Machining center

Abstract

The utility model provides a machining center which comprises a base, a workbench and a stand column, the base is provided with a first set of sliding rail installation parts and a second set of sliding rail installation parts, the first set of sliding rail installation parts and the second set of sliding rail installation parts are arranged at intervals, and the extending directions of the first set of sliding rail installation parts and the second set of sliding rail installation parts are parallel. The top surface of the first group of sliding rail mounting parts is parallel to the top surface of the second group of sliding rail mounting parts, the upright post is arranged on the first group of sliding rail mounting parts in a sliding manner, and the worktable is arranged on the second group of sliding rail mounting parts in a sliding manner. According to the machining center provided by the technical scheme, the main shaft and the workpiece are respectively driven by the two driving shafts to move oppositely, so that the moving speed is increased, and the machining efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment, in particular to a processing center. Background Art

[0002] With the continuous development of modern science and technology, machine tools are developing towards high-efficiency processing. In general, each axis of existing machine tools is single-axis movement, and the speed is inevitably limited.

[0003] For example, in the patent with publication number CN102000981A, it is disclosed that two left and right columns 1 are respectively on both sides of the foundation, and each side column 1 is provided with a double row of guide rails, the lower end of the column 1 is fixed on the foundation, and the upper end is connected to the two columns 1 into a gantry structure by a connecting beam 6; the moving beam 5 is equipped with an X-axis slide 7, and the X-axis slide 7 is equipped with a driving mechanism; the X-axis slide 7 is equipped with a slide 8 or a main spindle 9; the boring machine spindle box 4 is installed on a column 1, and the boring machine spindle box 4 is equipped with a square slide 3 and a boring spindle 2, the square slide 3 moves in the spindle box 4 in the W-axis direction, and the boring spindle 2 is installed in the square slide 3 to move in the V-axis direction; the rotary table consists of a rotary table 10, a slide 11 and a bed 12.

[0004] In the above patent, although the spindle 9 can move along the X-axis, Y-axis and Z-axis through the X-axis slide 7, the movable beam 5 and the square slide 3, if you want to adjust the position between the workpiece and the spindle along the X-axis direction, you can only move the spindle through the single drive shaft of the X-axis slide 7. The single-axis movement speed is inevitably limited, resulting in limited processing efficiency of the machine tool.

[0005] Therefore, adjusting the position between the workpiece and the spindle in a certain axial direction and limiting the machining efficiency of the machine tool by adjusting the spindle position only through a single drive axis are issues that need to be addressed urgently. Utility Model Content

[0006] The utility model provides a machining center, which respectively drives a main shaft and a workpiece to move toward each other through two driving shafts, thereby increasing the moving speed and further improving the machining efficiency.

[0007] The utility model provides a machining center, including a base, a workbench and a column. The base is provided with a first group of slide rail mounting parts and a second group of slide rail mounting parts. The first group of slide rail mounting parts and the second group of slide rail mounting parts are arranged at intervals and their extension directions are parallel to each other. The top surfaces of the first group of slide rail mounting parts and the top surfaces of the second group of slide rail mounting parts are parallel to each other. The column is slidably arranged on the first group of slide rail mounting parts, and the workbench is slidably arranged on the second group of slide rail mounting parts.

[0008] In some feasible embodiments, the column slides relative to the base via the first set of slide rail mounting portions, the first set of slide rail mounting portions including a first sub-slide rail and a second sub-slide rail of different heights, the first sub-slide rail being located at a periphery of the base and having a height higher than that of the second sub-slide rail, and the second sub-slide rail being closer to the second set of slide rail mounting portions than the first sub-slide rail;

[0009] It also includes a third group of slide rail mounting parts, which are separately arranged from the first group of slide rail mounting parts and the second group of slide rail mounting parts. The third group of slide rail mounting parts are vertically arranged between the second group of rail mounting parts and the base, or the third group of slide rail mounting parts are vertically arranged between the second group of rail mounting parts and the workbench, and the extension direction of the third group of slide rail mounting parts is perpendicular to the extension direction of the second group of rail mounting parts.

[0010] In some feasible embodiments, the column slides relative to the base through the first set of slide rail mounting parts, and the length of the second set of slide rail mounting parts along the extension direction is longer than the length of the first set of slide rail mounting parts along the extension direction; and / or

[0011] The top surface height of the first group of slide rail mounting parts is higher than the top surface height of the second group of slide rail mounting parts.

[0012] In some feasible embodiments, the workbench slides back and forth along the first direction relative to the base through the second set of slide rail mounting parts, and the column slides back and forth along the second direction relative to the base through the first set of slide rail mounting parts, and the first direction and the second direction are parallel to each other; a first driving mechanism is provided between the workbench and the base, and the first driving mechanism is used to drive the workbench to slide relative to the base, and a second driving mechanism is provided between the column and the workbench, and the second driving mechanism is used to drive the column to slide relative to the base.

[0013] In some feasible embodiments, the machining center further comprises a saddle, the column is provided with a penetrating channel in a direction perpendicular to the front end surface of the column, the saddle is arranged in the channel and the saddle can slide vertically relative to the column, a third drive mechanism is provided between the column and the saddle, and the third drive mechanism is transmission-connected to the saddle; and / or

[0014] It also includes a rotating mechanism connected to the workbench, the rotating axis of the rotating mechanism is perpendicular to the upper plane of the base, and the rotating mechanism is vertically arranged between the workbench and the second set of slide rail mounting parts.

[0015] In some feasible embodiments, a sliding member is provided on the saddle, and two sliding fitting members extending vertically are provided on the front end surface of the column, and the two sliding fitting members are respectively located on both sides of the channel; and / or

[0016] The saddle includes a body and convex parts protruding from both sides of the body. A sliding part is provided on the back of the convex part. The front end surface of the column is provided with two sliding matching parts extending vertically. The sliding part slidably matches with the sliding matching parts.

[0017] In some feasible embodiments, the cross-sectional dimension of the bottom of the column in the horizontal direction is larger than the cross-sectional dimension of the top of the column; and / or

[0018] The front end face of the column is straight in the vertical direction, and the rear end face of the column includes a first inclined surface located above and a second inclined surface located below the first inclined surface. The angle between the first inclined surface and the front end face of the column is smaller than the angle between the second inclined surface and the front end face of the column.

[0019] In some feasible embodiments, the machining center further includes a spindle box, which is horizontally slidably arranged on a saddle, and a fourth drive mechanism is provided between the spindle box and the saddle, and the fourth drive mechanism is transmission-connected to the spindle box.

[0020] In some feasible embodiments, an open groove is provided on the saddle, the spindle box is slidably arranged in the open groove, and at least three wall surfaces on the outer periphery of the saddle are slidably connected to the groove wall of the open groove.

[0021] In some feasible embodiments, the machining center also includes a rotating mechanism, a spindle box and a cross slide, the spindle box is slidably arranged on the column in the vertical direction, a spindle is arranged in the spindle box, and the spindle is slidably arranged in the spindle box along the direction perpendicular to the front end face of the column, the rotating mechanism is slidably arranged on the base through the cross slide, and the cross slide includes a first sliding part located at a high position and a second sliding part located at a low position, the worktable, the rotating mechanism, the first sliding part, the second sliding part and the base are arranged in sequence from top to bottom, the worktable can slide in a direction parallel to the extension and retraction direction of the spindle through the first sliding part, and the worktable can slide in a direction parallel to the movement direction of the column through the second sliding part.

[0022] The above-mentioned machining center is provided with a first group of slide rail mounting parts and a second group of slide rail mounting parts on the base, the first group of slide rail mounting parts and the second group of slide rail mounting parts are spaced apart and their extension directions are parallel to each other, the top surface of the first group of slide rail mounting parts and the top surface of the second group of slide rail mounting parts are parallel to each other, the column is slidably set on the first group of slide rail mounting parts, and the worktable is slidably set on the second group of slide rail mounting parts, so that the column and the worktable can move simultaneously in the same straight line direction in the direction of approaching or moving away from each other, so that when the spindle and the workpiece need to approach or move away from each other on the straight line, the column and the worktable are controlled to move simultaneously in the direction of approaching or moving away from each other on the straight line, thereby reducing the time spent on movement and improving machining efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without inventive efforts.

[0024] Figure 1 A schematic diagram of a turning and boring composite machining center provided by the prior art.

[0025] Figure 2 A schematic diagram of a base provided in one embodiment of the present utility model.

[0026] Figure 3 A schematic diagram of a machining center provided in one embodiment of the present invention.

[0027] Figure 4 This is a right side view of a machining center provided by one embodiment of the present utility model.

[0028] Figure 5 A schematic diagram of a saddle in a machining center provided in one embodiment of the utility model.

[0029] Figure 6 A schematic diagram of a base and a cross slide in a machining center provided in one embodiment of the present utility model.

[0030] Component Symbol Description

[0031] 100, base; 101, first set of slide rail mounting portion; 1011, first sub-slide rail; 1012, second sub-slide rail; 102, second set of slide rail mounting portion; 103, third set of slide rail mounting portion; 1031, third slide rail; 104, front end portion; 105, rear end portion; 200, workbench; 300, column; 301, channel; 302, sliding fitting; 303, first inclined surface; 304, second inclined surface; 305, first sliding fitting part; 306, second sliding fitting part; 307, first nut seat; 400, saddle; 401, sliding member; 402, opening groove; 403, second nut seat; 404, mounting seat; 410, main body; 420, protrusion; 500, rotating mechanism; 510, fixing part; 520, rotating part; 600, spindle box; 700, cross slide; 710, first sliding part; 720, second sliding part; x, horizontal; y, longitudinal; z, vertical.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0035] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] To provide a clearer and more accurate understanding of the present invention, the following detailed description is provided with reference to the accompanying drawings. The accompanying drawings illustrate exemplary embodiments of the present invention, with like reference numerals representing like elements. It should be understood that the scales shown in the accompanying drawings are not those of the actual implementation of the present invention. These scales are for illustrative purposes only and are not drawn to scale.

[0037] Please see Figure 2 The present invention provides a machining center including a base 100, a worktable 200, and a column 300. The base 100 is provided with a first set of slide rail mounting portions 101 and a second set of slide rail mounting portions 102. It is understood that the first set of slide rail mounting portions 101 is used to mount a first set of slide rails, which includes two slide rails. The column 300 slides relative to the base via the two first set of slide rails and corresponding sliders. The second set of slide rail mounting portions 102 is used to mount a second set of slide rails, which includes two slide rails with top surfaces that maintain a consistent height. The worktable 200 slides relative to the base via the two second set of slide rails and corresponding sliders.

[0038] In this embodiment, the base 100 includes a front end portion 104 and a rear end portion 105. The length of the front end portion 104 along the horizontal direction x is greater than the length of the rear end portion 105 along the horizontal direction x. The front end portion 104 is used to install the second group of slide rail mounting portions 102, and the rear end portion 105 is used to install the first group of slide rail mounting portions 101. It can be understood that the front end portion 104, the rear end portion 105, the first group of slide rail mounting portions 101 and the second group of slide rail mounting portions 102 are all integrally formed, which facilitates the manufacture of the base 100 and improves production capacity.

[0039] The first set of slide rail mounting parts 101 and the second set of slide rail mounting parts 102 are spaced apart and extend in parallel directions. The top surface of the first set of slide rail mounting parts 101 and the top surface of the second set of slide rail mounting parts 102 are parallel to each other. In this embodiment, the top surface of the first set of slide rail mounting parts 101 and the top surface of the second set of slide rail mounting parts 102 are both parallel to the top surface of the base 100. The workbench 200 is slidably mounted on the second set of slide rail mounting parts 102, and the sliding direction of the workbench 200 is parallel to the sliding direction of the column 300. This ensures that after the column 300 and the workbench 200 are installed, the bottom surfaces of the column 300 and the workbench 200 are parallel to the top surface of the base 100, preventing the column 300 and the workbench 200 from tilting relative to the top surface of the base 100 and ensuring the stability of the column 300 and the workbench 200 sliding relative to the base 100.

[0040] The column 300 is slidably mounted on the first set of slide rail mounting parts 101. The first set of slide rail mounting parts 101 includes a first sub-slide rail 1011 and a second sub-slide rail 1012 of different heights. The first sub-slide rail 1011 is located at the periphery of the base 100 and the height of the first sub-slide rail 1011 is higher than the height of the second sub-slide rail 1012. The second sub-slide rail 1012 is closer to the second set of slide rail mounting parts 102 than the first sub-slide rail 1011. It can be understood that the first set of slide rail mounting parts 101 for mounting the column 300 have a high and low step structure, so as to provide support between the column 300 and the workbench 200 in the horizontal direction, reduce the support force of the first set of slide rail mounting parts 101 in the direction perpendicular to the front end surface of the column 300, and improve processing accuracy.

[0041] The column 300 slides relative to the base 100 through the first set of slide rail mounting parts 101, and the length of the second set of slide rail mounting parts 102 is longer than the length of the first set of slide rail mounting parts 101. The column 300 is large in size and mass, and the saddle 400, the spindle box 600 and the spindle are installed on the column 300, so the weight of the column 300 is greater than the weight of the workbench 200, resulting in that under the drive of the mutual power motor, the acceleration of the movement of the column 300 will be less than the acceleration of the movement of the workbench 200, so the workbench 200 moves first, and the travel of the workbench 200 along the X-axis is greater than the travel of the column 300 along the X-axis. When the spindle and the workpiece need to approach each other along the X-axis, moving the workbench 200 and the column 300 at the same time can make the spindle and the workpiece move toward each other at the same time, reducing the time spent on movement, increasing the movement acceleration and thus improving the movement efficiency of the machining center along the X-axis. And / or the top surface height of the first group of slide rail mounting parts 101 is higher than the top surface height of the second group of slide rail mounting parts 102. Since the height of the spindle box 600 will be lower than the height of the workpiece on the workbench 200, the top surface height of the first group of slide rail mounting parts 101 of the mounting column 300 can be raised to facilitate the increase of the height of the spindle box 600, making it more convenient for the spindle to process the workpiece mounted on the workbench 200.

[0042] In this embodiment, the machining center further includes a third set of slide rail mounting parts 103, which are separately arranged from the first set of slide rail mounting parts 101 and the second set of slide rail mounting parts 102. It can be understood that the third set of slide rail mounting parts 103 includes a third set of slide rails, which includes two third slide rails 1031 spaced apart and arranged in parallel. The bottom of the third slide rail 1031 is slidably connected to the second set of slide rail mounting parts 102 through an adapter and a slider, and the top of the third slide rail 1031 is directly or indirectly connected to the workbench 200 through a slider and another adapter. The third set of slide rail mounting parts 103 is vertically arranged between the second set of slide rail mounting parts 102 and the base 100 or the third set of slide rail mounting parts 103 is vertically arranged between the second set of slide rail mounting parts 102 and the workbench 200, and the extension direction of the third set of slide rail mounting parts 103 is perpendicular to the extension direction of the second set of slide rail mounting parts 102. The third group of slide rail mounting parts 103 cooperates with the second group of slide rail mounting parts 102, so that the worktable 200 can move along the X-axis and Y-axis directions on the base 100, and cooperates with the movement of the column 300 relative to the base 100 along the X-axis direction and the movement of the spindle box 600 relative to the column 300 along the Y-axis direction, so that when the spindle box 600 moves relative to the worktable 200 along the X-axis direction and the Y-axis direction, both the spindle box 600 and the worktable 200 can move, thereby accelerating the movement speed of the spindle box 600 and the worktable 200 along the X-axis direction and the Y-axis direction for a preset distance, reducing the movement time between the spindle box 600 and the worktable 200 for a preset distance, thereby improving the machining efficiency of the machining center.

[0043] Please see Figure 3 and 4The workbench 200 is used to mount a workpiece. The column 300 is used to carry the saddle 400 and the spindle box 600. The bottom of the column 300 is provided with a first sliding fitting portion 305 and a second sliding fitting portion 306. The first sliding fitting portion 305 slides in cooperation with the first sub-slide rail 1011, and the second sliding fitting portion 306 slides in cooperation with the second sub-slide rail 1012. The workbench 200 slides back and forth in a first direction relative to the base 100 via the second set of slide rail mounting portions 102, and the column 300 slides back and forth in a second direction relative to the base 100 via the first set of slide rail mounting portions 101. The first direction and the second direction are parallel to each other. In this embodiment, the first direction and the second direction are both parallel to the X-axis. A first driving mechanism is provided between the workbench 200 and the base 100, and the first driving mechanism is used to drive the workbench 200 to slide relative to the base 100. A second driving mechanism is provided between the column 300 and the workbench 200, and the second driving mechanism is used to drive the column 300 to slide relative to the base 100. It can be understood that the workbench 200 and the column 300 both move along the X-axis. In this way, when the spindle and the workpiece need to move toward or away from each other along the X-axis, the workbench 200 can be driven to move by the first driving mechanism, and the column 300 can be driven to move by the second driving mechanism, thereby speeding up the movement speed of the spindle and the workpiece along the X-axis, reducing the time spent on moving into position, and improving processing efficiency.

[0044] Please see Figure 4The cross-sectional dimension of the bottom of the column 300 in the horizontal direction is larger than the cross-sectional dimension of the top of the column 300, so that the center of gravity of the column 300 can be located in the lower middle part of the column 300 along the vertical direction z, lowering the center of gravity of the column 300, making the column 300 more stable when moving relative to the base 100; and / or the front end surface of the column 300 is straight along the vertical direction z, so that it is easier to install the slide rail along the vertical direction z, and it is more convenient for the slide saddle 400 to move relative to the column 300 along the vertical direction z through the slide rail and the slider. The rear end surface of the column 300 includes a first inclined surface 303 located above and a second inclined surface 304 located below the first inclined surface 303. The inclination angle of the first inclined surface 303 is greater than the inclination angle of the second inclined surface 304. The angle between the first inclined surface 303 and the front end surface of the column 300 is smaller than the angle between the second inclined surface 304 and the front end surface of the column 300. The connection between the first inclined surface 303 and the second inclined surface 304 is located in the middle and lower part of the column 300 along the vertical direction z, thereby lowering the center of gravity of the column 300, and the center of gravity of the column 300 is located inside the column 300 and close to the front end surface of the column 300. It can be understood that the first nut seat 307 at the bottom of the column 300 is also close to the front end surface of the column 300 along the longitudinal direction y. This ensures that the second drive mechanism can be located in the same vertical plane as the center of gravity of the column 300, thereby ensuring the stability of the column 300 when moving along the base 100. It can be understood that the second drive mechanism includes a second screw, a second nut and a second drive motor. The bottom of the column 300 has a flat surface in the middle along the longitudinal direction y and high and low stepped surfaces on the front and rear sides of the flat surface along the longitudinal direction y. The left and right walls of the column 300 are both planes, and the two inner walls of the column 300 in the channel 301 are also planes, so that the directional saddle 400 moves along the vertical direction z inside the column 300. The top surface of the column 300 is also plane, and the rear end face of the column 300 includes two sections of inclination, which can lower the center of gravity of the column 300 and reduce the volume of the column 300, thereby reducing the weight of the column 300 and making the machining center lighter.

[0045] Please see Figure 3 and 5The machining center also includes a saddle 400, and the column 300 is provided with a penetrating channel 301 along the front end face direction of the vertical column 300. The saddle 400 is arranged in the channel 301 and the saddle 400 slides relative to the column 300 along the vertical direction z. A third driving mechanism is provided between the column 300 and the saddle 400, and the third driving mechanism is transmission-connected to the saddle 400. The saddle 400 is provided with a second nut seat 403 along the vertical direction z. The third driving mechanism includes a third screw rod, a third nut and a third motor. The third nut is arranged along the vertical direction z and fixedly installed in the second nut seat 403. The third driving mechanism is fixedly connected to the column 300 and can be located in the channel 301. The third driving mechanism is installed on one side of the column 300 close to the second nut seat 403. The transmission cooperation between the third driving mechanism and the second nut seat 403 has driven the saddle 400, the spindle box 600 and the spindle to rise or fall along the vertical direction z in the channel 301. In this embodiment, the front end of the saddle 400 is slidably connected to the front end surface of the column 300. For example, the front end of the saddle 400 is slidably connected to the front end surface of the column 300 through a slide rail slider assembly; by setting the saddle 400 inside the channel 301 of the column 300, the center of gravity of the saddle 400 can be adjusted to be close to the center of mass of the column 300, which can improve the stability of the movement of the column 300 and also improve the stability of the saddle 400 when moving relative to the column 300. And / or the machining center also includes a rotating mechanism 500 connected to the workbench 200, the rotating axis of the rotating mechanism 500 is perpendicular to the upper plane of the base 100, and the rotating mechanism 500 is arranged between the workbench 200 and the second group of slide rail mounting parts 102 along the vertical direction z, the rotating mechanism 500 includes a fixed part 510 at the bottom and a rotating part 520 at the top, the rotating part 520 is fixedly connected to the workbench 200, and can drive the workbench 200 to rotate along the direction perpendicular to the base surface, the fixed part 510 is slidably arranged above the second group of slide rail mounting parts 102, specifically, the fixed part 510 is slidably arranged above the third group of slide rail mounting parts 103, and the third group of slide rail mounting parts 103 is slidably arranged above the second group of slide rail mounting parts 102. The rotating mechanism 500 can drive the workbench 200 to rotate. The rotating axis of the rotating mechanism 500 is perpendicular to the direction of the surface of the base 100. In this way, the machining center can add a rotating axis on the basis of three straight lines, which can increase the processing steps. The workpiece can be processed in other steps without disassembling the workpiece or replacing other machine tools, thereby improving the processing efficiency.

[0046] Please see Figure 5The saddle 400 is provided with a sliding member 401, and the front end surface of the column 300 is provided with two sliding fittings 302 extending along the vertical direction z. The two sliding fittings 302 are respectively located on both sides of the channel 301. It can be understood that the sliding member 401 can be a slider and the sliding fitting 302 can be a slide rail; and / or the saddle 400 includes a main body 410 and a protrusion 420 protruding from both sides of the main body 410. In this embodiment, the cross-sectional dimension of the front end of the main body 410 along the vertical direction z is larger than the cross-sectional dimension of the rear end of the main body 410 along the vertical direction z. This can make the center of gravity of the saddle 400 close to the front end of the saddle 400. That is to say, when the saddle 400 is assembled with the column 300, the center of gravity of the saddle 400 is closer to the front end surface of the column 300, and the center of gravity of the saddle 400 along the vertical direction z can also correspond to the second driving mechanism, which facilitates the second driving mechanism to drive the column 300, the saddle 400 and the spindle box 600 to slide relative to the base 100. It can be understood that the front end of the body 410 is the end closest to the front face of the column 300, while the rear end of the body 410 is the end further away from the front face of the column 300. A second nut seat 403 is provided on one side of the body 410, located near the protrusion 420. A sliding member 401 is provided on the back of the protrusion 420. The front face of the column 300 is provided with two sliding mating members 302 extending in the vertical direction z, with the sliding members 401 slidably engaging with the sliding mating members 302. By locating the sliding mating members 302 at the front face of the column 300, the height of the column 300 is utilized, maximizing the length of the sliding mating members 302 mounted on the column 300 and maximizing their travel, thereby expanding the machining area of the machining center.

[0047] Please see Figure 3 The machining center also includes a spindle box 600, which is slidably arranged on the slide saddle 400 along the horizontal direction (that is, the direction of the front end face of the vertical column 300, in other words, the longitudinal direction y). A fourth drive mechanism is provided between the spindle box 600 and the slide saddle 400, and the fourth drive mechanism is transmission-connected to the spindle box 600. The fourth drive mechanism is provided on the slide saddle 400, and a third nut seat is provided at the bottom of the spindle box 600, and the fourth drive mechanism is transmission-coordinated with the third nut seat. This makes the machining center a horizontal machining center. The horizontal spindle box 600 cooperates with the column 300 and the first set of step-shaped slide rail mounting parts 101 on the base 100, which can generate a lateral x support force perpendicular to the front end face of the column 300 when the machining center processes the workpiece. This can improve the rigidity of the machining center and improve the stability of the machining center when processing the workpiece.

[0048] Please see Figure 5, an open groove 402 is provided on the slide saddle 400, and the spindle box 600 is slidably arranged in the open groove 402, and at least three surfaces are connected to the groove wall of the open groove 402, and the slide saddle 400 is located below the open groove 402 and is further provided with a mounting seat 404, and the mounting seat 404 is used to install the fourth driving mechanism, the fourth driving mechanism includes a fourth screw rod, a fourth nut and a fourth motor, and the fourth motor is installed at the front end of the spindle box 600, that is, the fourth motor is installed at one end of the spindle box 600 close to the front end surface of the column 300, so that the center of gravity of the column 300, the slide saddle 400, the spindle box 600 and the fourth driving mechanism corresponds to the second driving mechanism along the vertical z direction, so that the second driving mechanism can drive the column 300, the slide saddle 400, the spindle box 600 and the fourth driving mechanism to slide relative to the base 100, thereby preventing the column 300, the slide saddle 400, the spindle box 600 and the fourth driving mechanism from offsetting along the x-axis when sliding relative to the base 100. The fourth nut is fixedly connected to the third nut seat at the bottom of the spindle box 600. By providing the open slot 402, two sets of parallel slide blocks are provided at the bottom of the spindle box 600 and the bottom wall of the open slot 402, and the two sets of slide blocks are symmetrical relative to the spindle box 600, which can provide stable support for the spindle box 600. A set of slide blocks is provided between the left and right walls of the spindle box 600 and the left and right inner walls of the open slot 402. This ensures that when the spindle box 600 slides relative to the saddle 400, the spindle box 600 can move more stably along the front end face of the vertical column 300 under the guidance of the slide blocks on both sides.

[0049] The above-mentioned machining center is provided with a first group of slide rail mounting parts 101 and a second group of slide rail mounting parts 102 on the base 100, the first group of slide rail mounting parts 101 and the second group of slide rail mounting parts 102 are spaced apart and their extension directions are parallel to each other, the top surface of the first group of slide rail mounting parts 101 and the top surface of the second group of slide rail mounting parts 102 are parallel to each other, the column 300 is slidably set on the first group of slide rail mounting parts 101, and the workbench 200 is slidably set on the second group of slide rail mounting parts 102, and the sliding direction of the workbench 200 is parallel to the sliding direction of the column 300, so that the column 300 and the workbench 200 can move simultaneously in the same straight line direction in the direction of approaching or moving away from each other, so that when the spindle and the workpiece need to approach or move away from each other on the straight line, the column 300 and the workbench 200 are controlled to move simultaneously in the direction of approaching or moving away from each other on the straight line, thereby reducing the time spent on movement and improving processing efficiency.

[0050] In some other embodiments, see Figure 6 , when the workpiece and the spindle need to be along the longitudinal y (that is Figure 6When the spindle moves along the Y-axis, on the one hand, the spindle can be driven to move relative to the saddle 400 along the Y-axis through the spindle box 600, and on the other hand, the workpiece on the workbench 200 can be driven to move relative to the base 100 along the Y-axis through the first sliding part 710, so that the workpiece and the spindle can move closer to or farther away from each other along the Y-axis, thereby accelerating the movement speed of the spindle and the workpiece along the Y-axis, reducing the time required for the spindle and the workpiece to move a preset distance along the Y-axis, and improving the processing efficiency of the machining center.

[0051] Specifically, the machining center also includes a rotating mechanism 500, a spindle box 600 and a cross slide 700. The spindle box 600 is slidably arranged on the column 300 along the vertical direction. A spindle is arranged in the spindle box 600. The spindle is slidably arranged in the spindle box 600 along the direction perpendicular to the front end face of the column 300. The rotating mechanism 500 is slidably arranged on the base 100 through the cross slide 700. The cross slide 700 includes a first sliding part 710 located at a high position and a second sliding part 720 located at a low position. The worktable 200, the rotating mechanism 500, the first sliding part 710, the second sliding part 720 and the base 100 are arranged in sequence from top to bottom. The worktable 200 can slide in a direction parallel to the extension and retraction direction of the spindle through the first sliding part 710, and the worktable 200 can slide in a direction parallel to the moving direction of the column 300 through the second sliding part 720. The first sliding portion 710 includes a sliding rail, a slider, and a moving seat. The second sliding portion 720 also includes a sliding rail, a slider, and a moving seat.

[0052] It can be understood that although the moving directions of the first sliding part 710 in the cross slide 700 and the spindle box 600 are repeated, it is precisely because the first sliding part 710 and the spindle box 600 can both move in the Y-axis direction that the moving speed of the spindle and the workpiece along the Y-axis can be accelerated. In conjunction with the function that the second moving part 720 and the column 300 can both move along the X-axis, the spindle and the workpiece can be moved in a compound manner along the XY plane, thereby improving the moving speed of the spindle and the workpiece in the XY plane and accelerating the processing efficiency of the machining center.

[0053] The moving stroke of the first sliding part 710 along the Y-axis can be longer than the moving stroke of the spindle box 600 along the Y-axis. In this way, when the spindle and the workpiece need to move along the Y-axis, the first sliding part 710 is preferably selected for movement. This can reduce the length of the slide rail of the spindle box 600 moving along the Y-axis, reduce the weight of the spindle box 600 applied to the column 300, and speed up the acceleration of the column 300 moving along the X-axis.

[0054] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

[0055] The above examples are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A machining center, characterized in that: The invention comprises a base (100), a workbench (200) and a column (300); the base (100) is provided with a first group of slide rail mounting parts (101) and a second group of slide rail mounting parts (102); the first group of slide rail mounting parts (101) and the second group of slide rail mounting parts (102) are arranged at intervals and their extension directions are parallel to each other; the top surface of the first group of slide rail mounting parts (101) and the top surface of the second group of slide rail mounting parts (102) are parallel to each other; the column (300) is slidably arranged on the first group of slide rail mounting parts (101); and the workbench (200) is slidably arranged on the second group of slide rail mounting parts (102).

2. The machining center according to claim 1, wherein: The first group of slide rail mounting parts (101) comprises a first sub-slide rail (1011) and a second sub-slide rail (1012) having different heights, the first sub-slide rail (1011) being located at the periphery of the base (100) and the height of the first sub-slide rail (1011) being higher than the height of the second sub-slide rail (1012), and the second sub-slide rail (1012) being closer to the second group of slide rail mounting parts (102) than the first sub-slide rail (1011); The machining center further comprises a third group of slide rail mounting parts (103), the third group of slide rail mounting parts (103) being separately arranged from the first group of slide rail mounting parts (101) and the second group of slide rail mounting parts (102), the third group of slide rail mounting parts (103) being vertically arranged between the second group of slide rail mounting parts (102) and the base (100) or the third group of slide rail mounting parts (103) being vertically arranged between the second group of slide rail mounting parts (102) and the workbench (200), and the extension direction of the third group of slide rail mounting parts (103) being perpendicular to the extension direction of the second group of slide rail mounting parts (102).

3. The machining center according to claim 1, characterized in that The column (300) slides relative to the base (100) via the first set of slide rail mounting parts (101), and the length of the second set of slide rail mounting parts (102) along the extension direction is longer than the length of the first set of slide rail mounting parts (101) along the extension direction; and / or The top surface height of the first group of slide rail mounting parts (101) is higher than the top surface height of the second group of slide rail mounting parts (102).

4. The machining center according to claim 1, characterized in that The workbench (200) slides back and forth relative to the base (100) along a first direction via the second set of slide rail mounting parts (102), and the column (300) slides back and forth relative to the base (100) along a second direction via the first set of slide rail mounting parts (101), wherein the first direction and the second direction are parallel to each other; a first driving mechanism is provided between the workbench (200) and the base (100), and the first driving mechanism is used to drive the workbench (200) to slide relative to the base (100); a second driving mechanism is provided between the column (300) and the workbench (200), and the second driving mechanism is used to drive the column (300) to slide relative to the base (100).

5. The machining center according to any one of claims 1 to 4, characterized in that: The machining center further comprises a saddle (400), the column (300) is provided with a through channel (301) along a direction perpendicular to the front end face of the column (300), the saddle (400) is arranged in the channel (301) and the saddle (400) can slide relative to the column (300) along the vertical direction (z), a third driving mechanism is provided between the column (300) and the saddle (400), and the third driving mechanism is in transmission connection with the saddle (400); and / or It also includes a rotating mechanism (500) connected to the workbench (200), the rotating axis of the rotating mechanism (500) is perpendicular to the upper plane of the base (100), and the rotating mechanism (500) is arranged between the workbench (200) and the second group of slide rail mounting parts (102) along the vertical direction (z).

6. The machining center according to claim 5, characterized in that The sliding saddle (400) is provided with a sliding member (401), and the front end surface of the column (300) is provided with two sliding fitting members (302) extending in the vertical direction (z), and the two sliding fitting members (302) are respectively located on both sides of the channel (301); and / or The sliding saddle (400) includes a main body (410) and convex parts (420) protruding from both sides of the main body (410), a sliding part (401) is provided on the back of the convex part (420), and the front end surface of the column (300) is provided with two sliding matching parts (302) extending along the vertical direction (z), and the sliding part (401) is slidably matched with the sliding matching parts (302).

7. The machining center according to any one of claims 1 to 4, characterized in that: The cross-sectional dimension of the bottom of the column (300) in the horizontal direction is larger than the cross-sectional dimension of the top of the column (300); and / or The front end face of the column (300) is straight along the vertical direction (z), and the rear end face of the column (300) includes a first inclined surface (303) located above and a second inclined surface (304) located below the first inclined surface (303), and the angle between the first inclined surface (303) and the front end face of the column (300) is smaller than the angle between the second inclined surface (304) and the front end face of the column (300).

8. The machining center according to claim 5, characterized in that: The machining center further comprises a spindle box (600), the spindle box (600) being slidably arranged on the slide saddle (400) in a horizontal direction, a fourth driving mechanism being arranged between the spindle box (600) and the slide saddle (400), and the fourth driving mechanism being in transmission connection with the spindle box (600).

9. The machining center according to claim 8, characterized in that The slide saddle (400) is provided with an open groove (402), the spindle box (600) is slidably arranged in the open groove (402), and at least three wall surfaces on the outer periphery of the slide saddle (400) are slidably connected to the groove wall of the open groove (402).

10. The machining center according to claim 1, wherein: The machining center further comprises a rotating mechanism (500), a spindle box (600) and a cross slide (700), wherein the spindle box (600) is slidably arranged on the column (300) in the vertical direction, a spindle is arranged in the spindle box (600), and the spindle is slidably arranged in the spindle box (600) along the direction perpendicular to the front end surface of the column (300), the rotating mechanism (500) is slidably arranged on the base (100) through the cross slide (700), and the cross slide (700) includes a The first sliding part (710) and the second sliding part (720) located at a lower position, the workbench (200), the rotating mechanism (500), the first sliding part (710), the second sliding part (720) and the base (100) are arranged in sequence from top to bottom, the workbench (200) can slide in a direction parallel to the extension and retraction direction of the main shaft through the first sliding part (710), and the workbench (200) can slide in a direction parallel to the moving direction of the column (300) through the second sliding part (720).

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