Dual channel three spindle box CNC machine tool

Abstract

The dual-channel three-spindle box CNC machine tool solves the problems in the prior art of low efficiency in processing large quantities of workpieces, inability to complete one-time processing of workpieces, and synchronous processing of multiple workpieces; the technical solution to the technical problem includes a base, on which a first spindle box, a second spindle box and a third spindle box are arranged, the first spindle box is non-sliding, the second spindle box and the third spindle box both slide along a plane perpendicular to the axis of the spindle, the first spindle box and the second spindle box are arranged in the same row; the second spindle box and the third spindle box can slide until their axes are in line; a first servo slide located in the middle of the first spindle box, the second spindle box and the third spindle box is installed on the base, and a loading mechanism located on one side of the first spindle box is installed on the base; the utilization rate of each processing component of the machine tool can be effectively improved, and the three axes can be processed synchronously to improve work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled machine tools, in particular to a double-channel three-spindle box numerically controlled machine tool. Background Art

[0002] CNC machine tools are automated machine tools equipped with program control systems. They can effectively solve the problems of complex, precise, small-batch, and multi-variety parts processing. They are flexible and high-efficiency automated machine tools. They represent the development direction of modern machine tool control technology and are a typical mechatronics product.

[0003] However, when existing ordinary CNC machine tools process large quantities of parts, especially workpieces that require multi-faceted processing, the positioning surface of the workpiece also needs to be processed. Therefore, in actual processing, the clamping state of the workpiece needs to be switched in the middle to complete the processing of the original reference surface, which greatly affects the production efficiency for large-scale processing of parts; for example, for the processing of pipe joints, the structure of this part is not complicated, but the end faces and the inner hole on both sides need to be processed separately, and the two sides serve as references to each other during the processing, which results in the need for traditional ordinary machine tools and CNC machine tools to change the clamping method to complete the processing on both sides, which will seriously slow down the progress for large-scale orders; in addition, the existing machine tools can only complete one processing procedure at a time, such as drilling and turning. When CNC machine tools are used, they are generally carried out separately, and the tool needs to be replaced for operation, which also affects the efficiency; in addition, the existing multi-axis CNC machine tools generally can only have one spindle for processing, during which other spindles are idle, and the utilization rate of multiple spindles is not high, which greatly reduces the overall processing efficiency of the CNC machine tools.

[0004] Therefore, it is very necessary to design a device that can automatically and quickly switch the clamping state, and can automatically carry out each process simultaneously on one device, from feeding to finished product discharge, and complete it in one go. Summary of the invention

[0005] The purpose of the present invention is to provide a dual-channel three-spindle box CNC machine tool to solve the problems in the prior art of low processing efficiency for large quantities of workpieces, inability to complete the one-time processing of workpieces, inability to process multiple workpieces synchronously, and inability to efficiently utilize multiple spindles of the machine tool.

[0006] The present invention provides a dual-channel three-spindle box CNC machine tool, and its technical solution to solve the technical problem includes a base, on which are provided three mutually parallel and distributed in two rows a first spindle box, a second spindle box and a third spindle box, the first spindle box being non-sliding, and the second spindle box and the third spindle box both sliding along a plane perpendicular to their spindle axes, the first spindle box and the second spindle box being arranged in the same row; the second spindle box and the third spindle box being slidable until their axes are in line; a first servo slide located in the middle of the first spindle box, the second spindle box and the third spindle box is installed on the base, and a loading mechanism located on one side of the first spindle box is installed on the base.

[0007] Preferably, a second saddle and a second slide are provided on the base; the second spindle box is assembled with the second saddle and the second slide through a lead screw and a linear rail to realize the movement of the second spindle box X / Z axis coordinates; a third saddle and a third slide are provided on the base; the third spindle box is assembled with the third saddle and the third slide through a lead screw and a linear rail to realize the movement of the third spindle box X / Z axis coordinates.

[0008] Preferably, a support frame is fixed on the base, a first servo slide arranged along the sliding direction of the second spindle box is installed on the support frame, and a hydraulic chuck is installed on the first servo slide.

[0009] Preferably, a fixed knife seat is provided at one end of the support frame away from the feeding mechanism.

[0010] Preferably, the feeding mechanism comprises a bracket fixed to the side wall of the base, a second servo slide perpendicular to the first servo slide is mounted on the bracket, and a manipulator is mounted on the second servo slide.

[0011] Preferably, the second servo slide can move along the Y / Z axis coordinates, and the manipulator is controlled by a servo mechanism to achieve angle adjustment.

[0012] Preferably, the second spindle box is provided with an inner support collet for supporting and clamping the workpiece from the inner hole of the workpiece.

[0013] Preferably, the third spindle box is provided with an outer clamping collet for supporting and clamping the workpiece from the outer edge of the workpiece.

[0014] Preferably, the hydraulic chuck can cooperate with the feeding mechanism, the first spindle box and the second spindle box respectively.

[0015] Preferably, the first spindle box, the second spindle box and the third spindle box are all equipped with a servo power head.

[0016] The present invention designs a CNC machine tool with three mutually parallel spindles, and completes different processing procedures respectively during the processing. The first spindle box is a drilling spindle, which is a fixed axis and cannot slide. The second spindle box and the third spindle box are structures that can move the X / Z axis coordinates, and the second spindle box and the third spindle box are distributed in two rows to form an overall structure of three spindles and two channels. In the actual working process, the feeding mechanism is directly vibrated to feed the material, and the manipulator is cooperated to realize the workpiece being sent into the hydraulic chuck for processing. The workpiece is first drilled through the first spindle box, and the servo drive of the hydraulic chuck controls the workpiece to automatically enter the second spindle box for processing in the next process. The second spindle box and the hydraulic chuck can automatically dock the workpiece, and the processing of one side of the workpiece can be completed on the second spindle box. The second spindle box and the third spindle box can also be moved to the same axis to dock the workpiece, so as to realize the switching of the clamping surface and the processing surface of the workpiece, and cooperate with the fixed tool holder to process the other side of the workpiece.

[0017] In summary, the technical solution of the present invention has at least the following beneficial effects:

[0018] 1. The workpiece can complete all processing procedures on one machine tool; the degree of automation is high and the processing efficiency is significantly improved;

[0019] 2. During the processing of each component, multiple workpieces can be processed in different processes simultaneously, realizing three-axis synchronous work and high machine tool utilization;

[0020] 3. During the machining process, the clamping, docking, and face-changing of the workpiece are all automatically controlled by the internal mechanism of the machine tool, reducing manual participation and improving accuracy and efficiency;

[0021] 4. The various components of the machine tool are designed with a compact structure, making it easy to transfer between various workpiece processing procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a top view of the present invention;

[0024] Figure 2 is a rear cross-sectional view of the present invention;

[0025] Figure 3 It is a stereogram of the present invention;

[0026] Figure 4 It is a schematic diagram of feeding of the present invention;

[0027] Figure 5 This is a schematic diagram of loading material by the robot of the present invention;

[0028] Figure 6 It is a schematic diagram of the workpiece docking between the second spindle box and the third spindle box of the present invention;

[0029] Figure 7 It is a schematic diagram of the third spindle box and the fixed tool holder for turning processing according to the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] By the attached Figure 1-7 It can be seen that the present invention provides a dual-channel three-spindle box CNC machine tool, including a base 1. The base 1 is provided with three mutually parallel and relatively distributed in two rows of a first spindle box 2, a second spindle box 3 and a third spindle box 4, the first spindle box 2 is non-sliding, and the second spindle box 3 and the third spindle box 4 both slide along a plane perpendicular to their spindle axes, and the first spindle box 2 and the second spindle box 3 are arranged in the same row; ordinary CNC machining machine tools generally have only a single spindle or a two-spindle design, and the present invention adds a design of the first spindle box 2, and the first spindle box 2 is a fixed axis used as a drilling axis; a support frame 10 is fixed on the base 1, and a support frame 10 is installed on the support frame 10 along the sliding direction of the second spindle box 3 A first servo slide 5 is arranged in the direction of rotation, and a hydraulic chuck 11 is installed on the first servo slide 5; the hydraulic chuck 11 is used to fix the workpiece, and the hydraulic chuck 11 is controlled by the first servo slide 5. The first spindle box 2, the second spindle box 3 and the third spindle box 4 are all equipped with servo power heads. The first servo slide 5 can control the hydraulic chuck 11 to move to different stations corresponding to different spindle boxes to complete different processing procedures; the second spindle box 3 and the third spindle box 4 can slide until their axes are in line; when the two are in line, the workpieces can be docked to achieve the switching of the processing surfaces, and a loading mechanism located on one side of the first spindle box 2 is installed on the base 1; the loading mechanism adopts a direct vibration feeding method for loading.

[0032] One of the preferred embodiments of the present invention is that the base 1 is provided with a second saddle 6 and a second slide 7; the second spindle box 3 is assembled with the second saddle 6 and the second slide 7 by a lead screw and a linear rail to realize the movement of the X / Z axis coordinates of the second spindle box 3; the base 1 is provided with a third saddle 8 and a third slide 9; the third spindle box 4 is assembled with the third saddle 8 and the third slide 9 by a lead screw and a linear rail to form the movement of the X / Z axis coordinates of the third spindle box 4; both the second spindle box 3 and the third spindle box 4 can realize the movement of the X / Z axis coordinates, and in the specific working process, corresponding sliding can be performed as needed to complete the docking and processing of the workpieces.

[0033] In the present invention, a fixed tool holder 12 is provided on the support frame 10; two fixed tool holders 2 are designed, which are respectively responsible for cooperating with the second spindle box 3 and the third spindle box 4 to form a turning mechanism. In the specific processing process, a cutting tool is fixed on the fixed tool holder 12, and the workpiece is clamped on the second spindle box 3 and the third spindle box 4. The workpiece is processed by the rotation of the spindle box and the cutting tool, which is different from the principle of workpiece processing by rotating the tool in traditional machine tool processing.

[0034] In order to realize the automated operation of loading, the loading mechanism includes a bracket 13 fixed to the side wall of the base 1, on which is mounted a second servo slide 14 perpendicular to the first servo slide 5, and on which is mounted a manipulator 15; the second servo slide 14 can move along the Y / Z axis coordinates, and the manipulator 15 is controlled by a servo mechanism to achieve angle adjustment; the manipulator 15 controls the workpiece in the loading mechanism and delivers the workpiece to the hydraulic chuck 11 through the movement of the second servo slide 14 and the rotation of the manipulator 15.

[0035] In the present invention, clamps are respectively provided on the second spindle box 3 and the third spindle box 4, but the types of the two clamps are different. The second spindle box 3 is provided with an inner support collet 16 for supporting and clamping the workpiece from the inner hole of the workpiece; the third spindle box 4 is provided with an outer clamp collet 17 for supporting and clamping the workpiece from the outer edge of the workpiece; the selection of the clamp takes into account the needs of the machining surface and the convenience of unloading. The third spindle box 4 is the last machining process. After the machining is completed, the outer clamp collet 17 is used to facilitate automatic unloading.

[0036] The hydraulic chuck 11 can cooperate with the feeding mechanism, the first spindle box 2 and the second spindle box 3 respectively; the hydraulic chuck 11 has three working positions during the working process, namely A, B and C as shown in the attached figure. Figure 2 shown.

[0037] In the specific use process of the present invention, the processing process is further described by taking the processing of the pipe structure as an example. 1. Feeding: The raw materials of the pipe structure are transported by the feeding mechanism through the direct vibration feeding method; as shown in the attached Figure 4 As shown;

[0038] 2. Loading; Figure 5 As shown; the second servo slide 14 controls the manipulator 15 to clamp the material from the material channel, and through the control of the servo mechanism, the material is sent to the hydraulic chuck 11, and the workpiece is clamped by the hydraulic chuck 11; at this time, the hydraulic chuck 11 is at position C, as shown in the attached Figure 2 As shown;

[0039] 3. Drilling; the hydraulic chuck 11 moves to a position corresponding to the first spindle box 2 through the first servo slide 5, as shown in the attached Figure 2 Position B shown in FIG. 1 ; the first spindle box 2 is a drilling axis for drilling the workpiece material;

[0040] 4. The hydraulic chuck 11 is connected to the second spindle box 3 for material docking. At this time, the hydraulic chuck 11 moves to a position corresponding to the second spindle box 3, as shown in the attached figure. Figure 2 and inserted into the workpiece hole through the inner support collet 16 on the second spindle box 3, and the workpiece is supported and clamped from the inner hole, while the hydraulic chuck 11 releases the workpiece;

[0041] 5. Turning one side of the workpiece; after receiving the material, the second spindle box 3 moves to the position of the fixed tool holder 12 through the X axis, and the hydraulic chuck 11 returns to the material receiving position for the next loading operation; the second spindle box 3 cooperates with the tool on the fixed tool holder 12 by rotating to realize cutting processing on one side of the workpiece;

[0042] 6. The second spindle box 3 and the third spindle box 4 workpiece are butted; as shown in the attached Figure 6 As shown, the second spindle box 3 and the third spindle box 4 are moved along the X-axis direction until the axes are collinear, and the workpieces are docked; the third spindle box 4 clamps the processed side of the workpiece through the outer clamp 17 for docking;

[0043] 7. Turn the other side of the workpiece; Figure 7 As shown, the third spindle box 4 moves the workpiece to the position of the fixed tool holder 12, and realizes cutting processing on the other side of the workpiece by rotating and cooperating with the tool on the fixed tool holder 12; at the same time, the second spindle box 3 returns to the hydraulic chuck 11 for the next workpiece docking;

[0044] 8. Material removal: After the material of the second spindle box 4 is processed, the outer clamping collet 17 is automatically released to perform the material removal operation and carry out the next workpiece docking.

[0045] By carrying out the above working procedures, the present invention can automatically realize the entire processing process of the workpiece. During the processing, a workpiece does not need to be repeatedly clamped manually during the drilling and turning of both sides, and all are automatically performed by the machine tool. Compared with ordinary CNC machine tools, the efficiency is greatly improved. In addition, through the design of the hydraulic chuck 11 on the first servo slide 5, the transfer of the workpiece between different workstations can be realized; at the same time, the effective utilization rate of each spindle box can be guaranteed. For example, the drilling of the first spindle box 2, the turning of one side of the second spindle box 3, and the cutting of the other side of the second spindle box 4 can be carried out simultaneously, which effectively improves the utilization rate of each component of the machine tool, can greatly improve the processing efficiency of the workpiece, and has a good effect on large-scale products.

[0046] The present invention can realize automatic one-time processing of workpieces by designing three spindle boxes and hydraulic chucks, and the matching designs of the feeding mechanism, the fixed tool holder and other components; at the same time, the components are compact in structure and have excellent overall performance.

[0047] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A dual-channel three-spindle box CNC machine tool, comprising a base (1), characterized in that: The base (1) is provided with three mutually parallel first spindle boxes (2), second spindle boxes (3) and third spindle boxes (4) distributed in two rows. The first spindle box (2) is non-sliding, while the second spindle box (3) and the third spindle box (4) are slidable along a plane perpendicular to the spindle axis. The first spindle box (2) and the second spindle box (3) are arranged in the same row; the second spindle box (3) and the third spindle box (4) can slide until their axes are in line with each other; the base (1) is provided with a first servo slide (5) located in the middle of the first spindle box (2), the second spindle box (3) and the third spindle box (4); the base (1) is provided with a loading mechanism located on one side of the first spindle box (2); The base (1) is provided with a second slide saddle (6) and a second slide table (7); the second spindle box (3) is assembled with the second slide saddle (6) and the second slide table (7) through a lead screw and a linear rail to realize the movement of the X / Z axis coordinates of the second spindle box (3); the base (1) is provided with a third slide saddle (8) and a third slide table (9); the third spindle box (4) is assembled with the third slide saddle (8) and the third slide table (9) through a lead screw and a linear rail to realize the movement of the X / Z axis coordinates of the third spindle box (4); The second spindle box (3) is provided with an inner support collet (16) for supporting and clamping the workpiece from the inner hole of the workpiece; The third spindle box (4) is provided with an outer clamp (17) for supporting and clamping the workpiece from the outer edge of the workpiece; A support frame (10) is fixed on the base (1), a first servo slide (5) arranged along the sliding direction of the second spindle box (3) is installed on the support frame (10), and a hydraulic chuck (11) is installed on the first servo slide (5); a fixed tool holder (12) is provided at one end of the support frame (10) away from the feeding mechanism; The feeding mechanism comprises a bracket (13) fixed to the side wall of the base (1); a second servo slide (14) perpendicular to the first servo slide (5) is mounted on the bracket (13); a manipulator (15) is mounted on the second servo slide (14); the manipulator (15) is controlled by a servo mechanism; and is used to adjust the angle; the manipulator (15) is controlled by the second servo slide (14) to clamp the material from the material channel, and the material is fed into the hydraulic chuck (11) through the control of the servo mechanism, and the workpiece is clamped by the hydraulic chuck (11); The hydraulic chuck (11) is moved to a position corresponding to the first spindle box (2) through the first servo slide 5. The first spindle box (2) is a drilling axis for performing a drilling operation on a workpiece material. The hydraulic chuck (11) and the second spindle box (3) are connected to the material. At this time, the hydraulic chuck (11) moves to a position corresponding to the second spindle box (3), and is inserted into the workpiece hole through the inner support collet (16) on the second spindle box (3), so as to support and clamp the workpiece from the inner hole, and at the same time, the hydraulic chuck (11) releases the workpiece; After the second spindle box (3) receives the material, it moves to the position of the fixed tool holder (12) via the X-axis, and the hydraulic chuck (11) returns to the material receiving position to perform the next material loading operation; the second spindle box (3) cooperates with the tool on the fixed tool holder (12) by rotating to achieve cutting processing on one side of the workpiece; The second spindle box (3) and the third spindle box (4) are butt-jointed with each other; the second spindle box (3) and the third spindle box (4) are moved along the X-axis direction until their axes are collinear, and the workpieces are butt-jointed; the third spindle box (4) clamps the machined side of the workpiece with an outer clamp (17) for butt-jointing; The third spindle box (4) moves the workpiece to the position of the fixed tool holder (12), and realizes cutting processing on the other side of the workpiece by rotating and cooperating with the tool on the fixed tool holder (12); at the same time, the second spindle box (3) returns to the hydraulic chuck (11) for the next workpiece docking; after the material of the third spindle box (4) is processed, the outer clamp (17) is automatically released to perform the material stripping operation, and the next workpiece docking is performed.

2. The dual-channel three-spindle box CNC machine tool according to claim 1 is characterized in that: The second servo slide (14) can move along the Y / Z axis coordinates.

3. The dual-channel three-spindle box CNC machine tool according to claim 1 is characterized in that: The hydraulic chuck (11) can cooperate with the feeding mechanism, the first spindle box (2) and the second spindle box (3) respectively.

4. The dual-channel three-spindle box CNC machine tool according to any one of claims 1 to 3, characterized in that: The first spindle box (2), the second spindle box (3) and the third spindle box (4) are all equipped with servo power heads.

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