A mobile device of a horizontal machining center

Abstract

A moving device of horizontal machining center, including mounting seat, which is provided with mounting cavity through both ends, sliding seat, which is slidingly connected to mounting cavity, and one end of sliding seat is provided with spindle connecting seat for connecting spindle in the direction of connecting line of both ends of mounting cavity, linear motor, whose stator is connected to mounting seat, and whose mover is arranged along vertical direction and connected to sliding seat, balance cylinder, which is arranged along vertical direction, connected to the surface of mounting seat far from spindle connecting seat, and whose piston rod is connected to the other end of sliding seat, and controller for electrically connecting linear motor and balance cylinder. Compared with prior art, the moving device of the application has high moving speed block and machining efficiency, and is stable in working condition and safe in use.

Description

Technical Field

[0001] This invention belongs to the field of mechanical processing equipment technology, and specifically relates to a moving device for a horizontal machining center. Background Technology

[0002] With the continuous improvement of processing requirements, there are higher requirements for the rapid traverse speed of machining centers. Increasing the speed of the moving device of the machining center can effectively shorten the processing time and improve production efficiency.

[0003] For existing horizontal machining centers, most vertical movement devices are end-face cantilever fixed and ball screw driven, such as the movement device for machine tools provided in patent announcement number CN217941868U. Figures 1-2 The moving device includes a column 1, a linear module 2 mounted on the column 1, and a spindle box 3. The linear module 2 includes a guide rail 7 parallel to the column 1, a lead screw 8 connected to the spindle box 3, and a motor 9 connected to the lead screw 8. Under working conditions, the motor 9 drives the lead screw 8 to rotate, thereby moving the spindle box 3 along the guide rail 7.

[0004] However, the driving speed of the above-mentioned moving device is insufficient, resulting in slow movement and low production efficiency. Increasing its moving speed can easily lead to structural instability during rapid movement, thus affecting the accuracy of rapid movement. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a moving device for a horizontal machining center.

[0006] To achieve the above objectives, the present invention discloses a moving device for a horizontal machining center, comprising:

[0007] Mounting base, wherein the mounting base is provided with mounting cavities that extend through both ends;

[0008] A slide block is slidably connected to the mounting cavity. In the direction of the line connecting the two ends of the mounting cavity, one end of the slide block is provided with a spindle connecting seat for connecting the spindle.

[0009] A linear motor, wherein the stator of the linear motor is connected to the mounting base; the mover of the linear motor is arranged vertically and connected to the slide.

[0010] A balancing cylinder is arranged vertically and is connected to the surface of the mounting base away from the main shaft connecting base, and its piston rod is connected to the other end of the slide.

[0011] Controllers used for electrical connection with linear motors and balancing cylinders.

[0012] Preferably, the balance cylinder is connected to the middle position of the end face of the mounting base.

[0013] Preferably, the other end of the slide is provided with a connecting platform.

[0014] More preferably, a first slider is provided at the other end of the slide block and near the side wall of the mounting cavity, and a first guide rail is provided on the side wall of the mounting cavity to slide and cooperate with the slider, with the first guide rail facing the other side wall of the mounting cavity.

[0015] More preferably, the balancing cylinder is located between the connecting platform and the side wall of the mounting cavity.

[0016] More preferably, the end face of the mounting base near the spindle connecting seat is perpendicular to the side wall of the mounting cavity, the end face of the mounting base near the spindle connecting seat is provided with a second guide rail and a third guide rail, and the slide is provided with a second slider that slides with the second guide rail and a third slider that slides with the third guide rail.

[0017] Preferably, the linear motor is connected to the side wall of the mounting cavity.

[0018] Preferably, the mounting base includes two vertically parallel columns and a crossbeam seat connected to the top of the two columns, and the balance cylinder is connected to the crossbeam seat.

[0019] More preferably, the crossbeam seat is connected to the end of the top of the two columns away from the main shaft connecting seat.

[0020] More preferably, the crossbeam seat is provided with a cylinder bracket, and the balance cylinder is mounted on the cylinder bracket.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the moving device of the horizontal machining center of the present invention has a slide block slidably connected to the mounting cavity and is driven by a linear motor to move up and down, which speeds up the movement of the moving device, helps to shorten the processing time and improve the processing efficiency.

[0022] Since linear motors do not have a self-locking limit function, if only a linear motor is used to drive the slide to move, when the slide moves to the designated position, it will slide down under its own weight and the weight of other structures connected to the slide, which is unsafe. Therefore, a balance cylinder can limit the movement of the slide by the air pressure in the cylinder when the slide moves to the designated position, so that the slide stops at the designated position and improves the safety of the rapid traverse device.

[0023] In addition, by connecting the balance cylinder to the end of the mounting base away from the spindle connector, the weight of the spindle connected to the spindle connector is balanced, effectively alleviating the problem of deformation of the mounting base. This helps to improve the stability and smoothness of the slide movement and improve the machining accuracy of the spindle. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the fast-moving device in the prior art CN217941868U;

[0025] Figure 2 This is a partial structural schematic diagram of the fast-moving device in the prior art CN217941868U;

[0026] Figure 3 This is a three-dimensional structural diagram of the moving device of the horizontal machining center of the present invention;

[0027] Figure 4 for Figure 3 3D exploded view of the moving device of a medium-sized horizontal machining center;

[0028] Figure 5 This is a three-dimensional structural schematic diagram of the moving device of the horizontal machining center of the present invention from another perspective.

[0029] Mounting base 1; Column 11; Horizontal beam seat 12; Cylinder bracket 121; Mounting cavity 13; First guide rail 14; Second guide rail 15; Third guide rail 16; Connecting platform 17;

[0030] Slide 2; Main shaft connecting seat 21; First slider 22; Second slider 23; Third slider 24;

[0031] Linear motor 3; stator 31; mover 32;

[0032] Balance cylinder 4. Detailed Implementation

[0033] In the description of this invention, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of the different embodiments or examples, without contradiction.

[0036] The following is in conjunction with the appendix Figure 3-5 The technical solution of the present invention will be further described below.

[0037] A moving device for a horizontal machining center, see [link / reference] Figures 3-5 The system includes a mounting base 1, a slide 2, a linear motor 3, a balancing cylinder 4, and a controller. The mounting base 1 has a mounting cavity 13 extending through both ends. The slide 2 is slidably connected to the mounting cavity 13 and can move up and down when driven. Along the line connecting the two ends of the mounting cavity 13 (Y direction), one end of the slide 2 has a spindle connecting seat 21 for connecting to the main spindle. The stator 31 of the linear motor 3 is fixedly connected to the mounting base 1, and the mover 32 of the linear motor 3 is vertically positioned and connected to the slide 2, thereby driving the slide 2 to move up and down. The balancing cylinder 4 is also vertically positioned, connected to the end of the mounting base 1 away from the spindle connecting seat 21, and its piston rod is connected to the other end of the slide 2, thus also driving the slide 2 to move up and down. Both the linear motor 3 and the balancing cylinder 4 are electrically connected to the controller, thereby synchronously driving the slide 2 to move up and down, ensuring smooth movement.

[0038] In this embodiment, the moving device of the horizontal machining center has a slide 2 slidably connected to the mounting cavity 13 and driven by a linear motor 3 to move up and down. This speeds up the movement of the moving device, which helps to shorten the processing time and improve processing efficiency. Since the linear motor 3 does not have a self-locking limit function, if only the linear motor 3 is used to drive the slide 2, when the slide 2 moves to the designated position, it will slide down under its own weight and the weight of other structures connected to the slide 2. If a power failure occurs, the slide 2 will fall vertically, which is unsafe. Therefore, a balance cylinder 4 is provided to limit the movement of the slide 2 when it moves to the designated position by the air pressure in the cylinder, so that the slide 2 stops at the designated position. Even in the event of a power failure, the balance cylinder 4 can still perform the limit function, which improves the safety of the rapid traverse device. In addition, the balance cylinder 4 is connected to the end of the mounting base 1 away from the spindle connecting base 21. This balances the weight of the spindle connected to the spindle connecting base 21, effectively alleviating the problem of deformation of the mounting base 1, thereby improving the stability and smoothness of the slide 2 movement and improving the machining accuracy of the spindle.

[0039] In this embodiment, both the linear motor 3 and the balancing cylinder 4 are commonly existing products. In actual use, the type and parameters of the linear motor 3 and the balancing cylinder 4 can be selected according to specific actual needs. Therefore, their specific structures will not be described in detail here.

[0040] In this embodiment, the mounting base 1 includes two vertically parallel columns 11 and a crossbeam seat 12 connected to the top of the two columns 11. The balancing cylinder 4 is connected to the crossbeam seat 12. To ensure the smooth movement of the slide 2, a first guide rail 14 is provided on one side wall of the mounting cavity 13 (hereinafter referred to as the "double guide rail side"), which is arranged vertically. The first guide rail 14 faces the other side wall of the mounting cavity 13 (hereinafter referred to as the "single guide rail side"). The slide 2 is provided with a first slider 22 that slides with the first guide rail 14. Each of the two columns 11 has a guide rail near the end face of the main shaft connecting seat 21, namely a second guide rail 15 and a third guide rail 16. The second guide rail 15 and the third guide rail 16 both face away from the balancing cylinder 4. The slide 2 is provided with a second slider 23 that slides with the second guide rail 15 and a third slider 24 that slides with the third guide rail 16. The first guide rail 14 and the second guide rail 15 are arranged on the same side. By setting three guide rails, the stability of the slide 2's movement is improved, thereby increasing the machining accuracy of the spindle connected to the slide 2. Furthermore, the first guide rail 14 faces the single-rail side, while the second guide rail 15 and the third guide rail 16 both face away from the balance cylinder 4. That is, the arrangement direction of the first guide rail 14 is perpendicular to that of the second guide rail 15 and the third guide rail 16. This limits the movement of the slide 2 in two directions, which helps improve the overall structural rigidity and spindle machining accuracy.

[0041] Finite element simulation analysis revealed that the torsional deformation of the mounting base 1 due to torque varied depending on the position of the balancing cylinder 4 at its end. Specifically, the position on the end face of the beam seat 12 away from the main shaft connecting seat 21, opposite to the slide 2, was divided into seven equal parts along the direction (X direction) connecting the two side walls of the mounting cavity 13. Finite element simulation was used to obtain the overall deformation of the mounting base 1 when the balancing cylinder 4 was connected at different positions. The specific results are shown in Table 1.

[0042] Table 1

[0043]

[0044] In the table, the larger the number of the position, the closer the connection position is to the dual guide rail side.

[0045] Based on this, the balance cylinder 4 is connected to the middle position of the end of the mounting base 1 away from the main shaft connecting seat 21. In this way, the deformation of the overall structure of the mounting base 1 is minimized, thereby improving the smoothness and stability of the slide 2's movement and avoiding the problem of the slide 2 becoming stuck or unstable due to excessive deformation of the mounting base 1.

[0046] When the moving device of this embodiment is applied to a horizontal machine tool, the rapid traverse device of this embodiment should have a structure for connecting with the horizontal machining center. In this embodiment, a connecting platform 17 is provided at the end of the slide 2 away from the spindle connecting seat 21. This connecting platform 17 is used to connect with other structures of the horizontal machining center. In some existing horizontal machining centers, the connection position with the moving device is located at the middle position of the end face of the moving device, that is, the connection position of the balance cylinder 4 and the mounting seat 1 mentioned above in this embodiment.

[0047] To avoid interference between the balancing cylinder 4 and the connection structure of the horizontal machining center connected to the connecting table 17, and based on the deformation results in Table 1, compared to setting the connection of the balancing cylinder 4 between the connecting table 17 and the single guide rail side, setting the connection position of the balancing cylinder 4 between the connecting table 17 and the double guide rail side results in a smaller overall deformation of the mounting base 1. This is beneficial to ensure the smoothness and stability of the slide 2's movement, and avoids the problem of the slide 2 becoming stuck or unstable due to excessive deformation of the mounting base 1.

[0048] In this embodiment, the first guide rail 14 is located on the wall surface away from the main shaft connecting seat 21. This results in a large distance between the first guide rail 14 and the second guide rail 15 and the third guide rail 16, which is beneficial to improving the structural rigidity of the mounting seat 1 and the stability of the slide 2 movement.

[0049] In this embodiment, the stator 31 of the linear motor 3 is connected to the wall of the double guide rail side of the mounting cavity 13, so that under the action of the first guide rail 14 and the second guide rail 15, the linear motor 3 can drive the slide 2 to move up and down quickly and smoothly along the two guide rails.

[0050] In this embodiment, a cylinder bracket 121 is provided on the crossbeam seat 12, and a balance cylinder 4 is connected to the cylinder bracket 121. The crossbeam seat 12 is connected to the ends of the tops of the two columns 11 that are away from the spindle connecting seat 21. Thus, the measuring seat and the cylinder bracket 121 can further achieve weight balance with the spindle on the spindle connecting seat 21, effectively alleviating the problem of deformation of the mounting seat 1, thereby improving the stability and smoothness of the slide 2 movement and improving the machining accuracy of the spindle.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A moving device for a horizontal machining center, characterized in that, include: Mounting base, the mounting base has mounting cavities that pass through both ends, the mounting base includes two vertically parallel columns and a crossbeam seat connected to the top of the two columns, the crossbeam seat is connected to the end of the top of the two columns away from the main shaft connecting seat, and a cylinder bracket is provided on the crossbeam seat. A slide block is slidably connected to a mounting cavity. Along the line connecting the two ends of the mounting cavity, one end of the slide block has a spindle connector for connecting to the main spindle, and the other end has a connecting platform. A first slider is located at the other end of the slide block near the side wall of the mounting cavity. A first guide rail is provided on the side wall of the mounting cavity, slidingly engaging with the first slider. The side wall of the mounting cavity for mounting the first guide rail is a double-guide-rail side, and the other side wall of the first guide rail facing the mounting cavity is a single-guide-rail side. The end face of the mounting block near the spindle connector is perpendicular to the side wall of the mounting cavity. A second guide rail and a third guide rail are provided on the end face of the mounting block near the spindle connector, both facing away from the balance cylinder. The first guide rail is perpendicular to the arrangement direction of the second and third guide rails. The slide block has a second slider that slidesly engages with the second guide rail and a third slider that engages with the third guide rail. The first and second guide rails are located on the same side. A linear motor, wherein the stator of the linear motor is connected to the wall surface of the double guide rail side of the mounting cavity, and the mover of the linear motor is arranged in a vertical direction and connected to the slide. A balancing cylinder is arranged vertically and is connected to the surface of the mounting base away from the main shaft connecting seat and located between the connecting platform and the double guide rail side. It is connected to the middle position of the end of the mounting base away from the main shaft connecting seat. The balancing cylinder is mounted on the cylinder bracket and its piston rod is connected to the other end of the slide. Controllers used for electrical connection with linear motors and balancing cylinders.

2. The moving device of the horizontal machining center according to claim 1, characterized in that: A linear motor and a balancing cylinder synchronously drive the slide to move up and down.

3. The moving device of the horizontal machining center according to claim 1, characterized in that: The connecting platform is located at the end of the slide away from the main shaft connecting seat.

4. The moving device of the horizontal machining center according to claim 1, characterized in that: The first guide rail is positioned on the wall surface away from the main spindle connector.

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