Double-head milling machine for automobile die production

Abstract

The utility model relates to the technical field of machine tools, and discloses a double-head milling machine for automobile die production, which comprises a working table, the left end and the right end of the working table are fixedly connected with connecting tables, the front end and the rear end of the top of each connecting table are fixedly connected with linear guide rails, and the tops of the linear guide rails are slidably connected with a sliding table. Fixed plates are fixedly connected to the close sides of the sliding tables correspondingly, rotating plates are rotationally connected to the close sides of the fixed plates correspondingly, milling heads are installed on the close sides of the rotating plates correspondingly, sliding rods are slidably connected to the front and rear sides of the rotating plates correspondingly, and inner cavities are formed in the front and rear sides of the rotating plates correspondingly; the inner wall of the inner cavity is fixedly connected with a fixing column, and a limiting assembly is arranged in the fixing column. According to the utility model, the milling head is dismounted, so that the milling head can be quickly dismounted and replaced, the milling efficiency is prevented from being reduced due to excessive wear, and the use flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a double-head milling machine used for automobile mold production. Background Art

[0002] Automobile mold, in a narrow sense, is the general term for molds for all stamping parts on the automobile body. That is, "automobile body stamping mold". During the processing, double-head milling machines are usually used for processing. This milling machine usually has two milling heads, which can process the workpiece at the same time to improve production efficiency.

[0003] After searching, a Chinese patent with announcement number CN218109448U discloses a double milling head CNC milling machine, which includes a machine tool, two sides of the machine tool are respectively connected with side plates, a gantry is slidably connected between the opposite side plates, a driving device that can drive the gantry to move parallel to the axial direction of the side plates is connected on the side plates, two sides of the top of the gantry are respectively slidably connected with a moving box, the moving box slides along the direction perpendicular to the side plates, a lifting device is respectively connected to the moving box, a sliding sleeve is slidably connected on the lifting device, a liquid storage tank is connected on the sliding sleeve, a mounting plate is connected at the bottom of the liquid storage tank, a milling motor is connected on the mounting plate, the power output end of the milling motor is rotatably connected to the mounting plate and penetrates the mounting plate at the other end and is detachably connected to the end with a milling head, and a control box is connected at one end of the machine tool. Compared with the prior art, the advantages of the utility model are: simple operation, convenient time saving and improved efficiency.

[0004] The beneficial effects in the above patent mention that "the control box can control the driving device to drive the gantry to slide along the axial direction of the side plate, and the setting of the moving boxes on both sides facilitates the simultaneous provision of two different milling heads, which is convenient for coping with different drilling or grooving processes, saving the time of stopping and replacing the milling head, and facilitating the improvement of work efficiency...". Although the above can process the workpiece in different processes, the milling head will be worn after long-term milling, which will lead to a decrease in the milling efficiency of automobile molds and other processed parts, which is not conducive to the processing operation. Therefore, in response to the above problems, a double-head milling machine for automobile mold production is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a double-head milling machine for automobile mold production, aiming to improve the problem in the prior art that the milling head will wear after long-term milling, which will lead to a decrease in the milling efficiency of automobile molds and other processed parts.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The cam is provided with a plurality of guide rails at the top and a plurality of guide rails at the bottom, and a plurality of guide rails are provided at the top and a plurality of guide rails are provided at the bottom.

[0008] Furthermore, a connecting column is fixedly connected to the rear end of the top of the workbench, a groove is opened at the bottom of the connecting column, a servo motor is fixedly connected to the inner wall of the rear end of the groove, a threaded rod is fixedly connected to the driving end of the servo motor, the external thread of the threaded rod is connected to a sliding plate, a positioning assembly is fixedly connected to the bottom of the sliding plate, a water tank is fixedly connected to the bottom of the rear end of the connecting column, connecting pipes are fixedly connected to both sides of the top of the water tank, fixed blocks are fixedly connected to the left and right sides of the connecting column, a nozzle is fixedly connected to the middle of the fixed block, and the other end of the connecting pipe is fixedly connected to the top of the nozzle.

[0009] Furthermore, the top of the workbench is fixedly connected to a fixed platform, and the top of the fixed platform is rotatably connected to a rotating platform.

[0010] Furthermore, the limiting assembly includes multiple limiting plates, one side of the multiple limiting plates is fixedly connected to the inner wall of one end of the fixed column, the other side of the limiting plate is fixedly connected to a spring 1, and the other end of the spring 1 is fixedly connected to the inner wall of the other end of the fixed column.

[0011] Furthermore, the inner wall of one end of the second spring is fixedly connected to the front and rear inner walls of the inner cavity, and the other end of the second spring is in contact with the front and rear ends of the support rod.

[0012] Furthermore, the positioning assembly includes a hydraulic cylinder, the top of the hydraulic cylinder is fixedly connected to the bottom of the sliding plate, and the driving end of the hydraulic cylinder is fixedly connected to a pressing plate.

[0013] Furthermore, the bottom of the water tank is fixedly connected to the top rear end of the workbench, and the front end of the threaded rod is rotatably connected to the front inner wall of the groove.

[0014] Furthermore, a nut is threadedly connected to one side of the outer portion of the sliding rod, four corners of the bottom of the workbench are fixedly connected to load-bearing columns, and the bottoms of the load-bearing columns are fixedly connected to buffer pads.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the removal of the milling head is achieved through the mutual cooperation of the rotating plate, the milling head, the sliding rod, the fixed column, the limit plate, the spring 1, the spring 2, the support rod, the slot and other structures, which is conducive to the rapid removal and replacement of the milling head, avoids the reduction of milling efficiency due to excessive wear, and improves the flexibility of use.

[0017] 2. In the utility model, through the mutual cooperation of the connecting column, servo motor, threaded rod, sliding plate, hydraulic cylinder, pressing plate and other structures, the precise positioning and fixation of the automobile mold is realized, which is beneficial to the positioning and fixation of automobile molds of different sizes and improves the stability of milling. In addition, through the mutual cooperation of the water tank, connecting pipe, fixing block, nozzle and other structures, the cleaning of the workbench surface and the automobile mold is realized, which is beneficial to flush the dust and waste generated in the milling process. At the same time, the milling head is also cooled to prevent the excessive temperature during the milling process from affecting the surface of the automobile mold and improving the overall cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a double-head milling machine for automobile mold production proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the water tank structure of a double-head milling machine for automobile mold production proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the connecting column structure of a double-head milling machine for automobile mold production proposed by the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the inner structure of the inner cavity of a double-head milling machine for automobile mold production.

[0022] Legend:

[0023] 1. Workbench; 2. Connecting table; 3. Linear guide; 4. Sliding table; 5. Fixed plate; 6. Rotating plate; 7. Milling head; 8. Sliding rod; 9. Fixed column; 1001. Limit plate; 1002. Spring 1; 11. Spring 2; 12. Support rod; 13. Slot; 14. Connecting column; 15. Servo motor; 16. Threaded rod; 17. Sliding plate; 1801. Hydraulic cylinder; 1802. Pressing plate; 19. Water tank; 20. Connecting pipe; 21. Fixed block; 22. Nozzle; 23. Fixed table; 24. Rotating table; 25. Nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 , Figure 2 and Figure 4 The utility model provides an embodiment: a double-head milling machine for automobile mold production, including a workbench 1, the left and right ends of the workbench 1 are fixedly connected with a connecting table 2, the front and rear ends of the top of the connecting table 2 are fixedly connected with linear guide rails 3, the top of the linear guide rail 3 is slidably connected with a sliding table 4, the sliding table 4 moves on the linear guide rail 3, the adjacent side of the sliding table 4 is fixedly connected with a fixed plate 5, the adjacent side of the fixed plate 5 is rotatably connected with a rotating plate 6, the adjacent side of the rotating plate 6 is installed with a milling head 7, the rotating plate 6 and the milling head 7 are driven by an additional motor inside the sliding table 4, the front and rear sides of the rotating plate 6 are slidably connected with sliding rods 8, the setting of the sliding rods 8 allows the milling head 7 to be removed, the front and rear sides of the rotating plate 6 are internally provided with inner cavities, the inner wall of the inner cavity is fixedly connected with a fixing column 9, and a limiting component is arranged inside the fixing column 9.

[0026] The limiting assembly includes multiple limiting plates 1001, one side of the multiple limiting plates 1001 is fixedly connected to the inner wall of one end of the fixing column 9, and the other side of the limiting plate 1001 is fixedly connected with a spring 1002. The setting of the limiting plate 1001 prevents the spring 1002 from leaving the inside of the fixing column 9, and the other end of the spring 1002 is fixedly connected to the inner wall of the other end of the fixing column 9. The setting of the spring 1002 makes it more stable when the sliding rod 8 is pulled. A spring 2 11 is arranged inside the inner cavity, and the front and rear ends of the far side of the milling head 7 are fixedly connected with a support rod 12. The inner wall of one end of the spring 2 11 is fixedly connected to the inner walls of the front and rear sides of the inner cavity, and the other end of the spring 2 11 contacts with the front and rear ends of the support rod 12. The spring 2 11 allows the support rod 12 to quickly leave the inner cavity, and a slot 13 is provided on one side of the support rod 12. The slot 13 is square, and the other end of the sliding rod 8 is engaged with the slot 13.

[0027] Reference Figures 2 to 3 The top rear end of the workbench 1 is fixedly connected with a connecting column 14, and a groove is provided at the bottom of the connecting column 14. The rear end inner wall of the groove is fixedly connected with a servo motor 15, and the driving end of the servo motor 15 is fixedly connected with a threaded rod 16. The driving end of the servo motor 15 drives the threaded rod 16 to rotate. The front end of the threaded rod 16 is rotatably connected to the front end inner wall of the groove. The external thread of the threaded rod 16 is connected with a sliding plate 17, and the sliding plate 17 moves on the threaded rod 16. The bottom of the sliding plate 17 is fixedly connected with a positioning assembly, and the positioning assembly includes a hydraulic cylinder 1801. The top of the hydraulic cylinder 1801 is fixedly connected to the bottom of the sliding plate 17, and the driving end of the hydraulic cylinder 1801 is fixedly connected with a pressing plate 1802, and the pressing plate 1802 can position and fix the automobile mold.

[0028] Reference Figure 1 , Figure 2 and Figure 4 The bottom of the rear end of the connecting column 14 is fixedly connected with a water tank 19, and the water tank 19 contains cooling water and a water pump. The bottom of the water tank 19 is fixedly connected to the top rear end of the workbench 1, and the top two sides of the water tank 19 are fixedly connected with connecting pipes 20. The left and right sides of the connecting column 14 are fixedly connected with fixed blocks 21, and the middle of the fixed block 21 is fixedly connected with a nozzle 22. Finally, the water source is sprayed to the surface of the automobile mold and the milling head 7 through the nozzle 22, so as to perform the cleaning operation. The other end of the connecting pipe 20 is fixedly connected to the nozzle 21. The top of the head 22 and the top of the workbench 1 are fixedly connected to a fixed table 23, and the top of the fixed table 23 is rotatably connected to a rotating table 24. The automobile mold can be rotated by rotating the rotating table 24, so that the other two sides can be milled. A nut 25 is threadedly connected to the outer side of the sliding rod 8. The setting of the nut 25 enables the sliding rod 8 to be stably fixed and limited to prevent the milling head 7 from shaking due to external effects. The four corners of the bottom of the workbench 1 are fixedly connected to load-bearing columns, and the bottom of the load-bearing columns are fixedly connected to buffer pads.

[0029] Working principle: When the automobile mold needs to be milled, the automobile mold is placed on the rotating table 24. At this time, the servo motor 15 is started to make the threaded rod 16 start to rotate, so that the sliding plate 17 starts to move on it, so that the hydraulic cylinder 1801 and the pressing plate 1802 start to move back and forth, and then find their specific position. After finding their specific position, the hydraulic cylinder 1801 drives the pressing plate 1802 to descend, so that the bottom of the pressing plate 1802 positions and fixes the automobile mold. At this time, the sliding table 4 moves in the linear guide rail 3, so that the milling head 7 gradually contacts both sides of the automobile mold. At the same time, the rotating plate 6 and the milling head 7 start to rotate under the action of the internal motor, so as to perform milling operations on both sides of the automobile mold. During milling, the water tank 19 can be used to The internal water source is used for cooling and flushing. The water pump inside the water tank 19 transports the internal water source to the connecting pipe 20, and finally sprays it to the automobile mold and the milling head 7 through the nozzle 22, so as to flush the dust and waste generated during the milling process and cool the milling head 7. In addition, after multiple milling operations, the milling head 7 will be worn and need to be replaced in time. At this time, the nut 25 is turned to loosen the sliding rod 8, and then the sliding rod 8 is pulled to squeeze the spring 1002, so that the other end of the sliding rod 8 gradually leaves the slot 13. When it is completely out, the support rod 12 can be quickly separated from the inner cavity under the reaction force of the spring 2 11, thereby completing the removal of the milling head 7, facilitating its replacement operation, and improving its flexibility of use.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. 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-head milling machine for automobile mold production, comprising a workbench (1), characterized in that: The left and right ends of the workbench (1) are fixedly connected to a connection platform (2), the front and rear ends of the top of the connection platform (2) are fixedly connected to a linear guide rail (3), the top of the linear guide rail (3) is slidably connected to a sliding platform (4), the adjacent side of the sliding platform (4) is fixedly connected to a fixed plate (5), the adjacent side of the fixed plate (5) is rotatably connected to a rotating plate (6), the adjacent side of the rotating plate (6) is installed with a milling head (7), and the front and rear ends of the rotating plate (6) are fixedly connected to the sliding platform (4). The rotating plate (6) is slidably connected to a sliding rod (8) on both sides, an inner cavity is arranged inside the front and rear sides, a fixed column (9) is fixedly connected to the inner wall of the inner cavity, a limit position component is arranged inside the fixed column (9), a spring (11) is arranged inside the inner cavity, and a support rod (12) is fixedly connected to the front and rear ends of the far side of the milling head (7), a slot (13) is arranged on one side of the support rod (12), and the other end of the sliding rod (8) is engaged with the slot (13).

2. A double-head milling machine for automobile mold production according to claim 1, characterized in that: A connecting column (14) is fixedly connected to the rear end of the top of the workbench (1), a groove is provided at the bottom of the connecting column (14), a servo motor (15) is fixedly connected to the inner wall of the rear end of the groove, a threaded rod (16) is fixedly connected to the driving end of the servo motor (15), the external thread of the threaded rod (16) is connected to a sliding plate (17), a positioning assembly is fixedly connected to the bottom of the sliding plate (17), a water tank (19) is fixedly connected to the bottom of the rear end of the connecting column (14), connecting pipes (20) are fixedly connected to both sides of the top of the water tank (19), a fixing block (21) is fixedly connected to the left and right sides of the connecting column (14), a nozzle (22) is fixedly connected to the middle of the fixing block (21), and the other end of the connecting pipe (20) is fixedly connected to the top of the nozzle (22).

3. The double-head milling machine for automobile mold production according to claim 1 is characterized in that: The top of the workbench (1) is fixedly connected to a fixed platform (23), and the top of the fixed platform (23) is rotatably connected to a rotating platform (24).

4. The double-head milling machine for automobile mold production according to claim 1, characterized in that: The limiting assembly comprises a plurality of limiting plates (1001), one side of the plurality of limiting plates (1001) is fixedly connected to the inner wall of one end of the fixing column (9), the other side of the limiting plates (1001) is fixedly connected to a spring 1 (1002), and the other end of the spring 1 (1002) is fixedly connected to the inner wall of the other end of the fixing column (9).

5. The double-head milling machine for automobile mold production according to claim 1 is characterized in that: The inner wall of one end of the spring 2 (11) is fixedly connected to the inner walls of the front and rear sides of the inner cavity, and the other end of the spring 2 (11) is in contact with the front and rear ends of the support rod (12).

6. A double-head milling machine for automobile mold production according to claim 2, characterized in that: The positioning assembly comprises a hydraulic cylinder (1801), the top of the hydraulic cylinder (1801) is fixedly connected to the bottom of the sliding plate (17), and the driving end of the hydraulic cylinder (1801) is fixedly connected to a pressing plate (1802).

7. The double-head milling machine for automobile mold production according to claim 2, characterized in that: The bottom of the water tank (19) is fixedly connected to the top rear end of the workbench (1), and the front end of the threaded rod (16) is rotatably connected to the front inner wall of the groove.

8. The double-head milling machine for automobile mold production according to claim 1, characterized in that: A nut (25) is threadedly connected to one side of the outside of the sliding rod (8), and the four corners of the bottom of the workbench (1) are fixedly connected to load-bearing columns, and the bottoms of the load-bearing columns are fixedly connected to buffer pads.

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