tool body and a workbench arranged on the saddle, the saddle moves longitudinally on the machine tool body, and the workbench moves laterally on the saddle, a first origin sign is provided on the front end face of the workbench, a second origin sign is installed on the front end face of the saddle, the bottom plane of the first origin sign is arranged above the top plane of the second origin sign, a first marking arrow is provided on the front end face of the first origin sign, and a second marking arrow is provided on the front end face of the second origin sign, when the three axes of the machine tool body move to the starting position, the first marking arrow is arranged opposite to the second marking arrow.

[0007] In the above technical solution, the second origin sign is connected to the saddle via a bracket.

[0008] In the above technical solution, the bracket includes a Z-shaped plate, and the Z-shaped plate includes a horizontal plate, a front side plate and a rear side plate. The rear side plate is installed on the front end surface of the saddle, the rear end of the horizontal plate is vertically connected to the top of the rear side plate, the bottom of the front side plate is vertically connected to the front end of the horizontal plate, and the second origin sign is installed on the front end surface of the front side plate.

[0009] In the above technical solution, telescopic guards are respectively provided on both sides of the workbench, and workbench covers are respectively provided on the front and rear sides of the workbench. The two ends of the workbench cover are respectively connected to the telescopic guards on both sides, and the first origin sign is installed on the front side of the front workbench cover.

[0010] In the above technical solution, the front end surface of the first origin sign and the front end surface of the second origin sign are arranged on the same plane.

[0011] In the above technical solution, the first marking arrow is set downward, and the second marking arrow is set upward.

[0012] In the above technical solution, there is a vertical distance between the bottom plane of the first origin sign and the top plane of the second origin sign;

[0013] The bottom of the first marking arrow is arranged close to the bottom surface of the first origin sign, and the top of the second marking arrow is arranged close to the top surface of the second origin sign.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] 1. In the utility model, a first origin sign and a second origin sign with corresponding marking arrows are respectively provided on the workbench and the saddle. When the three axes of the machine tool body move to the starting position, the first marking arrow will be opposite to the second marking arrow. In this way, after the CNC machine tool is crashed and repaired, the three-axis origin of the CNC machine tool can be quickly reset and positioned, and the three-axis origin position can be quickly found or adjusted, thereby improving the maintenance efficiency and ensuring the processing efficiency of subsequent products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the first embodiment of the present invention;

[0017] Figure 2 yes Figure 1 A partial enlarged view (at the first and second origin signs)

[0018] Figure 3 yes Figure 1 Side view of;

[0019] Figure 4 yes Figure 3 A partial enlarged view (at the first and second origin signs).

[0020] Among them: 1. Machine tool body; 2. Saddle; 3. Workbench; 4. First origin sign; 5. Second origin sign; 6. First marking arrow; 7. Second marking arrow; 8. Spindle; 9. Column; 10. Bracket; 11. Telescopic cover; 12. Workbench cover; 13. Horizontal plate; 14. Front side plate; 15. Rear side plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Example 1: See Figure 1-4 As shown, a CNC machine tool that is easy to repair and return to its original position includes a machine tool body 1, a saddle 2 arranged on the machine tool body 1, and a workbench 3 arranged on the saddle 2. The saddle 2 moves longitudinally on the machine tool body 1, and the workbench 3 moves laterally on the saddle 2. A first origin sign 4 is provided on the front end face of the workbench 3, and a second origin sign 5 is installed on the front end face of the saddle 2. The bottom plane of the first origin sign 4 is set above the top plane of the second origin sign 5. A first marking arrow 6 is provided on the front end face of the first origin sign 4, and a second marking arrow 7 is provided on the front end face of the second origin sign 5. When the three axes of the machine tool body 1 move to the starting position, the first marking arrow 6 is set opposite to the second marking arrow 7.

[0023] In this embodiment, the machine tool body 1 has a spindle 8 mounted on a column 9 of the machine tool body 1. The column is set at the rear end of the saddle. The spindle can move up and down along the column, that is, the spindle can move along the Z axis (the spindle moves vertically on the column through the machine head. When the machine head moves vertically, the spindle follows the machine head). The worktable moves horizontally on the saddle, that is, it can move in the X axis direction. The saddle moves longitudinally on the machine tool body, that is, the saddle can drive the worktable to move synchronously in the Y axis direction. Among them, the three axes of the machine tool body are X, Y, and Z axes respectively. The saddle has an X-axis drive mechanism that drives the worktable to move horizontally on the saddle along the X axis. The machine tool body has a Y-axis drive mechanism that drives the saddle to move along the Y axis on the machine tool body. The column has a Z-axis drive mechanism that drives the spindle to move vertically on the column along the Z axis. When the X-axis drive mechanism, the Y-axis drive mechanism and the Z-axis drive mechanism drive the corresponding workbench, the saddle and the spindle to move to the starting position (that is, when the three axes move to the starting position), the first mark arrow will be set opposite the second mark arrow. Among them, since the spindle moves in the Z-axis direction, if there is a collision problem between the spindle and the workbench, the workbench may be offset in the X-axis direction and the Y-axis direction relative to the saddle. After repairing it, the three axes move to the starting position. If there is a deviation in the X-axis and / or Y-axis direction between the first mark arrow and the second mark arrow, the CNC machine tool is electrically controlled or mechanically adjusted according to the measured deviation value until the three axes are in the starting position and the first mark arrow is opposite the second mark arrow. In this way, the position of the workbench and the saddle can be quickly reset, aligned, repaired and adjusted, so as to quickly find the three-axis origin position or adjust the three-axis origin position. If other collisions also cause deviations between the workbench and the saddle, the above method should be followed. After maintenance, and after the three axes move to the starting position, adjustments and repairs should be performed based on the deviation in the Y-axis direction between the first mark arrow and the second mark arrow. If only the saddle and the workbench have position deviations relative to the spindle at the same time, then after the three axes move to the starting position, the first mark arrow faces the second mark arrow. The maintenance and debugging personnel can use tools to measure the position between the first mark arrow and / or the second mark arrow and the spindle, and then make adjustments without adjusting the relative position between the workbench and the saddle. In this way, maintenance efficiency can be improved, thereby improving the processing efficiency of subsequent workpieces.

[0024] Among them, in order to ensure that the staff can easily identify the relative position between the first origin sign and the second origin sign, so that when the three axes move to the starting position, they can accurately judge or use tools to accurately judge whether the origin position of the three axes has been found, therefore, the front end face of the first origin sign and the front end face of the second origin sign are set on the same plane.

[0025] In this embodiment, there is a longitudinal gap between the front end surfaces of the saddle and the workbench. Therefore, to ensure that the second origin sign is facing the first origin sign, the second origin sign 5 is connected to the saddle 2 via a bracket 10. This ensures that after the three axes move to their starting positions, the first origin sign will face the second origin sign, with their front end surfaces on the same plane.

[0026] See also Figure 1-4 As shown, telescopic guards 11 are respectively provided on both sides of the workbench 3, and workbench covers 12 are respectively provided on the front and rear sides of the workbench 3. The two ends of the workbench cover 12 are respectively connected to the telescopic guards 11 on both sides, and the first origin sign 4 is installed on the front side of the front workbench cover 12.

[0027] The telescopic shield and table cover prevent metal chips from entering the X-axis drive mechanism during machining, thereby ensuring the machining accuracy and service life of the CNC machine tool and reducing maintenance. Therefore, the first origin sign is installed on the front face of the table cover.

[0028] See also Figure 4 As shown, the bracket 10 includes a Z-shaped plate, which includes a transverse plate 13, a front side plate 14 and a rear side plate 15. The rear side plate 15 is installed on the front end surface of the saddle 2, the rear end of the transverse plate 13 is vertically connected to the top of the rear side plate 15, the bottom of the front side plate 14 is vertically connected to the front end of the transverse plate 13, and the second origin sign 5 is installed on the front end surface of the front side plate 14.

[0029] In this embodiment, the front side plate is arranged parallel to the rear side plate, and the arrangement of the Z-shaped plate allows the second origin sign to extend forward so as to face the first origin sign.

[0030] Furthermore, to quickly find the origin of the three axes, after the three axes have moved to their initial positions, the first marking arrow is set downward and the second marking arrow is set upward. This way, the first marking arrow is directly opposite the second marking arrow, allowing the operator to most intuitively check whether the origin of the three axes has been reset.

[0031] More preferably, the first marking arrow and the second marking arrow are also coated with color markings, which makes them more eye-catching.

[0032] See also Figure 4 As shown, there is a vertical distance between the bottom plane of the first origin sign and the top plane of the second origin sign;

[0033] The bottom of the first marking arrow is arranged close to the bottom surface of the first origin sign, and the top of the second marking arrow is arranged close to the top surface of the second origin sign.

[0034] There is a vertical distance between the first origin sign and the second origin surface, which can prevent the two from colliding with each other during the lateral movement of the workbench. At the same time, the vertical distance between the two is relatively small, and the corresponding marking arrows are relatively close, so it is relatively intuitive to observe whether the two are aligned, which facilitates the rapid search, resetting and adjustment of the three-axis origin of the CNC machine tool.

Claims

1. A CNC machine tool that is easy to repair and return to its original position, comprising a machine tool body, a saddle mounted on the machine tool body, and a workbench mounted on the saddle, wherein the saddle moves longitudinally on the machine tool body and the workbench moves transversely on the saddle, characterized in that: A first origin sign is provided on the front end surface of the workbench, and a second origin sign is installed on the front end surface of the saddle. The bottom plane of the first origin sign is arranged above the top plane of the second origin sign. A first marking arrow is provided on the front end surface of the first origin sign, and a second marking arrow is provided on the front end surface of the second origin sign. When the three axes of the machine tool body move to the starting position, the first marking arrow is arranged opposite to the second marking arrow.

2. The CNC machine tool that is easy to repair and return to its original position according to claim 1, characterized in that: The second origin sign is connected to the saddle via a bracket.

3. The CNC machine tool that is easy to repair and return to its original position according to claim 2, characterized in that: The bracket includes a Z-shaped plate, which includes a horizontal plate, a front side plate and a rear side plate. The rear side plate is installed on the front end surface of the saddle, the rear end of the horizontal plate is vertically connected to the top of the rear side plate, the bottom of the front side plate is vertically connected to the front end of the horizontal plate, and the second origin sign is installed on the front end surface of the front side plate.

4. The CNC machine tool that is easy to repair and return to its original position according to claim 1, characterized in that: Telescopic guards are respectively provided on both sides of the workbench, and workbench covers are respectively provided on the front and rear sides of the workbench. Both ends of the workbench cover are respectively connected to the telescopic guards on both sides, and the first origin sign is installed on the front side of the front workbench cover.

5. The CNC machine tool that is easy to repair and return to its original position according to claim 1, characterized in that: The front end surface of the first origin sign and the front end surface of the second origin sign are arranged on the same plane.

6. The CNC machine tool that is easy to repair and return to its original position according to claim 1, characterized in that: The first marking arrow is set downward, and the second marking arrow is set upward.

7. The CNC machine tool that is easy to repair and return to its original position according to claim 1, characterized in that: There is a vertical distance between the bottom plane of the first origin sign and the top plane of the second origin sign; The bottom of the first marking arrow is arranged close to the bottom surface of the first origin sign, and the top of the second marking arrow is arranged close to the top surface of the second origin sign.

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