Integral rack

Abstract

The utility model provides an integral machine frame which comprises an upper cover, a base and a cylindrical shell, the upper cover comprises a plurality of top steel plates which are welded into a whole, and a rotary table installation hole used for installing a rotary table is formed in the center of the upper cover; the base comprises a plurality of bottom steel plates which are welded into a whole, and a chip removal hole is formed in the center of the base; the cylindrical shell comprises a plurality of power head supports surrounding a circle in the circumferential direction and side face steel plates connected with the power head supports. Each power head support comprises a first vertical plate, a second vertical plate and a third vertical plate, one side of the upper end and one side of the lower end of each first vertical plate extend to the outer surfaces of the rotary table mounting hole and the chip removal hole and are fixedly connected with the rotary table mounting hole and the chip removal hole, the third vertical plate is arranged between the first vertical plate and the second vertical plate and is fixedly connected with the first vertical plate and the second vertical plate, and the first vertical plate, the second vertical plate and the third vertical plate basically form an I-shaped structure; according to the utility model, the power head bracket and the cylindrical shell are integrated, so that the power head bracket becomes one part of the cylindrical shell, the rigidity of the whole rack is improved, and the weight of the whole rack is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining, in particular to an integral frame. Background Art

[0002] The integral frame is one of the important parts of all machine tools, which is related to the rigidity, stability and life of the entire machine tool. The stability of special machine tools mainly depends on the rigidity of the integral frame. However, the integral frame structure of traditional special machine tools is split, that is, a machine tool equipped with an integral frame can only process parts of one process, and cannot complete the processing of all processes of a part. Therefore, the existing machine tool integral frame structure is simple and has poor rigidity.

[0003] The patent under examination with application number CN116175204A and utility model name "An integral frame" is a multi-station integral frame with multiple power head brackets welded on its side. Although the entire integral frame has high rigidity, it also increases the weight of the entire integral frame. Utility Model Content

[0004] The utility model is dedicated to solving the problems pointed out in the background technology and provides a multi-station integral frame with high rigidity, high quality and light weight.

[0005] One aspect of the utility model provides an integral frame, comprising an upper cover, a base and a cylindrical shell, the three of which form a cylindrical cavity structure, characterized in that:

[0006] The upper cover comprises a plurality of top steel plates welded together, a turntable mounting hole for mounting the turntable is arranged at the center thereof, a plurality of first power head mounting holes are arranged circumferentially on the upper cover outside the turntable mounting hole, and a first power head can be vertically arranged in each of the first power head mounting holes to form a first vertical processing position;

[0007] The base comprises a plurality of bottom steel plates welded together, with a chip removal hole provided at the center thereof;

[0008] The cylindrical shell includes a plurality of power head brackets and side steel plates which are connected to each other and form a circle;

[0009] Each of the power head brackets includes a first vertical plate and a second vertical plate, both of which extend to the outer surfaces of the turntable mounting hole and the chip removal hole and are fixedly connected thereto, and a third vertical plate disposed between the first and second vertical plates and fixedly connected thereto, wherein the first, second and third vertical plates basically form an I-shaped structure;

[0010] The upper ends of the first and second vertical plates are connected to the top steel plate, and the lower ends are connected to the bottom steel plate;

[0011] A second power head mounting hole is arranged on each of the third vertical plates, and a second power head can be transversely arranged in each of the second power head mounting holes to form a transverse processing position; or / and

[0012] A plurality of third power head mounting holes corresponding to the first power head mounting holes or the second power head mounting holes are arranged circumferentially on the base outside the chip removal hole, and a third power head can be vertically arranged in each of the third power head mounting holes to form a second vertical processing position.

[0013] Preferably, the first and second vertical plates are both U-shaped steel plates, and are both opened toward the turntable mounting hole and the chip removal hole.

[0014] Preferably, the top steel plate and the bottom steel plate are both double-layer steel plates including an upper layer and a lower layer of steel plates;

[0015] The upper ends of the first and second vertical plates are connected to the upper and lower steel plates of the top steel plate, and the lower ends are connected to the upper and lower steel plates of the bottom steel plate.

[0016] Preferably, a circle of top water channel is arranged between the upper and lower steel plates of the top steel plate, the upper steel plate of the top steel plate is provided with a top water inlet hole connected to the top water channel, and the lower steel plate is provided with a plurality of top spray holes connected to the top water channel for flushing chips.

[0017] Preferably, the upper ends of the first, second and third vertical plates, the upper and lower steel plates and the top baffle plate arranged between the upper and lower steel plates form a plurality of top water channels, and the upper ends of the first and second vertical plates are provided with top water channel through holes, and the plurality of top water channels are connected through the top water channel through holes.

[0018] Preferably, a circle of bottom water channel is arranged between the upper and lower steel plates of the bottom steel plate, a bottom water inlet hole connected to the bottom water channel is arranged on the side steel plate between the upper and lower steel plates of the bottom steel plate, and a plurality of bottom spray holes connected to the bottom water channel for flushing chips are arranged on the bottom of the cylindrical shell or the upper steel plate of the bottom steel plate.

[0019] Preferably, the lower ends of the first, second and third vertical plates and the upper and lower steel plates and the bottom baffle of the bottom steel plate form a plurality of bottom water channels, and the lower ends of the first and second vertical plates are provided with bottom water channel through holes, and the plurality of bottom water channels are connected through the bottom water channel through holes.

[0020] Preferably, the third vertical plates are double-layer steel plates and are arranged at intervals.

[0021] Preferably, a loading and unloading window for removing and replacing workpieces is provided between two adjacent power head brackets on the cylindrical shell.

[0022] Preferably, the inner surface of the base gradually slopes downward from the outside to the chip removal hole.

[0023] By adopting the above technical solution, the utility model has the following beneficial effects:

[0024] Compared with the prior art, the integrated frame of the utility model has the following beneficial effects:

[0025] 1. Since each power head bracket of the integral frame of the utility model is not directly welded on the outer surface of the cylindrical shell, but is integrated with the cylindrical shell, the upper cover and the base, each power head bracket becomes the load-bearing frame of the upper cover, the base and the cylindrical shell, and is arranged on the force transmission route, the integral frame of the utility model is a combined structure of frame + steel plate, and the existing integral frame is only a steel plate structure. Therefore, the overall support strength of the integral frame of the utility model is high;

[0026] 2. The I-shaped power head bracket makes the power head bracket itself have high support strength;

[0027] 3. Under the condition of meeting the load-bearing rigidity, the overall frame with high supporting strength can be designed to be thinner, so as to reduce the weight. For example, the lower steel plate of the top steel plate (i.e., the inner steel plate), the upper steel plate of the bottom steel plate (i.e., the inner steel plate), and the side steel plate are thinned. After the above design, the weight of the overall frame of the utility model is reduced to 13 tons, which is 3 tons lighter than the existing overall frame.

[0028] 4. The first and second vertical plates are both U-shaped structures, and both have openings facing the turntable mounting hole and the drain hole. The U-shaped first and second vertical plates not only reduce the weight of the frame, but also are designed as an integral structure, not a structure formed by welding. When transmitting force, no stress concentration will occur on the first and second vertical plates; one side of the first and second vertical plates of each power head bracket extends to the turntable mounting hole and the drain hole, so that the forces on the upper cover and the base can be effectively transmitted through the first and second vertical plates as the skeleton.

[0029] 5. Both the upper cover and the base are double-layer steel plate structures, and the upper and lower steel plates of the upper cover and the base are connected to the first and second vertical plates, further increasing the supporting rigidity of the upper cover and the base.

[0030] 6. Both the cover and the base are double-layer steel plate structures, which are respectively provided with water channels, water inlet holes and injection holes. When the water channels are filled with water, they not only cool down the upper cover and the base, but also flush the chips on the processing station and the base through the injection holes.

[0031] 7. When the cutting depth is large in some workstations, the third vertical plate of the power head bracket is set as a double-layer steel plate to enhance the support stiffness.

[0032] 8. The inner surface of the base gradually slopes downward from the periphery to the chip removal hole, which makes it easy for the chips to slide down and be discharged from the chip removal hole automatically. There is no need for special cleaning, nor is there a need for large amounts of water or cutting fluid to flush, thus saving processing costs.

[0033] These and other features, aspects and advantages of the present application will become better understood with reference to the following description.The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] This specification describes the complete and instructive disclosure of the present application, including its best mode of implementation, for those skilled in the art. This specification refers to the accompanying drawings, in which:

[0035] Figure 1 A three-dimensional schematic diagram of an integral frame provided by an embodiment of the utility model;

[0036] Figure 2 A schematic diagram of the structure of an integral frame provided by an embodiment of the utility model after removing the upper steel plate of the upper cover;

[0037] Figure 3 A schematic diagram of the structure of an integral frame provided by an embodiment of the utility model after removing the lower steel plate of the base;

[0038] Figure 4 A schematic structural diagram of an integral frame provided by an embodiment of the utility model, with the portion above the second power head mounting hole removed;

[0039] Figure 5 A schematic diagram of the internal structure of a half of an integral frame provided by an embodiment of the utility model in the vertical direction;

[0040] Figure 6 A finite element analysis displacement deformation color diagram of an integral frame provided in an embodiment of the utility model;

[0041] Figure 7 A finite element analysis displacement deformation gray map of an integral frame provided in an embodiment of the utility model;

[0042] Figure 8 It is a color diagram of displacement deformation of a rack in the prior art by finite element analysis;

[0043] Fig. 9 It is a gray image of displacement deformation of a rack in the prior art by finite element analysis;

[0044] Fig.10 It is a structural schematic diagram of an existing rack;

[0045] Fig.11 The figure is a schematic diagram of the cross-sectional structure of an existing rack.

[0046] Reference numerals:

[0047] 1-Upper cover;

[0048] 11-turntable mounting hole; 12-top steel plate; 13-first power head mounting hole; 14-top water inlet hole; 15-top water channel; 16-top water channel through hole; 17-top spray hole; 18-top baffle;

[0049] 2-cylindrical shell; 21-power head bracket; 22-second power head mounting hole; 23-side steel plate; 24-inspection window; 25-loading and loading window;

[0050] 3-base; 31-chip removal hole; 32-bottom steel plate; 33-third power head mounting hole; 34-bottom water inlet hole; 35-bottom spray hole; 36-bottom water channel; 37-bottom water channel through hole; 38-bottom baffle. DETAILED DESCRIPTION

[0051] Now with reference to the embodiments of the present application in detail, one or more examples of the embodiments of the present application are illustrated in the drawings. Each example is provided for explaining the present application, but not for limiting the present application. In fact, it will be clear to those skilled in the art that various modifications and changes can be made in the present application without departing from the scope or spirit of the present application. For example, the features described or described as a part of an embodiment can be used together with another embodiment to produce another embodiment. Therefore, it is hoped that the present application covers such modifications and changes, which are within the scope of the attached claims and their equivalents. As used in this specification, the terms "first", "second", etc. are used interchangeably to distinguish one component from another component without intending to indicate the position or importance of each component. As used in the specification, unless the context clearly indicates otherwise, the terms "one", "an", "the" and "said" are intended to indicate that there are one or more elements. The terms "include", "comprise" and "have" are intended to be inclusive and mean that there may be other elements in addition to the listed elements.

[0052] Now referring to the drawings, in which the same numerals represent the same elements in all the drawings, the present invention will be further explained below in conjunction with specific embodiments.

[0053] like Figures 1 to 4The utility model provides an integrated frame, which includes an upper cover 1, a base 3 and a cylindrical shell 2, which form a cavity structure with a bottom and a cover. The cylindrical shell 2 is cylindrical, but can also be other shapes, such as a square cylinder or a polygonal cylinder.

[0054] The integral frame is formed by cast iron welding or integral casting, and has high strength and rigidity. The top, side, or / and bottom can support multiple power heads to cut multiple parts to be processed at the same time. All processes of processing multiple parts can be completed on one machine tool, thereby improving processing efficiency.

[0055] like Figure 5 As shown, the upper cover 1 is a steel plate structure welded by multiple top steel plates 12, and a turntable mounting hole 11 is arranged at the center of the upper cover 1. The turntable (not shown) is suspended on the turntable mounting hole 11 in the above-mentioned cavity structure, and a turntable which can rotate in a horizontal plane relative to the turntable is arranged at the lower part of the turntable in the above-mentioned cavity structure, and a plurality of parts to be processed are clamped on the outer surface of the turntable, and the turntable can be driven to rotate in a horizontal plane with the plurality of parts to be processed; a plurality of first power head mounting holes 13 are circumferentially arranged on the upper cover 1 outside the turntable mounting hole 11, and a first power head (not shown) can be vertically arranged in each of the first power head mounting holes 13, and different tools can be installed on each first power head according to actual working conditions, so that each first power head forms a first vertical processing position, and the turntable rotates to each first vertical processing position with the plurality of parts to be processed so as to perform cutting processing of different processes on the top or upper surface of the parts to be processed rotated to the processing position. After a part to be processed passes through all the first vertical processing positions, all processes of the top or upper surface of the part to be processed are completed. This cycle is repeated. The machine tool composed of the integral frame can process the tops or upper surfaces of multiple parts at the same time, thereby improving the processing efficiency.

[0056] like Figure 5 As shown, the base 3 is also a steel plate structure welded by multiple bottom steel plates 32, and a chip discharge hole 31 for discharging chips is arranged in the center. In order to facilitate chip discharge, the inner surface of the base 3 is arranged to gradually tilt downward from the outside to the center until the chip discharge hole 31. The chips generated during the processing fall onto the base 3 and automatically slide downward and then are discharged from the chip discharge hole 31. In addition, during actual installation and use, a support frame (not shown) is also arranged at the bottom of the overall frame to facilitate the arrangement of a chip collection bag at the bottom of the chip discharge hole 31, so that there is no need to install a scraping device, no need for a dedicated person to clean the chips in the overall frame, and no need to use a large amount of water and cutting fluid for heavy washing, saving a lot of manpower and financial resources.

[0057] Power head bracket 21 of the rack

[0058] like Fig.10As shown in FIG. 1 , an existing integral frame is also provided, which also includes a cavity structure with a bottom and a cover formed by an upper cover 1, a base 3 and a cylindrical shell 2. However, since the side surface needs to support multiple power heads to process the side surface of the workpiece, the power heads need to be supported by a power head bracket 21, such as Fig.10 The power head bracket 21 shown is directly welded to the outer surface of the cylindrical shell 2. Although the overall frame has high rigidity, this structure undoubtedly makes the overall frame structure relatively large and heavy.

[0059] For this reason, the power head bracket 21 of the integral frame provided by the utility model is not directly welded to the outside of the cylindrical shell 2, but is integrated with the cylindrical shell 2, which not only reduces the weight of the integral frame, but also improves the rigidity of the integral frame.

[0060] like Figure 1-5 As shown, the cylindrical shell 2 of the integral frame provided by the utility model is formed by connecting a plurality of power head brackets 21 and side steel plates 23 alternately to form a circle circumferentially, and each power head bracket 21 includes a first vertical plate 211 and a second vertical plate 213 which extend to the outer surfaces of the turntable mounting hole 11 and the chip removal hole 31 on one side of the upper and lower ends and are fixedly connected thereto, and a third vertical plate 212 which is arranged between the first and second vertical plates 211, 213 and is fixedly connected thereto, and the first vertical plate 211 to the third vertical plate 212 basically constitute an I-shaped structure.

[0061] However, the first power head mounting hole 13 on the upper cover 1 of the integral frame of the utility model has different installation height requirements for the first power head (not shown) due to different workstations. Therefore, the height of the first power head mounting hole 13 set on the upper cover 1 is also different. Therefore, the top steel plate 12 on the upper cover 1 cannot be set as an integral steel plate. The height of the top steel plate 12 must be set separately according to the requirements of different workstations. The utility model disperses the top steel plate 12 into different blocks.

[0062] Some workpieces also need to be processed on the bottom surface. For this purpose, a plurality of third power head mounting holes 33 corresponding to the first power head mounting holes 13 or the second power head mounting holes 22 are arranged circumferentially on the base 3 outside the chip removal hole 31. A third power head can be installed in each third power head mounting hole 33 to form a second vertical processing position. Similarly, different tools can be installed on each third power head to meet the needs of different processing procedures for the bottom surface of the processed parts. After the workpiece to be processed is processed by the tools on all the third power heads, all the bottom surface processing procedures are completed. For the same reason as the upper cover 1, the bottom steel plate 32 is also set to multiple pieces.

[0063] In order to increase the rigidity of the whole frame, the top steel plate 12 and the bottom steel plate 32 are double-layer steel plates including upper and lower steel plates, and the upper ends of the first and second vertical plates 211, 213 are respectively connected to the upper and lower steel plates of the top steel plate 12 of the upper cover 1, and the lower ends of the first and second vertical plates 211, 213 are respectively connected to the upper and lower steel plates of the bottom steel plate 32 of the base 3. Instead of only the lower steel plate of the top steel plate 12 and the upper steel plate of the bottom steel plate 32 being fixedly connected to the first and second vertical plates 211, 213, the overall support rigidity of the upper cover 1 and the base 3 is increased.

[0064] In this way, the first and second vertical plates 211, 213 of each power head bracket are connected to the upper and lower layers of the upper cover 1 and the base 3, and the horizontally extending parts of the first and second vertical plates 211, 213 of each power head bracket constitute the component skeleton of the upper cover 1 and the base 3. The turntable suspended in the turntable mounting hole 11 and the power head arranged on the upper cover 1 exert forces on the upper cover 1 directly and indirectly to the horizontally extending parts of the first and second vertical plates 211, 213, respectively, and then are transmitted along the vertical parts of the first and second vertical plates 211, 213; similarly, the force exerted by the power head arranged on the base 3 on the base 3 is transmitted to the horizontally extending parts of the first and second vertical plates 211, 213 through the bottom steel plate 32, and then is transmitted along the vertical parts of the first and second vertical plates 211, 213, that is, the first and second vertical plates 211, 213 of each power head bracket are arranged on the force transmission route, and are the skeletons that bear the force. Thereby, the rigidity of the upper cover 1 and the base 3 of the whole frame is enhanced. In addition, the thickness of the steel plates on the upper cover 1 and the base 3 can be reduced while satisfying the rigidity requirements.

[0065] In order to reduce the weight of the first and second vertical plates 211 , 213 , the first and second vertical plates 211 , 213 are both configured as U-shaped steel plates, and the U-shaped openings are both configured toward the turntable mounting hole 11 and the chip removal hole 31 .

[0066] In order to meet the processing requirements of different parts, such as the need to process the side of the part, it is necessary to install multiple second power heads (not shown) circumferentially on the outer surface of the cylindrical shell 2. In order to support the second power head set on the cylindrical shell 2, a second power head mounting hole 22 is also provided on each third vertical plate 212. A second power head is transversely arranged in each second power head mounting hole 22 to form a transverse processing position. Different tools can also be installed on each second power head according to the actual working conditions of the part. After the part to be processed is processed by the tools on all the second power heads, all the processes on the side can be completed. Multiple workpieces to be processed are arranged on the outside of the turntable. Each workpiece to be processed is circulated through multiple second power heads to complete all the processes on the side, thereby improving the processing efficiency of the parts to be processed.

[0067] When the first power head mounting hole 13, the second power head mounting hole 22 and the third power head mounting hole 33 are simultaneously arranged on the integral frame, the first to third power heads are correspondingly arranged in the first power head mounting hole 13, the second power head mounting hole 22 and the third power head mounting hole 33, respectively, thereby forming a plurality of composite processing positions, which can process the top surface, side surface and bottom surface of the workpiece at the same time, thereby greatly enhancing the processing efficiency.

[0068] An inspection window 24 for inspecting equipment and replacing tools is also provided between two adjacent power head brackets 21 on the cylindrical housing 2 .

[0069] A loading and unloading window 25 for removing a processed workpiece and replacing it with a new workpiece to be processed is also provided between two adjacent power head brackets 21 on the cylindrical housing 2 .

[0070] like Fig.10 and Fig.11 As shown, the existing integral frame cited in the background technology, the power head bracket 21 of the existing integral frame is directly welded on the outer surface of the cylindrical shell 2, and the power head bracket 21 is not connected to the upper cover 1 and the base 3, so the power head bracket 21 does not become a component skeleton of the cylindrical shell 2, nor does it become a component skeleton of the upper cover 1 and the base 3. Because there is no skeleton such as "first and second vertical plates 211, 213" on the upper cover 1 and the base 3 of the existing integral frame, the turntable and turntable suspended in the turntable mounting hole 11, the cutting force generated during the processing, and the force generated by the power head set on the upper cover 1 are directly applied to the upper cover 1, and most of the gravity is borne by the upper cover 1, and only a small part of the force is transmitted to the cylindrical shell 2 through the upper cover 1. Therefore, in order to meet the bending strength, the upper cover 1 of the integral frame cited in the background technology needs to be set thicker, which makes the weight of the integral frame heavier.

[0071] In the present invention, the upper and lower ends of the first and second vertical plates 211, 213 of each power head bracket 21 are respectively extended to the turntable mounting hole 11 and the drain hole 31, and the upper and lower steel plates of the top steel plate 12 and the bottom steel plate 32 are respectively welded to the horizontal extension parts of the first and second vertical plates 211, 213; the side steel plate 23 is welded to the first and second vertical plates 211, 213 of each power head bracket 21, so the first and second vertical plates 211, 213 of each power head bracket 21 not only become the skeleton of the cylindrical shell 2, but also become the upper cover The skeleton of the upper cover 1 and the base 3 becomes the transmission route of the forces on the upper cover 1, the base 3 and the cylindrical shell 2; and the overall U-shaped structural design of the first and second vertical plates 211, 213 does not require welding and does not produce stress concentration, which facilitates the effective transmission of the forces on the upper cover 1, the base 3 and the cylindrical shell 2; the cylindrical shell 2 is connected by a plurality of I-shaped power head brackets 21, and the support strength of the I-shaped power head bracket 21 is higher than that of the ordinary vertical plate, so the cylindrical shell 2 composed of a plurality of I-shaped power head brackets 21 has a high support strength. Therefore, the overall support rigidity of the integral frame of the utility model is high.

[0072] In summary, compared with the existing integral frame, the integral frame of the utility model has the following advantages:

[0073] 1. Since each power head bracket 21 of the integral frame of the utility model becomes the load-bearing frame of the upper cover 1, the base 3 and the cylindrical shell 2, and is arranged on the force transmission route, the integral frame of the utility model is a combined structure of frame + steel plate, and the existing integral frame is only a steel plate structure. Therefore, the integral frame of the utility model has high overall support strength;

[0074] 2. The I-shaped power head bracket makes the power head bracket itself have high support strength;

[0075] 3. Under the condition of meeting the load-bearing rigidity, the overall frame with high supporting strength can be designed to be thinner, so as to reduce the weight. For example, the lower steel plate (i.e., inner steel plate) of the top steel plate 12, the upper steel plate (i.e., inner steel plate) of the bottom steel plate 32, and the side steel plate 23 are thinned. After the above design, the weight of the overall frame of the utility model is reduced to 13 tons, which is 3 tons lighter than the existing overall frame.

[0076] Figure 6 and 7 This is a finite element analysis force deformation result diagram of the integral frame of the utility model after the force and constraint conditions are applied. Figure 8 and 9This is a finite element analysis force-deformation result diagram of the existing integral frame after the same force and the same constraint conditions are applied. After comparison, it is found that under the same force and constraint conditions, the maximum bending deformation of the integral frame of the utility model and the existing integral frame is only 0.05598mm, and the maximum bending deformation of the existing integral frame is only 0.07819mm. However, the integral frame of the utility model is 3 tons lighter than the existing integral frame.

[0077] Rack top water channel

[0078] Since multiple workpieces and multiple stations are processed, the entire frame is in a closed state during processing. In order to cool the entire frame and the workpieces to be processed and the tools therein and flush the chips, a circle of top water channels is set between the upper and lower steel plates in the upper cover 1. Therefore, a top water inlet 14 connected to the top water channel is set on the upper steel plate of the upper cover 1. Since the upper ends of each of the first and second vertical plates 211, 213 are connected to the upper and lower steel plates of the top steel plate 12, the water channel is blocked by each of the first and second vertical plates 211, 213. In order to prevent the water in the upper cover 1 from affecting the installation of the first power head, a top baffle 18 is set between each of the first and second vertical plates 211, 213 and between the upper and lower steel plates of the upper cover 1, so that the first and second vertical plates 211, 213, the upper and lower steel plates of the upper cover 1 and the top baffle form a top water channel 15. In order to achieve water channel communication, a top water channel through hole 16 is provided at the upper end of each of the first and second vertical plates 211 , 213 , so that multiple water channels are connected through the top water channel through hole 16 .

[0079] A plurality of top spray holes 17 are arranged on the lower steel plate in each top water channel 15, and the top spray holes 17 are connected to a water spray pipe, and the water in the water channel is sprayed onto the tool to wash away the chips generated by processing. Therefore, the water in the water channel can cool the upper cover 1 on the one hand, and on the other hand, it can be sprayed onto the cutting tool through the water spray pipe to cool the tool and wash away the chips.

[0080] Bottom water channel of the rack

[0081] After the chips are washed onto the base 3, in order to smoothly discharge the chips through the chip discharge hole 31, a circle of bottom water channels is also set between the upper and lower steel plates of the bottom steel plate 32, and for this purpose, a bottom water inlet hole 34 connected to the bottom water channel is set on the side of the base 3. Since the lower end of each of the first and second vertical plates 211, 213 is connected to the upper and lower steel plates of the bottom steel plate 32, the bottom water channel is blocked by the first and second vertical plates 211, 213 of the power head bracket 21. In order to prevent the water in the base 3 from being discharged from the chip discharge hole 31, a bottom baffle 38 is set between the upper and lower steel plates of the base 3 between each of the first and second vertical plates 211, 213, so that each of the first and second vertical plates 211, 213, the upper and lower steel plates of the base 3 and the bottom baffle 38 form a bottom water channel 36.

[0082] In order to connect the multiple bottom water channels 36 , bottom water channel through holes 37 are respectively provided on the first and second vertical plates 211 , 213 , and the multiple bottom water channels are connected through the bottom water channel through holes 37 .

[0083] In order to spray the water in the bottom water channel into the whole frame to flush the chips on the base 3, a bottom spray hole 35 connected to the bottom water channel is provided on the side surface of the cylindrical shell 2 (i.e., the third vertical plate) corresponding to each bottom water channel. The bottom spray hole 35 connects the water spray pipe to the inner surface of the base 3. The water in the bottom water channel can cool the base 3 on the one hand, and on the other hand, the chips on the inner surface of the base 3 can be smoothly flushed out through the drainage hole 31 through the water spray pipe.

[0084] In some embodiments, the bottom spray holes may also be disposed on the upper steel plate within each bottom water channel.

[0085] Some of the workstations where the power head is arranged on the cylindrical shell 2 need to perform deep cutting on the workpiece, so the required feed cutting force is relatively large and the power head needs to be kept stable. Therefore, the power head bracket 21 supporting the power head needs to be more stable. For this purpose, the third vertical plate 212 is set to a double-layer structure to increase the contact area of ​​the power head and make the power head more stable in the axial length direction.

[0086] Preferably, the double layers of the third vertical plate 212 are spaced apart.

[0087] Preferably, the third vertical plate 212 is configured as a multi-layer structure.

[0088] If the first to third power head mounting holes 13, 22, and 33 are provided on the integral frame at the same time, and the first to third power heads can be installed respectively, the first to third power heads thus form a composite processing position, and the upper surface, side surface, and bottom surface of the workpiece to be processed can be processed simultaneously. Multiple workpieces to be processed are installed on the periphery of the turntable, and the turntable is driven by the turntable driving component to rotate with the multiple workpieces to be processed in the horizontal plane, so that the workpieces to be processed are rotated to the first to third power heads on each composite processing position for cutting. On such a multi-part multi-station processing machine tool, all processes of the workpieces to be processed can be completed because of the power heads with multiple directions, which greatly improves the processing efficiency.

[0089] The number of the first power head mounting hole 13, the second power head mounting hole 22 or the third power head mounting hole 33 is 10, which can also be increased to 12 according to the processing situation. Of course, the number of the first to third power head mounting holes can also be set according to the actual processing needs, and there is no limit to their number here. It can be known to those skilled in the art that the more the number of the first to third power head mounting holes is set, the more machine tool processing stations composed of the integral frame, and the more workpieces to be processed are set on the turntable equipped therewith, that is, the processing efficiency of the processing machine tool is higher.

[0090] Compared with the prior art, the integrated frame of the utility model has the following beneficial effects:

[0091] 1. Since each power head bracket 21 of the integral frame of the utility model is not directly welded on the outer surface of the cylindrical shell, but is integrated with the cylindrical shell, the upper cover and the base, each power head bracket 21 becomes the load-bearing frame of the upper cover 1, the base 3 and the cylindrical shell 2, and is arranged on the force transmission route, the integral frame of the utility model is a combined structure of frame + steel plate, and the existing integral frame is only a steel plate structure. Therefore, the overall support strength of the integral frame of the utility model is high;

[0092] 2. The I-shaped power head bracket makes the power head bracket itself have high support strength;

[0093] 3. Under the condition of meeting the load-bearing rigidity, the overall frame with high supporting strength can be designed to be thinner, so as to reduce the weight. For example, the lower steel plate (i.e., inner steel plate) of the top steel plate 12, the upper steel plate (i.e., inner steel plate) of the bottom steel plate 32, and the side steel plate 23 are thinned. After the above design, the weight of the overall frame of the utility model is reduced to 13 tons, which is 3 tons lighter than the existing overall frame.

[0094] 4. The first and second vertical plates are both U-shaped structures, and both have openings facing the turntable mounting hole 11 and the drain hole 31. The U-shaped first and second vertical plates not only reduce the weight of the frame, but also are designed as an integral structure, not a structure formed by welding. When transmitting force, no stress concentration will occur on the first and second vertical plates; one side of the first and second vertical plates of each power head bracket 21 extends to the turntable mounting hole 11 and the drain hole 31, so that the forces on the upper cover and the base are effectively transmitted through the first and second vertical plates as the skeleton.

[0095] 5. Both the upper cover and the base are double-layer steel plate structures, and the upper and lower steel plates of the upper cover and the base are connected to the first and second vertical plates, further increasing the supporting rigidity of the upper cover and the base.

[0096] 6. Both the cover and the base are double-layer steel plate structures, which are respectively provided with water channels, water inlet holes and injection holes. When the water channels are filled with water, they not only cool down the upper cover and the base, but also flush the chips on the processing station and the base through the injection holes.

[0097] 7. When the cutting depth is large in some workstations, the third vertical plate of the power head bracket is set as a double-layer steel plate to enhance the support stiffness.

[0098] 8. The inner surface of the base gradually slopes downward from the periphery to the chip removal hole, which makes it easy for the chips to slide down and be discharged from the chip removal hole automatically. There is no need for special cleaning, nor is there a need for large amounts of water or cutting fluid to flush, thus saving processing costs.

[0099] This description uses examples to disclose the present application, including the best embodiment, and also to enable those skilled in the art to practice the present application, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the present application is defined by the claims, and may include other embodiments that occur to those skilled in the art. Such other embodiments are intended to be within the scope of the claims if they include structural elements that are not different from the literal language of the claims, or if they include equivalent structural elements that are not substantially different from the literal language of the claims.

Claims

1. An integral frame, comprising an upper cover (1), a base (3) and a cylindrical shell (2), the three forming a cylindrical cavity structure, characterized in that: The upper cover (1) comprises a plurality of top steel plates (12) welded together, a turntable mounting hole (11) for mounting a turntable is arranged at the center thereof, a plurality of first power head mounting holes (13) are arranged circumferentially on the upper cover (1) outside the turntable mounting hole (11), and a first power head can be vertically arranged in each of the first power head mounting holes (13) to form a first vertical processing position; The base (3) comprises a plurality of bottom steel plates (32) welded together, with a chip removal hole (31) provided at the center thereof; The cylindrical housing (2) comprises a plurality of power head brackets (21) and side steel plates (23) which are connected to each other and form a circle; Each of the power head brackets (21) comprises a first vertical plate (211) and a second vertical plate (213) both of which extend to the outer surfaces of the turntable mounting hole (11) and the chip removal hole (31) and are fixedly connected thereto, and a third vertical plate (212) disposed between the first vertical plate (211) and the second vertical plate (213) and fixedly connected thereto, wherein the first vertical plate (211), the second vertical plate (213) and the third vertical plate (212) basically form an I-shaped structure; The upper ends of the first vertical plate (211) and the second vertical plate (213) are connected to the top steel plate (12), and the lower ends are connected to the bottom steel plate (32); A second power head mounting hole (22) is provided on each of the third vertical plates (212), and a second power head can be transversely arranged in each of the second power head mounting holes (22) to form a transverse processing position; or / and A plurality of third power head mounting holes (33) corresponding one to one with the first power head mounting holes (13) or the second power head mounting holes (22) are circumferentially arranged on the base (3) outside the chip removal hole (31), and a third power head can be vertically arranged in each of the third power head mounting holes (33) to form a second vertical processing position.

2. The integral frame according to claim 1, characterized in that: The first vertical plate (211) and the second vertical plate (213) are both U-shaped steel plates, and are both opened toward the turntable mounting hole (11) and the chip removal hole (31).

3. The integral frame according to claim 2, characterized in that: The top steel plate (12) and the bottom steel plate (32) are both double-layer steel plates including an upper layer and a lower layer of steel plates; The upper ends of the first vertical plate (211) and the second vertical plate (213) are connected to the upper and lower steel plates of the top steel plate (12), and the lower ends are connected to the upper and lower steel plates of the bottom steel plate (32).

4. The integral frame according to claim 3, characterized in that: A circle of top water channel is arranged between the upper and lower steel plates of the top steel plate (12); a top water inlet hole (14) connected to the top water channel is arranged on the upper steel plate of the top steel plate (12); and a plurality of top spray holes (17) connected to the top water channel for flushing chips are arranged on the lower steel plate.

5. The integral frame according to claim 4, characterized in that: The upper ends of the first plurality of vertical plates (211), the second plurality of vertical plates (213), and the third plurality of vertical plates (212), the upper and lower steel plates, and a top baffle (18) disposed between the upper and lower steel plates form a plurality of top water channels (15); the upper ends of the first plurality of vertical plates (211) and the second plurality of vertical plates (213) are provided with top water channel through holes (16); and the plurality of top water channels (15) are connected via the top water channel through holes (16).

6. The integral frame according to any one of claims 3 to 5, characterized in that: A circle of bottom water channel is arranged between the upper and lower steel plates of the bottom steel plate (32); a bottom water inlet hole (34) connected to the bottom water channel is arranged on the side steel plate between the upper and lower steel plates of the bottom steel plate (32); and a plurality of bottom spray holes (35) connected to the bottom water channel for flushing chips are arranged at the bottom of the cylindrical shell (2) or on the upper steel plate of the bottom steel plate (32).

7. The integral frame according to claim 6, characterized in that: The lower ends of the first vertical plates (211), the second vertical plates (213), and the third vertical plates (212) and the upper and lower steel plates of the bottom steel plate (32) and the bottom baffle plate (38) form a plurality of bottom water channels (36); the lower ends of the first vertical plates (211) and the second vertical plates (213) are provided with bottom water channel through holes (37); and the plurality of bottom water channels (36) are connected through the bottom water channel through holes (37).

8. The integral frame according to claim 1, characterized in that: The third vertical plate (212) is a double-layer steel plate and is arranged at intervals.

9. The integral frame according to claim 1, characterized in that: A loading and unloading window (25) for removing and replacing workpieces is also provided between two adjacent power head brackets (21) on the cylindrical housing (2).

10. The integral frame according to claim 1, characterized in that: The inner surface of the base (3) gradually slopes downward from the outside to the chip removal hole (31).

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