A compact workpiece processing system

Abstract

The application discloses a small workpiece machining system, comprising: a plurality of small workpiece machining machine tools, a workpiece conveying unit and a tool conveying unit; the small workpiece machining machine tool comprises a B-axis mounting body, a B-axis and a main shaft mounting body, one end of the B-axis mounting body is fixed on a ram on a column, the other end is fixed with the B-axis, the B-axis is fixed with the main shaft mounting body, the main shaft mounting body is fixed with a machining main shaft, so that a working area of the machining main shaft is located below the B-axis and can swing in a horizontal plane perpendicular to the Y-axis direction; a first reserved area is located in front of a guide rail end face, a second reserved area is located on a column side surface, cross slides of adjacent two machining machine tools are located in the same direction, the first reserved area and the second reserved area can be tool libraries / workpiece libraries respectively; the workpiece conveying unit / tool conveying unit is located on one side of the first reserved area and one side of the second reserved area. The system has the advantages of compact structure, small floor space and the like.

Description

Technical Field

[0001] This invention relates to the field of machine tool processing, and more particularly to a small workpiece processing system. Background Technology

[0002] With the development of industrialization, more and more workpieces need to be mass-produced using CNC machine tools. In order to improve the processing efficiency of workpieces, there is an urgent need for a workpiece processing system that can realize rapid batch processing of workpieces. Summary of the Invention

[0003] This invention provides a small workpiece processing system to achieve batch processing of small workpieces.

[0004] The technical means employed in this invention are as follows:

[0005] A small workpiece machining system, comprising:

[0006] Multiple small workpiece processing machine tools, workpiece conveying units, and tool conveying units;

[0007] The small workpiece processing machine tool includes: a base, a column in the Y-axis direction, a slide, a B-axis mounting body, a B-axis, a spindle mounting body, a machining spindle in the C-axis direction, cross slides in the Z and X-axis directions, a workpiece spindle in the A-axis direction, a first reserved area, and a second reserved area.

[0008] The column is mounted on the base and a guide rail is provided on the column. The slide is mounted on the guide rail and moves along the Y-axis. One end of the B-axis mounting body is fixed on the slide, and the other end is fixed to the B-axis. The spindle mounting body is fixed on the B-axis, and the machining spindle is fixed on the spindle mounting body so that the working area of ​​the machining spindle is located below the B-axis and can swing in a horizontal plane perpendicular to the Y-axis.

[0009] The cross slide is located on the end face of the column with the guide rail, and below the machining spindle; the workpiece spindle is mounted on the cross slide.

[0010] The first reserved area is located directly in front of the guide rail end face, and the second reserved area is located on the side of the column and above the cross slide; the cross slides of two adjacent machine tools are located in the same direction, the first reserved area is a workpiece magazine / tool ​​magazine, and the second reserved area is a tool magazine / workpiece magazine;

[0011] The workpiece conveying unit / tool ​​conveying unit is located on one side of the first reserved area, and the tool conveying unit / workpiece conveying unit is located on one side of the second reserved area.

[0012] Furthermore, the extension line of the B-axis axis intersects the extension line of the machining spindle axis at a single point.

[0013] Furthermore, the extension line of the B-axis is located on the nose end face of the machining spindle.

[0014] Furthermore, the B-axis mounting body includes a ram connecting part, a support part, and a B-axis mounting part. The ram connecting part is fixedly connected to the ram. One end of the support part is fixed to the ram connecting part, and the other end is located on the side of the end face of the column with the guide rail and is provided with the B-axis mounting part. The B-axis is provided on the B-axis mounting part.

[0015] The spindle mounting body includes a B-axis connecting part and a spindle mounting part. The B-axis connecting part is fixedly connected to the B-axis, and the machining spindle is fixed on the spindle mounting part such that the working area of ​​the machining spindle is located below the B-axis.

[0016] Furthermore, the included angle between the side of the column opposite to the end face with the guide rail and the side of the column away from the cross slide coincides with the bottom angle of the base.

[0017] Furthermore, the connection width between the support and the slide connecting part is smaller than the width of the slide connecting part, and the support is fixed to one end of the slide connecting part near the cross slide.

[0018] Furthermore, when the first reserved area is a tool magazine, the tool magazine is a sharpening tool magazine, and the sharpening tool magazine includes a tool magazine slide, a turntable horizontal drive device, a turntable, and a tool support assembly;

[0019] The tool magazine slide is fixed on the base. The tool magazine slide is provided with the turntable horizontal drive device and the turntable. The turntable horizontal drive device can drive the turntable to move along the Z-axis on the tool magazine slide. The turntable can rotate in the horizontal plane. Multiple tool support components are evenly distributed on the turntable circumferentially.

[0020] Furthermore, it also includes a second tool magazine and a workpiece spindle mounting table, wherein the workpiece spindle mounting table is disposed on the cross slide, and the workpiece spindle is provided on the workpiece spindle mounting table; the second tool magazine includes a second tool magazine fixing base and a tool support assembly.

[0021] The second tool magazine mounting base is fixed to one end of the workpiece spindle mounting platform away from the workpiece magazine, and multiple tool support assemblies are provided on the second tool magazine mounting base along the Z-axis direction.

[0022] Furthermore, a robotic arm is also provided on the side wall of the column facing the second reserved area.

[0023] Furthermore, when the second reserved area is a tool magazine, the tool magazine is a disc milling cutter magazine, and the disc milling cutter magazine is fixed on the side wall of the column.

[0024] The small workpiece processing system disclosed in this invention comprises multiple small workpiece processing machine tools, a workpiece conveying unit, and a tool conveying unit. The machining spindle area and the working spindle area of ​​the machine tool are both located on the side of the column with the guide rail end face, forming a first reserved area on the side of the column with the guide rail end face, and a second reserved area on the side of the column facing the workpiece spindle. The first reserved area serves as a workpiece / tool ​​magazine, and the second reserved area serves as a tool / workpiece magazine. A workpiece conveying unit / tool ​​conveying unit can be installed on one side of the first reserved area, and a tool conveying unit / workpiece conveying unit can be installed on one side of the second reserved area. The tool / workpiece conveying unit can quickly transport tools / workpieces to each machine tool, enabling mass production of workpieces. Furthermore, this processing system has advantages such as compact structure and small footprint. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a structural diagram of the first embodiment of the small workpiece processing system disclosed in this invention, wherein the processing machine tool is a milling machine;

[0027] Figure 2 This is an isometric view of a milling machine used in the small workpiece machining system disclosed in this invention;

[0028] Figure 3 This is a front view of the milling machine disclosed in this invention;

[0029] Figure 4 This is a left view of the milling machine disclosed in this invention;

[0030] Figure 5 This is the right view disclosed in this invention;

[0031] Figure 6 This is a top view disclosed in this invention;

[0032] Figure 7 This is a front view of the machining spindle disclosed in this invention;

[0033] Figure 8 This is an isometric drawing of the machining spindle disclosed in this invention;

[0034] Figure 9 This is a front view of the workpiece spindle disclosed in this invention;

[0035] Figure 10 This is an isometric view of the workpiece spindle disclosed in this invention;

[0036] Figure 11 This is a side view of the workpiece library disclosed in this invention;

[0037] Figure 12 This is a side view of the tool magazine disclosed in this invention;

[0038] Figure 13 This is a structural diagram of a second embodiment of the small workpiece processing system disclosed in this invention, wherein the processing machine tool is a grinding machine;

[0039] Figure 14 This is an isometric view of a grinding machine used as the processing machine in the small workpiece processing system disclosed in this invention;

[0040] Figure 15 This is a front view of the grinding machine disclosed in this invention;

[0041] Figure 16 This is a left view of the grinding machine disclosed in this invention;

[0042] Figure 17 This is a right view of the grinding machine disclosed in this invention;

[0043] Figure 18 This is a top view of the grinding machine disclosed in this invention;

[0044] Figure 19 This is a front view of the machining spindle of the grinding machine disclosed in this invention;

[0045] Figure 20 This is an isometric view of the machining spindle of the grinding machine disclosed in this invention;

[0046] Figure 21 This is an isometric view of the first tool magazine of the grinding machine disclosed in this invention;

[0047] Figure 22 This is an isometric view of the second tool magazine of the grinding machine disclosed in this invention;

[0048] Figure 23 This is an isometric view of the workpiece spindle mounting table disclosed in this invention. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Example 1

[0051] like Figure 1 The first embodiment of the small workpiece processing system disclosed in this invention is shown, comprising:

[0052] Multiple small workpiece milling machines 01, workpiece conveying unit 02, and tool conveying unit 03;

[0053] like Figures 2 to 8 As shown, the small workpiece milling machine includes: a base 1, a column 2 in the Y-axis direction, a slide 21, a B-axis mounting body 30, a B-axis 32, a spindle mounting body 31, a machining spindle 4 in the C-axis direction, cross slides 5 in the Z-axis and X-axis directions, a workpiece spindle 6 in the A-axis direction, a first reserved area, and a second reserved area.

[0054] The column 2 is mounted on the base 1, and a guide rail 20 is mounted on the column 2. The slide 21 is mounted on the guide rail 20 and moves along the Y-axis. One end of the B-axis mounting body 31 is fixed on the slide 21, and the other end is fixed to the B-axis 32. The spindle mounting body 30 is fixed on the B-axis 32, and the machining spindle 4 is fixed on the spindle mounting body 30 so that the working area of ​​the machining spindle 4 is located below the B-axis 32 and can swing in a horizontal plane perpendicular to the Y-axis.

[0055] The cross slide 5 is located on the end face of the column 2 where the guide rail 20 is provided, and is located below the machining spindle 4; the workpiece spindle 6 is mounted on the cross slide 5;

[0056] The first reserved area is located directly in front of the end face of the column 2 where the guide rail is located, and the second reserved area is located on the side of the column 2 and above the cross slide 5; the cross slides of two adjacent milling machines are located in the same direction. The first reserved area is provided with a workpiece magazine 10, and the second reserved area is provided with a tool magazine. In this embodiment, the tool magazine 11 is a disc milling cutter magazine, which is fixed on the side wall of the column.

[0057] The workpiece conveying unit is located on one side of the first reserved area, and the tool conveying unit is located on one side of the second reserved area.

[0058] Because it has multiple small workpiece milling machines, these machines share a single workpiece transport unit and tool transport unit. Furthermore, in this invention, the B-axis mount, the B-axis itself, and the spindle mount ensure that the machining spindle is located on the side of the column 2 with the guide rail 20. This means the B-axis is closer to the cross slide in the Z-axis direction than the column, and the rotation of the B-axis can drive the machining spindle to swing in a horizontal plane perpendicular to the Y-axis direction. This eliminates interference between the machining spindle and the column when swinging in the horizontal plane. Additionally, since the machining spindle is located on the side of the column with the guide rail, a workpiece magazine can be installed in the direction facing the guide rail end of the column, and a tool magazine can be installed on the side of the column facing the cross slide. This effectively utilizes the entire space and ensures... The machine tool has a compact structure, which improves space utilization. The machining spindle area and the working spindle area of ​​the milling machine are both located on the side of the column with the guide rail end face, so that the side of the column with the guide rail end face forms a first reserved area, and the side of the column facing the workpiece spindle forms a second reserved area. The first reserved area is the workpiece magazine, and the second reserved area is the tool magazine. A workpiece conveying unit is set on one side of the first reserved area, and a tool conveying unit is set on one side of the second reserved area. The tool conveying unit / workpiece conveying unit can quickly transport the tool / workpiece to each machine tool. In this embodiment, the tool conveying unit and the workpiece conveying unit can be a conveying device such as a gantry crane set above the machine tool to realize the batch production of workpieces. Moreover, this processing system has the advantages of compact structure and small footprint.

[0059] Furthermore, the extension line of the B-axis 32 intersects the extension line of the machining spindle 4 at a single point. In this application, the extension line of the machining spindle intersects the extension line of the B-axis at a single point, making the nose of the machining spindle closer to the center of rotation, reducing the swing distance of the machining spindle, thereby reducing the computational load during machining spindle operation and improving machining efficiency. Simultaneously, because the nose of the machining spindle is close to the axis of the B-axis, the error when the B-axis drives the machining spindle is reduced, improving machining accuracy.

[0060] Furthermore, the extension line of the B-axis 32 is located on the nose end face of the machining spindle 4. That is, the rotation center of the machining spindle in the horizontal plane coincides with the axis of the B-axis, which further reduces the computational load of the machining spindle and improves machining efficiency and machining accuracy.

[0061] The machine tool disclosed in this application balances rigidity and avoidance of motion interference. It aims to bring the tool tip as close as possible to the orthogonal point of the five-axis linkage rotation axes, minimizing the computational load of five-axis linkage interpolation. Due to the large load on the Y-axis, frequent small displacement or reciprocating movements require significantly higher costs to maintain dynamic characteristics and accuracy compared to other linear axes (higher performance requirements for control, drive, motor, and transmission). For tool bar stock, since frequent reciprocating movements on the Y-axis are not required, this machine tool structure is suitable for machining tool bar stock. During machining, this machine tool structure primarily uses the X, Z, B, and A axes (which have relatively low loads) to perform five-axis motion interpolation, while the Y-axis mainly participates in a small number of five-axis motion interpolations such as tool feed and retraction. Therefore, this machine tool structure can maximize its advantages and minimize its disadvantages.

[0062] Furthermore, such as Figure 9 and Figure 10 The diagram also includes a workpiece spindle mounting table 60, a first slide table 61, and a first slide table drive device 62. The workpiece spindle mounting table 60 is mounted on the cross slide table 5. The workpiece spindle mounting table 60 is provided with a guide rail. The first slide table 61 is mounted on the guide rail. The first slide table drive device 62 can be a hydraulic cylinder or a lead screw mechanism. The workpiece spindle 6 is mounted on the workpiece spindle mounting table 60. The first slide table 61 and the first slide table drive device 62 are mounted on the workpiece spindle mounting table 60. The first slide table drive device 62 can drive the first slide table 61 to slide along the X-axis on the workpiece spindle mounting table 60. The first slide table can be provided with a center or support frame to ensure that both ends of the workpiece are supported during processing and to improve processing quality.

[0063] Furthermore, it also includes a tool changing device 9, which includes a tool changing slide 90, a tool chuck 91, a tool chuck horizontal drive device 92, and a tool chuck vertical drive device 93.

[0064] The tool changer slide 90 is fixed on one side of the workpiece spindle 6 on the workpiece spindle mounting table 60. The tool changer slide 90 is provided with a guide rail. The tool chuck horizontal drive device 92 can drive the tool chuck 91 to slide along the X-axis on the tool changer slide 90. The tool chuck vertical drive device 92 can drive the tool chuck 91 to move along the Y-axis on the tool changer slide. This tool changing device enables automatic tool changing of the machining spindle. The specific tool changing process is as follows: In this embodiment, the tool magazine is a disc-type tool magazine, which is fixedly connected to the side of the column. The ram drives the machining spindle to move upward to a certain height to avoid interference between the machining spindle and the workpiece spindle. The B-axis drives the machining spindle to rotate in the horizontal plane, so that the axis of the machining spindle is parallel to the Z-axis, and the nose of the machining spindle faces the cross slide. The tool chuck horizontal drive device drives the tool chuck to move along the X-direction (away from the tool magazine) to avoid interference between the machining spindle and the tool magazine. The cross slide adjusts the tool chuck to the position corresponding to the machining spindle position. The ram drives the machining spindle to fall, and after the tool is inserted into the tool chuck, the cross slide moves along the Z-axis away from the machining spindle, separating the tool from the machining spindle. Then, the cross slide drives the tool changing device to move to... The tool magazine accessory features a vertical drive mechanism for the tool chuck, which moves the tool to a height aligned with the tool magazine and inserts it into its designated position under the action of a cross slide. The vertical drive mechanism then moves the tool chuck downwards to separate it from the tool. The tool magazine rotates to align the tool of the tool to be replaced with the corresponding position on the tool chuck. The vertical drive mechanism then moves the tool chuck upwards to hold the tool. The cross slide then drives the tool changing device to move along the Z-axis away from the tool magazine, separating the tool from the magazine. The cross slide then drives the tool changing device to insert the tool into the machining spindle. The vertical drive mechanism then moves the tool chuck downwards to separate it from the tool, thus achieving automatic tool changing. This invention allows the tool changing process to be implemented using only the existing XYZ three-axis coordinate system, without requiring other auxiliary components. It features a simple structure, convenient control, and high tool changing efficiency.

[0065] like Figure 11 The workpiece library shown includes a workpiece library base 100, a chain-type workpiece library support 101, a chain-type workpiece library 102, and a chain-type workpiece library horizontal drive device 103. The workpiece library base is fixed on a base, and a guide rail 104 is provided on one side of the workpiece library base. The chain-type workpiece library support and the chain-type workpiece library horizontal drive device are fixed on the workpiece library base. The chain-type workpiece library horizontal drive device can drive the chain-type workpiece library support to move along the Z-axis direction on the guide rail. The chain-type workpiece library is installed on the chain-type workpiece library support.

[0066] The workpiece magazine is a chain-type magazine, in which workpieces are rotatably mounted. The mounting direction of the workpiece in the magazine is perpendicular to the plane of rotation of the workpiece in the magazine and in the same direction as the workpiece spindle. The workpiece magazine has a drive device in the Z-axis direction, which can drive the workpiece magazine to move in the Z-axis direction, approaching or moving away from the cross slide. When changing a workpiece, the workpiece spindle mounting table with the workpiece moves along the X and Z directions, aligning the machined workpiece with the empty space in the workpiece magazine where the workpiece is placed. Then, the workpiece magazine moves along the Z-axis direction, approaching the workpiece spindle and putting the workpiece into the magazine. Driven by the first slide drive device, the first slide releases the workpiece, causing it to detach from the workpiece spindle. The workpiece magazine rotates, causing the workpiece to be processed to rotate to a position where the workpiece spindle can be fixed. The workpiece spindle cooperates with the first slide to fix the workpiece. The workpiece magazine moves along the Z-axis direction away from the workpiece spindle, completing the workpiece change.

[0067] Furthermore, the B-axis mounting body includes a ram connecting part, a support part, and a B-axis mounting part. The ram connecting part is fixedly connected to the ram. One end of the support part is fixed to the ram connecting part, and the other end is located on the side of the end face of the column with the guide rail and is provided with the B-axis mounting part. The B-axis is provided on the B-axis mounting part.

[0068] The spindle mounting body includes a B-axis connecting part and a spindle mounting part. The B-axis connecting part is fixedly connected to the B-axis, and the machining spindle is fixed on the spindle mounting part such that the working area of ​​the machining spindle is located below the B-axis.

[0069] In this invention, the B-axis mounting body, the B-axis, and the spindle mounting body enable the machining spindle to be located on the end face of the column 2 with the guide rail 20. The rotation of the B-axis can drive the machining spindle to swing in a horizontal plane perpendicular to the Y-axis direction, thereby eliminating interference between the machining spindle and the column when swinging in the horizontal plane. At the same time, since the machining spindle is located on the end face of the column with the guide rail, the end face of the column with the guide rail can be used to set up a first tool magazine and a workpiece magazine. This effectively utilizes the entire space, ensures a compact milling machine structure, and improves space utilization. In addition, it reduces the distance between the axis of the machining spindle and the end face of the guide rail, ensuring the rigidity between the machining spindle and the ram, and improving the dynamic performance of the machine tool.

[0070] Furthermore, the base 1 is rectangular;

[0071] The included angle between the side of the column 2 opposite to the end face with the guide rail 20 and the side of the column 2 away from the cross slide 5 coincides with the bottom angle of the base 1. Positioning the column at one corner of the base allows the space at the front end of the column with the guide rail to be used for the first tool magazine, and the side of the column with the guide rail to be used for the workpiece magazine. This fully utilizes all the space in the base, greatly improving the machine tool's space utilization rate. The overall layout of the machine tool is compact, reducing the floor space required. This allows for the placement of more processing equipment within the same workshop area, increasing production capacity and reducing production costs.

[0072] Furthermore, the connection width between the support part 301 and the slide connecting part 300 is smaller than the width of the slide connecting part 300, and the support part 301 is fixed to the end of the slide connecting part 300 near the cross slide table 5, which can increase the space below the support part, so as to facilitate the setting of the machining spindle and effectively avoid interference between the machining spindle and the column.

[0073] Example 2

[0074] like Figure 13 The following is a second embodiment of the small workpiece processing system disclosed in this invention, comprising:

[0075] Multiple small workpiece processing systems 01, workpiece conveying unit 02, and tool conveying unit 03;

[0076] like Figures 14 to 20 The small workpiece processing system shown includes: a base 1, a column 2 in the Y-axis direction, a slide 20, a B-axis mounting body 30, a B-axis 32, a spindle mounting body 31, a processing spindle 4 in the C-axis direction, cross slides 5 in the Z and X-axis directions, a workpiece spindle 6 in the A-axis direction, a first reserved area, and a second reserved area.

[0077] The column 2 is mounted on the base 1, and a guide rail 20 is mounted on the column 2. The slide 21 is mounted on the guide rail 20 and moves along the Y-axis. One end of the B-axis mounting body 30 is fixed on the slide 21, and the other end is fixed to the B-axis 32. The spindle mounting body 31 is fixed on the B-axis 32, and the machining spindle 4 is fixed on the spindle mounting body 31 so that the working area of ​​the machining spindle is located below the B-axis and can swing in a horizontal plane perpendicular to the Y-axis.

[0078] The cross slide 5 is located on the end face of the column 2 where the guide rail is provided, and is located below the machining spindle 4; the workpiece spindle 6 is mounted on the cross slide 5;

[0079] The first reserved area is located directly in front of the guide rail end face, and the second reserved area is located on the side of the column and above the cross slide; the cross slides of two adjacent machining grinding machines are located in the same direction, the first reserved area is equipped with a tool magazine, and the second reserved area is equipped with a workpiece magazine;

[0080] The tool transport unit is located on one side of the first reserved area, and the workpiece transport unit is located on one side of the second reserved area.

[0081] Because it has multiple small workpiece processing systems, these systems share a single workpiece conveying unit and tool conveying unit. Furthermore, in this invention, the B-axis mounting body, the B-axis itself, and the spindle mounting body ensure that the machining spindle is located on the side of the column 2 with the guide rail 20. This means the B-axis is closer to the cross slide in the Z-axis direction than the column, and the rotation of the B-axis can drive the machining spindle to swing in a horizontal plane perpendicular to the Y-axis direction. This eliminates interference between the machining spindle and the column when swinging in the horizontal plane. Additionally, since the machining spindle is located on the side of the column with the guide rail, a tool magazine can be installed in the direction facing the guide rail end of the column, and a workpiece magazine can be installed on the side of the column facing the cross slide. This effectively utilizes the entire space and ensures... The machine tool has a compact structure and improves space utilization. The machining spindle area and the working spindle area of ​​the grinding machine are both located on the side of the column with the guide rail end face, so that the side of the column with the guide rail end face forms a first reserved area, and the side of the column facing the workpiece spindle forms a second reserved area. The first reserved area is the tool magazine, and the second reserved area is the workpiece magazine. A tool conveying unit is set on one side of the first reserved area, and a workpiece conveying unit is set on one side of the second reserved area. The tool / workpiece can be quickly conveyed to each machining grinding machine through the tool conveying unit / workpiece conveying unit. In this embodiment, the tool conveying unit and the workpiece conveying unit can be a conveying device such as a gantry crane set above the machine tool to realize the batch production of workpieces. Moreover, this machining system has the advantages of compact structure and small footprint.

[0082] Furthermore, the extension line of the B-axis 32 intersects the extension line of the machining spindle 4 at a single point. In this application, the extension line of the machining spindle intersects the extension line of the B-axis at a single point, making the nose of the machining spindle closer to the center of rotation, reducing the swing distance of the machining spindle, thereby reducing the computational load during machining spindle operation and improving machining efficiency. Simultaneously, because the nose of the machining spindle is close to the axis of the B-axis, the error when the B-axis drives the machining spindle is reduced, improving machining accuracy.

[0083] Furthermore, the extension line of the B-axis 32 is located on the nose end face of the machining spindle 4. That is, the rotation center of the machining spindle in the horizontal plane coincides with the axis of the B-axis, which further reduces the computational load of the machining spindle and improves machining efficiency and machining accuracy.

[0084] Furthermore, the base 1 is rectangular;

[0085] The included angle between the side of the column 2 opposite to the end face with the guide rail 20 and the side of the column 2 away from the cross slide 5 coincides with the bottom corner of the base 1. Positioning the column at one corner of the base allows the space at the front end of the column with the guide rail to be used for the first tool magazine, and the side of the column with the guide rail to be used for the workpiece magazine. This fully utilizes all the space in the base, greatly improving the space utilization rate of the machine tool.

[0086] Furthermore, such as Figure 21 As shown, the first tool magazine 8 includes a tool magazine slide 80, a turntable horizontal drive device 81, a turntable 82, and a tool support assembly 83.

[0087] The tool magazine slide 80 is fixed on the base 1. The tool magazine slide 80 is provided with the turntable horizontal drive device 81 and the turntable 82. The turntable horizontal drive device 81 can drive the turntable 82 to move along the Z-axis on the tool magazine slide 80. The turntable 82 can rotate in the horizontal plane. Multiple tool support assemblies 83 are evenly distributed circumferentially on the turntable 82.

[0088] Specifically, the tool magazine slide is fixed on the front base of the end face of the column with guide rails. Guide rails or guide columns are provided on the tool magazine slide along the Z-axis. The turntable 82 includes a turntable 84, a turntable mounting base 85, and a drive motor. The turntable mounting base 85 is installed on the guide rails or guide columns. The turntable horizontal drive device 81 can be a pneumatic cylinder or a lead screw drive structure. The turntable horizontal drive device can drive the turntable mounting base to slide along the Z-axis on the tool magazine slide. The motor and the turntable are installed on the turntable mounting base. The motor can drive the turntable to rotate in the horizontal plane. Multiple tool support assemblies 83 are evenly distributed around the turntable. Tools can be installed on the tool support assemblies 83.

[0089] Automatic tool changing can be achieved by incorporating a first tool magazine. The tool changing process using the first tool magazine in this invention is as follows: The ram drives the machining spindle upward to a position higher than the first tool magazine, and controls the machining spindle to rotate in the horizontal plane so that the nose of the machining spindle faces the first tool magazine. The turntable of the first tool magazine rotates, causing the empty tool position (where there is no tool on the tool support assembly) on the turntable to rotate to the side facing the machining spindle. The turntable horizontal drive device drives the turntable to move closer to the machining spindle, so that the empty tool position is below the machining spindle. The ram drives the machining spindle downward, engaging the tool on the machining spindle. After the support assembly is in place, the rotary table horizontal drive device drives the rotary table to move away from the machining spindle, causing the tool on the machining spindle to separate from the machining spindle and be placed in the first tool magazine. The rotary table then rotates, rotating the tool position of the tool to be replaced to face the machining spindle. The rotary table horizontal drive device then drives the rotary table to move closer to the machining spindle, and the tool to be replaced is inserted into the machining spindle. The ram drives the machining spindle upward, causing the tool to be replaced to separate from the first tool magazine, thus completing the tool change. In this application, because the space of the first tool magazine is relatively large, the first tool magazine is equipped with a tool with a cooling assembly.

[0090] Furthermore, such as Figure 23 As shown, the system also includes a workpiece spindle mounting table 60, which is fixed to the Z-axis slide of the cross slide table 5. The workpiece spindle 4 is mounted on the workpiece spindle mounting table 60. The workpiece spindle mounting table 60 is also equipped with a second slide table 61 and a second slide table driving device 62. The second slide table driving device 62 can drive the second slide table 61 to slide along the X-axis on the workpiece spindle mounting table. Specifically, a guide rail is fixedly mounted on the workpiece spindle mounting table 60, and the second slide table is mounted on the guide rail. The second slide table driving device 62 can be a pneumatic cylinder or a lead screw drive device to drive the second slide table to slide on the workpiece spindle mounting table. The second slide table can be equipped with a center or support frame to ensure that both ends of the workpiece are supported during machining, thereby improving machining accuracy.

[0091] Furthermore, such as Figure 22 As shown, it also includes a second tool magazine 87, which includes a second tool magazine mounting base 88 and a tool support assembly 83;

[0092] The second tool magazine mounting base 88 is fixed to the end of the workpiece spindle mounting table 60 away from the workpiece magazine. Multiple tool support assemblies 83 are provided on the second tool magazine mounting base 88 along the Z-axis. In this invention, by setting up a second tool magazine, the expandability of the machine tool magazine can be further improved, space utilization and machining efficiency can be increased, and the machine tool structure can be simplified. The second tool magazine in this invention allows the tool changing process to be realized only within the existing XYZ three-axis coordinate system, without the need for other auxiliary components. The grinding machine disclosed in this invention performs the following process for changing the second tool magazine: The machining spindle rotates in the horizontal plane so that its axis is parallel to the X-axis and its nose faces the workpiece magazine. The ram drives the machining spindle upward to a certain height, ensuring that the machining spindle and the workpiece spindle do not interfere with each other. The cross slide moves to adjust the position of the second tool magazine so that the empty tool position in the second tool magazine is below the machining spindle. The ram drives the machining spindle downward to insert the tool on the machining spindle into the empty tool position in the second tool magazine. The cross slide drives the second tool magazine to move away from the machining spindle along the X-axis, separating the tool from the machining spindle. The cross slide drives the second tool magazine to move along the Z-axis to adjust the tool to be replaced to a position corresponding to the axis of the machining spindle. Then, the cross slide drives the second tool magazine to move closer to the machining spindle along the X-axis and inserts the tool to be replaced into the machining spindle. The ram drives the machining spindle upward to separate the tool from the tool magazine, thereby achieving automatic tool changing. In this embodiment, since the space of the second tool magazine is limited, tools without cooling components can be installed in the second tool magazine.

[0093] Furthermore, it also includes a grinding wheel dresser 86 fixed on one side of the workpiece spindle mounting table 60. In this embodiment, the grinding wheel dresser is located on the side of the workpiece spindle mounting table 60 near the column, which can conveniently dress the tool (grinding wheel).

[0094] Furthermore, the connection width between the support part 301 and the slide connecting part 300 is smaller than the width of the slide connecting part 300, and the support part 301 is fixed to the end of the slide connecting part 300 near the cross slide table 5, which can increase the space below the support part, so as to facilitate the setting of the machining spindle and effectively avoid interference between the machining spindle and the column.

[0095] Furthermore, it also includes a robotic arm 9, which is fixedly connected to the side of the column 2 facing the workpiece storage. By setting the robotic arm 9, the workpiece can be quickly switched.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A compact workpiece processing system, characterized by, The utility model relates to a kind of small workpiece processing machine tool, workpiece conveying unit and tool conveying unit comprising: The small workpiece processing machine tool includes base, Y-axis direction's column, ram, B-axis mounting body, B-axis, main shaft mounting body, C-axis direction's processing main shaft, X-axis direction's cross slide, A-axis direction's workpiece main shaft, first reserved area and second reserved area; The column is arranged on the base, and a guide rail is arranged on the column, the ram is arranged on the guide rail and moves along the Y-axis direction, one end of the B-axis mounting body is fixed on the ram, and the other end is fixed with the B-axis, the B-axis is fixed with the main shaft mounting body, and the main shaft mounting body is fixed with the processing main shaft so that the working area of the processing main shaft is located below the B-axis and can oscillate in a horizontal plane perpendicular to the Y-axis direction; The cross slide is located on the side of the end face of the column provided with the guide rail and below the processing main shaft;The workpiece main shaft is arranged on the cross slide;The base is rectangular, and the included angle corresponding to the side of the column opposite to the end face provided with the guide rail and the side of the column away from the cross slide coincides with the bottom angle of the base; The first reserved area is located in front of the end face of the guide rail, and the second reserved area is located above the cross slide and the side of the column;The cross slides of two adjacent processing machine tools are located in the same direction, the first reserved area is a workpiece library / tool library, and the second reserved area is a tool library / workpiece library; The workpiece conveying unit / tool conveying unit is located on one side of the first reserved area, and the tool conveying unit / workpiece conveying unit is located on one side of the second reserved area;The workpiece conveying unit is used to convey workpieces into the workpiece library, and the tool conveying unit is used to convey tools into the tool library; When the first reserved area is a tool library, the tool library is a tool sharpening library, and the tool sharpening library includes a tool library slide, a rotary table horizontal drive device, a rotary table and a tool support assembly; The tool library slide is fixed on the base, the rotary table horizontal drive device and the rotary table are arranged on the tool library slide, the rotary table horizontal drive device can drive the rotary table to move along the Z-axis direction on the tool library slide, the rotary table can rotate in a horizontal plane, a plurality of tool support assemblies are uniformly distributed on the rotary table in the circumferential direction, and when the rotary table horizontal drive device drives the rotary table to move along the Z-axis direction to the side of the processing main shaft, the rotary table can automatically replace tools with the processing main shaft. ​ When the second reserved area is a tool magazine, the tool magazine is a disc milling cutter magazine fixed on the side wall of the column, and the first reserved area is a workpiece magazine, the workpiece magazine comprising a workpiece magazine base, a chain type workpiece magazine support, a chain type workpiece magazine and a chain type workpiece magazine horizontal driving device, the workpiece magazine base being fixed on the base, the workpiece magazine base being provided with a guide rail on one side, the chain type workpiece magazine support and the chain type workpiece magazine horizontal driving device being fixed on the base, the chain type workpiece magazine horizontal driving device being capable of driving the chain type workpiece magazine to move along the Z-axis direction on the guide rail, the chain type workpiece magazine being installed on the chain type workpiece magazine support, the installation direction of the workpiece in the workpiece magazine being perpendicular to the rotation plane of the workpiece in the workpiece magazine and being the same as the direction of the workpiece spindle, the chain type workpiece magazine being capable of automatically replacing the workpiece with the workpiece spindle when the chain type workpiece magazine is driven by the chain type workpiece magazine horizontal driving device to move to the side of the workpiece spindle along the Z-axis direction.

2. The compact workpiece processing system of claim 1, wherein, The extension line of the B-axis axis is orthogonal to the extension line of the machining spindle axis at a point.

3. The compact workpiece processing system of claim 2, wherein, The extension line of the B-axis axis is located on the nose end face of the machining spindle.

4. The compact workpiece processing system of claim 1, wherein, The B-axis mounting body comprises a ram connecting portion, a support portion and a B-axis mounting portion, the ram connecting portion is fixedly connected with the ram, one end of the support portion is fixed on the ram connecting portion, the other end is located on the side of the end face of the column provided with the guide rail and is provided with the B-axis mounting portion, and the B-axis is arranged on the B-axis mounting portion. The main shaft mounting body comprises a B-axis connecting portion and a main shaft mounting portion, the B-axis connecting portion is fixedly connected with the B-axis, and the main shaft mounting portion is fixed with the machining spindle so that the working area of the machining spindle is located below the B-axis.

5. The compact workpiece processing system of claim 4, wherein, The connection width of the support portion and the ram connecting portion is smaller than the width of the ram connecting portion, and the support portion is fixed to one end of the ram connecting portion close to the cross slide.

6. The small workpiece machining system according to claim 5, further comprising a second tool magazine and a workpiece spindle mounting table, the workpiece spindle mounting table being arranged on the cross slide, the workpiece spindle mounting table being provided with the workpiece spindle, and the second tool magazine comprising a second tool magazine fixed base and a tool support assembly. The second tool magazine fixed base is fixed on the end of the workpiece spindle mounting table away from the workpiece magazine, and a plurality of tool support assemblies are arranged on the second tool magazine fixed base along the Z-axis direction. The column is further provided with a mechanical hand on the side wall towards the second reserved area.

7. The compact workpiece processing system of claim 6, wherein, ​

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