Light high-speed double-swing-head ram body and machining center

Abstract

The invention provides a light high-speed double-swing-head ram body and a machining center, and belongs to the field of ram bodies, the light high-speed double-swing-head ram body comprises a ram body, the ram body comprises an upper framework and a lower framework which are sequentially connected in the vertical direction, and the lower framework comprises a lower front panel, a lower right side plate, a lower rear panel and a lower left side plate which are sequentially connected end to end and welded together; at least one transverse rib plate is arranged in a cavity formed by the lower front panel, the lower right side plate, the lower rear panel and the lower left side plate in the length direction of the lower framework, and inner rib plates are arranged at the included angle of the lower front panel and the lower right side plate, the included angle of the lower front panel and the lower left side plate, the included angle of the lower rear panel and the lower right side plate and the included angle of the lower rear panel and the lower left side plate. And outer rib plates are arranged on the outer surfaces of the lower front panel, the lower right side plate and the lower left side plate. The ram body has the beneficial effects that the ram body can meet the rigidity requirement of a ram and has the characteristic of light weight, so that the dynamic response performance of a machine tool is improved.

Description

Technical Field

[0001] The invention belongs to the field of ram bodies, and in particular relates to a light-duty high-speed double-swing-head ram body and a machining center. Background Art

[0002] In heavy-duty processing equipment such as large gantry CNC machining centers, vertical turning machining centers, CNC floor-standing boring and milling machines, the ram body is one of the important components, and its structure and performance will directly affect the overall performance of the machine tool.

[0003] At present, the existing ram bodies are mostly made of QT casting and welding. However, it is well known that the strength of known casting materials is generally not high, while the ram body has relatively high strength requirements. At the same time, due to its unique guide rail setting method, the square ram also requires the structure to be closely matched with the guide rail pair. Therefore, in order to meet the high strength requirements and guide rail matching, the volume of the ram body will inevitably increase, resulting in its heavy weight. This increase in volume and weight will not only make it difficult for the ram body to meet the requirements of five-axis linkage high-speed machining machines for light loads and fast dynamic response, but also go against the current trend of lightweight development. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a lightweight high-speed double-swing head slide body and a machining center, and the slide body can not only meet the slide stiffness requirements, but also have the characteristics of being lightweight, so as to minimize the weight of the Z-axis moving parts and improve the dynamic response performance of the X, Y, and Z axes of the machine tool.

[0005] In order to solve the above technical problems, on the one hand, the present invention provides a light high-speed double-swing head sliding body, which includes a sliding body, the sliding body includes an upper frame and a lower frame connected in sequence along the vertical direction, the upper frame includes an upper front panel, an upper right side panel, an upper rear panel and an upper left side panel which are welded together end to end, at least one horizontal rib plate is arranged in the cavity formed by the upper front panel, the upper right side panel, the upper rear panel and the upper left side panel along the length direction of the upper frame, and inner rib plates are arranged at the angle between the upper front panel and the upper right side panel, the angle between the upper front panel and the upper left side panel, the angle between the upper rear panel and the upper right side panel, and the angle between the upper rear panel and the upper left side panel. The lower frame includes a lower front panel, a lower right side panel, a lower rear panel and a lower left side panel which are welded together end to end in sequence, and at least one transverse rib plate is arranged in the cavity formed by the lower front panel, the lower right side panel, the lower rear panel and the lower left side panel along the length direction of the lower frame, and inner rib plates are arranged at the angle between the lower front panel and the lower right side panel, the angle between the lower front panel and the lower left side panel, the angle between the lower rear panel and the lower right side panel and the angle between the lower rear panel and the lower left side panel, and outer rib plates are arranged on the outer surfaces of the lower front panel, the lower right side panel and the lower left side panel, and the extension direction of the outer rib plates is the same as the length direction of the lower frame, and the length of the outer rib plates is the same as the length of the lower frame. At this time, since the present invention not only divides the overall slide body into an upper frame and a lower frame with different thicknesses, but also provides external ribs on the outer surfaces of the lower front panel, the lower right side panel and the lower left side panel, the support, torsion and bending rigidity of each panel can be effectively improved through the external ribs to avoid deformation of the slide body when it is overhanging greatly. As a result, the slide body can effectively reduce the thickness of the lower front panel, the lower right side panel and the lower left side panel at the lower frame while meeting the high rigidity requirements, and reduce the weight of the slide body by half. This can not only reduce the configuration of supporting parts and reduce the production cost of equipment, but also greatly improve the overall dynamic performance of the machine tool.

[0006] Furthermore, the lower rear panel and the upper rear panel are an integrated piece to ensure the accuracy, rigidity and transmission of the ram body.

[0007] Furthermore, the edge of the transverse rib plate is penetrated by an edge through hole, the middle of the transverse rib plate is penetrated by a center through hole, and a pipeline collection pipe is installed in the center through hole. At this time, the edge through hole is a routing channel for the fixed pipeline, and the pipeline collection pipe is a routing channel for the electric, gas, and liquid pipelines that rotate ±360° with the C axis. In this way, since the present invention separates the routing of the fixed pipeline from the routing of the follow-up pipeline, it can achieve dynamic-static separation of the cable and avoid cable entanglement and damage.

[0008] Furthermore, the upper left side plate is provided with a balancing cylinder base plate, and the balancing cylinder is supported and installed by the balancing cylinder base plate.

[0009] Furthermore, a grating scale substrate is provided on the outer surface of the lower right side plate, and the grating scale substrate is used to support and position the grating scale, so that the operator can perform measurements conveniently.

[0010] Furthermore, the upper front panel, upper right panel, upper left panel of the upper frame and the lower front panel, lower right panel, lower left panel of the lower frame are all provided with process holes and / or weight reduction holes, and the assembly requirements of the sliding pillow body are met through the process holes and weight reduction holes.

[0011] Furthermore, the inner rib plate is provided with process holes and / or weight-reducing holes, and the overall weight is reduced through the weight-reducing holes and process holes.

[0012] Furthermore, the rear end face of the slide body is provided with a linear motor and a linear guide pair, and the linear motor and the linear guide pair can cooperate with the transmission structure such as the gantry of the machining center on which it is installed to realize the movement of the slide body in the corresponding direction, thereby meeting the movement requirements of the corresponding machining center.

[0013] Furthermore, a double swing head is rotatably mounted on the lower end of the ram body. The double swing head itself has two rotational degrees of freedom and can perform linear motion with the ram body.

[0014] On the other hand, the present invention also provides a machining center, which includes the above-mentioned light high-speed double-swing head slide body, and the double-swing head can be driven to move along the Z axis by the light high-speed double-swing head slide body.

[0015] It can be seen from the above technical solutions that the present invention has the following advantages: 1. Since the present invention divides the entire ram body into two parts, the upper frame and the lower frame, the upper frame and the lower frame can be welded together with thin plates of different thicknesses according to the actual stroke and the containing area of ​​the ram body, thereby effectively reducing the weight of the ram body; 2. Since the present invention performs weight-reducing processing by opening holes at all panels and ribs, it can also reduce the weight of the entire ram body to a certain extent; 3. Since the present invention not only has inner ribs and transverse ribs inside the upper frame and the lower frame, but also has outer ribs on the outer surface of each panel at the lower frame, it can not only improve the torsional and bending rigidity of the ram body through the mesh structure formed by the transverse ribs and the inner ribs, but also can further improve the support, torsion and bending rigidity of the corresponding panel through the outer ribs, avoiding deformation of the ram body when it is overhanging, so that the ram body has both high rigidity and light weight, thereby achieving the purpose of reducing the configuration of supporting parts, reducing production costs, and greatly improving the overall dynamic performance of the machine tool; 4. Since the present invention sets the routing of the fixed pipeline separately from the routing of the follow-up pipeline, it can achieve dynamic-static separation of the cables and avoid cable entanglement and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of Embodiment 1 of the present invention; Figure 2 The structure of the ram body in the present invention is shown in FIG. Figure 1 ; Figure 3 The structure of the ram body in the present invention is shown in FIG. Figure 2 .

[0018] In the figure: 1. Linear motor; 2. Linear guide pair; 3. Slide body; 4. Double swing head; 5. Pipeline collection pipe; 6. Weight reduction hole; 7. Inner rib plate; 8. Lower front panel; 9. Lower right side panel; 10. Lower rear panel; 11. Grating scale substrate; 12. Horizontal rib plate; 13. Balance cylinder substrate; 14. Outer rib plate; 15. Lower left side panel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1 like Figures 1 to 3 As shown, the first embodiment provides a light high-speed double-swing head slide body, which includes a slide body 3 and a double-swing head 4 installed at the lower end of the slide body 3, a linear motor 1 installed on the rear side of the slide body 3, and a linear guide pair 2.

[0021] like Figure 2 As shown, the ram body 3 includes an upper frame and a lower frame connected in sequence along the vertical direction, and the upper frame and the lower frame are made of thin plates of different thicknesses welded together. Figure 2 , Figure 3As shown, the upper frame includes an upper front panel, an upper right panel, an upper rear panel and an upper left panel which are welded together end to end in sequence, and the upper left panel is provided with a balancing cylinder base plate 13, and the balancing cylinder is supported and installed by the balancing cylinder base plate 13. At least one transverse rib plate 12 is provided in the cavity formed by the upper front panel, the upper right panel, the upper rear panel and the upper left panel along the length direction of the upper frame, and inner rib plates 7 are provided at the angles between the upper front panel and the upper right panel, the angles between the upper front panel and the upper left panel, the angles between the upper rear panel and the upper right panel, and the angles between the upper rear panel and the upper left panel.

[0022] The lower frame includes a lower front panel 8, a lower right side panel 9, a lower rear panel 10 and a lower left side panel 15 which are welded together end to end in sequence, and the lower rear panel 10 is an integral part with the upper rear panel to bear the accuracy, rigidity and transmission of the entire slide body 3; the outer surface of the lower right side panel 9 is provided with a grating scale substrate 11, and the grating scale is supported and positioned by the grating scale substrate 11, so that the operator can conveniently perform measurements. At least one transverse rib 12 is arranged in the cavity formed by the lower front panel 8, the lower right side panel 9, the lower rear panel 10 and the lower left side panel 15 along the length direction of the lower frame, and inner ribs 7 are arranged at the angles between the lower front panel 8 and the lower right side panel 9, the angles between the lower front panel 8 and the lower left side panel 15, the angles between the lower rear panel 10 and the lower right side panel 9 and the angles between the lower rear panel 10 and the lower left side panel 15. The outer surfaces of the lower front panel 8, the lower right side panel 9 and the lower left side panel 15 are arranged with outer ribs 14, the extension direction of the outer ribs 14 is the same as the length direction of the lower frame, and the length of the outer ribs 14 is the same as the length of the lower frame.

[0023] At this time, the first embodiment can, on the one hand, form the skeleton of the entire ram body 3 through the O-shaped structure formed by the transverse rib plate 12 and each front panel, rear panel, left side panel, and right side panel at the upper frame and the lower frame, and the mesh structure formed by the transverse rib plate 12 and each inner rib plate 7, so as to effectively improve the torsion and bending rigidity of the entire ram body 3. On the other hand, it can further improve the support, torsion, and bending rigidity of each panel by the outer rib plate 14 set on the outer surface of the lower front panel 8, the lower right side panel 9, and the lower left side panel 15, so as to avoid the deformation of the ram body 3 when the ram body 3 is greatly overhanged. In this way, the first embodiment can effectively reduce the thickness of the lower front panel 8, the lower right side panel 9, and the lower left side panel 15 at the lower frame while meeting the high rigidity requirements, and set the process holes and / or weight reduction holes 6 at the upper front panel, the upper right side panel, and the upper left side panel of the upper frame, the lower front panel 8, the lower right side panel 9, and the lower left side panel 15 of the lower frame, and each inner rib plate 7, so as to reduce the weight of the ram body 3 by half. At this time, it can not only reduce the configuration of supporting parts and reduce the production cost of equipment, but also greatly improve the overall dynamic performance of the machine tool.

[0024] In addition, as a preferred embodiment, a central through hole is penetrated in the middle of the transverse rib plate 12, and a pipeline collecting pipe 5 is installed at the central through hole. The edge of the transverse rib plate 12 is penetrated by an edge through hole at the corner. In this way, the edge through hole can be designed as a wiring channel for fixed pipelines in the present embodiment, and the pipeline collecting pipe 5 is designed as a wiring channel for electrical, gas and liquid pipelines that can rotate ±360° with the C-axis, thereby achieving dynamic-static separation of cables and avoiding cable entanglement and damage.

[0025] Embodiment 2 The second embodiment provides a machining center, which includes the light-weight high-speed double-swing head slide body described in the first embodiment, and the double-swing head can be driven to move along the Z axis by the light-weight high-speed double-swing head slide body.

[0026] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0027] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A light-duty high-speed double-swing head ram body, comprising a ram body (3); characterized in that: The ram body (3) comprises an upper frame and a lower frame connected in sequence along a vertical direction, the upper frame comprising an upper front panel, an upper right side panel, an upper rear panel and an upper left side panel which are welded together end to end in sequence, at least one transverse rib plate (12) is arranged in a cavity formed by the upper front panel, the upper right side panel, the upper rear panel and the upper left side panel along the length direction of the upper frame, and inner rib plates (7) are arranged at the angle between the upper front panel and the upper right side panel, the angle between the upper front panel and the upper left side panel, the angle between the upper rear panel and the upper right side panel, and the angle between the upper rear panel and the upper left side panel; the lower frame comprises a lower front panel (8), a lower right side panel (9), a lower rear panel (10) and a lower left side panel (15) which are welded together end to end in sequence, the lower front panel (8 At least one transverse rib plate (12) is arranged in a cavity formed by the lower right side plate (9), the lower rear panel (10) and the lower left side plate (15) along the length direction of the lower frame; inner rib plates (7) are arranged at the angles between the lower front panel (8) and the lower right side plate (9), the angles between the lower front panel (8) and the lower left side plate (15), the angles between the lower rear panel (10) and the lower right side plate (9) and the angles between the lower rear panel (10) and the lower left side plate (15); outer rib plates (14) are arranged on the outer surfaces of the lower front panel (8), the lower right side plate (9) and the lower left side plate (15); the extension direction of the outer rib plates (14) is the same as the length direction of the lower frame; and the length of the outer rib plates (14) is the same as the length of the lower frame.

2. The light-duty high-speed double-swing ram body according to claim 1, characterized in that: The lower rear panel (10) and the upper rear panel are an integral piece.

3. The light-duty high-speed double-swing ram body according to claim 1, characterized in that: The edge of the transverse rib plate (12) is penetrated by an edge through hole, the middle of the transverse rib plate (12) is penetrated by a central through hole, and a pipeline collection pipe (5) is installed in the central through hole.

4. The light-duty high-speed double-swing ram body according to claim 1, characterized in that: The upper left side plate is provided with a balancing cylinder base plate (13).

5. The light-duty high-speed double-swing ram body according to claim 1, characterized in that: A grating scale substrate (11) is provided on the outer surface of the lower right side plate (9).

6. The light-duty high-speed double-swing ram body according to claim 1, characterized in that: The upper front panel, upper right panel, upper left panel of the upper frame and the lower front panel (8), lower right panel (9), lower left panel (15) of the lower frame are all provided with process holes and / or weight reduction holes (6).

7. The light-duty high-speed double-swing ram body according to claim 1, characterized in that: The inner rib plate (7) is provided with process holes and / or weight-reducing holes (6).

8. The light-duty high-speed double-swing ram body according to claim 1, characterized in that: A linear motor (1) and a linear guide pair (2) are provided on the rear end surface of the ram body (3).

9. The light-duty high-speed double-swing ram body according to claim 1, characterized in that: A double swing head (4) is rotatably mounted on the lower end of the ram body (3).

10. A machining center, characterized in that: It comprises a light-duty high-speed double-swing head slide body according to any one of claims 1-9.

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