Numerical control butt boring machine for machining castings of numerical control machine tool

Abstract

A main shaft at one end of equipment is a machining center main shaft and is horizontally mounted, a main shaft of a boring machine is arranged at the other end of the equipment and is horizontally mounted, and a workbench moves left and right to realize feeding. The coaxiality of two spindles of the equipment is required to be 0.01 mm, and the axis of the spindles is parallel to a moving workbench within 0.01 mm. The equipment is provided with different clamps according to different workpieces, side references and forward references of the clamps are adjusted to be parallel to a connecting line of two spindles, and the size is adjusted to be the same as the theoretical size of a machined workpiece. According to the device, secondary clamping and machining are avoided, and the machining precision is improved. According to the process innovation, the working time of workers is replaced by improvement of the equipment processing capacity, and the professional skill requirements of the workers are reduced.

Description

Technical Field

[0001] The invention relates to the field of machine tools, in particular to a numerically controlled boring machine for machining numerically controlled machine tool castings. Background Art

[0002] With the development of science and technology, the market has put forward stringent requirements on the accuracy, production cycle, production cost, etc. of CNC machine tools. How to survive and develop in the industry has become a challenge for all machine tool industries.

[0003] During the production process of machine tools, there are problems with processing steps and processing accuracy due to repeated positioning of bearing seats and motor seats during processing, and there is a problem of long positioning time for bearing seats and motor seats during the assembly process.

[0004] We now need a CNC machine tool host production equipment, the goal of which is to shorten the CNC machine tool production cycle, reduce the worker skill requirements, improve efficiency and save costs. Summary of the invention

[0005] The present invention aims to solve the problems of processing steps and processing accuracy in the production process of machine tools in the prior art due to repeated positioning of bearing seats and motor seats during processing, and the problem of long positioning time of bearing seats and motor seats during assembly. A CNC boring machine for processing CNC machine tool castings is provided to solve the above problems.

[0006] The present invention provides a CNC boring machine for processing CNC machine tool castings, comprising a bed, guide rails, a worktable, a machining center and a boring machine. The bed is horizontally arranged on the ground, and the top surface of the bed is a plane structure. The machining center and the boring machine are relatively fixedly arranged at the two ends of the top surface of the bed. The machining center spindle and the boring machine spindle are horizontally arranged, and the machining center spindle and the boring machine spindle are coaxial. The guide rails are arranged at the position between the machining center and the boring machine on the upper surface of the bed. The worktable is movably arranged between the machining center and the boring machine on the upper surface of the bed through the guide rails, and the moving stroke of the worktable is arranged along the projection of the connecting line of the machining center and the boring machine spindle on the bed.

[0007] The CNC boring machine for machining CNC machine tool castings described in the present invention is, as a preferred embodiment, a machining center including a machining center spindle, a machining center spindle box and a special tool. The machining center spindle box is arranged on the upper surface of the bed, the machining center spindle is rotatably arranged on one side of the spindle box, and the special tool is installed on the outer end of the machining center spindle.

[0008] The present invention discloses a CNC boring machine for machining CNC machine tool castings. As a preferred embodiment, the boring machine includes a boring machine spindle, a boring machine spindle box, a boring cutter and a servo motion assembly. The boring machine spindle box is arranged on the upper surface of the bed, the boring machine spindle is rotatably arranged laterally on one side of the boring machine spindle box, the boring cutter is arranged at the working end of the boring machine spindle, the servo motion assembly is installed on the boring machine spindle box, the working end of the servo motion assembly is connected to the assembly end of the boring machine spindle, and the servo motion assembly controls the reciprocating motion of the boring machine spindle.

[0009] The CNC boring machine for machining CNC machine tool castings of the present invention is preferably configured to adjust the boring machine spindle box so that the boring machine spindle tilts up 0.01 mm / 300 mm. When the boring machine spindle extends 700mm, the parallel error between the boring machine spindle axis and the end point of the worktable motion axis is less than 0.01mm.

[0010] The CNC boring machine for machining CNC machine tool castings described in the present invention, as a preferred method, adjusts the height and the joint surface of the machining center spindle box so that the coaxiality of the machining center spindle and the boring machine spindle reaches 0.01mm, and the parallel error with the end point of the moving spindle axis of the worktable is less than 0.01mm.

[0011] In the CNC boring machine for machining CNC machine tool castings described in the present invention, as a preferred embodiment, the movement of the worktable on the guide rail is controlled by a servo motor.

[0012] The beneficial effects of the present invention are as follows: This device casts the motor seat, bearing seat and machine tool into one, and through mechanical processing with special equipment, it improves the rigidity of the machine tool itself while saving production costs. The guide rail of the machine tool is used as the reference to process the bearing hole for installing the lead screw. The hole and end face are processed using a direct reference to avoid secondary clamping and processing, thereby improving processing accuracy. This process innovation replaces the workers' working time with the improvement of equipment processing capabilities, reduces the professional skill requirements of workers, has an industry demonstration role, and provides new ideas for the upgrading of CNC machine tool product structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of a CNC boring machine for machining CNC machine tool castings; Figure 2 It is a schematic diagram of a CNC boring machine processing center for processing CNC machine tool castings; Figure 3 The figure is a schematic diagram of a CNC boring machine for machining CNC machine tool castings.

[0014] Reference numerals: 1. Bed; 2. Guide rail; 3. Workbench; 4. Machining center; 41. Machining center spindle; 42. Machining center spindle box; 43. Special tool; 5. Boring machine; 51. Boring machine spindle; 52. Boring machine spindle box; 53. Boring tool; 54. Servo motion component. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0016] like Figure 1 As shown, a CNC boring machine for processing CNC machine tool castings includes a bed 1, a guide rail 2, a worktable 3, a machining center 4 and a boring machine 5. The bed 1 is arranged horizontally on the ground, and the top surface of the bed 1 is a flat structure. The machining center 4 and the boring machine 5 are relatively fixedly arranged at the two ends of the top surface of the bed 1. The machining center spindle 41 and the boring machine spindle 51 are arranged horizontally, and the machining center spindle 41 and the boring machine spindle 51 are coaxial. The guide rail 2 is arranged at a position between the machining center 4 and the boring machine 5 on the upper surface of the bed 1. The worktable 3 is movably arranged between the machining center 4 and the boring machine 5 on the upper surface of the bed 1 through the guide rail 2. The moving stroke of the worktable 3 is arranged along the projection of the line connecting the machining center 4 and the boring machine spindle 51 on the bed 1.

[0017] like Figure 2 As shown, the machining center 4 includes a machining center spindle 41, a machining center spindle box 42 and a special tool 43. The machining center spindle box 42 is arranged on the upper surface of the bed 1, the machining center spindle 41 is rotatably arranged on one side of the spindle box, and the special tool 43 is installed on the outer end of the machining center spindle 41.

[0018] like Figure 3 As shown, the boring machine 5 includes a boring machine spindle 51, a boring machine spindle box 52, a boring tool 53 and a servo motion assembly 54. The boring machine spindle box 52 is arranged on the upper surface of the bed 1, the boring machine spindle 51 is rotatably arranged on one side of the boring machine spindle box 52, the boring tool 53 is arranged at the working end of the boring machine spindle 51, and the servo motion assembly 54 is installed on the boring machine spindle box 52. The working end of the servo motion assembly 54 is connected to the assembly end of the boring machine spindle 51, and the servo motion assembly 54 controls the reciprocating motion of the boring machine spindle 51.

[0019] Specifically, the boring machine spindle box 52 is adjusted, and the boring machine spindle 51 is tilted up by 0.01mm / 300mm; When the boring machine spindle 51 extends 700 mm, the parallel error between the axis of the boring machine spindle 51 and the end point of the moving axis of the worktable 3 is less than 0.01 mm.

[0020] The height and the joint surface of the machining center spindle box 42 are adjusted so that the coaxiality of the machining center spindle 41 and the boring machine spindle 51 reaches 0.01 mm, and the parallel error with the end point of the moving spindle axis of the worktable 3 is less than 0.01 mm.

[0021] In this embodiment, the movement of the workbench 3 on the guide rail 2 is controlled by a servo motor.

[0022] The above description is only a preferred specific implementation manner 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CNC boring machine (5) for machining CNC machine tool castings, characterized in that: The invention comprises a bed (1), a guide rail (2), a worktable (3), a machining center (4) and a boring machine (5), wherein the bed is arranged horizontally on the ground, the top surface of the bed is a plane structure, the machining center (4) and the boring machine (5) are relatively fixedly arranged at two ends of the top surface of the bed, the machining center spindle (41) and the boring machine spindle (51) are arranged horizontally, the machining center spindle (41) and the boring machine spindle (51) are coaxial, the guide rail (2) is arranged at a position between the machining center (4) and the boring machine (5) on the upper surface of the bed (1), the worktable (3) is movably arranged between the machining center (4) and the boring machine (5) on the upper surface of the bed (1) through the guide rail (2), and the moving stroke of the worktable (3) is arranged along the projection of the line connecting the machining center (4) and the boring machine spindle (51) on the bed (1).

2. A CNC boring machine for machining CNC machine tool castings according to claim 1, characterized in that: The machining center (4) comprises a machining center spindle (41), a machining center spindle box (42) and a special tool (43); the machining center spindle box (42) is arranged on the upper surface of the bed (1); the machining center spindle (41) is rotatably arranged on one side of the spindle box; and the special tool (43) is installed on the outer end of the machining center spindle (41).

3. A CNC boring machine for machining CNC machine tool castings according to claim 2, characterized in that: The boring machine (5) comprises a boring machine spindle (51), a boring machine spindle box (52), a boring cutter (53) and a servo motion assembly (54); the boring machine spindle box (52) is arranged on the upper surface of the bed (1); the boring machine spindle (51) is arranged on one side of the boring machine spindle box (52) in a rotatable manner; the boring cutter (53) is arranged at the working end of the boring machine spindle (51); the servo motion assembly (54) is installed on the boring machine spindle box (52); the working end of the servo motion assembly (54) is connected to the assembly end of the boring machine spindle (51); and the servo motion assembly (54) controls the reciprocating motion of the boring machine spindle (51).

4. A CNC boring machine for machining CNC machine tool castings according to claim 3, characterized in that: The boring machine spindle box (52) is adjusted so that the boring machine spindle (51) is tilted up by 0.01 mm / 300 mm; When the boring machine spindle (51) extends 700 mm, the parallel error between the axis of the boring machine spindle (51) and the end point of the moving axis of the worktable (3) is less than 0.01 mm.

5. A CNC boring machine for machining CNC machine tool castings according to claim 4, characterized in that: The height and the joint surface of the machining center spindle box (42) are adjusted so that the machining center spindle (41) and the boring machine spindle (51) are coaxial to within 0.01 mm, and the parallel error with the end point of the moving spindle axis of the workbench (3) is less than 0.01 mm.

6. A CNC boring machine for machining CNC machine tool castings according to claim 1, characterized in that: The movement of the workbench (3) on the guide rail (2) is controlled by a servo motor.

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