Double-cutter type machining center

Abstract

The utility model relates to a double-cutter type machining center which comprises a base, a bearing table and a turn-milling device. The bearing table is arranged on the base; the turn-milling device is arranged on the outer side of the bearing table and comprises a driving mechanism and a spindle box. The driving mechanism is connected to the base; the spindle box comprises a box body, a rough milling cutter shaft, a fine milling cutter shaft, a rotary driver and a transverse moving driving part, the box body is installed at the output end of the driving mechanism, the rough milling cutter shaft and the fine milling cutter shaft are both rotationally arranged in the box body, the rotary driver is installed on the box body, and the transverse moving driving part is installed on the box body. The transverse moving driving part is mounted on the box body and used for driving the rough milling cutter shaft and the fine milling cutter shaft to rotate, and the transverse moving driving part is mounted on the box body and used for driving the rough milling cutter shaft to move. The numerical control machining center solves the problem that the machining efficiency is too low due to the fact that an existing numerical control machining center consumes too much time to switch from a rough milling cutter shaft to a fine milling cutter shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control processing equipment, in particular to a double-knife type processing center. Background Art

[0002] With the development of science and technology, CNC technology has been widely used, and the technical field has been continuously improved. High-efficiency automated machine tools composed of mechanical equipment and CNC systems suitable for processing complex parts have become one of the most productive and widely used CNC machine tools in the world. It has strong comprehensive processing capabilities, and can complete more processing content after the workpiece is clamped once, with high processing accuracy. For batch workpieces with medium processing difficulty, its efficiency is 5 to 10 times that of ordinary equipment. In particular, it can complete many processing that ordinary equipment cannot complete, and is more suitable for single-piece processing with complex shapes and high precision requirements or small and medium-sized batch multi-variety production. It concentrates the functions of milling, boring, drilling, tapping and thread cutting on one device, so that it has multiple process means.

[0003] Refer to the utility model patent with publication number CN213615283U, which discloses an arbitrary angle processing device, which drives the cutter head to rotate at high speed through a driving member to achieve the processing of the workpiece. With the development of science and technology, the precision requirements for workpieces are getting higher and higher. When processing workpieces, it is usually necessary to use a rough milling cutter for rough milling and then change to a fine milling cutter for fine milling. However, the tool change work is too time-consuming, resulting in too low processing efficiency.

[0004] Therefore, it is necessary to provide a technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that the existing CNC machining center consumes too much time to switch from a rough milling cutter axis to a fine milling cutter axis, resulting in excessively low machining efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides a double-tool machining center, including a base, a bearing platform and a turning and milling device, wherein:

[0007] The bearing platform is arranged on the base;

[0008] The turning and milling device is arranged on the outer side of the supporting platform, and includes a driving mechanism and a spindle box; the driving mechanism is connected to the base; the spindle box includes a box body, a rough milling cutter shaft, a fine milling cutter shaft, a rotary driver and a transverse driving member, the box body is installed on the output end of the driving mechanism, the rough milling cutter shaft and the fine milling cutter shaft are both rotatably arranged in the box body, the rotary driver is installed on the box body, and is used to drive the rough milling cutter shaft and the fine milling cutter shaft to rotate, and the transverse driving member is installed on the box body, and is used to drive the rough milling cutter shaft to move.

[0009] More specifically, the turning and milling devices are provided with two groups, and the two groups of the turning and milling devices are respectively arranged on both sides of the supporting platform.

[0010] More specifically, the fine milling cutter shaft is in a circular ring shape and is disposed at one end of the box body close to the supporting platform; the rough milling cutter shaft passes through the middle of the fine milling cutter shaft.

[0011] More specifically, a gear ring is provided on the side of the rough milling cutter shaft close to the housing; a gear assembly is also provided on the housing, and the gear assembly includes a first telescopic drive, a rotating shaft and a gear. The rotating shaft is rotatably connected to the housing and is controlled to rotate by the rotary drive. The gear is installed at the end of the rotating shaft. The first telescopic drive is fixedly connected to the housing, and is used to drive the rotating shaft to move so that the gear and the gear ring are switched between an engaged state and a staggered state.

[0012] More specifically, a positioning assembly is provided on the spindle box; the positioning assembly includes a second telescopic driver and a push block, the second telescopic driver is fixedly connected to the box body, and the push block is installed on the output end of the second telescopic driver.

[0013] More specifically, a cooling pipe is provided on the outer side of the rough milling cutter shaft, and the cooling pipe is installed on the spindle box.

[0014] More specifically, an X-axis driving assembly is installed on the base, and the supporting platform is slidably connected to the base, and is controlled by the X-axis driving assembly to move along the X-axis direction.

[0015] More specifically, a gantry is installed on the bearing platform, and a top pressure assembly is installed on the gantry.

[0016] More specifically, the driving mechanism includes a Y-axis driving component, a column and a Z-axis driving component; the Y-axis driving component is installed on the base; the column is slidably connected to the base, and is controlled by the Y-axis driving component to move along the Y-axis direction; the Z-axis driving component is installed on the column; the spindle box is slidably connected to the column, and is controlled by the Z-axis driving component to move along the Z-axis direction.

[0017] More specifically, a counterweight assembly is installed on the column; the counterweight assembly includes a roller, a belt and a counterweight block, the roller is installed on the top of the column, the middle part of the belt is wrapped around the roller, and one end of the belt is fixedly connected to the spindle box, and the other end is fixedly connected to the counterweight block.

[0018] The technical effects of a double-knife machining center involved in the utility model are:

[0019] The present application uses a reasonable structural setting to allow the spindle box to be equipped with a rough milling cutter shaft and a fine milling cutter shaft at the same time; when the workpiece is being processed, the rough milling cutter shaft first performs rough milling on the workpiece, and then the traverse drive member drives the rough milling cutter shaft to retract, and the fine milling cutter shaft can perform fine milling on the workpiece, thereby producing a high-precision product. The design of the present application eliminates the need for tool change during workpiece processing, thereby shortening the workpiece processing cycle and greatly improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a double-knife type machining center involved in the utility model;

[0021] Figure 2 It is a structural schematic diagram of a turning and milling device in a double-knife machining center involved in the utility model;

[0022] Figure 3 It is a structural schematic diagram of a spindle box in a double-knife type machining center involved in the utility model;

[0023] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0024] Markings in the figure:

[0025] 1. Base; 2. Carrying platform; 3. Turning and milling device;

[0026] 21. Gantry; 22. Top pressure assembly;

[0027] 31. Driving mechanism; 311. Column; 312. Z-axis driving assembly; 313. Counterweight assembly; 32. Spindle box; 321. Box body; 322. Rough milling cutter shaft; 323. Fine milling cutter shaft; 3231. Gear ring; 324. Rotary drive; 325. Transverse drive member; 326. Shift assembly; 3261. First telescopic drive; 3262. Rotating shaft; 3263. Gear; 327. Positioning assembly. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element at the same time; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the embodiments of the present invention, it should be understood that the directions or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] In order to more clearly illustrate the technical solution of the utility model, a preferred embodiment is provided below. Figure 1 to Figure 4 , a double-tool machining center, comprising a base 1, a bearing platform 2 and a turning and milling device 3, wherein:

[0033] The carrying platform 2 is arranged on the base 1;

[0034] The turning and milling device 3 is arranged on the outer side of the supporting platform 2, and includes a driving mechanism 31 and a spindle box 32; the driving mechanism 31 is connected to the base 1; the spindle box 32 includes a box body 321, a rough milling cutter shaft 322, a fine milling cutter shaft 323, a rotary driver 324 and a transverse driving member 325, the box body 321 is installed on the output end of the driving mechanism 31, the rough milling cutter shaft 322 and the fine milling cutter shaft 323 are both rotatably arranged in the box body 321, the rotary driver 324 is installed on the box body 321, and is used to drive the rough milling cutter shaft 322 and the fine milling cutter shaft 323 to rotate, and the transverse driving member 325 is installed on the box body 321, and is used to drive the rough milling cutter shaft 322 to move.

[0035] Compared with the prior art, the double-cutter machining center involved in the utility model is different in that a rough milling cutter shaft 322 and a fine milling cutter shaft 323 can be simultaneously provided on the spindle box 32 of the present application; when the workpiece is being machined, the rough milling cutter shaft 322 first performs rough milling on the workpiece, and then the traverse drive member 325 drives the rough milling cutter shaft 322 to retract, and the fine milling cutter shaft 323 can perform fine milling on the workpiece, thereby producing a high-precision product. The design of the present application eliminates the need for tool change during the workpiece machining process, thereby shortening the machining cycle of the workpiece and greatly improving the machining efficiency.

[0036] In this embodiment, two groups of milling devices 3 are provided, and the two groups of milling devices 3 are respectively arranged on both sides of the support platform 2. In actual application, the two groups of milling devices 3 process two sides of the workpiece at the same time, doubling the processing efficiency.

[0037] In this embodiment, the fine milling cutter shaft 323 is annular and is disposed at one end of the box body 321 close to the carrier 2; the rough milling cutter shaft 322 runs through the middle of the fine milling cutter shaft 323. The above-mentioned design of arranging the fine milling cutter shaft 323 and the rough milling cutter shaft 322 to be distributed inside and outside can make the fine milling cutter shaft 323 maintain strong stability during rotation, while making more reasonable use of the space of the box body 321.

[0038] In this embodiment, a gear ring 3231 is provided on one side of the rough milling cutter shaft 322 close to the box body 321; a gear assembly 326 is also provided on the box body 321, and the gear assembly 326 includes a first telescopic driver 3261, a rotating shaft 3262 and a gear 3263. The rotating shaft 3262 is rotatably connected in the box body 321, and its rotation is controlled by the rotary driver 324. The gear 3263 is installed at the end of the rotating shaft 3262. The first telescopic driver 3261 is fixedly connected to the box body 321, and is used to drive the rotating shaft 3262 to move so that the gear 3263 and the gear ring 3231 are switched between a meshing state and a staggered state. Specifically, when performing rough milling, the end of the rough milling cutter shaft 322 extends to the front side of the fine milling cutter shaft 323. At this time, the rotating shaft 3262 can be driven to move by the first telescopic driver 3261, so that the gear 3263 and the gear ring 3231 are offset, and the fine milling cutter shaft 323 stops rotating, thereby improving the stability of the box 321 and reducing the vibration amplitude of the rough milling cutter shaft 322, thereby improving the quality of the rough milling process.

[0039] In this embodiment, a positioning assembly 327 is provided on the spindle box 32; the positioning assembly 327 includes a second telescopic driver and a push block, the second telescopic driver is fixedly connected to the box body 321, and the push block is installed on the output end of the second telescopic driver. In actual application, the positioning assemblies 327 on the two turning and milling devices 3 cooperate to clamp and position the workpiece, thereby improving the quality of subsequent turning and milling processing of the workpiece.

[0040] In this embodiment, a cooling pipe is provided on the outer side of the rough milling cutter shaft 322, and the cooling pipe is installed on the spindle box 32. In actual application, condensed water is sprayed to the rough milling cutter shaft 322 or the fine milling cutter shaft 323 through the cooling pipe to reduce the risk of tool breakage due to excessive temperature.

[0041] In this embodiment, an X-axis driving assembly is installed on the base 1, and the carrier 2 is slidably connected to the base 1, and is controlled by the X-axis driving assembly to move along the X-axis direction. In actual application, the X-axis driving assembly drives the carrier 2 to move, thereby adjusting the position of the workpiece so that the rough milling cutter shaft 322 and the fine milling cutter shaft 323 can fully process the workpiece.

[0042] In this embodiment, a gantry 21 is installed on the carrying platform 2, and a pressing assembly 22 is installed on the gantry 21. In actual application, the pressing assembly 22 applies pressure to the workpiece on the carrying platform 2, so that the workpiece on the carrying platform 2 is fixed.

[0043] In this embodiment, the driving mechanism 31 includes a Y-axis driving assembly, a column 311 and a Z-axis driving assembly 312; the Y-axis driving assembly is installed on the base 1; the column 311 is slidably connected to the base 1, and is controlled by the Y-axis driving assembly to move along the Y-axis direction; the Z-axis driving assembly 312 is installed on the column 311; the spindle box 32 is slidably connected to the column 311, and is controlled by the Z-axis driving assembly 312 to move along the Z-axis direction. In actual application, the spindle box 32 is controlled to move along the Y-axis direction and the Z-axis direction by the Y-axis driving assembly and the Z-axis driving assembly 312, so that the roughing cutter shaft 322 and the finishing cutter shaft 323 can fully process the workpiece.

[0044] In this embodiment, a counterweight assembly 313 is installed on the column 311; the counterweight assembly 313 includes a roller, a belt and a counterweight block. The roller is installed on the top of the column 311, and the middle part of the belt is wound around the roller, and one end of the belt is fixedly connected to the spindle box 32, and the other end is fixedly connected to the counterweight block. The above design improves the stability of the spindle box 32 when it moves up and down.

[0045] The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-knife machining center, characterized in that: It includes a base, a bearing platform and a turning and milling device, wherein: The bearing platform is arranged on the base; The turning and milling device is arranged on the outer side of the supporting platform, and includes a driving mechanism and a spindle box; the driving mechanism is connected to the base; the spindle box includes a box body, a rough milling cutter shaft, a fine milling cutter shaft, a rotary driver and a transverse driving member, the box body is installed on the output end of the driving mechanism, the rough milling cutter shaft and the fine milling cutter shaft are both rotatably arranged in the box body, the rotary driver is installed on the box body, and is used to drive the rough milling cutter shaft and the fine milling cutter shaft to rotate, and the transverse driving member is installed on the box body, and is used to drive the rough milling cutter shaft to move.

2. A double-knife machining center according to claim 1, characterized in that: The turning and milling devices are provided with two groups, and the two groups of the turning and milling devices are respectively arranged on both sides of the supporting platform.

3. A double-knife machining center according to claim 1, characterized in that: The fine milling cutter shaft is in a circular ring shape and is arranged at one end of the box body close to the supporting platform; the rough milling cutter shaft passes through the middle part of the fine milling cutter shaft.

4. A double-knife machining center according to claim 3, characterized in that: A gear ring is provided on one side of the rough milling cutter shaft close to the box body; a gear assembly is also provided on the box body, and the gear assembly includes a first telescopic drive, a rotating shaft and a gear. The rotating shaft is rotatably connected to the box body and is controlled to rotate by the rotary drive. The gear is installed at the end of the rotating shaft. The first telescopic drive is fixedly connected to the box body and is used to drive the rotating shaft to move so that the gear and the gear ring are switched between a meshing state and a staggered state.

5. A double-knife machining center according to claim 1, characterized in that: The spindle box is provided with a positioning assembly; the positioning assembly comprises a second telescopic driver and a push block, the second telescopic driver is fixedly connected to the box body, and the push block is installed on the output end of the second telescopic driver.

6. A double-knife machining center according to claim 1, characterized in that: A cooling pipe is arranged on the outer side of the rough milling cutter shaft, and the cooling pipe is installed on the spindle box.

7. A double-knife machining center according to claim 1, characterized in that: An X-axis driving assembly is installed on the base, and the bearing platform is slidably connected to the base and is controlled by the X-axis driving assembly to move along the X-axis direction.

8. A double-knife machining center according to claim 1, characterized in that: A gantry is installed on the bearing platform, and a top pressure assembly is installed on the gantry.

9. A double-knife machining center according to claim 1, characterized in that: The driving mechanism includes a Y-axis driving component, a column and a Z-axis driving component; the Y-axis driving component is installed on the base; the column is slidably connected to the base, and is controlled by the Y-axis driving component to move along the Y-axis direction; the Z-axis driving component is installed on the column; the spindle box is slidably connected to the column, and is controlled by the Z-axis driving component to move along the Z-axis direction.

10. A double-knife machining center according to claim 9, characterized in that: A counterweight assembly is installed on the column; the counterweight assembly includes a roller, a belt and a counterweight block, the roller is installed on the top of the column, the middle part of the belt is wound around the roller, and one end of the belt is fixedly connected to the spindle box, and the other end is fixedly connected to the counterweight block.

Images