Lightweight sliding seat, sliding saddle and ram combined structure of horizontal machining center

Abstract

The utility model belongs to the technical field of machining centers, and discloses a light-weight sliding seat, sliding saddle and ram combined structure of a horizontal machining center, which comprises a sliding seat assembly, a sliding saddle assembly and a ram assembly, the sliding seat assembly is of a frame type structure, and the sliding saddle assembly moves up and down along a vertical guide rail on a sliding seat. The ram assembly is installed in the saddle assembly and moves in the horizontal direction. The sliding seat assembly, the sliding saddle assembly and the ram assembly are respectively formed by splicing a plurality of supporting plates with lightening holes and rib plates, and the supporting plates and the rib plates are fixed through welding or mechanical connection. According to the structure and motion characteristics of the sliding seat, the sliding saddle and the ram, disassembly is carried out, and the supporting plates with the round holes are used for combination. The reinforcing ribs and the like are arranged in the structure to guarantee strength and positioning accuracy, the weight of the three-coordinate driving framework of the main shaft is greatly reduced, the rigidity is enough, the machining difficulty is lower than that of a traditional casting, and the response speed of the main shaft is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining centers, and in particular relates to a lightweight sliding seat, a sliding saddle and a sliding ram combined structure of a horizontal machining center for improving machining speed. Background Art

[0002] Our company has designed a horizontal machining center for processing automotive parts. The product is made of aluminum alloy, with milling, drilling, tapping and milling as the main processes. Aluminum alloy has good thermal conductivity and low cutting temperature, and generally adopts a low feed and high speed processing strategy. In order to improve production efficiency, it is necessary to simultaneously increase the movement speed of the spindle in the X, Y, and Z directions. As the support and moving parts of the spindle, traditional slides, saddles, and rams, such as a high-precision beam, saddle, and ram combination structure disclosed in Chinese invention patent CN116100330A, are usually produced by castings. The slides, saddles, and rams produced by castings are heavy, resulting in large inertia and slow response speed during spindle cutting, which also increases the energy consumption of processing companies.

[0003] At the same time, the horizontal machining center designed by our company has large slides, saddles and rams due to the special requirements of the products. If castings are used for the design, the processing difficulty of the slides, saddles and rams will be greatly increased. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the problem to be solved by the utility model is that the existing machining center, the slide seat, slide saddle, and slide ram that drive the spindle to move in the X, Y, and Z directions, mainly adopt a casting structure, which is heavy and slow to respond, limiting the production efficiency of the machining center, increasing the energy consumption of the manufacturing enterprise, and making the machining difficult. The utility model discloses a lightweight slide seat, slide saddle, and slide ram combined structure of a horizontal machining center, which adopts a split structure and is welded after splicing, thereby reducing the machining difficulty, improving the spindle response speed, and improving the production efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a lightweight slide, saddle and ram combined structure of a horizontal machining center, including a slide assembly, a saddle assembly and a ram assembly. The slide assembly is a frame structure. The saddle assembly moves up and down along the vertical guide rail on the slide. The ram assembly is installed in the saddle assembly and moves in the horizontal direction.

[0006] The sliding seat assembly, the sliding saddle assembly and the sliding pillow assembly are respectively formed by splicing a plurality of supporting plates and rib plates with weight-reducing holes.

[0007] According to another embodiment of the present invention or the combined structure of any of the aforementioned embodiments, the support plate and the rib plate are fixed by welding or mechanical connection.

[0008] According to another embodiment of the utility model or a combination structure of any of the aforementioned embodiments, wherein the slide seat assembly includes an upper top plate, an upper bottom plate, an upper rib plate, a front baffle, a lateral outer support plate, a lateral rib plate, a lateral inner support plate, a lower bottom plate, and a lower top plate; the front and rear sides of the upper top plate and the upper bottom plate are connected by the front baffle, and the left and right sides are connected to a part of the lateral outer support plate and the lateral inner support plate, and the upper rib plate is installed between the upper top plate and the upper bottom plate as a support; the lateral outer support plate and the lateral inner support plate respectively form two groups of symmetrical vertical support structures through the lateral rib plates, and the lower bottom plate and the lower top plate are installed in the middle of the lower parts of the two lateral inner support plates; a servo motor is installed on the upper top plate, and the servo motor drives the slide saddle assembly to rise and fall through a screw; the upper top plate, the upper bottom plate, the front baffle, the lateral outer support plate, the lateral inner support plate, the lower bottom plate, and the lower top plate are provided with weight reduction holes.

[0009] According to another embodiment of the utility model or the combined structure of any of the aforementioned embodiments, the upper top plate is provided with a protruding trapezoidal structure for installing a servo drive motor.

[0010] According to another embodiment of the utility model or a combined structure of any of the aforementioned embodiments, a vertical slide rail mounting plate is installed between the upper top plate and the lower bottom plate, and the vertical slide rail is installed on the vertical slide rail mounting plate; a plurality of horizontal support blocks are also provided, and the two sides of the horizontal support blocks are respectively connected to the lateral outer support plate and the vertical slide rail mounting plate.

[0011] According to another embodiment of the utility model or a combination structure of any of the aforementioned embodiments, the saddle assembly includes a transverse bracket, a longitudinal bracket, a side bracket, a vertical bracket, and a bottom bracket, the bottom bracket includes a bottom bracket top plate, a bottom bracket bottom plate, and a bottom bracket rib plate, the bottom bracket top plate and the bottom bracket bottom plate are connected to the side bracket and supported by the bottom bracket rib plate; the side bracket includes a side bracket inner plate, a side bracket inclined plate, and a side bracket outer plate, the side bracket inner plate and the side bracket outer plate are trapezoidal and a side bracket inclined plate is installed therebetween; a vertical bracket extending outward is respectively installed on both sides of the end of the side bracket; two horizontally arranged transverse brackets are installed on the top of the side bracket, two longitudinal brackets are vertically installed between the transverse brackets, and a horizontal linear bearing is installed on the lower part of the longitudinal bracket; the transverse bracket, the longitudinal bracket, the side bracket, the vertical bracket, and the bottom bracket are provided with weight reduction holes.

[0012] According to another embodiment of the utility model or the combined structure of any of the aforementioned embodiments, wherein the linear bearing mounting plate is mounted on the top plate of the bottom bracket, and a horizontal linear bearing cooperating with the movement of the slide assembly is arranged on the linear bearing mounting plate.

[0013] According to another embodiment of the utility model or the combined structure of any of the aforementioned embodiments, the slide assembly includes a trapezoidal plate, a circular hole support plate, a slide seat plate, and a spindle mounting plate, a lower transverse slide rail is installed at the bottom of the slide seat plate to cooperate with the horizontal linear bearing, two symmetrical slide side support plates are installed on the slide seat plate, the spindle mounting plate is installed at the end of the slide side support plate, and the spindle is installed on the spindle mounting plate; a plurality of evenly arranged circular hole support plates are installed between the slide side support plates, a groove is provided at the bottom of the circular hole support plate, and a center rib plate is installed in the groove, and the center rib plate is vertically installed at the center of the upper part of the slide seat plate; the two slide side support plates and the upper part of the circular hole support plate are fixedly connected to the trapezoidal plate, angle irons are installed on both sides of the trapezoidal plate, and an upper transverse slide rail is installed on the angle iron to cooperate with the horizontal linear bearing; the trapezoidal plate, the circular hole support plate, and the slide seat plate are provided with weight reduction holes.

[0014] According to another embodiment of the utility model or the combined structure of any of the aforementioned embodiments, the weight-reducing holes are in at least one of the following shapes: circular, square, polygonal.

[0015] Beneficial effects of the utility model:

[0016] The light-weight slide, saddle and ram combination structure of the horizontal machining center described in the utility model is disassembled according to the structure and motion characteristics of the slide, saddle and ram, and combined with a support plate with round holes or other weight-reducing holes. The utility model sets reinforcing ribs in the structure to ensure strength and positioning accuracy, greatly reduces the weight of the spindle three-coordinate drive structure, and has sufficient rigidity, lower processing difficulty than traditional castings, and faster spindle response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the combined structure of a lightweight slide seat, a slide saddle and a slide ram of a horizontal machining center described in the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the slide assembly described in the utility model;

[0019] Figure 3 It is a front cross-sectional schematic diagram of the slide assembly described in the utility model;

[0020] Figure 4 It is a top cross-sectional schematic diagram of the slide assembly described in the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the saddle assembly and the ram assembly of the utility model;

[0022] Figure 6 It is an enlarged three-dimensional schematic diagram of the sliding saddle assembly described in the utility model;

[0023] Figure 7 It is an enlarged forward schematic diagram of the saddle assembly described in the utility model;

[0024] Figure 8 It is an enlarged side cross-sectional schematic diagram of the sliding saddle assembly described in the utility model;

[0025] Fig. 9 It is a three-dimensional schematic diagram of the ram assembly of the utility model;

[0026] Fig.10 It is a rear view schematic diagram of the ram assembly of the utility model;

[0027] Fig.11 It is a side cross-sectional schematic diagram of the ram assembly of the utility model;

[0028] In the figure:

[0029] 100, slide assembly; 111, upper top plate; 112, upper bottom plate; 113, upper rib plate; 114, front baffle; 121, lateral outer support plate; 122, lateral rib plate; 123, lateral inner support plate; 124, vertical slide rail mounting plate; 125, horizontal support block; 131, lower bottom plate; 132, lower top plate;

[0030] 200, saddle assembly; 210, transverse bracket; 211, horizontal linear bearing; 220, longitudinal bracket; 230, side bracket; 231, side bracket inner plate; 232, side bracket inclined plate; 233, side bracket outer plate; 240, vertical bracket; 250, bottom bracket; 251, bottom bracket top plate; 252, linear bearing mounting plate; 253, bottom bracket bottom plate; 254, bottom bracket rib plate;

[0031] 300, ram assembly; 310, upper transverse slide rail; 320, lower transverse slide rail; 330, angle iron; 331, trapezoidal plate; 340, round hole support plate; 341, center rib plate; 350, ram seat plate; 360, ram side support plate; 370, spindle mounting plate;

[0032] 400. Main axis. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figure 1 , 5As shown, a lightweight slide, saddle, and ram combination structure of a horizontal machining center includes a slide assembly 100, a saddle assembly 200, and a ram assembly 300. The slide assembly 100 is a frame structure. The saddle assembly 200 moves up and down along the vertical guide rail on the slide. The ram assembly 300 is installed in the saddle assembly 200 and moves in the horizontal direction. The weight-reducing hole is at least one of the following shapes: circular, square, and polygonal. The slide assembly 100, the saddle assembly 200, and the ram assembly 300 are respectively formed by splicing a plurality of support plates and rib plates with weight-reducing holes. The support plates and rib plates are fixed by welding or mechanical connection.

[0035] like Figure 2 , 3 4, the slide assembly 100 includes an upper top plate 111, an upper bottom plate 112, an upper rib plate 113, a front baffle plate 114, a lateral outer support plate 121, a lateral rib plate 122, a lateral inner support plate 123, a lower bottom plate 131, and a lower top plate 132; the front and rear sides of the upper top plate 111 and the upper bottom plate 112 are connected by the front baffle plate 114, and the left and right sides are connected to a part of the lateral outer support plate 121 and the lateral inner support plate 123, and the upper rib plate 113 is installed between the upper top plate 111 and the upper bottom plate 112 as a support The lateral outer support plate 121 and the lateral inner support plate 123 respectively form two groups of symmetrical vertical support structures through the lateral rib plate 122, and the lower bottom plate 131 and the lower top plate 132 are installed in the middle of the lower part of the two lateral inner support plates 123; the upper top plate 111 is installed with a servo motor, and the servo motor drives the saddle assembly 200 to rise and fall through a lead screw; the upper top plate 111, the upper bottom plate 112, the front baffle 114, the lateral outer support plate 121, the lateral inner support plate 123, the lower bottom plate 131, and the lower top plate 132 are provided with weight reduction holes. The upper top plate 111 is provided with a protruding trapezoidal structure for installing a servo drive motor. A vertical slide rail mounting plate 124 is installed between the upper top plate 111 and the lower bottom plate 131, and the vertical slide rail is installed on the vertical slide rail mounting plate 124; a plurality of horizontal support blocks 125 are also provided, and the two sides of the horizontal support blocks 125 are respectively connected to the lateral outer support plate 121 and the vertical slide rail mounting plate 124.

[0036] like Figure 5 , 6As shown in , 7 and 8, the saddle assembly 200 includes a transverse bracket 210, a longitudinal bracket 220, a side bracket 230, a vertical bracket 240, and a bottom bracket 250. The bottom bracket 250 includes a bottom bracket top plate 251, a bottom bracket bottom plate 253, and a bottom bracket rib plate 254. The bottom bracket top plate 251 and the bottom bracket bottom plate 253 are connected to the side bracket 230 and supported by the bottom bracket rib plate 254; the side bracket 230 includes a side bracket inner plate 231, a side bracket inclined plate 232, and a side bracket outer plate 233. The side bracket inner plate 231 , the side bracket outer plate 233 is trapezoidal and a side bracket inclined plate 232 is installed between the two; a vertical bracket 240 extending outward is installed on both sides of the end of the side bracket 230; two horizontally arranged transverse brackets 210 are installed on the top of the side bracket 230, and two longitudinal brackets 220 are vertically installed between the transverse brackets 210, and a horizontal linear bearing 211 is installed at the bottom of the longitudinal bracket 220; the transverse bracket 210, the longitudinal bracket 220, the side bracket 230, the vertical bracket 240, and the bottom bracket 250 are provided with weight reduction holes. The linear bearing mounting plate 252 is installed on the top plate 251 of the bottom bracket, and the linear bearing mounting plate 252 is provided with a horizontal linear bearing 211 that cooperates with the movement of the ram assembly 300.

[0037] like Fig. 9 , 10 As shown in Figure 11, the ram assembly 300 includes a trapezoidal plate 331, a round hole support plate 340, a ram seat plate 350, and a spindle mounting plate 370. The bottom of the ram seat plate 350 is installed with a lower transverse slide rail 320 to cooperate with the horizontal linear bearing 211. Two symmetrical ram side support plates 360 are installed on the ram seat plate 350. The spindle mounting plate 370 is installed at the end of the ram side support plate 360. The spindle 400 is installed on the spindle mounting plate 370; multiple evenly arranged ram side support plates 360 are installed between the ram side support plates 360. The round hole support plate 340 has a groove at the bottom and a center rib plate 341 is installed in the groove. The center rib plate 341 is vertically installed in the center of the upper part of the sliding pillow seat plate 350; the two sliding pillow side support plates 360 and the upper part of the round hole support plate 340 are fixedly connected to the trapezoidal plate 331, and angle irons 330 are installed on both sides of the trapezoidal plate 331. The angle irons 330 are installed with upper transverse slide rails 310 and horizontal linear bearings 211; weight reduction holes are set on the trapezoidal plate 331, the round hole support plate 340 and the sliding pillow seat plate 350.

[0038] The working principle of this utility model:

[0039] like Figure 1 As shown, the slide, saddle and ram combination structure is equipped with a three-coordinate machining unit. The slide is a frame structure. A servo motor and a high-speed lead screw are used to drive the saddle to move vertically up and down along the Y-axis in the middle of the slide. The Y-axis motor is equipped with a brake to prevent the vertical moving parts from falling in case of power failure. The ram assembly is arranged in the saddle, and a linear motor is used to drive the ram to move linearly along the Z-axis perpendicular to the XY plane. A BC-axis five-axis head is installed on the ram.

[0040] like Figure 2 , 3 As shown in Figures 4 and 5, the slide assembly 100 is a frame-shaped structure, and large circular holes evenly arranged on the side supports and the top are used to reduce weight. At the same time, vertical and horizontal ribs are used inside the side supports to improve the support strength. The ram assembly 300, the saddle assembly 200, and the main shaft 400 move up and down on the slide, and the guide rails need to maintain sufficient positioning accuracy and rigidity. The utility model sets a vertical slide rail mounting plate 124 as a support for the vertical slide rail, and a horizontal support block 125 provides support force for the vertical slide rail mounting plate 124. The front baffle 114 is a trapezoidal structure to provide more support surfaces for the servo motor.

[0041] like Figure 5 , 6 As shown in FIGS. 7 and 8, the top of the saddle assembly 200 is connected by the transverse bracket 210 and the longitudinal bracket 220 in an I-shaped manner, and is used to install the horizontal linear bearing 211. The two sets of side brackets 230 are connected by the transverse bracket 210, and the side bracket 230 is provided with a vertical bracket 240. The slider is installed on the vertical bracket 240 to cooperate with the vertical guide rail on the slide assembly 100, and a horizontal reinforcement plate is arranged in the vertical bracket 240. A plurality of symmetrically arranged linear bearing mounting plates 252 are arranged on the top plate 251 of the bottom bracket 250 to ensure positioning accuracy and facilitate the disassembly and assembly of the linear bearing.

[0042] like Fig. 9 , 10 As shown in Figure 11, the slide assembly 300 has a top structure of a trapezoidal plate 331 and an angle iron 330 spliced ​​together, which serves as a support for the upper transverse slide rail 310. A slide seat plate 350 is arranged at the bottom, and a plurality of coaxial circular hole support plates 340 are arranged at the center of the slide side support plate 360. A mounting groove is arranged at the bottom of the circular hole support plate 340, and a central rib plate 341 is inserted into the mounting groove, so that the structure of the slide assembly 300 is more stable and the weight is greatly reduced.

[0043] The machine tool adopts imported linear ball guide structure in X, Y and Z directions. The X and Z fast feed speed and cutting feed speed can reach 90m / min, and the Y axis fast moving speed is up to 80m / min. The X, Y and Z axes adopt magnetic grating, and the A, B and C axes adopt absolute circular grating to achieve closed-loop control. Each axis of the machine tool has system soft protection, peripheral travel switch and mechanical elastic anti-collision block to prevent collision.

[0044] The above shows and describes the basic principles, main features and advantages of the utility model. The technicians in this industry should understand that the above implementation is only to illustrate the technical concept and characteristics of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it, and it cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A lightweight slide, saddle and ram combination structure for a horizontal machining center, characterized in that: The invention comprises a slide seat assembly (100), a slide saddle assembly (200), and a slide pillow assembly (300); the slide seat assembly (100) is a frame structure; the slide saddle assembly (200) moves vertically up and down along the slide seat; and the slide pillow assembly (300) is installed in the slide saddle assembly (200) and moves horizontally. The sliding seat assembly (100), the sliding saddle assembly (200), and the sliding pillow assembly (300) are respectively formed by splicing a plurality of supporting plates and rib plates with weight-reducing holes.

2. The lightweight slide, saddle and ram combined structure of a horizontal machining center according to claim 1, characterized in that: The support plate and the rib plate are fixed by welding or mechanical connection.

3. The lightweight slide, saddle and ram combined structure of a horizontal machining center according to claim 1, characterized in that: The slide assembly (100) comprises an upper top plate (111), an upper bottom plate (112), an upper rib plate (113), a front baffle plate (114), a lateral outer support plate (121), a lateral rib plate (122), a lateral inner support plate (123), a lower bottom plate (131), and a lower top plate (132); the front and rear sides of the upper top plate (111) and the upper bottom plate (112) are connected via the front baffle plate (114), and the left and right sides are connected to a part of the lateral outer support plate (121) and the lateral inner support plate (123); the upper rib plate (113) is installed between the upper top plate (111) and the upper bottom plate (112) as Support; the lateral outer support plate (121) and the lateral inner support plate (123) respectively form two groups of symmetrical vertical support structures through the lateral rib plate (122); the lower bottom plate (131) and the lower top plate (132) are installed in the middle of the lower part of the two lateral inner support plates (123); a servo motor is installed on the upper top plate (111), and the servo motor drives the sliding saddle assembly (200) to rise and fall through a screw; the upper top plate (111), the upper bottom plate (112), the front baffle (114), the lateral outer support plate (121), the lateral inner support plate (123), the lower bottom plate (131), and the lower top plate (132) are provided with weight reduction holes.

4. The lightweight slide seat, saddle and ram combined structure of a horizontal machining center according to claim 3, characterized in that: The upper top plate (111) is provided with a protruding trapezoidal structure for mounting a servo drive motor.

5. The lightweight slide seat, saddle and ram combined structure of a horizontal machining center according to claim 3, characterized in that: A vertical slide rail mounting plate (124) is installed between the upper top plate (111) and the lower bottom plate (131), and the vertical slide rail is installed on the vertical slide rail mounting plate (124); a plurality of horizontal support blocks (125) are also provided, and two sides of the horizontal support blocks (125) are respectively connected to the lateral outer support plate (121) and the vertical slide rail mounting plate (124).

6. A lightweight slide, saddle and ram combined structure for a horizontal machining center according to claim 1 or 3, characterized in that: The saddle assembly (200) comprises a transverse bracket (210), a longitudinal bracket (220), a side bracket (230), a vertical bracket (240), and a bottom bracket (250); the bottom bracket (250) comprises a bottom bracket top plate (251), a bottom bracket bottom plate (253), and a bottom bracket rib plate (254); the bottom bracket top plate (251) and the bottom bracket bottom plate (253) are connected to the side bracket (230) and supported by the bottom bracket rib plate (254); the side bracket (230) comprises a side bracket inner plate (231), a side bracket inclined plate (232), and a side bracket outer plate (233); the side bracket inner plate (231) , the side bracket outer plate (233) is trapezoidal and a side bracket inclined plate (232) is installed between the two; a vertical bracket (240) extending outward is installed on both sides of the end of the side bracket (230); two horizontally arranged transverse brackets (210) are installed on the top of the side bracket (230), and two longitudinal brackets (220) are vertically installed between the transverse brackets (210), and a horizontal linear bearing (211) is installed at the bottom of the longitudinal bracket (220); the transverse bracket (210), the longitudinal bracket (220), the side bracket (230), the vertical bracket (240), and the bottom bracket (250) are provided with weight reduction holes.

7. A lightweight slide, saddle and ram combined structure for a horizontal machining center according to claim 6, characterized in that: A linear bearing mounting plate (252) is mounted on the top plate (251) of the bottom bracket, and a horizontal linear bearing (211) is arranged on the linear bearing mounting plate (252) to cooperate with the movement of the ram assembly (300).

8. The lightweight slide, saddle and ram combined structure of a horizontal machining center according to claim 6, characterized in that: The ram assembly (300) comprises a trapezoidal plate (331), a circular hole support plate (340), a ram seat plate (350), and a spindle mounting plate (370); a lower transverse slide rail (320) is mounted at the bottom of the ram seat plate (350) to cooperate with a horizontal linear bearing (211); two symmetrical ram side support plates (360) are mounted on the ram seat plate (350); a spindle mounting plate (370) is mounted at the end of the ram side support plate (360); and a spindle (400) is mounted on the spindle mounting plate (370); a plurality of evenly arranged circular hole support plates (340) are mounted between the ram side support plates (360). 340), a groove is provided at the bottom of the circular hole support plate (340) and a central rib plate (341) is installed in the groove, and the central rib plate (341) is vertically installed at the center of the upper part of the ram seat plate (350); the two ram side support plates (360) and the upper part of the circular hole support plate (340) are fixedly connected to the trapezoidal plate (331), and angle irons (330) are installed on both sides of the trapezoidal plate (331), and an upper transverse slide rail (310) is installed on the angle iron (330) to cooperate with the horizontal linear bearing (211); the trapezoidal plate (331), the circular hole support plate (340) and the ram seat plate (350) are provided with weight reduction holes.

9. A lightweight slide, saddle and ram combined structure for a horizontal machining center according to claim 1 or 3, characterized in that: The weight-reducing holes are in at least one of the following shapes: circular, square, and polygonal.

Images